1 /*** 2 * 3 * Copyright 2004 Protique Ltd 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 **/ 18 package org.codehaus.activemq.transport; 19 20 import org.apache.commons.logging.Log; 21 import org.apache.commons.logging.LogFactory; 22 23 import javax.jms.JMSException; 24 import java.util.ArrayList; 25 import java.util.Iterator; 26 import java.util.List; 27 28 /*** 29 * An abstract base class useful for implementation inheritence 30 * 31 * @version $Revision: 1.3 $ 32 */ 33 public abstract class TransportServerChannelSupport implements TransportServerChannel { 34 35 private static final Log log = LogFactory.getLog(TransportServerChannelSupport.class); 36 37 private TransportChannelListener listener; 38 private List channels = new ArrayList(); 39 40 public void start() throws JMSException { 41 if (listener == null) { 42 throw new JMSException("Must have a TransportChannelListener attached!"); 43 } 44 } 45 46 public synchronized void stop() { 47 for (Iterator iter = channels.iterator(); iter.hasNext();) { 48 TransportChannel channel = (TransportChannel) iter.next(); 49 channel.stop(); 50 } 51 } 52 53 public void setTransportChannelListener(TransportChannelListener listener) { 54 this.listener = listener; 55 } 56 57 protected synchronized void addClient(TransportChannel channel) { 58 if (listener == null) { 59 log.warn("No listener attached, cannot add channel: " + channel); 60 } 61 else { 62 listener.addClient(channel); 63 channel.setTransportChannelListener(listener); 64 channels.add(channel); 65 } 66 } 67 }