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921 lines
38 KiB
921 lines
38 KiB
// plasmaParser.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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//
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// last major change: 02.05.2005 by Martin Thelian
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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// compile: javac -classpath lib/commons-collections.jar:lib/commons-pool-1.2.jar -sourcepath source source/de/anomic/plasma/plasmaParser.java
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package de.anomic.plasma;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileFilter;
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import java.io.FileInputStream;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.net.MalformedURLException;
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import java.net.URI;
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import java.net.URL;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Hashtable;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Properties;
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import java.util.Set;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.htmlFilter.htmlFilterOutputStream;
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import de.anomic.http.httpc;
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import de.anomic.plasma.parser.Parser;
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import de.anomic.plasma.parser.ParserException;
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import de.anomic.plasma.parser.ParserInfo;
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import de.anomic.server.serverFileUtils;
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import de.anomic.server.logging.serverLog;
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import org.apache.commons.pool.impl.GenericKeyedObjectPool;
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import org.apache.commons.pool.KeyedPoolableObjectFactory;
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import org.apache.commons.pool.impl.GenericObjectPool;
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public final class plasmaParser {
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public static final String PARSER_MODE_PROXY = "PROXY";
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public static final String PARSER_MODE_CRAWLER = "CRAWLER";
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public static final String PARSER_MODE_URLREDIRECTOR = "URLREDIRECTOR";
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public static final String PARSER_MODE_ICAP = "ICAP";
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public static final HashSet PARSER_MODE = new HashSet(Arrays.asList(new String[]{
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PARSER_MODE_PROXY,
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PARSER_MODE_CRAWLER,
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PARSER_MODE_ICAP,
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PARSER_MODE_URLREDIRECTOR
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}));
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private static final HashMap parserConfigList = new HashMap();
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/**
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* A list containing all installed parsers and the mimeType that they support
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* @see #loadAvailableParserList()
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*/
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static final Properties availableParserList = new Properties();
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/**
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* A list of file extensions that are supported by the html-parser and can
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* be parsed in realtime.
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*/
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static final HashSet supportedRealtimeFileExt = new HashSet();
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/**
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* A list of mimeTypes that can be parsed in Realtime (on the fly)
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*/
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static final HashSet realtimeParsableMimeTypes = new HashSet();
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private static final Properties mimeTypeLookupByFileExt = new Properties();
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static {
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// loading a list of extensions from file
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BufferedInputStream bufferedIn = null;
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try {
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mimeTypeLookupByFileExt.load(bufferedIn = new BufferedInputStream(new FileInputStream(new File("httpd.mime"))));
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} catch (IOException e) {
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System.err.println("ERROR: httpd.mime not found in settings path");
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} finally {
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if (bufferedIn != null) try{bufferedIn.close();}catch(Exception e){}
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}
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}
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/**
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* A pool of parsers.
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* @see plasmaParserPool
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* @see plasmaParserFactory
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*/
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static plasmaParserPool theParserPool;
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/**
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* A list of media extensions that should <b>not</b> be handled by the plasmaParser
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*/
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private static final HashSet mediaExtSet = new HashSet();
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/**
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* A list of image extensions that should be handleable by image viewer apps
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*/
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private static final HashSet imageExtSet = new HashSet();
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/**
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* This {@link FilenameFilter} is used to find all classes based on there filenames
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* which seems to be additional content parsers.
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* Currently the filenames of all content parser classes must end with <code>Parser.class</code>
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*/
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private static final FilenameFilter parserFileNameFilter = new FilenameFilter() {
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public boolean accept(File dir, String name) {
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return name.endsWith("Parser.class");
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}
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};
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/**
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* This {@link FileFilter} is used to get all subpackages
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* of the parser package.
