RC9/qpid/java/broker/src/main/java/org/apache/qpid/server/queue/AsyncDeliveryConfig.java

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.qpid.server.queue;

import java.util.concurrent.Executor;
import java.util.concurrent.Executors;

import org.apache.qpid.configuration.Configured;
import org.apache.qpid.server.registry.ApplicationRegistry;

public class AsyncDeliveryConfig
{
    private Executor _executor;

    @Configured(path = "delivery.poolsize", defaultValue = "0")
    public int poolSize;

    public Executor getExecutor()
    {
        if (_executor == null)
        {
            if (poolSize > 0)
            {
                _executor = Executors.newFixedThreadPool(poolSize);
            }
            else
            {
                _executor = Executors.newCachedThreadPool();
            }
        }
        return _executor;
    }

    public static Executor getAsyncDeliveryExecutor()
    {
        return ApplicationRegistry.getInstance().getConfiguredObject(AsyncDeliveryConfig.class).getExecutor();
    }
}