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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  
19  
20  package org.codehaus.activemq.message;
21  
22  import java.io.DataInput;
23  import java.io.IOException;
24  
25  /***
26   * Reads a TransactionInfo object from a Stream
27   */
28  
29  public class XATransactionInfoReader extends AbstractPacketReader {
30  
31      /***
32       * Return the type of Packet
33       *
34       * @return integer representation of the type of Packet
35       */
36  
37      public int getPacketType() {
38          return Packet.XA_TRANSACTION_INFO;
39      }
40  
41      /***
42       * @return a new Packet instance
43       */
44  
45      public Packet createPacket() {
46          return new XATransactionInfo();
47      }
48  
49  
50      /***
51       * build a Packet instance from the data input stream
52       *
53       * @param packet A Packet object
54       * @param dataIn the data input stream to build the packet from
55       * @throws java.io.IOException
56       */
57  
58      public void buildPacket(Packet packet, DataInput dataIn) throws IOException {
59          super.buildPacket(packet, dataIn);
60          XATransactionInfo info = (XATransactionInfo) packet;
61          info.setType(dataIn.readByte());
62          switch (info.getType()) {
63              case TransactionType.START:
64              case TransactionType.PRE_COMMIT:
65              case TransactionType.COMMIT:
66              case TransactionType.RECOVER:
67              case TransactionType.ROLLBACK:
68              case TransactionType.END:
69              case TransactionType.FORGET:
70              case TransactionType.JOIN:
71              case TransactionType.COMMIT_ONE_PHASE:
72                  info.setXid(ActiveMQXid.read(dataIn));
73                  break;
74              case TransactionType.SET_TX_TIMEOUT:
75                  info.setTransactionTimeout(dataIn.readInt());
76                  break;
77              case TransactionType.XA_RECOVER:
78                  //recover should take a flag.
79                  break;
80              case TransactionType.GET_TX_TIMEOUT:
81              case TransactionType.GET_RM_ID:
82                  break;
83              default:
84                  throw new IllegalArgumentException("Invalid type code: " + info.getType());
85          }
86      }
87  
88  }