/*
 * ICESOFT COMMERCIAL SOURCE CODE LICENSE V 1.1
 *
 * The contents of this file are subject to the ICEsoft Commercial Source
 * Code License Agreement V1.1 (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.icesoft.com/license/commercial-source-v1.1.html
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations under
 * the License.
 *
 * Copyright 2009-2015 ICEsoft Technologies Canada, Corp. All Rights Reserved.
 */
package com.icesoft.util;

import java.util.logging.Level;
import java.util.logging.Logger;

public class ThreadFactory
implements java.util.concurrent.ThreadFactory {
    private static final Logger LOGGER = Logger.getLogger(ThreadFactory.class.getName());

    private final Object lock = new Object();

    private int counter;
    private boolean daemon = true;
    private String prefix = "Thread";

    public ThreadFactory() {
        // do nothing.
    }

    /**
     * <p>
     *   Gets the prefix of the name of threads to be created through this
     *   <code>ThreadFactory</code>.
     * </p>
     *
     * @return     the prefix.
     * @see        #setPrefix(String)
     */
    public String getPrefix() {
        return prefix;
    }

    /**
     * <p>
     *   Checks if threads to be created through this <code>ThreadFactory</code>
     *   are daemon threads.
     * </p>
     *
     * @return     <code>true</code> if threads to be created are daemon
     *             threads, <code>false</code> if not.
     * @see        #setDaemon(boolean)
     */
    public boolean isDaemon() {
        return daemon;
    }

    public Thread newThread(final Runnable runnable) {
        Thread _thread;
        synchronized (lock) {
            _thread = new Thread(runnable, prefix + " [" + ++counter + "]");
        }
        _thread.setDaemon(daemon);
//        try {
//            /*
//             * We attempt to set the context class loader because some J2EE
//             * containers don't seem to set this properly, which leads to
//             * important classes not being found. However, other J2EE containers
//             * see this as a security violation.
//             */
//            _thread.setContextClassLoader(runnable.getClass().getClassLoader());
//        } catch (SecurityException exception) {
//            /*
//             * If the current security policy does not allow this, we have to
//             * hope that the appropriate class loader settings were transferred
//             * to this new thread.
//             */
//            if (LOGGER.isLoggable(Level.FINEST)) {
//                LOGGER.log(
//                    Level.FINEST,
//                    "Setting the context class loader is not permitted.",
//                    exception);
//            }
//        }
        if (LOGGER.isLoggable(Level.FINE)) {
            LOGGER.log(Level.FINE, "New thread: " + _thread.getName());
        }
        return _thread;
    }

    /**
     * <p>
     *   Sets if threads to be created through this <code>ThreadFactory</code>
     *   are daemon threads according to the specified <code>daemon</code>
     *   value.
     * </p>
     *
     * @param      daemon
     *                 the new daemon value.
     * @see        #isDaemon()
     */
    public void setDaemon(final boolean daemon) {
        this.daemon = daemon;
    }

    /**
     * <p>
     *   Sets the prefix of the name of threads to be created through this
     *   <code>ThreadFactory</code> to the specified <code>prefix</code>.
     * </p>
     *
     * @param      prefix
     *                 the new prefix.
     * @see        #getPrefix()
     */
    public void setPrefix(final String prefix) {
        this.prefix = prefix;
    }
}
