Package jade.core.nodeMonitoring

Class NodeMonitoringService

java.lang.Object

jade.core.BaseService

jade.core.nodeMonitoring.NodeMonitoringService

All Implemented Interfaces:

Service

Direct Known Subclasses:

UDPNodeMonitoringService

public abstract class NodeMonitoringService
extends BaseService

Base service for services that implements ad hoc node monitoring mechanisms such as the UDPNodeMonitoringService

Nested Class Summary

Nested classes/interfaces inherited from interface jade.core.Service

Service.Slice, Service.SliceProxy

Field Summary

Fields

Modifier and Type	Field	Description
static String	NODE_REACHABLE	Vertical command issued on the Main Container when a peripheral node returns reachable after being unreachable for a while
static String	NODE_UNREACHABLE	Vertical command issued on the Main Container when a peripheral node becomes unreachable

Fields inherited from class jade.core.BaseService

ALL_DUMP_KEY, MAIN_SLICE, myFinder, myLogger, THIS_SLICE

Fields inherited from interface jade.core.Service

ADOPTED_NODE, DEAD_NODE, DEAD_PLATFORM_MANAGER, DEAD_REPLICA, DEAD_SLICE, NEW_NODE, NEW_REPLICA, NEW_SLICE, REATTACHED, RECONNECTED

Constructor Summary

Constructors

Constructor	Description
NodeMonitoringService()

Method Summary

Modifier and Type	Method	Description
abstract NodeFailureMonitor	getFailureMonitor()
String[]	getOwnedCommands()	This should be properly implemented by the services that owns vertival commands.
void	init(AgentContainer ac, Profile p)	Performs the passive initialization step of the service.

Methods inherited from class jade.core.BaseService

addAlias, boot, broadcast, clearCachedSlice, createInvokator, dump, getAllSlices, getAMSBehaviour, getCommandFilter, getCommandSink, getFreshSlice, getHelper, getHorizontalInterface, getIMTPManager, getLocalNode, getLocalSlice, getNumberOfSlices, getSlice, isLocal, lookupAlias, shutdown, stringifySlice, submit

Methods inherited from class java.lang.Object

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

Methods inherited from interface jade.core.Service

getName

Field Detail

NODE_UNREACHABLE

public static final String NODE_UNREACHABLE

Vertical command issued on the Main Container when a peripheral node becomes unreachable

See Also:

Constant Field Values

NODE_REACHABLE

public static final String NODE_REACHABLE

Vertical command issued on the Main Container when a peripheral node returns reachable after being unreachable for a while

See Also:

Constant Field Values

Constructor Detail

NodeMonitoringService

public NodeMonitoringService()

Method Detail

init

public void init(AgentContainer ac,
                 Profile p)
          throws ProfileException

Description copied from interface: Service

Performs the passive initialization step of the service. This method is called before activating the service. Its role should be simply the one of a constructor, setting up the internal data as needed. Service implementations should not use the Service Manager and Service Finder facilities from within this method. A distributed initialization protocol, if needed, should be exectuted within the boot() method.

Specified by:

init in interface Service

Overrides:

init in class BaseService

Parameters:

ac - The agent container this service is activated on.

p - The configuration profile for this service.

Throws:

ProfileException - If the given profile is not valid.

getOwnedCommands

public String[] getOwnedCommands()

Description copied from class: BaseService

This should be properly implemented by the services that owns vertival commands.

Specified by:

getOwnedCommands in interface Service

Overrides:

getOwnedCommands in class BaseService

Returns:

An array containing the names of all the vertical commands this service wants to own. If this service has no such commands (it acts purely as a command filter), it can return an empty array, or null as well.

See Also:

jade.core.Service#getCommandSink()

getFailureMonitor

public abstract NodeFailureMonitor getFailureMonitor()