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/*******************************************************************************
* Copyright (c) 2008, 2010 VMware Inc.
* 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:
* VMware Inc. - initial contribution
*******************************************************************************/
package org.eclipse.virgo.medic.log;
import org.aspectj.lang.JoinPoint;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* An aspect that will advise any method with entry and exit trace logging.
*
* <strong>Concurrent Semantics</strong><br />
*
* Threadsafe
*
*/
public aspect EntryExitTrace pertypewithin(*) {
private volatile Logger logger;
pointcut performingEntryExitTrace() : cflowbelow(adviceexecution() && within(EntryExitTrace));
pointcut medic() : within(org.eclipse.virgo.medic..*);
pointcut util() : within(org.eclipse.virgo.util..*);
pointcut logback() : within(ch.qos.logback..*) || within(org.slf4j.impl..*);
pointcut infoCandidate() : execution(public * *(..)) && !medic() && !util() && !logback() && !performingEntryExitTrace();
pointcut debugCandidate() : execution(!public !private * *(..)) && !medic() && !util() && !logback() && !performingEntryExitTrace();
pointcut traceCandidate() : execution(private * *(..)) && !medic() && !util() && !logback() && !performingEntryExitTrace();
before() : infoCandidate() {
getLogger(thisJoinPointStaticPart).info("{} {}", ">", getSignature(thisJoinPointStaticPart));
}
after() returning : infoCandidate() {
getLogger(thisJoinPointStaticPart).info("{} {}", "<", getSignature(thisJoinPointStaticPart));
}
after() throwing(Throwable t) : infoCandidate() {
Logger logger = getLogger(thisJoinPointStaticPart);
if (logger.isInfoEnabled()) {
logger.info(String.format("< %s", getSignature(thisJoinPointStaticPart)), t);
}
}
before() : debugCandidate() {
getLogger(thisJoinPointStaticPart).debug("{} {}", ">", getSignature(thisJoinPointStaticPart));
}
after() returning : debugCandidate() {
getLogger(thisJoinPointStaticPart).debug("{} {}", "<", getSignature(thisJoinPointStaticPart));
}
after() throwing(Throwable t) : debugCandidate() {
Logger logger = getLogger(thisJoinPointStaticPart);
if (logger.isDebugEnabled()) {
logger.debug(String.format("< %s", getSignature(thisJoinPointStaticPart)), t);
}
}
before() : traceCandidate() {
getLogger(thisJoinPointStaticPart).trace("{} {}", ">", getSignature(thisJoinPointStaticPart));
}
after() returning : traceCandidate() {
getLogger(thisJoinPointStaticPart).trace("{} {}", "<", getSignature(thisJoinPointStaticPart));
}
after() throwing(Throwable t) : traceCandidate() {
Logger logger = getLogger(thisJoinPointStaticPart);
if (logger.isTraceEnabled()) {
logger.trace(String.format("< %s", getSignature(thisJoinPointStaticPart)), t);
}
}
private Logger getLogger(JoinPoint.StaticPart sp) {
if (this.logger == null) {
this.logger = LoggerFactory.getLogger(sp.getSignature().getDeclaringType());
}
return this.logger;
}
private String getSignature(JoinPoint.StaticPart sp) {
return sp.getSignature().toLongString();
}
}
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