001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.web;
018
019import org.apache.activemq.broker.BrokerRegistry;
020import org.apache.activemq.broker.BrokerService;
021
022/**
023 * A facade for the broker in the same JVM and ClassLoader
024 * 
025 * 
026 */
027public class SingletonBrokerFacade extends LocalBrokerFacade {
028    public SingletonBrokerFacade() {
029        super(findSingletonBroker());
030    }
031
032    protected static BrokerService findSingletonBroker() {
033        BrokerService broker = BrokerRegistry.getInstance().findFirst();
034        if (broker == null) {
035            throw new IllegalArgumentException("No BrokerService is registered with the BrokerRegistry. Are you sure there is a configured broker in the same ClassLoader?");
036        }
037        return broker;
038    }
039}