// Segment.java
// (C) 2005-2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 2005 on http://yacy.net; full redesign for segments 28.5.2009
//
// 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
package net.yacy.search.index;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.BlockingQueue;
import org.apache.solr.client.solrj.util.ClientUtils;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.SolrInputDocument;
import net.yacy.cora.document.ASCII;
import net.yacy.cora.document.MultiProtocolURI;
import net.yacy.cora.document.UTF8;
import net.yacy.cora.federate.solr.connector.AbstractSolrConnector;
import net.yacy.cora.federate.yacy.CacheStrategy;
import net.yacy.cora.order.Base64Order;
import net.yacy.cora.order.ByteOrder;
import net.yacy.cora.protocol.ResponseHeader;
import net.yacy.cora.storage.HandleSet;
import net.yacy.cora.util.LookAheadIterator;
import net.yacy.cora.util.SpaceExceededException;
import net.yacy.crawler.data.CrawlProfile;
import net.yacy.crawler.data.CrawlQueues;
import net.yacy.crawler.retrieval.Response;
import net.yacy.document.Condenser;
import net.yacy.document.Document;
import net.yacy.document.Parser;
import net.yacy.kelondro.data.citation.CitationReference;
import net.yacy.kelondro.data.citation.CitationReferenceFactory;
import net.yacy.kelondro.data.meta.DigestURI;
import net.yacy.kelondro.data.meta.URIMetadataRow;
import net.yacy.kelondro.data.word.Word;
import net.yacy.kelondro.data.word.WordReference;
import net.yacy.kelondro.data.word.WordReferenceFactory;
import net.yacy.kelondro.data.word.WordReferenceRow;
import net.yacy.kelondro.index.RowHandleSet;
import net.yacy.kelondro.logging.Log;
import net.yacy.kelondro.rwi.IndexCell;
import net.yacy.kelondro.rwi.ReferenceContainer;
import net.yacy.kelondro.rwi.ReferenceFactory;
import net.yacy.kelondro.util.Bitfield;
import net.yacy.kelondro.util.ByteBuffer;
import net.yacy.kelondro.util.ISO639;
import net.yacy.kelondro.util.MemoryControl;
import net.yacy.repository.LoaderDispatcher;
import net.yacy.search.Switchboard;
import net.yacy.search.SwitchboardConstants;
import net.yacy.search.query.SearchEvent;
import net.yacy.search.schema.CollectionConfiguration;
import net.yacy.search.schema.CollectionSchema;
import net.yacy.search.schema.WebgraphConfiguration;
public class Segment {
// catchall word
public final static String catchallString = "yacyall"; // a word that is always in all indexes; can be used for zero-word searches to find ALL documents
public final static byte[] catchallHash;
final static Word catchallWord = new Word(0, 0, 0);
static {
catchallHash = Word.word2hash(catchallString); // "KZzU-Vf6h5k-"
catchallWord.flags = new Bitfield(4);
for (int i = 0; i < catchallWord.flags.length(); i++) catchallWord.flags.set(i, true);
}
// environment constants
public static final long wCacheMaxAge = 1000 * 60 * 30; // milliseconds; 30 minutes
public static final int wCacheMaxChunk = 800; // maximum number of references for each urlhash
public static final int lowcachedivisor = 900;
public static final long targetFileSize = 64 * 1024 * 1024; // 256 MB
public static final int writeBufferSize = 4 * 1024 * 1024;
public static final String UrlDbName = "text.urlmd";
public static final String termIndexName = "text.index";
public static final String citationIndexName = "citation.index";
// the reference factory
public static final ReferenceFactory<WordReference> wordReferenceFactory = new WordReferenceFactory();
public static final ReferenceFactory<CitationReference> citationReferenceFactory = new CitationReferenceFactory();
public static final ByteOrder wordOrder = Base64Order.enhancedCoder;
private final Log log;
private final File segmentPath;
protected final Fulltext fulltext;
protected IndexCell<WordReference> termIndex;
protected IndexCell<CitationReference> urlCitationIndex;
protected boolean writeWebgraph;
/**
* create a new Segment
* @param log
* @param segmentPath that should be the path ponting to the directory "SEGMENT"
* @param collectionSchema
*/
public Segment(final Log log, final File segmentPath,
final CollectionConfiguration collectionConfiguration, final WebgraphConfiguration webgraphConfiguration) {
log.logInfo("Initializing Segment '" + segmentPath + ".");
this.log = log;
this.segmentPath = segmentPath;
// create LURL-db
this.fulltext = new Fulltext(segmentPath, collectionConfiguration, webgraphConfiguration);
this.termIndex = null;
this.urlCitationIndex = null;
this.writeWebgraph = false;
}
public void writeWebgraph(boolean check) {
this.writeWebgraph = check;
}
public boolean connectedRWI() {
return this.termIndex != null;
