You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
268 lines
12 KiB
268 lines
12 KiB
// yacySearch.java
|
|
// -------------------------------------
|
|
// (C) by Michael Peter Christen; mc@yacy.net
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2004
|
|
//
|
|
// $LastChangedDate$
|
|
// $LastChangedRevision$
|
|
// $LastChangedBy$
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
package net.yacy.peers;
|
|
|
|
import java.util.Iterator;
|
|
import java.util.List;
|
|
import java.util.SortedMap;
|
|
import java.util.regex.Pattern;
|
|
|
|
import net.yacy.cora.document.ASCII;
|
|
import net.yacy.kelondro.index.HandleSet;
|
|
import net.yacy.kelondro.logging.Log;
|
|
import net.yacy.kelondro.order.Bitfield;
|
|
import net.yacy.peers.dht.PeerSelection;
|
|
import net.yacy.repository.Blacklist;
|
|
import net.yacy.search.index.Segment;
|
|
import net.yacy.search.query.QueryParams;
|
|
import net.yacy.search.query.RWIProcess;
|
|
import net.yacy.search.query.SearchEvent;
|
|
import net.yacy.search.ranking.RankingProfile;
|
|
|
|
|
|
public class RemoteSearch extends Thread {
|
|
|
|
private static final ThreadGroup ysThreadGroup = new ThreadGroup("yacySearchThreadGroup");
|
|
|
|
final private String wordhashes, excludehashes, urlhashes, sitehash, authorhash;
|
|
final private boolean global;
|
|
final private int partitions;
|
|
final private Segment indexSegment;
|
|
final private RWIProcess containerCache;
|
|
final private SearchEvent.SecondarySearchSuperviser secondarySearchSuperviser;
|
|
final private Blacklist blacklist;
|
|
final private Seed targetPeer;
|
|
private int urls;
|
|
private final int count, maxDistance;
|
|
private final long time;
|
|
final private RankingProfile rankingProfile;
|
|
final private Pattern prefer, filter, snippet;
|
|
final private QueryParams.Modifier modifier;
|
|
final private String language;
|
|
final private Bitfield constraint;
|
|
final private SeedDB peers;
|
|
|
|
public RemoteSearch(
|
|
final String wordhashes, final String excludehashes,
|
|
final String urlhashes, // this is the field that is filled during a secondary search to restrict to specific urls that are to be retrieved
|
|
final Pattern prefer,
|
|
final Pattern filter,
|
|
final Pattern snippet,
|
|
final QueryParams.Modifier modifier,
|
|
final String language,
|
|
final String sitehash, final String authorhash,
|
|
final int count, final long time, final int maxDistance,
|
|
final boolean global, final int partitions,
|
|
final Seed targetPeer,
|
|
final Segment indexSegment,
|
|
final SeedDB peers,
|
|
final RWIProcess containerCache,
|
|
final SearchEvent.SecondarySearchSuperviser secondarySearchSuperviser,
|
|
final Blacklist blacklist,
|
|
final RankingProfile rankingProfile,
|
|
final Bitfield constraint) {
|
|
super(ysThreadGroup, "yacySearch_" + targetPeer.getName());
|
|
//System.out.println("DEBUG - yacySearch thread " + this.getName() + " initialized " + ((urlhashes.length() == 0) ? "(primary)" : "(secondary)"));
|
|
assert wordhashes.length() >= 12;
|
|
this.wordhashes = wordhashes;
|
|
this.excludehashes = excludehashes;
|
|
this.urlhashes = urlhashes;
|
|
this.prefer = prefer;
|
|
this.filter = filter;
|
|
this.snippet = snippet;
|
|
this.modifier = modifier;
|
|
this.language = language;
|
|
this.sitehash = sitehash;
|
|
this.authorhash = authorhash;
|
|
this.global = global;
|
|
this.partitions = partitions;
|
|
this.indexSegment = indexSegment;
|
|
this.peers = peers;
|
|
this.containerCache = containerCache;
|
|
this.secondarySearchSuperviser = secondarySearchSuperviser;
|
|
this.blacklist = blacklist;
|
|
this.targetPeer = targetPeer;
|
|
this.urls = -1;
|
|
this.count = count;
|
|
this.time = time;
|
|
this.maxDistance = maxDistance;
|
|
this.rankingProfile = rankingProfile;
|
|
this.constraint = constraint;
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
this.containerCache.oneFeederStarted();
|
|
try {
|
|
this.urls = Protocol.search(
|
|
this.peers.mySeed(),
|
|
this.wordhashes, this.excludehashes, this.urlhashes,
|
|
this.prefer, this.filter, this.snippet, this.modifier.getModifier(),
|
|
this.language, this.sitehash, this.authorhash,
|
|
this.count, this.time, this.maxDistance, this.global, this.partitions,
|
|
this.targetPeer, this.indexSegment, this.containerCache, this.secondarySearchSuperviser,
|
|
this.blacklist, this.rankingProfile, this.constraint);
|
|
if (this.urls >= 0) {
|
|
// urls is an array of url hashes. this is only used for log output
|
|
if (this.urlhashes != null && this.urlhashes.length() > 0) Network.log.logInfo("SECONDARY REMOTE SEARCH - remote peer " + this.targetPeer.hash + ":" + this.targetPeer.getName() + " contributed " + this.urls + " links for word hash " + this.wordhashes);
|
|
this.peers.mySeed().incRI(this.urls);
|
|
this.peers.mySeed().incRU(this.urls);
|
|
} else {
|
|
