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1034 lines
49 KiB
1034 lines
49 KiB
// plasmaWordIndex.java
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// (C) 2005, 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 2005 on http://www.anomic.de
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package de.anomic.plasma;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeSet;
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import de.anomic.crawler.CrawlProfile;
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import de.anomic.crawler.IndexingStack;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.http.httpdProxyCacheEntry;
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import de.anomic.index.indexCollectionRI;
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import de.anomic.index.indexContainer;
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import de.anomic.index.indexContainerOrder;
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import de.anomic.index.indexRAMRI;
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import de.anomic.index.indexRI;
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import de.anomic.index.indexRWIEntry;
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import de.anomic.index.indexRWIRowEntry;
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import de.anomic.index.indexReferenceBlacklist;
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import de.anomic.index.indexRepositoryReference;
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import de.anomic.index.indexURLReference;
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import de.anomic.index.indexWord;
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import de.anomic.index.indexRepositoryReference.Export;
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import de.anomic.kelondro.kelondroException;
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import de.anomic.kelondro.kelondroRotateIterator;
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import de.anomic.kelondro.index.RowCollection;
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import de.anomic.kelondro.order.Base64Order;
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import de.anomic.kelondro.order.ByteOrder;
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import de.anomic.kelondro.order.CloneableIterator;
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import de.anomic.kelondro.order.kelondroMergeIterator;
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import de.anomic.kelondro.order.kelondroOrder;
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import de.anomic.kelondro.tools.MemoryControl;
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import de.anomic.server.serverProfiling;
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import de.anomic.server.logging.serverLog;
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import de.anomic.tools.iso639;
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import de.anomic.xml.RSSFeed;
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import de.anomic.xml.RSSMessage;
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import de.anomic.yacy.yacyNewsPool;
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import de.anomic.yacy.yacyPeerActions;
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import de.anomic.yacy.yacySeedDB;
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import de.anomic.yacy.yacyURL;
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public final class plasmaWordIndex implements indexRI {
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// environment constants
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public static final long wCacheMaxAge = 1000 * 60 * 30; // milliseconds; 30 minutes
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public static final int wCacheMaxChunk = 800; // maximum number of references for each urlhash
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public static final int lowcachedivisor = 900;
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public static final int maxCollectionPartition = 7; // should be 7
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public static final String CRAWL_PROFILE_PROXY = "proxy";
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public static final String CRAWL_PROFILE_REMOTE = "remote";
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public static final String CRAWL_PROFILE_SNIPPET_LOCAL_TEXT = "snippetLocalText";
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public static final String CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT = "snippetGlobalText";
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public static final String CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA = "snippetLocalMedia";
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public static final String CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA = "snippetGlobalMedia";
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public static final String DBFILE_ACTIVE_CRAWL_PROFILES = "crawlProfilesActive.heap";
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public static final String DBFILE_PASSIVE_CRAWL_PROFILES = "crawlProfilesPassive.heap";
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public static final long CRAWL_PROFILE_PROXY_RECRAWL_CYCLE = 60L * 24L;
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public static final long CRAWL_PROFILE_SNIPPET_LOCAL_TEXT_RECRAWL_CYCLE = 60L * 24L * 30L;
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public static final long CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT_RECRAWL_CYCLE = 60L * 24L * 30L;
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public static final long CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA_RECRAWL_CYCLE = 60L * 24L * 30L;
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public static final long CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA_RECRAWL_CYCLE = 60L * 24L * 30L;
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private final ByteOrder indexOrder = Base64Order.enhancedCoder;
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private final indexRAMRI dhtCache;
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private final indexCollectionRI collections; // new database structure to replace AssortmentCluster and FileCluster
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private final serverLog log;
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private indexRepositoryReference referenceURL;
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public final yacySeedDB seedDB;
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public yacyNewsPool newsPool;
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private final File primaryRoot, secondaryRoot;
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public IndexingStack queuePreStack;
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public CrawlProfile profilesActiveCrawls, profilesPassiveCrawls;
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public CrawlProfile.entry defaultProxyProfile;
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public CrawlProfile.entry defaultRemoteProfile;
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public CrawlProfile.entry defaultTextSnippetLocalProfile, defaultTextSnippetGlobalProfile;
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public CrawlProfile.entry defaultMediaSnippetLocalProfile, defaultMediaSnippetGlobalProfile;
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private final File queuesRoot;
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public yacyPeerActions peerActions;
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public plasmaWordIndex(
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final String networkName,
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final serverLog log,
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final File indexPrimaryRoot,
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final File indexSecondaryRoot,
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final int entityCacheMaxSize,
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final boolean useCommons,
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final int redundancy,
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final int partitionExponent) {
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if (networkName == null || networkName.length() == 0) {
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log.logSevere("no network name given - shutting down");
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System.exit(0);
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}
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this.log = log;
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this.primaryRoot = new File(indexPrimaryRoot, networkName);
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this.secondaryRoot = new File(indexSecondaryRoot, networkName);
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File indexPrimaryTextLocation = new File(this.primaryRoot, "TEXT");
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if (!indexPrimaryTextLocation.exists()) {
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// patch old index locations; the secondary path is patched in plasmaCrawlLURL
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final File oldPrimaryPath = new File(new File(indexPrimaryRoot, "PUBLIC"), "TEXT");
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final File oldPrimaryTextLocation = new File(new File(indexPrimaryRoot, "PUBLIC"), "TEXT");
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if (oldPrimaryPath.exists() && oldPrimaryTextLocation.exists()) {
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// move the text folder from the old location to the new location
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assert !indexPrimaryTextLocation.exists();
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indexPrimaryTextLocation.mkdirs();
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if (oldPrimaryTextLocation.renameTo(indexPrimaryTextLocation)) {
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if (!oldPrimaryPath.delete()) oldPrimaryPath.deleteOnExit();
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} else {
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indexPrimaryTextLocation = oldPrimaryTextLocation; // emergency case: stay with old directory
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}
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}
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}
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final File textindexcache = new File(indexPrimaryTextLocation, "RICACHE");
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if (!(textindexcache.exists())) textindexcache.mkdirs();
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if (new File(textindexcache, "index.dhtin.blob").exists()) {
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// migration of the both caches into one
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this.dhtCache = new indexRAMRI(textindexcache, indexRWIRowEntry.urlEntryRow, entityCacheMaxSize, wCacheMaxChunk, wCacheMaxAge, "index.dhtout.blob", log);
