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https://github.com/yacy/yacy_search_server.git
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1dff620181
The better SortStack performance affects crawling and image search speed and quality. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6492 6c8d7289-2bf4-0310-a012-ef5d649a1542
593 lines
29 KiB
Java
593 lines
29 KiB
Java
// TextSnippet.java
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// -----------------
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2005
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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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// 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.search;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.Set;
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import java.util.TreeMap;
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import java.util.TreeSet;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import net.yacy.document.Condenser;
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import net.yacy.document.Document;
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import net.yacy.document.ParserException;
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import net.yacy.document.parser.html.CharacterCoding;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.data.meta.URIMetadataRow;
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import net.yacy.kelondro.data.word.Word;
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import net.yacy.kelondro.data.word.WordReferenceVars;
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import net.yacy.kelondro.index.ARC;
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import net.yacy.kelondro.index.ConcurrentARC;
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import net.yacy.kelondro.logging.Log;
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import net.yacy.kelondro.order.Base64Order;
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import net.yacy.kelondro.util.SetTools;
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import net.yacy.repository.LoaderDispatcher;
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import de.anomic.crawler.retrieval.Response;
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import de.anomic.http.client.Cache;
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import de.anomic.http.server.ResponseHeader;
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import de.anomic.yacy.yacySearch;
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public class TextSnippet {
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private static final int maxCache = 1000;
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public static final int SOURCE_CACHE = 0;
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public static final int SOURCE_FILE = 1;
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public static final int SOURCE_WEB = 2;
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public static final int SOURCE_METADATA = 3;
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public static final int ERROR_NO_HASH_GIVEN = 11;
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public static final int ERROR_SOURCE_LOADING = 12;
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public static final int ERROR_RESOURCE_LOADING = 13;
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public static final int ERROR_PARSER_FAILED = 14;
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public static final int ERROR_PARSER_NO_LINES = 15;
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public static final int ERROR_NO_MATCH = 16;
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private static final ARC<String, String> snippetsCache = new ConcurrentARC<String, String>(maxCache, Math.max(10, Runtime.getRuntime().availableProcessors()));
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private static final ARC<String, DigestURI> faviconCache = new ConcurrentARC<String, DigestURI>(maxCache, Math.max(10, Runtime.getRuntime().availableProcessors()));
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private final DigestURI url;
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private String line;
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private final String error;
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private final int errorCode;
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private TreeSet<byte[]> remaingHashes;
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private final DigestURI favicon;
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public static boolean existsInCache(final DigestURI url, final TreeSet<byte[]> queryhashes) {
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final String hashes = yacySearch.set2string(queryhashes);
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return retrieveFromCache(hashes, url.hash()) != null;
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}
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public static void storeToCache(final String wordhashes, final String urlhash, final String snippet) {
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// generate key
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String key = urlhash + wordhashes;
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// do nothing if snippet is known
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if (snippetsCache.containsKey(key)) return;
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// learn new snippet
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snippetsCache.put(key, snippet);
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}
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public static String retrieveFromCache(final String wordhashes, final String urlhash) {
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// generate key
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final String key = urlhash + wordhashes;
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return snippetsCache.get(key);
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}
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/**
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* removed all word hashes that can be computed as tokens from a given sentence from a given hash set
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* @param sentence
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* @param queryhashes
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* @return the given hash set minus the hashes from the tokenization of the given sentence
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*/
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public static TreeSet<byte[]> removeAppearanceHashes(final String sentence, final TreeSet<byte[]> queryhashes) {
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// remove all hashes that appear in the sentence
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if (sentence == null) return queryhashes;
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final TreeMap<byte[], Integer> hs = Condenser.hashSentence(sentence);
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final Iterator<byte[]> j = queryhashes.iterator();
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byte[] hash;
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Integer pos;
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final TreeSet<byte[]> remaininghashes = new TreeSet<byte[]>(Base64Order.enhancedCoder);
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while (j.hasNext()) {
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hash = j.next();
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pos = hs.get(hash);
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if (pos == null) {
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remaininghashes.add(hash);
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}
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}
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return remaininghashes;
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}
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/**
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* <code>\\A[^\\p{L}\\p{N}].+</code>
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*/
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private final static Pattern p1 = Pattern.compile("\\A[^\\p{L}\\p{N}].+");
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/**
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* <code>.+[^\\p{L}\\p{N}]\\Z</code>
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*/
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private final static Pattern p2 = Pattern.compile(".+[^\\p{L}\\p{N}]\\Z");
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/**
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* <code>\\A[\\p{L}\\p{N}]+[^\\p{L}\\p{N}].+\\Z</code>
