com.brienwheeler.lib.svc.impl.GracefulShutdownAspect.java Source code

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Here is the source code for com.brienwheeler.lib.svc.impl.GracefulShutdownAspect.java

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/*
 * 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.svc.impl;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;

import com.brienwheeler.lib.util.ValidationUtils;

@Aspect
public class GracefulShutdownAspect {
    @Pointcut("execution(@com.brienwheeler.lib.svc.GracefulShutdown * *(..))")
    public void gracefulShutdownPointcut() {
    }

    @SuppressWarnings({ "unchecked", "rawtypes" })
    @Around("gracefulShutdownPointcut()")
    public Object aroundGracefulShutdown(final ProceedingJoinPoint joinPoint) {
        ValidationUtils.assertTrue(joinPoint.getTarget() instanceof StartableServiceBase,
                "@GracefulShutdown target must be subclass of StartableServiceBase");

        ServiceWork work = new ServiceWork() {
            @Override
            public Object doServiceWork() throws InterruptedException {
                try {
                    return joinPoint.proceed();
                } catch (InterruptedException e) {
                    throw e;
                } catch (RuntimeException e) {
                    throw e;
                } catch (Error e) {
                    throw e;
                } catch (Throwable e) {
                    throw new RuntimeException(e);
                }
            }
        };

        StartableServiceBase service = (StartableServiceBase) joinPoint.getTarget();
        return service.executeWithGracefulShutdown(work);
    }
}