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indexRAMRI dhtInCache = new indexRAMRI(textindexcache, indexRWIRowEntry.urlEntryRow, entityCacheMaxSize, wCacheMaxChunk, wCacheMaxAge, "index.dhtin.blob", log);
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for (indexContainer c: dhtInCache) {
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this.dhtCache.addEntries(c);
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}
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new File(textindexcache, "index.dhtin.blob").delete();
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} else {
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// read in new BLOB
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this.dhtCache = new indexRAMRI(textindexcache, indexRWIRowEntry.urlEntryRow, entityCacheMaxSize, wCacheMaxChunk, wCacheMaxAge, "index.dhtout.blob", log);
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}
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// create collections storage path
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final File textindexcollections = new File(indexPrimaryTextLocation, "RICOLLECTION");
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if (!(textindexcollections.exists())) textindexcollections.mkdirs();
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this.collections = new indexCollectionRI(textindexcollections, "collection", maxCollectionPartition, indexRWIRowEntry.urlEntryRow, useCommons);
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// create LURL-db
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referenceURL = new indexRepositoryReference(this.secondaryRoot);
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// make crawl profiles database and default profiles
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this.queuesRoot = new File(this.primaryRoot, "QUEUES");
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this.queuesRoot.mkdirs();
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this.log.logConfig("Initializing Crawl Profiles");
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final File profilesActiveFile = new File(queuesRoot, DBFILE_ACTIVE_CRAWL_PROFILES);
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if (!profilesActiveFile.exists()) {
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// migrate old file
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final File oldFile = new File(new File(queuesRoot.getParentFile().getParentFile().getParentFile(), "PLASMADB"), "crawlProfilesActive1.db");
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if (oldFile.exists()) oldFile.renameTo(profilesActiveFile);
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}
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try {
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this.profilesActiveCrawls = new CrawlProfile(profilesActiveFile);
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} catch (IOException e) {
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profilesActiveFile.delete();
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try {
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this.profilesActiveCrawls = new CrawlProfile(profilesActiveFile);
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} catch (IOException e1) {
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e1.printStackTrace();
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this.profilesActiveCrawls = null;
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}
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}
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initActiveCrawlProfiles();
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log.logConfig("Loaded active crawl profiles from file " + profilesActiveFile.getName() +
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", " + this.profilesActiveCrawls.size() + " entries" +
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", " + profilesActiveFile.length()/1024);
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final File profilesPassiveFile = new File(queuesRoot, DBFILE_PASSIVE_CRAWL_PROFILES);
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if (!profilesPassiveFile.exists()) {
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// migrate old file
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final File oldFile = new File(new File(queuesRoot.getParentFile().getParentFile().getParentFile(), "PLASMADB"), "crawlProfilesPassive1.db");
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if (oldFile.exists()) oldFile.renameTo(profilesPassiveFile);
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}
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try {
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this.profilesPassiveCrawls = new CrawlProfile(profilesPassiveFile);
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} catch (IOException e) {
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profilesPassiveFile.delete();
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try {
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this.profilesPassiveCrawls = new CrawlProfile(profilesPassiveFile);
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} catch (IOException e1) {
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e1.printStackTrace();
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this.profilesPassiveCrawls = null;
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}
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}
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log.logConfig("Loaded passive crawl profiles from file " + profilesPassiveFile.getName() +
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", " + this.profilesPassiveCrawls.size() + " entries" +
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", " + profilesPassiveFile.length()/1024);
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// init queues
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final File preStackFile = new File(queuesRoot, "urlNoticePreStack");
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if (!preStackFile.exists()) {
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// migrate old file
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final File oldFile = new File(new File(queuesRoot.getParentFile().getParentFile().getParentFile(), "PLASMADB"), "switchboardQueue.stack");
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if (oldFile.exists()) oldFile.renameTo(preStackFile);
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}
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this.queuePreStack = new IndexingStack(this, preStackFile, this.profilesActiveCrawls);
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// create or init seed cache
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final File networkRoot = new File(this.primaryRoot, "NETWORK");
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networkRoot.mkdirs();
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final File mySeedFile = new File(networkRoot, yacySeedDB.DBFILE_OWN_SEED);
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final File oldSeedFile = new File(new File(indexPrimaryRoot.getParentFile(), "YACYDB"), "mySeed.txt");
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if (oldSeedFile.exists()) oldSeedFile.renameTo(mySeedFile);
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seedDB = new yacySeedDB(
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new File(networkRoot, "seed.new.heap"),
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new File(networkRoot, "seed.old.heap"),
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new File(networkRoot, "seed.pot.heap"),
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mySeedFile,
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redundancy,
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partitionExponent
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);
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// create or init news database
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newsPool = new yacyNewsPool(networkRoot);
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// deploy peer actions
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this.peerActions = new yacyPeerActions(seedDB, newsPool);
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}
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public void clearCache() {
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referenceURL.clearCache();
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}
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public void clear() {
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dhtCache.clear();
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collections.clear();
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try {
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referenceURL.clear();
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} catch (final IOException e) {
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e.printStackTrace();
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}
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queuePreStack.clear();
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}
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private void initActiveCrawlProfiles() {
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this.defaultProxyProfile = null;
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this.defaultRemoteProfile = null;
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this.defaultTextSnippetLocalProfile = null;
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this.defaultTextSnippetGlobalProfile = null;
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this.defaultMediaSnippetLocalProfile = null;
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this.defaultMediaSnippetGlobalProfile = null;
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final Iterator<CrawlProfile.entry> i = this.profilesActiveCrawls.profiles(true);
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CrawlProfile.entry profile;
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String name;
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try {
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while (i.hasNext()) {
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profile = i.next();
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name = profile.name();
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if (name.equals(CRAWL_PROFILE_PROXY)) this.defaultProxyProfile = profile;
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if (name.equals(CRAWL_PROFILE_REMOTE)) this.defaultRemoteProfile = profile;
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if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT)) this.defaultTextSnippetLocalProfile = profile;
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if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT)) this.defaultTextSnippetGlobalProfile = profile;
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if (name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA)) this.defaultMediaSnippetLocalProfile = profile;
