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1   /****************************************************************
2    * Licensed to the Apache Software Foundation (ASF) under one   *
3    * or more contributor license agreements.  See the NOTICE file *
4    * distributed with this work for additional information        *
5    * regarding copyright ownership.  The ASF licenses this file   *
6    * to you under the Apache License, Version 2.0 (the            *
7    * "License"); you may not use this file except in compliance   *
8    * with the License.  You may obtain a copy of the License at   *
9    *                                                              *
10   *   http://www.apache.org/licenses/LICENSE-2.0                 *
11   *                                                              *
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13   * software distributed under the License is distributed on an  *
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
15   * KIND, either express or implied.  See the License for the    *
16   * specific language governing permissions and limitations      *
17   * under the License.                                           *
18   ****************************************************************/
19  
20  package org.apache.james.mpt;
21  
22  import java.net.InetSocketAddress;
23  import java.nio.channels.SocketChannel;
24  
25  import org.apache.james.mpt.HostSystem.Continuation;
26  
27  /**
28   * Session factory creates session which connection to a server port.
29   */
30  public class ExternalSessionFactory implements SessionFactory {
31  
32      public static final String IMAP_SHABANG = "* OK IMAP4rev1 Server ready";
33      protected final InetSocketAddress address;
34      protected final Monitor monitor;
35      protected final String shabang;
36  
37      public ExternalSessionFactory(final String host, final int port, final Monitor monitor, final String shabang) {
38          super();
39          this.address = new InetSocketAddress(host, port);
40          this.monitor = monitor;
41          this.shabang = shabang;
42      }
43  
44      public Session newSession(Continuation continuation) throws Exception {
45          monitor.note("Connecting to " + address.getHostName() + ":" + address.getPort());
46          final SocketChannel channel = SocketChannel.open(address);
47          channel.configureBlocking(false);
48          final ExternalSession result = new ExternalSession(channel, monitor, shabang);
49          return result;
50      }
51  
52      public void reset() throws Exception {
53          monitor.note("Please reset system.");
54      }
55  
56      /**
57       * Constructs a <code>String</code> with all attributes
58       * in name = value format.
59       *
60       * @return a <code>String</code> representation 
61       * of this object.
62       */
63      public String toString()
64      {
65          final String TAB = " ";
66  
67          String retValue = "ExternalSessionFactory ( "
68              + "address = " + this.address + TAB
69              + "monitor = " + this.monitor + TAB
70              + "shabang = " + this.shabang + TAB
71              + " )";
72  
73          return retValue;
74      }
75  }