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/*
* Copyright (c) 2004-2005 QOS.ch
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, and/or sell copies of the Software, and to permit persons
* to whom the Software is furnished to do so, provided that the above
* copyright notice(s) and this permission notice appear in all copies of
* the Software and that both the above copyright notice(s) and this
* permission notice appear in supporting documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
* OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
* SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Except as contained in this notice, the name of a copyright holder
* shall not be used in advertising or otherwise to promote the sale, use
* or other dealings in this Software without prior written authorization
* of the copyright holder.
*
*/
package org.slf4j.osgi.logservice.impl;
import org.osgi.framework.Bundle;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.Version;
import org.osgi.service.log.LogService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* LogServiceImpl is a simple OSGi LogService implementation that delegates to a slf4j
* Logger.
*
* @author John Conlon
* @author Matt Bishop
*/
public class LogServiceImpl implements LogService {
private static final String UNKNOWN = "[Unknown]";
private final Logger delegate;
/**
* Creates a new instance of LogServiceImpl.
*
* @param bundle The bundle to create a new LogService for.
*/
public LogServiceImpl(Bundle bundle) {
String name = bundle.getSymbolicName();
Version version = bundle.getVersion();
if (version == null) {
version = Version.emptyVersion;
}
delegate = LoggerFactory.getLogger(name + '.' + version);
}
/*
* (non-Javadoc)
*
* @see org.osgi.service.log.LogService#log(int, java.lang.String)
*/
public void log(int level, String message) {
switch (level) {
case LOG_DEBUG:
delegate.debug(message);
break;
case LOG_ERROR:
delegate.error(message);
break;
case LOG_INFO:
delegate.info(message);
break;
case LOG_WARNING:
delegate.warn(message);
break;
default:
break;
}
}
/*
* (non-Javadoc)
*
* @see org.osgi.service.log.LogService#log(int, java.lang.String, java.lang.Throwable)
*/
public void log(int level, String message, Throwable exception) {
switch (level) {
case LOG_DEBUG:
delegate.debug(message, exception);
break;
case LOG_ERROR:
delegate.error(message, exception);
break;
case LOG_INFO:
delegate.info(message, exception);
break;
case LOG_WARNING:
delegate.warn(message, exception);
break;
default:
break;
}
}
/*
* (non-Javadoc)
*
* @see org.osgi.service.log.LogService#log(org.osgi.framework.ServiceReference, int, java.lang.String)
*/
public void log(ServiceReference sr, int level, String message) {
switch (level) {
case LOG_DEBUG:
if (delegate.isDebugEnabled()) {
delegate.debug(createMessage(sr, message));
}
break;
case LOG_ERROR:
if (delegate.isErrorEnabled()) {
delegate.error(createMessage(sr, message));
}
break;
case LOG_INFO:
if (delegate.isInfoEnabled()) {
delegate.info(createMessage(sr, message));
}
break;
case LOG_WARNING:
if (delegate.isWarnEnabled()) {
delegate.warn(createMessage(sr, message));
}
break;
default:
break;
}
}
/**
* Formats the log message to indicate the service sending it, if known.
*
* @param sr the ServiceReference sending the message.
* @param message The message to log.
* @return The formatted log message.
*/
private String createMessage(ServiceReference sr, String message) {
StringBuilder output = new StringBuilder();
if (sr != null) {
output.append('[').append(sr.toString()).append(']');
} else {
output.append(UNKNOWN);
}
output.append(message);
return output.toString();
}
/*
* (non-Javadoc)
*
* @see org.osgi.service.log.LogService#log(org.osgi.framework.ServiceReference, int, java.lang.String,
* java.lang.Throwable)
*/
public void log(ServiceReference sr, int level, String message, Throwable exception) {
switch (level) {
case LOG_DEBUG:
if (delegate.isDebugEnabled()) {
delegate.debug(createMessage(sr, message), exception);
}
break;
case LOG_ERROR:
if (delegate.isErrorEnabled()) {
delegate.error(createMessage(sr, message), exception);
}
break;
case LOG_INFO:
if (delegate.isInfoEnabled()) {
delegate.info(createMessage(sr, message), exception);
}
break;
case LOG_WARNING:
if (delegate.isWarnEnabled()) {
delegate.warn(createMessage(sr, message), exception);
}
break;
default:
break;
}
}
}
