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     */
017    package org.apache.activemq.web;
018    
019    import java.util.Collection;
020    import java.util.Collections;
021    
022    import org.apache.activemq.broker.jmx.ConnectionViewMBean;
023    import org.apache.activemq.broker.jmx.SubscriptionViewMBean;
024    
025    /**
026     * Query for a single connection.
027     * 
028     * @author ms
029     */
030    public class ConnectionQuery {
031    
032            private final BrokerFacade mBrokerFacade;
033            private String mConnectionID;
034    
035            public ConnectionQuery(BrokerFacade brokerFacade) {
036                    mBrokerFacade = brokerFacade;
037            }
038    
039            public void destroy() {
040                    // empty
041            }
042    
043            public void setConnectionID(String connectionID) {
044                    mConnectionID = connectionID;
045            }
046    
047            public String getConnectionID() {
048                    return mConnectionID;
049            }
050    
051            public ConnectionViewMBean getConnection() throws Exception {
052                    String connectionID = getConnectionID();
053                    if (connectionID == null)
054                            return null;
055                    return mBrokerFacade.getConnection(connectionID);
056            }
057    
058            public Collection<SubscriptionViewMBean> getConsumers() throws Exception {
059                    String connectionID = getConnectionID();
060                    if (connectionID == null)
061                            return Collections.emptyList();
062                    return mBrokerFacade.getConsumersOnConnection(connectionID);
063            }
064    
065    }