/* * Copyright (c) 2005, John Mettraux, OpenWFE.org * All rights reserved. *  * Redistribution and use in source and binary forms, with or without  * modification, are permitted provided that the following conditions are met: *  * . Redistributions of source code must retain the above copyright notice, this *   list of conditions and the following disclaimer.   *  * . Redistributions in binary form must reproduce the above copyright notice,  *   this list of conditions and the following disclaimer in the documentation  *   and/or other materials provided with the distribution. *  * . Neither the name of the "OpenWFE" nor the names of its contributors may be *   used to endorse or promote products derived from this software without *   specific prior written permission. *  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE  * POSSIBILITY OF SUCH DAMAGE. * * $Id: MonitorMap.java,v 1.2 2005/05/17 16:40:14 jmettraux Exp $ *///// MonitorMap.java//// john.mettraux@openwfe.org//// generated with // jtmpl 1.1.01 2004/05/19 (john.mettraux@openwfe.org)//package openwfe.org.misc;import openwfe.org.Cache;/** * This class provides a map for monitors (synchronization tools). * * <p><font size=2>CVS Info : * <br>$Author: jmettraux $ * <br>$Id: MonitorMap.java,v 1.2 2005/05/17 16:40:14 jmettraux Exp $ </font> * * @author john.mettraux@openwfe.org */public class MonitorMap{    /*    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger        .getLogger(MonitorMap.class.getName());    */    //    // CONSTANTS & co    //    // FIELDS    private Cache map = null;    //    // CONSTRUCTORS    /**     * Builds a monitor map with a capacity of 100 references.     */    public MonitorMap ()    {        super();        this.map = new Cache();    }    /**     * Builds a monitor map with a given capacity.     */    public MonitorMap (final int cacheSize)    {        super();        this.map = new Cache(cacheSize);    }    //    // METHODS    /**     * Returns a monitor (to use with a 'synchronized' keyword) for a given     * identifier.     */    public synchronized Object getMonitor (final Object identifier)    {        Object monitor = this.map.get(identifier);        if (monitor == null)        {            monitor = new Object();            this.map.put(identifier, monitor);        }        return monitor;    }    //    // STATIC METHODS    //    // INNER CLASSES}