Package org.lsst.ccs.bus

This package deals with standard messages for the CCS buses.

See: Description

Interface Summary

Interface	Description
AgentPresenceListener	Agents that implement this interface are notified when an agent is connecting or has disconnected on the status bus
AlarmMessage
BusMembershipListener	records the events that warn about a bus membership: connection, disconnection or suspicion of loss of connection.
BusMessageForwarder	A BusMessageForwarder receives a BusMessage from the transport layer and passes it to registered MessageListener.
BusMessagingLayer	Interface defining the access to the Transport Layer of Buses
BusPayload	Marker interface of all messages on the buses.
CommandBusMessage
CommandExecutor
CommandListener	Interface to receive commands, implemented by subsystems
DataStatusListener
EncodedStatusListens	Marker super-interface of all interfaces describing EncodedDataStatus handling.
KeyValueStatusListener
LogListener	Listens to logging events sent to logging bus
ProvidesDisconnectionInformation
SerializedDataStatusListener
StatusListener	to be implemented by codes that want to receive all status messages .
StatusListens	super-interface of all status listeners
SubsystemToken	an interface by with a Subsystem marks its presence on the bus: start of a subsystem, end or response to a pint.

Class Summary

Class	Description
Agent
AgentPresenceManager
Alarm
AlarmClear	An alarm cleared message that can be sent on the status bus
AlarmOnStateChange
Bus<T extends BusPayload>	Bus definitions.
BusApplicationLayer	Calls a BusMessagingLayer and adds all that is necessary to handle messages following application layer concerns.
BusMessage	Generic abstract bus message class Concrete implementations (command, status, logevent) will be sent on the appropriate bus.
BusMessagingFactory	Deprecated
CCSVersions	Utility class that encapsulates all the versions of the Agents on the CCS Environment
Command	A command sent on the CCS bus.
CommandAck
CommandAckOrReply
CommandReply	Reply to command.
DataCapsule	a Simplified Marshalled Object.
DataStatus_Deprecated	Status with additional information.
DataValueNotification	this class is to replace ValueNotification which is temporarily kept for compatibility.
DefaultLogMembershipListener
DistributionInfo	A Class to capture the information regarding this distribution.
EncodedDataStatus	Status with additional information.
HeartBeatStatus
KeyData	A key-value pair.
KeyData.CodedData	the value of data can be of a "well known type" (known to everybody) and so is coded directly otherwise it is encoded in a CodedData object.
KVList
LogEvent	Logging event to be sent on logging bus.
MessagingApplicationLayer	this is to distinguish the transport layer for message from their Application layer.
MessagingFactory	Messaging factory, insulating the application from the messaging middleware (JMS or other)
MetadataStatus	A special status publishing a name/value pair on the status bus
ModuleConfigCommand	Deprecated
ModuleInvokerCommand	Deprecated To be renamed RemoteCommand in version 2.0.0
NegativeAck	An ack message to notify initiator of a command rejection.
ObjectNType	This class contains information about an object and it class.
PingCommand	A Command which is broadcast and should never be waited upon (asynchronous calls only).
PingStatus
PositiveAck
PreparedTrendingStatus
RuntimeInfo	A Class to capture the Health of the running process.
StateChangeNotification
Status	A Status message that can be sent on the status bus
StatusAggregator	A StatusAggregator listens to the status bus and keeps track in memory of selected status data.
StatusAggregator.Statistics	Internal class, unmutable data structure with min, max, average and stddev.
StatusAggregator.TimedValue	Internal class, unmutable data structure with name, timestamp and value.
StatusCodec	utilities to code/decode DataStatus_Deprecated.
StatusForEnd	Represents a special status message for notifications of the end of execution of susbsystem with name/configuration/tag.
StatusForStart	Represents a special status message for notifications of a startup with name/configuration/tag.
SubSystemStatus	A Status message that sends the heartbeat of a subsystem
SystemCommand	A Command intended for a Subsystem (and not meant to be specific to a Module)
TransportManager
TrendingStatus	A special status publishing a name/value pair on the status bus Though it extends DataStatus_Deprecated the main purpose is slightly different.
UnparsedCommand
ValueNotification

Enum Summary

Enum	Description
Agent.AgentType
CommandReply.CommandStatus
DetailLevel	Detail level for status and log messages.
PriorityLevel	Message priority level

Exception Summary

Exception	Description
BadCommandException
CommandRejectedException
DestinationsException
DuplicateBusNameException
ErrorInCommandExecutionException
TransportException
TransportStateException

Package org.lsst.ccs.bus Description

This package deals with standard messages for the CCS buses. Since all messages are serialized ti is important that all SerialVersionUID are known to everybody.