//LogalizerHandler.java
//-------------------------------------
//part of YACY
//(C) by Michael Peter Christen; mc@anomic.de
//first published on http://www.anomic.de
//Frankfurt, Germany, 2004
//
//This file ist contributed by Matthias Soehnholz
//last major change: $LastChangedDate$ by $LastChangedBy$
//Revision: $LastChangedRevision$
//
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or
//(at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
//Using this software in any meaning (reading, learning, copying, compiling,
//running) means that you agree that the Author(s) is (are) not responsible
//for cost, loss of data or any harm that may be caused directly or indirectly
//by usage of this softare or this documentation. The usage of this software
//is on your own risk. The installation and usage (starting/running) of this
//software may allow other people or application to access your computer and
//any attached devices and is highly dependent on the configuration of the
//software which must be done by the user of the software; the author(s) is
//(are) also not responsible for proper configuration and usage of the
//software, even if provoked by documentation provided together with
//the software.
//
//Any changes to this file according to the GPL as documented in the file
//gpl.txt aside this file in the shipment you received can be done to the
//lines that follows this copyright notice here, but changes must not be
//done inside the copyright notive above. A re-distribution must contain
//the intact and unchanged copyright notice.
//Contributions and changes to the program code must be marked as such.
package de.anomic.server.logging;
import java.io.File;
import java.io.FilenameFilter;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Set;
import java.util.logging.Handler;
import java.util.logging.LogManager;
import java.util.logging.LogRecord;
import de.anomic.plasma.plasmaParser;
import de.anomic.server.logging.logParsers.LogParser;
public class LogalizerHandler extends Handler {
public static boolean enabled=false;
public static boolean debug=false;
private String logParserPackage;
private HashMap<String, Object> parsers;
public LogalizerHandler() {
super();
configure();
}
private HashMap<String, Object> loadParsers() {
HashMap<String, Object> parsers = new HashMap<String, Object>();
try {
if (debug) System.out.println("Searching for additional content parsers in package " + logParserPackage);
// getting an uri to the parser subpackage
String packageURI = plasmaParser.class.getResource("/"+logParserPackage.replace('.','/')).toString();
if (debug) System.out.println("LogParser directory is " + packageURI);
File parserDir = new File(new URI(packageURI));
//System.out.println(parserDir.toString());
String [] parserDirFiles = parserDir.list(parserNameFilter);
if(parserDirFiles == null && debug) {
System.out.println("Can't find any parsers in "+parserDir.getAbsolutePath());
}
//System.out.println(parserDirFiles.length);
for (int i=0; i<parserDirFiles.length; i++) {
String tmp = parserDirFiles[i].substring(0,parserDirFiles[i].indexOf(".class"));
Class<?> tempClass = Class.forName(logParserPackage+"."+tmp);
if (tempClass.isInterface()) {
if (debug) System.out.println(tempClass.getName() + " is an Interface");
} else {
Object theParser = tempClass.newInstance();
if (theParser instanceof LogParser) {
LogParser theLogParser = (LogParser) theParser;
//System.out.println(bla.getName() + " is a logParser");
parsers.put(theLogParser.getParserType(), theParser);
if (debug) System.out.println("Added " + theLogParser.getClass().getName() + " as " + theLogParser.getParserType() + " Parser.");
}
else {
//System.out.println(bla.getName() + " is not a logParser");
if (debug) System.out.println("Rejected " + tempClass.getName() + ". Class does not implement the logParser-Interface");
}
}
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (URISyntaxException e) {
e.printStackTrace();
}
return parsers;
}
/**
* Get any configuration properties set
*/
private void configure() {
LogManager manager = LogManager.getLogManager();
String className = getClass().getName();
if(manager.getProperty(className + ".enabled").equalsIgnoreCase("true")) enabled = true;
if(manager.getProperty(className + ".debug").equalsIgnoreCase("true")) debug = true;
logParserPackage = manager.getProperty(className + ".parserPackage");
parsers = loadParsers();
}
public void publish(LogRecord record) {
if (enabled) {
LogParser temp = (LogParser) parsers.get(record.getLoggerName());
if (temp != null) {
int returnV = temp.parse(record.getLevel().toString(), record.getMessage());
//if (debug) System.out.println("Logalizertest: " + returnV + " --- " + record.getLevel() + " --- " + record.getMessage());
if (debug) System.out.println("Logalizertest: " + returnV + " --- " + record.getLevel());
}
}
}
public Set<String> getParserNames() {
return parsers.keySet();
}
public LogParser getParser(int number) {
String o;
Iterator<String> it = parsers.keySet().iterator();
int i = 0;
while (it.hasNext()) {
o = it.next();
if (i++ == number)
return (LogParser) parsers.get(o);
}
return null;
}
public Hashtable<String, Object> getParserResults(LogParser parsername) {
return parsername.getResults();
}
public void close() throws SecurityException {
// TODO Auto-generated method stub
}
public void flush() {
// TODO Auto-generated method stub
}
private static final FilenameFilter parserNameFilter = new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.matches(".*.class");
}
};
}