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*/
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private static final FileFilter parserDirectoryFilter = new FileFilter() {
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public boolean accept(File file) {
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return file.isDirectory();
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}
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};
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/**
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* Initializing the
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* @see #initMediaExt(String)
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*/
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static {
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initMediaExt(extString2extList(
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"sit,hqx,img,dmg,exe,com,bat,sh" + // application container
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"tar,gz,bz2,arj,zip,rar," + // archive formats
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"ps,xls,ppt,asf," + // text formats without support
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"mp3,ogg,aac," + // audio formats
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"swf,avi,wmv,rm,mov,mpg,mpeg,ram," + // video formats
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"jpg,jpeg,jpe,gif,png" // image formats
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));
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initImageExt(extString2extList(
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"jpg,jpeg,jpe,gif,png" // image formats
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));
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/* ===================================================
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* initializing the parser object pool
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* =================================================== */
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GenericKeyedObjectPool.Config config = new GenericKeyedObjectPool.Config();
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// The maximum number of active connections that can be allocated from pool at the same time,
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// 0 for no limit
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config.maxActive = 0;
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// The maximum number of idle connections connections in the pool
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// 0 = no limit.
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config.maxIdle = 5;
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config.whenExhaustedAction = GenericObjectPool.WHEN_EXHAUSTED_BLOCK;
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config.minEvictableIdleTimeMillis = 30000;
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plasmaParser.theParserPool = new plasmaParserPool(new plasmaParserFactory(),config);
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/* ===================================================
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* loading a list of available parsers
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* =================================================== */
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loadAvailableParserList();
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}
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private serverLog theLogger = new serverLog("PARSER");
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public static HashMap getParserConfigList() {
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return parserConfigList;
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}
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/**
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* This function is used to initialize the realtimeParsableMimeTypes List.
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* This list contains a list of mimeTypes that can be parsed in realtime by
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* the yacy html-Parser
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* @param realtimeParsableMimeTypes a list of mimetypes that can be parsed by the
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* yacy html parser
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*/
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public static void initRealtimeParsableMimeTypes(String realtimeParsableMimeTypes) {
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LinkedList mimeTypes = new LinkedList();
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if ((realtimeParsableMimeTypes == null) || (realtimeParsableMimeTypes.length() == 0)) {
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// Nothing todo here
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} else {
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String[] realtimeParsableMimeTypeList = realtimeParsableMimeTypes.split(",");
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for (int i = 0; i < realtimeParsableMimeTypeList.length; i++) mimeTypes.add(realtimeParsableMimeTypeList[i].toLowerCase().trim());
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}
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initRealtimeParsableMimeTypes(mimeTypes);
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}
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/**
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* This function is used to initialize the realtimeParsableMimeTypes List.
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* This list contains a list of mimeTypes that can be parsed in realtime by
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* the yacy html-Parser
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* @param realtimeParsableMimeTypes a list of mimetypes that can be parsed by the
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* yacy html parser
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*/
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public static void initRealtimeParsableMimeTypes(List mimeTypesList) {
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synchronized (realtimeParsableMimeTypes) {
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realtimeParsableMimeTypes.clear();
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realtimeParsableMimeTypes.addAll(mimeTypesList);
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}
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}
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public static List extString2extList(String extString) {
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LinkedList extensions = new LinkedList();
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if ((extString == null) || (extString.length() == 0)) {
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return extensions;
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} else {
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String[] xs = extString.split(",");
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for (int i = 0; i < xs.length; i++) extensions.add(xs[i].toLowerCase().trim());
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}
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return extensions;
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}
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public static void initMediaExt(List mediaExtList) {
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synchronized (mediaExtSet) {
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mediaExtSet.clear();
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mediaExtSet.addAll(mediaExtList);
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}
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}
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public static void initImageExt(List imageExtList) {
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synchronized (imageExtSet) {
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imageExtSet.clear();
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imageExtSet.addAll(imageExtList);
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}
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}
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public static String getMediaExtList() {
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synchronized (mediaExtSet) {
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return mediaExtSet.toString();
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}
