Java tutorial
/* * Copyright (C) 2007-2014 Crafter Software Corporation. * * 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 3 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, see <http://www.gnu.org/licenses/>. */ package org.craftercms.commons.logging; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; /** * Aspect that uses a {@link org.craftercms.commons.logging.MethodLogger} to log methods with * {@link org.craftercms.commons.logging.Logged} annotation (or all methods of a class, if used in a class). * * @author avasquez */ @Aspect public class LoggedAspect { protected MethodLogger methodLogger; public LoggedAspect() { methodLogger = new I10nMethodLogger(); } public void setMethodLogger(MethodLogger methodLogger) { this.methodLogger = methodLogger; } @Around("@within(org.craftercms.commons.logging.Logged) || @annotation(org.craftercms.commons.logging.Logged)") public Object logMethod(ProceedingJoinPoint pjp) throws Throwable { String className = pjp.getTarget().getClass().getName(); String methodName = pjp.getSignature().getName(); Object[] args = pjp.getArgs(); methodLogger.logEntry(className, methodName, args); try { Object returnValue = pjp.proceed(); methodLogger.logExit(className, methodName, returnValue); return returnValue; } catch (Throwable e) { methodLogger.logException(className, methodName, e); throw e; } } }