// plasmaSwitchboard.java // (C) 2004-2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany // first published 2004 on http://yacy.net // // This is a part of YaCy, a peer-to-peer based web search engine // // $LastChangedDate$ // $LastChangedRevision$ // $LastChangedBy$ // // LICENSE // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA /* This class holds the run-time environment of the plasma Search Engine. It's data forms a blackboard which can be used to organize running jobs around the indexing algorithm. The blackboard consist of the following entities: - storage: one plasmaStore object with the url-based database - configuration: initialized by properties once, then by external functions - job queues: for parsing, condensing, indexing - black/blue/whitelists: controls input and output to the index this class is also the core of the http crawling. There are some items that need to be respected when crawling the web: 1) respect robots.txt 2) do not access one domain too frequently, wait between accesses 3) remember crawled URL's and do not access again too early 4) priorization of specific links should be possible (hot-lists) 5) attributes for crawling (depth, filters, hot/black-lists, priority) 6) different crawling jobs with different attributes ('Orders') simultanoulsy We implement some specific tasks and use different database to archieve these goals: - a database 'crawlerDisallow.db' contains all url's that shall not be crawled - a database 'crawlerDomain.db' holds all domains and access times, where we loaded the disallow tables this table contains the following entities: - four databases for scheduled access: crawlerScheduledHotText.db, crawlerScheduledColdText.db, crawlerScheduledHotMedia.db and crawlerScheduledColdMedia.db - two stacks for new URLS: newText.stack and newMedia.stack - two databases for URL double-check: knownText.db and knownMedia.db - one database with crawling orders: crawlerOrders.db The Information flow of a single URL that is crawled is as follows: - a html file is loaded from a specific URL within the module httpdProxyServlet as a process of the proxy. - the file is passed to httpdProxyCache. Here it's processing is delayed until the proxy is idle. - The cache entry is passed on to the plasmaSwitchboard. There the URL is stored into plasmaLURL where the URL is stored under a specific hash. The URL's from the content are stripped off, stored in plasmaLURL with a 'wrong' date (the date of the URL's are not known at this time, only after fetching) and stacked with plasmaCrawlerTextStack. The content is read and splitted into rated words in plasmaCondenser. The splitted words are then integrated into the index with plasmaSearch. - In plasmaSearch the words are indexed by reversing the relation between URL and words: one URL points to many words, the words within the document at the URL. After reversing, one word points to many URL's, all the URL's where the word occurrs. One single word->URL-hash relation is stored in plasmaIndexEntry. A set of plasmaIndexEntries is a reverse word index. This reverse word index is stored temporarly in plasmaIndexCache. - In plasmaIndexCache the single plasmaIndexEntry'ies are collected and stored into a plasmaIndex - entry These plasmaIndex - Objects are the true reverse words indexes. - in plasmaIndex the plasmaIndexEntry - objects are stored in a kelondroTree; an indexed file in the file system. The information flow of a search request is as follows: - in httpdFileServlet the user enters a search query, which is passed to plasmaSwitchboard - in plasmaSwitchboard, the query is passed to plasmaSearch. - in plasmaSearch, the plasmaSearch.result object is generated by simultanous enumeration of URL hases in the reverse word indexes plasmaIndex - (future: the plasmaSearch.result - object is used to identify more key words for a new search) */ package de.anomic.plasma; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.UnsupportedEncodingException; import java.lang.reflect.Constructor; import java.net.InetAddress; import java.net.MalformedURLException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.Hashtable; import java.util.Iterator; import java.util.Locale; import java.util.Map; import java.util.Properties; import java.util.Set; import java.util.Timer; import java.util.TimerTask; import java.util.TreeMap; import java.util.TreeSet; import de.anomic.data.URLLicense; import de.anomic.data.blogBoard; import de.anomic.data.blogBoardComments; import de.anomic.data.bookmarksDB; import de.anomic.data.collageQueue; import de.anomic.data.listManager; import de.anomic.data.messageBoard; import de.anomic.data.userDB; import de.anomic.data.wikiBoard; import de.anomic.data.wiki.wikiParser; import de.anomic.http.HttpClient; import de.anomic.http.JakartaCommonsHttpClient; import de.anomic.http.httpHeader; import de.anomic.http.httpRemoteProxyConfig; import de.anomic.http.httpd; import de.anomic.http.httpdProxyHandler; import de.anomic.http.httpdRobotsTxtConfig; import de.anomic.index.indexDefaultReferenceBlacklist; import de.anomic.index.indexReferenceBlacklist; import de.anomic.index.indexURLReference; import de.anomic.kelondro.kelondroBitfield; import de.anomic.kelondro.kelondroCache; import de.anomic.kelondro.kelondroCachedRecords; import de.anomic.kelondro.kelondroException; import de.anomic.kelondro.kelondroMSetTools; import de.anomic.kelondro.kelondroMapTable; import de.anomic.kelondro.kelondroNaturalOrder; import de.anomic.plasma.crawler.plasmaCrawlQueues; import de.anomic.plasma.crawler.plasmaProtocolLoader; import de.anomic.plasma.dbImport.dbImportManager; import de.anomic.plasma.parser.ParserException; import de.anomic.server.serverAbstractSwitch; import de.anomic.server.serverBusyThread; import de.anomic.server.serverDomains; import de.anomic.server.serverFileUtils; import de.anomic.server.serverInstantBusyThread; import de.anomic.server.serverMemory; import de.anomic.server.serverObjects; import de.anomic.server.serverProcessor; import de.anomic.server.serverProcessorJob; import de.anomic.server.serverProfiling; import de.anomic.server.serverSemaphore; import de.anomic.server.serverSwitch; import de.anomic.server.serverThread; import de.anomic.server.logging.serverLog; import de.anomic.tools.crypt; import de.anomic.tools.nxTools; import de.anomic.yacy.yacyClient; import de.anomic.yacy.yacyCore; import de.anomic.yacy.yacyNewsPool; import de.anomic.yacy.yacyNewsRecord; import de.anomic.yacy.yacySeed; import de.anomic.yacy.yacyURL; import de.anomic.yacy.yacyVersion; public final class plasmaSwitchboard extends serverAbstractSwitch implements serverSwitch { // load slots public static int xstackCrawlSlots = 2000; private int dhtTransferIndexCount = 100; // we must distinguish the following cases: resource-load was initiated by // 1) global crawling: the index is extern, not here (not possible here) // 2) result of search queries, some indexes are here (not possible here) // 3) result of index transfer, some of them are here (not possible here) // 4) proxy-load (initiator is "------------") // 5) local prefetch/crawling (initiator is own seedHash) // 6) local fetching for global crawling (other known or unknown initiator) public static final int PROCESSCASE_0_UNKNOWN = 0; public static final int PROCESSCASE_4_PROXY_LOAD = 4; public static final int PROCESSCASE_5_LOCAL_CRAWLING = 5; public static final int PROCESSCASE_6_GLOBAL_CRAWLING = 6; // couloured list management public static TreeSet badwords = null; public static TreeSet blueList = null; public static TreeSet stopwords = null; public static indexReferenceBlacklist urlBlacklist; public static wikiParser wikiParser = null; // storage management public File htCachePath; public File plasmaPath; public File indexPrimaryPath, indexSecondaryPath; public File listsPath; public File htDocsPath; public File rankingPath; public File workPath; public File releasePath; public HashMap rankingPermissions; public plasmaWordIndex wordIndex; public plasmaCrawlQueues crawlQueues; public plasmaCrawlResults crawlResults; public plasmaSwitchboardQueue sbQueue; public plasmaCrawlStacker crawlStacker; public messageBoard messageDB; public wikiBoard wikiDB; public blogBoard blogDB; public blogBoardComments blogCommentDB; public static plasmaCrawlRobotsTxt robots; public plasmaCrawlProfile profilesActiveCrawls, profilesPassiveCrawls; public plasmaCrawlProfile.entry defaultProxyProfile; public plasmaCrawlProfile.entry defaultRemoteProfile; public plasmaCrawlProfile.entry defaultTextSnippetProfile; public plasmaCrawlProfile.entry defaultMediaSnippetProfile; public boolean rankingOn; public plasmaRankingDistribution rankingOwnDistribution; public plasmaRankingDistribution rankingOtherDistribution; public HashMap outgoingCookies, incomingCookies; public kelondroMapTable facilityDB; public plasmaParser parser; public volatile long proxyLastAccess, localSearchLastAccess, remoteSearchLastAccess; public yacyCore yc; public userDB userDB; public bookmarksDB bookmarksDB; public plasmaWebStructure webStructure; public dbImportManager dbImportManager; public plasmaDHTFlush transferIdxThread = null; private plasmaDHTChunk dhtTransferChunk = null; public ArrayList localSearches; // array of search result properties as HashMaps public ArrayList remoteSearches; // array of search result properties as HashMaps public HashMap> localSearchTracker, remoteSearchTracker; // mappings from requesting host to a TreeSet of Long(access time) public long lastseedcheckuptime = -1; public long indexedPages = 0; public long lastindexedPages = 0; public double requestedQueries = 0d; public double lastrequestedQueries = 0d; public int totalPPM = 0; public double totalQPM = 0d; public TreeMap clusterhashes; // map of peerhash(String)/alternative-local-address as ip:port or only ip (String) or null if address in seed should be used public boolean acceptLocalURLs, acceptGlobalURLs; public URLLicense licensedURLs; public Timer moreMemory; public serverProcessor indexingDocumentProcessor; public serverProcessor indexingCondensementProcessor; public serverProcessor indexingAnalysisProcessor; public serverProcessor indexingStorageProcessor; public httpdRobotsTxtConfig robotstxtConfig = null; /* * Some constants */ public static final String STR_REMOTECRAWLTRIGGER = "REMOTECRAWLTRIGGER: REMOTE CRAWL TO PEER "; private serverSemaphore shutdownSync = new serverSemaphore(0); private boolean terminate = false; //private Object crawlingPausedSync = new Object(); //private boolean crawlingIsPaused = false; public static final int CRAWLJOB_SYNC = 0; public static final int CRAWLJOB_STATUS = 1; ////////////////////////////////////////////////////////////////////////////////////////////// // Thread settings ////////////////////////////////////////////////////////////////////////////////////////////// // 20_dhtdistribution /** *

public static final String INDEX_DIST = "20_dhtdistribution"

*

Name of the DHT distribution thread, which selects index chunks and transfers them to other peers * according to the global DHT rules

*/ public static final String INDEX_DIST = "20_dhtdistribution"; public static final String INDEX_DIST_METHOD_START = "dhtTransferJob"; public static final String INDEX_DIST_METHOD_JOBCOUNT = null; public static final String INDEX_DIST_METHOD_FREEMEM = null; public static final String INDEX_DIST_MEMPREREQ = "20_dhtdistribution_memprereq"; public static final String INDEX_DIST_IDLESLEEP = "20_dhtdistribution_idlesleep"; public static final String INDEX_DIST_BUSYSLEEP = "20_dhtdistribution_busysleep"; // 30_peerping /** *

public static final String PEER_PING = "30_peerping"

*

Name of the Peer Ping thread which publishes the own peer and retrieves information about other peers * connected to the YaCy-network

*/ public static final String PEER_PING = "30_peerping"; public static final String PEER_PING_METHOD_START = "peerPing"; public static final String PEER_PING_METHOD_JOBCOUNT = null; public static final String PEER_PING_METHOD_FREEMEM = null; public static final String PEER_PING_IDLESLEEP = "30_peerping_idlesleep"; public static final String PEER_PING_BUSYSLEEP = "30_peerping_busysleep"; // 40_peerseedcycle /** *

public static final String SEED_UPLOAD = "40_peerseedcycle"

*

Name of the seed upload thread, providing the so-called seed-lists needed during bootstrapping

*/ public static final String SEED_UPLOAD = "40_peerseedcycle"; public static final String SEED_UPLOAD_METHOD_START = "publishSeedList"; public static final String SEED_UPLOAD_METHOD_JOBCOUNT = null; public static final String SEED_UPLOAD_METHOD_FREEMEM = null; public static final String SEED_UPLOAD_IDLESLEEP = "40_peerseedcycle_idlesleep"; public static final String SEED_UPLOAD_BUSYSLEEP = "40_peerseedcycle_busysleep"; // 50_localcrawl /** *

public static final String CRAWLJOB_LOCAL_CRAWL = "50_localcrawl"

*

Name of the local crawler thread, popping one entry off the Local Crawl Queue, and passing it to the * proxy cache enqueue thread to download and further process it

* * @see plasmaSwitchboard#PROXY_CACHE_ENQUEUE */ public static final String CRAWLJOB_LOCAL_CRAWL = "50_localcrawl"; public static final String CRAWLJOB_LOCAL_CRAWL_METHOD_START = "coreCrawlJob"; public static final String CRAWLJOB_LOCAL_CRAWL_METHOD_JOBCOUNT = "coreCrawlJobSize"; public static final String CRAWLJOB_LOCAL_CRAWL_METHOD_FREEMEM = null; public static final String CRAWLJOB_LOCAL_CRAWL_IDLESLEEP = "50_localcrawl_idlesleep"; public static final String CRAWLJOB_LOCAL_CRAWL_BUSYSLEEP = "50_localcrawl_busysleep"; // 61_globalcawltrigger /** *

public static final String CRAWLJOB_REMOTE_CRAWL_LOADER = "60_remotecrawlloader"

*

Name of the remote crawl list loading thread

* * @see plasmaSwitchboard#CRAWLJOB_REMOTE_CRAWL_LOADER */ public static final String CRAWLJOB_REMOTE_CRAWL_LOADER = "60_remotecrawlloader"; public static final String CRAWLJOB_REMOTE_CRAWL_LOADER_METHOD_START = "remoteCrawlLoaderJob"; public static final String CRAWLJOB_REMOTE_CRAWL_LOADER_METHOD_JOBCOUNT = null; public static final String CRAWLJOB_REMOTE_CRAWL_LOADER_METHOD_FREEMEM = null; public static final String CRAWLJOB_REMOTE_CRAWL_LOADER_IDLESLEEP = "60_remotecrawlloader_idlesleep"; public static final String CRAWLJOB_REMOTE_CRAWL_LOADER_BUSYSLEEP = "60_remotecrawlloader_busysleep"; // 62_remotetriggeredcrawl /** *

public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL = "62_remotetriggeredcrawl"

*

Name of the remote triggered crawl thread, responsible for processing a remote crawl received from another peer

*/ public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL = "62_remotetriggeredcrawl"; public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL_METHOD_START = "remoteTriggeredCrawlJob"; public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL_METHOD_JOBCOUNT = "remoteTriggeredCrawlJobSize"; public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL_METHOD_FREEMEM = null; public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL_IDLESLEEP = "62_remotetriggeredcrawl_idlesleep"; public static final String CRAWLJOB_REMOTE_TRIGGERED_CRAWL_BUSYSLEEP = "62_remotetriggeredcrawl_busysleep"; // 70_cachemanager /** *

public static final String PROXY_CACHE_ENQUEUE = "70_cachemanager"

*

Name of the proxy cache enqueue thread which fetches a given website and saves the site itself as well as it's * HTTP-headers in the HTCACHE

