org.licas.server.esb

Class MonitorServer

java.lang.Object

org.licas.server.esb.MonitorServer

public class MonitorServer
extends java.lang.Object

This class can be used to perform some resource allocation over the message queue that is built from the http requests.

Author:

Kieran Greer

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.HashMap<java.lang.String,java.lang.Integer>	failCount Number of times a message is not processed.
protected MessageMediator	mediator Parent message mediator
protected MessageQueue	messageQueue The queue of messages to process
protected PasswordHandler	passwordHandler To retrieve some passwords for service types
protected java.util.ArrayList<java.lang.String>	servicesInvoked List of services currently invoked through a message

Constructor Summary

Constructors

Constructor and Description
MonitorServer(PasswordHandler thePasswordHandler, MessageMediator theMediator) Create a new instance of MonitorServer.

Method Summary

Modifier and Type	Method and Description
void	cancelMessage(java.lang.String ticket) Remove the message with the specified ticket number from the queue.
boolean	hasMessages() Return true if there are messages waiting to be processed.
boolean	messageToBus(MessageInfo ro) Add the message to the message bus, with the following rules:
void	processNextMessage() Process the queue of messages and return the next one determined by resource allocation.

Methods inherited from class java.lang.Object

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

Field Detail

messageQueue

protected final MessageQueue messageQueue

The queue of messages to process

servicesInvoked

protected java.util.ArrayList<java.lang.String> servicesInvoked

List of services currently invoked through a message

passwordHandler

protected PasswordHandler passwordHandler

To retrieve some passwords for service types

mediator

protected MessageMediator mediator

Parent message mediator

failCount

protected java.util.HashMap<java.lang.String,java.lang.Integer> failCount

Number of times a message is not processed. Key is the unique commID and value is a count of number of times.

Constructor Detail

MonitorServer

public MonitorServer(PasswordHandler thePasswordHandler,
                     MessageMediator theMediator)

Create a new instance of MonitorServer.

Parameters:

thePasswordHandler - the server password handler.

theMediator - the parent message mediator.

Method Detail

hasMessages

public boolean hasMessages()

Return true if there are messages waiting to be processed.

Returns:

true if size of the message queue is > 0.

messageToBus

public boolean messageToBus(MessageInfo ro)

Add the message to the message bus, with the following rules:

Parameters:

ro - message with full ServerHandler handler details in a BusEntity.

Returns:

true if added, false if there was an error.

processNextMessage

public void processNextMessage()
                        throws java.lang.Exception

Process the queue of messages and return the next one determined by resource allocation.

Throws:

java.lang.Exception - any error.

cancelMessage

public void cancelMessage(java.lang.String ticket)

Remove the message with the specified ticket number from the queue.

Parameters:

ticket - unique ticket number, equivalent to the communication ID.