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    1   /***
    2    *
    3    * Copyright 2004 Protique Ltd
    4    *
    5    * Licensed under the Apache License, Version 2.0 (the "License");
    6    * you may not use this file except in compliance with the License.
    7    * You may obtain a copy of the License at
    8    *
    9    * http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   *
    17   **/
    18  package org.codehaus.activemq.transport.jgroups;
    19
    20  import org.codehaus.activemq.message.WireFormat;
    21  import org.codehaus.activemq.transport.TransportChannel;
    22  import org.codehaus.activemq.transport.TransportChannelFactory;
    23  import org.codehaus.activemq.util.JMSExceptionHelper;
    24  import org.jgroups.Channel;
    25  import org.jgroups.ChannelException;
    26  import org.jgroups.ChannelFactory;
    27  import org.jgroups.JChannelFactory;
    28
    29  import javax.jms.JMSException;
    30  import java.net.URI;
    31
    32  /***
    33   * A JGroups implementation of a TransportChannelFactory
    34   *
    35   * @version $Revision: 1.3 $
    36   */
    37  public class JGroupsTransportChannelFactory implements TransportChannelFactory {
    38
    39      private ChannelFactory channelFactory = new JChannelFactory();
    40      private Object channelConfiguration;
    41      private String channelName = "ActiveMQ";
    42
    43      public JGroupsTransportChannelFactory() {
    44      }
    45
    46      public JGroupsTransportChannelFactory(ChannelFactory channelFactory, Object channelConfiguration, String channelName) {
    47          this.channelFactory = channelFactory;
    48          this.channelConfiguration = channelConfiguration;
    49          this.channelName = channelName;
    50      }
    51
    52      public TransportChannel create(WireFormat wireFormat, URI remoteLocation) throws JMSException {
    53          try {
    54              Channel channel = createChannel(remoteLocation);
    55              channel.setOpt(Channel.AUTO_RECONNECT, Boolean.TRUE);
    56              channel.connect(channelName);
    57              return new JGroupsTransportChannel(wireFormat, channel, null);
    58          }
    59          catch (ChannelException e) {
    60              throw JMSExceptionHelper.newJMSException("Failed to construct JGroups Channel: " + e, e);
    61          }
    62      }
    63
    64      public TransportChannel create(WireFormat wireFormat, URI remoteLocation, URI localLocation) throws JMSException {
    65          return create(wireFormat, remoteLocation);
    66      }
    67
    68      public boolean requiresEmbeddedBroker() {
    69          return true;
    70      }
    71
    72      // Properties
    73
    74      public ChannelFactory getChannelFactory() {
    75          return channelFactory;
    76      }
    77
    78      public void setChannelFactory(ChannelFactory channelFactory) {
    79          this.channelFactory = channelFactory;
    80      }
    81
    82      public Object getChannelConfiguration() {
    83          return channelConfiguration;
    84      }
    85
    86      public void setChannelConfiguration(Object channelConfiguration) {
    87          this.channelConfiguration = channelConfiguration;
    88      }
    89
    90      public String getChannelName() {
    91          return channelName;
    92      }
    93
    94      public void setChannelName(String channelName) {
    95          this.channelName = channelName;
    96      }
    97
    98      protected Channel createChannel(URI remoteLocation) throws ChannelException {
    99          Object config = channelConfiguration;
    100         if (config == null) {
    101             // lets use the URI
    102             String text = remoteLocation.getSchemeSpecificPart();
    103             if (!text.equalsIgnoreCase("default")) {
    104                 config = text;
    105             }
    106         }
    107         System.out.println("Configuring JGroups with: " + config);
    108         return channelFactory.createChannel(channelConfiguration);
    109     }
    110 }