/*  * 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. *  */package org.quartz.simpl;import java.net.InetAddress;import org.quartz.SchedulerException;import org.quartz.spi.InstanceIdGenerator;/** * The default InstanceIdGenerator used by Quartz when instance id is to be * automatically generated.  Instance id is of the form HOSTNAME + CURRENT_TIME. *  * @see InstanceIdGenerator * @see HostnameInstanceIdGenerator */public class SimpleInstanceIdGenerator implements InstanceIdGenerator {    public String generateInstanceId() throws SchedulerException {        try {            return InetAddress.getLocalHost().getHostName() + System.currentTimeMillis();        } catch (Exception e) {            throw new SchedulerException("Couldn't get host name!", e);        }    }}