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if (name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)) this.defaultMediaSnippetGlobalProfile = profile;
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}
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} catch (final Exception e) {
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this.profilesActiveCrawls.clear();
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this.defaultProxyProfile = null;
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this.defaultRemoteProfile = null;
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this.defaultTextSnippetLocalProfile = null;
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this.defaultTextSnippetGlobalProfile = null;
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this.defaultMediaSnippetLocalProfile = null;
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this.defaultMediaSnippetGlobalProfile = null;
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}
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if (this.defaultProxyProfile == null) {
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// generate new default entry for proxy crawling
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this.defaultProxyProfile = this.profilesActiveCrawls.newEntry("proxy", null, CrawlProfile.KEYWORDS_PROXY, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER,
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0 /*Integer.parseInt(getConfig(PROXY_PREFETCH_DEPTH, "0"))*/,
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this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_PROXY_RECRAWL_CYCLE), -1, -1, false,
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true /*getConfigBool(PROXY_INDEXING_LOCAL_TEXT, true)*/,
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true /*getConfigBool(PROXY_INDEXING_LOCAL_MEDIA, true)*/,
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true, true,
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false /*getConfigBool(PROXY_INDEXING_REMOTE, false)*/, true, true, true);
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}
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if (this.defaultRemoteProfile == null) {
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// generate new default entry for remote crawling
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defaultRemoteProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_REMOTE, null, CrawlProfile.KEYWORDS_REMOTE, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
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-1, -1, -1, true, true, true, false, true, false, true, true, false);
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}
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if (this.defaultTextSnippetLocalProfile == null) {
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// generate new default entry for snippet fetch and optional crawling
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defaultTextSnippetLocalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
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this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT_RECRAWL_CYCLE), -1, -1, true, false, false, false, false, false, true, true, false);
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}
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if (this.defaultTextSnippetGlobalProfile == null) {
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// generate new default entry for snippet fetch and optional crawling
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defaultTextSnippetGlobalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
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this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT_RECRAWL_CYCLE), -1, -1, true, true, true, true, true, false, true, true, false);
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}
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if (this.defaultMediaSnippetLocalProfile == null) {
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// generate new default entry for snippet fetch and optional crawling
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defaultMediaSnippetLocalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
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this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA_RECRAWL_CYCLE), -1, -1, true, false, false, false, false, false, true, true, false);
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}
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if (this.defaultMediaSnippetGlobalProfile == null) {
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// generate new default entry for snippet fetch and optional crawling
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defaultMediaSnippetGlobalProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
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this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA_RECRAWL_CYCLE), -1, -1, true, false, true, true, true, false, true, true, false);
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}
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}
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private void resetProfiles() {
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final File pdb = new File(this.queuesRoot, DBFILE_ACTIVE_CRAWL_PROFILES);
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if (pdb.exists()) pdb.delete();
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try {
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profilesActiveCrawls = new CrawlProfile(pdb);
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} catch (IOException e) {
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e.printStackTrace();
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}
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initActiveCrawlProfiles();
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}
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public boolean cleanProfiles() throws InterruptedException {
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if (queuePreStack.size() > 0) return false;
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final Iterator<CrawlProfile.entry> iter = profilesActiveCrawls.profiles(true);
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CrawlProfile.entry entry;
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boolean hasDoneSomething = false;
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try {
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while (iter.hasNext()) {
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// check for interruption
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if (Thread.currentThread().isInterrupted()) throw new InterruptedException("Shutdown in progress");
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// getting next profile
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entry = iter.next();
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if (!((entry.name().equals(CRAWL_PROFILE_PROXY)) ||
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(entry.name().equals(CRAWL_PROFILE_REMOTE)) ||
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(entry.name().equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT)) ||
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(entry.name().equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT)) ||
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(entry.name().equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA)) ||
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(entry.name().equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)))) {
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profilesPassiveCrawls.newEntry(entry.map());
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iter.remove();
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hasDoneSomething = true;
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}
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}
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} catch (final kelondroException e) {
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resetProfiles();
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hasDoneSomething = true;
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}
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return hasDoneSomething;
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}
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public File getLocation(final boolean primary) {
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return (primary) ? this.primaryRoot : this.secondaryRoot;
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}
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public void putURL(final indexURLReference entry) throws IOException {
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this.referenceURL.store(entry);
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}
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public indexURLReference getURL(final String urlHash, final indexRWIEntry searchedWord, final long ranking) {
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return this.referenceURL.load(urlHash, searchedWord, ranking);
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}
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public boolean removeURL(final String urlHash) {
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return this.referenceURL.remove(urlHash);
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}
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public boolean existsURL(final String urlHash) {
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return this.referenceURL.exists(urlHash);
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}
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public int countURL() {
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return this.referenceURL.size();
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}
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public Export exportURL(final File f, final String filter, final int format, final boolean dom) {
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return this.referenceURL.export(f, filter, format, dom);
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}
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public Export exportURL() {
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return this.referenceURL.export();
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}
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|
|
public CloneableIterator<indexURLReference> entriesURL(final boolean up, final String firstHash) throws IOException {
|
|
return this.referenceURL.entries(up, firstHash);
|
|
}
|
|
|
|
public Iterator<indexRepositoryReference.hostStat> statistics(int count) throws IOException {
|
|
return this.referenceURL.statistics(count);
|
|
}
|
|
|
|
public int deleteDomain(String urlfragment) throws IOException {
|
|
return this.referenceURL.deleteDomain(urlfragment);
|
|
}
|
|
|
|
public indexRepositoryReference.BlacklistCleaner getURLCleaner(final indexReferenceBlacklist blacklist) {
|
|
return this.referenceURL.getBlacklistCleaner(blacklist); // thread is not already started after this is called!