* * @see plasmaSwitchboard#PROXY_CACHE_PATH */ public static final String PROXY_CACHE_ENQUEUE = "70_cachemanager"; public static final String PROXY_CACHE_ENQUEUE_METHOD_START = "htEntryStoreJob"; public static final String PROXY_CACHE_ENQUEUE_METHOD_JOBCOUNT = "htEntrySize"; public static final String PROXY_CACHE_ENQUEUE_METHOD_FREEMEM = null; public static final String PROXY_CACHE_ENQUEUE_IDLESLEEP = "70_cachemanager_idlesleep"; public static final String PROXY_CACHE_ENQUEUE_BUSYSLEEP = "70_cachemanager_busysleep"; // 74_parsing /** *

public static final String INDEXER = "80_indexing"

*

Name of the indexer thread, performing the actual indexing of a website

*/ public static final String PARSER = "74_indexing"; public static final String PARSER_MEMPREREQ = "74_indexing_memprereq"; public static final String PARSER_IDLESLEEP = "74_indexing_idlesleep"; public static final String PARSER_BUSYSLEEP = "74_indexing_busysleep"; public static final String PARSER_METHOD_START = "deQueueProcess"; public static final String PARSER_METHOD_JOBCOUNT = "queueSize"; public static final String PARSER_METHOD_FREEMEM = "deQueueFreeMem"; // 80_indexing /** *

public static final String INDEXER = "80_indexing"

*

Name of the indexer thread, performing the actual indexing of a website

*/ public static final String INDEXER = "80_indexing"; public static final String INDEXER_MEMPREREQ = "80_indexing_memprereq"; public static final String INDEXER_IDLESLEEP = "80_indexing_idlesleep"; public static final String INDEXER_BUSYSLEEP = "80_indexing_busysleep"; public static final String INDEXER_METHOD_START = "deQueueProcess"; public static final String INDEXER_METHOD_JOBCOUNT = "queueSize"; public static final String INDEXER_METHOD_FREEMEM = "deQueueFreeMem"; public static final String INDEXER_SLOTS = "indexer.slots"; // 82_crawlstack /** *

public static final String CRAWLSTACK = "82_crawlstack"

*

Name of the crawl stacker thread, performing several checks on new URLs to crawl, i.e. double-check

*/ public static final String CRAWLSTACK = "82_crawlstack"; public static final String CRAWLSTACK_METHOD_START = "job"; public static final String CRAWLSTACK_METHOD_JOBCOUNT = "size"; public static final String CRAWLSTACK_METHOD_FREEMEM = null; public static final String CRAWLSTACK_IDLESLEEP = "82_crawlstack_idlesleep"; public static final String CRAWLSTACK_BUSYSLEEP = "82_crawlstack_busysleep"; public static final String CRAWLSTACK_SLOTS = "stacker.slots"; // 90_cleanup /** *

public static final String CLEANUP = "90_cleanup"

*

The cleanup thread which is responsible for pendant cleanup-jobs, news/ranking distribution, etc.

*/ public static final String CLEANUP = "90_cleanup"; public static final String CLEANUP_METHOD_START = "cleanupJob"; public static final String CLEANUP_METHOD_JOBCOUNT = "cleanupJobSize"; public static final String CLEANUP_METHOD_FREEMEM = null; public static final String CLEANUP_IDLESLEEP = "90_cleanup_idlesleep"; public static final String CLEANUP_BUSYSLEEP = "90_cleanup_busysleep"; ////////////////////////////////////////////////////////////////////////////////////////////// // RAM Cache settings ////////////////////////////////////////////////////////////////////////////////////////////// /** *

public static final String RAM_CACHE_LURL = "ramCacheLURL"

*

Name of the setting how much memory in bytes should be assigned to the Loaded URLs DB for caching purposes

*/ public static final String RAM_CACHE_LURL_TIME = "ramCacheLURL_time"; /** *

public static final String RAM_CACHE_NURL = "ramCacheNURL"

*

Name of the setting how much memory in bytes should be assigned to the Noticed URLs DB for caching purposes

*/ public static final String RAM_CACHE_NURL_TIME = "ramCacheNURL_time"; /** *

public static final String RAM_CACHE_EURL = "ramCacheEURL"

*

Name of the setting how much memory in bytes should be assigned to the Erroneous URLs DB for caching purposes

*/ public static final String RAM_CACHE_EURL_TIME = "ramCacheEURL_time"; /** *

public static final String RAM_CACHE_RWI = "ramCacheRWI"

*

Name of the setting how much memory in bytes should be assigned to the RWIs DB for caching purposes

*/ public static final String RAM_CACHE_RWI_TIME = "ramCacheRWI_time"; /** *

public static final String RAM_CACHE_HTTP = "ramCacheHTTP"

*

Name of the setting how much memory in bytes should be assigned to the HTTP Headers DB for caching purposes

*/ public static final String RAM_CACHE_HTTP_TIME = "ramCacheHTTP_time"; /** *

public static final String RAM_CACHE_MESSAGE = "ramCacheMessage"

*

Name of the setting how much memory in bytes should be assigned to the Message DB for caching purposes

*/ public static final String RAM_CACHE_MESSAGE_TIME = "ramCacheMessage_time"; /** *

public static final String RAM_CACHE_ROBOTS = "ramCacheRobots"

*

Name of the setting how much memory in bytes should be assigned to the robots.txts DB for caching purposes

*/ public static final String RAM_CACHE_ROBOTS_TIME = "ramCacheRobots_time"; /** *

public static final String RAM_CACHE_PROFILES = "ramCacheProfiles"

*

Name of the setting how much memory in bytes should be assigned to the Crawl Profiles DB for caching purposes

*/ public static final String RAM_CACHE_PROFILES_TIME = "ramCacheProfiles_time"; /** *

public static final String RAM_CACHE_PRE_NURL = "ramCachePreNURL"

*

Name of the setting how much memory in bytes should be assigned to the Pre-Noticed URLs DB for caching purposes

*/ public static final String RAM_CACHE_PRE_NURL_TIME = "ramCachePreNURL_time"; /** *

public static final String RAM_CACHE_WIKI = "ramCacheWiki"

*

Name of the setting how much memory in bytes should be assigned to the Wiki DB for caching purposes

*/ public static final String RAM_CACHE_WIKI_TIME = "ramCacheWiki_time"; /** *

public static final String RAM_CACHE_BLOG = "ramCacheBlog"

*

Name of the setting how much memory in bytes should be assigned to the Blog DB for caching purposes

*/ public static final String RAM_CACHE_BLOG_TIME = "ramCacheBlog_time"; ////////////////////////////////////////////////////////////////////////////////////////////// // DHT settings ////////////////////////////////////////////////////////////////////////////////////////////// /** *

public static final String INDEX_DIST_DHT_RECEIPT_LIMIT = "indexDistribution.dhtReceiptLimit"

*

Name of the setting how many words the DHT-In cache may contain maximal before new DHT receipts * will be rejected

*/ public static final String INDEX_DIST_DHT_RECEIPT_LIMIT = "indexDistribution.dhtReceiptLimit"; /** *

public static final String INDEX_DIST_CHUNK_SIZE_START = "indexDistribution.startChunkSize"

*

Name of the setting specifying how many words the very first chunk will contain when the DHT-thread starts

*/ public static final String INDEX_DIST_CHUNK_SIZE_START = "indexDistribution.startChunkSize"; /** *

public static final String INDEX_DIST_CHUNK_SIZE_MIN = "indexDistribution.minChunkSize"

*

Name of the setting specifying how many words the smallest chunk may contain

*/ public static final String INDEX_DIST_CHUNK_SIZE_MIN = "indexDistribution.minChunkSize"; /** *

public static final String INDEX_DIST_CHUNK_SIZE_MAX = "indexDistribution.maxChunkSize"

*

Name of the setting specifying how many words the hugest chunk may contain

*/ public static final String INDEX_DIST_CHUNK_SIZE_MAX = "indexDistribution.maxChunkSize"; public static final String INDEX_DIST_CHUNK_FAILS_MAX = "indexDistribution.maxChunkFails"; /** *

public static final String INDEX_DIST_TIMEOUT = "indexDistribution.timeout"

*

Name of the setting how long the timeout for an Index Distribution shall be in milliseconds

*/ public static final String INDEX_DIST_TIMEOUT = "indexDistribution.timeout"; /** *

public static final String INDEX_DIST_GZIP_BODY = "indexDistribution.gzipBody"

*

Name of the setting whether DHT chunks shall be transferred gzip-encodedly

*/ public static final String INDEX_DIST_GZIP_BODY = "indexDistribution.gzipBody"; /** *

public static final String INDEX_DIST_ALLOW = "allowDistributeIndex"

*

Name of the setting whether Index Distribution shall be allowed (and the DHT-thread therefore started) or not

* * @see plasmaSwitchboard#INDEX_DIST_ALLOW_WHILE_CRAWLING */ public static final String INDEX_DIST_ALLOW = "allowDistributeIndex"; public static final String INDEX_RECEIVE_ALLOW = "allowReceiveIndex"; /** *

public static final String INDEX_DIST_ALLOW_WHILE_CRAWLING = "allowDistributeIndexWhileCrawling"

*

Name of the setting whether Index Distribution shall be allowed while crawling is in progress, i.e. * the Local Crawler Queue is filled.

*

This setting only has effect if {@link #INDEX_DIST_ALLOW} is enabled

* * @see plasmaSwitchboard#INDEX_DIST_ALLOW */ public static final String INDEX_DIST_ALLOW_WHILE_CRAWLING = "allowDistributeIndexWhileCrawling"; public static final String INDEX_DIST_ALLOW_WHILE_INDEXING = "allowDistributeIndexWhileIndexing"; public static final String INDEX_TRANSFER_TIMEOUT = "indexTransfer.timeout"; public static final String INDEX_TRANSFER_GZIP_BODY = "indexTransfer.gzipBody"; ////////////////////////////////////////////////////////////////////////////////////////////// // Ranking settings ////////////////////////////////////////////////////////////////////////////////////////////// public static final String RANKING_DIST_ON = "CRDistOn"; public static final String RANKING_DIST_0_PATH = "CRDist0Path"; public static final String RANKING_DIST_0_METHOD = "CRDist0Method"; public static final String RANKING_DIST_0_PERCENT = "CRDist0Percent"; public static final String RANKING_DIST_0_TARGET = "CRDist0Target"; public static final String RANKING_DIST_1_PATH = "CRDist1Path"; public static final String RANKING_DIST_1_METHOD = "CRDist1Method"; public static final String RANKING_DIST_1_PERCENT = "CRDist1Percent"; public static final String RANKING_DIST_1_TARGET = "CRDist1Target"; ////////////////////////////////////////////////////////////////////////////////////////////// // Parser settings ////////////////////////////////////////////////////////////////////////////////////////////// public static final String PARSER_MIMETYPES_HTML = "parseableMimeTypes.HTML"; public static final String PARSER_MIMETYPES_PROXY = "parseableMimeTypes.PROXY"; public static final String PARSER_MIMETYPES_CRAWLER = "parseableMimeTypes.CRAWLER"; public static final String PARSER_MIMETYPES_ICAP = "parseableMimeTypes.ICAP"; public static final String PARSER_MIMETYPES_URLREDIRECTOR = "parseableMimeTypes.URLREDIRECTOR"; public static final String PARSER_MIMETYPES_IMAGE = "parseableMimeTypes.IMAGE"; public static final String PARSER_MEDIA_EXT = "mediaExt"; public static final String PARSER_MEDIA_EXT_PARSEABLE = "parseableExt"; ////////////////////////////////////////////////////////////////////////////////////////////// // Proxy settings ////////////////////////////////////////////////////////////////////////////////////////////// /** *

public static final String PROXY_ONLINE_CAUTION_DELAY = "onlineCautionDelay"

*

Name of the setting how long indexing should pause after the last time the proxy was used in milliseconds

*/ public static final String PROXY_ONLINE_CAUTION_DELAY = "crawlPause.proxy"; public static final String LOCALSEACH_ONLINE_CAUTION_DELAY = "crawlPause.localsearch"; public static final String REMOTESEARCH_ONLINE_CAUTION_DELAY = "crawlPause.remotesearch"; /** *

public static final String PROXY_PREFETCH_DEPTH = "proxyPrefetchDepth"

*

Name of the setting how deep URLs fetched by proxy usage shall be followed

*/ public static final String PROXY_PREFETCH_DEPTH = "proxyPrefetchDepth"; public static final String PROXY_CRAWL_ORDER = "proxyCrawlOrder"; public static final String PROXY_INDEXING_REMOTE = "proxyIndexingRemote"; public static final String PROXY_INDEXING_LOCAL_TEXT = "proxyIndexingLocalText"; public static final String PROXY_INDEXING_LOCAL_MEDIA = "proxyIndexingLocalMedia"; public static final String PROXY_CACHE_SIZE = "proxyCacheSize"; /** *

public static final String PROXY_CACHE_LAYOUT = "proxyCacheLayout"

*

Name of the setting which file-/folder-layout the proxy cache shall use. Possible values are {@link #PROXY_CACHE_LAYOUT_TREE} * and {@link #PROXY_CACHE_LAYOUT_HASH}

* * @see plasmaSwitchboard#PROXY_CACHE_LAYOUT_TREE * @see plasmaSwitchboard#PROXY_CACHE_LAYOUT_HASH */ public static final String PROXY_CACHE_LAYOUT = "proxyCacheLayout"; /** *

public static final String PROXY_CACHE_LAYOUT_TREE = "tree"

*

Setting the file-/folder-structure for {@link #PROXY_CACHE_LAYOUT}. Websites are stored in a folder-layout * according to the layout, the URL purported. The first folder is either http or https * depending on the protocol used to fetch the website, descending follows the hostname and the sub-folders on the * website up to the actual file itself.

*

When using tree, be aware that * the possibility of inconsistencies between folders and files with the same name may occur which prevent proper * storage of the fetched site. Below is an example how files are stored:

* 
     * /html/
     * /html/www.example.com/
     * /html/www.example.com/index/
     * /html/www.example.com/index/en/
     * /html/www.example.com/index/en/index.html
*/ public static final String PROXY_CACHE_LAYOUT_TREE = "tree"; /** *

public static final String PROXY_CACHE_LAYOUT_HASH = "hash"

*

Setting the file-/folder-structure for {@link #PROXY_CACHE_LAYOUT}. Websites are stored using the MD5-sum of * their respective URLs. This method prevents collisions on some websites caused by using the {@link #PROXY_CACHE_LAYOUT_TREE} * layout.