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*/
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private final static Pattern p3 = Pattern.compile("\\A[\\p{L}\\p{N}]+[^\\p{L}\\p{N}].+\\Z");
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/**
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* <code>[^\\p{L}\\p{N}]</code>
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*/
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private final static Pattern p4 = Pattern.compile("[^\\p{L}\\p{N}]");
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/**
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* <code>(.*?)(\\<b\\>.+?\\</b\\>)(.*)</code>
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*/
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private final static Pattern p01 = Pattern.compile("(.*?)(\\<b\\>.+?\\</b\\>)(.*)"); // marked words are in <b>-tags
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public TextSnippet(final DigestURI url, final String line, final int errorCode, final TreeSet<byte[]> remaingHashes, final String errortext) {
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this(url,line,errorCode,remaingHashes,errortext,null);
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}
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public TextSnippet(final DigestURI url, final String line, final int errorCode, final TreeSet<byte[]> remaingHashes, final String errortext, final DigestURI favicon) {
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this.url = url;
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this.line = line;
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this.errorCode = errorCode;
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this.error = errortext;
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this.remaingHashes = remaingHashes;
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this.favicon = favicon;
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}
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public DigestURI getUrl() {
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return this.url;
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}
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public DigestURI getFavicon() {
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return this.favicon;
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}
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public boolean exists() {
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return line != null;
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}
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@Override
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public String toString() {
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return (line == null) ? "" : line;
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}
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public String getLineRaw() {
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return (line == null) ? "" : line;
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}
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public String getError() {
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return (error == null) ? "" : error.trim();
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}
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public int getErrorCode() {
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return errorCode;
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}
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public TreeSet<byte[]> getRemainingHashes() {
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return this.remaingHashes;
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}
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public String getLineMarked(final TreeSet<byte[]> queryHashes) {
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if (line == null) return "";
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if ((queryHashes == null) || (queryHashes.size() == 0)) return line.trim();
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if (line.endsWith(".")) line = line.substring(0, line.length() - 1);
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final Iterator<byte[]> i = queryHashes.iterator();
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byte[] h;
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final String[] w = line.split(" ");
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while (i.hasNext()) {
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h = i.next();
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for (int j = 0; j < w.length; j++) {
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final ArrayList<String> al = markedWordArrayList(w[j]); // mark special character separated words correctly if more than 1 word has to be marked
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w[j] = "";
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for (int k = 0; k < al.size(); k++) {
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if(k % 2 == 0){ // word has not been marked
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w[j] += getWordMarked(al.get(k), h);
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} else { // word has been marked, do not encode again
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w[j] += al.get(k);
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}
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}
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}
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}
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final StringBuilder l = new StringBuilder(line.length() + queryHashes.size() * 8);
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for (int j = 0; j < w.length; j++) {
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l.append(w[j]);
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l.append(' ');
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}
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return l.toString().trim();
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}
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/**
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* mark words with <b>-tags
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* @param word the word to mark
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* @param h the hash of the word to mark
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* @return the marked word if hash matches, else the unmarked word
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* @see #getLineMarked(Set)
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*/
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private static String getWordMarked(String word, byte[] h){
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//ignore punctuation marks (contrib [MN])
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//note to myself:
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//For details on regex see "Mastering regular expressions" by J.E.F. Friedl
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//especially p. 123 and p. 390/391 (in the German version of the 2nd edition)
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String prefix = "";
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String postfix = "";
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int len = 0;
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// cut off prefix if it contains of non-characters or non-numbers
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while(p1.matcher(word).find()) {
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prefix = prefix + word.substring(0,1);
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word = word.substring(1);
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}
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// cut off postfix if it contains of non-characters or non-numbers
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while(p2.matcher(word).find()) {
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len = word.length();
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postfix = word.substring(len-1,len) + postfix;
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word = word.substring(0,len-1);
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}
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//special treatment if there is a special character in the word
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if(p3.matcher(word).find()) {
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String out = "";
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String temp = "";
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for(int k=0; k < word.length(); k++) {
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//is character a special character?
