mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
4588b5a291
- some restructuring of the document counting and logging structures was necessary - better abstraction of CrawlProfiles - added deletion of logs to the index deletion option (if the index is deleted using the servlets) which is necessary to reset the domain counters for the page limitation - more refactoring to get the LibraryProvider more clean - some refactoring of the Condenser class git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7478 6c8d7289-2bf4-0310-a012-ef5d649a1542
281 lines
11 KiB
Java
281 lines
11 KiB
Java
// CrawlProfile.java
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// ------------------------
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// part of YaCy
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// (C) by Michael Peter Christen; mc@yacy.net
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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: 31.08.2010
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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.crawler;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.regex.Pattern;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.data.word.Word;
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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.order.Digest;
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public class CrawlProfile extends ConcurrentHashMap<String, String> implements Map<String, String> {
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private static final long serialVersionUID = 5527325718810703504L;
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public static final String MATCH_ALL = ".*";
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public static final String MATCH_NEVER = "";
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// this is a simple record structure that hold all properties of a single crawl start
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public static final String HANDLE = "handle";
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public static final String NAME = "name";
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public static final String START_URL = "startURL";
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public static final String FILTER_MUSTMATCH = "generalFilter";
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public static final String FILTER_MUSTNOTMATCH = "nevermatch";
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public static final String DEPTH = "generalDepth";
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public static final String RECRAWL_IF_OLDER = "recrawlIfOlder";
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public static final String DOM_MAX_PAGES = "domMaxPages";
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public static final String CRAWLING_Q = "crawlingQ";
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public static final String INDEX_TEXT = "indexText";
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public static final String INDEX_MEDIA = "indexMedia";
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public static final String STORE_HTCACHE = "storeHTCache";
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public static final String REMOTE_INDEXING = "remoteIndexing";
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public static final String XSSTOPW = "xsstopw";
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public static final String XDSTOPW = "xdstopw";
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public static final String XPSTOPW = "xpstopw";
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public static final String CACHE_STRAGEGY = "cacheStrategy";
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private Pattern mustmatch = null, mustnotmatch = null;
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public CrawlProfile(
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final String name,
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final DigestURI startURL,
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final String mustmatch,
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final String mustnotmatch,
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final int depth,
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final long recrawlIfOlder /*date*/,
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final int domMaxPages,
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final boolean crawlingQ,
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final boolean indexText,
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final boolean indexMedia,
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final boolean storeHTCache,
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final boolean remoteIndexing,
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final boolean xsstopw,
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final boolean xdstopw,
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final boolean xpstopw,
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final CacheStrategy cacheStrategy) {
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super(40);
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if (name == null || name.length() == 0) throw new NullPointerException("name must not be null");
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final String handle = (startURL == null) ? Base64Order.enhancedCoder.encode(Digest.encodeMD5Raw(name)).substring(0, Word.commonHashLength) : new String(startURL.hash());
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put(HANDLE, handle);
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put(NAME, name);
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put(START_URL, (startURL == null) ? "" : startURL.toNormalform(true, false));
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put(FILTER_MUSTMATCH, (mustmatch == null) ? CrawlProfile.MATCH_ALL : mustmatch);
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put(FILTER_MUSTNOTMATCH, (mustnotmatch == null) ? CrawlProfile.MATCH_NEVER : mustnotmatch);
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put(DEPTH, depth);
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put(RECRAWL_IF_OLDER, recrawlIfOlder);
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put(DOM_MAX_PAGES, domMaxPages);
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put(CRAWLING_Q, crawlingQ); // crawling of urls with '?'