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}
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public static void initSupportedRealtimeFileExt(List supportedRealtimeFileExtList) {
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synchronized (supportedRealtimeFileExt) {
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supportedRealtimeFileExt.clear();
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supportedRealtimeFileExt.addAll(supportedRealtimeFileExtList);
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}
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}
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public static boolean realtimeParsableMimeTypesContains(String mimeType) {
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mimeType = getRealMimeType(mimeType);
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synchronized (realtimeParsableMimeTypes) {
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return realtimeParsableMimeTypes.contains(mimeType);
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}
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}
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public static boolean supportedRealTimeContent(URL url, String mimeType) {
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return realtimeParsableMimeTypesContains(mimeType) && supportedRealtimeFileExtContains(url);
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}
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public static boolean supportedRealtimeFileExtContains(URL url) {
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String fileExt = getFileExt(url);
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synchronized (supportedRealtimeFileExt) {
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return supportedRealtimeFileExt.contains(fileExt);
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}
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}
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public static String getFileExt(URL url) {
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// getting the file path
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String name = url.getFile();
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// chopping http parameters from the url
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int p = name.lastIndexOf('?');
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if (p != -1) {
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name = name.substring(0,p);
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}
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// tetermining last position of / in the file path
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p = name.lastIndexOf('/');
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if (p != -1) {
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name = name.substring(p);
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}
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// termining last position of . in file path
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p = name.lastIndexOf('.');
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if (p < 0) return "";
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return name.substring(p + 1);
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}
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public static boolean mediaExtContains(String mediaExt) {
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if (mediaExt == null) return false;
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mediaExt = mediaExt.trim().toLowerCase();
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synchronized (supportedRealtimeFileExt) {
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if (supportedRealtimeFileExt.contains(mediaExt)) return false;
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}
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if (supportedFileExtContains(mediaExt)) return false;
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synchronized (mediaExtSet) {
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return mediaExtSet.contains(mediaExt);
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}
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}
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public static boolean imageExtContains(String imageExt) {
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if (imageExt == null) return false;
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synchronized (imageExtSet) {
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return imageExtSet.contains(imageExt.trim().toLowerCase());
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}
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}
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public static String getRealMimeType(String mimeType) {
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//if (mimeType == null) doMimeTypeAnalysis
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if (mimeType == null) mimeType = "application/octet-stream";
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mimeType = mimeType.trim().toLowerCase();
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int pos = mimeType.indexOf(';');
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return ((pos < 0) ? mimeType : mimeType.substring(0, pos));
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}
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public static String getMimeTypeByFileExt(String fileExt) {
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return mimeTypeLookupByFileExt.getProperty(fileExt,"application/octet-stream");
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}
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public Hashtable getAvailableParserList() {
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return plasmaParser.availableParserList;
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}
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private static void loadAvailableParserList() {
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try {
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plasmaParser.availableParserList.clear();
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// getting the current java classpath
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String javaClassPath = System.getProperty("java.class.path");
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// getting the current package name
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String plasmaParserPkgName = plasmaParser.class.getPackage().getName() + ".parser";
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serverLog.logInfo("PARSER","Searching for additional content parsers in package " + plasmaParserPkgName);
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// getting an uri to the parser subpackage
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String packageURI = plasmaParser.class.getResource("/"+plasmaParserPkgName.replace('.','/')).toString();
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serverLog.logFine("PARSER", "Parser directory is " + packageURI);
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// open the parser directory
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File parserDir = new File(new URI(packageURI));
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if ((parserDir == null) || (!parserDir.exists()) || (!parserDir.isDirectory())) return;
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/*
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* loop through all subdirectories and test if we can
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* find an additional parser class
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*/
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File[] parserDirectories = parserDir.listFiles(parserDirectoryFilter);
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if (parserDirectories == null) return;
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for (int parserDirNr=0; parserDirNr< parserDirectories.length; parserDirNr++) {
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File currentDir = parserDirectories[parserDirNr];
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serverLog.logFine("PARSER", "Searching in directory " + currentDir.toString());
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String[] parserClasses = currentDir.list(parserFileNameFilter);
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if (parserClasses == null) continue;
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for (int parserNr=0; parserNr<parserClasses.length; parserNr++) {