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if(p4.matcher(word.substring(k,k+1)).find()) {
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if (new String(Word.word2hash(temp)).equals(new String(h))) temp = "<b>" + CharacterCoding.unicode2html(temp, false) + "</b>";
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out = out + temp + CharacterCoding.unicode2html(word.substring(k,k+1), false);
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temp = "";
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}
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//last character
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else if(k == (word.length()-1)) {
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temp = temp + word.substring(k,k+1);
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if (new String(Word.word2hash(temp)).equals(new String(h))) temp = "<b>" + CharacterCoding.unicode2html(temp, false) + "</b>";
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out = out + temp;
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temp = "";
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}
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else temp = temp + word.substring(k,k+1);
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}
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word = out;
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}
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//end contrib [MN]
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else if (new String(Word.word2hash(word)).equals(new String(h))) word = "<b>" + CharacterCoding.unicode2html(word, false) + "</b>";
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word = CharacterCoding.unicode2html(prefix, false)
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+ word
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+ CharacterCoding.unicode2html(postfix, false);
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return word;
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}
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/**
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* words that already has been marked has index <code>(i % 2 == 1)</code>
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* words that has not yet been marked has index <code>(i % 2 == 0)</code>
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* @param string the String to be processed
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* @return words that already has and has not yet been marked
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* @author [DW], 08.11.2008
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*/
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private static ArrayList<String> markedWordArrayList(String string){
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ArrayList<String> al = new java.util.ArrayList<String>(1);
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Matcher m = p01.matcher(string);
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while (m.find()) {
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al.add(m.group(1));
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al.add(m.group(2));
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string = m.group(3); // the postfix
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m = p01.matcher(string);
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}
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al.add(string);
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return al;
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}
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@SuppressWarnings("unchecked")
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public static TextSnippet retrieveTextSnippet(final URIMetadataRow.Components comp, final TreeSet<byte[]> queryhashes, final boolean fetchOnline, final boolean pre, final int snippetMaxLength, final int maxDocLen, final boolean reindexing) {
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// heise = "0OQUNU3JSs05"
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final DigestURI url = comp.url();
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if (queryhashes.size() == 0) {
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//System.out.println("found no queryhashes for URL retrieve " + url);
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return new TextSnippet(url, null, ERROR_NO_HASH_GIVEN, queryhashes, "no query hashes given");
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}
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// try to get snippet from snippetCache
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int source = SOURCE_CACHE;
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final String wordhashes = yacySearch.set2string(queryhashes);
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String line = retrieveFromCache(wordhashes, url.hash());
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if (line != null) {
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// found the snippet
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return new TextSnippet(url, line, source, null, null, faviconCache.get(url.hash()));
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}
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/* ===========================================================================
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* LOADING RESOURCE DATA
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* =========================================================================== */
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// if the snippet is not in the cache, we can try to get it from the htcache
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byte[] resContent = null;
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ResponseHeader responseHeader = null;
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try {
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// first try to get the snippet from metadata
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String loc;
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if (containsAllHashes(loc = comp.dc_title(), queryhashes)) {
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// try to create the snippet from information given in the url itself
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return new TextSnippet(url, loc, SOURCE_METADATA, null, null, faviconCache.get(url.hash()));
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} else if (containsAllHashes(loc = comp.dc_creator(), queryhashes)) {
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// try to create the snippet from information given in the creator metadata
