Package org.apache.sandesha2.msgreceivers

Source Code of org.apache.sandesha2.msgreceivers.RMMessageReceiver

/*
* Copyright  1999-2004 The Apache Software Foundation.
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*
*/

package org.apache.sandesha2.msgreceivers;


import org.apache.axis2.AxisFault;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.description.Parameter;
import org.apache.axis2.receivers.AbstractMessageReceiver;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.sandesha2.RMMsgContext;
import org.apache.sandesha2.Sandesha2Constants;
import org.apache.sandesha2.client.SandeshaClientConstants;
import org.apache.sandesha2.i18n.SandeshaMessageHelper;
import org.apache.sandesha2.i18n.SandeshaMessageKeys;
import org.apache.sandesha2.msgprocessors.MsgProcessor;
import org.apache.sandesha2.msgprocessors.MsgProcessorFactory;
import org.apache.sandesha2.storage.StorageManager;
import org.apache.sandesha2.storage.Transaction;
import org.apache.sandesha2.util.FaultManager;
import org.apache.sandesha2.util.MsgInitializer;
import org.apache.sandesha2.util.SandeshaUtil;

/**
*Currently this is a dummy Msg Receiver.
*All the necessary RM logic happens at MessageProcessors.
*This only ensures that the defaults Messsage Receiver does not get called for RM control messages.
*/


public class RMMessageReceiver extends AbstractMessageReceiver {

  private static final Log log = LogFactory.getLog(RMMessageReceiver.class);
 
  public final void invokeBusinessLogic(MessageContext msgCtx) throws AxisFault {
    if(log.isDebugEnabled()) log.debug("Entry: RMMessageReceiver::invokeBusinessLogic");
   
    RMMsgContext rmMsgCtx = null;
   
    if (msgCtx.getProperty(Sandesha2Constants.MessageContextProperties.RM_MESSAGE_CONTEXT) != null)
      rmMsgCtx = (RMMsgContext)msgCtx.getProperty(Sandesha2Constants.MessageContextProperties.RM_MESSAGE_CONTEXT);
    else
      rmMsgCtx = MsgInitializer.initializeMessage(msgCtx);
   
    if(log.isDebugEnabled()) log.debug("MsgReceiver got type: " + SandeshaUtil.getMessageTypeString(rmMsgCtx.getMessageType()))

    // Note that some messages (such as stand-alone acks) will be routed here, but
    // the headers will already have been processed. Therefore we should not assume
    // that we will have a MsgProcessor every time.
    MsgProcessor msgProcessor = MsgProcessorFactory.getMessageProcessor(rmMsgCtx);
    if(msgProcessor != null) {
      Transaction transaction = null;
     
      if (msgCtx.getAxisService() != null) {
        Parameter unreliableParam = msgCtx.getAxisService().getParameter(SandeshaClientConstants.UNRELIABLE_MESSAGE);
        if (null != unreliableParam && "true".equals(unreliableParam.getValue())) {
         
          if (rmMsgCtx.getMessageType() == Sandesha2Constants.MessageTypes.CREATE_SEQ)
            FaultManager.makeCreateSequenceRefusedFault(rmMsgCtx,
                SandeshaMessageHelper.getMessage(SandeshaMessageKeys.reliableMessagingNotEnabled, msgCtx.getAxisService().getName()),
                new Exception());
          else
            throw new AxisFault(SandeshaMessageHelper.getMessage(SandeshaMessageKeys.reliableMessagingNotEnabled, msgCtx.getAxisService().getName()));
         
          log.debug("Exit: RMMessageReceiver::invokeBusinessLogic, Service has disabled RM ");
          return;
        }
      }

      try {
        ConfigurationContext context = msgCtx.getConfigurationContext();
        StorageManager storageManager = SandeshaUtil.getSandeshaStorageManager(context, context.getAxisConfiguration());       
        transaction = storageManager.getTransaction();

        msgProcessor.processInMessage(rmMsgCtx, transaction);

        if(transaction != null && transaction.isActive()) transaction.commit();
          transaction = null;

      } catch (Exception e) {
        if (log.isDebugEnabled())
          log.debug("Exception caught during processInMessage", e);
        // message should not be sent in a exception situation.
        msgCtx.pause();
 
        if (!(e instanceof AxisFault)) {
          String message = SandeshaMessageHelper.getMessage(SandeshaMessageKeys.inMsgError, e.toString());
          throw new AxisFault(message, e);
        }
       
        throw (AxisFault)e;
      } finally {
        if (transaction != null && transaction.isActive()) {
          try {
            transaction.rollback();
          } catch (Exception e1) {
            String message = SandeshaMessageHelper.getMessage(SandeshaMessageKeys.rollbackError, e1.toString());
            log.debug(message, e1);
          }
        }
      }
    } 

    if(log.isDebugEnabled()) log.debug("Exit: RMMessageReceiver::invokeBusinessLogic");
  }
}
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