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.discovery;
018
019import java.io.IOException;
020import java.net.URI;
021import java.util.HashMap;
022import java.util.Map;
023
024import org.apache.activemq.transport.CompositeTransport;
025import org.apache.activemq.transport.Transport;
026import org.apache.activemq.transport.TransportServer;
027import org.apache.activemq.transport.failover.FailoverTransport;
028import org.apache.activemq.transport.failover.FailoverTransportFactory;
029import org.apache.activemq.util.IntrospectionSupport;
030import org.apache.activemq.util.URISupport.CompositeData;
031
032/**
033 * 
034 */
035public class DiscoveryTransportFactory extends FailoverTransportFactory {
036        
037    public Transport createTransport(CompositeData compositeData) throws IOException {
038        Map<String, String> parameters = new HashMap<String, String>(compositeData.getParameters());
039        FailoverTransport failoverTransport = createTransport(parameters);
040        return createTransport(failoverTransport, compositeData, parameters);
041    }
042    
043    /**
044     * Creates a transport that reports discovered brokers to a specific composite transport.
045     * 
046     * @param compositeTransport transport to report discovered brokers to
047     * @param compositeData used to apply parameters to this transport 
048     * @return a transport that reports discovered brokers to a specific composite transport.
049     * @throws IOException
050     */
051    public static DiscoveryTransport createTransport(CompositeTransport compositeTransport, CompositeData compositeData, Map<String, String> parameters) throws IOException {
052        DiscoveryTransport transport = new DiscoveryTransport(compositeTransport);
053
054        IntrospectionSupport.setProperties(transport, parameters);
055        transport.setParameters(parameters);
056        
057        URI discoveryAgentURI = compositeData.getComponents()[0];
058        DiscoveryAgent discoveryAgent = DiscoveryAgentFactory.createDiscoveryAgent(discoveryAgentURI);
059        transport.setDiscoveryAgent(discoveryAgent);
060        return transport;
061    }
062
063    public TransportServer doBind(URI location) throws IOException {
064        throw new IOException("Invalid server URI: " + location);
065// try{
066//            CompositeData compositData=URISupport.parseComposite(location);
067//            URI[] components=compositData.getComponents();
068//            if(components.length!=1){
069//                throw new IOException("Invalid location: "+location
070//                                +", the location must have 1 and only 1 composite URI in it - components = "
071//                                +components.length);
072//            }
073//            Map parameters=new HashMap(compositData.getParameters());
074//            DiscoveryTransportServer server=new DiscoveryTransportServer(TransportFactory.bind(value,components[0]));
075//            IntrospectionSupport.setProperties(server,parameters,"discovery");
076//            DiscoveryAgent discoveryAgent=DiscoveryAgentFactory.createDiscoveryAgent(server.getDiscovery());
077//            // Use the host name to configure the group of the discovery agent.
078//            if(!parameters.containsKey("discovery.group")){
079//                if(compositData.getHost()!=null){
080//                    parameters.put("discovery.group",compositData.getHost());
081//                }
082//            }
083//            if(!parameters.containsKey("discovery.brokerName")){
084//                parameters.put("discovery.brokerName",value);
085//            }
086//            IntrospectionSupport.setProperties(discoveryAgent,parameters,"discovery.");
087//            server.setDiscoveryAgent(discoveryAgent);
088//            return server;
089//        }catch(URISyntaxException e){
090//            throw new IOException("Invalid location: "+location);
091//        }
092    }
093
094}