Java tutorial
/* * Copyright 2014 Stackify * * 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 com.stackify.metric.aop.aspectj; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import com.stackify.metric.MetricFactory; /** * CounterAndTimerAspect * @author Eric Martin */ @Aspect public class CounterAndTimerAspect { /** * Around advice for a CounterAndTimer metric * @param cata CounterAndTimer annotation * @return The underlying method's return * @throws Throwable */ @Around("execution(* *(..)) && @annotation(cata)") public Object around(final ProceedingJoinPoint joinPoint, final com.stackify.metric.aop.CounterAndTimer cata) throws Throwable { long start = System.currentTimeMillis(); try { return joinPoint.proceed(); } finally { MetricFactory.getCounterAndTimer(cata.category(), cata.name()).startMs(start); } } }