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return new TextSnippet(url, loc, SOURCE_METADATA, null, null, faviconCache.get(url.hash()));
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} else if (containsAllHashes(loc = comp.dc_subject(), queryhashes)) {
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// try to create the snippet from information given in the subject metadata
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return new TextSnippet(url, loc, SOURCE_METADATA, null, null, faviconCache.get(url.hash()));
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} else if (containsAllHashes(loc = comp.url().toNormalform(true, true).replace('-', ' '), queryhashes)) {
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// try to create the snippet from information given in the subject metadata
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return new TextSnippet(url, loc, SOURCE_METADATA, null, null, faviconCache.get(url.hash()));
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} else {
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// trying to load the resource from the cache
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resContent = Cache.getContent(url);
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responseHeader = Cache.getResponseHeader(url);
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if (resContent != null && !fetchOnline && resContent.length > maxDocLen) {
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// content may be too large to be parsed here. To be fast, we omit calculation of snippet here
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return new TextSnippet(url, null, ERROR_SOURCE_LOADING, queryhashes, "resource available, but too large: " + resContent.length + " bytes");
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} else if (fetchOnline) {
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// if not found try to download it
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// download resource using the crawler and keep resource in memory if possible
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final Response entry = Switchboard.getSwitchboard().loader.load(url, true, reindexing);
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// getting resource metadata (e.g. the http headers for http resources)
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if (entry != null) {
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// place entry on indexing queue
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Switchboard.getSwitchboard().toIndexer(entry);
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// read resource body (if it is there)
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final byte[] resourceArray = entry.getContent();
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if (resourceArray != null) {
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resContent = resourceArray;
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} else {
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resContent = Cache.getContent(url);
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}
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}
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// if it is still not available, report an error
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if (resContent == null) return new TextSnippet(url, null, ERROR_RESOURCE_LOADING, queryhashes, "error loading resource, plasmaHTCache.Entry cache is NULL");
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source = SOURCE_WEB;
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} else {
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return new TextSnippet(url, null, ERROR_SOURCE_LOADING, queryhashes, "no resource available");
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}
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}
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} catch (final Exception e) {
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//Log.logException(e);
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return new TextSnippet(url, null, ERROR_SOURCE_LOADING, queryhashes, "error loading resource: " + e.getMessage());
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}
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/* ===========================================================================
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* PARSING RESOURCE
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* =========================================================================== */
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Document document = null;
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try {
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document = LoaderDispatcher.parseDocument(url, resContent.length, new ByteArrayInputStream(resContent), responseHeader);
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} catch (final ParserException e) {
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return new TextSnippet(url, null, ERROR_PARSER_FAILED, queryhashes, e.getMessage()); // cannot be parsed
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} finally {
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resContent = null;
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}
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if (document == null) return new TextSnippet(url, null, ERROR_PARSER_FAILED, queryhashes, "parser error/failed"); // cannot be parsed
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/* ===========================================================================
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* COMPUTE SNIPPET
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* =========================================================================== */
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final DigestURI resFavicon = document.getFavicon();
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if (resFavicon != null) faviconCache.put(url.hash(), resFavicon);
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// we have found a parseable non-empty file: use the lines
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// compute snippet from text
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final Iterator<StringBuilder> sentences = document.getSentences(pre);
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if (sentences == null) return new TextSnippet(url, null, ERROR_PARSER_NO_LINES, queryhashes, "parser returned no sentences",resFavicon);
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final Object[] tsr = computeTextSnippet(sentences, queryhashes, snippetMaxLength);
