mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
0cbda0b2b8
- replaced some length() > 0 and size() > 0 with !isEmpty() - cannot be done automatically - implemented some isEmpty() methods
576 lines
22 KiB
Java
576 lines
22 KiB
Java
// CrawlSwitchboard.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.crawler;
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import java.io.File;
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import java.io.IOException;
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import java.util.Collections;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeMap;
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import net.yacy.cora.document.UTF8;
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import net.yacy.cora.services.federated.yacy.CacheStrategy;
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import net.yacy.kelondro.blob.MapHeap;
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import net.yacy.kelondro.data.word.Word;
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import net.yacy.kelondro.index.RowSpaceExceededException;
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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.order.NaturalOrder;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.kelondro.util.kelondroException;
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import net.yacy.repository.RegexHelper;
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public final class CrawlSwitchboard
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{
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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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private final Log log;
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private MapHeap profilesActiveCrawls;
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private final MapHeap profilesPassiveCrawls;
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private final Map<byte[], CrawlProfile> profilesActiveCrawlsCache; //TreeMap<byte[], DigestURI>(Base64Order.enhancedCoder);
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public CrawlProfile defaultProxyProfile;
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public CrawlProfile defaultRemoteProfile;
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public CrawlProfile defaultTextSnippetLocalProfile, defaultTextSnippetGlobalProfile;
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public CrawlProfile defaultMediaSnippetLocalProfile, defaultMediaSnippetGlobalProfile;
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public CrawlProfile defaultSurrogateProfile;
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private final File queuesRoot;
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public CrawlSwitchboard(final String networkName, final Log log, final File queuesRoot) {
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log.logInfo("Initializing Word Index for the network '" + networkName + "'.");
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if ( networkName == null || networkName.isEmpty() ) {
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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.profilesActiveCrawlsCache =
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Collections.synchronizedMap(new TreeMap<byte[], CrawlProfile>(Base64Order.enhancedCoder));
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// make crawl profiles database and default profiles
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this.queuesRoot = queuesRoot;
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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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this.profilesActiveCrawls = loadFromDB(profilesActiveFile);
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for ( final byte[] handle : this.profilesActiveCrawls.keySet() ) {
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CrawlProfile p;
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try {
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p = new CrawlProfile(this.profilesActiveCrawls.get(handle));
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} catch ( final IOException e ) {
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p = null;
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} catch ( final RowSpaceExceededException e ) {
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p = null;
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}
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if ( p == null ) {
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continue;
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}
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if ( !RegexHelper.isValidRegex(p.get(CrawlProfile.FILTER_URL_MUSTMATCH)) ) {
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removeActive(handle);
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Log.logWarning("CrawlProfiles", "removed Profile "
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+ p.handle()
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+ ": "
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+ p.name()
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+ " from active crawls since "
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+ CrawlProfile.FILTER_URL_MUSTMATCH
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+ " is no valid regular expression: "
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+ p.get(CrawlProfile.FILTER_URL_MUSTMATCH));
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} else if ( !RegexHelper.isValidRegex(p.get(CrawlProfile.FILTER_URL_MUSTNOTMATCH)) ) {
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removeActive(handle);
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Log.logWarning("CrawlProfiles", "removed Profile "
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+ p.handle()
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+ ": "
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+ p.name()
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+ " from active crawls since "
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+ CrawlProfile.FILTER_URL_MUSTNOTMATCH
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+ " is no valid regular expression: "
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+ p.get(CrawlProfile.FILTER_URL_MUSTNOTMATCH));
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} else {
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Log.logInfo("CrawlProfiles", "loaded Profile " + p.handle() + ": " + p.name());
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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 "
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+ profilesActiveFile.getName()
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+ ", "
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+ this.profilesActiveCrawls.size()
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+ " entries");
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final File profilesPassiveFile = new File(queuesRoot, DBFILE_PASSIVE_CRAWL_PROFILES);
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this.profilesPassiveCrawls = loadFromDB(profilesPassiveFile);
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for ( final byte[] handle : this.profilesPassiveCrawls.keySet() ) {
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CrawlProfile p;
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try {
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p = new CrawlProfile(this.profilesPassiveCrawls.get(handle));
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Log.logInfo("CrawlProfiles", "loaded Profile " + p.handle() + ": " + p.name());
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} catch ( final IOException e ) {
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continue;
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} catch ( final RowSpaceExceededException e ) {
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continue;
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}
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}
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log.logInfo("Loaded passive crawl profiles from file "
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+ profilesPassiveFile.getName()
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+ ", "
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+ this.profilesPassiveCrawls.size()
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+ " entries"
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+ ", "
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+ profilesPassiveFile.length()
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/ 1024);
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}
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public CrawlProfile getActive(final byte[] profileKey) {
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if ( profileKey == null ) {
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return null;
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}
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// get from cache
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CrawlProfile p = this.profilesActiveCrawlsCache.get(profileKey);
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if ( p != null ) {
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return p;
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}
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// get from db
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Map<String, String> m;
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try {
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m = this.profilesActiveCrawls.get(profileKey);
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} catch ( final IOException e ) {
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m = null;
