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07f09742bb
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5893 6c8d7289-2bf4-0310-a012-ef5d649a1542
752 lines
39 KiB
Java
752 lines
39 KiB
Java
// 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.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.data.Blacklist;
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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.kelondro.blob.BLOBArray;
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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.text.BufferedIndex;
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import de.anomic.kelondro.text.IndexCell;
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import de.anomic.kelondro.text.IndexCollectionMigration;
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import de.anomic.kelondro.text.ReferenceContainer;
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import de.anomic.kelondro.text.IODispatcher;
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import de.anomic.kelondro.text.MetadataRepository;
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import de.anomic.kelondro.text.ReferenceFactory;
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import de.anomic.kelondro.text.metadataPrototype.URLMetadataRow;
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import de.anomic.kelondro.text.referencePrototype.WordReference;
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import de.anomic.kelondro.text.referencePrototype.WordReferenceFactory;
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import de.anomic.kelondro.text.referencePrototype.WordReferenceRow;
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import de.anomic.kelondro.util.FileUtils;
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import de.anomic.kelondro.util.kelondroException;
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import de.anomic.kelondro.util.Log;
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import de.anomic.plasma.parser.Word;
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import de.anomic.plasma.parser.Condenser;
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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.yacySeedDB;
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import de.anomic.yacy.yacyURL;
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public final class plasmaWordIndex {
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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 long targetFileSize = 100 * 1024 * 1024; // 100 MB
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public static final long maxFileSize = BLOBArray.oneGigabyte; // 1GB
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// the reference factory
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public static final ReferenceFactory<WordReference> wordReferenceFactory = new WordReferenceFactory();
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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 CRAWL_PROFILE_SURROGATE = "surrogates";
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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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public static final long CRAWL_PROFILE_SURROGATE_RECRAWL_CYCLE = 60L * 24L * 30L;
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public static final ByteOrder wordOrder = Base64Order.enhancedCoder;
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private final BufferedIndex<WordReference> index;
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private final Log log;
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private MetadataRepository metadata;
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private final yacySeedDB peers;
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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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public CrawlProfile.entry defaultSurrogateProfile;
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private final File queuesRoot;
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private IODispatcher<WordReference> merger;
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public plasmaWordIndex(
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final String networkName,
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final Log 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) throws IOException {
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log.logInfo("Initializing Word Index for the network '" + networkName + "', word hash cache size is " + Word.hashCacheSize + ".");
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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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FileUtils.deletedelete(oldPrimaryPath);
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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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// check if the peer has migrated the index
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if (new File(indexPrimaryTextLocation, "RICOLLECTION").exists()) {
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this.merger = new IODispatcher<WordReference>(plasmaWordIndex.wordReferenceFactory, 1, 1);
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if (this.merger != null) this.merger.start();
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this.index = new IndexCollectionMigration<WordReference>(
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indexPrimaryTextLocation,
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wordReferenceFactory,
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wordOrder,
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WordReferenceRow.urlEntryRow,
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entityCacheMaxSize,
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targetFileSize,
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maxFileSize,
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this.merger,
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log);
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} else {
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this.merger = new IODispatcher<WordReference>(plasmaWordIndex.wordReferenceFactory, 1, 1);
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this.merger.start();
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this.index = new IndexCell<WordReference>(
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new File(indexPrimaryTextLocation, "RICELL"),
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wordReferenceFactory,
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wordOrder,
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WordReferenceRow.urlEntryRow,
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entityCacheMaxSize,
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targetFileSize,
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maxFileSize,
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this.merger);
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}
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// migrate LURL-db files into new subdirectory METADATA
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File textdir = new File(this.secondaryRoot, "TEXT");
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File metadatadir = new File(textdir, "METADATA");