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serverLog.logFine("PARSER", "Testing parser class " + parserClasses[parserNr]);
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String className = parserClasses[parserNr].substring(0,parserClasses[parserNr].indexOf(".class"));
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String fullClassName = plasmaParserPkgName + "." + currentDir.getName() + "." + className;
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try {
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// trying to load the parser class by its name
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Class parserClass = Class.forName(fullClassName);
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Object theParser = parserClass.newInstance();
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if (!(theParser instanceof Parser)) continue;
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// testing if all needed libx libraries are available
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String[] neededLibx = ((Parser)theParser).getLibxDependences();
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StringBuffer neededLibxBuf = new StringBuffer();
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if (neededLibx != null) {
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for (int libxId=0; libxId < neededLibx.length; libxId++) {
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if (javaClassPath.indexOf(neededLibx[libxId]) == -1) {
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throw new ParserException("Missing dependency detected: '" + neededLibx[libxId] + "'.");
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}
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neededLibxBuf.append(neededLibx[libxId])
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.append(",");
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}
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if (neededLibxBuf.length()>0) neededLibxBuf.deleteCharAt(neededLibxBuf.length()-1);
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}
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// loading the list of mime-types that are supported by this parser class
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Hashtable supportedMimeTypes = ((Parser)theParser).getSupportedMimeTypes();
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// creating a parser info object
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ParserInfo parserInfo = new ParserInfo();
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parserInfo.parserClass = parserClass;
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parserInfo.parserClassName = fullClassName;
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parserInfo.libxDependencies = neededLibx;
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parserInfo.supportedMimeTypes = supportedMimeTypes;
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parserInfo.parserVersionNr = ((Parser)theParser).getVersion();
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parserInfo.parserName = ((Parser)theParser).getName();
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Iterator mimeTypeIterator = supportedMimeTypes.keySet().iterator();
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while (mimeTypeIterator.hasNext()) {
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String mimeType = (String) mimeTypeIterator.next();
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availableParserList.put(mimeType,parserInfo );
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serverLog.logInfo("PARSER", "Found functional parser for mimeType '" + mimeType + "'." +
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"\n\tName: " + parserInfo.parserName +
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"\n\tVersion: " + parserInfo.parserVersionNr +
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"\n\tClass: " + parserInfo.parserClassName +
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((neededLibxBuf.length()>0)?"\n\tDependencies: " + neededLibxBuf.toString():""));
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}
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} catch (Exception e) { /* we can ignore this for the moment */
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serverLog.logWarning("PARSER", "Parser '" + className + "' doesn't work correctly and will be ignored.\n [" + e.getClass().getName() + "]: " + e.getMessage());
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} catch (Error e) { /* we can ignore this for the moment */
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serverLog.logWarning("PARSER", "Parser '" + className + "' doesn't work correctly and will be ignored.\n [" + e.getClass().getName() + "]: " + e.getMessage());
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}
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}
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}
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} catch (Exception e) {
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serverLog.logSevere("PARSER", "Unable to determine all installed parsers. " + e.getMessage());
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}
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}
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public void close() {
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// clearing the parser list
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Iterator configs = parserConfigList.values().iterator();
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while (configs.hasNext()) {
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plasmaParserConfig currentConfig = (plasmaParserConfig) configs.next();
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synchronized (currentConfig.enabledParserList) {
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currentConfig.enabledParserList.clear();
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}
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}
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|
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// closing the parser object pool
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try {
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theParserPool.close();
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} catch (Exception e) { }
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}
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|
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public plasmaParserDocument parseSource(URL location, String mimeType, byte[] source) {
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File tempFile = null;
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try {
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tempFile = File.createTempFile("parseSource", ".tmp");
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serverFileUtils.write(source, tempFile);
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return parseSource(location, mimeType, tempFile);
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} catch (Exception e) {
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serverLog.logSevere("PARSER", "parseSource1: " + e.getMessage(), e);
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return null;
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} finally {
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if (tempFile != null) try { tempFile.delete(); } catch (Exception ex){}
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}
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}
|
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|
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public plasmaParserDocument parseSource(URL location, String mimeType, File sourceFile) {
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|
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Parser theParser = null;
|
|
try {
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mimeType = getRealMimeType(mimeType);
|
|
String fileExt = getFileExt(location);
|
|
|
|
if (this.theLogger.isFine())
|
|
this.theLogger.logFine("Parsing " + location + " with mimeType '" + mimeType +
|
|
"' and file extension '" + fileExt + "'.");
|
|
|
|
/*
|
|
* There are some problematic mimeType - fileExtension combination where we have to enforce
|
|
* a mimeType detection to get the proper parser for the content
|
|
*
|
|
* - application/zip + .odt
|
|
* - text/plain + .odt
|
|
* - text/plain + .vcf
|
|
* - text/xml + .rss
|
|
* - text/xml + .atom
|
|
*
|
|
* In all these cases we can trust the fileExtension and have to determine the proper mimeType.