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} catch ( final RowSpaceExceededException e ) {
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m = null;
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}
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if ( m == null ) {
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return null;
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}
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p = new CrawlProfile(m);
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this.profilesActiveCrawlsCache.put(profileKey, p);
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return p;
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}
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public CrawlProfile getPassive(final byte[] profileKey) {
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if ( profileKey == null ) {
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return null;
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}
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Map<String, String> m;
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try {
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m = this.profilesPassiveCrawls.get(profileKey);
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} catch ( final IOException e ) {
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m = null;
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} catch ( final RowSpaceExceededException e ) {
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m = null;
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}
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if ( m == null ) {
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return null;
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}
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return new CrawlProfile(m);
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}
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public Set<byte[]> getActive() {
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return this.profilesActiveCrawls.keySet();
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}
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public Set<byte[]> getPassive() {
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return this.profilesPassiveCrawls.keySet();
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}
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public void removeActive(final byte[] profileKey) {
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if ( profileKey == null ) {
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return;
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}
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this.profilesActiveCrawlsCache.remove(profileKey);
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this.profilesActiveCrawls.remove(profileKey);
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}
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public void removePassive(final byte[] profileKey) {
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if ( profileKey == null ) {
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return;
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}
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this.profilesPassiveCrawls.remove(profileKey);
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}
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public void putActive(final byte[] profileKey, final CrawlProfile profile) {
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this.profilesActiveCrawls.put(profileKey, profile);
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this.profilesActiveCrawlsCache.put(profileKey, profile);
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}
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public void putPassive(final byte[] profileKey, final CrawlProfile profile) {
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this.profilesPassiveCrawls.put(profileKey, profile);
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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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CrawlProfile profile;
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String name;
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try {
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for ( final byte[] handle : this.profilesActiveCrawls.keySet() ) {
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profile = new CrawlProfile(this.profilesActiveCrawls.get(handle));
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name = profile.name();
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if ( name.equals(CRAWL_PROFILE_PROXY) ) {
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this.defaultProxyProfile = profile;
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}
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if ( name.equals(CRAWL_PROFILE_REMOTE) ) {
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this.defaultRemoteProfile = profile;
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}
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if ( name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT) ) {
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this.defaultTextSnippetLocalProfile = profile;
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}
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if ( name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT) ) {
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this.defaultTextSnippetGlobalProfile = profile;
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}
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if ( name.equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA) ) {
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this.defaultMediaSnippetLocalProfile = profile;
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}
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if ( name.equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA) ) {
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this.defaultMediaSnippetGlobalProfile = profile;
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}
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if ( name.equals(CRAWL_PROFILE_SURROGATE) ) {
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this.defaultSurrogateProfile = profile;
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}
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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 =
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new CrawlProfile(
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"proxy",
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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0 /*Integer.parseInt(getConfig(PROXY_PREFETCH_DEPTH, "0"))*/,
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true,
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CrawlProfile.getRecrawlDate(CRAWL_PROFILE_PROXY_RECRAWL_CYCLE),
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-1,
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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,
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false /*getConfigBool(PROXY_INDEXING_REMOTE, false)*/,
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true,
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true,
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true,
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CacheStrategy.IFFRESH);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultProxyProfile.handle()),
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this.defaultProxyProfile);
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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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this.defaultRemoteProfile =
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new CrawlProfile(
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CRAWL_PROFILE_REMOTE,
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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CrawlProfile.MATCH_NEVER_STRING,
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0,
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false,
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-1,
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-1,
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true,
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true,
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true,
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false,
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false,
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true,
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true,
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false,
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CacheStrategy.IFFRESH);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultRemoteProfile.handle()),
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this.defaultRemoteProfile);
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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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this.defaultTextSnippetLocalProfile =
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new CrawlProfile(
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CRAWL_PROFILE_SNIPPET_LOCAL_TEXT,
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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0,
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false,
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CrawlProfile.getRecrawlDate(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT_RECRAWL_CYCLE),
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-1,
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true,
