KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > activemq > web > SingletonBrokerFacade


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.activemq.web;
19
20 import org.apache.activemq.broker.BrokerService;
21 import org.apache.activemq.broker.BrokerRegistry;
22
23 /**
24  * A facade for the broker in the same JVM and ClassLoader
25  *
26  * @version $Revision: 517706 $
27  */
28 public class SingletonBrokerFacade extends LocalBrokerFacade {
29     public SingletonBrokerFacade() {
30         super(findSingletonBroker());
31     }
32
33     protected static BrokerService findSingletonBroker() {
34         BrokerService broker = BrokerRegistry.getInstance().findFirst();
35         if (broker == null) {
36             throw new IllegalArgumentException JavaDoc("No BrokerService is registered with the BrokerRegistry." +
37                     " Are you sure there is a configured broker in the same ClassLoader?");
38         }
39         return broker;
40     }
41 }
42
Popular Tags