mirror of
https://github.com/yacy/yacy_search_server.git
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4c013d9088
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7649 6c8d7289-2bf4-0310-a012-ef5d649a1542
563 lines
25 KiB
Java
563 lines
25 KiB
Java
// URLAnalysis.java
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// (C) 2009 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 24.02.2009 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.data;
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import java.io.BufferedInputStream;
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import java.io.BufferedOutputStream;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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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.net.MalformedURLException;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeMap;
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import java.util.TreeSet;
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import java.util.concurrent.ArrayBlockingQueue;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.regex.Pattern;
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import java.util.zip.GZIPInputStream;
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import java.util.zip.GZIPOutputStream;
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import net.yacy.cora.document.UTF8;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.data.meta.URIMetadataRow;
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import net.yacy.kelondro.data.word.WordReferenceRow;
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import net.yacy.kelondro.index.HandleMap;
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import net.yacy.kelondro.index.HandleSet;
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import net.yacy.kelondro.index.RowSpaceExceededException;
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import net.yacy.kelondro.logging.Log;
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import net.yacy.kelondro.order.Base64Order;
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import net.yacy.kelondro.rwi.ReferenceContainerArray;
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import net.yacy.kelondro.util.MemoryControl;
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import de.anomic.search.MetadataRepository;
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import de.anomic.search.Segment;
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import de.anomic.search.MetadataRepository.Export;
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public class URLAnalysis {
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private static final Pattern patternMinus = Pattern.compile("-");
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/**
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* processes to analyse URL lists
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*/
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private static DigestURI poison = null;
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static {
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try {
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poison = new DigestURI("http://poison.org/poison");
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} catch (MalformedURLException e) {
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poison = null;
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}
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}
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public static class splitter extends Thread {
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private ArrayBlockingQueue<DigestURI> in;
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private ConcurrentHashMap<String, Integer> out;
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public splitter(final ArrayBlockingQueue<DigestURI> in, final ConcurrentHashMap<String, Integer> out) {
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this.in = in;
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this.out = out;
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}
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@Override
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public void run() {
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try {
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DigestURI url;
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final Pattern p = Pattern.compile("~|\\(|\\)|\\+|-|@|:|%|\\.|;|_");
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while (true) {
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try {
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url = in.take();
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if (url == poison) break;
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update(patternMinus.matcher(url.getHost()).replaceAll("\\.").split("\\."));
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update(p.matcher(url.getPath()).replaceAll("/").split("/"));
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} catch (InterruptedException e) {
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Log.logException(e);
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}
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}
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} catch (Exception e) {
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Log.logException(e);
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}
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}
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private void update(final String[] s) {
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Integer c;
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for (final String t: s) {
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if (t.length() == 0) continue;
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c = out.get(t);
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out.put(t, (c == null) ? 1 : c.intValue() + 1);
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}
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}
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}
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public static void cleanup(final ConcurrentHashMap<String, Integer> stat) {
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Map.Entry<String, Integer> entry;
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int c, low = Integer.MAX_VALUE;
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Iterator<Map.Entry<String, Integer>> i = stat.entrySet().iterator();
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while (i.hasNext()) {
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entry = i.next();
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c = entry.getValue().intValue();
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if (c == 1) {
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i.remove();
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} else {
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if (c < low) low = c;
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}
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}
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i = stat.entrySet().iterator();
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while (i.hasNext()) {
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entry = i.next();
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c = entry.getValue().intValue();
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if (c == low) {
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i.remove();
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}
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}
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Runtime.getRuntime().gc();