*

Similarly to {@link #PROXY_CACHE_LAYOUT_TREE}, the top-folders name is given by the protocol used to fetch the site, * followed by either www or – if the hostname does not start with "www" – other. * Afterwards the next folder has the rest of the hostname as name, followed by a folder hash which contains * a folder consisting of the first two letters of the hash. Another folder named after the 3rd and 4th letters of the * hash follows which finally contains the file named after the full 18-characters long hash. * Below is an example how files are stored:

* 
     * /html/
     * /html/www/
     * /html/www/example.com/
     * /html/www/example.com/hash/
     * /html/www/example.com/hash/0d/
     * /html/www/example.com/hash/0d/f8/
     * /html/www/example.com/hash/0d/f8/0df83a8444f48317d8
*/ public static final String PROXY_CACHE_LAYOUT_HASH = "hash"; public static final String PROXY_CACHE_MIGRATION = "proxyCacheMigration"; ////////////////////////////////////////////////////////////////////////////////////////////// // Cluster settings ////////////////////////////////////////////////////////////////////////////////////////////// public static final String CLUSTER_MODE = "cluster.mode"; public static final String CLUSTER_MODE_PUBLIC_CLUSTER = "publiccluster"; public static final String CLUSTER_MODE_PRIVATE_CLUSTER = "privatecluster"; public static final String CLUSTER_MODE_PUBLIC_PEER = "publicpeer"; public static final String CLUSTER_PEERS_IPPORT = "cluster.peers.ipport"; ////////////////////////////////////////////////////////////////////////////////////////////// // Miscellaneous settings ////////////////////////////////////////////////////////////////////////////////////////////// public static final String CRAWL_PROFILE_PROXY = "proxy"; public static final String CRAWL_PROFILE_REMOTE = "remote"; public static final String CRAWL_PROFILE_SNIPPET_TEXT = "snippetText"; public static final String CRAWL_PROFILE_SNIPPET_MEDIA = "snippetMedia"; /** *

public static final String CRAWLER_THREADS_ACTIVE_MAX = "crawler.MaxActiveThreads"

*

Name of the setting how many active crawler-threads may maximal be running on the same time

*/ public static final String CRAWLER_THREADS_ACTIVE_MAX = "crawler.MaxActiveThreads"; public static final String OWN_SEED_FILE = "yacyOwnSeedFile"; public static final String YACY_MODE_DEBUG = "yacyDebugMode"; public static final String WORDCACHE_INIT_COUNT = "wordCacheInitCount"; /** *

public static final String WORDCACHE_MAX_COUNT = "wordCacheMaxCount"

*

Name of the setting how many words the word-cache (or DHT-Out cache) shall contain maximal. Indexing pages if the * cache has reached this limit will slow down the indexing process by flushing some of it's entries

*/ public static final String WORDCACHE_MAX_COUNT = "wordCacheMaxCount"; public static final String HTTPC_NAME_CACHE_CACHING_PATTERNS_NO = "httpc.nameCacheNoCachingPatterns"; public static final String ROBOTS_TXT = "httpd.robots.txt"; public static final String ROBOTS_TXT_DEFAULT = httpdRobotsTxtConfig.LOCKED + "," + httpdRobotsTxtConfig.DIRS; public static final String WIKIPARSER_CLASS = "wikiParser.class"; public static final String WIKIPARSER_CLASS_DEFAULT = "de.anomic.data.wikiCode"; ////////////////////////////////////////////////////////////////////////////////////////////// // Lists ////////////////////////////////////////////////////////////////////////////////////////////// /** *

public static final String BLACKLIST_CLASS = "Blacklist.class"

*

Name of the setting which Blacklist backend shall be used. Due to different requirements of users, the * {@link plasmaURLPattern}-interface has been created to support blacklist engines different from YaCy's default

*

Attention is required when the backend is changed, because different engines may have different syntaxes

*/ public static final String BLACKLIST_CLASS = "BlackLists.class"; /** *

public static final String BLACKLIST_CLASS_DEFAULT = "de.anomic.plasma.urlPattern.defaultURLPattern"

*

Package and name of YaCy's {@link indexDefaultReferenceBlacklist default} blacklist implementation

* * @see indexDefaultReferenceBlacklist for a detailed overview about the syntax of the default implementation */ public static final String BLACKLIST_CLASS_DEFAULT = "de.anomic.index.indexDefaultReferenceBlacklist"; public static final String LIST_BLUE = "plasmaBlueList"; public static final String LIST_BLUE_DEFAULT = null; public static final String LIST_BADWORDS_DEFAULT = "yacy.badwords"; public static final String LIST_STOPWORDS_DEFAULT = "yacy.stopwords"; ////////////////////////////////////////////////////////////////////////////////////////////// // DB Paths ////////////////////////////////////////////////////////////////////////////////////////////// /** *

public static final String DBPATH = "dbPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * databases containing queues are stored

*/ public static final String PLASMA_PATH = "dbPath"; public static final String PLASMA_PATH_DEFAULT = "DATA/PLASMADB"; /** *

public static final String HTCACHE_PATH = "proxyCache"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * downloaded webpages and their respective ressources and HTTP-headers are stored. It is the location containing * the proxy-cache

* * @see plasmaSwitchboard#PROXY_CACHE_LAYOUT for details on the file-layout in this path */ public static final String HTCACHE_PATH = "proxyCache"; public static final String HTCACHE_PATH_DEFAULT = "DATA/HTCACHE"; public static final String RELEASE_PATH = "releases"; public static final String RELEASE_PATH_DEFAULT = "DATA/RELEASE"; /** *

public static final String HTDOCS_PATH = "htDocsPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * user-ressources (i.e. for the fileshare or the contents displayed on www.peername.yacy) lie. * The translated templates of the webinterface will also be put in here

*/ public static final String HTDOCS_PATH = "htDocsPath"; public static final String HTDOCS_PATH_DEFAULT = "DATA/HTDOCS"; /** *

public static final String HTROOT_PATH = "htRootPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * original servlets, their stylesheets, scripts, etc. lie. It is also home of the XML-interface to YaCy

*/ public static final String HTROOT_PATH = "htRootPath"; public static final String HTROOT_PATH_DEFAULT = "htroot"; /** *

public static final String INDEX_PATH = "indexPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where the * whole database of known RWIs and URLs as well as dumps of the DHT-In and DHT-Out caches are stored

*/ public static final String INDEX_PRIMARY_PATH = "indexPrimaryPath"; // this is a relative path to the data root public static final String INDEX_SECONDARY_PATH = "indexSecondaryPath"; // this is a absolute path to any location public static final String INDEX_PATH_DEFAULT = "DATA/INDEX"; /** *

public static final String LISTS_PATH = "listsPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * user-lists like blacklists, etc. are stored

*/ public static final String LISTS_PATH = "listsPath"; public static final String LISTS_PATH_DEFAULT = "DATA/LISTS"; /** *

public static final String RANKING_PATH = "rankingPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * ranking files are stored, self-generated as well as received ranking files

* * @see plasmaSwitchboard#RANKING_DIST_0_PATH * @see plasmaSwitchboard#RANKING_DIST_1_PATH */ public static final String RANKING_PATH = "rankingPath"; public static final String RANKING_PATH_DEFAULT = "DATA/RANKING"; /** *

public static final String WORK_PATH = "wordPath"

*

Name of the setting specifying the folder beginning from the YaCy-installation's top-folder, where all * DBs containing "work" of the user are saved. Such include bookmarks, messages, wiki, blog

* * @see plasmaSwitchboard#DBFILE_BLOG * @see plasmaSwitchboard#DBFILE_BOOKMARKS * @see plasmaSwitchboard#DBFILE_BOOKMARKS_DATES * @see plasmaSwitchboard#DBFILE_BOOKMARKS_TAGS * @see plasmaSwitchboard#DBFILE_MESSAGE * @see plasmaSwitchboard#DBFILE_WIKI * @see plasmaSwitchboard#DBFILE_WIKI_BKP */ public static final String WORK_PATH = "workPath"; public static final String WORK_PATH_DEFAULT = "DATA/WORK"; ////////////////////////////////////////////////////////////////////////////////////////////// // DB files ////////////////////////////////////////////////////////////////////////////////////////////// /** *

public static final String DBFILE_MESSAGE = "message.db"

*

Name of the file containing the database holding the user's peer-messages

* * @see plasmaSwitchboard#WORK_PATH for the folder, this file lies in */ public static final String DBFILE_MESSAGE = "message.db"; /** *

public static final String DBFILE_WIKI = "wiki.db"

*

Name of the file containing the database holding the whole wiki of this peer

* * @see plasmaSwitchboard#WORK_PATH for the folder, this file lies in * @see plasmaSwitchboard#DBFILE_WIKI_BKP for the file previous versions of wiki-pages lie in */ public static final String DBFILE_WIKI = "wiki.db"; /** *

public static final String DBFILE_WIKI_BKP = "wiki-bkp.db"

*

Name of the file containing the database holding all versions but the latest of the wiki-pages of this peer

* * @see plasmaSwitchboard#WORK_PATH for the folder this file lies in * @see plasmaSwitchboard#DBFILE_WIKI for the file the latest version of wiki-pages lie in */ public static final String DBFILE_WIKI_BKP = "wiki-bkp.db"; /** *

public static final String DBFILE_BLOG = "blog.db"

*

Name of the file containing the database holding all blog-entries available on this peer

* * @see plasmaSwitchboard#WORK_PATH for the folder this file lies in */ public static final String DBFILE_BLOG = "blog.db"; /** *

public static final String DBFILE_BLOGCOMMENTS = "blogComment.db"

*

Name of the file containing the database holding all blogComment-entries available on this peer

* * @see plasmaSwitchboard#WORK_PATH for the folder this file lies in */ public static final String DBFILE_BLOGCOMMENTS = "blogComment.db"; /** *

public static final String DBFILE_BOOKMARKS = "bookmarks.db"

*

Name of the file containing the database holding all bookmarks available on this peer

* * @see plasmaSwitchboard#WORK_PATH for the folder this file lies in * @see bookmarksDB for more detailed overview about the bookmarks structure */ public static final String DBFILE_BOOKMARKS = "bookmarks.db"; /** *

public static final String DBFILE_BOOKMARKS_TAGS = "bookmarkTags.db"

*

Name of the file containing the database holding all tag->bookmark relations

* * @see plasmaSwitchboard#WORK_PATH for the folder this file lies in * @see bookmarksDB for more detailed overview about the bookmarks structure */ public static final String DBFILE_BOOKMARKS_TAGS = "bookmarkTags.db"; /** *

public static final String DBFILE_BOOKMARKS_DATES = "bookmarkDates.db"

*

Name of the file containing the database holding all date->bookmark relations

* * @see plasmaSwitchboard#WORK_PATH for the folder this file lies in * @see bookmarksDB for more detailed overview about the bookmarks structure */ public static final String DBFILE_BOOKMARKS_DATES = "bookmarkDates.db"; /** *

public static final String DBFILE_OWN_SEED = "mySeed.txt"

*

Name of the file containing the database holding this peer's seed

*/ public static final String DBFILE_OWN_SEED = "mySeed.txt"; /** *

public static final String DBFILE_CRAWL_PROFILES = "crawlProfiles0.db" *

Name of the file containing the database holding all recent crawl profiles

* * @see plasmaSwitchboard#PLASMA_PATH for the folder this file lies in */ public static final String DBFILE_ACTIVE_CRAWL_PROFILES = "crawlProfilesActive1.db"; public static final String DBFILE_PASSIVE_CRAWL_PROFILES = "crawlProfilesPassive1.db"; /** *

public static final String DBFILE_CRAWL_ROBOTS = "crawlRobotsTxt.db"

*

Name of the file containing the database holding all robots.txt-entries of the lately crawled domains

* * @see plasmaSwitchboard#PLASMA_PATH for the folder this file lies in */ public static final String DBFILE_CRAWL_ROBOTS = "crawlRobotsTxt1.db"; /** *

public static final String DBFILE_USER = "DATA/SETTINGS/user.db"

*

Path to the user-DB, beginning from the YaCy-installation's top-folder. It holds all rights the created * users have as well as all other needed data about them

