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.transport.auto;
018
019import java.io.IOException;
020import java.net.Socket;
021import java.net.URI;
022import java.net.URISyntaxException;
023import java.util.HashMap;
024import java.util.Map;
025import java.util.Set;
026
027import javax.net.ServerSocketFactory;
028
029import org.apache.activemq.broker.BrokerService;
030import org.apache.activemq.broker.BrokerServiceAware;
031import org.apache.activemq.openwire.OpenWireFormatFactory;
032import org.apache.activemq.transport.TransportServer;
033import org.apache.activemq.transport.tcp.TcpTransport;
034import org.apache.activemq.transport.tcp.TcpTransportFactory;
035import org.apache.activemq.transport.tcp.TcpTransportServer;
036import org.apache.activemq.util.IOExceptionSupport;
037import org.apache.activemq.util.IntrospectionSupport;
038import org.apache.activemq.util.URISupport;
039import org.apache.activemq.wireformat.WireFormat;
040
041/**
042 *
043 *
044 */
045public class AutoTcpTransportFactory extends TcpTransportFactory implements BrokerServiceAware {
046
047    protected BrokerService brokerService;
048    /* (non-Javadoc)
049     * @see org.apache.activemq.broker.BrokerServiceAware#setBrokerService(org.apache.activemq.broker.BrokerService)
050     */
051    @Override
052    public void setBrokerService(BrokerService brokerService) {
053        this.brokerService = brokerService;
054    }
055
056
057    @Override
058    public TransportServer doBind(final URI location) throws IOException {
059        try {
060            Map<String, String> options = new HashMap<String, String>(URISupport.parseParameters(location));
061
062            Map<String, Object> autoProperties = IntrospectionSupport.extractProperties(options, "auto.");
063            this.enabledProtocols = AutoTransportUtils.parseProtocols((String) autoProperties.get("protocols"));
064
065            ServerSocketFactory serverSocketFactory = createServerSocketFactory();
066            AutoTcpTransportServer server = createTcpTransportServer(location, serverSocketFactory);
067            //server.setWireFormatFactory(createWireFormatFactory(options));
068            server.setWireFormatFactory(new OpenWireFormatFactory());
069            if (options.get("allowLinkStealing") != null){
070                allowLinkStealingSet = true;
071            }
072            IntrospectionSupport.setProperties(server, options);
073            server.setTransportOption(IntrospectionSupport.extractProperties(options, "transport."));
074            server.setWireFormatOptions(AutoTransportUtils.extractWireFormatOptions(options));
075            server.bind();
076
077            return server;
078        } catch (URISyntaxException e) {
079            throw IOExceptionSupport.create(e);
080        }
081    }
082
083    boolean allowLinkStealingSet = false;
084    private Set<String> enabledProtocols;
085
086    @Override
087    protected AutoTcpTransportServer createTcpTransportServer(final URI location, ServerSocketFactory serverSocketFactory) throws IOException, URISyntaxException {
088        AutoTcpTransportServer server = new AutoTcpTransportServer(this, location, serverSocketFactory, brokerService, enabledProtocols) {
089
090            @Override
091            protected TcpTransport createTransport(Socket socket, WireFormat format)
092                    throws IOException {
093                setDefaultLinkStealing(format, this);
094                return super.createTransport(socket, format);
095            }
096
097            @Override
098            protected TcpTransport createTransport(Socket socket, WireFormat format,
099                    TcpTransportFactory detectedTransportFactory) throws IOException {
100                setDefaultLinkStealing(format, this);
101                return super.createTransport(socket, format, detectedTransportFactory);
102            }
103
104        };
105
106        return server;
107    }
108
109    private void setDefaultLinkStealing(WireFormat format, TcpTransportServer server) {
110        if (format.getClass().toString().contains("MQTT") && !allowLinkStealingSet) {
111            server.setAllowLinkStealing(true);
112        }
113    }
114}