/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License (the "License").

 * You may not use this file except in compliance with the License.

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.

 */

package com.oracle.solaris.vp.util.misc;

import java.util.concurrent.*;

/**

 * The {@code NamedThreadFactory} class adds a prefix to the names of the {@code

 * Thread}s produced by a wrapped {@code ThreadFactory}.

 */

public class NamedThreadFactory implements ThreadFactory {

    //

    // Instance data

    //

    private ThreadFactory factory;

    private String prefix;

    //

    // Constructors

    //

    /**

     * Constructs a {@code NamedThreadFactory} using the given prefix and thread

     * factory.

     */

    public NamedThreadFactory(String prefix, ThreadFactory factory) {

	this.prefix = prefix;

	this.factory = factory;

    }

    /**

     * Constructs a {@code NamedThreadFactory} using the given prefix and the

     * default thread factory.

     */

    public NamedThreadFactory(String prefix) {

	this(prefix, Executors.defaultThreadFactory());

    }

    //

    // ThreadFactory methods

    //

    @Override

    public Thread newThread(Runnable r) {

	Thread thread = factory.newThread(r);

	String prefix = this.prefix;

	if (prefix != null) {

	    thread.setName(prefix + thread.getName());

	}

	return thread;

    }

    //

    // NamedThreadFactory methods

    //

    public ThreadFactory getFactory() {

	return factory;

    }

    public void setFactory(ThreadFactory factory) {

	this.factory = factory;

    }

    public String getPrefix() {

	return prefix;

    }

    public void setPrefix(String prefix) {

	this.prefix = prefix;

    }

}