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if (!metadatadir.exists()) metadatadir.mkdirs();
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String[] l = textdir.list();
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for (int i = 0; i < l.length; i++) {
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if (l[i].startsWith("urls.")) (new File(textdir, l[i])).renameTo(new File(metadatadir, l[i]));
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}
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// create LURL-db
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metadata = new MetadataRepository(metadatadir);
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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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FileUtils.deletedelete(profilesActiveFile);
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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.logInfo("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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FileUtils.deletedelete(profilesPassiveFile);
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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.logInfo("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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peers = new yacySeedDB(
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networkRoot,
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"seed.new.heap",
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"seed.old.heap",
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"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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public MetadataRepository metadata() {
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return this.metadata;
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}
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public yacySeedDB peers() {
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return this.peers;
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}
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public BufferedIndex<WordReference> index() {
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return this.index;
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}
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public void clear() {
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try {
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index.clear();
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metadata.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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this.defaultSurrogateProfile = 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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if (name.equals(CRAWL_PROFILE_SURROGATE)) this.defaultSurrogateProfile = 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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this.defaultSurrogateProfile = 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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if (this.defaultSurrogateProfile == null) {
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// generate new default entry for surrogate parsing
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defaultSurrogateProfile = this.profilesActiveCrawls.newEntry(CRAWL_PROFILE_SURROGATE, null, CrawlProfile.KEYWORDS_SNIPPET, CrawlProfile.MATCH_ALL, CrawlProfile.MATCH_NEVER, 0,
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this.profilesActiveCrawls.getRecrawlDate(CRAWL_PROFILE_SURROGATE_RECRAWL_CYCLE), -1, -1, true, true, false, false, false, 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()) FileUtils.deletedelete(pdb);
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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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(entry.name().equals(CRAWL_PROFILE_SURROGATE)))) {
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profilesPassiveCrawls.newEntry(entry.map());
|
|
iter.remove();
|
|
hasDoneSomething = true;
|
|
}
|
|
}
|
|
} catch (final kelondroException e) {
|
|
resetProfiles();
|
|
hasDoneSomething = true;
|
|
}
|
|
return hasDoneSomething;
|
|
}
|
|
|
|
public File getLocation(final boolean primary) {
|
|
return (primary) ? this.primaryRoot : this.secondaryRoot;
|
|
}
|
|
|
|
/**
|
|
* 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 Condenser 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, Word>> i = condenser.words().entrySet().iterator();
|
|
Map.Entry<String, Word> wentry;
|
|
String word;
|
|
int len = (document == null) ? urlLength : document.dc_title().length();
|
|
WordReferenceRow ientry = new WordReferenceRow(url.hash(),
|
|
urlLength, urlComps, len,
|
|
condenser.RESULT_NUMB_WORDS,
|
|
condenser.RESULT_NUMB_SENTENCES,
|
|
urlModified.getTime(),
|
|
System.currentTimeMillis(),
|
|
language,
|
|
doctype,
|
|
outlinksSame, outlinksOther);
|
|
Word wprop;
|
|
while (i.hasNext()) {
|
|
wentry = i.next();
|
|
word = wentry.getKey();
|
|
wprop = wentry.getValue();
|
|
assert (wprop.flags != null);
|
|
ientry.setWord(wprop);
|
|
try {
|
|
this.index.add(Word.word2hash(word), ientry);
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
wordCount++;
|
|
}
|
|
|
|
return wordCount;
|
|
}
|
|
|
|
public void close() {
|
|
if (this.merger != null) this.merger.terminate();
|
|
index.close();
|
|
metadata.close();
|
|
peers.close();
|
|
profilesActiveCrawls.close();
|
|
queuePreStack.close();
|
|
}
|
|
|
|
public URLMetadataRow storeDocument(final IndexingStack.QueueEntry entry, final plasmaParserDocument document, final Condenser 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.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) ? 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 URLMetadataRow newEntry = new URLMetadataRow(
|
|
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
|
|
metadata.store(newEntry); // TODO: should be serialized; integrated in IODispatcher
|
|
|
|
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(peers.mySeed().hash)) ? RSSFeed.LOCALINDEXING : RSSFeed.REMOTEINDEXING).addMessage(new RSSMessage("Indexed web page", dc_title, entry.url().toNormalform(true, false)));
|
|
}
|
|
|
|
// finished
|
|
return newEntry;
|
|
}
|
|
|
|
@SuppressWarnings("unchecked")
|
|
public HashMap<byte[], ReferenceContainer<WordReference>>[] localSearchContainers(
|
|
final TreeSet<byte[]> queryHashes,
|
|
final TreeSet<byte[]> excludeHashes,
|
|
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<byte[], ReferenceContainer<WordReference>> inclusionContainers =
|
|
(queryHashes.size() == 0) ?
|
|
new HashMap<byte[], ReferenceContainer<WordReference>>(0) :
|
|
getContainers(queryHashes, urlselection);
|
|
if ((inclusionContainers.size() != 0) && (inclusionContainers.size() < queryHashes.size())) inclusionContainers = new HashMap<byte[], ReferenceContainer<WordReference>>(0); // prevent that only a subset is returned
|
|
final HashMap<byte[], ReferenceContainer<WordReference>> exclusionContainers =
|
|
(inclusionContainers.size() == 0) ?
|
|
new HashMap<byte[], ReferenceContainer<WordReference>>(0) :
|
|
getContainers(excludeHashes, urlselection);
|
|
return new HashMap[]{inclusionContainers, exclusionContainers};
|
|
}
|
|
|
|
/**
|
|
* collect containers for given word hashes. This collection stops if a single container does not contain any references.
|
|
* In that case only a empty result is returned.