|
|
}
|
|
|
|
public int getURLwriteCacheSize() {
|
|
return this.referenceURL.writeCacheSize();
|
|
}
|
|
|
|
public int minMem() {
|
|
return 1024*1024 /* indexing overhead */ + dhtCache.minMem() + collections.minMem();
|
|
}
|
|
|
|
public int maxURLinDHTCache() {
|
|
return dhtCache.maxURLinCache();
|
|
}
|
|
|
|
public long minAgeOfDHTCache() {
|
|
return dhtCache.minAgeOfCache();
|
|
}
|
|
|
|
public long maxAgeOfDHTCache() {
|
|
return dhtCache.maxAgeOfCache();
|
|
}
|
|
|
|
public int dhtCacheSize() {
|
|
return dhtCache.size();
|
|
}
|
|
|
|
public long dhtCacheSizeBytes() {
|
|
// calculate the real size in bytes of DHT-In/Out-Cache
|
|
long cacheBytes = 0;
|
|
final long entryBytes = indexRWIRowEntry.urlEntryRow.objectsize;
|
|
final indexRAMRI cache = (dhtCache);
|
|
synchronized (cache) {
|
|
final Iterator<indexContainer> it = cache.wordContainers(null, false);
|
|
while (it.hasNext()) cacheBytes += it.next().size() * entryBytes;
|
|
}
|
|
return cacheBytes;
|
|
}
|
|
|
|
public void setMaxWordCount(final int maxWords) {
|
|
dhtCache.setMaxWordCount(maxWords);
|
|
}
|
|
|
|
public void dhtFlushControl(final indexRAMRI theCache) {
|
|
// check for forced flush
|
|
int cs = cacheSize();
|
|
if (cs > 0) {
|
|
// flush elements that are too big. This flushing depends on the fact that the flush rule
|
|
// selects the biggest elements first for flushing. If it does not for any reason, the following
|
|
// loop would not terminate.
|
|
serverProfiling.update("wordcache", Long.valueOf(cs));
|
|
// To ensure termination an additional counter is used
|
|
int l = 0;
|
|
while (theCache.size() > 0 && (l++ < 100) && (theCache.maxURLinCache() > wCacheMaxChunk)) {
|
|
flushCacheOne(theCache);
|
|
}
|
|
// next flush more entries if the size exceeds the maximum size of the cache
|
|
while (theCache.size() > 0 &&
|
|
((theCache.size() > theCache.getMaxWordCount()) ||
|
|
(MemoryControl.available() < collections.minMem()))) {
|
|
flushCacheOne(theCache);
|
|
}
|
|
if (cacheSize() != cs) serverProfiling.update("wordcache", Long.valueOf(cacheSize()));
|
|
}
|
|
}
|
|
|
|
public static indexContainer emptyContainer(final String wordHash, final int elementCount) {
|
|
return new indexContainer(wordHash, indexRWIRowEntry.urlEntryRow, elementCount);
|
|
}
|
|
|
|
public void addEntry(final String wordHash, final indexRWIRowEntry entry, final long updateTime) {
|
|
// add the entry
|
|
dhtCache.addEntry(wordHash, entry, updateTime, true);
|
|
dhtFlushControl(this.dhtCache);
|
|
}
|
|
|
|
public void addEntries(final indexContainer entries) {
|
|
assert (entries.row().objectsize == indexRWIRowEntry.urlEntryRow.objectsize);
|
|
|
|
// add the entry
|
|
dhtCache.addEntries(entries);
|
|
dhtFlushControl(this.dhtCache);
|
|
}
|
|
|
|
public void flushCacheFor(int time) {
|
|
flushCacheUntil(System.currentTimeMillis() + time);
|
|
}
|
|
|
|
private synchronized void flushCacheUntil(long timeout) {
|
|
while (System.currentTimeMillis() < timeout && dhtCache.size() > 0) {
|
|
flushCacheOne(dhtCache);
|
|
}
|
|
}
|
|
|
|
private synchronized void flushCacheOne(final indexRAMRI ram) {
|
|
if (ram.size() > 0) collections.addEntries(flushContainer(ram));
|
|
}
|
|
|
|
private indexContainer flushContainer(final indexRAMRI ram) {
|
|
String wordHash;
|
|
indexContainer c;
|
|
wordHash = ram.maxScoreWordHash();
|
|
c = ram.getContainer(wordHash, null);
|
|
if ((c != null) && (c.size() > wCacheMaxChunk)) {
|
|
return ram.deleteContainer(wordHash);
|
|
} else {
|
|
return ram.deleteContainer(ram.bestFlushWordHash());
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* this is called by the switchboard to put in a new page into the index
|
|
* use all the words in one condenser object to simultanous create index entries
|
|
*
|
|
* @param url
|
|
* @param urlModified
|
|
* @param document
|
|
* @param condenser
|
|
* @param language
|
|
* @param doctype
|
|
* @param outlinksSame
|
|
* @param outlinksOther
|
|
* @return
|
|
*/
|
|
public int addPageIndex(final yacyURL url, final Date urlModified, final plasmaParserDocument document, final plasmaCondenser condenser, final String language, final char doctype, final int outlinksSame, final int outlinksOther) {
|
|
int wordCount = 0;
|
|
final int urlLength = url.toNormalform(true, true).length();
|
|
final int urlComps = htmlFilterContentScraper.urlComps(url.toString()).length;
|
|
|
|
// iterate over all words of context text
|
|
final Iterator<Map.Entry<String, indexWord>> i = condenser.words().entrySet().iterator();
|
|
Map.Entry<String, indexWord> wentry;
|
|
String word;
|
|
indexRWIRowEntry ientry;
|
|
indexWord wprop;
|
|
while (i.hasNext()) {