}
public void connectRWI(final int entityCacheMaxSize, final long maxFileSize) throws IOException {
if (this.termIndex != null) return;
this.termIndex = new IndexCell<WordReference>(
new File(this.segmentPath, "default"),
termIndexName,
wordReferenceFactory,
wordOrder,
Word.commonHashLength,
entityCacheMaxSize,
targetFileSize,
maxFileSize,
writeBufferSize);
}
public void disconnectRWI() {
if (this.termIndex == null) return;
this.termIndex.close();
this.termIndex = null;
}
public boolean connectedCitation() {
return this.urlCitationIndex != null;
}
public void connectCitation(final int entityCacheMaxSize, final long maxFileSize) throws IOException {
if (this.urlCitationIndex != null) return;
this.urlCitationIndex = new IndexCell<CitationReference>(
new File(this.segmentPath, "default"),
citationIndexName,
citationReferenceFactory,
wordOrder,
Word.commonHashLength,
entityCacheMaxSize,
targetFileSize,
maxFileSize,
writeBufferSize);
}
public void disconnectCitation() {
if (this.urlCitationIndex == null) return;
this.urlCitationIndex.close();
this.urlCitationIndex = null;
}
public void connectUrlDb(final boolean useTailCache, final boolean exceed134217727) {
this.fulltext.connectUrlDb(UrlDbName, useTailCache, exceed134217727);
}
public Fulltext fulltext() {
return this.fulltext;
}
public IndexCell<WordReference> termIndex() {
return this.termIndex;
}
public IndexCell<CitationReference> urlCitation() {
return this.urlCitationIndex;
}
/**
* compute the click level using the citation reference database
* @param citations the citation database
* @param searchhash the hash of the url to be checked
* @return the clickdepth level or 999 if the root url cannot be found or a recursion limit is reached
* @throws IOException
*/
public int getClickDepth(final DigestURI url) throws IOException {
final byte[] searchhash = url.hash();
RowHandleSet rootCandidates = url.getPossibleRootHashes();
RowHandleSet ignore = new RowHandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, 100); // a set of urlhashes to be ignored. This is generated from all hashes that are seen during recursion to prevent enless loops
RowHandleSet levelhashes = new RowHandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, 1); // all hashes of a clickdepth. The first call contains the target hash only and therefore just one entry
try {levelhashes.put(searchhash);} catch (SpaceExceededException e) {throw new IOException(e);}
int leveldepth = 0; // the recursion depth and therefore the result depth-1. Shall be 0 for the first call
final byte[] hosthash = new byte[6]; // the host of the url to be checked
System.arraycopy(searchhash, 6, hosthash, 0, 6);
long timeout = System.currentTimeMillis() + 10000;
for (int maxdepth = 0; maxdepth < 10 && System.currentTimeMillis() < timeout; maxdepth++) {
RowHandleSet checknext = new RowHandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, 100);
// loop over all hashes at this clickdepth; the first call to this loop should contain only one hash and a leveldepth = 0
checkloop: for (byte[] urlhash: levelhashes) {
// get all the citations for this url and iterate
ReferenceContainer<CitationReference> references = this.urlCitationIndex.get(urlhash, null);
if (references == null || references.size() == 0) continue checkloop; // don't know
Iterator<CitationReference> i = references.entries();
nextloop: while (i.hasNext()) {
CitationReference ref = i.next();
if (ref == null) continue nextloop;
byte[] u = ref.urlhash();
// check ignore
if (ignore.has(u)) continue nextloop;
// check if this is from the same host
if (!ByteBuffer.equals(u, 6, hosthash, 0, 6)) continue nextloop;
// check if the url is a root url
if (rootCandidates.has(u)) {
return leveldepth + 1;
}
// step to next depth level
try {checknext.put(u);} catch (SpaceExceededException e) {}
try {ignore.put(u);} catch (SpaceExceededException e) {}
}
}
leveldepth++;
levelhashes = checknext;
}
return 999;
}
public long URLCount() {
return this.fulltext.collectionSize();
}
public long RWICount() {
if (this.termIndex == null) return 0;
return this.termIndex.sizesMax();
}
public int RWIBufferCount() {
if (this.termIndex == null) return 0;
return this.termIndex.getBufferSize();
}
/**
* get a guess about the word count. This is only a guess because it uses the term index if present and this index may be
* influenced by index transmission processes in its statistic word distribution. However, it can be a hint for heuristics
* which use the word count. Please do NOT use this if the termIndex is not present because it otherwise uses the solr index
* which makes it painfull slow.