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}
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public static void genstat(final String urlfile) {
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final boolean gz = urlfile.endsWith(".gz");
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final String analysis = (gz) ? urlfile.substring(0, urlfile.length() - 3) + ".stats.gz" : urlfile + ".stats";
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final long cleanuplimit = Math.max(50 * 1024 * 1024, MemoryControl.available() / 8);
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// start threads
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final ArrayBlockingQueue<DigestURI> in = new ArrayBlockingQueue<DigestURI>(1000);
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final ConcurrentHashMap<String, Integer> out = new ConcurrentHashMap<String, Integer>();
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for (int i = 0, available = Runtime.getRuntime().availableProcessors(); i < available; i++) new splitter(in, out).start();
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final splitter spl = new splitter(in, out);
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spl.start();
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// put urls in queue
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final File infile = new File(urlfile);
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final File outfile = new File(analysis);
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BufferedReader reader = null;
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long time = System.currentTimeMillis();
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long start = time;
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int count = 0;
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System.out.println("start processing");
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try {
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InputStream is = new BufferedInputStream(new FileInputStream(infile));
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if (gz) is = new GZIPInputStream(is);
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reader = new BufferedReader(new InputStreamReader(is));
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String line;
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while ((line = reader.readLine()) != null) {
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line = line.trim();
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if (line.length() > 0) {
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try {
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DigestURI url = new DigestURI(line);
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in.put(url);
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} catch (InterruptedException e) {
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Log.logException(e);
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} catch (MalformedURLException e) {
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continue;
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}
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}
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count++;
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if (System.currentTimeMillis() - time > 1000) {
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time = System.currentTimeMillis();
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System.out.println("processed " + count + " urls, " + (MemoryControl.available() / 1024 / 1024) + " mb left, " + count * 1000L / (time - start) + " url/second");
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if (MemoryControl.available() < cleanuplimit) {
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System.out.println("starting cleanup, " + out.size() + " entries in statistic");
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cleanup(out);
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System.out.println("finished cleanup, " + out.size() + " entries in statistic left, " + (MemoryControl.available() / 1024 / 1024) + " mb left");
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}
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}
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}
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reader.close();
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} catch (final IOException e) {
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Log.logException(e);
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} finally {
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if (reader != null) try { reader.close(); } catch (final Exception e) {}
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}
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// stop threads
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System.out.println("stopping threads");
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for (int i = 0, available = Runtime.getRuntime().availableProcessors() + 1; i < available; i++) try {
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in.put(poison);
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} catch (InterruptedException e) {
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Log.logException(e);
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}
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try {
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spl.join();
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} catch (InterruptedException e1) {
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Log.logException(e1);
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}
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// generate statistics
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System.out.println("start processing results");
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final TreeMap<String, Integer> results = new TreeMap<String, Integer>();
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count = 0;
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Map.Entry<String, Integer> entry;
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final Iterator<Map.Entry<String, Integer>> i = out.entrySet().iterator();
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while (i.hasNext()) {
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entry = i.next();
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results.put(num(entry.getValue().intValue() * (entry.getKey().length() - 1)) + " - " + entry.getKey(), entry.getValue());
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count++;
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i.remove(); // free memory
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if (System.currentTimeMillis() - time > 10000) {
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time = System.currentTimeMillis();
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System.out.println("processed " + count + " results, " + (MemoryControl.available() / 1024 / 1024) + " mb left");
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}
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}
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// write statistics
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System.out.println("start writing results");
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try {
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OutputStream os = new BufferedOutputStream(new FileOutputStream(outfile));
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if (gz) os = new GZIPOutputStream(os);
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count = 0;
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for (final Map.Entry<String, Integer> e: results.entrySet()) {
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os.write(UTF8.getBytes(e.getKey()));