|
|
wentry = i.next();
|
|
word = wentry.getKey();
|
|
wprop = wentry.getValue();
|
|
assert (wprop.flags != null);
|
|
ientry = new indexRWIRowEntry(url.hash(),
|
|
urlLength, urlComps, (document == null) ? urlLength : document.dc_title().length(),
|
|
wprop.count,
|
|
condenser.RESULT_NUMB_WORDS,
|
|
condenser.RESULT_NUMB_SENTENCES,
|
|
wprop.posInText,
|
|
wprop.posInPhrase,
|
|
wprop.numOfPhrase,
|
|
urlModified.getTime(),
|
|
System.currentTimeMillis(),
|
|
language,
|
|
doctype,
|
|
outlinksSame, outlinksOther,
|
|
wprop.flags);
|
|
addEntry(indexWord.word2hash(word), ientry, System.currentTimeMillis());
|
|
wordCount++;
|
|
}
|
|
|
|
return wordCount;
|
|
}
|
|
|
|
public boolean hasContainer(final String wordHash) {
|
|
if (dhtCache.hasContainer(wordHash)) return true;
|
|
if (collections.hasContainer(wordHash)) return true;
|
|
return false;
|
|
}
|
|
|
|
public indexContainer getContainer(final String wordHash, final Set<String> urlselection) {
|
|
if ((wordHash == null) || (wordHash.length() != yacySeedDB.commonHashLength)) {
|
|
// wrong input
|
|
return null;
|
|
}
|
|
|
|
// get from cache
|
|
indexContainer container;
|
|
container = dhtCache.getContainer(wordHash, urlselection);
|
|
|
|
// get from collection index
|
|
if (container == null) {
|
|
container = collections.getContainer(wordHash, urlselection);
|
|
} else {
|
|
container.addAllUnique(collections.getContainer(wordHash, urlselection));
|
|
}
|
|
|
|
if (container == null) return null;
|
|
|
|
// check doubles
|
|
final int beforeDouble = container.size();
|
|
final ArrayList<RowCollection> d = container.removeDoubles();
|
|
RowCollection set;
|
|
for (int i = 0; i < d.size(); i++) {
|
|
// for each element in the double-set, take that one that is the most recent one
|
|
set = d.get(i);
|
|
indexRWIRowEntry e, elm = null;
|
|
long lm = 0;
|
|
for (int j = 0; j < set.size(); j++) {
|
|
e = new indexRWIRowEntry(set.get(j, true));
|
|
if ((elm == null) || (e.lastModified() > lm)) {
|
|
elm = e;
|
|
lm = e.lastModified();
|
|
}
|
|
}
|
|
if(elm != null) {
|
|
container.addUnique(elm.toKelondroEntry());
|
|
}
|
|
}
|
|
if (container.size() < beforeDouble) System.out.println("*** DEBUG DOUBLECHECK - removed " + (beforeDouble - container.size()) + " index entries from word container " + container.getWordHash());
|
|
|
|
return container;
|
|
}
|
|
|
|
/**
|
|
* return map of wordhash:indexContainer
|
|
*
|
|
* @param wordHashes
|
|
* @param urlselection
|
|
* @param deleteIfEmpty
|
|
* @param interruptIfEmpty
|
|
* @return
|
|
*/
|
|
public HashMap<String, indexContainer> getContainers(final Set<String> wordHashes, final Set<String> urlselection, final boolean interruptIfEmpty) {
|
|
// retrieve entities that belong to the hashes
|
|
final HashMap<String, indexContainer> containers = new HashMap<String, indexContainer>(wordHashes.size());
|
|
String singleHash;
|
|
indexContainer singleContainer;
|
|
final Iterator<String> i = wordHashes.iterator();
|
|
while (i.hasNext()) {
|
|
|
|
// get next word hash:
|
|
singleHash = i.next();
|
|
|
|
// retrieve index
|
|
singleContainer = getContainer(singleHash, urlselection);
|
|
|
|
// check result
|
|
if (((singleContainer == null) || (singleContainer.size() == 0)) && (interruptIfEmpty)) return new HashMap<String, indexContainer>(0);
|
|
|
|
containers.put(singleHash, singleContainer);
|
|
}
|
|
return containers;
|
|
}
|
|
|
|
@SuppressWarnings("unchecked")
|
|
public HashMap<String, indexContainer>[] localSearchContainers(final plasmaSearchQuery query, final Set<String> urlselection) {
|
|
// search for the set of hashes and return a map of of wordhash:indexContainer containing the seach result
|
|
|
|
// retrieve entities that belong to the hashes
|
|
HashMap<String, indexContainer> inclusionContainers = (query.queryHashes.size() == 0) ? new HashMap<String, indexContainer>(0) : getContainers(
|
|
query.queryHashes,
|
|
urlselection,
|
|
true);
|
|
if ((inclusionContainers.size() != 0) && (inclusionContainers.size() < query.queryHashes.size())) inclusionContainers = new HashMap<String, indexContainer>(0); // prevent that only a subset is returned
|
|
final HashMap<String, indexContainer> exclusionContainers = (inclusionContainers.size() == 0) ? new HashMap<String, indexContainer>(0) : getContainers(
|
|
query.excludeHashes,
|
|
urlselection,
|
|
true);
|
|
return new HashMap[]{inclusionContainers, exclusionContainers};
|
|
}
|
|
|
|
public int size() {
|
|
return java.lang.Math.max(collections.size(), dhtCache.size());
|
|
}
|
|
|
|
public int collectionsSize() {
|
|
return collections.size();
|
|
}
|
|
|
|
public int cacheSize() {
|
|
