com.communote.plugins.mq.message.base.handler

Class CommunoteMessageHandler<T extends BaseMessage>

java.lang.Object

com.communote.plugins.mq.message.base.handler.CommunoteMessageHandler<T>

Type Parameters:

T - type of messages, that are handled by this handler

Direct Known Subclasses:

CreateNoteMessageHandler, CreateTopicMessageHandler, DeleteTopicMessageHandler, EditTopicMessageHandler, SetTopicRolesMessageHandler, UpdateTopicRolesMessageHandler

public abstract class CommunoteMessageHandler<T extends BaseMessage>
extends Object

Communote Message Handler is intended for processing a specified subset of messages. The subset is specified through handledMessageType selector. The messages passing this selector should deliver content of the specified handledMessageClass

Author:

Communote GmbH - http://www.communote.com/

Constructor Summary

Constructors

Constructor and Description
CommunoteMessageHandler()

Method Summary

Modifier and Type	Method and Description
abstract Class<T>	getHandledMessageClass() Class of the messages to be handled by this handler.
String	getHandledMessageType() returns header selector, to be used for the message filtering.
abstract String	getVersion() Handler version is used to distinguish between different formats of the semantically same message type.
abstract CommunoteReplyMessage	handleMessage(T message) handles message of the appropriate type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CommunoteMessageHandler

public CommunoteMessageHandler()

Method Detail

getHandledMessageClass

public abstract Class<T> getHandledMessageClass()

Class of the messages to be handled by this handler.

Returns:

class of the handled message

getHandledMessageType

public String getHandledMessageType()

returns header selector, to be used for the message filtering.

Returns:

selector

getVersion

public abstract String getVersion()

Handler version is used to distinguish between different formats of the semantically same message type.

Returns:

the version

handleMessage

public abstract CommunoteReplyMessage handleMessage(T message)
                                             throws Exception

handles message of the appropriate type. If the processing was successful the reply message should be returned. Otherwise an appropriate exception should be thrown

Parameters:

message - the message

Returns:

Reply message if the processing was successful

Throws:

Exception - any occurred exception