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    1   /***
    2    *
    3    * Copyright 2004 Hiram Chirino
    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.store.jdbc;
    19
    20  import java.sql.Connection;
    21  import java.sql.SQLException;
    22  import java.util.ArrayList;
    23  import java.util.List;
    24
    25  import javax.jms.JMSException;
    26  import javax.transaction.xa.XAException;
    27
    28  import org.apache.commons.logging.Log;
    29  import org.apache.commons.logging.LogFactory;
    30  import org.codehaus.activemq.message.ActiveMQXid;
    31  import org.codehaus.activemq.message.WireFormat;
    32  import org.codehaus.activemq.service.Transaction;
    33  import org.codehaus.activemq.service.TransactionManager;
    34  import org.codehaus.activemq.store.PreparedTransactionStore;
    35
    36  /***
    37   * @version $Revision: 1.1 $
    38   */
    39  public class JDBCPreparedTransactionStore implements PreparedTransactionStore {
    40      private static final Log log = LogFactory.getLog(JDBCMessageStore.class);
    41
    42      private final WireFormat wireFormat;
    43      private final JDBCAdapter adapter;
    44
    45      public JDBCPreparedTransactionStore(JDBCAdapter adapter, WireFormat wireFormat) {
    46          this.adapter = adapter;
    47          this.wireFormat = wireFormat;
    48      }
    49
    50      public ActiveMQXid[] getXids() throws XAException {
    51
    52          // Pull xids out of the DB and put them in here.
    53          List list = new ArrayList();
    54
    55          Connection c = TransactionContext.getConnection();
    56          try {
    57              adapter.doGetXids(c, list);
    58          } catch (SQLException e) {
    59              log.error("Failed to recover prepared transaction log: " + e, e);
    60              throw new XAException("Failed to recover container. Reason: " + e);
    61          }
    62
    63          ActiveMQXid[] answer = new ActiveMQXid[list.size()];
    64          list.toArray(answer);
    65          return answer;
    66      }
    67
    68      public void remove(ActiveMQXid xid) throws XAException {
    69
    70          // Get a connection and remove the message from the DB
    71          try {
    72              Connection c = TransactionContext.getConnection();
    73              adapter.doRemoveXid(c, xid);
    74          } catch (SQLException e) {
    75              throw new XAException("Failed to remove prepared transaction: " + xid + ". Reason: " + e);
    76          }
    77
    78      }
    79
    80      public void put(ActiveMQXid xid, Transaction transaction) throws XAException {
    81
    82          // Serialize the Message..
    83          String id = xid.toLocalTransactionId();
    84          byte data[];
    85          try {
    86              data = xid.toBytes();
    87          } catch (Exception e) {
    88              throw new XAException("Failed to store prepared transaction: " + xid + ". Reason: " + e);
    89          }
    90
    91          // Get a connection and insert the message into the DB.
    92          try {
    93              Connection c = TransactionContext.getConnection();
    94              adapter.doAddXid(c, xid, data);
    95          } catch (SQLException e) {
    96              throw new XAException("Failed to store prepared transaction: " + xid + ". Reason: " + e);
    97          }
    98      }
    99
    100     public void loadPreparedTransactions(TransactionManager transactionManager) throws XAException {
    101
    102         try {
    103             Connection c = TransactionContext.getConnection();
    104             adapter.doLoadPreparedTransactions(c, transactionManager);
    105         } catch (SQLException e) {
    106             log.error("Failed to recover prepared transaction log: " + e, e);
    107             throw new XAException("Failed to recover prepared transaction log. Reason: " + e);
    108         }
    109
    110     }
    111
    112     public void start() throws JMSException {
    113     }
    114
    115     public synchronized void stop() throws JMSException {
    116     }
    117
    118 }