return dhtCache.size();
|
|
}
|
|
|
|
public void close() {
|
|
dhtCache.close();
|
|
collections.close();
|
|
referenceURL.close();
|
|
seedDB.close();
|
|
newsPool.close();
|
|
profilesActiveCrawls.close();
|
|
queuePreStack.close();
|
|
peerActions.close();
|
|
}
|
|
|
|
public indexContainer deleteContainer(final String wordHash) {
|
|
final indexContainer c = new indexContainer(
|
|
wordHash,
|
|
indexRWIRowEntry.urlEntryRow,
|
|
dhtCache.sizeContainer(wordHash));
|
|
c.addAllUnique(dhtCache.deleteContainer(wordHash));
|
|
c.addAllUnique(collections.deleteContainer(wordHash));
|
|
return c;
|
|
}
|
|
|
|
public boolean removeEntry(final String wordHash, final String urlHash) {
|
|
boolean removed = false;
|
|
removed = removed | (dhtCache.removeEntry(wordHash, urlHash));
|
|
removed = removed | (collections.removeEntry(wordHash, urlHash));
|
|
return removed;
|
|
}
|
|
|
|
public int removeEntryMultiple(final Set<String> wordHashes, final String urlHash) {
|
|
// remove the same url hashes for multiple words
|
|
// this is mainly used when correcting a index after a search
|
|
final Iterator<String> i = wordHashes.iterator();
|
|
int count = 0;
|
|
while (i.hasNext()) {
|
|
if (removeEntry(i.next(), urlHash)) count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
public int removeEntries(final String wordHash, final Set<String> urlHashes) {
|
|
int removed = 0;
|
|
removed += dhtCache.removeEntries(wordHash, urlHashes);
|
|
removed += collections.removeEntries(wordHash, urlHashes);
|
|
return removed;
|
|
}
|
|
|
|
public String removeEntriesExpl(final String wordHash, final Set<String> urlHashes) {
|
|
String removed = "";
|
|
removed += dhtCache.removeEntries(wordHash, urlHashes) + ", ";
|
|
removed += collections.removeEntries(wordHash, urlHashes);
|
|
return removed;
|
|
}
|
|
|
|
public void removeEntriesMultiple(final Set<String> wordHashes, final Set<String> urlHashes) {
|
|
// remove the same url hashes for multiple words
|
|
// this is mainly used when correcting a index after a search
|
|
final Iterator<String> i = wordHashes.iterator();
|
|
while (i.hasNext()) {
|
|
removeEntries(i.next(), urlHashes);
|
|
}
|
|
}
|
|
|
|
public int removeWordReferences(final Set<String> words, final String urlhash) {
|
|
// sequentially delete all word references
|
|
// returns number of deletions
|
|
final Iterator<String> iter = words.iterator();
|
|
int count = 0;
|
|
while (iter.hasNext()) {
|
|
// delete the URL reference in this word index
|
|
if (removeEntry(indexWord.word2hash(iter.next()), urlhash)) count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
public synchronized TreeSet<indexContainer> indexContainerSet(final String startHash, final boolean ram, final boolean rot, int count) {
|
|
// creates a set of indexContainers
|
|
// this does not use the dhtInCache
|
|
final kelondroOrder<indexContainer> containerOrder = new indexContainerOrder(indexOrder.clone());
|
|
containerOrder.rotate(emptyContainer(startHash, 0));
|
|
final TreeSet<indexContainer> containers = new TreeSet<indexContainer>(containerOrder);
|
|
final Iterator<indexContainer> i = wordContainers(startHash, ram, rot);
|
|
if (ram) count = Math.min(dhtCache.size(), count);
|
|
indexContainer container;
|
|
// this loop does not terminate using the i.hasNex() predicate when rot == true
|
|
// because then the underlying iterator is a rotating iterator without termination
|
|
// in this case a termination must be ensured with a counter
|
|
// It must also be ensured that the counter is in/decreased every loop
|
|
while ((count > 0) && (i.hasNext())) {
|
|
container = i.next();
|
|
if ((container != null) && (container.size() > 0)) {
|
|
containers.add(container);
|
|
}
|
|
count--; // decrease counter even if the container was null or empty to ensure termination
|
|
}
|
|
return containers; // this may return less containers as demanded
|
|
}
|
|
|
|
public indexURLReference storeDocument(final IndexingStack.QueueEntry entry, final plasmaParserDocument document, final plasmaCondenser condenser) throws IOException {
|
|
final long startTime = System.currentTimeMillis();
|
|
|
|
// CREATE INDEX
|
|
|
|
// load some document metadata
|
|
final String dc_title = document.dc_title();
|
|
final yacyURL referrerURL = entry.referrerURL();
|
|
final Date docDate = entry.getModificationDate();
|
|
|
|
// do a identification of the language
|
|
String language = condenser.language(); // this is a statistical analysation of the content: will be compared with other attributes
|
|
String bymetadata = document.languageByMetadata(); // the languageByMetadata may return null if there was no declaration
|
|
