/*
 * PoolFactory.java February 2009
 *
 * Copyright (C) 2009, Niall Gallagher <niallg@users.sf.net>
 *
 * 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.simpleframework.util.thread;

import static org.simpleframework.util.thread.ThreadBuilder.build;

import java.util.concurrent.ThreadFactory;

/**
 * The <code>PoolFactory</code> object is used to create a thread factory that
 * will instantiate named threads. This provides a means to name the thread
 * started using the type of task the pool is required to execute.
 * 
 * @author Niall Gallagher
 */
class PoolFactory implements ThreadFactory {

    /**
     * This is the type of the task this pool will execute.
     */
    private final Class type;

    /**
     * Constructor for the <code>PoolFactory</code> object. This will provide a
     * thread factory that names the threads based on the type of
     * <code>Runnable</code> the pool executes. Each of the threads is given a
     * unique sequence number.
     * 
     * @param type
     *            this is the type of runnable this will execute
     */
    public PoolFactory(Class type) {
        this.type = type;
    }

    /**
     * This is used to create a new thread. The new thread will be given the
     * simple name of the <code>Runnable</code> class that it accepts. Each
     * thread is also given a unique sequence.
     * 
     * @param task
     *            this is the worker that the thread pool uses
     * 
     * @return this returns the thread that is to be used by this
     */
    @Override
    public Thread newThread(Runnable task) {
        return build(task, this.type);
    }
}