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final String textline = (tsr == null) ? null : (String) tsr[0];
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final TreeSet<byte[]> remainingHashes = (tsr == null) ? queryhashes : (TreeSet<byte[]>) tsr[1];
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// compute snippet from media
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//String audioline = computeMediaSnippet(document.getAudiolinks(), queryhashes);
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//String videoline = computeMediaSnippet(document.getVideolinks(), queryhashes);
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//String appline = computeMediaSnippet(document.getApplinks(), queryhashes);
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//String hrefline = computeMediaSnippet(document.getAnchors(), queryhashes);
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//String imageline = computeMediaSnippet(document.getAudiolinks(), queryhashes);
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line = "";
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//if (audioline != null) line += (line.length() == 0) ? audioline : "<br />" + audioline;
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//if (videoline != null) line += (line.length() == 0) ? videoline : "<br />" + videoline;
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//if (appline != null) line += (line.length() == 0) ? appline : "<br />" + appline;
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//if (hrefline != null) line += (line.length() == 0) ? hrefline : "<br />" + hrefline;
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if (textline != null) line += (line.length() == 0) ? textline : "<br />" + textline;
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if ((line == null) || (remainingHashes.size() > 0)) return new TextSnippet(url, null, ERROR_NO_MATCH, remainingHashes, "no matching snippet found",resFavicon);
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if (line.length() > snippetMaxLength) line = line.substring(0, snippetMaxLength);
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// finally store this snippet in our own cache
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storeToCache(wordhashes, url.hash(), line);
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document.close();
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return new TextSnippet(url, line, source, null, null, resFavicon);
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}
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private static boolean containsAllHashes(final String sentence, final Set<byte[]> queryhashes) {
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final TreeMap<byte[], Integer> m = Condenser.hashSentence(sentence);
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final Iterator<byte[]> i = queryhashes.iterator();
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while (i.hasNext()) {
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if (!(m.containsKey(i.next()))) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
@SuppressWarnings("unchecked")
|
|
private static Object[] /*{String - the snippet, Set - remaining hashes}*/
|
|
computeTextSnippet(final Iterator<StringBuilder> sentences, final TreeSet<byte[]> queryhashes, int maxLength) {
|
|
try {
|
|
if (sentences == null) return null;
|
|
if ((queryhashes == null) || (queryhashes.size() == 0)) return null;
|
|
Iterator<byte[]> j;
|
|
TreeMap<byte[], Integer> hs;
|
|
StringBuilder sentence;
|
|
final TreeMap<Integer, StringBuilder> os = new TreeMap<Integer, StringBuilder>();
|
|
int uniqCounter = 9999;
|
|
int score;
|
|
while (sentences.hasNext()) {
|
|
sentence = sentences.next();
|
|
hs = Condenser.hashSentence(sentence.toString());
|
|
j = queryhashes.iterator();
|
|
score = 0;
|
|
while (j.hasNext()) {if (hs.containsKey(j.next())) score++;}
|
|
if (score > 0) {
|
|
os.put(Integer.valueOf(1000000 * score - sentence.length() * 10000 + uniqCounter--), sentence);
|
|
}
|
|
}
|
|
|
|
String result;
|
|
TreeSet<byte[]> remaininghashes;
|
|
while (os.size() > 0) {
|
|
sentence = os.remove(os.lastKey()); // sentence with the biggest score
|
|
Object[] tsr = computeTextSnippet(sentence.toString(), queryhashes, maxLength);
|
|
if (tsr == null) continue;
|
|
result = (String) tsr[0];
|
|
if ((result != null) && (result.length() > 0)) {
|
|
remaininghashes = (TreeSet<byte[]>) tsr[1];
|
|
if (remaininghashes.size() == 0) {
|
|
// we have found the snippet
|
|
return new Object[]{result, remaininghashes};
|
|
} else if (remaininghashes.size() < queryhashes.size()) {
|
|
// the result has not all words in it.
|
|
// find another sentence that represents the missing other words
|
|
// and find recursively more sentences
|
|
maxLength = maxLength - result.length();
|
|
if (maxLength < 20) maxLength = 20;
|
|
tsr = computeTextSnippet(os.values().iterator(), remaininghashes, maxLength);
|
|
if (tsr == null) return null;
|
|
final String nextSnippet = (String) tsr[0];
|
|
if (nextSnippet == null) return tsr;
|
|
return new Object[]{result + (" / " + nextSnippet), tsr[1]};
|
|
} else {
|
|
// error
|
|
//assert remaininghashes.size() < queryhashes.size() : "remaininghashes.size() = " + remaininghashes.size() + ", queryhashes.size() = " + queryhashes.size() + ", sentence = '" + sentence + "', result = '" + result + "'";
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
} catch (final IndexOutOfBoundsException e) {
|
|
Log.logSevere("computeSnippet", "error with string generation", e);
|
|
return new Object[]{null, queryhashes};
|
|
}
|
|
}
|
|
|
|
private static Object[] /*{String - the snippet, Set - remaining hashes}*/
|
|
computeTextSnippet(String sentence, final TreeSet<byte[]> queryhashes, final int maxLength) {
|
|
try {
|
|
if (sentence == null) return null;
|
|
if ((queryhashes == null) || (queryhashes.size() == 0)) return null;
|
|
byte[] hash;
|
|
|
|
// find all hashes that appear in the sentence
|
|
final TreeMap<byte[], Integer> hs = Condenser.hashSentence(sentence);
|
|
final Iterator<byte[]> j = queryhashes.iterator();
|
|
Integer pos;
|
|
int p, minpos = sentence.length(), maxpos = -1;
|
|
final TreeSet<byte[]> remainingHashes = new TreeSet<byte[]>(Base64Order.enhancedCoder);
|
|
while (j.hasNext()) {
|
|
hash = j.next();
|
|
pos = hs.get(hash);
|
|
if (pos == null) {
|
|
remainingHashes.add(hash);
|
|
} else {
|
|
p = pos.intValue();
|
|
if (p > maxpos) maxpos = p;
|
|
if (p < minpos) minpos = p;
|
|
}
|
|
}
|
|
// check result size
|
|
maxpos = maxpos + 10;
|
|
if (maxpos > sentence.length()) maxpos = sentence.length();
|
|
if (minpos < 0) minpos = 0;
|
|
// we have a result, but is it short enough?