if (language == null) {
|
|
// no statistics available, we take either the metadata (if given) or the TLD
|
|
language = (bymetadata == null) ? entry.url().language() : bymetadata;
|
|
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " FAILED, taking " + ((bymetadata == null) ? "TLD" : "metadata") + ": " + language);
|
|
} else {
|
|
if (bymetadata == null) {
|
|
// two possible results: compare and report conflicts
|
|
if (language.equals(entry.url().language()))
|
|
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - TLD IDENTICAL: " + language);
|
|
else {
|
|
String error = "*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: " + language + " (the language given by the TLD is " + entry.url().language() + ")";
|
|
// see if we have a hint in the url that the statistic was right
|
|
String u = entry.url().toNormalform(true, false).toLowerCase();
|
|
if (!u.contains("/" + language + "/") && !u.contains("/" + iso639.country(language).toLowerCase() + "/")) {
|
|
// no confirmation using the url, use the TLD
|
|
language = entry.url().language();
|
|
System.out.println(error + ", corrected using the TLD");
|
|
} else {
|
|
// this is a strong hint that the statistics was in fact correct
|
|
System.out.println(error + ", but the url proves that the statistic is correct");
|
|
}
|
|
}
|
|
} else {
|
|
// here we have three results: we can do a voting
|
|
if (language.equals(bymetadata)) {
|
|
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - METADATA IDENTICAL: " + language);
|
|
} else if (language.equals(entry.url().language())) {
|
|
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - TLD IS IDENTICAL: " + language);
|
|
} else if (bymetadata.equals(entry.url().language())) {
|
|
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: " + language + " BUT METADATA AND TLD ARE IDENTICAL: " + bymetadata + ")");
|
|
language = bymetadata;
|
|
} else {
|
|
System.out.println("*** DEBUG LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: ALL DIFFERENT! statistic: " + language + ", metadata: " + bymetadata + ", TLD: + " + entry.url().language() + ". taking metadata.");
|
|
language = bymetadata;
|
|
}
|
|
}
|
|
}
|
|
|
|
// create a new loaded URL db entry
|
|
final long ldate = System.currentTimeMillis();
|
|
final indexURLReference newEntry = new indexURLReference(
|
|
entry.url(), // URL
|
|
dc_title, // document description
|
|
document.dc_creator(), // author
|
|
document.dc_subject(' '), // tags
|
|
"", // ETag
|
|
docDate, // modification date
|
|
new Date(), // loaded date
|
|
new Date(ldate + Math.max(0, ldate - docDate.getTime()) / 2), // freshdate, computed with Proxy-TTL formula
|
|
(referrerURL == null) ? null : referrerURL.hash(), // referer hash
|
|
new byte[0], // md5
|
|
(int) entry.size(), // size
|
|
condenser.RESULT_NUMB_WORDS, // word count
|
|
httpdProxyCacheEntry.docType(document.dc_format()), // doctype
|
|
condenser.RESULT_FLAGS, // flags
|
|
language, // language
|
|
document.inboundLinks(), // inbound links
|
|
document.outboundLinks(), // outbound links
|
|
document.getAudiolinks().size(), // laudio
|
|
document.getImages().size(), // limage
|
|
document.getVideolinks().size(), // lvideo
|
|
document.getApplinks().size() // lapp
|
|
);
|
|
|
|
// STORE URL TO LOADED-URL-DB
|
|
putURL(newEntry);
|
|
|
|
final long storageEndTime = System.currentTimeMillis();
|
|
|
|
// STORE PAGE INDEX INTO WORD INDEX DB
|
|
final int words = addPageIndex(
|
|
entry.url(), // document url
|
|
docDate, // document mod date
|
|
document, // document content
|
|
condenser, // document condenser
|
|
language, // document language
|
|
httpdProxyCacheEntry.docType(document.dc_format()), // document type
|
|
document.inboundLinks(), // inbound links
|
|
document.outboundLinks() // outbound links
|
|
);
|
|
|
|
final long indexingEndTime = System.currentTimeMillis();
|
|
|
|
if (log.isInfo()) {
|
|
// TODO: UTF-8 docDescription seems not to be displayed correctly because
|
|
// of string concatenation
|
|
log.logInfo("*Indexed " + words + " words in URL " + entry.url() +
|
|
" [" + entry.urlHash() + "]" +
|
|
"\n\tDescription: " + dc_title +
|
|
"\n\tMimeType: " + document.dc_format() + " | Charset: " + document.getCharset() + " | " +
|
|
"Size: " + document.getTextLength() + " bytes | " +
|
|
"Anchors: " + ((document.getAnchors() == null) ? 0 : document.getAnchors().size()) +
|
|
"\n\tLinkStorageTime: " + (storageEndTime - startTime) + " ms | " +
|
|
"indexStorageTime: " + (indexingEndTime - storageEndTime) + " ms");
|
|
RSSFeed.channels((entry.initiator().equals(seedDB.mySeed().hash)) ? RSSFeed.LOCALINDEXING : RSSFeed.REMOTEINDEXING).addMessage(new RSSMessage("Indexed web page", dc_title, entry.url().toNormalform(true, false)));