* @param word
* @return the number of references for this word.
*/
public int getWordCountGuess(String word) {
if (word == null || word.indexOf(':') >= 0 || word.indexOf(' ') >= 0 || word.indexOf('/') >= 0) return 0;
if (this.termIndex != null) {
int count = this.termIndex.count(Word.word2hash(word));
if (count > 0) return count;
}
try {
return (int) this.fulltext.getDefaultConnector().getQueryCount(CollectionSchema.text_t.getSolrFieldName() + ':' + word);
} catch (Throwable e) {
Log.logException(e);
return 0;
}
}
public boolean exists(final String urlhash) {
return this.fulltext.exists(urlhash);
}
/**
* discover all urls that start with a given url stub
* @param stub
* @return an iterator for all matching urls
*/
public Iterator<DigestURI> urlSelector(final MultiProtocolURI stub, final long maxtime, final int maxcount) {
final BlockingQueue<SolrDocument> docQueue;
final String urlstub;
if (stub == null) {
docQueue = this.fulltext.getDefaultConnector().concurrentQuery("*:*", 0, Integer.MAX_VALUE, maxtime, maxcount, CollectionSchema.id.getSolrFieldName(), CollectionSchema.sku.getSolrFieldName());
urlstub = null;
} else {
final String host = stub.getHost();
String hh = DigestURI.hosthash(host);
docQueue = this.fulltext.getDefaultConnector().concurrentQuery(CollectionSchema.host_id_s + ":\"" + hh + "\"", 0, Integer.MAX_VALUE, maxtime, maxcount, CollectionSchema.id.getSolrFieldName(), CollectionSchema.sku.getSolrFieldName());
urlstub = stub.toNormalform(true);
}
// now filter the stub from the iterated urls
return new LookAheadIterator<DigestURI>() {
@Override
protected DigestURI next0() {
while (true) {
SolrDocument doc;
try {
doc = docQueue.take();
} catch (InterruptedException e) {
Log.logException(e);
return null;
}
if (doc == null || doc == AbstractSolrConnector.POISON_DOCUMENT) return null;
String u = (String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName());
String id = (String) doc.getFieldValue(CollectionSchema.id.getSolrFieldName());
DigestURI url;
try {
url = new DigestURI(u, ASCII.getBytes(id));
} catch (MalformedURLException e) {
continue;
}
if (urlstub == null || u.startsWith(urlstub)) return url;
}
}
};
}
public void clear() {
try {
if (this.termIndex != null) this.termIndex.clear();
if (this.fulltext != null) this.fulltext.clearURLIndex();
if (this.fulltext != null) this.fulltext.clearLocalSolr();
if (this.fulltext != null) this.fulltext.clearRemoteSolr();
if (this.urlCitationIndex != null) this.urlCitationIndex.clear();
} catch (final IOException e) {
Log.logException(e);
}
}
public void clearCache() {
if (this.urlCitationIndex != null) this.urlCitationIndex.clearCache();
if (this.termIndex != null) this.termIndex.clearCache();
this.fulltext.clearCache();
}
public File getLocation() {
return this.segmentPath;
}
private int addCitationIndex(final DigestURI url, final Date urlModified, final Map<DigestURI, Properties> anchors) {
if (anchors == null) return 0;
int refCount = 0;
// iterate over all outgoing links, this will create a context for those links
final byte[] urlhash = url.hash();
final long urldate = urlModified.getTime();
for (Map.Entry<DigestURI, Properties> anchorEntry: anchors.entrySet()) {
DigestURI anchor = anchorEntry.getKey();
byte[] refhash = anchor.hash();
//System.out.println("*** addCitationIndex: urlhash = " + ASCII.String(urlhash) + ", refhash = " + ASCII.String(refhash) + ", urldate = " + urlModified.toString());
if (this.urlCitationIndex != null) try {
this.urlCitationIndex.add(refhash, new CitationReference(urlhash, urldate));
} catch (final Exception e) {
Log.logException(e);
}
refCount++;
}
return refCount;
}
public synchronized void close() {
if (this.termIndex != null) this.termIndex.close();
if (this.fulltext != null) this.fulltext.close();
if (this.urlCitationIndex != null) this.urlCitationIndex.close();
}
private static String votedLanguage(
final DigestURI url,
