content: /**
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.activemq.transport.peer;
  
  import java.io.IOException;
  import java.net.URI;
  import java.net.URISyntaxException;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.ConcurrentMap;
  
  import org.apache.activemq.broker.BrokerFactoryHandler;
  import org.apache.activemq.broker.BrokerService;
  import org.apache.activemq.broker.TransportConnector;
  import org.apache.activemq.transport.Transport;
  import org.apache.activemq.transport.TransportFactory;
  import org.apache.activemq.transport.TransportServer;
  import org.apache.activemq.transport.vm.VMTransportFactory;
  import org.apache.activemq.util.IOExceptionSupport;
  import org.apache.activemq.util.IdGenerator;
  import org.apache.activemq.util.IntrospectionSupport;
  import org.apache.activemq.util.URISupport;
  
  public class PeerTransportFactory extends TransportFactory {
  
      public static final ConcurrentMap BROKERS = new ConcurrentHashMap();
      public static final ConcurrentMap CONNECTORS = new ConcurrentHashMap();
      public static final ConcurrentMap SERVERS = new ConcurrentHashMap();
      private static final IdGenerator ID_GENERATOR = new IdGenerator("peer-");
  
      @Override
      public Transport doConnect(URI location) throws Exception {
          VMTransportFactory vmTransportFactory = createTransportFactory(location);
          return vmTransportFactory.doConnect(location);
      }
  
      @Override
      public Transport doCompositeConnect(URI location) throws Exception {
          VMTransportFactory vmTransportFactory = createTransportFactory(location);
          return vmTransportFactory.doCompositeConnect(location);
      }
  
      /**
       * @param location
       * @return the converted URI
       * @throws URISyntaxException
       */
      private VMTransportFactory createTransportFactory(URI location) throws IOException {
          try {
              String group = location.getHost();
              String broker = URISupport.stripPrefix(location.getPath(), "/");
  
              if (group == null) {
                  group = "default";
              }
              if (broker == null || broker.length() == 0) {
                  broker = ID_GENERATOR.generateSanitizedId();
              }
  
              final Map<String, String> brokerOptions = new HashMap<String, String>(URISupport.parseParameters(location));
              if (!brokerOptions.containsKey("persistent")) {
                  brokerOptions.put("persistent", "false");
              }
  
              final URI finalLocation = new URI("vm://" + broker);
              final String finalBroker = broker;
              final String finalGroup = group;
              VMTransportFactory rc = new VMTransportFactory() {
                  @Override
                  public Transport doConnect(URI ignore) throws Exception {
                      return super.doConnect(finalLocation);
                  };
  
                  @Override
                  public Transport doCompositeConnect(URI ignore) throws Exception {
                      return super.doCompositeConnect(finalLocation);
                  };
              };
              rc.setBrokerFactoryHandler(new BrokerFactoryHandler() {
                  @Override
                  public BrokerService createBroker(URI brokerURI) throws Exception {
                      BrokerService service = new BrokerService();
                      IntrospectionSupport.setProperties(service, brokerOptions);
                      service.setBrokerName(finalBroker);
                      TransportConnector c = service.addConnector("tcp://0.0.0.0:0");
                      c.setDiscoveryUri(new URI("multicast://default?group=" + finalGroup));
                      service.addNetworkConnector("multicast://default?group=" + finalGroup);
                      return service;
                  }
              });
              return rc;
  
          } catch (URISyntaxException e) {
              throw IOExceptionSupport.create(e);
          }
      }
  
      @Override
      public TransportServer doBind(URI location) throws IOException {
          throw new IOException("This protocol does not support being bound.");
      }
  
  }
  