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.transport.http;
018    
019    import java.io.IOException;
020    import java.net.MalformedURLException;
021    import java.net.URI;
022    import java.net.URISyntaxException;
023    import java.util.HashMap;
024    import java.util.Map;
025    
026    import org.apache.activemq.transport.InactivityMonitor;
027    import org.apache.activemq.transport.Transport;
028    import org.apache.activemq.transport.TransportFactory;
029    import org.apache.activemq.transport.TransportLoggerFactory;
030    import org.apache.activemq.transport.TransportServer;
031    import org.apache.activemq.transport.util.TextWireFormat;
032    import org.apache.activemq.transport.xstream.XStreamWireFormat;
033    import org.apache.activemq.util.IOExceptionSupport;
034    import org.apache.activemq.util.IntrospectionSupport;
035    import org.apache.activemq.util.URISupport;
036    import org.apache.activemq.wireformat.WireFormat;
037    import org.slf4j.Logger;
038    import org.slf4j.LoggerFactory;
039    
040    public class HttpTransportFactory extends TransportFactory {
041    
042        private static final Logger LOG = LoggerFactory.getLogger(HttpTransportFactory.class);
043    
044        public TransportServer doBind(URI location) throws IOException {
045            try {
046                Map<String, String> options = new HashMap<String, String>(URISupport.parseParameters(location));
047                HttpTransportServer result = new HttpTransportServer(location, this);
048                Map<String, Object> transportOptions = IntrospectionSupport.extractProperties(options, "transport.");
049                result.setTransportOption(transportOptions);
050                return result;
051            } catch (URISyntaxException e) {
052                throw IOExceptionSupport.create(e);
053            }
054        }
055    
056        protected TextWireFormat asTextWireFormat(WireFormat wireFormat) {
057            if (wireFormat instanceof TextWireFormat) {
058                return (TextWireFormat)wireFormat;
059            }
060            LOG.trace("Not created with a TextWireFormat: " + wireFormat);
061            return new XStreamWireFormat();
062        }
063    
064        protected String getDefaultWireFormatType() {
065            return "xstream";
066        }
067    
068        protected Transport createTransport(URI location, WireFormat wf) throws IOException {
069            TextWireFormat textWireFormat = asTextWireFormat(wf);
070            // need to remove options from uri
071            URI uri;
072            try {
073                uri = URISupport.removeQuery(location);
074            } catch (URISyntaxException e) {
075                MalformedURLException cause = new MalformedURLException("Error removing query on " + location);
076                cause.initCause(e);
077                throw cause;
078            }
079            return new HttpClientTransport(textWireFormat, uri);
080        }
081    
082        @SuppressWarnings("rawtypes")
083        public Transport serverConfigure(Transport transport, WireFormat format, HashMap options) throws Exception {
084            return compositeConfigure(transport, format, options);
085        }
086    
087        @SuppressWarnings("rawtypes")
088        public Transport compositeConfigure(Transport transport, WireFormat format, Map options) {
089            transport = super.compositeConfigure(transport, format, options);
090            HttpClientTransport httpTransport = (HttpClientTransport)transport.narrow(HttpClientTransport.class);
091            if(httpTransport != null && httpTransport.isTrace() ) {
092                try {
093                    transport = TransportLoggerFactory.getInstance().createTransportLogger(transport);
094                } catch (Throwable e) {
095                    LOG.error("Could not create TransportLogger object for: " + TransportLoggerFactory.defaultLogWriterName + ", reason: " + e, e);
096                }
097            }
098            boolean useInactivityMonitor = "true".equals(getOption(options, "useInactivityMonitor", "true"));
099            if (useInactivityMonitor) {
100                transport = new InactivityMonitor(transport, null /* ignore wire format as no negotiation over http */);
101                IntrospectionSupport.setProperties(transport, options);
102            }
103    
104            return transport;
105        }
106    }