org.iids.aos.hostmanager
Class ResourceRegistry

java.lang.Object
  org.iids.aos.hostmanager.ResourceRegistry

All Implemented Interfaces:

java.lang.Runnable

public class ResourceRegistry
extends java.lang.Object
implements java.lang.Runnable

This class manages dynamic addition and removal of AgentScape resources (ie. classes that implement BasicResourceHandler).

TODO (implementation-wise) this scheme is a bit complex. The registry creates an agent that manages resource registration, which is accessed by sending it a RegistryMessage. This can be reworked: most of the logic should remain in the ResourceRegistry (it has access to the resource handler manager from AgentScape) but the interface of the agent should be registered through a BasicResourceHandler interface.

Nested Class Summary

static class	ResourceRegistry.RegistryMessage
static class	ResourceRegistry.ResourceRegistryAgent

Field Summary

static java.lang.String

REGISTRATION_KEY

Method Summary

void	deregisterResource(java.lang.String handlerID)
static ResourceRegistry	getInstance()
org.iids.aos.hostmanager.ResourceRegistryResult	registerResource(AgentHandle ah, java.lang.String resourceType)
void	run()
static ResourceRegistry	startInstance(ResourceHandlerManager rhm, AgentScapeConfig config) Start instance of a ResourceRegistry.

Methods inherited from class java.lang.Object

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

Field Detail

REGISTRATION_KEY

public static final java.lang.String REGISTRATION_KEY

See Also:

Constant Field Values

Method Detail

startInstance

public static ResourceRegistry startInstance(ResourceHandlerManager rhm,
                                             AgentScapeConfig config)
                                      throws StartupException

Start instance of a ResourceRegistry. There is only one registry per jvm (or hostmanager?).

Throws:

StartupException

getInstance

public static ResourceRegistry getInstance()

run

public void run()

Specified by:

run in interface java.lang.Runnable

registerResource

public org.iids.aos.hostmanager.ResourceRegistryResult registerResource(AgentHandle ah,
                                                                        java.lang.String resourceType)

deregisterResource

public void deregisterResource(java.lang.String handlerID)