mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
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
469 lines
22 KiB
Java
469 lines
22 KiB
Java
// yacyVersion.java
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// ----------------
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// (C) 2007 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
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// first published 27.04.2007 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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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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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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package de.anomic.yacy;
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import java.io.File;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import java.util.ArrayList;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.TreeSet;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.http.httpc;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverCore;
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import de.anomic.server.serverSystem;
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import de.anomic.server.logging.serverLog;
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public final class yacyVersion implements Comparator, Comparable {
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// general release info
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public static final float YACY_SUPPORTS_PORT_FORWARDING = (float) 0.383;
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public static final float YACY_SUPPORTS_GZIP_POST_REQUESTS = (float) 0.40300772;
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public static final float YACY_ACCEPTS_RANKING_TRANSMISSION = (float) 0.414;
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public static final float YACY_HANDLES_COLLECTION_INDEX = (float) 0.486;
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public static final float YACY_PROVIDES_CRAWLS_VIA_LIST_HTML = (float) 0.50403367;
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// information about latest release, retrieved by other peers release version
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public static double latestRelease = 0.1; // this value is overwritten when a peer with later version appears
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// information about latest release, retrieved from download pages
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// this static information should be overwritten by network-specific locations
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// for details see yacy.network.unit
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private static HashMap /* URL:TreeSet[]*/ latestReleases = new HashMap();
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public static ArrayList latestReleaseLocations /*string*/ = new ArrayList(); // will be initialized with value in yacy.network.unit
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// private static release info about this release; is generated only once and can be retrieved by thisVersion()
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private static yacyVersion thisVersion = null;
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// class variables
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public float releaseNr;
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public String dateStamp;
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public int svn;
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public boolean proRelease, mainRelease;
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public yacyURL url;
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public String name;
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public yacyVersion(yacyURL url) {
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this(url.getFileName());
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this.url = url;
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}
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public yacyVersion(String release) {
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// parse a release file name
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// the have the following form:
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// yacy_dev_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
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// yacy_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
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// i.e. yacy_v0.51_20070321_3501.tar.gz
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this.url = null;
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this.name = release;
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if ((release == null) || (!release.endsWith(".tar.gz"))) {
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throw new RuntimeException("release file name '" + release + "' is not valid, no tar.gz");
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}
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// cut off tail
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release = release.substring(0, release.length() - 7);
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if (release.startsWith("yacy_pro_v")) {
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proRelease = true;
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release = release.substring(10);
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} else if (release.startsWith("yacy_v")) {
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proRelease = false;
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release = release.substring(6);
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} else {
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throw new RuntimeException("release file name '" + release + "' is not valid, wrong prefix");
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}
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// now all release names have the form
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// ${releaseVersion}_${DSTAMP}_${releaseNr}
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String[] comp = release.split("_"); // should be 3 parts
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if (comp.length != 3) {
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throw new RuntimeException("release file name '" + release + "' is not valid, 3 information parts expected");
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}
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try {
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this.releaseNr = Float.parseFloat(comp[0]);
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} catch (NumberFormatException e) {
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throw new RuntimeException("release file name '" + release + "' is not valid, '" + comp[0] + "' should be a float number");
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}
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this.mainRelease = ((int) (this.releaseNr * (float) 1000)) % 10 == 0;
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//System.out.println("Release version " + this.releaseNr + " is " + ((this.mainRelease) ? "main" : "std"));
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this.dateStamp = comp[1];
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if (this.dateStamp.length() != 8) {
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throw new RuntimeException("release file name '" + release + "' is not valid, '" + comp[1] + "' should be a 8-digit date string");
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}
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try {
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this.svn = Integer.parseInt(comp[2]);
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} catch (NumberFormatException e) {
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throw new RuntimeException("release file name '" + release + "' is not valid, '" + comp[2] + "' should be a integer number");
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}
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// finished! we parsed a relase string
