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/***************************************************************************
* Copyright (c) 2004-2007 Eike Stepper, Germany.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.util.om.log;
import org.eclipse.net4j.util.om.OMLogHandler;
import org.eclipse.net4j.util.om.OMLogger;
import org.eclipse.net4j.util.om.OMLogger.Level;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import org.eclipse.internal.net4j.bundle.Net4j;
import org.eclipse.internal.net4j.bundle.OSGiBundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.log.LogService;
/**
* @author Eike Stepper
*/
public class OSGiLoggingBridge implements OMLogHandler
{
// @Singleton
public static final OSGiLoggingBridge INSTANCE = new OSGiLoggingBridge();
private static final ContextTracer TRACER = new ContextTracer(Net4j.DEBUG_OM, OSGiLoggingBridge.class);
protected OSGiLoggingBridge()
{
}
public void logged(OMLogger logger, Level level, String msg, Throwable t)
{
try
{
BundleContext bundleContext = ((OSGiBundle)logger.getBundle()).getBundleContext();
logged(bundleContext, level, msg, t);
}
catch (Exception ex)
{
if (TRACER.isEnabled())
{
TRACER.trace(ex);
}
}
}
public void logged(BundleContext bundleContext, Level level, String msg, Throwable t) throws Exception
{
LogService logService = getLogService(bundleContext);
logService.log(toOSGi(level), msg, t);
}
protected LogService getLogService(BundleContext bundleContext)
{
try
{
ServiceReference ref = bundleContext.getServiceReference(LogService.class.getName());
LogService logService = (LogService)bundleContext.getService(ref);
return logService;
}
catch (RuntimeException ex)
{
throw new IllegalStateException("Log service not found", ex); //$NON-NLS-1$
}
}
public static int toOSGi(Level level)
{
switch (level)
{
case ERROR:
return LogService.LOG_ERROR;
case WARN:
return LogService.LOG_WARNING;
case INFO:
return LogService.LOG_INFO;
case DEBUG:
return LogService.LOG_DEBUG;
default:
throw new IllegalArgumentException("Illegal log level: " + level); //$NON-NLS-1$
}
}
}
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