mirror of
https://github.com/yacy/yacy_search_server.git
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daf0f74361
search profiling showed, that a major amount of time is wasted by computing url hashes. The computation does an intranet-check, which needs a DNS lookup. This caused that each urlhash computation needed 100-200 milliseconds, which caused remote searches to delay at least 1 second more that necessary. The solution to this problem is to attach a URL hash to the URL data structure, because that means that the url hash value can be filled after retrieval of the URL from the database. The redesign of the url/urlhash management caused a major redesign of many parts of the software. Since some parts had been decided to be given up they had been removed during this change to avoid unnecessary maintenance of unused code. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4074 6c8d7289-2bf4-0310-a012-ef5d649a1542
122 lines
4.6 KiB
Java
122 lines
4.6 KiB
Java
//plasmaCrawlLoaderMessage.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, 2004
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//last major change: 21.04.2005 by Martin Thelian
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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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package de.anomic.plasma;
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import de.anomic.server.serverSemaphore;
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import de.anomic.yacy.yacyURL;
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public final class plasmaCrawlLoaderMessage {
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public final int crawlingPriority;
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public final yacyURL url;
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public final String name;
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public final String referer;
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public final String initiator;
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public final int depth;
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public final plasmaCrawlProfile.entry profile;
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public final boolean acceptAllContent;
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public final int timeout;
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public final boolean keepInMemory;
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private serverSemaphore resultSync = null;
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private plasmaHTCache.Entry result;
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private String errorMessage;
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// loadParallel(URL url, String referer, String initiator, int depth, plasmaCrawlProfile.entry profile) {
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public plasmaCrawlLoaderMessage(
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yacyURL url,
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String name, // the name of the url, from anchor tag <a>name</a>
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String referer,
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String initiator,
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int depth,
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plasmaCrawlProfile.entry profile,
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int crawlingPriority,
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boolean acceptAllContent,
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int timeout,
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boolean keepInMemory
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) {
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this.url = url;
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this.name = name;
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this.referer = referer;
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this.initiator = initiator;
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this.depth = depth;
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this.profile = profile;
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this.crawlingPriority = crawlingPriority;
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this.acceptAllContent = acceptAllContent;
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this.timeout = timeout;
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this.keepInMemory = keepInMemory;
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this.resultSync = new serverSemaphore(0);
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this.result = null;
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}
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public void setError(String errorMessage) {
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this.errorMessage = errorMessage;
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}
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public String getError() {
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return this.errorMessage;
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}
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public void setResult(plasmaHTCache.Entry theResult) {
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// store the result
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this.result = theResult;
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// notify blocking result readers
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this.resultSync.V();
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}
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public plasmaHTCache.Entry waitForResult() throws InterruptedException {
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plasmaHTCache.Entry theResult = null;
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this.resultSync.P();
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/* =====> CRITICAL SECTION <======== */
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theResult = this.result;
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/* =====> CRITICAL SECTION <======== */
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this.resultSync.V();
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return theResult;
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}
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} |