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}
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public int compareTo(Object obj) {
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// returns 0 if this object is equal to the obj, -1 if this is smaller than obj and 1 if this is greater than obj
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yacyVersion v = (yacyVersion) obj;
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return compare(this, v);
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}
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public int compare(Object arg0, Object arg1) {
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// compare-operator for two yacyVersion objects
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// must be implemented to make it possible to put this object into
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// a ordered structure, like TreeSet or TreeMap
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yacyVersion a0 = (yacyVersion) arg0, a1 = (yacyVersion) arg1;
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return (new Integer(a0.svn)).compareTo(new Integer(a1.svn));
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}
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public boolean equals(Object obj) {
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yacyVersion v = (yacyVersion) obj;
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return (this.svn == v.svn) && (this.url.toNormalform(true, true).equals(v.url.toNormalform(true, true)));
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}
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public int hashCode() {
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return this.url.toNormalform(true, true).hashCode();
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}
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public String toAnchor() {
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// generates an anchor string that can be used to embed in an html for direct download
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return "<a href=" + this.url.toNormalform(true, true) + ">YaCy " + ((this.proRelease) ? "pro release" : "standard release") + " v" + this.releaseNr + ", SVN " + this.svn + "</a>";
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}
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// static methods:
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public static final yacyVersion thisVersion() {
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// construct a virtual release name for this release
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if (thisVersion == null) {
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plasmaSwitchboard sb = plasmaSwitchboard.getSwitchboard();
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boolean pro = new File(sb.getRootPath(), "libx").exists();
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thisVersion = new yacyVersion(
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"yacy" + ((pro) ? "_pro" : "") +
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"_v" + sb.getConfig("version", "0.1") + "_" +
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sb.getConfig("vdate", "19700101") + "_" +
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sb.getConfig("svnRevision", "0") + ".tar.gz");
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}
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return thisVersion;
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}
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public static final yacyVersion rulebasedUpdateInfo(boolean manual) {
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// according to update properties, decide if we should retrieve update information
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// if true, the release that can be obtained is returned.
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// if false, null is returned
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plasmaSwitchboard sb = plasmaSwitchboard.getSwitchboard();
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// check if update process allowes update retrieve
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String process = sb.getConfig("update.process", "manual");
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if ((!manual) && (!process.equals("auto"))) {
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yacyCore.log.logInfo("rulebasedUpdateInfo: not an automatic update selected");
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return null; // no, its a manual or guided process
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}
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// check if the last retrieve time is a minimum time ago
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long cycle = Math.max(1, sb.getConfigLong("update.cycle", 168)) * 60 * 60 * 1000; // update.cycle is hours
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long timeLookup = sb.getConfigLong("update.time.lookup", System.currentTimeMillis());
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if ((!manual) && (timeLookup + cycle > System.currentTimeMillis())) {
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yacyCore.log.logInfo("rulebasedUpdateInfo: too early for a lookup for a new release (timeLookup = " + timeLookup + ", cycle = " + cycle + ", now = " + System.currentTimeMillis() + ")");
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return null; // no we have recently made a lookup
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}
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// check if we know that there is a release that is more recent than that which we are using
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TreeSet[] releasess = yacyVersion.allReleases(true); // {0=promain, 1=prodev, 2=stdmain, 3=stddev}
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boolean pro = new File(sb.getRootPath(), "libx").exists();
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yacyVersion latestmain = (releasess[(pro) ? 0 : 2].size() == 0) ? null : (yacyVersion) releasess[(pro) ? 0 : 2].last();
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yacyVersion latestdev = (releasess[(pro) ? 1 : 3].size() == 0) ? null : (yacyVersion) releasess[(pro) ? 1 : 3].last();
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String concept = sb.getConfig("update.concept", "any");
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String blacklist = sb.getConfig("update.blacklist", ".\\...[123]");
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if ((manual) || (concept.equals("any"))) {
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// return a dev-release or a main-release
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if ((latestdev != null) &&
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((latestmain == null) || (latestdev.compareTo(latestmain) > 0)) &&
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(!(Float.toString(latestdev.releaseNr).matches(blacklist)))) {
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// consider a dev-release
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if (latestdev.compareTo(thisVersion()) > 0) {
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return latestdev;
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} else {
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yacyCore.log.logInfo(
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"rulebasedUpdateInfo: latest dev " + latestdev.name +
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" is not more recent than installed release " + thisVersion().name);
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return null;
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}
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}
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if (latestmain != null) {
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// consider a main release
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if ((Float.toString(latestmain.releaseNr).matches(blacklist))) {
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yacyCore.log.logInfo(
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"rulebasedUpdateInfo: latest dev " + latestdev.name +
