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https://github.com/yacy/yacy_search_server.git
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c8624903c6
terms (words) are not any more retrieved by their word hash string, but by a byte[] containing the word hash. this has strong advantages when RWIs are sorted in the ReferenceContainer Cache and compared with the sun.java TreeMap method, which needed getBytes() and new String() transformations before. Many thousands of such conversions are now omitted every second, which increases the indexing speed by a factor of two. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5812 6c8d7289-2bf4-0310-a012-ef5d649a1542
120 lines
5.4 KiB
Java
120 lines
5.4 KiB
Java
// timeline.java
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// (C) 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 27.02.2009 on http://yacy.net
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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: 2009-02-10 01:06:59 +0100 (Di, 10 Feb 2009) $
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// $LastChangedRevision: 5586 $
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// $LastChangedBy: orbiter $
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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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import java.util.Date;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.TreeSet;
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import de.anomic.http.httpRequestHeader;
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import de.anomic.kelondro.text.ReferenceContainer;
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import de.anomic.kelondro.text.referencePrototype.WordReference;
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import de.anomic.kelondro.util.DateFormatter;
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import de.anomic.plasma.plasmaSearchQuery;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.plasma.plasmaWordIndex;
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import de.anomic.plasma.parser.Word;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.tools.iso639;
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import de.anomic.yacy.yacyCore;
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public final class timeline {
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public static serverObjects respond(final httpRequestHeader header, final serverObjects post, final serverSwitch<?> env) {
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// return variable that accumulates replacements
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final plasmaSwitchboard sb = (plasmaSwitchboard) env;
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final serverObjects prop = new serverObjects();
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if ((post == null) || (env == null)) return prop;
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final boolean authenticated = sb.adminAuthenticated(header) >= 2;
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final String querystring = post.get("query", ""); // a string of word hashes that shall be searched and combined
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final int count = Math.min((authenticated) ? 1000 : 10, post.getInt("maximumRecords", 1000)); // SRU syntax
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final int maxdist= post.getInt("maxdist", Integer.MAX_VALUE);
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String language = post.get("language", "");
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if (!iso639.exists(language)) {
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// take language from the user agent
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String agent = header.get("User-Agent");
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if (agent == null) agent = System.getProperty("user.language");
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language = (agent == null) ? "en" : iso639.userAgentLanguageDetection(agent);
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if (language == null) language = "en";
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}
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final TreeSet<String>[] query = plasmaSearchQuery.cleanQuery(querystring); // converts also umlaute
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TreeSet<byte[]> q = Word.words2hashes(query[0]);
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// tell all threads to do nothing for a specific time
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sb.intermissionAllThreads(3000);
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// prepare search
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final long timestamp = System.currentTimeMillis();
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// prepare an abstract result
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int indexabstractContainercount = 0;
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int joincount = 0;
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// retrieve index containers
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//yacyCore.log.logInfo("INIT TIMELINE SEARCH: " + plasmaSearchQuery.anonymizedQueryHashes(query[0]) + " - " + count + " links");
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// get the index container with the result vector
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HashMap<byte[], ReferenceContainer<WordReference>>[] localSearchContainerMaps = sb.webIndex.localSearchContainers(q, Word.words2hashes(query[1]), null);
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final ReferenceContainer<WordReference> index =
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ReferenceContainer.joinExcludeContainers(
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plasmaWordIndex.wordReferenceFactory,
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localSearchContainerMaps[0].values(),
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localSearchContainerMaps[1].values(),
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maxdist);
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Iterator<WordReference> i = index.entries();
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WordReference entry;
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int c = 0;
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Date lm;
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String lms;
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while (i.hasNext() && c < count) {
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entry = i.next();
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lm = new Date(entry.lastModified());
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lms = DateFormatter.formatANSIC(lm);
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prop.put("event_" + c + "_start", lms); // like "Wed May 01 1963 00:00:00 GMT-0600"
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prop.put("event_" + c + "_end", lms); // like "Sat Jun 01 1963 00:00:00 GMT-0600"
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prop.put("event_" + c + "_isDuration", 0); // 0 (only a point) or 1 (period of time)
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prop.putHTML("event_" + c + "_title", "test"); // short title of the event
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prop.putHTML("event_" + c + "_description", ""); // long description of the event
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c++;
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}
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prop.put("event", c);
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// log
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yacyCore.log.logInfo("EXIT TIMELINE SEARCH: " +
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plasmaSearchQuery.anonymizedQueryHashes(q) + " - " + joincount + " links found, " +
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prop.get("linkcount", "?") + " links selected, " +
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indexabstractContainercount + " index abstracts, " +
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(System.currentTimeMillis() - timestamp) + " milliseconds");
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return prop;
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}
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}
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