/*
* #%L
* Talend :: ESB :: Job :: Controller
* %%
* Copyright (C) 2011 - 2012 Talend Inc.
* %%
* 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.
* #L%
*/
package org.talend.esb.job.controller.internal;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Logger;
import org.talend.esb.job.controller.GenericOperation;
import routines.system.api.ESBEndpointRegistry;
import routines.system.api.TalendESBJobFactory;
/**
* Operation backed by potentially several concurrently running {@link TalendESBJob job} instances.
*
*/
public class MultiThreadedOperation extends AbstractOperation implements GenericOperation {
public static final Logger LOG = Logger.getLogger(MultiThreadedOperation.class.getName());
private final ExecutorService execService;
private final TalendESBJobFactory factory;
private final String name;
private final ESBEndpointRegistry endpointRegistry;
private AtomicBoolean started = new AtomicBoolean(false);
/**
* Create a <code>MultiThreadedOperation</code>.
*
* @param jobFactory job instance backing this operation, must not be <code>null</code>
* @param jobName
* @param esbEndpointRegistry
* @param executorService executor service to start job in separate Thread, must not be <code>null</code>
*/
public MultiThreadedOperation(TalendESBJobFactory jobFactory, String jobName,
ESBEndpointRegistry esbEndpointRegistry, ExecutorService executorService) {
factory = jobFactory;
name = jobName;
endpointRegistry = esbEndpointRegistry;
execService = executorService;
}
/**
* Start the operation by instantiating the first job instance in a separate Thread.
*
* @param arguments {@inheritDoc}
*/
@Override
public void start(String[] arguments) {
boolean notStarted = !started.getAndSet(true);
if (notStarted) {
start(new MultiInstanceWorkloadStrategy(factory, name, arguments, endpointRegistry, execService));
}
}
}