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" matches with blacklist '" + blacklist + "'");
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return null;
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}
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if (latestmain.compareTo(thisVersion()) > 0) return latestmain; else {
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yacyCore.log.logInfo(
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"rulebasedUpdateInfo: latest main " + latestmain.name +
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" is not more recent than installed release (1) " + thisVersion().name);
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return null;
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}
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}
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}
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if ((concept.equals("main")) && (latestmain != null)) {
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// return a main-release
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if ((Float.toString(latestmain.releaseNr).matches(blacklist))) {
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yacyCore.log.logInfo(
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"rulebasedUpdateInfo: latest main " + latestmain.name +
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" matches with blacklist'" + blacklist + "'");
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return null;
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}
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if (latestmain.compareTo(thisVersion()) > 0) return latestmain; else {
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yacyCore.log.logInfo(
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"rulebasedUpdateInfo: latest main " + latestmain.name +
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" is not more recent than installed release (2) " + thisVersion().name);
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return null;
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}
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}
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yacyCore.log.logInfo("rulebasedUpdateInfo: failed to find more recent release");
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return null;
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}
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public static TreeSet[] allReleases(boolean force) {
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// join the release infos
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// {promainreleases, prodevreleases, stdmainreleases, stddevreleases}
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Object[] a = new Object[latestReleaseLocations.size()];
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for (int j = 0; j < latestReleaseLocations.size(); j++) {
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a[j] = getReleases((yacyURL) latestReleaseLocations.get(j), force);
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}
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TreeSet[] r = new TreeSet[4];
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TreeSet s;
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for (int i = 0; i < 4; i++) {
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s = new TreeSet();
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for (int j = 0; j < a.length; j++) {
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if ((a[j] != null) && (((TreeSet[]) a[j])[i] != null)) s.addAll(((TreeSet[]) a[j])[i]);
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}
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r[i] = s;
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}
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return r;
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}
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private static TreeSet[] getReleases(yacyURL location, boolean force) {
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// get release info from a internet resource
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// {promainreleases, prodevreleases, stdmainreleases, stddevreleases}
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TreeSet[] latestRelease = (TreeSet[]) latestReleases.get(location);
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if (force ||
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(latestRelease == null) /*||
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((latestRelease[0].size() == 0) &&
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(latestRelease[1].size() == 0) &&
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(latestRelease[2].size() == 0) &&
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(latestRelease[3].size() == 0) )*/) {
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latestRelease = allReleaseFrom(location);
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latestReleases.put(location, latestRelease);
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}
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return latestRelease;
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}
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private static TreeSet[] allReleaseFrom(yacyURL url) {
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// retrieves the latest info about releases
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// this is done by contacting a release location,
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// parsing the content and filtering+parsing links
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// returns the version info if successful, null otherwise
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htmlFilterContentScraper scraper;
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try {
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scraper = htmlFilterContentScraper.parseResource(url);
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} catch (IOException e) {
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return null;
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}
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// analyse links in scraper resource, and find link to latest release in it
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Map anchors = scraper.getAnchors(); // a url (String) / name (String) relation
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Iterator i = anchors.keySet().iterator();
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TreeSet stddevreleases = new TreeSet();
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TreeSet prodevreleases = new TreeSet();
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TreeSet stdmainreleases = new TreeSet();
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TreeSet promainreleases = new TreeSet();
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yacyVersion release;
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while (i.hasNext()) {
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try {
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url = new yacyURL((String) i.next(), null);
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} catch (MalformedURLException e1) {
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continue; // just ignore invalid urls
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}
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try {
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release = new yacyVersion(url);
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//System.out.println("r " + release.toAnchor());
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if ( release.proRelease && release.mainRelease) promainreleases.add(release);
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if ( release.proRelease && !release.mainRelease) prodevreleases.add(release);
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if (!release.proRelease && release.mainRelease) stdmainreleases.add(release);
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if (!release.proRelease && !release.mainRelease) stddevreleases.add(release);
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} catch (RuntimeException e) {
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// the release string was not well-formed.