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false,
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false,
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true,
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false,
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true,
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true,
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false,
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CacheStrategy.IFEXIST);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultTextSnippetLocalProfile.handle()),
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this.defaultTextSnippetLocalProfile);
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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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this.defaultTextSnippetGlobalProfile =
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new CrawlProfile(
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CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT,
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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0,
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false,
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CrawlProfile.getRecrawlDate(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT_RECRAWL_CYCLE),
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-1,
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true,
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true,
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true,
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true,
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false,
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true,
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true,
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false,
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CacheStrategy.IFEXIST);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultTextSnippetGlobalProfile.handle()),
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this.defaultTextSnippetGlobalProfile);
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}
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this.defaultTextSnippetGlobalProfile.setCacheStrategy(CacheStrategy.IFEXIST);
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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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this.defaultMediaSnippetLocalProfile =
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new CrawlProfile(
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CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA,
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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0,
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false,
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CrawlProfile.getRecrawlDate(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA_RECRAWL_CYCLE),
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-1,
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true,
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false,
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false,
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true,
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false,
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true,
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true,
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false,
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CacheStrategy.IFEXIST);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultMediaSnippetLocalProfile.handle()),
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this.defaultMediaSnippetLocalProfile);
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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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this.defaultMediaSnippetGlobalProfile =
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new CrawlProfile(
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CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA,
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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0,
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false,
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CrawlProfile.getRecrawlDate(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA_RECRAWL_CYCLE),
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-1,
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true,
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false,
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true,
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true,
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false,
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true,
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true,
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false,
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CacheStrategy.IFEXIST);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultMediaSnippetGlobalProfile.handle()),
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this.defaultMediaSnippetGlobalProfile);
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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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this.defaultSurrogateProfile =
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new CrawlProfile(
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CRAWL_PROFILE_SURROGATE,
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null,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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CrawlProfile.MATCH_ALL_STRING,
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CrawlProfile.MATCH_NEVER_STRING,
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"",
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0,
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false,
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CrawlProfile.getRecrawlDate(CRAWL_PROFILE_SURROGATE_RECRAWL_CYCLE),
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-1,
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true,
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true,
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false,
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false,
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false,
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true,
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true,
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false,
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CacheStrategy.NOCACHE);
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this.profilesActiveCrawls.put(
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UTF8.getBytes(this.defaultSurrogateProfile.handle()),
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this.defaultSurrogateProfile);
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}
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}
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private void resetProfiles() {
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this.profilesActiveCrawlsCache.clear();
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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);
|
|
}
|
|
try {
|
|
this.profilesActiveCrawls =
|
|
new MapHeap(pdb, Word.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64, 500, ' ');
|
|
} catch ( final IOException e1 ) {
|
|
Log.logException(e1);
|
|
this.profilesActiveCrawls = null;
|
|
}
|
|
initActiveCrawlProfiles();
|
|
}
|
|
|
|
public boolean clear() throws InterruptedException {
|
|
this.profilesActiveCrawlsCache.clear();
|
|
CrawlProfile entry;
|
|
boolean hasDoneSomething = false;
|
|
try {
|
|
for ( final byte[] handle : this.profilesActiveCrawls.keySet() ) {
|
|
// check for interruption
|
|
if ( Thread.currentThread().isInterrupted() ) {
|
|
throw new InterruptedException("Shutdown in progress");
|
|
}
|
|
|
|
// getting next profile
|
|
try {
|
|
entry = new CrawlProfile(this.profilesActiveCrawls.get(handle));
|
|
} catch ( final IOException e ) {
|
|
continue;
|
|
} catch ( final RowSpaceExceededException e ) {
|
|
continue;
|
|
}
|
|
if ( !((entry.name().equals(CRAWL_PROFILE_PROXY))
|
|
|| (entry.name().equals(CRAWL_PROFILE_REMOTE))
|
|
|| (entry.name().equals(CRAWL_PROFILE_SNIPPET_LOCAL_TEXT))
|
|
|| (entry.name().equals(CRAWL_PROFILE_SNIPPET_GLOBAL_TEXT))
|
|
|| (entry.name().equals(CRAWL_PROFILE_SNIPPET_LOCAL_MEDIA))
|
|
|| (entry.name().equals(CRAWL_PROFILE_SNIPPET_GLOBAL_MEDIA)) || (entry.name()
|
|
.equals(CRAWL_PROFILE_SURROGATE))) ) {
|
|
final CrawlProfile p = new CrawlProfile(entry);
|
|
this.profilesPassiveCrawls.put(UTF8.getBytes(p.handle()), p);
|
|
this.profilesActiveCrawls.remove(handle);
|
|
hasDoneSomething = true;
|
|
}
|
|
}
|
|
} catch ( final kelondroException e ) {
|
|
resetProfiles();
|
|
hasDoneSomething = true;
|
|
}
|
|
return hasDoneSomething;
|
|
}
|
|
|
|
public synchronized void close() {
|
|
this.profilesActiveCrawlsCache.clear();
|
|
this.profilesActiveCrawls.close();
|
|
this.profilesPassiveCrawls.close();
|
|
}
|
|
|
|
/**
|
|
* Loads crawl profiles from a DB file.
|
|
*
|
|
* @param file DB file
|
|
* @return crawl profile data
|
|
*/
|
|
private static MapHeap loadFromDB(final File file) {
|
|
MapHeap ret;
|
|
try {
|
|
ret = new MapHeap(file, Word.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64, 500, ' ');
|
|
} catch ( final IOException e ) {
|
|
Log.logException(e);
|
|
Log.logException(e);
|
|
FileUtils.deletedelete(file);
|
|
try {
|
|
ret =
|
|
new MapHeap(file, Word.commonHashLength, NaturalOrder.naturalOrder, 1024 * 64, 500, ' ');
|
|
} catch ( final IOException e1 ) {
|
|
Log.logException(e1);
|
|
ret = null;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
}
|