final String urlNormalform,
final Document document,
final Condenser condenser) {
// do a identification of the language
String language = condenser.language(); // this is a statistical analysation of the content: will be compared with other attributes
final String bymetadata = document.dc_language(); // 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) ? url.language() : bymetadata;
} else {
if (bymetadata == null) {
// two possible results: compare and report conflicts
if (!language.equals(url.language())) {
// see if we have a hint in the url that the statistic was right
final String u = urlNormalform.toLowerCase();
if (!u.contains("/" + language + "/") && !u.contains("/" + ISO639.country(language).toLowerCase() + "/")) {
// no confirmation using the url, use the TLD
language = url.language();
} else {
// this is a strong hint that the statistics was in fact correct
}
}
} else {
// here we have three results: we can do a voting
if (language.equals(bymetadata)) {
//if (log.isFine()) log.logFine("LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - METADATA IDENTICAL: " + language);
} else if (language.equals(url.language())) {
//if (log.isFine()) log.logFine("LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFIRMED - TLD IS IDENTICAL: " + language);
} else if (bymetadata.equals(url.language())) {
//if (log.isFine()) log.logFine("LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: " + language + " BUT METADATA AND TLD ARE IDENTICAL: " + bymetadata + ")");
language = bymetadata;
} else {
//if (log.isFine()) log.logFine("LANGUAGE-BY-STATISTICS: " + entry.url() + " CONFLICTING: ALL DIFFERENT! statistic: " + language + ", metadata: " + bymetadata + ", TLD: + " + entry.url().language() + ". taking metadata.");
language = bymetadata;
}
}
}
return language;
}
public void storeRWI(final ReferenceContainer<WordReference> wordContainer) throws IOException, SpaceExceededException {
if (this.termIndex != null) this.termIndex.add(wordContainer);
}
public void storeRWI(final byte[] termHash, final WordReference entry) throws IOException, SpaceExceededException {
if (this.termIndex != null) this.termIndex.add(termHash, entry);
}
public SolrInputDocument storeDocument(
final DigestURI url,
final DigestURI referrerURL,
final CrawlProfile profile,
final ResponseHeader responseHeader,
final Document document,
final Condenser condenser,
final SearchEvent searchEvent,
final String sourceName,
final boolean storeToRWI
) {
final long startTime = System.currentTimeMillis();
// DO A SOFT/HARD COMMIT IF NEEDED
if (MemoryControl.shortStatus()) {
// do a 'hard' commit to flush index caches
this.fulltext.commit(false);
} else {
if (
(this.fulltext.getDefaultConfiguration().contains(CollectionSchema.exact_signature_l) && this.fulltext.getDefaultConfiguration().contains(CollectionSchema.exact_signature_unique_b)) ||
(this.fulltext.getDefaultConfiguration().contains(CollectionSchema.fuzzy_signature_l) && this.fulltext.getDefaultConfiguration().contains(CollectionSchema.fuzzy_signature_unique_b)) ||
this.fulltext.getDefaultConfiguration().contains(CollectionSchema.title_unique_b) ||
this.fulltext.getDefaultConfiguration().contains(CollectionSchema.description_unique_b)
) {
this.fulltext.getDefaultConnector().commit(true); // make sure that we have latest information for the postprocessing steps
}
}
// CREATE INDEX
// load some document metadata
final Date loadDate = new Date();
final String id = ASCII.String(url.hash());
final String dc_title = document.dc_title();
final String urlNormalform = url.toNormalform(true);
final String language = votedLanguage(url, urlNormalform, document, condenser); // identification of the language
// STORE URL TO LOADED-URL-DB
Date modDate = responseHeader == null ? new Date() : responseHeader.lastModified();
if (modDate.getTime() > loadDate.getTime()) modDate = loadDate;
char docType = Response.docType(document.dc_format());