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// that might have been another link
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// just dont care
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continue;
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}
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}
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plasmaSwitchboard.getSwitchboard().setConfig("update.time.lookup", System.currentTimeMillis());
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return new TreeSet[] {promainreleases, prodevreleases, stdmainreleases, stddevreleases} ;
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}
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public static void downloadRelease(yacyVersion release) throws IOException {
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File storagePath = plasmaSwitchboard.getSwitchboard().releasePath;
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// load file
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File download = new File(storagePath, release.url.getFileName());
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httpc.wget(
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release.url,
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release.url.getHost(),
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300000,
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null,
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null,
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plasmaSwitchboard.getSwitchboard().remoteProxyConfig,
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null,
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download
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);
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if ((!download.exists()) || (download.length() == 0)) throw new IOException("wget of url " + release.url + " failed");
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plasmaSwitchboard.getSwitchboard().setConfig("update.time.download", System.currentTimeMillis());
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}
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public static void restart() {
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plasmaSwitchboard sb = plasmaSwitchboard.getSwitchboard();
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if (System.getProperty("os.name").toLowerCase().startsWith("win")) {
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// create yacy.restart file which is used in Windows startscript
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final File yacyRestart = new File(sb.getRootPath(), "DATA/yacy.restart");
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if (!yacyRestart.exists()) {
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try {
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yacyRestart.createNewFile();
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plasmaSwitchboard.getSwitchboard().terminate(5000);
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} catch (IOException e) {
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serverLog.logSevere("SHUTDOWN", "restart failed", e);
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}
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}
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}
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if (serverSystem.canExecUnix) {
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// start a re-start daemon
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try {
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serverLog.logInfo("RESTART", "INITIATED");
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String script =
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"#!/bin/sh" + serverCore.lfstring +
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"cd " + sb.getRootPath() + "/DATA/RELEASE/" + serverCore.lfstring +
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"while [ -f ../yacy.running ]; do" + serverCore.lfstring +
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"sleep 1" + serverCore.lfstring +
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"done" + serverCore.lfstring +
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"cd ../../" + serverCore.lfstring +
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"nohup ./startYACY.sh > /dev/null" + serverCore.lfstring;
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File scriptFile = new File(sb.getRootPath(), "DATA/RELEASE/restart.sh");
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serverSystem.deployScript(scriptFile, script);
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serverLog.logInfo("RESTART", "wrote restart-script to " + scriptFile.getAbsolutePath());
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serverSystem.execAsynchronous(scriptFile);
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serverLog.logInfo("RESTART", "script is running");
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sb.terminate(5000);
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} catch (IOException e) {
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serverLog.logSevere("RESTART", "restart failed", e);
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}
