/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jbpm.executor.test;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import org.jbpm.executor.AsynchronousJobEvent;
import org.jbpm.executor.AsynchronousJobListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


public class CountDownAsyncJobListener implements AsynchronousJobListener {

    private static final Logger logger = LoggerFactory.getLogger(CountDownAsyncJobListener.class);
    private CountDownLatch latch;
    
    public CountDownAsyncJobListener(int threads) {
        this.latch = new CountDownLatch(threads);
    }
    
    public void waitTillCompleted() {
        try {
            latch.await();
        } catch (InterruptedException e) {
            logger.debug("Interrupted thread while waiting for all async jobs");
        }
    }
    
    public void waitTillCompleted(long timeOut) {
        try {
            latch.await(timeOut, TimeUnit.MILLISECONDS);
        } catch (InterruptedException e) {
            logger.debug("Interrupted thread while waiting for all async jobs");
        }
    }
    
    public void reset(int threads) {
        this.latch = new CountDownLatch(threads);
    }
    
    @Override
    public void beforeJobScheduled(AsynchronousJobEvent event) {

    }

    @Override
    public void afterJobScheduled(AsynchronousJobEvent event) {

    }

    @Override
    public void beforeJobExecuted(AsynchronousJobEvent event) {
    
    }

    @Override
    public void afterJobExecuted(AsynchronousJobEvent event) {
        latch.countDown();
    }

    @Override
    public void beforeJobCancelled(AsynchronousJobEvent event) {

    }

    @Override
    public void afterJobCancelled(AsynchronousJobEvent event) {
        latch.countDown();
    }

}
