org.lsst.ccs.messaging

Class MessagingAccessLayer

java.lang.Object

org.lsst.ccs.messaging.MessagingAccessLayer

public class MessagingAccessLayer
extends Object

Entry point for receiving messages from the buses. Its name is used as a unique identifier on the buses.

Author:

emarin

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MessagingAccessLayer.BusAccess<T extends BusMessage> Handler for processing received messages.

Constructor Summary

Constructors

Constructor and Description
MessagingAccessLayer(AgentInfo agent, MessagingAccessLayer.BusAccess... buses)

Method Summary

Modifier and Type	Method and Description
void	addBusMessagePreProcessor(BusMessagePreProcessor preProcessor) Add a BusMessagePreProcessor the the MessagingAccessLayer.
AgentInfo	getAgentInfo() Returns the descriptor of the associated Agent.
MessagingAccessLayer.BusAccess	getBusAccess(Bus bus)
Collection<MessagingAccessLayer.BusAccess>	getBusAccesses() This list of buses might be used by the messaging layer to determine on which buses the associated agent has to be connected to.
String	getName() Returns the name of the associated Agent.

Methods inherited from class java.lang.Object

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

Constructor Detail

MessagingAccessLayer

public MessagingAccessLayer(AgentInfo agent,
                            MessagingAccessLayer.BusAccess... buses)

Method Detail

getName

public String getName()

Returns the name of the associated Agent. This name must be unique on the buses. The uniqueness is enforced when connecting with the messaging layer.

Returns:

Agent name.

getAgentInfo

public AgentInfo getAgentInfo()

Returns the descriptor of the associated Agent.

Returns:

Agent descriptor.

getBusAccesses

public Collection<MessagingAccessLayer.BusAccess> getBusAccesses()

This list of buses might be used by the messaging layer to determine on which buses the associated agent has to be connected to.

Returns:

The list of Buses the layer has to be registered on.

getBusAccess

public MessagingAccessLayer.BusAccess getBusAccess(Bus bus)

addBusMessagePreProcessor

public void addBusMessagePreProcessor(BusMessagePreProcessor preProcessor)

Add a BusMessagePreProcessor the the MessagingAccessLayer. The ButMessagePreProcessor is added here to the appropriate Bus.

Parameters:

preProcessor - The BysMessagePreProcessor to be added.