|
|
*
|
|
*/
|
|
|
|
// // Handling of not trustable mimeTypes
|
|
// // - text/plain
|
|
// // - text/xml
|
|
// // - application/octet-stream
|
|
// // - application/zip
|
|
// if (
|
|
// (mimeType.equalsIgnoreCase("text/plain") && !fileExt.equalsIgnoreCase("txt")) ||
|
|
// (mimeType.equalsIgnoreCase("text/xml") && !fileExt.equalsIgnoreCase("txt"))
|
|
// ) {
|
|
// if (this.theLogger.isFine())
|
|
// this.theLogger.logFine("Document " + location + " has an mimeType '" + mimeType +
|
|
// "' that seems not to be correct for file extension '" + fileExt + "'.");
|
|
//
|
|
// if (enabledParserList.containsKey("application/octet-stream")) {
|
|
// theParser = this.getParser("application/octet-stream");
|
|
// Object newMime = theParser.getClass().getMethod("getMimeType", new Class[]{File.class}).invoke(theParser, sourceFile);
|
|
// if (newMime == null)
|
|
// if (newMime instanceof String) {
|
|
// String newMimeType = (String)newMime;
|
|
// if ((newMimeType.equals("application/octet-stream")) {
|
|
// return null;
|
|
// }
|
|
// mimeType = newMimeType;
|
|
// }
|
|
// } else {
|
|
// return null;
|
|
// }
|
|
// } else if (mimeType.equalsIgnoreCase("application/zip") && fileExt.equalsIgnoreCase("odt")){
|
|
// if (enabledParserList.containsKey("application/vnd.oasis.opendocument.text")) {
|
|
// mimeType = "application/vnd.oasis.opendocument.text";
|
|
// } else {
|
|
// return null;
|
|
// }
|
|
// }
|
|
|
|
// getting the correct parser for the given mimeType
|
|
theParser = this.getParser(mimeType);
|
|
|
|
// if a parser was found we use it ...
|
|
if (theParser != null) {
|
|
return theParser.parse(location, mimeType,sourceFile);
|
|
} else if (realtimeParsableMimeTypesContains(mimeType)) {
|
|
// ...otherwise we make a scraper and transformer
|
|
htmlFilterContentScraper scraper = new htmlFilterContentScraper(location);
|
|
OutputStream hfos = new htmlFilterOutputStream(null, scraper, null, false);
|
|
serverFileUtils.copy(sourceFile, hfos);
|
|
hfos.close();
|
|
return transformScraper(location, mimeType, scraper);
|
|
} else {
|
|
serverLog.logWarning("PARSER", "parseSource2: wrong mime type");
|
|
return null;
|
|
}
|
|
} catch (Exception e) {
|
|
serverLog.logSevere("PARSER", "parseSource2: " + e.getMessage(), e);
|
|
return null;
|
|
} finally {
|
|
if (theParser != null) {
|
|
try { plasmaParser.theParserPool.returnObject(mimeType, theParser); } catch (Exception e) { }
|
|
}
|
|
}
|
|
}
|
|
|
|
public plasmaParserDocument transformScraper(URL location, String mimeType, htmlFilterContentScraper scraper) {
|
|
try {
|
|
String[] sections = new String[scraper.getHeadlines(1).length + scraper.getHeadlines(2).length + scraper.getHeadlines(3).length + scraper.getHeadlines(4).length];
|
|
int p = 0;
|
|
for (int i = 1; i <= 4; i++) for (int j = 0; j < scraper.getHeadlines(i).length; j++) sections[p++] = scraper.getHeadlines(i)[j];
|
|
plasmaParserDocument ppd = new plasmaParserDocument(new URL(htmlFilterContentScraper.urlNormalform(location)),
|
|
mimeType, null, null, scraper.getTitle(),
|
|
sections, null,
|
|
scraper.getText(), scraper.getAnchors(), scraper.getImages());
|
|
//scraper.close();
|
|
return ppd;
|
|
} catch (MalformedURLException e) {
|
|
//e.printStackTrace();
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This function is used to determine the parser class that should be used for a given
|
|
* mimetype ...