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os.write(new byte[]{'\t'});
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os.write(UTF8.getBytes(Integer.toString(e.getValue())));
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os.write(new byte[]{'\n'});
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count++;
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if (System.currentTimeMillis() - time > 10000) {
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time = System.currentTimeMillis();
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System.out.println("wrote " + count + " lines.");
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}
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}
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os.close();
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} catch (IOException e) {
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Log.logException(e);
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}
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System.out.println("finished");
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}
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public static void genhost(final String urlfile) {
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final boolean gz = urlfile.endsWith(".gz");
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final String trunk = (gz) ? urlfile.substring(0, urlfile.length() - 3) + ".host" : urlfile + ".host";
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final HashSet<String> hosts = new HashSet<String>();
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final File infile = new File(urlfile);
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BufferedReader reader = null;
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long time = System.currentTimeMillis();
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final long start = time;
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int count = 0;
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System.out.println("start processing");
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try {
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InputStream is = new BufferedInputStream(new FileInputStream(infile));
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if (gz) is = new GZIPInputStream(is);
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reader = new BufferedReader(new InputStreamReader(is));
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String line;
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while ((line = reader.readLine()) != null) {
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line = line.trim();
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if (line.length() > 0) {
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try {
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DigestURI url = new DigestURI(line);
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hosts.add(url.getHost());
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} catch (MalformedURLException e) {
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continue;
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}
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}
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count++;
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if (System.currentTimeMillis() - time > 1000) {
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time = System.currentTimeMillis();
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System.out.println("processed " + count + " urls, " + (MemoryControl.available() / 1024 / 1024) + " mb left, " + count * 1000L / (time - start) + " url/second");
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}
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}
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reader.close();
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} catch (final IOException e) {
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Log.logException(e);
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} finally {
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if (reader != null) try { reader.close(); } catch (final Exception e) {}
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}
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// copy everything into a TreeSet to order it
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System.out.println("start processing results");
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final TreeSet<String> results = new TreeSet<String>();
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count = 0;
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final Iterator<String> i = hosts.iterator();
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while (i.hasNext()) {
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results.add(i.next());
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count++;
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i.remove(); // free memory
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if (System.currentTimeMillis() - time > 10000) {
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time = System.currentTimeMillis();
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System.out.println("processed " + count + " results, " + (MemoryControl.available() / 1024 / 1024) + " mb left");
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}
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}
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// write hosts
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writeSet(trunk, gz, results);
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System.out.println("finished");
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}
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private static void writeSet(final String trunk, final boolean gz, final Set<String> set) {
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// write hosts
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System.out.println("start writing results");
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File outfile = new File(trunk + ((gz) ? ".gz" : ""));
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long time = System.currentTimeMillis();
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try {
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OutputStream os = new BufferedOutputStream(new FileOutputStream(outfile));
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if (gz) os = new GZIPOutputStream(os);
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int count = 0;
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for (final String h: set) {
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os.write(UTF8.getBytes(h));
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os.write(new byte[]{'\n'});
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count++;
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if (System.currentTimeMillis() - time > 10000) {
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time = System.currentTimeMillis();
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System.out.println("wrote " + count + " lines.");
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}
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}
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os.close();
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} catch (IOException e) {
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Log.logException(e);
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}
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System.out.println("finished writing results");
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}
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public static void sortsplit(final String urlfile) {
