ActiveMQConnectorGBean 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.gbean;
    19
    20  import org.apache.commons.logging.Log;
    21  import org.apache.commons.logging.LogFactory;
    22  import org.apache.geronimo.gbean.GAttributeInfo;
    23  import org.apache.geronimo.gbean.GBeanInfo;
    24  import org.apache.geronimo.gbean.GBeanInfoFactory;
    25  import org.apache.geronimo.gbean.GBeanLifecycle;
    26  import org.apache.geronimo.gbean.GConstructorInfo;
    27  import org.apache.geronimo.gbean.GReferenceInfo;
    28  import org.apache.geronimo.gbean.WaitingException;
    29  import org.codehaus.activemq.ActiveMQConnection;
    30  import org.codehaus.activemq.ActiveMQConnectionFactory;
    31  import org.codehaus.activemq.broker.BrokerConnector;
    32  import org.codehaus.activemq.broker.impl.BrokerConnectorImpl;
    33  import org.codehaus.activemq.message.DefaultWireFormat;
    34  import org.codehaus.activemq.message.WireFormat;
    35
    36  import javax.jms.JMSException;
    37
    38  /***
    39   * Default implementation of the ActiveMQ connector
    40   *
    41   * @version $Revision: 1.1 $
    42   */
    43  public class ActiveMQConnectorGBean implements GBeanLifecycle {
    44
    45      private Log log = LogFactory.getLog(getClass().getName());
    46
    47      private BrokerConnector brokerConnector;
    48      private ActiveMQContainer container;
    49      private WireFormat wireFormat = new DefaultWireFormat();
    50      private String url = ActiveMQConnection.DEFAULT_URL;
    51
    52      public ActiveMQConnectorGBean(ActiveMQContainer container) {
    53          this.container = container;
    54      }
    55
    56      public String getUrl() {
    57          return url;
    58      }
    59
    60      public void setUrl(String url) {
    61          this.url = url;
    62      }
    63
    64      public WireFormat getWireFormat() {
    65          return wireFormat;
    66      }
    67
    68      public void setWireFormat(WireFormat wireFormat) {
    69          //seems like a bug in attribute handling???
    70          if (wireFormat == null) {
    71              this.wireFormat = new DefaultWireFormat();
    72          }
    73          else {
    74              this.wireFormat = wireFormat;
    75          }
    76      }
    77
    78      public synchronized void doStart() throws WaitingException, Exception {
    79          if (brokerConnector == null) {
    80              brokerConnector = createBrokerConnector();
    81              brokerConnector.start();
    82              ActiveMQConnectionFactory.registerBroker(url, brokerConnector);
    83          }
    84      }
    85
    86      public synchronized void doStop() throws WaitingException, Exception {
    87          if (brokerConnector != null) {
    88              ActiveMQConnectionFactory.unregisterBroker(url);
    89              BrokerConnector temp = brokerConnector;
    90              brokerConnector = null;
    91              temp.stop();
    92          }
    93      }
    94
    95      public synchronized void doFail() {
    96          if (brokerConnector != null) {
    97              BrokerConnector temp = brokerConnector;
    98              brokerConnector = null;
    99              try {
    100                 temp.stop();
    101             }
    102             catch (JMSException e) {
    103                 log.info("Caught while closing due to failure: " + e, e);
    104             }
    105         }
    106     }
    107
    108     protected BrokerConnector createBrokerConnector() throws Exception {
    109         return new BrokerConnectorImpl(container.getBrokerContainer(), url, wireFormat);
    110     }
    111
    112     public static final GBeanInfo GBEAN_INFO;
    113
    114     static {
    115         GBeanInfoFactory infoFactory = new GBeanInfoFactory("ActiveMQ Message Broker Connector", ActiveMQConnectorGBean.class.getName());
    116         infoFactory.addAttribute(new GAttributeInfo("Url", String.class.getName(), true));
    117         infoFactory.addAttribute(new GAttributeInfo("WireFormat", WireFormat.class.getName(), true));
    118         infoFactory.addReference(new GReferenceInfo("ActiveMQContainer", ActiveMQContainer.class));
    119         infoFactory.setConstructor(new GConstructorInfo(new String[]{"ActiveMQContainer"}));
    120         GBEAN_INFO = infoFactory.getBeanInfo();
    121     }
    122
    123     public static GBeanInfo getGBeanInfo() {
    124         return GBEAN_INFO;
    125     }
    126 }