|
|
* @param mimeType
|
|
* @return
|
|
*/
|
|
private Parser getParser(String mimeType) {
|
|
|
|
mimeType = getRealMimeType(mimeType);
|
|
try {
|
|
|
|
// determining the proper parser class name for the mimeType
|
|
String parserClassName = null;
|
|
ParserInfo parserInfo = null;
|
|
synchronized (plasmaParser.availableParserList) {
|
|
if (plasmaParser.availableParserList.containsKey(mimeType)) {
|
|
parserInfo = (ParserInfo)plasmaParser.availableParserList.get(mimeType);
|
|
parserClassName = parserInfo.parserClassName;
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// fetching a new parser object from pool
|
|
Parser theParser = (Parser) theParserPool.borrowObject(parserClassName);
|
|
|
|
// checking if the created parser really supports the given mimetype
|
|
Hashtable supportedMimeTypes = theParser.getSupportedMimeTypes();
|
|
if ((supportedMimeTypes != null) && (supportedMimeTypes.containsKey(mimeType))) {
|
|
parserInfo.incUsageCounter();
|
|
return theParser;
|
|
}
|
|
theParserPool.returnObject(parserClassName,theParser);
|
|
|
|
} catch (Exception e) {
|
|
System.err.println("ERROR: Unable to load the correct parser for type " + mimeType);
|
|
}
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
/*
|
|
public static String urlNormalform(URL url) {
|
|
if (url == null) return null;
|
|
return urlNormalform(url.toString());
|
|
}
|
|
|
|
public static String urlNormalform(String us) {
|
|
return htmlFilterContentScraper.urlNormalform(us);
|
|
}
|
|
*/
|
|
|
|
static Map allReflinks(Map links) {
|
|
// we find all links that are part of a reference inside a url
|
|
HashMap v = new HashMap();
|
|
Iterator i = links.keySet().iterator();
|
|
String s;
|
|
int pos;
|
|
loop: while (i.hasNext()) {
|
|
s = (String) i.next();
|
|
if ((pos = s.toLowerCase().indexOf("http://",7)) > 0) {
|
|
i.remove();
|
|
s = s.substring(pos);
|
|
while ((pos = s.toLowerCase().indexOf("http://",7)) > 0) s = s.substring(pos);
|
|
if (!(v.containsKey(s))) v.put(s, "ref");
|
|
continue loop;
|
|
}
|
|
if ((pos = s.toLowerCase().indexOf("/www.",7)) > 0) {
|
|
i.remove();
|
|
s = "http:/" + s.substring(pos);
|
|
while ((pos = s.toLowerCase().indexOf("/www.",7)) > 0) s = "http:/" + s.substring(pos);
|
|
if (!(v.containsKey(s))) v.put(s, "ref");
|
|
continue loop;
|
|
}
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static Map allSubpaths(Map links) {
|
|
HashMap v = new HashMap();
|
|
Iterator i = links.keySet().iterator();
|
|
String s;
|
|
int pos;
|
|
while (i.hasNext()) {
|
|
s = (String) i.next();
|
|
if (s.endsWith("/")) s = s.substring(0, s.length() - 1);
|
|
pos = s.lastIndexOf("/");
|
|
while (pos > 8) {
|
|
s = s.substring(0, pos + 1);
|
|
if (!(v.containsKey(s))) v.put(s, "sub");
|
|
s = s.substring(0, pos);
|
|
pos = s.lastIndexOf("/");
|
|
}
|
|
}
|
|
return v;
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
//javac -classpath lib/commons-collections.jar:lib/commons-pool-1.2.jar -sourcepath source source/de/anomic/plasma/plasmaParser.java
|
|
//java -cp source:lib/commons-collections.jar:lib/commons-pool-1.2.jar de.anomic.plasma.plasmaParser bug.html bug.out
|
|
try {
|
|
File contentFile = null;
|
|
URL contentURL = null;
|
|
String contentMimeType = "application/octet-stream";
|
|
|
|
if (args.length < 2) {
|
|
System.err.println("Usage: java de.anomic.plasma.plasmaParser (-f filename|-u URL) [-m mimeType]");
|
|
}
|
|
|
|
String mode = args[0];
|
|
if (mode.equalsIgnoreCase("-f")) {
|
|
