Java tutorial
/* * Copyright 2014 David Leoni . * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.grazy.experimental.graspectj; import java.util.logging.Level; import java.util.logging.Logger; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.reflect.MethodSignature; /** * * @author David Leoni */ @Aspect public class MethodLogger { private static final Logger logger = Logger.getLogger("blabla"); @Around("execution(* *(..)) && @annotation(Loggable)") public Object around(ProceedingJoinPoint point) { long start = System.currentTimeMillis(); Object result; try { result = point.proceed(); logger.log(Level.INFO, "source location: {0}", point.getSourceLocation().toString()); logger.log(Level.INFO, "#%s(%s): %s in %[msec]s{0}{1}{2}{3}", new Object[] { MethodSignature.class.cast(point.getSignature()).getMethod().getName(), point.getArgs(), result, System.currentTimeMillis() - start }); return result; } catch (Throwable ex) { Logger.getLogger(MethodLogger.class.getName()).log(Level.SEVERE, null, ex); } throw new RuntimeException("ma non scassare la minchia"); } }