*/ public static final String DBFILE_USER = "DATA/SETTINGS/user.db"; public Hashtable crawlJobsStatus = new Hashtable(); private static plasmaSwitchboard sb; public plasmaSwitchboard(File rootPath, String initPath, String configPath, boolean applyPro) { super(rootPath, initPath, configPath, applyPro); serverProfiling.startSystemProfiling(); sb=this; // set loglevel and log setLog(new serverLog("PLASMA")); if (applyPro) this.log.logInfo("This is the pro-version of YaCy"); // remote proxy configuration httpdProxyHandler.setRemoteProxyConfig(httpRemoteProxyConfig.init(this)); // TODO refactoring this.log.logConfig("Remote proxy configuration:\n" + httpdProxyHandler.getRemoteProxyConfig().toString()); // load network configuration into settings String networkUnitDefinition = getConfig("network.unit.definition", "defaults/yacy.network.freeworld.unit"); String networkGroupDefinition = getConfig("network.group.definition", "yacy.network.group"); // patch old values if (networkUnitDefinition.equals("yacy.network.unit")) { networkUnitDefinition = "defaults/yacy.network.freeworld.unit"; setConfig("network.unit.definition", networkUnitDefinition); } // include additional network definition properties into our settings // note that these properties cannot be set in the application because they are // _always_ overwritten each time with the default values. This is done so on purpose. // the network definition should be made either consistent for all peers, // or independently using a bootstrap URL Map initProps; if (networkUnitDefinition.startsWith("http://")) { try { this.setConfig(plasmaSwitchboard.loadHashMap(new yacyURL(networkUnitDefinition, null))); } catch (MalformedURLException e) { } } else { File networkUnitDefinitionFile = (networkUnitDefinition.startsWith("/")) ? new File(networkUnitDefinition) : new File(rootPath, networkUnitDefinition); if (networkUnitDefinitionFile.exists()) { initProps = serverFileUtils.loadHashMap(networkUnitDefinitionFile); this.setConfig(initProps); } } if (networkGroupDefinition.startsWith("http://")) { try { this.setConfig(plasmaSwitchboard.loadHashMap(new yacyURL(networkGroupDefinition, null))); } catch (MalformedURLException e) { } } else { File networkGroupDefinitionFile = new File(rootPath, networkGroupDefinition); if (networkGroupDefinitionFile.exists()) { initProps = serverFileUtils.loadHashMap(networkGroupDefinitionFile); this.setConfig(initProps); } } // set release locations int i = 0; String location; while (true) { location = getConfig("network.unit.update.location" + i, ""); if (location.length() == 0) break; try { yacyVersion.latestReleaseLocations.add(new yacyURL(location, null)); } catch (MalformedURLException e) { break; } i++; } // initiate url license object licensedURLs = new URLLicense(8); // set URL domain acceptance this.acceptGlobalURLs = "global.any".indexOf(getConfig("network.unit.domain", "global")) >= 0; this.acceptLocalURLs = "local.any".indexOf(getConfig("network.unit.domain", "global")) >= 0; // load values from configs this.plasmaPath = getConfigPath(PLASMA_PATH, PLASMA_PATH_DEFAULT); this.log.logConfig("Plasma DB Path: " + this.plasmaPath.toString()); this.indexPrimaryPath = getConfigPath(INDEX_PRIMARY_PATH, INDEX_PATH_DEFAULT); this.log.logConfig("Index Primary Path: " + this.indexPrimaryPath.toString()); this.indexSecondaryPath = (getConfig(INDEX_SECONDARY_PATH, "").length() == 0) ? indexPrimaryPath : new File(getConfig(INDEX_SECONDARY_PATH, "")); this.log.logConfig("Index Secondary Path: " + this.indexSecondaryPath.toString()); this.listsPath = getConfigPath(LISTS_PATH, LISTS_PATH_DEFAULT); this.log.logConfig("Lists Path: " + this.listsPath.toString()); this.htDocsPath = getConfigPath(HTDOCS_PATH, HTDOCS_PATH_DEFAULT); this.log.logConfig("HTDOCS Path: " + this.htDocsPath.toString()); this.rankingPath = getConfigPath(RANKING_PATH, RANKING_PATH_DEFAULT); this.log.logConfig("Ranking Path: " + this.rankingPath.toString()); this.rankingPermissions = new HashMap(); // mapping of permission - to filename. this.workPath = getConfigPath(WORK_PATH, WORK_PATH_DEFAULT); this.log.logConfig("Work Path: " + this.workPath.toString()); // start indexing management log.logConfig("Starting Indexing Management"); String networkName = getConfig("network.unit.name", ""); wordIndex = new plasmaWordIndex(indexPrimaryPath, indexSecondaryPath, networkName, log); crawlResults = new plasmaCrawlResults(); // start yacy core log.logConfig("Starting YaCy Protocol Core"); this.yc = new yacyCore(this); serverInstantBusyThread.oneTimeJob(yacyCore.peerActions, "loadSeedLists", yacyCore.log, 0); long startedSeedListAquisition = System.currentTimeMillis(); // set up local robots.txt this.robotstxtConfig = httpdRobotsTxtConfig.init(this); // setting timestamp of last proxy access this.proxyLastAccess = System.currentTimeMillis() - 60000; this.localSearchLastAccess = System.currentTimeMillis() - 60000; this.remoteSearchLastAccess = System.currentTimeMillis() - 60000; this.webStructure = new plasmaWebStructure(log, rankingPath, "LOCAL/010_cr/", getConfig("CRDist0Path", plasmaRankingDistribution.CR_OWN), new File(plasmaPath, "webStructure.map")); // configuring list path if (!(listsPath.exists())) listsPath.mkdirs(); // load coloured lists if (blueList == null) { // read only once upon first instantiation of this class String f = getConfig(LIST_BLUE, LIST_BLUE_DEFAULT); File plasmaBlueListFile = new File(f); if (f != null) blueList = kelondroMSetTools.loadList(plasmaBlueListFile, kelondroNaturalOrder.naturalComparator); else blueList= new TreeSet(); this.log.logConfig("loaded blue-list from file " + plasmaBlueListFile.getName() + ", " + blueList.size() + " entries, " + ppRamString(plasmaBlueListFile.length()/1024)); } // load the black-list / inspired by [AS] File blacklistsPath = getConfigPath(LISTS_PATH, LISTS_PATH_DEFAULT); String blacklistClassName = getConfig(BLACKLIST_CLASS, BLACKLIST_CLASS_DEFAULT); if (blacklistClassName.equals("de.anomic.plasma.urlPattern.defaultURLPattern")) { // patch old class location blacklistClassName = BLACKLIST_CLASS_DEFAULT; setConfig(BLACKLIST_CLASS, blacklistClassName); } this.log.logConfig("Starting blacklist engine ..."); try { Class blacklistClass = Class.forName(blacklistClassName); Constructor blacklistClassConstr = blacklistClass.getConstructor( new Class[] { File.class } ); urlBlacklist = (indexReferenceBlacklist) blacklistClassConstr.newInstance(new Object[] { blacklistsPath }); this.log.logFine("Used blacklist engine class: " + blacklistClassName); this.log.logConfig("Using blacklist engine: " + urlBlacklist.getEngineInfo()); } catch (Exception e) { this.log.logSevere("Unable to load the blacklist engine",e); System.exit(-1); } catch (Error e) { this.log.logSevere("Unable to load the blacklist engine",e); System.exit(-1); } this.log.logConfig("Loading backlist data ..."); listManager.switchboard = this; listManager.listsPath = blacklistsPath; listManager.reloadBlacklists(); // load badwords (to filter the topwords) if (badwords == null) { File badwordsFile = new File(rootPath, LIST_BADWORDS_DEFAULT); badwords = kelondroMSetTools.loadList(badwordsFile, kelondroNaturalOrder.naturalComparator); this.log.logConfig("loaded badwords from file " + badwordsFile.getName() + ", " + badwords.size() + " entries, " + ppRamString(badwordsFile.length()/1024)); } // load stopwords if (stopwords == null) { File stopwordsFile = new File(rootPath, LIST_STOPWORDS_DEFAULT); stopwords = kelondroMSetTools.loadList(stopwordsFile, kelondroNaturalOrder.naturalComparator); this.log.logConfig("loaded stopwords from file " + stopwordsFile.getName() + ", " + stopwords.size() + " entries, " + ppRamString(stopwordsFile.length()/1024)); } // load ranking tables File YBRPath = new File(rootPath, "ranking/YBR"); if (YBRPath.exists()) { plasmaSearchRankingProcess.loadYBR(YBRPath, 15); } // make crawl profiles database and default profiles this.log.logConfig("Initializing Crawl Profiles"); File profilesActiveFile = new File(this.plasmaPath, DBFILE_ACTIVE_CRAWL_PROFILES); this.profilesActiveCrawls = new plasmaCrawlProfile(profilesActiveFile); initActiveCrawlProfiles(); log.logConfig("Loaded active crawl profiles from file " + profilesActiveFile.getName() + ", " + this.profilesActiveCrawls.size() + " entries" + ", " + ppRamString(profilesActiveFile.length()/1024)); File profilesPassiveFile = new File(this.plasmaPath, DBFILE_PASSIVE_CRAWL_PROFILES); this.profilesPassiveCrawls = new plasmaCrawlProfile(profilesPassiveFile); log.logConfig("Loaded passive crawl profiles from file " + profilesPassiveFile.getName() + ", " + this.profilesPassiveCrawls.size() + " entries" + ", " + ppRamString(profilesPassiveFile.length()/1024)); // loading the robots.txt db this.log.logConfig("Initializing robots.txt DB"); File robotsDBFile = new File(this.plasmaPath, DBFILE_CRAWL_ROBOTS); robots = new plasmaCrawlRobotsTxt(robotsDBFile); this.log.logConfig("Loaded robots.txt DB from file " + robotsDBFile.getName() + ", " + robots.size() + " entries" + ", " + ppRamString(robotsDBFile.length()/1024)); // start a cache manager log.logConfig("Starting HT Cache Manager"); // create the cache directory htCachePath = getConfigPath(HTCACHE_PATH, HTCACHE_PATH_DEFAULT); this.log.logInfo("HTCACHE Path = " + htCachePath.getAbsolutePath()); long maxCacheSize = 1024 * 1024 * Long.parseLong(getConfig(PROXY_CACHE_SIZE, "2")); // this is megabyte String cacheLayout = getConfig(PROXY_CACHE_LAYOUT, PROXY_CACHE_LAYOUT_TREE); boolean cacheMigration = getConfigBool(PROXY_CACHE_MIGRATION, true); plasmaHTCache.init(htCachePath, maxCacheSize, cacheLayout, cacheMigration); // create the release download directory releasePath = getConfigPath(RELEASE_PATH, RELEASE_PATH_DEFAULT); releasePath.mkdirs(); this.log.logInfo("RELEASE Path = " + releasePath.getAbsolutePath()); // starting message board initMessages(); // starting wiki initWiki(); //starting blog initBlog(); // Init User DB this.log.logConfig("Loading User DB"); File userDbFile = new File(getRootPath(), DBFILE_USER); this.userDB = new userDB(userDbFile); this.log.logConfig("Loaded User DB from file " + userDbFile.getName() + ", " + this.userDB.size() + " entries" + ", " + ppRamString(userDbFile.length()/1024)); //Init bookmarks DB initBookmarks(); // set a high maximum cache size to current size; this is adopted later automatically int wordCacheMaxCount = Math.max((int) getConfigLong(WORDCACHE_INIT_COUNT, 30000), (int) getConfigLong(WORDCACHE_MAX_COUNT, 20000)); setConfig(WORDCACHE_MAX_COUNT, Integer.toString(wordCacheMaxCount)); wordIndex.setMaxWordCount(wordCacheMaxCount); // set a maximum amount of memory for the caches // long memprereq = Math.max(getConfigLong(INDEXER_MEMPREREQ, 0), wordIndex.minMem()); // setConfig(INDEXER_MEMPREREQ, memprereq); // setThreadPerformance(INDEXER, getConfigLong(INDEXER_IDLESLEEP, 0), getConfigLong(INDEXER_BUSYSLEEP, 0), memprereq); kelondroCachedRecords.setCacheGrowStati(40 * 1024 * 1024, 20 * 1024 * 1024); kelondroCache.setCacheGrowStati(40 * 1024 * 1024, 20 * 1024 * 1024); // make parser log.logConfig("Starting Parser"); this.parser = new plasmaParser(); /* ====================================================================== * initialize switchboard queue * ====================================================================== */ // create queue this.sbQueue = new plasmaSwitchboardQueue(wordIndex, new File(this.plasmaPath, "switchboardQueue2.stack"), this.profilesActiveCrawls); // going through the sbQueue Entries and registering all content files as in use int count = 0; plasmaSwitchboardQueue.QueueEntry queueEntry; Iterator i1 = sbQueue.entryIterator(true); while (i1.hasNext()) { queueEntry = i1.next(); if ((queueEntry != null) && (queueEntry.url() != null) && (queueEntry.cacheFile().exists())) { plasmaHTCache.filesInUse.add(queueEntry.cacheFile()); count++; } } this.log.logConfig(count + " files in htcache reported to the cachemanager as in use."); // define an extension-blacklist log.logConfig("Parser: Initializing Extension Mappings for Media/Parser"); plasmaParser.initMediaExt(plasmaParser.extString2extList(getConfig(PARSER_MEDIA_EXT,""))); plasmaParser.initSupportedHTMLFileExt(plasmaParser.extString2extList(getConfig(PARSER_MEDIA_EXT_PARSEABLE,""))); // define a realtime parsable mimetype list log.logConfig("Parser: Initializing Mime Types"); plasmaParser.initHTMLParsableMimeTypes(getConfig(PARSER_MIMETYPES_HTML, "application/xhtml+xml,text/html,text/plain")); plasmaParser.initParseableMimeTypes(plasmaParser.PARSER_MODE_PROXY, getConfig(PARSER_MIMETYPES_PROXY, null)); plasmaParser.initParseableMimeTypes(plasmaParser.PARSER_MODE_CRAWLER, getConfig(PARSER_MIMETYPES_CRAWLER, null)); plasmaParser.initParseableMimeTypes(plasmaParser.PARSER_MODE_ICAP, getConfig(PARSER_MIMETYPES_ICAP, null)); plasmaParser.initParseableMimeTypes(plasmaParser.PARSER_MODE_URLREDIRECTOR, getConfig(PARSER_MIMETYPES_URLREDIRECTOR, null)); plasmaParser.initParseableMimeTypes(plasmaParser.PARSER_MODE_IMAGE, getConfig(PARSER_MIMETYPES_IMAGE, null)); // start a loader log.logConfig("Starting Crawl Loader"); this.crawlQueues = new plasmaCrawlQueues(this, plasmaPath); /* * Creating sync objects and loading status for the crawl jobs * a) local crawl * b) remote triggered crawl * c) global crawl trigger */ this.crawlJobsStatus.put(CRAWLJOB_LOCAL_CRAWL, new Object[]{ new Object(), Boolean.valueOf(getConfig(CRAWLJOB_LOCAL_CRAWL + "_isPaused", "false"))}); this.crawlJobsStatus.put(CRAWLJOB_REMOTE_TRIGGERED_CRAWL, new Object[]{ new Object(), Boolean.valueOf(getConfig(CRAWLJOB_REMOTE_TRIGGERED_CRAWL + "_isPaused", "false"))}); this.crawlJobsStatus.put(CRAWLJOB_REMOTE_CRAWL_LOADER, new Object[]{ new Object(), Boolean.valueOf(getConfig(CRAWLJOB_REMOTE_CRAWL_LOADER + "_isPaused", "false"))}); // init cookie-Monitor this.log.logConfig("Starting Cookie Monitor"); this.outgoingCookies = new HashMap(); this.incomingCookies = new HashMap(); // init search history trackers this.localSearchTracker = new HashMap>(); // String:TreeSet - IP:set of Long(accessTime) this.remoteSearchTracker = new HashMap>(); this.localSearches = new ArrayList(); // contains search result properties as HashMaps this.remoteSearches = new ArrayList(); // init messages: clean up message symbol File notifierSource = new File(getRootPath(), getConfig(HTROOT_PATH, HTROOT_PATH_DEFAULT) + "/env/grafics/empty.gif"); File notifierDest = new File(getConfigPath(HTDOCS_PATH, HTDOCS_PATH_DEFAULT), "notifier.gif"); try { serverFileUtils.copy(notifierSource, notifierDest); } catch (IOException e) { } // clean up profiles this.log.logConfig("Cleaning Profiles"); try { cleanProfiles(); } catch (InterruptedException e) { /* Ignore this here */ } // init ranking transmission /* CRDistOn = true/false CRDist0Path = GLOBAL/010_owncr CRDist0Method = 1 CRDist0Percent = 0 CRDist0Target = CRDist1Path = GLOBAL/014_othercr/1 CRDist1Method = 9 CRDist1Percent = 30 CRDist1Target = kaskelix.de:8080,yacy.dyndns.org:8000,suma-lab.de:8080 **/ rankingOn = getConfig(RANKING_DIST_ON, "true").equals("true") && networkName.equals("freeworld"); rankingOwnDistribution = new plasmaRankingDistribution(log, new File(rankingPath, getConfig(RANKING_DIST_0_PATH, plasmaRankingDistribution.CR_OWN)), (int) getConfigLong(RANKING_DIST_0_METHOD, plasmaRankingDistribution.METHOD_ANYSENIOR), (int) getConfigLong(RANKING_DIST_0_METHOD, 0), getConfig(RANKING_DIST_0_TARGET, "")); rankingOtherDistribution = new plasmaRankingDistribution(log, new File(rankingPath, getConfig(RANKING_DIST_1_PATH, plasmaRankingDistribution.CR_OTHER)), (int) getConfigLong(RANKING_DIST_1_METHOD, plasmaRankingDistribution.METHOD_MIXEDSENIOR), (int) getConfigLong(RANKING_DIST_1_METHOD, 30), getConfig(RANKING_DIST_1_TARGET, "kaskelix.de:8080,yacy.dyndns.org:8000,suma-lab.de:8080")); // init facility DB /* log.logSystem("Starting Facility Database"); File facilityDBpath = new File(getRootPath(), "DATA/SETTINGS/"); facilityDB = new kelondroTables(facilityDBpath); facilityDB.declareMaps("backlinks", 250, 500, new String[] {"date"}, null); log.logSystem("..opened backlinks"); facilityDB.declareMaps("zeitgeist", 40, 500); log.logSystem("..opened zeitgeist"); facilityDB.declareTree("statistik", new int[]{11, 8, 8, 8, 8, 8, 8}, 0x400); log.logSystem("..opened statistik"); facilityDB.update("statistik", (new serverDate()).toShortString(false).substring(0, 11), new long[]{1,2,3,4,5,6}); long[] testresult = facilityDB.selectLong("statistik", "yyyyMMddHHm"); testresult = facilityDB.selectLong("statistik", (new serverDate()).toShortString(false).substring(0, 11)); */ // init nameCacheNoCachingList String noCachingList = getConfig(HTTPC_NAME_CACHE_CACHING_PATTERNS_NO,""); String[] noCachingEntries = noCachingList.split(","); for (i = 0; i < noCachingEntries.length; i++) { String entry = noCachingEntries[i].trim(); serverDomains.nameCacheNoCachingPatterns.add(entry); } // generate snippets cache log.logConfig("Initializing Snippet Cache"); plasmaSnippetCache.init(parser, log); String wikiParserClassName = getConfig(WIKIPARSER_CLASS, WIKIPARSER_CLASS_DEFAULT); this.log.logConfig("Loading wiki parser " + wikiParserClassName + " ..."); try { Class wikiParserClass = Class.forName(wikiParserClassName); Constructor wikiParserClassConstr = wikiParserClass.getConstructor(new Class[] { plasmaSwitchboard.class }); wikiParser = (wikiParser)wikiParserClassConstr.newInstance(new Object[] { this }); } catch (Exception e) { this.log.logSevere("Unable to load wiki parser, the wiki won't work", e); } // initializing the stackCrawlThread this.crawlStacker = new plasmaCrawlStacker(this, this.plasmaPath, (int) getConfigLong("tableTypeForPreNURL", 0), (((int) getConfigLong("tableTypeForPreNURL", 0) == 0) && (getConfigLong(CRAWLSTACK_BUSYSLEEP, 0) <= 100))); //this.sbStackCrawlThread = new plasmaStackCrawlThread(this,this.plasmaPath,ramPreNURL); //this.sbStackCrawlThread.start(); // initializing dht chunk generation this.dhtTransferChunk = null; this.dhtTransferIndexCount = (int) getConfigLong(INDEX_DIST_CHUNK_SIZE_START, 50); // init robinson cluster // before we do that, we wait some time until the seed list is loaded. while (((System.currentTimeMillis() - startedSeedListAquisition) < 8000) && (yacyCore.seedDB.sizeConnected() == 0)) try {Thread.sleep(1000);} catch (InterruptedException e) {} try {Thread.sleep(1000);} catch (InterruptedException e) {} this.clusterhashes = yacyCore.seedDB.clusterHashes(getConfig("cluster.peers.yacydomain", "")); // deploy blocking threads indexingStorageProcessor = new serverProcessor(this, "storeDocumentIndex", 1, null); indexingAnalysisProcessor = new serverProcessor(this, "webStructureAnalysis", serverProcessor.useCPU + 1, indexingStorageProcessor); indexingCondensementProcessor = new serverProcessor(this, "condenseDocument", serverProcessor.useCPU + 1, indexingAnalysisProcessor); indexingDocumentProcessor = new serverProcessor(this, "parseDocument", serverProcessor.useCPU + 1, indexingCondensementProcessor); // deploy busy threads log.logConfig("Starting Threads"); serverMemory.gc(1000, "plasmaSwitchboard, help for profiler"); // help for profiler - thq moreMemory = new Timer(); // init GC Thread - thq moreMemory.schedule(new MoreMemory(), 300000, 600000); deployThread(CLEANUP, "Cleanup", "simple cleaning process for monitoring information", null, new serverInstantBusyThread(this, CLEANUP_METHOD_START, CLEANUP_METHOD_JOBCOUNT, CLEANUP_METHOD_FREEMEM), 10000); // all 5 Minutes deployThread(CRAWLSTACK, "Crawl URL Stacker", "process that checks url for double-occurrences and for allowance/disallowance by robots.txt", null, new serverInstantBusyThread(crawlStacker, CRAWLSTACK_METHOD_START, CRAWLSTACK_METHOD_JOBCOUNT, CRAWLSTACK_METHOD_FREEMEM), 8000); deployThread(INDEXER, "Indexing", "thread that either initiates a parsing/indexing queue, distributes the index into the DHT, stores parsed documents or flushes the index cache", "/IndexCreateIndexingQueue_p.html", new serverInstantBusyThread(this, INDEXER_METHOD_START, INDEXER_METHOD_JOBCOUNT, INDEXER_METHOD_FREEMEM), 10000); deployThread(PROXY_CACHE_ENQUEUE, "Proxy Cache Enqueue", "job takes new input files from RAM stack, stores them, and hands over to the Indexing Stack", null, new serverInstantBusyThread(this, PROXY_CACHE_ENQUEUE_METHOD_START, PROXY_CACHE_ENQUEUE_METHOD_JOBCOUNT, PROXY_CACHE_ENQUEUE_METHOD_FREEMEM), 10000); deployThread(CRAWLJOB_REMOTE_TRIGGERED_CRAWL, "Remote Crawl Job", "thread that performes a single crawl/indexing step triggered by a remote peer", null, new serverInstantBusyThread(crawlQueues, CRAWLJOB_REMOTE_TRIGGERED_CRAWL_METHOD_START, CRAWLJOB_REMOTE_TRIGGERED_CRAWL_METHOD_JOBCOUNT, CRAWLJOB_REMOTE_TRIGGERED_CRAWL_METHOD_FREEMEM), 30000); deployThread(CRAWLJOB_REMOTE_CRAWL_LOADER, "Remote Crawl URL Loader", "thread that loads remote crawl lists from other peers", "", new serverInstantBusyThread(crawlQueues, CRAWLJOB_REMOTE_CRAWL_LOADER_METHOD_START, CRAWLJOB_REMOTE_CRAWL_LOADER_METHOD_JOBCOUNT, CRAWLJOB_REMOTE_CRAWL_LOADER_METHOD_FREEMEM), 30000); // error here? deployThread(CRAWLJOB_LOCAL_CRAWL, "Local Crawl", "thread that performes a single crawl step from the local crawl queue", "/IndexCreateWWWLocalQueue_p.html", new serverInstantBusyThread(crawlQueues, CRAWLJOB_LOCAL_CRAWL_METHOD_START, CRAWLJOB_LOCAL_CRAWL_METHOD_JOBCOUNT, CRAWLJOB_LOCAL_CRAWL_METHOD_FREEMEM), 10000); deployThread(SEED_UPLOAD, "Seed-List Upload", "task that a principal peer performes to generate and upload a seed-list to a ftp account", null, new serverInstantBusyThread(yc, SEED_UPLOAD_METHOD_START, SEED_UPLOAD_METHOD_JOBCOUNT, SEED_UPLOAD_METHOD_FREEMEM), 180000); deployThread(PEER_PING, "YaCy Core", "this is the p2p-control and peer-ping task", null, new serverInstantBusyThread(yc, PEER_PING_METHOD_START, PEER_PING_METHOD_JOBCOUNT, PEER_PING_METHOD_FREEMEM), 2000); deployThread(INDEX_DIST, "DHT Distribution", "selection, transfer and deletion of index entries that are not searched on your peer, but on others", null, new serverInstantBusyThread(this, INDEX_DIST_METHOD_START, INDEX_DIST_METHOD_JOBCOUNT, INDEX_DIST_METHOD_FREEMEM), 60000, Long.parseLong(getConfig(INDEX_DIST_IDLESLEEP , "5000")), Long.parseLong(getConfig(INDEX_DIST_BUSYSLEEP , "0")), Long.parseLong(getConfig(INDEX_DIST_MEMPREREQ , "1000000"))); // test routine for snippet fetch //Set query = new HashSet(); //query.add(plasmaWordIndexEntry.word2hash("Weitergabe")); //query.add(plasmaWordIndexEntry.word2hash("Zahl")); //plasmaSnippetCache.result scr = snippetCache.retrieve(new URL("http://www.heise.de/mobil/newsticker/meldung/mail/54980"), query, true); //plasmaSnippetCache.result scr = snippetCache.retrieve(new URL("http://www.heise.de/security/news/foren/go.shtml?read=1&msg_id=7301419&forum_id=72721"), query, true); //plasmaSnippetCache.result scr = snippetCache.retrieve(new URL("http://www.heise.de/kiosk/archiv/ct/2003/4/20"), query, true, 260); this.dbImportManager = new dbImportManager(this); log.logConfig("Finished Switchboard Initialization"); } public void initMessages() { this.log.logConfig("Starting Message Board"); File messageDbFile = new File(workPath, DBFILE_MESSAGE); this.messageDB = new messageBoard(messageDbFile); this.log.logConfig("Loaded Message Board DB from file " + messageDbFile.getName() + ", " + this.messageDB.size() + " entries" + ", " + ppRamString(messageDbFile.length()/1024)); } public void initWiki() { this.log.logConfig("Starting Wiki Board"); File wikiDbFile = new File(workPath, DBFILE_WIKI); this.wikiDB = new wikiBoard(wikiDbFile, new File(workPath, DBFILE_WIKI_BKP)); this.log.logConfig("Loaded Wiki Board DB from file " + wikiDbFile.getName() + ", " + this.wikiDB.size() + " entries" + ", " + ppRamString(wikiDbFile.length()/1024)); } public void initBlog() { this.log.logConfig("Starting Blog"); File blogDbFile = new File(workPath, DBFILE_BLOG); this.blogDB = new blogBoard(blogDbFile); this.log.logConfig("Loaded Blog DB from file " + blogDbFile.getName() + ", " + this.blogDB.size() + " entries" + ", " + ppRamString(blogDbFile.length()/1024)); File blogCommentDbFile = new File(workPath, DBFILE_BLOGCOMMENTS); this.blogCommentDB = new blogBoardComments(blogCommentDbFile); this.log.logConfig("Loaded Blog-Comment DB from file " + blogCommentDbFile.getName() + ", " + this.blogCommentDB.size() + " entries" + ", " + ppRamString(blogCommentDbFile.length()/1024)); } public void initBookmarks(){ this.log.logConfig("Loading Bookmarks DB"); File bookmarksFile = new File(workPath, DBFILE_BOOKMARKS); File tagsFile = new File(workPath, DBFILE_BOOKMARKS_TAGS); File datesFile = new File(workPath, DBFILE_BOOKMARKS_DATES); this.bookmarksDB = new bookmarksDB(bookmarksFile, tagsFile, datesFile); this.log.logConfig("Loaded Bookmarks DB from files "+ bookmarksFile.getName()+ ", "+tagsFile.getName()); this.log.logConfig(this.bookmarksDB.tagsSize()+" Tag, "+this.bookmarksDB.bookmarksSize()+" Bookmarks"); } public static plasmaSwitchboard getSwitchboard(){ return sb; } public boolean isRobinsonMode() { // we are in robinson mode, if we do not exchange index by dht distribution // we need to take care that search requests and remote indexing requests go only // to the peers in the same cluster, if we run a robinson cluster. return !getConfigBool(plasmaSwitchboard.INDEX_DIST_ALLOW, false) && !getConfigBool(plasmaSwitchboard.INDEX_RECEIVE_ALLOW, false); } public boolean isPublicRobinson() { // robinson peers may be member of robinson clusters, which can be public or private // this does not check the robinson attribute, only the specific subtype of the cluster String clustermode = getConfig(CLUSTER_MODE, CLUSTER_MODE_PUBLIC_PEER); return (clustermode.equals(CLUSTER_MODE_PUBLIC_CLUSTER)) || (clustermode.equals(CLUSTER_MODE_PUBLIC_PEER)); } public boolean isInMyCluster(String peer) { // check if the given peer is in the own network, if this is a robinson cluster // depending on the robinson cluster type, the peer String may be a peerhash (b64-hash) // or a ip:port String or simply a ip String // if this robinson mode does not define a cluster membership, false is returned if (peer == null) return false; if (!isRobinsonMode()) return false; String clustermode = getConfig(CLUSTER_MODE, CLUSTER_MODE_PUBLIC_PEER); if (clustermode.equals(CLUSTER_MODE_PRIVATE_CLUSTER)) { // check if we got the request from a peer in the private cluster String network = getConfig(CLUSTER_PEERS_IPPORT, ""); return network.indexOf(peer) >= 0; } else if (clustermode.equals(CLUSTER_MODE_PUBLIC_CLUSTER)) { // check if we got the request from a peer in the public cluster return this.clusterhashes.containsKey(peer); } else { return false; } } public boolean isInMyCluster(yacySeed seed) { // check if the given peer is in the own network, if this is a robinson cluster // if this robinson mode does not define a cluster membership, false is returned if (seed == null) return false; if (!isRobinsonMode()) return false; String clustermode = getConfig(CLUSTER_MODE, CLUSTER_MODE_PUBLIC_PEER); if (clustermode.equals(CLUSTER_MODE_PRIVATE_CLUSTER)) { // check if we got the request from a peer in the private cluster String network = getConfig(CLUSTER_PEERS_IPPORT, ""); return network.indexOf(seed.getPublicAddress()) >= 0; } else if (clustermode.equals(CLUSTER_MODE_PUBLIC_CLUSTER)) { // check if we got the request from a peer in the public cluster return this.clusterhashes.containsKey(seed.hash); } else { return false; } } public boolean acceptURL(yacyURL url) { // returns true if the url can be accepted accoring to network.unit.domain if (url == null) return false; String host = url.getHost(); if (host == null) return false; if (this.acceptGlobalURLs && this.acceptLocalURLs) return true; // fast shortcut to avoid dnsResolve InetAddress hostAddress = serverDomains.dnsResolve(host); // if we don't know the host, we cannot load that resource anyway. // But in case we use a proxy, it is possible that we dont have a DNS service. final httpRemoteProxyConfig remoteProxyConfig = httpdProxyHandler.getRemoteProxyConfig(); if (hostAddress == null) return ((remoteProxyConfig != null) && (remoteProxyConfig.useProxy())); // check if this is a local address and we are allowed to index local pages: boolean local = hostAddress.isSiteLocalAddress() || hostAddress.isLoopbackAddress(); //assert local == yacyURL.isLocalDomain(url.hash()); // TODO: remove the dnsResolve above! return (this.acceptGlobalURLs && !local) || (this.acceptLocalURLs && local); } public String urlExists(String hash) { // tests if hash occurrs in any database // if it exists, the name of the database is returned, // if it not exists, null is returned if (wordIndex.existsURL(hash)) return "loaded"; return this.crawlQueues.urlExists(hash); } public void urlRemove(String hash) { wordIndex.removeURL(hash); crawlResults.remove(hash); crawlQueues.urlRemove(hash); } public yacyURL getURL(String urlhash) { if (urlhash == null) return null; if (urlhash.equals(yacyURL.dummyHash)) return null; yacyURL ne = crawlQueues.getURL(urlhash); if (ne != null) return ne; indexURLReference le = wordIndex.getURL(urlhash, null, 0); if (le != null) return le.comp().url(); return null; } public plasmaSearchRankingProfile getRanking() { return (getConfig("rankingProfile", "").length() == 0) ? new plasmaSearchRankingProfile(plasmaSearchQuery.CONTENTDOM_TEXT) : new plasmaSearchRankingProfile("", crypt.simpleDecode(sb.getConfig("rankingProfile", ""), null)); } /** * This method changes the HTCache size.
* @param newCacheSize in MB */ public final void setCacheSize(long newCacheSize) { plasmaHTCache.setCacheSize(1048576 * newCacheSize); } public boolean onlineCaution() { return (System.currentTimeMillis() - this.proxyLastAccess < Integer.parseInt(getConfig(PROXY_ONLINE_CAUTION_DELAY, "30000"))) || (System.currentTimeMillis() - this.localSearchLastAccess < Integer.parseInt(getConfig(LOCALSEACH_ONLINE_CAUTION_DELAY, "30000"))) || (System.currentTimeMillis() - this.remoteSearchLastAccess < Integer.parseInt(getConfig(REMOTESEARCH_ONLINE_CAUTION_DELAY, "30000"))); } private static String ppRamString(long bytes) { if (bytes < 1024) return bytes + " KByte"; bytes = bytes / 1024; if (bytes < 1024) return bytes + " MByte"; bytes = bytes / 1024; if (bytes < 1024) return bytes + " GByte"; return (bytes / 1024) + "TByte"; } private void initActiveCrawlProfiles() { this.defaultProxyProfile = null; this.defaultRemoteProfile = null; this.defaultTextSnippetProfile = null; this.defaultMediaSnippetProfile = null; Iterator i = this.profilesActiveCrawls.profiles(true); plasmaCrawlProfile.entry profile; String name; while (i.hasNext()) { profile = i.next(); name = profile.name(); if (name.equals(CRAWL_PROFILE_PROXY)) this.defaultProxyProfile = profile; if (name.equals(CRAWL_PROFILE_REMOTE)) this.defaultRemoteProfile = profile; if (name.equals(CRAWL_PROFILE_SNIPPET_TEXT)) this.defaultTextSnippetProfile = profile; if (name.equals(CRAWL_PROFILE_SNIPPET_MEDIA)) this.defaultMediaSnippetProfile = profile; } if (this.defaultProxyProfile == null) { // generate new default entry for proxy crawling this.defaultProxyProfile = this.profilesActiveCrawls.newEntry("proxy", null, ".*", ".*", Integer.parseInt(getConfig(PROXY_PREFETCH_DEPTH, "0")), Integer.parseInt(getConfig(PROXY_PREFETCH_DEPTH, "0")), 60 * 24, -1, -1, false, getConfigBool(PROXY_INDEXING_LOCAL_TEXT, true), getConfigBool(PROXY_INDEXING_LOCAL_MEDIA, true), true, true, getConfigBool(PROXY_INDEXING_REMOTE, false), true, true, true); } if (this.defaultRemoteProfile == null) { // generate new default entry for remote crawling defaultRemoteProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_REMOTE, null, ".*", ".*", 0, 0, -1, -1, -1, true, true, true, false, true, false, true, true, false); } if (this.defaultTextSnippetProfile == null) { // generate new default entry for snippet fetch and optional crawling defaultTextSnippetProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_TEXT, null, ".*", ".*", 0, 0, 60 * 24 * 30, -1, -1, true, true, true, true, true, false, true, true, false); } if (this.defaultMediaSnippetProfile == null) { // generate new default entry for snippet fetch and optional crawling defaultMediaSnippetProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_MEDIA, null, ".*", ".*", 0, 0, 60 * 24 * 30, -1, -1, true, false, true, true, true, false, true, true, false); } } private void resetProfiles() { final File pdb = new File(plasmaPath, DBFILE_ACTIVE_CRAWL_PROFILES); if (pdb.exists()) pdb.delete(); profilesActiveCrawls = new plasmaCrawlProfile(pdb); initActiveCrawlProfiles(); } /** * {@link plasmaCrawlProfile Crawl Profiles} are saved independantly from the queues themselves * and therefore have to be cleaned up from time to time. This method only performs the clean-up * if - and only if - the {@link plasmaSwitchboardQueue switchboard}, * {@link plasmaProtocolLoader loader} and {@link plasmaCrawlNURL local crawl} queues are all empty. *