contentFile = new File(args[1]);
|
|
contentURL = contentFile.toURL();
|
|
} else if (mode.equalsIgnoreCase("-u")) {
|
|
contentURL = new URL(args[1]);
|
|
|
|
// downloading the document content
|
|
byte[] contentBytes = httpc.singleGET(contentURL, contentURL.getHost(), 10000, null, null, null);
|
|
|
|
contentFile = File.createTempFile("content",".tmp");
|
|
contentFile.deleteOnExit();
|
|
serverFileUtils.write(contentBytes, contentFile);
|
|
}
|
|
|
|
if ((args.length == 4)&&(args[2].equalsIgnoreCase("-m"))) {
|
|
contentMimeType = args[3];
|
|
}
|
|
|
|
// creating a plasma parser
|
|
plasmaParser theParser = new plasmaParser();
|
|
|
|
// configuring the realtime parsable mimeTypes
|
|
plasmaParser.initRealtimeParsableMimeTypes("application/xhtml+xml,text/html,text/plain");
|
|
|
|
// configure all other supported mimeTypes
|
|
plasmaParser.enableAllParsers(PARSER_MODE_PROXY);
|
|
|
|
// parsing the content
|
|
plasmaParserDocument document = theParser.parseSource(contentURL, contentMimeType, contentFile);
|
|
|
|
// printing out all parsed sentences
|
|
if (document != null) {
|
|
// found text
|
|
String[] sentences = document.getSentences();
|
|
if (sentences != null) for (int i = 0; i < sentences.length; i++) System.out.println("line " + i + ":" + sentences[i]);
|
|
|
|
// found links
|
|
int anchorNr = 0;
|
|
Map anchors = document.getAnchors();
|
|
Iterator anchorIter = anchors.keySet().iterator();
|
|
while (anchorIter.hasNext()) {
|
|
String key = (String) anchorIter.next();
|
|
System.out.println("URL " + anchorNr + ":\t" + key + " | " + anchors.get(key));
|
|
anchorNr++;
|
|
}
|
|
}
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
private static void enableAllParsers(String parserMode) {
|
|
if (!PARSER_MODE.contains(parserMode)) throw new IllegalArgumentException();
|
|
|
|
plasmaParserConfig config = (plasmaParserConfig) parserConfigList.get(parserMode);
|
|
if (config == null) {
|
|
config = new plasmaParserConfig(parserMode);
|
|
parserConfigList.put(parserMode, config);
|
|
}
|
|
config.enableAllParsers();
|
|
}
|
|
|
|
public static boolean supportedContent(URL url, String mimeType) {
|
|
if (url == null) throw new NullPointerException();
|
|
|
|
Iterator configs = parserConfigList.values().iterator();
|
|
while (configs.hasNext()) {
|
|
plasmaParserConfig currentConfig = (plasmaParserConfig) configs.next();
|
|
synchronized (currentConfig.enabledParserList) {
|
|
if (currentConfig.supportedContent(url, mimeType)) return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public static boolean supportedContent(String parserMode, URL url, String mimeType) {
|
|
if (!PARSER_MODE.contains(parserMode)) throw new IllegalArgumentException();
|
|
if (url == null) throw new NullPointerException();
|
|
|
|
plasmaParserConfig config = (plasmaParserConfig) parserConfigList.get(parserMode);
|
|
return (config == null)?false:config.supportedContent(url, mimeType);
|
|
}
|
|
|
|
public static void initParseableMimeTypes(String parserMode, String configStr) {
|
|
if (!PARSER_MODE.contains(parserMode)) throw new IllegalArgumentException();
|
|
|
|
plasmaParserConfig config = (plasmaParserConfig) parserConfigList.get(parserMode);
|
|
if (config == null) {
|
|
config = new plasmaParserConfig(parserMode);
|
|
parserConfigList.put(parserMode, config);
|
|
}
|
|
config.initParseableMimeTypes(configStr);
|
|
}
|
|
|
|
public static String[] setEnabledParserList(String parserMode, Set mimeTypeSet) {
|
|
