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106 lines
5.5 KiB
106 lines
5.5 KiB
// search.java
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// -----------------------
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// part of the AnomicHTTPD caching proxy
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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// You must compile this file with
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// javac -classpath .:../../Classes search.java
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// if the shell's current path is htroot/yacy
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import java.util.HashSet;
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import de.anomic.http.httpHeader;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.plasma.plasmaWordIndexEntry;
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import de.anomic.plasma.plasmaSearchQuery;
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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.yacy.yacyCore;
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import de.anomic.yacy.yacySeed;
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public final class search {
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch ss) {
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if (post == null || ss == null) { return null; }
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// return variable that accumulates replacements
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final plasmaSwitchboard sb = (plasmaSwitchboard) ss;
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serverObjects prop = new serverObjects();
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if (prop == null || sb == null) { return null; }
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//System.out.println("yacy: search received request = " + post.toString());
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final String oseed = (String) post.get("myseed", ""); // complete seed of the requesting peer
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// final String youare = (String) post.get("youare", ""); // seed hash of the target peer, used for testing network stability
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final String key = (String) post.get("key", ""); // transmission key for response
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final String query = (String) post.get("query", ""); // a string of word hashes
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// final String fwdep = (String) post.get("fwdep", ""); // forward depth. if "0" then peer may NOT ask another peer for more results
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// final String fwden = (String) post.get("fwden", ""); // forward deny, a list of seed hashes. They may NOT be target of forward hopping
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final long duetime= Long.parseLong((String) post.get("duetime", "3000"));
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final int count = Integer.parseInt((String) post.get("count", "10")); // maximum number of wanted results
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final boolean global = ((String) post.get("resource", "global")).equals("global"); // if true, then result may consist of answers from other peers
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// Date remoteTime = yacyCore.parseUniversalDate((String) post.get(yacySeed.MYTIME)); // read remote time
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if (yacyCore.seedDB == null) {
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yacyCore.log.logSevere("yacy.search: seed cache not initialized");
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} else {
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yacyCore.peerActions.peerArrival(yacySeed.genRemoteSeed(oseed, key), true);
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}
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final HashSet keyhashes = new HashSet(query.length() / plasmaWordIndexEntry.wordHashLength);
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for (int i = 0; i < (query.length() / plasmaWordIndexEntry.wordHashLength); i++) {
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keyhashes.add(query.substring(i * plasmaWordIndexEntry.wordHashLength, (i + 1) * plasmaWordIndexEntry.wordHashLength));
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}
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final long timestamp = System.currentTimeMillis();
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plasmaSearchQuery squery = new plasmaSearchQuery(keyhashes, new String[]{plasmaSearchQuery.ORDER_QUALITY, plasmaSearchQuery.ORDER_DATE},
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count, duetime, ".*");
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prop = sb.searchFromRemote(squery);
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prop.put("searchtime", Long.toString(System.currentTimeMillis() - timestamp));
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final int links = Integer.parseInt(prop.get("linkcount","0"));
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yacyCore.seedDB.mySeed.incSI(links);
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yacyCore.seedDB.mySeed.incSU(links);
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return prop;
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}
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} |