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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.ember;
19  
20  import org.codehaus.activemq.message.WireFormat;
21  import org.codehaus.activemq.transport.TransportServerChannel;
22  import org.codehaus.activemq.transport.TransportServerChannelFactory;
23  import pyrasun.eio.EIOGlobalContext;
24  import pyrasun.eio.EIOPoolingStrategy;
25  import pyrasun.eio.services.EmberServiceController;
26  import pyrasun.eio.services.bytearray.ByteArrayServerService;
27  
28  import javax.jms.JMSException;
29  import java.io.IOException;
30  import java.net.URI;
31  
32  /***
33   * An EmberIO (using NIO) implementation of a TransportServerChannelFactory
34   * 
35   * @version $Revision: 1.7 $
36   */
37  public class EmberTransportServerChannelFactory extends EmberSupport implements TransportServerChannelFactory {
38  
39      private EIOPoolingStrategy acceptPoolingStrategy;
40      private String acceptPoolingStrategyName = "BLOCKING_ACCEPTOR";
41  
42      public EmberTransportServerChannelFactory() {
43      }
44  
45      public EmberTransportServerChannelFactory(EIOGlobalContext context, EIOPoolingStrategy ioPoolingStrategy, EIOPoolingStrategy acceptPoolingStrategy) {
46          super(context, ioPoolingStrategy);
47          this.acceptPoolingStrategy = acceptPoolingStrategy;
48      }
49  
50      /***
51       * Bind a ServerChannel to an address
52       *
53       * @param wireFormat
54       * @param bindAddress
55       * @return the TransportChannel bound to the remote node
56       * @throws JMSException
57       */
58      public TransportServerChannel create(WireFormat wireFormat, URI bindAddress) throws JMSException {
59          try {
60              EmberServiceController controller = getController();
61              ByteArrayServerService service = new ByteArrayServerService(getContext(), getAcceptPoolingStrategy(), getIoPoolingStrategy(), bindAddress.getHost(), bindAddress.getPort());
62              controller.addService(service);
63  
64              EmberTransportServerChannel answer = new EmberTransportServerChannel(wireFormat, bindAddress, getContext(), controller);
65              service.setListener(answer);
66              return answer;
67          }
68          catch (IOException e) {
69              throw createJMSException("Initialization of TransportServerChannel failed: ", e);
70          }
71      }
72  
73      protected EIOPoolingStrategy getAcceptPoolingStrategy() {
74          if (acceptPoolingStrategy == null) {
75              acceptPoolingStrategy = getPoolingStrategyByName(acceptPoolingStrategyName);
76          }
77          return acceptPoolingStrategy;
78      }
79  }