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final boolean gz = urlfile.endsWith(".gz");
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final String trunk = ((gz) ? urlfile.substring(0, urlfile.length() - 3) : urlfile) + ".sort";
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final File infile = new File(urlfile);
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final TreeSet<String> urls = new TreeSet<String>();
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BufferedReader reader = null;
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long time = System.currentTimeMillis();
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final long start = time;
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int count = 0;
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int filecount = 0;
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final long cleanuplimit = Math.max(50 * 1024 * 1024, MemoryControl.available() / 8);
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System.out.println("start processing");
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try {
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InputStream is = new BufferedInputStream(new FileInputStream(infile));
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if (gz) is = new GZIPInputStream(is);
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reader = new BufferedReader(new InputStreamReader(is));
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String line;
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while ((line = reader.readLine()) != null) {
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line = line.trim();
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if (line.length() > 0) {
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try {
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DigestURI url = new DigestURI(line);
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urls.add(url.toNormalform(true, true));
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} catch (MalformedURLException e) {
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continue;
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}
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}
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count++;
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if (System.currentTimeMillis() - time > 1000) {
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time = System.currentTimeMillis();
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System.out.println("processed " + count + " urls, " + (MemoryControl.available() / 1024 / 1024) + " mb left, " + count * 1000L / (time - start) + " url/second");
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}
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if (MemoryControl.available() < cleanuplimit) {
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writeSet(trunk + "." + filecount, gz, urls);
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filecount++;
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urls.clear();
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Runtime.getRuntime().gc();
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}
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}
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reader.close();
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} catch (final IOException e) {
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Log.logException(e);
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} finally {
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if (reader != null) try { reader.close(); } catch (final Exception e) {}
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}
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// write hosts
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writeSet(trunk + "." + filecount, gz, urls);
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System.out.println("finished");
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}
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public static void incell(final File cellPath, final String statisticPath) {
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try {
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final HandleMap idx = ReferenceContainerArray.referenceHashes(
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cellPath,
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Segment.wordReferenceFactory,
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Base64Order.enhancedCoder,
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WordReferenceRow.urlEntryRow);
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System.out.println("INDEX REFERENCE COLLECTION starting dump of statistics");
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idx.dump(new File(statisticPath));
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System.out.println("INDEX REFERENCE COLLECTION finished dump, wrote " + idx.size() + " entries to " + statisticPath);
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idx.close();
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} catch (Exception e) {
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Log.logException(e);
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}
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}
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public static int diffurlcol(final String metadataPath, final String statisticFile, final String diffFile) throws IOException, RowSpaceExceededException {
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System.out.println("INDEX DIFF URL-COL startup");
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final HandleMap idx = new HandleMap(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, 4, new File(statisticFile));
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final MetadataRepository mr = new MetadataRepository(new File(metadataPath), "text.urlmd", false, false);
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final HandleSet hs = new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, 1000000);
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System.out.println("INDEX DIFF URL-COL loaded dump, starting diff");
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final long start = System.currentTimeMillis();
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long update = start - 7000;
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int count = 0;
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for (final byte[] refhash: mr) {
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if (idx.get(refhash) == -1) {
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// the key exists as urlhash in the URL database, but not in the collection as referenced urlhash
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hs.put(refhash);
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}
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count++;
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if (System.currentTimeMillis() - update > 10000) {
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System.out.println("INDEX DIFF URL-COL running, checked " + count + ", found " + hs.size() + " missing references so far, " + (((System.currentTimeMillis() - start) * (mr.size() - count) / count) / 60000) + " minutes remaining");
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update = System.currentTimeMillis();
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}
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}
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idx.close();
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mr.close();
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System.out.println("INDEX DIFF URL-COL finished diff, starting dump to " + diffFile);
