Package com.sun.messaging.jmq.jmsserver.management.mbeans

Source Code of com.sun.messaging.jmq.jmsserver.management.mbeans.MessageManagerConfig

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/*
* @(#)MessageManagerConfig.java  1.3 06/28/07
*/

package com.sun.messaging.jmq.jmsserver.management.mbeans;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.util.Iterator;
import java.util.HashMap;

import javax.management.ObjectName;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanParameterInfo;
import javax.management.MBeanNotificationInfo;
import javax.management.MBeanException;

import com.sun.messaging.jmq.io.SysMessageID;
import com.sun.messaging.jmq.io.PacketType;
import com.sun.messaging.jms.management.server.*;
import com.sun.messaging.jmq.jmsserver.core.Consumer;
import com.sun.messaging.jmq.jmsserver.core.Subscription;
import com.sun.messaging.jmq.jmsserver.core.ConsumerUID;
import com.sun.messaging.jmq.jmsserver.core.Destination;
import com.sun.messaging.jmq.jmsserver.core.PacketReference;
import com.sun.messaging.jmq.jmsserver.management.util.ConsumerUtil;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.util.lists.RemoveReason;
import com.sun.messaging.jmq.util.log.Logger;

public class MessageManagerConfig extends MQMBeanReadWrite  {
    private static MBeanParameterInfo[] deleteMessageSignature = {
              new MBeanParameterInfo("destinationType", String.class.getName(),
                            mbr.getString(mbr.I_DST_MGR_OP_PARAM_DEST_TYPE)),
              new MBeanParameterInfo("destinationName", String.class.getName(),
                            mbr.getString(mbr.I_DST_MGR_OP_PARAM_DEST_NAME)),
        new MBeanParameterInfo("messageID", String.class.getName(),
                      "Message ID")
          };

    private static MBeanParameterInfo[] replaceMessageSignature = {
              new MBeanParameterInfo("destinationType", String.class.getName(),
                                mbr.getString(mbr.I_DST_MGR_OP_PARAM_DEST_TYPE)),
              new MBeanParameterInfo("destinationName", String.class.getName(),
                            mbr.getString(mbr.I_DST_MGR_OP_PARAM_DEST_NAME)),
        new MBeanParameterInfo("messageID", String.class.getName(),
                      "Message ID"),
        new MBeanParameterInfo("messageBody", HashMap.class.getName(),
                      "Message Body")
          };

    private static MBeanOperationInfo[] ops = {
      new MBeanOperationInfo("deleteMessage",
    "Delete a message in a destination",
        deleteMessageSignature,
        Void.TYPE.getName(),
        MBeanOperationInfo.ACTION),

      new MBeanOperationInfo("replaceMessage",
    "Replace a message in a destination",
        replaceMessageSignature,
        String.class.getName(),
        MBeanOperationInfo.ACTION)
    };


    public MessageManagerConfig()  {
  super();
    }

    public void deleteMessage(String destinationType, String destinationName,
        String messageID) throws MBeanException {
  try  {
      if ((destinationName == null) || (destinationType == null))  {
    throw new BrokerException("Destination name and type not specified");
      }

      Destination d = Destination.getDestination(destinationName,
      (destinationType.equals(DestinationType.QUEUE)));

      if (d == null)  {
    throw new BrokerException(rb.getString(rb.X_DESTINATION_NOT_FOUND,
                 destinationName));
      }

      if (messageID == null)  {
    throw new BrokerException("Message ID not specified");
      }

      SysMessageID sysMsgID = SysMessageID.get(messageID);
      PacketReference pr = Destination.get(sysMsgID);

      if (pr != null)  {
                d.removeMessage(sysMsgID, RemoveReason.REMOVED_OTHER);
          logger.log(Logger.INFO, "Deleted from destination "
      + destinationName
      + " message with ID: "
      + messageID);
            } else  {
    throw new BrokerException("Could not locate message "
                + messageID
                + " in destination "
                + destinationName);
            }
  } catch (Exception e)  {
            handleOperationException("deleteMessage", e);
  }
    }

    public String replaceMessage(String destinationType, String destinationName,
        String messageID,
        HashMap messageBody) throws MBeanException {
  String newMsgID = null;

  try  {
      if ((destinationName == null) || (destinationType == null))  {
    throw new BrokerException("Destination name and type not specified");
      }