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put(INDEX_TEXT, indexText);
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put(INDEX_MEDIA, indexMedia);
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put(STORE_HTCACHE, storeHTCache);
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put(REMOTE_INDEXING, remoteIndexing);
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put(XSSTOPW, xsstopw); // exclude static stop-words
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put(XDSTOPW, xdstopw); // exclude dynamic stop-word
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put(XPSTOPW, xpstopw); // exclude parent stop-words
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put(CACHE_STRAGEGY, cacheStrategy.toString());
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}
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public CrawlProfile(Map<String, String> ext) {
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super(ext == null ? 1 : ext.size());
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if (ext != null) this.putAll(ext);
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}
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public void put(String key, boolean value) {
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super.put(key, Boolean.toString(value));
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}
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public void put(String key, int value) {
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super.put(key, Integer.toString(value));
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}
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public void put(String key, long value) {
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super.put(key, Long.toString(value));
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}
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public String handle() {
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final String r = get(HANDLE);
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//if (r == null) return null;
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return r;
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}
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public String name() {
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final String r = get(NAME);
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if (r == null) return "";
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return r;
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}
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public String startURL() {
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final String r = get(START_URL);
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return r;
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}
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public Pattern mustMatchPattern() {
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if (this.mustmatch == null) {
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String r = get(FILTER_MUSTMATCH);
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if (r == null) r = CrawlProfile.MATCH_ALL;
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this.mustmatch = Pattern.compile(r);
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}
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return this.mustmatch;
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}
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public Pattern mustNotMatchPattern() {
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if (this.mustnotmatch == null) {
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String r = get(FILTER_MUSTNOTMATCH);
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if (r == null) r = CrawlProfile.MATCH_NEVER;
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this.mustnotmatch = Pattern.compile(r);
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}
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return this.mustnotmatch;
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}
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public int depth() {
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final String r = get(DEPTH);
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if (r == null) return 0;
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try {
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return Integer.parseInt(r);
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} catch (final NumberFormatException e) {
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Log.logException(e);
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return 0;
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}
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}
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public CacheStrategy cacheStrategy() {
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final String r = get(CACHE_STRAGEGY);
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if (r == null) return CacheStrategy.IFFRESH;
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try {
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return CacheStrategy.decode(Integer.parseInt(r));
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} catch (final NumberFormatException e) {
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Log.logException(e);
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return CacheStrategy.IFFRESH;
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}
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}
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public void setCacheStrategy(CacheStrategy newStrategy) {
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put(CACHE_STRAGEGY, newStrategy.toString());
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}
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public long recrawlIfOlder() {
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// returns a long (millis) that is the minimum age that
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// an entry must have to be re-crawled
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final String r = get(RECRAWL_IF_OLDER);
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if (r == null) return 0L;
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try {
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final long l = Long.parseLong(r);
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return (l < 0) ? 0L : l;
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} catch (final NumberFormatException e) {
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Log.logException(e);
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return 0L;
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}
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}
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public int domMaxPages() {
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// this is the maximum number of pages that are crawled for a single domain
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// if -1, this means no limit
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final String r = get(DOM_MAX_PAGES);
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if (r == null) return Integer.MAX_VALUE;
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try {
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final int i = Integer.parseInt(r);
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if (i < 0) return Integer.MAX_VALUE;
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return i;
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} catch (final NumberFormatException e) {
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Log.logException(e);
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return Integer.MAX_VALUE;
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}
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}
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public boolean crawlingQ() {
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final String r = get(CRAWLING_Q);
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if (r == null) return false;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean indexText() {
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final String r = get(INDEX_TEXT);
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if (r == null) return true;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean indexMedia() {
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final String r = get(INDEX_MEDIA);
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if (r == null) return true;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean storeHTCache() {
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final String r = get(STORE_HTCACHE);
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if (r == null) return false;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean remoteIndexing() {
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final String r = get(REMOTE_INDEXING);
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if (r == null) return false;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean excludeStaticStopwords() {
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final String r = get(XSSTOPW);
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if (r == null) return false;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean excludeDynamicStopwords() {
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final String r = get(XDSTOPW);
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if (r == null) return false;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public boolean excludeParentStopwords() {
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final String r = get(XPSTOPW);
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if (r == null) return false;
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return (r.equals(Boolean.TRUE.toString()));
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}
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public static enum CacheStrategy {
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NOCACHE(0), // never use the cache, all content from fresh internet source
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IFFRESH(1), // use the cache if the cache exists and is fresh using the proxy-fresh rules
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IFEXIST(2), // use the cache if the cache exist. Do no check freshness. Otherwise use online source.
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CACHEONLY(3); // never go online, use all content from cache. If no cache entry exist, consider content nevertheless as available
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public int code;
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private CacheStrategy(int code) {
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this.code = code;
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}
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public String toString() {
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return Integer.toString(this.code);
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}
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public static CacheStrategy decode(int code) {
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for (CacheStrategy strategy: CacheStrategy.values()) if (strategy.code == code) return strategy;
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return NOCACHE;
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}
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public static CacheStrategy parse(String name) {
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if (name == null) return null;
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if (name.equals("nocache")) return NOCACHE;
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if (name.equals("iffresh")) return IFFRESH;
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if (name.equals("ifexist")) return IFEXIST;
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if (name.equals("cacheonly")) return CACHEONLY;
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if (name.equals("true")) return IFFRESH;
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if (name.equals("false")) return null; // if this cache strategy is assigned as query attribute, null means "do not create a snippet"
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return null;
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}
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public String toName() {
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return this.name().toLowerCase();
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}
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public boolean isAllowedToFetchOnline() {
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return this.code < 3;
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}
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public boolean mustBeOffline() {
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return this.code == 3;
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}
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}
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public static long getRecrawlDate(final long oldTimeMinutes) {
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return System.currentTimeMillis() - (60000L * oldTimeMinutes);
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}
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}
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