001    /** 
002     * 
003     * Copyright 2004 Protique Ltd
004     * 
005     * Licensed under the Apache License, Version 2.0 (the "License"); 
006     * you may not use this file except in compliance with the License. 
007     * 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     **/
018    package org.activemq.transport.http;
019    
020    import org.apache.commons.logging.Log;
021    import org.apache.commons.logging.LogFactory;
022    import org.activemq.io.TextWireFormat;
023    import org.activemq.io.WireFormat;
024    import org.activemq.transport.TransportChannel;
025    import org.activemq.transport.TransportChannelFactorySupport;
026    import org.activemq.transport.xstream.XStreamWireFormat;
027    import org.activemq.util.JMSExceptionHelper;
028    
029    import javax.jms.JMSException;
030    import java.net.MalformedURLException;
031    import java.net.URI;
032    import java.net.URISyntaxException;
033    
034    /**
035     * @version $Revision$
036     */
037    public class HttpTransportChannelFactory extends TransportChannelFactorySupport {
038        private static final Log log = LogFactory.getLog(HttpTransportChannelFactory.class);
039    
040        public TransportChannel create(WireFormat wireFormat, URI remoteLocation) throws JMSException {
041            try {
042                return create(wireFormat, remoteLocation, new URI("http://localhost:0"));
043            }
044            catch (URISyntaxException e) {
045                throw JMSExceptionHelper.newJMSException(e.getMessage(), e);
046            }
047        }
048    
049        public TransportChannel create(WireFormat wireFormat, URI remoteLocation, URI localLocation) throws JMSException {
050            try {
051                HttpTransportChannel channel = new HttpTransportChannel(asTextWireFormat(wireFormat), remoteLocation.toString());
052                return populateProperties(channel, remoteLocation);
053            }
054            catch (MalformedURLException e) {
055                throw JMSExceptionHelper.newJMSException(e.getMessage(), e);
056            }
057        }
058    
059        protected TextWireFormat asTextWireFormat(WireFormat wireFormat) {
060            if (wireFormat instanceof TextWireFormat) {
061                return (TextWireFormat) wireFormat;
062            }
063            log.trace("Not created with a TextWireFromat: " + wireFormat);
064            return new XStreamWireFormat();
065        }
066    
067        public boolean requiresEmbeddedBroker() {
068            return false;
069        }
070    
071    }