Network.log.logInfo("REMOTE SEARCH - no answer from remote peer " + this.targetPeer.hash + ":" + this.targetPeer.getName());
|
|
}
|
|
} catch (final Exception e) {
|
|
Log.logException(e);
|
|
} finally {
|
|
this.containerCache.oneFeederTerminated();
|
|
}
|
|
}
|
|
|
|
public static String set2string(final HandleSet hashes) {
|
|
final StringBuilder wh = new StringBuilder(hashes.size() * 12);
|
|
final Iterator<byte[]> iter = hashes.iterator();
|
|
while (iter.hasNext()) { wh.append(ASCII.String(iter.next())); }
|
|
return wh.toString();
|
|
}
|
|
|
|
public int links() {
|
|
return this.urls;
|
|
}
|
|
|
|
public int count() {
|
|
return this.count;
|
|
}
|
|
|
|
public Seed target() {
|
|
return this.targetPeer;
|
|
}
|
|
|
|
public static void primaryRemoteSearches(
|
|
final List<RemoteSearch> searchThreads,
|
|
final String wordhashes, final String excludehashes,
|
|
final Pattern prefer, final Pattern filter, final Pattern snippet,
|
|
final QueryParams.Modifier modifier,
|
|
final String language,
|
|
final String sitehash,
|
|
final String authorhash,
|
|
final int count, final long time, final int maxDist,
|
|
final Segment indexSegment,
|
|
final SeedDB peers,
|
|
final RWIProcess containerCache,
|
|
final SearchEvent.SecondarySearchSuperviser secondarySearchSuperviser,
|
|
final Blacklist blacklist,
|
|
final RankingProfile rankingProfile,
|
|
final Bitfield constraint,
|
|
final SortedMap<byte[], String> clusterselection,
|
|
final int burstRobinsonPercent,
|
|
final int burstMultiwordPercent) {
|
|
// check own peer status
|
|
//if (wordIndex.seedDB.mySeed() == null || wordIndex.seedDB.mySeed().getPublicAddress() == null) { return null; }
|
|
|
|
// prepare seed targets and threads
|
|
assert language != null;
|
|
assert wordhashes.length() >= 12 : "wordhashes = " + wordhashes;
|
|
final Seed[] targetPeers =
|
|
(clusterselection == null) ?
|
|
PeerSelection.selectSearchTargets(
|
|
peers,
|
|
QueryParams.hashes2Set(wordhashes),
|
|
peers.redundancy(),
|
|
burstRobinsonPercent,
|
|
burstMultiwordPercent)
|
|
: PeerSelection.selectClusterPeers(peers, clusterselection);
|
|
if (targetPeers == null) return;
|
|
final int targets = targetPeers.length;
|
|
if (targets == 0) return;
|
|
for (int i = 0; i < targets; i++) {
|
|
if (targetPeers[i] == null || targetPeers[i].hash == null) continue;
|
|
try {
|
|
RemoteSearch rs = new RemoteSearch(
|
|
wordhashes, excludehashes, "", prefer, filter, snippet, modifier,
|
|
language, sitehash, authorhash,
|
|
count, time, maxDist, true, targets, targetPeers[i],
|
|
indexSegment, peers, containerCache, secondarySearchSuperviser, blacklist, rankingProfile, constraint);
|
|
rs.start();
|
|
searchThreads.add(rs);
|
|
} catch (final OutOfMemoryError e) {
|
|
Log.logException(e);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
public static RemoteSearch secondaryRemoteSearch(
|
|
final String wordhashes, final String urlhashes,
|
|
final long time,
|
|
final Segment indexSegment,
|
|
final SeedDB peers,
|
|
final RWIProcess containerCache,
|
|
final String targethash, final Blacklist blacklist,
|
|
final RankingProfile rankingProfile,
|
|
final Bitfield constraint, final SortedMap<byte[], String> clusterselection) {
|
|
assert wordhashes.length() >= 12 : "wordhashes = " + wordhashes;
|
|
|
|
// check own peer status
|
|
if (peers.mySeed() == null || peers.mySeed().getPublicAddress() == null) { return null; }
|
|
assert urlhashes != null;
|
|
assert urlhashes.length() > 0;
|
|
|
|
// prepare seed targets and threads
|
|
final Seed targetPeer = peers.getConnected(targethash);
|
|
if (targetPeer == null || targetPeer.hash == null) return null;
|
|
if (clusterselection != null) targetPeer.setAlternativeAddress(clusterselection.get(ASCII.getBytes(targetPeer.hash)));
|
|
final RemoteSearch searchThread = new RemoteSearch(
|
|
wordhashes, "", urlhashes, QueryParams.matchnothing_pattern, QueryParams.catchall_pattern, QueryParams.catchall_pattern, new QueryParams.Modifier(""), "", "", "", 20, time, 9999, true, 0, targetPeer,
|
|
indexSegment, peers, containerCache, null, blacklist, rankingProfile, constraint);
|
|
searchThread.start();
|
|
return searchThread;
|
|
}
|
|
|
|
public static int remainingWaiting(final RemoteSearch[] searchThreads) {
|
|
if (searchThreads == null) return 0;
|
|
int alive = 0;
|
|
for (final RemoteSearch searchThread : searchThreads) {
|
|
if (searchThread.isAlive()) alive++;
|
|
}
|
|
return alive;
|
|
}
|
|
|
|
public static int collectedLinks(final RemoteSearch[] searchThreads) {
|
|
int links = 0;
|
|
for (final RemoteSearch searchThread : searchThreads) {
|
|
if (!(searchThread.isAlive()) && searchThread.urls > 0) {
|
|
links += searchThread.urls;
|
|
}
|
|
}
|
|
return links;
|
|
}
|
|
|
|
public static void interruptAlive(final RemoteSearch[] searchThreads) {
|
|
for (final RemoteSearch searchThread : searchThreads) {
|
|
if (searchThread.isAlive()) searchThread.interrupt();
|
|
}
|
|
}
|
|
|
|
}
|