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// yacysearch_location.java
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// -----------------------
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// (C) 2010 by Michael Peter Christen; mc@yacy.net
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// first published 09.05.2010 in Frankfurt, Germany on http://yacy.net
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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.HashSet;
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import java.util.Set;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.TimeUnit;
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import net.yacy.document.content.RSSMessage;
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import net.yacy.document.geolocalization.Location;
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import de.anomic.data.LibraryProvider;
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import de.anomic.http.server.HeaderFramework;
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import de.anomic.http.server.RequestHeader;
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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.yacyClient;
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public class yacysearch_location {
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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//final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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prop.put("kml", 0);
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if (post == null) return prop;
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if (header.get(HeaderFramework.CONNECTION_PROP_EXT, "").equals("kml") || header.get(HeaderFramework.CONNECTION_PROP_EXT, "").equals("xml")) {
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// generate a kml output page
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prop.put("kml", 1);
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String query = post.get("query", "");
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long maximumTime = post.getLong("maximumTime", 1000);
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int maximumRecords = post.getInt("maximumRecords", 100);
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//i.e. http://localhost:8080/yacysearch_location.kml?query=berlin&maximumTime=2000&maximumRecords=100
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// get a queue of search results
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BlockingQueue<RSSMessage> results = yacyClient.search(null, query, false, false, maximumTime, Integer.MAX_VALUE);
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// take the results and compute some locations
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RSSMessage message;
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int placemarkCounter = 0;
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try {
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loop: while ((message = results.poll(maximumTime, TimeUnit.MILLISECONDS)) != RSSMessage.POISON) {
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// find all associated locations
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Set<Location> locations = new HashSet<Location>();
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String words = message.getTitle() + " " + message.getCopyright() + " " + message.getAuthor();
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String subject = "";
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for (String s: message.getSubject()) subject += " " + s;
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words += subject;
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for (String word: words.split(" ")) if (word.length() >= 3) locations.addAll(LibraryProvider.geoDB.find(word, true, true, false, false, false));
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String locnames = "";
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for (Location location: locations) locnames += ", " + location.getName();
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if (locations.size() > 0) locnames = locnames.substring(2);
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for (Location location: locations) {
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// write for all locations a point to this message
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prop.put("kml_placemark_" + placemarkCounter + "_location", locnames);
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prop.put("kml_placemark_" + placemarkCounter + "_name", message.getTitle());
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prop.put("kml_placemark_" + placemarkCounter + "_author", message.getAuthor());
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prop.put("kml_placemark_" + placemarkCounter + "_copyright", message.getCopyright());
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prop.put("kml_placemark_" + placemarkCounter + "_subject", subject.trim());
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prop.put("kml_placemark_" + placemarkCounter + "_description", message.getDescription());
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prop.put("kml_placemark_" + placemarkCounter + "_date", message.getPubDate());
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prop.put("kml_placemark_" + placemarkCounter + "_url", message.getLink());
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prop.put("kml_placemark_" + placemarkCounter + "_pointname", location.getName());
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prop.put("kml_placemark_" + placemarkCounter + "_lon", location.lon());
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prop.put("kml_placemark_" + placemarkCounter + "_lat", location.lat());
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placemarkCounter++;
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if (placemarkCounter >= maximumRecords) break loop;
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}
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}
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prop.put("kml_placemark", placemarkCounter);
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} catch (InterruptedException e) {}
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}
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// return rewrite properties
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return prop;
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}
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}
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