* Then it iterates through all existing {@link plasmaCrawlProfile crawl profiles} and removes * all profiles which are not hardcoded. *

*

* If this method encounters DB-failures, the profile DB will be resetted and * true will be returned *

* @see #CRAWL_PROFILE_PROXY hardcoded * @see #CRAWL_PROFILE_REMOTE hardcoded * @see #CRAWL_PROFILE_SNIPPET_TEXT hardcoded * @see #CRAWL_PROFILE_SNIPPET_MEDIA hardcoded * @return whether this method has done something or not (i.e. because the queues have been filled * or there are no profiles left to clean up) * @throws InterruptedException if the current thread has been interrupted, i.e. by the * shutdown procedure */ public boolean cleanProfiles() throws InterruptedException { if ((sbQueue.size() > 0) || (crawlQueues.size() > 0) || (crawlStacker != null && crawlStacker.size() > 0) || (crawlQueues.noticeURL.notEmpty())) return false; final Iterator iter = profilesActiveCrawls.profiles(true); plasmaCrawlProfile.entry entry; boolean hasDoneSomething = false; try { while (iter.hasNext()) { // check for interruption if (Thread.currentThread().isInterrupted()) throw new InterruptedException("Shutdown in progress"); // getting next profile entry = iter.next(); if (!((entry.name().equals(CRAWL_PROFILE_PROXY)) || (entry.name().equals(CRAWL_PROFILE_REMOTE)) || (entry.name().equals(CRAWL_PROFILE_SNIPPET_TEXT)) || (entry.name().equals(CRAWL_PROFILE_SNIPPET_MEDIA)))) { profilesPassiveCrawls.newEntry(entry.map()); iter.remove(); hasDoneSomething = true; } } } catch (kelondroException e) { resetProfiles(); hasDoneSomething = true; } return hasDoneSomething; } public boolean htEntryStoreProcess(plasmaHTCache.Entry entry) { if (entry == null) return false; /* ========================================================================= * PARSER SUPPORT * * Testing if the content type is supported by the available parsers * ========================================================================= */ boolean isSupportedContent = plasmaParser.supportedContent(entry.url(),entry.getMimeType()); /* ========================================================================= * INDEX CONTROL HEADER * * With the X-YACY-Index-Control header set to "no-index" a client could disallow * yacy to index the response returned as answer to a request * ========================================================================= */ boolean doIndexing = true; if (entry.requestProhibitsIndexing()) { doIndexing = false; if (this.log.isFine()) this.log.logFine("Crawling of " + entry.url() + " prohibited by request."); } /* ========================================================================= * LOCAL IP ADDRESS CHECK * * check if ip is local ip address // TODO: remove this procotol specific code here * ========================================================================= */ if (!acceptURL(entry.url())) { if (this.log.isFine()) this.log.logFine("Host in URL '" + entry.url() + "' is not in defined indexing domain."); doIndexing = false; } synchronized (sbQueue) { /* ========================================================================= * STORING DATA * * Now we store the response header and response content if * a) the user has configured to use the htcache or * b) the content should be indexed * ========================================================================= */ if (((entry.profile() != null) && (entry.profile().storeHTCache())) || (doIndexing && isSupportedContent)) { // store response header if (entry.writeResourceInfo()) { this.log.logInfo("WROTE HEADER for " + entry.cacheFile()); } // work off unwritten files if (entry.cacheArray() == null) { //this.log.logFine("EXISTING FILE (" + entry.cacheFile.length() + " bytes) for " + entry.cacheFile); } else { String error = entry.shallStoreCacheForProxy(); if (error == null) { plasmaHTCache.writeResourceContent(entry.url(), entry.cacheArray()); if (this.log.isFine()) this.log.logFine("WROTE FILE (" + entry.cacheArray().length + " bytes) for " + entry.cacheFile()); } else { if (this.log.isFine()) this.log.logFine("WRITE OF FILE " + entry.cacheFile() + " FORBIDDEN: " + error); } } } /* ========================================================================= * INDEXING * ========================================================================= */ if (doIndexing && isSupportedContent){ // registering the cachefile as in use if (entry.cacheFile().exists()) { plasmaHTCache.filesInUse.add(entry.cacheFile()); } // enqueue for further crawling enQueue(this.sbQueue.newEntry( entry.url(), (entry.referrerURL() == null) ? null : entry.referrerURL().hash(), entry.ifModifiedSince(), entry.requestWithCookie(), entry.initiator(), entry.depth(), entry.profile().handle(), entry.name() )); } else { if (!entry.profile().storeHTCache() && entry.cacheFile().exists()) { plasmaHTCache.deleteURLfromCache(entry.url()); } } } return true; } public boolean htEntryStoreJob() { if (plasmaHTCache.empty()) return false; return htEntryStoreProcess(plasmaHTCache.pop()); } public int htEntrySize() { return plasmaHTCache.size(); } public void close() { log.logConfig("SWITCHBOARD SHUTDOWN STEP 1: sending termination signal to managed threads:"); serverProfiling.stopSystemProfiling(); moreMemory.cancel(); terminateAllThreads(true); if (transferIdxThread != null) stopTransferWholeIndex(false); log.logConfig("SWITCHBOARD SHUTDOWN STEP 2: sending termination signal to threaded indexing"); // closing all still running db importer jobs indexingDocumentProcessor.shutdown(4000); indexingCondensementProcessor.shutdown(3000); indexingAnalysisProcessor.shutdown(2000); indexingStorageProcessor.shutdown(1000); this.dbImportManager.close(); JakartaCommonsHttpClient.closeAllConnections(); wikiDB.close(); blogDB.close(); blogCommentDB.close(); userDB.close(); bookmarksDB.close(); messageDB.close(); if (facilityDB != null) facilityDB.close(); crawlStacker.close(); profilesActiveCrawls.close(); robots.close(); parser.close(); plasmaHTCache.close(); sbQueue.close(); webStructure.flushCitationReference("crg"); webStructure.close(); crawlQueues.close(); log.logConfig("SWITCHBOARD SHUTDOWN STEP 3: sending termination signal to database manager (stand by...)"); wordIndex.close(); yc.close(); log.logConfig("SWITCHBOARD SHUTDOWN TERMINATED"); } public int queueSize() { return sbQueue.size(); } public void enQueue(plasmaSwitchboardQueue.QueueEntry job) { assert job != null; if (!(job instanceof plasmaSwitchboardQueue.QueueEntry)) { System.out.println("Internal error at plasmaSwitchboard.enQueue: wrong job type"); System.exit(0); } try { sbQueue.push((plasmaSwitchboardQueue.QueueEntry) job); } catch (IOException e) { log.logSevere("IOError in plasmaSwitchboard.enQueue: " + e.getMessage(), e); } } public void deQueueFreeMem() { // flush some entries from the RAM cache wordIndex.flushCacheSome(); // adopt maximum cache size to current size to prevent that further OutOfMemoryErrors occur /* int newMaxCount = Math.max(1200, Math.min((int) getConfigLong(WORDCACHE_MAX_COUNT, 1200), wordIndex.dhtOutCacheSize())); setConfig(WORDCACHE_MAX_COUNT, Integer.toString(newMaxCount)); wordIndex.setMaxWordCount(newMaxCount); */ } public plasmaSwitchboardQueue.QueueEntry deQueue() { // getting the next entry from the indexing queue plasmaSwitchboardQueue.QueueEntry nextentry = null; synchronized (sbQueue) { // do one processing step if (this.log.isFine()) log.logFine("DEQUEUE: sbQueueSize=" + sbQueue.size() + ", coreStackSize=" + crawlQueues.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_CORE) + ", limitStackSize=" + crawlQueues.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_LIMIT) + ", overhangStackSize=" + crawlQueues.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_OVERHANG) + ", remoteStackSize=" + crawlQueues.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_REMOTE)); try { int sizeBefore = sbQueue.size(); nextentry = sbQueue.pop(); if (nextentry == null) { log.logWarning("deQueue: null entry on queue stack."); if (sbQueue.size() == sizeBefore) { // this is a severe problem: because this time a null is returned, it means that this status will last forever // to re-enable use of the sbQueue, it must be emptied completely log.logSevere("deQueue: does not shrink after pop() == null. Emergency reset."); sbQueue.clear(); } return null; } } catch (IOException e) { log.logSevere("IOError in plasmaSwitchboard.deQueue: " + e.getMessage(), e); return null; } return nextentry; } } public boolean deQueueProcess() { try { // work off fresh entries from the proxy or from the crawler if (onlineCaution()) { if (this.log.isFine()) log.logFine("deQueue: online caution, omitting resource stack processing"); return false; } boolean doneSomething = false; // flush some entries from the RAM cache if (sbQueue.size() == 0) { doneSomething = wordIndex.flushCacheSome() > 0; // permanent flushing only if we are not busy } // possibly delete entries from last chunk if ((this.dhtTransferChunk != null) && (this.dhtTransferChunk.getStatus() == plasmaDHTChunk.chunkStatus_COMPLETE)) { String deletedURLs = this.dhtTransferChunk.deleteTransferIndexes(); if (this.log.isFine()) this.log.logFine("Deleted from " + this.dhtTransferChunk.containers().length + " transferred RWIs locally, removed " + deletedURLs + " URL references"); this.dhtTransferChunk = null; } // generate a dht chunk if ((dhtShallTransfer() == null) && ( (this.dhtTransferChunk == null) || (this.dhtTransferChunk.getStatus() == plasmaDHTChunk.chunkStatus_UNDEFINED) || // (this.dhtTransferChunk.getStatus() == plasmaDHTChunk.chunkStatus_COMPLETE) || (this.dhtTransferChunk.getStatus() == plasmaDHTChunk.chunkStatus_FAILED) )) { // generate new chunk int minChunkSize = (int) getConfigLong(INDEX_DIST_CHUNK_SIZE_MIN, 30); dhtTransferChunk = new plasmaDHTChunk(this.log, wordIndex, minChunkSize, dhtTransferIndexCount, 5000); doneSomething = true; } // check for interruption checkInterruption(); // getting the next entry from the indexing queue if (sbQueue.size() == 0) { //log.logFine("deQueue: nothing to do, queue is emtpy"); return doneSomething; // nothing to do } if (crawlStacker.size() >= getConfigLong(CRAWLSTACK_SLOTS, 2000)) { if (this.log.isFine()) log.logFine("deQueue: too many processes in stack crawl thread queue (" + "stackCrawlQueue=" + crawlStacker.size() + ")"); return doneSomething; } // if we were interrupted we should return now if (Thread.currentThread().isInterrupted()) { if (this.log.isFine()) log.logFine("deQueue: thread was interrupted"); return false; } // get next queue entry and start a queue processing plasmaSwitchboardQueue.QueueEntry queueEntry = deQueue(); assert queueEntry != null; if (queueEntry == null) return true; if (queueEntry.profile() == null) { queueEntry.close(); return true; } sbQueue.enQueueToActive(queueEntry); // check for interruption checkInterruption(); this.indexingDocumentProcessor.enQueue(new indexingQueueEntry(queueEntry, null, null)); /* // THE FOLLOWING CAN BE CONCURRENT -> // parse and index the resource indexingQueueEntry document = parseDocument(new indexingQueueEntry(queueEntry, null, null)); // do condensing indexingQueueEntry condensement = condenseDocument(document); // do a web structure analysis indexingQueueEntry analysis = webStructureAnalysis(condensement); // <- CONCURRENT UNTIL HERE, THEN SERIALIZE AGAIN // store the result storeDocumentIndex(analysis); */ return true; } catch (InterruptedException e) { log.logInfo("DEQUEUE: Shutdown detected."); return false; } } public static class indexingQueueEntry extends serverProcessorJob { public plasmaSwitchboardQueue.QueueEntry queueEntry; public plasmaParserDocument document; public plasmaCondenser condenser; public indexingQueueEntry( plasmaSwitchboardQueue.QueueEntry queueEntry, plasmaParserDocument document, plasmaCondenser condenser) { super(); this.queueEntry = queueEntry; this.document = document; this.condenser = condenser; } } public int cleanupJobSize() { int c = 0; if ((crawlQueues.delegatedURL.stackSize() > 1000)) c++; if ((crawlQueues.errorURL.stackSize() > 1000)) c++; for (int i = 1; i <= 6; i++) { if (crawlResults.getStackSize(i) > 1000) c++; } return c; } public boolean cleanupJob() { try { boolean hasDoneSomething = false; // close unused connections JakartaCommonsHttpClient.cleanup(); // do transmission of CR-files checkInterruption(); int count = rankingOwnDistribution.size() / 100; if (count == 0) count = 1; if (count > 5) count = 5; if (rankingOn) { rankingOwnDistribution.transferRanking(count); rankingOtherDistribution.transferRanking(1); } // clean up delegated stack checkInterruption(); if ((crawlQueues.delegatedURL.stackSize() > 1000)) { if (this.log.isFine()) log.logFine("Cleaning Delegated-URLs report stack, " + crawlQueues.delegatedURL.stackSize() + " entries on stack"); crawlQueues.delegatedURL.clearStack(); hasDoneSomething = true; } // clean up error stack checkInterruption(); if ((crawlQueues.errorURL.stackSize() > 1000)) { if (this.log.isFine()) log.logFine("Cleaning Error-URLs report stack, " + crawlQueues.errorURL.stackSize() + " entries on stack"); crawlQueues.errorURL.clearStack(); hasDoneSomething = true; } // clean up loadedURL stack for (int i = 1; i <= 6; i++) { checkInterruption(); if (crawlResults.getStackSize(i) > 1000) { if (this.log.isFine()) log.logFine("Cleaning Loaded-URLs report stack, " + crawlResults.getStackSize(i) + " entries on stack " + i); crawlResults.clearStack(i); hasDoneSomething = true; } } // clean up profiles checkInterruption(); if (cleanProfiles()) hasDoneSomething = true; // clean up news checkInterruption(); try { if (this.log.isFine()) log.logFine("Cleaning Incoming News, " + yacyCore.newsPool.size(yacyNewsPool.INCOMING_DB) + " entries on stack"); if (yacyCore.newsPool.automaticProcess() > 0) hasDoneSomething = true; } catch (IOException e) {} if (getConfigBool("cleanup.deletionProcessedNews", true)) { yacyCore.newsPool.clear(yacyNewsPool.PROCESSED_DB); } if (getConfigBool("cleanup.deletionPublishedNews", true)) { yacyCore.newsPool.clear(yacyNewsPool.PUBLISHED_DB); } // clean up seed-dbs if(getConfigBool("routing.deleteOldSeeds.permission",true)) { final long deleteOldSeedsTime = getConfigLong("routing.deleteOldSeeds.time",7)*24*3600000; Iterator e = yacyCore.seedDB.seedsSortedDisconnected(true,yacySeed.LASTSEEN); yacySeed seed = null; ArrayList deleteQueue = new ArrayList(); checkInterruption(); //clean passive seeds while(e.hasNext()) { seed = e.next(); if(seed != null) { //list is sorted -> break when peers are too young to delete if(seed.getLastSeenUTC() > (System.currentTimeMillis()-deleteOldSeedsTime)) break; deleteQueue.add(seed.hash); } } for(int i=0;i break when peers are too young to delete if(seed.getLastSeenUTC() > (System.currentTimeMillis()-deleteOldSeedsTime)) break; deleteQueue.add(seed.hash); } } for (int i = 0; i < deleteQueue.size(); ++i) yacyCore.seedDB.removePotential((String)deleteQueue.get(i)); } // check if update is available and // if auto-update is activated perform an automatic installation and restart yacyVersion updateVersion = yacyVersion.rulebasedUpdateInfo(false); if (updateVersion != null) { // there is a version that is more recent. Load it and re-start with it log.logInfo("AUTO-UPDATE: downloading more recent release " + updateVersion.url); File downloaded = yacyVersion.downloadRelease(updateVersion); boolean devenvironment = yacyVersion.combined2prettyVersion(sb.getConfig("version","0.1")).startsWith("dev"); if (devenvironment) { log.logInfo("AUTO-UPDATE: omiting update because this is a development environment"); } else if ((downloaded == null) || (!downloaded.exists()) || (downloaded.length() == 0)) { log.logInfo("AUTO-UPDATE: omiting update because download failed (file cannot be found or is too small)"); } else { yacyVersion.deployRelease(downloaded); terminate(5000); log.logInfo("AUTO-UPDATE: deploy and restart initiated"); } } // initiate broadcast about peer startup to spread supporter url if (yacyCore.newsPool.size(yacyNewsPool.OUTGOING_DB) == 0) { // read profile final Properties profile = new Properties(); FileInputStream fileIn = null; try { fileIn = new FileInputStream(new File("DATA/SETTINGS/profile.txt")); profile.load(fileIn); } catch(IOException e) { } finally { if (fileIn != null) try { fileIn.close(); } catch (Exception e) {} } String homepage = (String) profile.get("homepage"); if ((homepage != null) && (homepage.length() > 10)) { Properties news = new Properties(); news.put("homepage", profile.get("homepage")); yacyCore.newsPool.publishMyNews(yacyNewsRecord.newRecord(yacyNewsPool.CATEGORY_PROFILE_BROADCAST, news)); } } /* // set a maximum amount of memory for the caches // long memprereq = Math.max(getConfigLong(INDEXER_MEMPREREQ, 0), wordIndex.minMem()); // setConfig(INDEXER_MEMPREREQ, memprereq); // setThreadPerformance(INDEXER, getConfigLong(INDEXER_IDLESLEEP, 0), getConfigLong(INDEXER_BUSYSLEEP, 0), memprereq); kelondroCachedRecords.setCacheGrowStati(40 * 1024 * 1024, 20 * 1024 * 1024); kelondroCache.setCacheGrowStati(40 * 1024 * 1024, 20 * 1024 * 1024); */ // update the cluster set this.clusterhashes = yacyCore.seedDB.clusterHashes(getConfig("cluster.peers.yacydomain", "")); return hasDoneSomething; } catch (InterruptedException e) { this.log.logInfo("cleanupJob: Shutdown detected"); return false; } } /** * Creates a new File instance with absolute path of ours Seed File.
* @return a new File instance */ public File getOwnSeedFile() { return getConfigPath(OWN_SEED_FILE, DBFILE_OWN_SEED); } /** * With this function the crawling process can be paused * @param jobType */ public void pauseCrawlJob(String jobType) { Object[] status = (Object[])this.crawlJobsStatus.get(jobType); synchronized(status[CRAWLJOB_SYNC]) { status[CRAWLJOB_STATUS] = Boolean.TRUE; } setConfig(jobType + "_isPaused", "true"); } /** * Continue the previously paused crawling * @param jobType */ public void continueCrawlJob(String jobType) { Object[] status = (Object[])this.crawlJobsStatus.get(jobType); synchronized(status[CRAWLJOB_SYNC]) { if (((Boolean)status[CRAWLJOB_STATUS]).booleanValue()) { status[CRAWLJOB_STATUS] = Boolean.FALSE; status[CRAWLJOB_SYNC].notifyAll(); } } setConfig(jobType + "_isPaused", "false"); } /** * @param jobType * @return true if crawling was paused or false otherwise */ public boolean crawlJobIsPaused(String jobType) { Object[] status = (Object[])this.crawlJobsStatus.get(jobType); synchronized(status[CRAWLJOB_SYNC]) { return ((Boolean)status[CRAWLJOB_STATUS]).booleanValue(); } } public indexingQueueEntry parseDocument(indexingQueueEntry in) { in.queueEntry.updateStatus(plasmaSwitchboardQueue.QUEUE_STATE_PARSING); plasmaParserDocument document = null; try { document = parseDocument(in.queueEntry); } catch (InterruptedException e) { document = null; } if (document == null) { if (!in.queueEntry.profile().storeHTCache()) { plasmaHTCache.filesInUse.remove(in.queueEntry.cacheFile()); //plasmaHTCache.deleteURLfromCache(entry.url()); } in.queueEntry.close(); return null; } else { plasmaCrawlProfile.entry profile = profilesActiveCrawls.getEntry(in.queueEntry.profileHandle); collageQueue.registerImages(document, (profile == null) ? true : !profile.remoteIndexing()); } return new indexingQueueEntry(in.queueEntry, document, null); } private plasmaParserDocument parseDocument(plasmaSwitchboardQueue.QueueEntry entry) throws InterruptedException { plasmaParserDocument document = null; int processCase = entry.processCase(); if (this.log.isFine()) log.logFine("processResourceStack processCase=" + processCase + ", depth=" + entry.depth() + ", maxDepth=" + ((entry.profile() == null) ? "null" : Integer.toString(entry.profile().generalDepth())) + ", filter=" + ((entry.profile() == null) ? "null" : entry.profile().generalFilter()) + ", initiatorHash=" + entry.initiator() + //", responseHeader=" + ((entry.responseHeader() == null) ? "null" : entry.responseHeader().toString()) + ", url=" + entry.url()); // DEBUG // PARSE CONTENT long parsingStartTime = System.currentTimeMillis(); try { // parse the document document = parser.parseSource(entry.url(), entry.getMimeType(), entry.getCharacterEncoding(), entry.cacheFile()); assert(document != null) : "Unexpected error. Parser returned null."; if (document == null) return null; } catch (ParserException e) { this.log.logInfo("Unable to parse the resource '" + entry.url() + "'. " + e.getMessage()); addURLtoErrorDB(entry.url(), entry.referrerHash(), entry.initiator(), entry.anchorName(), e.getErrorCode(), new kelondroBitfield()); if (document != null) { document.close(); document = null; } return null; } long parsingEndTime = System.currentTimeMillis(); // get the document date Date docDate = entry.getModificationDate(); // put anchors on crawl stack long stackStartTime = System.currentTimeMillis(); if ( ((processCase == PROCESSCASE_4_PROXY_LOAD) || (processCase == PROCESSCASE_5_LOCAL_CRAWLING)) && ((entry.profile() == null) || (entry.depth() < entry.profile().generalDepth())) ) { Map hl = document.getHyperlinks(); Iterator> i = hl.entrySet().iterator(); yacyURL nextUrl; Map.Entry nextEntry; while (i.hasNext()) { // check for interruption checkInterruption(); // fetching the next hyperlink nextEntry = i.next(); nextUrl = nextEntry.getKey(); // enqueue the hyperlink into the pre-notice-url db crawlStacker.enqueueEntry(nextUrl, entry.urlHash(), entry.initiator(), nextEntry.getValue(), docDate, entry.depth() + 1, entry.profile()); } long stackEndTime = System.currentTimeMillis(); if (log.isInfo()) log.logInfo("CRAWL: ADDED " + hl.size() + " LINKS FROM " + entry.url().toNormalform(false, true) + ", NEW CRAWL STACK SIZE IS " + crawlQueues.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_CORE) + ", STACKING TIME = " + (stackEndTime-stackStartTime) + ", PARSING TIME = " + (parsingEndTime-parsingStartTime)); } return document; } public indexingQueueEntry condenseDocument(indexingQueueEntry in) { in.queueEntry.updateStatus(plasmaSwitchboardQueue.QUEUE_STATE_CONDENSING); plasmaCondenser condenser = null; try { condenser = condenseDocument(in.queueEntry, in.document); } catch (InterruptedException e) { condenser = null; } if (condenser == null) { if (!in.queueEntry.profile().storeHTCache()) { plasmaHTCache.filesInUse.remove(in.queueEntry.cacheFile()); //plasmaHTCache.deleteURLfromCache(entry.url()); } in.queueEntry.close(); return null; } return new indexingQueueEntry(in.queueEntry, in.document, condenser); } private plasmaCondenser condenseDocument(plasmaSwitchboardQueue.QueueEntry entry, plasmaParserDocument document) throws InterruptedException { // CREATE INDEX String dc_title = document.dc_title(); yacyURL referrerURL = entry.referrerURL(); int processCase = entry.processCase(); String noIndexReason = plasmaCrawlEURL.DENIED_UNSPECIFIED_INDEXING_ERROR; if (processCase == PROCESSCASE_4_PROXY_LOAD) { // proxy-load noIndexReason = entry.shallIndexCacheForProxy(); } else { // normal crawling noIndexReason = entry.shallIndexCacheForCrawler(); } if (noIndexReason != null) { // check for interruption checkInterruption(); log.logInfo("Not indexed any word in URL " + entry.url() + "; cause: " + noIndexReason); addURLtoErrorDB(entry.url(), (referrerURL == null) ? null : referrerURL.hash(), entry.initiator(), dc_title, noIndexReason, new kelondroBitfield()); /* if ((processCase == PROCESSCASE_6_GLOBAL_CRAWLING) && (initiatorPeer != null)) { if (clusterhashes != null) initiatorPeer.setAlternativeAddress((String) clusterhashes.get(initiatorPeer.hash)); yacyClient.crawlReceipt(initiatorPeer, "crawl", "rejected", noIndexReason, null, ""); } */ document.close(); document = null; return null; } // strip out words checkInterruption(); if (this.log.isFine()) log.logFine("Condensing for '" + entry.url().toNormalform(false, true) + "'"); plasmaCondenser condenser; try { condenser = new plasmaCondenser(document, entry.profile().indexText(), entry.profile().indexMedia()); } catch (UnsupportedEncodingException e) { return null; } return condenser; } public indexingQueueEntry webStructureAnalysis(indexingQueueEntry in) { in.queueEntry.updateStatus(plasmaSwitchboardQueue.QUEUE_STATE_STRUCTUREANALYSIS); in.document.notifyWebStructure(webStructure, in.condenser, in.queueEntry.getModificationDate()); return in; } public void storeDocumentIndex(indexingQueueEntry in) { in.queueEntry.updateStatus(plasmaSwitchboardQueue.QUEUE_STATE_INDEXSTORAGE); storeDocumentIndex(in.queueEntry, in.document, in.condenser); if (!in.queueEntry.profile().storeHTCache()) { plasmaHTCache.filesInUse.remove(in.queueEntry.cacheFile()); //plasmaHTCache.deleteURLfromCache(entry.url()); } in.queueEntry.updateStatus(plasmaSwitchboardQueue.QUEUE_STATE_FINISHED); in.queueEntry.close(); } private void storeDocumentIndex(plasmaSwitchboardQueue.QueueEntry entry, plasmaParserDocument document, plasmaCondenser condenser) { // CREATE INDEX String dc_title = document.dc_title(); yacyURL referrerURL = entry.referrerURL(); int processCase = entry.processCase(); // remove stopwords log.logInfo("Excluded " + condenser.excludeWords(stopwords) + " words in URL " + entry.url()); // STORE URL TO LOADED-URL-DB indexURLReference newEntry = null; try { newEntry = wordIndex.storeDocument(entry, document, condenser); } catch (IOException e) { if (this.log.isFine()) log.logFine("Not Indexed Resource '" + entry.url().toNormalform(false, true) + "': process case=" + processCase); addURLtoErrorDB(entry.url(), referrerURL.hash(), entry.initiator(), dc_title, "error storing url: " + e.getMessage(), new kelondroBitfield()); return; } // update statistics crawlResults.stack( newEntry, // loaded url db entry entry.initiator(), // initiator peer hash yacyCore.seedDB.mySeed().hash, // executor peer hash processCase // process case ); // STORE WORD INDEX if ((!entry.profile().indexText()) && (!entry.profile().indexMedia())) { if (this.log.isFine()) log.logFine("Not Indexed Resource '" + entry.url().toNormalform(false, true) + "': process case=" + processCase); addURLtoErrorDB(entry.url(), referrerURL.hash(), entry.initiator(), dc_title, plasmaCrawlEURL.DENIED_UNKNOWN_INDEXING_PROCESS_CASE, new kelondroBitfield()); return; } // increment number of indexed urls indexedPages++; // update profiling info plasmaProfiling.updateIndexedPage(entry); // if this was performed for a remote crawl request, notify requester yacySeed initiatorPeer = entry.initiatorPeer(); if ((processCase == PROCESSCASE_6_GLOBAL_CRAWLING) && (initiatorPeer != null)) { log.logInfo("Sending crawl receipt for '" + entry.url().toNormalform(false, true) + "' to " + initiatorPeer.getName()); if (clusterhashes != null) initiatorPeer.setAlternativeAddress((String) clusterhashes.get(initiatorPeer.hash)); // start a thread for receipt sending to avoid a blocking here new Thread(new receiptSending(initiatorPeer, newEntry)).start(); } } public class receiptSending implements Runnable { yacySeed initiatorPeer; indexURLReference reference; public receiptSending(yacySeed initiatorPeer, indexURLReference reference) { this.initiatorPeer = initiatorPeer; this.reference = reference; } public void run() { yacyClient.crawlReceipt(initiatorPeer, "crawl", "fill", "indexed", reference, ""); } } private static SimpleDateFormat DateFormatter = new SimpleDateFormat("EEE, dd MMM yyyy"); public static String dateString(Date date) { if (date == null) return ""; else return DateFormatter.format(date); } // we need locale independent RFC-822 dates at some places private static SimpleDateFormat DateFormatter822 = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss Z", Locale.US); public static String dateString822(Date date) { if (date == null) return ""; else return