|
|
}
|
|
|
|
// finished
|
|
return newEntry;
|
|
}
|
|
|
|
public synchronized CloneableIterator<indexContainer> wordContainers(final String startHash, final boolean ram, final boolean rot) {
|
|
final CloneableIterator<indexContainer> i = wordContainers(startHash, ram);
|
|
if (rot) {
|
|
return new kelondroRotateIterator<indexContainer>(i, new String(Base64Order.zero(startHash.length())), dhtCache.size() + ((ram) ? 0 : collections.size()));
|
|
}
|
|
return i;
|
|
}
|
|
|
|
public synchronized CloneableIterator<indexContainer> wordContainers(final String startWordHash, final boolean ram) {
|
|
final kelondroOrder<indexContainer> containerOrder = new indexContainerOrder(indexOrder.clone());
|
|
containerOrder.rotate(emptyContainer(startWordHash, 0));
|
|
if (ram) {
|
|
return dhtCache.wordContainers(startWordHash, false);
|
|
}
|
|
return new kelondroMergeIterator<indexContainer>(
|
|
dhtCache.wordContainers(startWordHash, false),
|
|
collections.wordContainers(startWordHash, false),
|
|
containerOrder,
|
|
indexContainer.containerMergeMethod,
|
|
true);
|
|
}
|
|
|
|
|
|
// The Cleaner class was provided as "UrldbCleaner" by Hydrox
|
|
public synchronized ReferenceCleaner getReferenceCleaner(final String startHash) {
|
|
return new ReferenceCleaner(startHash);
|
|
}
|
|
|
|
public class ReferenceCleaner extends Thread {
|
|
|
|
private final String startHash;
|
|
private boolean run = true;
|
|
private boolean pause = false;
|
|
public int rwiCountAtStart = 0;
|
|
public String wordHashNow = "";
|
|
public String lastWordHash = "";
|
|
public int lastDeletionCounter = 0;
|
|
|
|
public ReferenceCleaner(final String startHash) {
|
|
this.startHash = startHash;
|
|
this.rwiCountAtStart = size();
|
|
}
|
|
|
|
public void run() {
|
|
serverLog.logInfo("INDEXCLEANER", "IndexCleaner-Thread started");
|
|
indexContainer container = null;
|
|
indexRWIRowEntry entry = null;
|
|
yacyURL url = null;
|
|
final HashSet<String> urlHashs = new HashSet<String>();
|
|
Iterator<indexContainer> indexContainerIterator = indexContainerSet(startHash, false, false, 100).iterator();
|
|
while (indexContainerIterator.hasNext() && run) {
|
|
waiter();
|
|
container = indexContainerIterator.next();
|
|
final Iterator<indexRWIRowEntry> containerIterator = container.entries();
|
|
wordHashNow = container.getWordHash();
|
|
while (containerIterator.hasNext() && run) {
|
|
waiter();
|
|
entry = containerIterator.next();
|
|
// System.out.println("Wordhash: "+wordHash+" UrlHash:
|
|
// "+entry.getUrlHash());
|
|
final indexURLReference ue = referenceURL.load(entry.urlHash(), entry, 0);
|
|
if (ue == null) {
|
|
urlHashs.add(entry.urlHash());
|
|
} else {
|
|
url = ue.comp().url();
|
|
if ((url == null) || (plasmaSwitchboard.urlBlacklist.isListed(indexReferenceBlacklist.BLACKLIST_CRAWLER, url) == true)) {
|
|
urlHashs.add(entry.urlHash());
|
|
}
|
|
}
|
|
}
|
|
if (urlHashs.size() > 0) {
|
|
final int removed = removeEntries(container.getWordHash(), urlHashs);
|
|
serverLog.logFine("INDEXCLEANER", container.getWordHash() + ": " + removed + " of " + container.size() + " URL-entries deleted");
|
|
lastWordHash = container.getWordHash();
|
|
lastDeletionCounter = urlHashs.size();
|
|
urlHashs.clear();
|
|
}
|
|
if (!containerIterator.hasNext()) {
|
|
// We may not be finished yet, try to get the next chunk of wordHashes
|
|
final TreeSet<indexContainer> containers = indexContainerSet(container.getWordHash(), false, false, 100);
|
|
indexContainerIterator = containers.iterator();
|
|
// Make sure we don't get the same wordhash twice, but don't skip a word
|
|
if ((indexContainerIterator.hasNext()) && (!container.getWordHash().equals(indexContainerIterator.next().getWordHash()))) {
|
|
indexContainerIterator = containers.iterator();
|
|
}
|
|
}
|
|
}
|
|
serverLog.logInfo("INDEXCLEANER", "IndexCleaner-Thread stopped");
|
|
}
|
|
|
|
public void abort() {
|
|
synchronized(this) {
|
|
run = false;
|
|
this.notifyAll();
|
|
}
|
|
}
|
|
|
|
public void pause() {
|
|
synchronized (this) {
|
|
if (!pause) {
|
|
pause = true;
|
|
serverLog.logInfo("INDEXCLEANER", "IndexCleaner-Thread paused");
|
|
}
|
|
}
|
|
}
|
|
|
|
public void endPause() {
|
|
synchronized (this) {
|
|
if (pause) {
|
|
pause = false;
|
|
this.notifyAll();
|
|
serverLog.logInfo("INDEXCLEANER", "IndexCleaner-Thread resumed");
|
|
}
|
|
}
|
|
}
|
|
|
|
public void waiter() {
|
|
synchronized (this) {
|
|
if (this.pause) {
|
|
try {
|
|
this.wait();
|
|
} catch (final InterruptedException e) {
|
|
this.run = false;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|