git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4412 6c8d7289-2bf4-0310-a012-ef5d649a1542pull/1/head
orbiter
17 years ago
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4a80902081
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// ScreenSaver.java
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// -----------------------
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// part of YaCy
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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, 2006
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//
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// This File is contributed by Martin Thelian
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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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import java.io.BufferedReader;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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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.plasmaSwitchboardQueue;
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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 class ScreenSaver {
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/**
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* Generates a proxy-autoconfig-file (application/x-ns-proxy-autoconfig)
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* See: <a href="http://wp.netscape.com/eng/mozilla/2.0/relnotes/demo/proxy-live.html">Proxy Auto-Config File Format</a>
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* @param header the complete HTTP header of the request
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* @param post any arguments for this servlet, the request carried with (GET as well as POST)
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* @param env the serverSwitch object holding all runtime-data
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* @return the rewrite-properties for the template
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*/
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
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plasmaSwitchboard sb = (plasmaSwitchboard)env;
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boolean localCrawlStarted = false;
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boolean remoteTriggeredCrawlStarted = false;
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boolean globalCrawlTriggerStarted = false;
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try {
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InputStream input = (InputStream) header.get("INPUTSTREAM");
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OutputStream output = (OutputStream) header.get("OUTPUTSTREAM");
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String line = null;
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BufferedReader inputReader = new BufferedReader(new InputStreamReader(input));
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PrintWriter outputWriter = new PrintWriter(output);
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while ((line = inputReader.readLine()) != null) {
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yacyCore.peerActions.updateMySeed();
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if (line.equals("")) {
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continue;
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} else if (line.startsWith("PPM")) {
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String currentPPM = yacyCore.seedDB.mySeed().get(yacySeed.ISPEED, "-1");
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outputWriter.println(currentPPM);
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} else if (line.startsWith("LINKS")) {
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String currentLinks = yacyCore.seedDB.mySeed().get(yacySeed.LCOUNT, "-1");
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outputWriter.println(currentLinks);
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} else if (line.startsWith("WORDS")) {
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String currentWords = yacyCore.seedDB.mySeed().get(yacySeed.ICOUNT, "-1");
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outputWriter.println(currentWords);
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} else if (line.equals("CURRENTURL")) {
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String currentURL = "";
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ArrayList entryList = new ArrayList();
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synchronized (sb.indexingTasksInProcess) {
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if (sb.indexingTasksInProcess.size() > 0) {
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entryList.addAll(sb.indexingTasksInProcess.values());
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}
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}
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if (entryList.size() > 0) {
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plasmaSwitchboardQueue.Entry pcentry = (plasmaSwitchboardQueue.Entry) entryList.get(0);
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currentURL = pcentry.url().toString();
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}
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outputWriter.println(currentURL);
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} else if (line.equals("CONTINUECRAWLING")) {
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if (sb.crawlJobIsPaused(plasmaSwitchboard.CRAWLJOB_LOCAL_CRAWL)) {
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localCrawlStarted = true;
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sb.continueCrawlJob(plasmaSwitchboard.CRAWLJOB_LOCAL_CRAWL);
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}
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if (sb.crawlJobIsPaused(plasmaSwitchboard.CRAWLJOB_REMOTE_TRIGGERED_CRAWL)) {
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remoteTriggeredCrawlStarted = true;
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sb.continueCrawlJob(plasmaSwitchboard.CRAWLJOB_REMOTE_TRIGGERED_CRAWL);
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}
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if (sb.crawlJobIsPaused(plasmaSwitchboard.CRAWLJOB_REMOTE_CRAWL_LOADER)) {
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globalCrawlTriggerStarted = true;
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sb.continueCrawlJob(plasmaSwitchboard.CRAWLJOB_REMOTE_CRAWL_LOADER);
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}
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} else if (line.equals("EXIT")) {
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outputWriter.println("OK");
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outputWriter.flush();
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return null;
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} else {
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outputWriter.println("Unknown command");
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}
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outputWriter.flush();
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}
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return null;
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} catch (Exception e) {
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return null;
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} finally {
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if (localCrawlStarted) {
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sb.pauseCrawlJob(plasmaSwitchboard.CRAWLJOB_LOCAL_CRAWL);
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}
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if (remoteTriggeredCrawlStarted) {
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sb.pauseCrawlJob(plasmaSwitchboard.CRAWLJOB_REMOTE_TRIGGERED_CRAWL);
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}
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if (globalCrawlTriggerStarted) {
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sb.pauseCrawlJob(plasmaSwitchboard.CRAWLJOB_REMOTE_CRAWL_LOADER);
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}
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}
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}
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}
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