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}
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}
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public static void deployRelease(String release) {
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//byte[] script = ("cd " + plasmaSwitchboard.getSwitchboard().getRootPath() + ";while [ -e ../yacy.running ]; do sleep 1;done;tar xfz " + release + ";cp -Rf yacy/* ../../;rm -Rf yacy;cd ../../;startYACY.sh").getBytes();
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try {
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plasmaSwitchboard sb = plasmaSwitchboard.getSwitchboard();
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serverLog.logInfo("UPDATE", "INITIATED");
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String script =
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"#!/bin/sh" + serverCore.lfstring +
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"cd " + sb.getRootPath() + "/DATA/RELEASE/" + serverCore.lfstring +
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"gunzip -c " + release + " | tar xf -" + serverCore.lfstring +
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"while [ -f ../yacy.running ]; do" + serverCore.lfstring +
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"sleep 1" + serverCore.lfstring +
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"done" + serverCore.lfstring +
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"cp -Rf yacy/* ../../" + serverCore.lfstring +
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"rm -Rf yacy" + serverCore.lfstring +
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"cd ../../" + serverCore.lfstring +
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"nohup ./startYACY.sh > /dev/null" + serverCore.lfstring;
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File scriptFile = new File(sb.getRootPath(), "DATA/RELEASE/update.sh");
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serverSystem.deployScript(scriptFile, script);
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serverLog.logInfo("UPDATE", "wrote update-script to " + scriptFile.getAbsolutePath());
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serverSystem.execAsynchronous(scriptFile);
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serverLog.logInfo("UPDATE", "script is running");
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sb.setConfig("update.time.deploy", System.currentTimeMillis());
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sb.terminate(5000);
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} catch (IOException e) {
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serverLog.logSevere("UPDATE", "update failed", e);
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}
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}
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/**
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* Converts combined version-string to a pretty string, e.g. "0.435/01818" or "dev/01818" (development version) or "dev/00000" (in case of wrong input)
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*
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* @param ver Combined version string matching regular expression: "\A(\d+\.\d{3})(\d{4}|\d{5})\z" <br>
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* (i.e.: start of input, 1 or more digits in front of decimal point, decimal point followed by 3 digits as major version, 4 or 5 digits for SVN-Version, end of input)
|
|
* @return If the major version is < 0.11 - major version is separated from SVN-version by '/', e.g. "0.435/01818" <br>
|
|
* If the major version is >= 0.11 - major version is replaced by "dev" and separated SVN-version by '/', e.g."dev/01818" <br>
|
|
* "dev/00000" - If the input does not matcht the regular expression above
|
|
*/
|
|
public static String combined2prettyVersion(String ver) {
|
|
return combined2prettyVersion(ver, "");
|
|
}
|
|
public static String combined2prettyVersion(String ver, String computerName) {
|
|
final Matcher matcher = Pattern.compile("\\A(\\d+\\.\\d{1,3})(\\d{0,5})\\z").matcher(ver);
|
|
|
|
if (!matcher.find()) {
|
|
serverLog.logWarning("STARTUP", "Peer '"+computerName+"': wrong format of version-string: '" + ver + "'. Using default string 'dev/00000' instead");
|
|
return "dev/00000";
|
|
}
|
|
|
|
String mainversion = (Double.parseDouble(matcher.group(1)) < 0.11 ? "dev" : matcher.group(1));
|
|
String revision = matcher.group(2);
|
|
for(int i=revision.length();i<5;++i) revision += "0";
|
|
return mainversion+"/"+revision;
|
|
}
|
|
|
|
/**
|
|
* Combines the version of YaCy with the versionnumber from SVN to a
|
|
* combined version
|
|
*
|
|
* @param version Current given version.
|
|
* @param svn Current version given from SVN.
|
|
* @return String with the combined version.
|
|
*/
|
|
public static double versvn2combinedVersion(double v, int svn) {
|
|
return (Math.rint((v*100000000.0) + ((double)svn))/100000000);
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
float base = (float) 0.53;
|
|
String blacklist = "....[123]";
|
|
String test;
|
|
for (int i = 0; i < 20; i++) {
|
|
test = Float.toString(base + (((float) i) / 1000));
|
|
System.out.println(test + " is " + ((test.matches(blacklist)) ? "blacklisted" : " not blacklisted"));
|
|
}
|
|
}
|
|
|
|
}
|