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212 lines
8.5 KiB
212 lines
8.5 KiB
// abstractURLPattern.java
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// -----------------------
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// part of YaCy
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2005
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// last major change: 12. August 2006 (theli) ?
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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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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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package de.anomic.plasma.urlPattern;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import de.anomic.kelondro.kelondroMSetTools;
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import de.anomic.net.URL;
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public abstract class abstractURLPattern implements plasmaURLPattern {
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protected static final HashSet BLACKLIST_TYPES = new HashSet(Arrays.asList(new String[]{
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plasmaURLPattern.BLACKLIST_CRAWLER,
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plasmaURLPattern.BLACKLIST_PROXY,
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plasmaURLPattern.BLACKLIST_DHT,
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plasmaURLPattern.BLACKLIST_SEARCH
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}));
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protected File blacklistRootPath = null;
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protected HashMap cachedUrlHashs = null;
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protected HashMap /* <blacklistType,HashMap<host,ArrayList<path>>> */ hostpaths = null; // key=host, value=path; mapped url is http://host/path; path does not start with '/' here
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public abstractURLPattern(File rootPath) {
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this.setRootPath(rootPath);
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this.blacklistRootPath = rootPath;
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// prepare the data structure
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this.hostpaths = new HashMap();
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this.cachedUrlHashs = new HashMap();
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Iterator iter = BLACKLIST_TYPES.iterator();
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while (iter.hasNext()) {
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String blacklistType = (String) iter.next();
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this.hostpaths.put(blacklistType, new HashMap());
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this.cachedUrlHashs.put(blacklistType, Collections.synchronizedSet(new HashSet()));
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}
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}
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public void setRootPath(File rootPath) {
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if (rootPath == null)
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throw new NullPointerException("The blacklist root path must not be null.");
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if (!rootPath.isDirectory())
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throw new IllegalArgumentException("The blacklist root path is not a directory.");
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if (!rootPath.canRead())
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throw new IllegalArgumentException("The blacklist root path is not readable.");
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this.blacklistRootPath = rootPath;
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}
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protected HashMap getBlacklistMap(String blacklistType) {
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if (blacklistType == null) throw new IllegalArgumentException();
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if (!BLACKLIST_TYPES.contains(blacklistType)) throw new IllegalArgumentException("Unknown backlist type.");
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return (HashMap) this.hostpaths.get(blacklistType);
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}
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protected Set getCacheUrlHashsSet(String blacklistType) {
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if (blacklistType == null) throw new IllegalArgumentException();
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if (!BLACKLIST_TYPES.contains(blacklistType)) throw new IllegalArgumentException("Unknown backlist type.");
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return (Set) this.cachedUrlHashs.get(blacklistType);
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}
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public void clear() {
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Iterator iter = this.hostpaths.keySet().iterator();
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while (iter.hasNext()) {
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HashMap blacklistMap = (HashMap) this.hostpaths.get(iter.next());
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blacklistMap.clear();
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}
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}
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public int size() {
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int size = 0;
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Iterator iter = this.hostpaths.keySet().iterator();
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while (iter.hasNext()) {
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Iterator blIter = ((HashMap)this.hostpaths.get(iter.next())).values().iterator();
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while (blIter.hasNext())
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size += ((ArrayList)blIter.next()).size();
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}
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return size;
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}
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public void loadList(blacklistFile[] blFiles, String sep) {
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for (int j = 0; j < blFiles.length; j++) {
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blacklistFile blf = blFiles[j];
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loadList(blf.getType(), blf.getFileName(), sep);
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}
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}
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public void loadList(String blacklistType, String filenames, String sep) {
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HashMap blacklistMap = getBlacklistMap(blacklistType);
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String[] filenamesarray = filenames.split(",");
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if (filenamesarray.length > 0) {
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for (int i = 0; i < filenamesarray.length; i++) {
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blacklistMap.putAll(kelondroMSetTools.loadMapMultiValsPerKey(new File(this.blacklistRootPath, filenamesarray[i]).toString(), sep));
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}
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}
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}
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public void removeAll(String blacklistType, String host) {
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HashMap blacklistMap = getBlacklistMap(blacklistType);
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blacklistMap.remove(host);
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}
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public void remove(String blacklistType, String host, String path) {
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HashMap blacklistMap = getBlacklistMap(blacklistType);
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ArrayList hostList = (ArrayList)blacklistMap.get(host);
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hostList.remove(path);
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if (hostList.size() == 0)
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blacklistMap.remove(host);
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}
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public void add(String blacklistType, String host, String path) {
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if (host == null) throw new NullPointerException();
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if (path == null) throw new NullPointerException();
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if (path.length() > 0 && path.charAt(0) == '/') path = path.substring(1);
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HashMap blacklistMap = getBlacklistMap(blacklistType);
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ArrayList hostList = (ArrayList)blacklistMap.get(host.toLowerCase());
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if (hostList == null)
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blacklistMap.put(host.toLowerCase(), (hostList = new ArrayList()));
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hostList.add(path);
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}
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public int blacklistCacheSize() {
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int size = 0;
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Iterator iter = this.cachedUrlHashs.keySet().iterator();
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while (iter.hasNext()) {
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Set blacklistMap = (Set) this.cachedUrlHashs.get(iter.next());
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size += blacklistMap.size();
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}
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return size;
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}
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public boolean hashInBlacklistedCache(String blacklistType, String urlHash) {
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Set urlHashCache = getCacheUrlHashsSet(blacklistType);
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return urlHashCache.contains(urlHash);
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}
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public boolean isListed(String blacklistType, String urlHash, URL url) {
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Set urlHashCache = getCacheUrlHashsSet(blacklistType);
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if (!urlHashCache.contains(urlHash)) {
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boolean temp = isListed(blacklistType, url.getHost().toLowerCase(), url.getFile());
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if (temp) {
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urlHashCache.add(urlHash);
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}
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return temp;
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}
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return true;
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}
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public final boolean isListed(String blacklistType, URL url) {
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if (url == null) { return true; }
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return isListed(blacklistType, url.getHost().toLowerCase(), url.getFile());
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}
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}
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