      Destination d = Destination.getDestination(destinationName,
      (destinationType.equals(DestinationType.QUEUE)));

      if (d == null)  {
    throw new BrokerException(rb.getString(rb.X_DESTINATION_NOT_FOUND,
                 destinationName));
      }

      if (messageID == null)  {
    throw new BrokerException("Message ID not specified");
      }

      if (messageBody == null)  {
    throw new BrokerException("New message body not specified");
      }

      d.load();

      SysMessageID sysMsgID = SysMessageID.get(messageID);
      PacketReference pr = Destination.get(sysMsgID);

      if (pr != null)  {
    /*
     * Need to check if message types match
     */
                int oldPacketType = pr.getPacket().getPacketType();
    Integer newPacketType = (Integer)messageBody.get("MessageBodyType");

    if (oldPacketType != newPacketType.intValue())  {
        throw new BrokerException(
      "Existing message and new message types do not match.");
    }

    byte[] bytes = getBytesFromMessage(messageBody);

    newMsgID = d.replaceMessageString(sysMsgID, null,
          bytes);

    if (newMsgID == null)  {
        throw new BrokerException(
      "New message ID not returned as expected.");
    }

          logger.log(Logger.INFO, "Replaced from destination "
      + destinationName
      + " old message with ID: "
      + sysMsgID
      + " with new message with ID: "
      + newMsgID);
            } else  {
    throw new BrokerException("Could not locate message "
                + messageID
                + " in destination "
                + destinationName);
            }

  } catch (Exception e)  {
            handleOperationException("replaceMessage", e);
  }

  return (newMsgID);
    }

    public String getMBeanName()  {
  return ("MessageManagerConfig");
    }

    public String getMBeanDescription()  {
  return ("Configuration MBean for Message Manager");
  /*
  return (mbr.getString(mbr.I_MSG_MGR_CFG_DESC));
  */
    }

    public MBeanAttributeInfo[] getMBeanAttributeInfo()  {
  return (null);
    }

    public MBeanOperationInfo[] getMBeanOperationInfo()  {
  return (ops);
    }

    public MBeanNotificationInfo[] getMBeanNotificationInfo()  {
  return (null);
    }

    private byte[] getBytesFromMessage(HashMap h)  {
        String errMsg = null;
        byte ba[] = null;

  Object msgBody = h.get("MessageBody");
  Integer msgType = (Integer)h.get("MessageBodyType");

        switch (msgType.intValue())  {
        case PacketType.TEXT_MESSAGE:
      try  {
                String textMsg = (String)msgBody;
          ba = textMsg.getBytes("UTF8");
      } catch(Exception e)  {
                errMsg = "Caught exception while creating text message body";
                logger.log(Logger.ERROR, errMsg, e);
      }
        break;

        case PacketType.BYTES_MESSAGE:
      ba = (byte[])msgBody;
        break;

        case PacketType.MAP_MESSAGE:
            try  {
                ByteArrayOutputStream byteArrayOutputStream =
                              new ByteArrayOutputStream();
                ObjectOutputStream objectOutputStream =
                              new ObjectOutputStream(byteArrayOutputStream);

          HashMap map = (HashMap)msgBody;
          objectOutputStream.writeObject(map);
          objectOutputStream.flush();

          ba = byteArrayOutputStream.toByteArray();
            } catch(Exception e)  {
                errMsg = "Caught exception while creating map message body";
                logger.log(Logger.ERROR, errMsg, e);
            }
        break;

        case PacketType.STREAM_MESSAGE:
      ba = (byte[])msgBody;
        break;

        case PacketType.OBJECT_MESSAGE:
            try  {
                ByteArrayOutputStream byteArrayOutputStream =
                              new ByteArrayOutputStream();
                ObjectOutputStream objectOutputStream =
                              new ObjectOutputStream(byteArrayOutputStream);

          objectOutputStream.writeObject(msgBody);
          objectOutputStream.flush();

          ba = byteArrayOutputStream.toByteArray();
      } catch(Exception e)  {
                errMsg = "Caught exception while creating object message body";
                logger.log(Logger.ERROR, errMsg, e);
            }
        break;

  default:
            errMsg = "Unsupported message type for REPLACE_MESSAGE handler: "
        + msgType.intValue();
            logger.log(Logger.ERROR, errMsg);
  break;
        }

        return (ba);
    }

}
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