DateFormatter822.format(date); } public serverObjects action(String actionName, serverObjects actionInput) { // perform an action. (not used) return null; } public String toString() { // it is possible to use this method in the cgi pages. // actually it is used there for testing purpose return "PROPS: " + super.toString() + "; QUEUE: " + sbQueue.toString(); } // method for index deletion public int removeAllUrlReferences(yacyURL url, boolean fetchOnline) { return removeAllUrlReferences(url.hash(), fetchOnline); } public int removeAllUrlReferences(String urlhash, boolean fetchOnline) { // find all the words in a specific resource and remove the url reference from every word index // finally, delete the url entry // determine the url string indexURLReference entry = wordIndex.getURL(urlhash, null, 0); if (entry == null) return 0; indexURLReference.Components comp = entry.comp(); if (comp.url() == null) return 0; InputStream resourceContent = null; try { // get the resource content Object[] resource = plasmaSnippetCache.getResource(comp.url(), fetchOnline, 10000, true); resourceContent = (InputStream) resource[0]; Long resourceContentLength = (Long) resource[1]; // parse the resource plasmaParserDocument document = plasmaSnippetCache.parseDocument(comp.url(), resourceContentLength.longValue(), resourceContent); // get the word set Set words = null; try { words = new plasmaCondenser(document, true, true).words().keySet(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } // delete all word references int count = 0; if (words != null) count = wordIndex.removeWordReferences(words, urlhash); // finally delete the url entry itself wordIndex.removeURL(urlhash); return count; } catch (ParserException e) { return 0; } finally { if (resourceContent != null) try { resourceContent.close(); } catch (Exception e) {/* ignore this */} } } public int adminAuthenticated(httpHeader header) { String adminAccountBase64MD5 = getConfig(httpd.ADMIN_ACCOUNT_B64MD5, ""); String authorization = ((String) header.get(httpHeader.AUTHORIZATION, "xxxxxx")).trim().substring(6); // security check against too long authorization strings if (authorization.length() > 256) return 0; // authorization by encoded password, only for localhost access if ((((String) header.get(httpHeader.CONNECTION_PROP_CLIENTIP, "")).equals("localhost")) && (adminAccountBase64MD5.equals(authorization))) return 3; // soft-authenticated for localhost // authorization by hit in userDB if (userDB.hasAdminRight((String) header.get(httpHeader.AUTHORIZATION, "xxxxxx"), ((String) header.get(httpHeader.CONNECTION_PROP_CLIENTIP, "")), header.getHeaderCookies())) return 4; //return, because 4=max // authorization with admin keyword in configuration return httpd.staticAdminAuthenticated(authorization, this); } public boolean verifyAuthentication(httpHeader header, boolean strict) { // handle access rights switch (adminAuthenticated(header)) { case 0: // wrong password given try { Thread.sleep(3000); } catch (InterruptedException e) { } // prevent brute-force return false; case 1: // no password given return false; case 2: // no password stored return !strict; case 3: // soft-authenticated for localhost only return true; case 4: // hard-authenticated, all ok return true; } return false; } public void setPerformance(int wantedPPM) { // we consider 3 cases here // wantedPPM <= 10: low performance // 10 < wantedPPM < 1000: custom performance // 1000 <= wantedPPM : maximum performance if (wantedPPM <= 10) wantedPPM = 10; if (wantedPPM >= 1000) wantedPPM = 1000; int newBusySleep = 60000 / wantedPPM; // for wantedPPM = 10: 6000; for wantedPPM = 1000: 60 serverBusyThread thread; thread = getThread(INDEX_DIST); if (thread != null) { setConfig(INDEX_DIST_BUSYSLEEP , thread.setBusySleep(Math.max(2000, thread.setBusySleep(newBusySleep * 2)))); thread.setIdleSleep(30000); } thread = getThread(CRAWLJOB_LOCAL_CRAWL); if (thread != null) { setConfig(CRAWLJOB_LOCAL_CRAWL_BUSYSLEEP , thread.setBusySleep(newBusySleep)); thread.setIdleSleep(1000); } thread = getThread(PROXY_CACHE_ENQUEUE); if (thread != null) { setConfig(PROXY_CACHE_ENQUEUE_BUSYSLEEP , thread.setBusySleep(0)); thread.setIdleSleep(1000); } thread = getThread(INDEXER); if (thread != null) { setConfig(INDEXER_BUSYSLEEP , thread.setBusySleep(newBusySleep / 2)); thread.setIdleSleep(1000); } } public static int accessFrequency(HashMap> tracker, String host) { // returns the access frequency in queries per hour for a given host and a specific tracker long timeInterval = 1000 * 60 * 60; TreeSet accessSet = tracker.get(host); if (accessSet == null) return 0; return accessSet.tailSet(new Long(System.currentTimeMillis() - timeInterval)).size(); } public void startTransferWholeIndex(yacySeed seed, boolean delete) { if (transferIdxThread == null) { this.transferIdxThread = new plasmaDHTFlush(this.log, this.wordIndex, seed, delete, "true".equalsIgnoreCase(getConfig(INDEX_TRANSFER_GZIP_BODY, "false")), (int) getConfigLong(INDEX_TRANSFER_TIMEOUT, 60000)); this.transferIdxThread.start(); } } public void stopTransferWholeIndex(boolean wait) { if ((transferIdxThread != null) && (transferIdxThread.isAlive()) && (!transferIdxThread.isFinished())) { try { this.transferIdxThread.stopIt(wait); } catch (InterruptedException e) { } } } public void abortTransferWholeIndex(boolean wait) { if (transferIdxThread != null) { if (!transferIdxThread.isFinished()) try { this.transferIdxThread.stopIt(wait); } catch (InterruptedException e) { } transferIdxThread = null; } } public String dhtShallTransfer() { if (yacyCore.seedDB == null) { return "no DHT distribution: seedDB == null"; } if (yacyCore.seedDB.mySeed() == null) { return "no DHT distribution: mySeed == null"; } if (yacyCore.seedDB.mySeed().isVirgin()) { return "no DHT distribution: status is virgin"; } if (yacyCore.seedDB.noDHTActivity()) { return "no DHT distribution: network too small"; } if (!this.getConfigBool("network.unit.dht", true)) { return "no DHT distribution: disabled by network.unit.dht"; } if (getConfig(INDEX_DIST_ALLOW, "false").equalsIgnoreCase("false")) { return "no DHT distribution: not enabled (ser setting)"; } if (wordIndex.countURL() < 10) { return "no DHT distribution: loadedURL.size() = " + wordIndex.countURL(); } if (wordIndex.size() < 100) { return "no DHT distribution: not enough words - wordIndex.size() = " + wordIndex.size(); } if ((getConfig(INDEX_DIST_ALLOW_WHILE_CRAWLING, "false").equalsIgnoreCase("false")) && (crawlQueues.noticeURL.notEmpty())) { return "no DHT distribution: crawl in progress: noticeURL.stackSize() = " + crawlQueues.noticeURL.size() + ", sbQueue.size() = " + sbQueue.size(); } if ((getConfig(INDEX_DIST_ALLOW_WHILE_INDEXING, "false").equalsIgnoreCase("false")) && (sbQueue.size() > 1)) { return "no DHT distribution: indexing in progress: noticeURL.stackSize() = " + crawlQueues.noticeURL.size() + ", sbQueue.size() = " + sbQueue.size(); } return null; // this means; yes, please do dht transfer } public boolean dhtTransferJob() { String rejectReason = dhtShallTransfer(); if (rejectReason != null) { if (this.log.isFine()) log.logFine(rejectReason); return false; } if (this.dhtTransferChunk == null) { if (this.log.isFine()) log.logFine("no DHT distribution: no transfer chunk defined"); return false; } if ((this.dhtTransferChunk != null) && (this.dhtTransferChunk.getStatus() != plasmaDHTChunk.chunkStatus_FILLED)) { if (this.log.isFine()) log.logFine("no DHT distribution: index distribution is in progress, status=" + this.dhtTransferChunk.getStatus()); return false; } // do the transfer int peerCount = Math.max(1, (yacyCore.seedDB.mySeed().isJunior()) ? (int) getConfigLong("network.unit.dhtredundancy.junior", 1) : (int) getConfigLong("network.unit.dhtredundancy.senior", 1)); // set redundancy factor long starttime = System.currentTimeMillis(); boolean ok = dhtTransferProcess(dhtTransferChunk, peerCount); if (ok) { dhtTransferChunk.setStatus(plasmaDHTChunk.chunkStatus_COMPLETE); if (this.log.isFine()) log.logFine("DHT distribution: transfer COMPLETE"); // adopt transfer count if ((System.currentTimeMillis() - starttime) > (10000 * peerCount)) { dhtTransferIndexCount--; } else { if (dhtTransferChunk.indexCount() >= dhtTransferIndexCount) dhtTransferIndexCount++; } int minChunkSize = (int) getConfigLong(INDEX_DIST_CHUNK_SIZE_MIN, 30); int maxChunkSize = (int) getConfigLong(INDEX_DIST_CHUNK_SIZE_MAX, 3000); if (dhtTransferIndexCount < minChunkSize) dhtTransferIndexCount = minChunkSize; if (dhtTransferIndexCount > maxChunkSize) dhtTransferIndexCount = maxChunkSize; // show success return true; } else { dhtTransferChunk.incTransferFailedCounter(); int maxChunkFails = (int) getConfigLong(INDEX_DIST_CHUNK_FAILS_MAX, 1); if (dhtTransferChunk.getTransferFailedCounter() >= maxChunkFails) { //System.out.println("DEBUG: " + dhtTransferChunk.getTransferFailedCounter() + " of " + maxChunkFails + " sendings failed for this chunk, aborting!"); dhtTransferChunk.setStatus(plasmaDHTChunk.chunkStatus_FAILED); if (this.log.isFine()) log.logFine("DHT distribution: transfer FAILED"); } else { //System.out.println("DEBUG: " + dhtTransferChunk.getTransferFailedCounter() + " of " + maxChunkFails + " sendings failed for this chunk, retrying!"); if (this.log.isFine()) log.logFine("DHT distribution: transfer FAILED, sending this chunk again"); } return false; } } public boolean dhtTransferProcess(plasmaDHTChunk dhtChunk, int peerCount) { if ((yacyCore.seedDB == null) || (yacyCore.seedDB.sizeConnected() == 0)) return false; try { // find a list of DHT-peers double maxDist = 0.2; ArrayList seeds = yacyCore.dhtAgent.getDHTTargets(log, peerCount, Math.min(8, (int) (yacyCore.seedDB.sizeConnected() * maxDist)), dhtChunk.firstContainer().getWordHash(), dhtChunk.lastContainer().getWordHash(), maxDist); if (seeds.size() < peerCount) { log.logWarning("found not enough (" + seeds.size() + ") peers for distribution for dhtchunk [" + dhtChunk.firstContainer().getWordHash() + " .. " + dhtChunk.lastContainer().getWordHash() + "]"); return false; } // send away the indexes to all these peers int hc1 = 0; // getting distribution configuration values boolean gzipBody = getConfig(INDEX_DIST_GZIP_BODY, "false").equalsIgnoreCase("true"); int timeout = (int)getConfigLong(INDEX_DIST_TIMEOUT, 60000); int retries = 0; // starting up multiple DHT transfer threads Iterator seedIter = seeds.iterator(); ArrayList transfer = new ArrayList(peerCount); while (hc1 < peerCount && (transfer.size() > 0 || seedIter.hasNext())) { // starting up some transfer threads int transferThreadCount = transfer.size(); for (int i=0; i < peerCount-hc1-transferThreadCount; i++) { // check for interruption checkInterruption(); if (seedIter.hasNext()) { plasmaDHTTransfer t = new plasmaDHTTransfer(log, (yacySeed)seedIter.next(), dhtChunk,gzipBody,timeout,retries); t.start(); transfer.add(t); } else { break; } } // waiting for the transfer threads to finish Iterator transferIter = transfer.iterator(); while (transferIter.hasNext()) { // check for interruption checkInterruption(); plasmaDHTTransfer t = transferIter.next(); if (!t.isAlive()) { // remove finished thread from the list transferIter.remove(); // count successful transfers if (t.getStatus() == plasmaDHTChunk.chunkStatus_COMPLETE) { this.log.logInfo("DHT distribution: transfer to peer " + t.getSeed().getName() + " finished."); hc1++; } } } if (hc1 < peerCount) Thread.sleep(100); } // clean up and finish with deletion of indexes if (hc1 >= peerCount) { // success return true; } this.log.logSevere("Index distribution failed. Too few peers (" + hc1 + ") received the index, not deleted locally."); return false; } catch (InterruptedException e) { return false; } } private void addURLtoErrorDB( yacyURL url, String referrerHash, String initiator, String name, String failreason, kelondroBitfield flags ) { // create a new errorURL DB entry plasmaCrawlEntry bentry = new plasmaCrawlEntry( initiator, url, referrerHash, (name == null) ? "" : name, new Date(), null, 0, 0, 0); plasmaCrawlZURL.Entry ee = crawlQueues.errorURL.newEntry( bentry, initiator, new Date(), 0, failreason); // store the entry ee.store(); // push it onto the stack crawlQueues.errorURL.push(ee); } public void checkInterruption() throws InterruptedException { Thread curThread = Thread.currentThread(); if ((curThread instanceof serverThread) && ((serverThread)curThread).shutdownInProgress()) throw new InterruptedException("Shutdown in progress ..."); else if (this.terminate || curThread.isInterrupted()) throw new InterruptedException("Shutdown in progress ..."); } public void terminate(long delay) { if (delay <= 0) throw new IllegalArgumentException("The shutdown delay must be greater than 0."); (new delayedShutdown(this,delay)).start(); } public void terminate() { this.terminate = true; this.shutdownSync.V(); } public boolean isTerminated() { return this.terminate; } public boolean waitForShutdown() throws InterruptedException { this.shutdownSync.P(); return this.terminate; } /** * loads the url as Map * * Strings like abc=123 are parsed as pair: abc => 123 * * @param url * @return */ public static Map loadHashMap(yacyURL url) { try { // sending request final HashMap result = nxTools.table( HttpClient.wget(url.toString()) , "UTF-8"); if (result == null) return new HashMap(); return result; } catch (Exception e) { return new HashMap(); } } } class MoreMemory extends TimerTask { public final void run() { serverMemory.gc(10000, "MoreMemory()"); } } class delayedShutdown extends Thread { private plasmaSwitchboard sb; private long delay; public delayedShutdown(plasmaSwitchboard sb, long delay) { this.sb = sb; this.delay = delay; } public void run() { try { Thread.sleep(delay); } catch (InterruptedException e) { sb.getLog().logInfo("interrupted delayed shutdown"); } this.sb.terminate(); } }