if (!PARSER_MODE.contains(parserMode)) throw new IllegalArgumentException();
|
|
|
|
plasmaParserConfig config = (plasmaParserConfig) parserConfigList.get(parserMode);
|
|
if (config == null) {
|
|
config = new plasmaParserConfig(parserMode);
|
|
parserConfigList.put(parserMode, config);
|
|
}
|
|
return config.setEnabledParserList(mimeTypeSet);
|
|
}
|
|
|
|
public static boolean supportedFileExtContains(String fileExt) {
|
|
Iterator configs = parserConfigList.values().iterator();
|
|
while (configs.hasNext()) {
|
|
plasmaParserConfig currentConfig = (plasmaParserConfig) configs.next();
|
|
synchronized (currentConfig.enabledParserList) {
|
|
if (currentConfig.supportedFileExtContains(fileExt)) return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public static boolean supportedMimeTypesContains(String mimeType) {
|
|
Iterator configs = parserConfigList.values().iterator();
|
|
while (configs.hasNext()) {
|
|
plasmaParserConfig currentConfig = (plasmaParserConfig) configs.next();
|
|
synchronized (currentConfig.enabledParserList) {
|
|
if (currentConfig.supportedMimeTypesContains(mimeType)) return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
final class plasmaParserFactory implements KeyedPoolableObjectFactory {
|
|
|
|
public plasmaParserFactory() {
|
|
super();
|
|
}
|
|
|
|
/**
|
|
* @see org.apache.commons.pool.PoolableObjectFactory#makeObject()
|
|
*/
|
|
public Object makeObject(Object key) throws Exception {
|
|
|
|
if (!(key instanceof String))
|
|
throw new IllegalArgumentException("The object key must be of type string.");
|
|
|
|
// loading class by name
|
|
Class moduleClass = Class.forName((String)key);
|
|
|
|
// instantiating class
|
|
Parser theParser = (Parser) moduleClass.newInstance();
|
|
|
|
// setting logger that should by used
|
|
String parserShortName = ((String)key).substring("de.anomic.plasma.parser.".length(),((String)key).lastIndexOf("."));
|
|
|
|
serverLog theLogger = new serverLog("PARSER." + parserShortName.toUpperCase());
|
|
theParser.setLogger(theLogger);
|
|
|
|
return theParser;
|
|
}
|
|
|
|
/**
|
|
* @see org.apache.commons.pool.PoolableObjectFactory#destroyObject(java.lang.Object)
|
|
*/
|
|
public void destroyObject(Object key, Object obj) {
|
|
/*
|
|
if (obj instanceof Parser) {
|
|
Parser theParser = (Parser) obj;
|
|
}
|
|
*/
|
|
}
|
|
|
|
/**
|
|
* @see org.apache.commons.pool.PoolableObjectFactory#validateObject(java.lang.Object)
|
|
*/
|
|
public boolean validateObject(Object key, Object obj) {
|
|
if (obj instanceof Parser) {
|
|
//Parser theParser = (Parser) obj;
|
|
return true;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param obj
|
|
*
|
|
*/
|
|
public void activateObject(Object key, Object obj) {
|
|
//log.debug(" activateObject...");
|
|
}
|
|
|
|
/**
|
|
* @param obj
|
|
*
|
|
*/
|
|
public void passivateObject(Object key, Object obj) {
|
|
//log.debug(" passivateObject..." + obj);
|
|
if (obj instanceof Parser) {
|
|
Parser theParser = (Parser) obj;
|
|
theParser.reset();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
final class plasmaParserPool extends GenericKeyedObjectPool {
|
|
|
|
public plasmaParserPool(plasmaParserFactory objFactory,
|
|
GenericKeyedObjectPool.Config config) {
|
|
super(objFactory, config);
|
|
}
|
|
|
|
|
|
public Object borrowObject(Object key) throws Exception {
|
|
return super.borrowObject(key);
|
|
}
|
|
|
|
public void returnObject(Object key, Object borrowed) throws Exception {
|
|
super.returnObject(key,borrowed);
|
|
}
|
|
}
|