// CREATE SOLR DOCUMENT
final CollectionConfiguration.SolrVector vector = this.fulltext.getDefaultConfiguration().yacy2solr(id, profile, responseHeader, document, condenser, referrerURL, language, urlCitationIndex, this.fulltext.getWebgraphConfiguration());
// FIND OUT IF THIS IS A DOUBLE DOCUMENT
for (CollectionSchema[] checkfields: new CollectionSchema[][]{
{CollectionSchema.exact_signature_l, CollectionSchema.exact_signature_unique_b},
{CollectionSchema.fuzzy_signature_l, CollectionSchema.fuzzy_signature_unique_b}}) {
CollectionSchema checkfield = checkfields[0];
CollectionSchema uniquefield = checkfields[1];
if (this.fulltext.getDefaultConfiguration().contains(checkfield) && this.fulltext.getDefaultConfiguration().contains(uniquefield)) {
// lookup the document with the same signature
long signature = ((Long) vector.getField(checkfield.getSolrFieldName()).getValue()).longValue();
try {
if (this.fulltext.getDefaultConnector().exists(checkfield.getSolrFieldName(), Long.toString(signature))) {
// change unique attribut in content
vector.setField(uniquefield.getSolrFieldName(), false);
}
} catch (IOException e) {}
}
}
// CHECK IF TITLE AND DESCRIPTION IS UNIQUE (this is by default not switched on)
uniquecheck: for (CollectionSchema[] checkfields: new CollectionSchema[][]{
{CollectionSchema.title, CollectionSchema.title_unique_b},
{CollectionSchema.description, CollectionSchema.description_unique_b}}) {
CollectionSchema checkfield = checkfields[0];
CollectionSchema uniquefield = checkfields[1];
if (this.fulltext.getDefaultConfiguration().contains(checkfield) && this.fulltext.getDefaultConfiguration().contains(uniquefield)) {
// lookup in the index for the same title
String checkstring = checkfield == CollectionSchema.title ? document.dc_title() : document.dc_description();
if (checkstring.length() == 0) {
vector.setField(uniquefield.getSolrFieldName(), false);
continue uniquecheck;
}
checkstring = ClientUtils.escapeQueryChars("\"" + checkstring + "\"");
try {
if (this.fulltext.getDefaultConnector().exists(checkfield.getSolrFieldName(), checkstring)) {
// switch unique attribute in new document
vector.setField(uniquefield.getSolrFieldName(), false);
// switch attribute also in all existing documents (which should be exactly only one!)
SolrDocumentList docs = this.fulltext.getDefaultConnector().query(checkfield.getSolrFieldName() + ":" + checkstring + " AND " + uniquefield.getSolrFieldName() + ":true", 0, 1000);
for (SolrDocument doc: docs) {
SolrInputDocument sid = this.fulltext.getDefaultConfiguration().toSolrInputDocument(doc);
sid.setField(uniquefield.getSolrFieldName(), false);
this.fulltext.getDefaultConnector().add(sid);
}
} else {
vector.setField(uniquefield.getSolrFieldName(), true);
}
} catch (IOException e) {}
}
}
// ENRICH DOCUMENT WITH RANKING INFORMATION
if (this.connectedCitation()) {
this.fulltext.getDefaultConfiguration().postprocessing_references(this, null, vector, url);
}
// STORE TO SOLR
String error = null;
tryloop: for (int i = 0; i < 20; i++) {
try {
error = null;
this.fulltext.putDocument(vector);
break tryloop;
} catch ( final IOException e ) {
error = "failed to send " + urlNormalform + " to solr";
Log.logWarning("SOLR", error + e.getMessage());
if (i == 10) this.fulltext.commit(false);
try {Thread.sleep(1000);} catch (InterruptedException e1) {}
continue tryloop;
}
}
if (this.writeWebgraph) {
tryloop: for (int i = 0; i < 20; i++) {
try {
error = null;
this.fulltext.putEdges(vector.getWebgraphDocuments());
break tryloop;
} catch ( final IOException e ) {
error = "failed to send " + urlNormalform + " to solr";
Log.logWarning("SOLR", error + e.getMessage());
if (i == 10) this.fulltext.commit(false);
try {Thread.sleep(1000);} catch (InterruptedException e1) {}
continue tryloop;
}
}
}
if (error != null) {
Log.logWarning("SOLR", error + ", pausing Crawler!");
// pause the crawler!!!
