Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2013 Brien L. Wheeler (brienwheeler@yahoo.com) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.brienwheeler.lib.monitor.work.impl; import com.brienwheeler.lib.monitor.work.IWorkMonitorProvider; import com.brienwheeler.lib.monitor.work.MonitoredWork; import com.brienwheeler.lib.monitor.work.WorkMonitor; import com.brienwheeler.lib.util.ValidationUtils; import org.aspectj.lang.ProceedingJoinPoint; import org.aspectj.lang.annotation.Around; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Pointcut; import org.aspectj.lang.reflect.MethodSignature; @Aspect public class MonitoredWorkAspect { @Pointcut("execution(@com.brienwheeler.lib.monitor.work.MonitoredWork * *(..))") public void monitoredWorkPointcut() { } @SuppressWarnings({ "unchecked", "rawtypes" }) @Around("monitoredWorkPointcut()") public Object aroundMonitoredWork(final ProceedingJoinPoint joinPoint) throws InterruptedException { ValidationUtils.assertTrue(joinPoint.getTarget() instanceof IWorkMonitorProvider, "@MonitoredWork target must be subclass of IWorkMonitorProvider"); ValidationUtils.assertTrue(joinPoint.getSignature() instanceof MethodSignature, "@MonitoredWork signature must be a method"); final WorkMonitor workMonitor = ((IWorkMonitorProvider) joinPoint.getTarget()).getWorkMonitor(); MethodSignature signature = (MethodSignature) joinPoint.getSignature(); MonitoredWork annotation = signature.getMethod().getAnnotation(MonitoredWork.class); final String workName = annotation != null && !annotation.value().isEmpty() ? annotation.value() : signature.getName(); long start = System.currentTimeMillis(); try { Object ret = joinPoint.proceed(); workMonitor.recordWorkOk(workName, System.currentTimeMillis() - start); return ret; } catch (InterruptedException e) { workMonitor.recordWorkError(workName, System.currentTimeMillis() - start); Thread.currentThread().interrupt(); throw e; } catch (RuntimeException e) { workMonitor.recordWorkError(workName, System.currentTimeMillis() - start); throw e; } catch (Error e) { workMonitor.recordWorkError(workName, System.currentTimeMillis() - start); throw e; } catch (Throwable e) { workMonitor.recordWorkError(workName, System.currentTimeMillis() - start); throw new RuntimeException(e); } } }