|
|
if (maxpos - minpos + 10 > maxLength) {
|
|
// the string is too long, even if we cut at both ends
|
|
// so cut here in the middle of the string
|
|
final int lenb = sentence.length();
|
|
sentence = sentence.substring(0, (minpos + 20 > sentence.length()) ? sentence.length() : minpos + 20).trim() +
|
|
" [..] " +
|
|
sentence.substring((maxpos + 26 > sentence.length()) ? sentence.length() : maxpos + 26).trim();
|
|
maxpos = maxpos + lenb - sentence.length() + 6;
|
|
}
|
|
if (maxpos > maxLength) {
|
|
// the string is too long, even if we cut it at the end
|
|
// so cut it here at both ends at once
|
|
assert maxpos >= minpos;
|
|
final int newlen = Math.max(10, maxpos - minpos + 10);
|
|
final int around = (maxLength - newlen) / 2;
|
|
assert minpos - around < sentence.length() : "maxpos = " + maxpos + ", minpos = " + minpos + ", around = " + around + ", sentence.length() = " + sentence.length();
|
|
//assert ((maxpos + around) <= sentence.length()) && ((maxpos + around) <= sentence.length()) : "maxpos = " + maxpos + ", minpos = " + minpos + ", around = " + around + ", sentence.length() = " + sentence.length();
|
|
sentence = "[..] " + sentence.substring(minpos - around, ((maxpos + around) > sentence.length()) ? sentence.length() : (maxpos + around)).trim() + " [..]";
|
|
minpos = around;
|
|
maxpos = sentence.length() - around - 5;
|
|
}
|
|
if (sentence.length() > maxLength) {
|
|
// trim sentence, 1st step (cut at right side)
|
|
sentence = sentence.substring(0, maxpos).trim() + " [..]";
|
|
}
|
|
if (sentence.length() > maxLength) {
|
|
// trim sentence, 2nd step (cut at left side)
|
|
sentence = "[..] " + sentence.substring(minpos).trim();
|
|
}
|
|
if (sentence.length() > maxLength) {
|
|
// trim sentence, 3rd step (cut in the middle)
|
|
sentence = sentence.substring(6, 20).trim() + " [..] " + sentence.substring(sentence.length() - 26, sentence.length() - 6).trim();
|
|
}
|
|
return new Object[] {sentence, remainingHashes};
|
|
} catch (final IndexOutOfBoundsException e) {
|
|
Log.logSevere("computeSnippet", "error with string generation", e);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static String failConsequences(Segment indexSegment, final WordReferenceVars word, final TextSnippet snippet, final String eventID) throws IOException {
|
|
// problems with snippet fetch
|
|
final String urlHash = snippet.getUrl().hash();
|
|
final String querystring = SetTools.setToString(snippet.getRemainingHashes(), ' ');
|
|
if ((snippet.getErrorCode() == ERROR_SOURCE_LOADING) ||
|
|
(snippet.getErrorCode() == ERROR_RESOURCE_LOADING) ||
|
|
(snippet.getErrorCode() == ERROR_PARSER_FAILED) ||
|
|
(snippet.getErrorCode() == ERROR_PARSER_NO_LINES)) {
|
|
Log.logInfo("TextSnippet", "error: '" + snippet.getError() + "', remove url = " + snippet.getUrl().toNormalform(false, true) + ", cause: " + snippet.getError());
|
|
indexSegment.urlMetadata().remove(urlHash);
|
|
final SearchEvent event = SearchEventCache.getEvent(eventID);
|
|
assert indexSegment != null;
|
|
assert event != null : "eventID = " + eventID;
|
|
assert event.getQuery() != null;
|
|
indexSegment.termIndex().remove(event.getQuery().queryHashes, urlHash);
|
|
event.remove(word);
|
|
}
|
|
if (snippet.getErrorCode() == ERROR_NO_MATCH) {
|
|
Log.logInfo("TextSnippet", "error: '" + snippet.getError() + "', remove words '" + querystring + "' for url = " + snippet.getUrl().toNormalform(false, true) + ", cause: " + snippet.getError());
|
|
indexSegment.termIndex().remove(snippet.getRemainingHashes(), urlHash);
|
|
SearchEventCache.getEvent(eventID).remove(word);
|
|
}
|
|
return snippet.getError();
|
|
}
|
|
|
|
}
|