|
|
* @param wordHashes
|
|
* @param urlselection
|
|
* @return map of wordhash:indexContainer
|
|
*/
|
|
private HashMap<byte[], ReferenceContainer<WordReference>> getContainers(final TreeSet<byte[]> wordHashes, final Set<String> urlselection) {
|
|
// retrieve entities that belong to the hashes
|
|
final HashMap<byte[], ReferenceContainer<WordReference>> containers = new HashMap<byte[], ReferenceContainer<WordReference>>(wordHashes.size());
|
|
byte[] singleHash;
|
|
ReferenceContainer<WordReference> singleContainer;
|
|
final Iterator<byte[]> i = wordHashes.iterator();
|
|
while (i.hasNext()) {
|
|
|
|
// get next word hash:
|
|
singleHash = i.next();
|
|
|
|
// retrieve index
|
|
try {
|
|
singleContainer = index.get(singleHash, urlselection);
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
continue;
|
|
}
|
|
|
|
// check result
|
|
if ((singleContainer == null || singleContainer.size() == 0)) return new HashMap<byte[], ReferenceContainer<WordReference>>(0);
|
|
|
|
containers.put(singleHash, singleContainer);
|
|
}
|
|
return containers;
|
|
}
|
|
|
|
// The Cleaner class was provided as "UrldbCleaner" by Hydrox
|
|
public synchronized ReferenceCleaner getReferenceCleaner(final byte[] startHash) {
|
|
return new ReferenceCleaner(startHash);
|
|
}
|
|
|
|
public class ReferenceCleaner extends Thread {
|
|
|
|
private final byte[] startHash;
|
|
private boolean run = true;
|
|
private boolean pause = false;
|
|
public int rwiCountAtStart = 0;
|
|
public byte[] wordHashNow = null;
|
|
public byte[] lastWordHash = null;
|
|
public int lastDeletionCounter = 0;
|
|
|
|
public ReferenceCleaner(final byte[] startHash) {
|
|
this.startHash = startHash;
|
|
this.rwiCountAtStart = index().size();
|
|
}
|
|
|
|
public void run() {
|
|
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread started");
|
|
ReferenceContainer<WordReference> container = null;
|
|
WordReference entry = null;
|
|
yacyURL url = null;
|
|
final HashSet<String> urlHashs = new HashSet<String>();
|
|
try {
|
|
Iterator<ReferenceContainer<WordReference>> indexContainerIterator = index.references(startHash, false, 100, false).iterator();
|
|
while (indexContainerIterator.hasNext() && run) {
|
|
waiter();
|
|
container = indexContainerIterator.next();
|
|
final Iterator<WordReference> containerIterator = container.entries();
|
|
wordHashNow = container.getTermHash();
|
|
while (containerIterator.hasNext() && run) {
|
|
waiter();
|
|
entry = containerIterator.next();
|
|
// System.out.println("Wordhash: "+wordHash+" UrlHash:
|
|
// "+entry.getUrlHash());
|
|
final URLMetadataRow ue = metadata.load(entry.metadataHash(), entry, 0);
|
|
if (ue == null) {
|
|
urlHashs.add(entry.metadataHash());
|
|
} else {
|
|
url = ue.metadata().url();
|
|
if ((url == null) || (plasmaSwitchboard.urlBlacklist.isListed(Blacklist.BLACKLIST_CRAWLER, url) == true)) {
|
|
urlHashs.add(entry.metadataHash());
|
|
}
|
|
}
|
|
}
|
|
if (urlHashs.size() > 0) try {
|
|
final int removed = index.remove(container.getTermHash(), urlHashs);
|
|
Log.logFine("INDEXCLEANER", container.getTermHashAsString() + ": " + removed + " of " + container.size() + " URL-entries deleted");
|
|
lastWordHash = container.getTermHash();
|
|
lastDeletionCounter = urlHashs.size();
|
|
urlHashs.clear();
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
if (!containerIterator.hasNext()) {
|
|
// We may not be finished yet, try to get the next chunk of wordHashes
|
|
final TreeSet<ReferenceContainer<WordReference>> containers = index.references(container.getTermHash(), false, 100, false);
|
|
indexContainerIterator = containers.iterator();
|
|
// Make sure we don't get the same wordhash twice, but don't skip a word
|
|
if ((indexContainerIterator.hasNext()) && (!container.getTermHash().equals(indexContainerIterator.next().getTermHash()))) {
|
|
indexContainerIterator = containers.iterator();
|
|
}
|
|
}
|
|
}
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
}
|
|
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread stopped");
|
|
}
|
|
|
|
public void abort() {
|
|
synchronized(this) {
|
|
run = false;
|
|
this.notifyAll();
|
|
}
|
|
}
|
|
|
|
public void pause() {
|
|
synchronized (this) {
|
|
if (!pause) {
|
|
pause = true;
|
|
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread paused");
|
|
}
|
|
}
|
|
}
|
|
|
|
public void endPause() {
|
|
synchronized (this) {
|
|
if (pause) {
|
|
pause = false;
|
|
this.notifyAll();
|
|
Log.logInfo("INDEXCLEANER", "IndexCleaner-Thread resumed");
|
|
}
|
|
}
|
|
}
|
|
|
|
public void waiter() {
|
|
synchronized (this) {
|
|
if (this.pause) {
|
|
try {
|
|
this.wait();
|
|
} catch (final InterruptedException e) {
|
|
this.run = false;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|