/*
* $Id$
*
* Copyright 2006, The jCoderZ.org Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the jCoderZ.org Project nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jcoderz.commons.logging;
import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.logging.LogManager;
import java.util.logging.LogRecord;
import org.jcoderz.commons.Loggable;
/**
* This class implements the default filter for filering the messages, which
* are to put onto the jms queue.
*
* @see JmsHandler
*
*/
public final class MessageIdFilter
extends LogFilterBase
{
/** The full qualified name of this class. */
private static final String CLASSNAME = MessageIdFilter.class.getName();
private static final String HEX_PREFIX = "0x";
private static final int HEX_NUMBER_BASE = 16;
private static final String JMS_MESSAGE_IDS_PROPERTY
= CLASSNAME + "." + "messageids";
private final Set mMessageIds = new HashSet();
/**
* Creates and configures a new isntance of this.
*/
public MessageIdFilter ()
{
configure();
}
/** {@inheritDoc} */
public boolean isLoggable (LogRecord record)
{
final boolean rc;
final Loggable loggable = getLoggable(record);
if (loggable != null
&& mMessageIds.contains(
new Integer(loggable.getLogMessageInfo().toInt())))
{
rc = true;
}
else
{
rc = false;
}
return rc;
}
// TODO: shouldn't this method catch a NumberFormatException?
private void configure ()
{
final String messageIds = LogManager.getLogManager()
.getProperty(JMS_MESSAGE_IDS_PROPERTY);
if ((messageIds != null) && (messageIds.length() > 0))
{
final StringTokenizer tokenizer
= new StringTokenizer(messageIds, " ,/t");
while (tokenizer.hasMoreTokens())
{
final String id = tokenizer.nextToken();
if (id.startsWith(HEX_PREFIX))
{
mMessageIds.add(Integer.valueOf(
id.substring(HEX_PREFIX.length()), HEX_NUMBER_BASE));
}
else
{
mMessageIds.add(Integer.valueOf(id));
}
}
}
}
}