BDbPersistenceAdapter xref

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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.store.bdbn;
    19
    20  import com.sleepycat.db.Db;
    21  import com.sleepycat.db.DbEnv;
    22  import com.sleepycat.db.DbException;
    23  import org.codehaus.activemq.service.impl.PersistenceAdapterSupport;
    24  import org.codehaus.activemq.store.MessageStore;
    25  import org.codehaus.activemq.store.PreparedTransactionStore;
    26  import org.codehaus.activemq.store.TopicMessageStore;
    27  import org.codehaus.activemq.util.JMSExceptionHelper;
    28
    29  import javax.jms.JMSException;
    30  import java.io.FileNotFoundException;
    31  import java.util.Map;
    32
    33  /***
    34   * @version $Revision: 1.2 $
    35   */
    36  public class BDbPersistenceAdapter extends PersistenceAdapterSupport {
    37      protected DbEnv environment;
    38
    39      public BDbPersistenceAdapter(DbEnv environment) {
    40          this.environment = environment;
    41      }
    42
    43      public Map getInitialDestinations() {
    44          return null;  /*** TODO */
    45      }
    46
    47      public MessageStore createQueueMessageStore(String destinationName) throws JMSException {
    48          return null; /*** TODO */
    49      }
    50
    51      public TopicMessageStore createTopicMessageStore(String destinationName) {
    52          return null; /*** TODO */
    53      }
    54
    55      public PreparedTransactionStore createPreparedTransactionStore() throws JMSException {
    56          return null;  /*** TODO */
    57      }
    58
    59      public void beginTransaction() throws JMSException {
    60          try {
    61              BDbHelper.createTransaction(environment);
    62          }
    63          catch (DbException e) {
    64              throw JMSExceptionHelper.newJMSException("Failed to commit transaction. Reason: " + e, e);
    65          }
    66      }
    67
    68      public void commitTransaction() throws JMSException {
    69          BDbHelper.commitTransaction(BDbHelper.getTransaction());
    70      }
    71
    72      public void rollbackTransaction() {
    73          BDbHelper.rollbackTransaction(BDbHelper.getTransaction());
    74      }
    75
    76      public void start() throws JMSException {
    77      }
    78
    79      public void stop() throws JMSException {
    80          try {
    81              environment.close(0);
    82          }
    83          catch (DbException e) {
    84              throw JMSExceptionHelper.newJMSException("Failed to close environment. Reason: " + e, e);
    85          }
    86      }
    87
    88      // Implementation methods
    89      //-------------------------------------------------------------------------
    90      protected Db createDatabase(String name) throws JMSException, FileNotFoundException, DbException {
    91          return BDbHelper.open(environment, name, false);
    92      }
    93
    94  }