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count = hs.dump(new File(diffFile));
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System.out.println("INDEX DIFF URL-COL finished dump, wrote " + count + " references that occur in the URL-DB, but not in the collection-dump");
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return count;
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}
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public static void export(final String metadataPath, final int format, final String export, final String diffFile) throws IOException, RowSpaceExceededException {
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// format: 0=text, 1=html, 2=rss/xml
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System.out.println("URL EXPORT startup");
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final MetadataRepository mr = new MetadataRepository(new File(metadataPath), "text.urlmd", false, false);
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final HandleSet hs = (diffFile == null) ? null : new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, new File(diffFile));
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System.out.println("URL EXPORT loaded dump, starting export");
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final Export e = mr.export(new File(export), ".*", hs, format, false);
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try {
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e.join();
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} catch (InterruptedException e1) {
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Log.logException(e1);
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}
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System.out.println("URL EXPORT finished export, wrote " + ((hs == null) ? mr.size() : hs.size()) + " entries");
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}
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public static void delete(final String metadataPath, final String diffFile) throws IOException, RowSpaceExceededException {
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System.out.println("URL DELETE startup");
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final MetadataRepository mr = new MetadataRepository(new File(metadataPath), "text.urlmd", false, false);
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final int mrSize = mr.size();
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final HandleSet hs = new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, new File(diffFile));
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System.out.println("URL DELETE loaded dump, starting deletion of " + hs.size() + " entries from " + mrSize);
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for (final byte[] refhash: hs) {
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mr.remove(refhash);
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}
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System.out.println("URL DELETE finished deletions, " + mr.size() + " entries left in URL database");
|
|
}
|
|
|
|
public static void main(final String[] args) {
|
|
if (args[0].equals("-stat") && args.length >= 2) {
|
|
// generate a statistics about common words in file, store to <file>.stat
|
|
// example:
|
|
// java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -stat DATA/EXPORT/urls1.txt.gz
|
|
for (int i = 1; i < args.length; i++) genstat(args[i]);
|
|
} else if (args[0].equals("-host") && args.length >= 2) {
|
|
// generate a file <file>.host containing only the hosts of the urls
|
|
for (int i = 1; i < args.length; i++) genhost(args[i]);
|
|
} else if (args[0].equals("-sort") && args.length >= 2) {
|
|
// generate file <file>.x.sort with sorted lists and split the file in smaller pieces
|
|
for (int i = 1; i < args.length; i++) sortsplit(args[i]);
|
|
} else if (args[0].equals("-incell") && args.length >= 2) {
|
|
// generate a dump of all referenced URL hashes from a given RICELL
|
|
// example:
|
|
// java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -incell DATA/INDEX/freeworld/TEXT/RICELL used.dump
|
|
incell(new File(args[1]), args[2]);
|
|
} else if (args[0].equals("-diffurlcol") && args.length >= 3) {
|
|
// make a diff-file that contains hashes from the url database that do not occur in the collection reference dump
|
|
// example:
|
|
// java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -diffurlcol DATA/INDEX/freeworld/TEXT/METADATA used.dump diffurlcol.dump
|
|
try {
|
|
diffurlcol(args[1], args[2], args[3]);
|
|
} catch (Exception e) {
|
|
Log.logException(e);
|
|
}
|
|
} else if (args[0].equals("-export") && args.length >= 4) {
|
|
// export a url-list file
|
|
// example:
|
|
// java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -export DATA/INDEX/freeworld/TEXT xml urls.xml diffurlcol.dump
|
|
// instead of 'xml' (which is in fact a rss), the format can also be 'text' and 'html'
|
|
int format = (args[2].equals("xml")) ? 2 : (args[2].equals("html")) ? 1 : 0;
|
|
try {
|
|
export(args[1], format, args[3], (args.length >= 5) ? args[4] : null);
|
|
} catch (Exception e) {
|
|
Log.logException(e);
|
|
}
|
|
} else if (args[0].equals("-delete") && args.length >= 3) {
|
|
// delete from URLs as given by urlreference diff dump
|
|
// example:
|
|
// java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -delete DATA/INDEX/freeworld/TEXT diffurlcol.dump
|
|
// instead of 'xml' (which is in fact a rss), the format can also be 'text' and 'html'
|
|
try {
|
|
delete(args[1], args[2]);
|
|
} catch (Exception e) {
|
|
Log.logException(e);
|
|
}
|
|
} else {
|
|
System.out.println("usage:");
|
|
System.out.println();
|
|
System.out.println("-stat <file> ");
|
|
System.out.println(" generate a statistics about common words in file, store to <file>.stat");
|
|
System.out.println();
|
|
System.out.println("-host <file>");
|
|
System.out.println(" generate a file <file>.host containing only the hosts of the urls");
|
|
System.out.println();
|
|
System.out.println("-sort <file>");
|
|
System.out.println(" generate file <file>.x.sort with sorted lists and split the file in smaller pieces");
|
|
System.out.println();
|
|
System.out.println("-incollection <path-to-RICOLLECTION> <file>");
|
|
System.out.println(" generate a dump of all referenced URL hashes");
|
|
System.out.println();
|
|
System.out.println("-diffurlcol <path-to-URL-DB> <dump-from-incollection> <diff-dump>");
|
|
System.out.println(" find URLs that occur in url-db but not in collections");
|
|
System.out.println();
|
|
System.out.println("-export <path-to-URL-DB> <format text|html|xml> <export-file> <diff-dump>");
|
|
System.out.println(" export urls to file. the last argument can be omitted, then all urls are exported");
|
|
System.out.println();
|
|
System.out.println("-delete <path-to-URL-DB> <diff-dump>");
|
|
System.out.println(" delete all urls that are listed in the diff-dump from the url-db");
|
|
System.out.println();
|
|
System.out.println("to do a complete clean-up of the url database, start the following:");
|
|
System.out.println();
|
|
System.out.println("java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -incollection DATA/INDEX/freeworld/TEXT/RICOLLECTION used.dump");
|
|
System.out.println("java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -diffurlcol DATA/INDEX/freeworld/TEXT used.dump diffurlcol.dump");
|
|
System.out.println("java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -export DATA/INDEX/freeworld/TEXT xml urls.xml diffurlcol.dump");
|
|
System.out.println("java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -delete DATA/INDEX/freeworld/TEXT diffurlcol.dump");
|
|
System.out.println();
|
|
}
|
|
System.exit(0); // kill remaining threads
|
|
}
|
|
|
|
private static final String num(final int i) {
|
|
StringBuffer s = new StringBuffer(Integer.toString(i));
|
|
while (s.length() < 9) s.insert(0, "0");
|
|
return s.toString();
|
|
}
|
|
}
|