Switchboard.getSwitchboard().pauseCrawlJob(SwitchboardConstants.CRAWLJOB_LOCAL_CRAWL, error);
Switchboard.getSwitchboard().pauseCrawlJob(SwitchboardConstants.CRAWLJOB_REMOTE_TRIGGERED_CRAWL, error);
}
final long storageEndTime = System.currentTimeMillis();
// STORE PAGE INDEX INTO WORD INDEX DB
int outlinksSame = document.inboundLinks().size();
int outlinksOther = document.outboundLinks().size();
final int urlLength = urlNormalform.length();
final int urlComps = MultiProtocolURI.urlComps(url.toString()).length;
// create a word prototype which is re-used for all entries
if ((this.termIndex != null && storeToRWI) || searchEvent != null) {
final int len = (document == null) ? urlLength : document.dc_title().length();
final WordReferenceRow ientry = new WordReferenceRow(
url.hash(),
urlLength, urlComps, len,
condenser.RESULT_NUMB_WORDS,
condenser.RESULT_NUMB_SENTENCES,
modDate.getTime(),
System.currentTimeMillis(),
UTF8.getBytes(language),
docType,
outlinksSame, outlinksOther);
// iterate over all words of content text
Word wprop = null;
byte[] wordhash;
String word;
for (Map.Entry<String, Word> wentry: condenser.words().entrySet()) {
word = wentry.getKey();
wprop = wentry.getValue();
assert (wprop.flags != null);
ientry.setWord(wprop);
wordhash = Word.word2hash(word);
if (this.termIndex != null && storeToRWI) try {
this.termIndex.add(wordhash, ientry);
} catch (final Exception e) {
Log.logException(e);
}
// during a search event it is possible that a heuristic is used which aquires index
// data during search-time. To transfer indexed data directly to the search process
// the following lines push the index data additionally to the search process
// this is done only for searched words
if (searchEvent != null && !searchEvent.query.getQueryGoal().getExcludeHashes().has(wordhash) && searchEvent.query.getQueryGoal().getIncludeHashes().has(wordhash)) {
// if the page was added in the context of a heuristic this shall ensure that findings will fire directly into the search result
ReferenceContainer<WordReference> container;
try {
container = ReferenceContainer.emptyContainer(Segment.wordReferenceFactory, wordhash, 1);
container.add(ientry);
searchEvent.addRWIs(container, true, sourceName, 1, 5000);
} catch (final SpaceExceededException e) {
continue;
}
}
}
if (searchEvent != null) searchEvent.addFinalize();
// assign the catchall word
ientry.setWord(wprop == null ? catchallWord : wprop); // we use one of the word properties as template to get the document characteristics
if (this.termIndex != null) try {
this.termIndex.add(catchallHash, ientry);
} catch (final Exception e) {
Log.logException(e);
}
}
// STORE PAGE REFERENCES INTO CITATION INDEX
final int refs = addCitationIndex(url, modDate, document.getAnchors());
// finish index time
final long indexingEndTime = System.currentTimeMillis();
if (this.log.isInfo()) {
this.log.logInfo("*Indexed " + condenser.words().size() + " words in URL " + url +
" [" + id + "]" +
"\n\tDescription: " + dc_title +
"\n\tMimeType: " + document.dc_format() + " | Charset: " + document.getCharset() + " | " +
"Size: " + document.getTextLength() + " bytes | " +
"Anchors: " + refs +
"\n\tLinkStorageTime: " + (storageEndTime - startTime) + " ms | " +
"indexStorageTime: " + (indexingEndTime - storageEndTime) + " ms");
}
// finished
return vector;
}
public void removeAllUrlReferences(final HandleSet urls, final LoaderDispatcher loader, final CacheStrategy cacheStrategy) {
for (final byte[] urlhash: urls) removeAllUrlReferences(urlhash, loader, cacheStrategy);
}
/**
* find all the words in a specific resource and remove the url reference from every word index
* finally, delete the url entry
* @param urlhash the hash of the url that shall be removed
* @param loader
* @param cacheStrategy
* @return number of removed words
*/
public int removeAllUrlReferences(final byte[] urlhash, final LoaderDispatcher loader, final CacheStrategy cacheStrategy) {
if (urlhash == null) return 0;
// determine the url string
final DigestURI url = fulltext().getURL(urlhash);
if (url == null) return 0;
try {
// parse the resource
final Document document = Document.mergeDocuments(url, null, loader.loadDocuments(loader.request(url, true, false), cacheStrategy, Integer.MAX_VALUE, null, CrawlQueues.queuedMinLoadDelay));
if (document == null) {
// delete just the url entry
fulltext().remove(urlhash);
return 0;
}
// get the word set
Set<String> words = null;
words = new Condenser(document, true, true, null, null, false).words().keySet();
// delete all word references
int count = 0;
if (words != null) count = termIndex().remove(Word.words2hashesHandles(words), urlhash);
// finally delete the url entry itself
fulltext().remove(urlhash);
return count;
} catch (final Parser.Failure e) {
return 0;
} catch (final IOException e) {
Log.logException(e);
return 0;
}
}
}