/*  * Copyright 2004-2005 OpenSymphony  *  * 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. *  *//* * Previously Copyright (c) 2001-2004 James House */package org.quartz.simpl;import java.util.Date;import org.quartz.SchedulerConfigException;import org.quartz.spi.TimeBroker;/** * <p> * The interface to be implemented by classes that want to provide a mechanism * by which the <code>{@link org.quartz.core.QuartzScheduler}</code> can * reliably determine the current time. * </p> *  * <p> * In general, the default implementation of this interface (<code>{@link org.quartz.simpl.SimpleTimeBroker}</code>- * which simply uses <code>System.getCurrentTimeMillis()</code> )is * sufficient. However situations may exist where this default scheme is * lacking in its robustsness - especially when Quartz is used in a clustered * configuration. For example, if one or more of the machines in the cluster * has a system time that varies by more than a few seconds from the clocks on * the other systems in the cluster, scheduling confusion will result. * </p> *  * @see org.quartz.core.QuartzScheduler *  * @author James House */public class SimpleTimeBroker implements TimeBroker {    /*     * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     *      * Interface.     *      * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     */    /**     * <p>     * Get the current time, simply using <code>new Date()</code>.     * </p>     */    public Date getCurrentTime() {        return new Date();    }    public void initialize() throws SchedulerConfigException {        // do nothing...    }    public void shutdown() {        // do nothing...    }}