lbg.resource.service
Class LiveResourceService

java.lang.Object
  lbg.resource.service.LiveResourceService

All Implemented Interfaces:

AbstractResourceHandle, ResourceService

public class LiveResourceService
extends java.lang.Object
implements ResourceService

Live implementation of the Resource service, handling requests to a given Resource.

Author:

Xavier Dalem, Cyril Briquet

Constructor Summary

protected

LiveResourceService(LiveResource owner_resource) Create a service for a resource.

Method Summary

int	cacheCapacity()
void	cancelTask() Cancel the currently running task
ResourceHandle	createHandle() Get a handle to the owner resource
void	delete_me_runTask(Task t) Deprecated.
long	expectedTaskRuntime() How much time should running this task take ?
java.lang.String	id()
boolean	idle() Get the state of the resource
boolean	isAlive() Gets the Resource status
Task	runningTask() Deprecated.
boolean	runTask(Task t, GridData[][] working_set)
boolean	setWorkingSet(GridData[][] working_set)
long	taskStartTime() Returns the Task start time in seconds
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

LiveResourceService

protected LiveResourceService(LiveResource owner_resource)
                       throws GridException

Create a service for a resource.

Parameters:

owner_resource - The resource concerned by this service

Throws:

GridException

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

createHandle

public ResourceHandle createHandle()
                            throws GridException

Get a handle to the owner resource

Specified by:

createHandle in interface ResourceService

Throws:

GridException

id

public java.lang.String id()

Specified by:

id in interface AbstractResourceHandle

cacheCapacity

public int cacheCapacity()

Specified by:

cacheCapacity in interface AbstractResourceHandle

setWorkingSet

public boolean setWorkingSet(GridData[][] working_set)
                      throws GridException

Specified by:

setWorkingSet in interface AbstractResourceHandle

Returns:

true if the data described by the working set can be stored in the Resource data cache, or false if the working set size is larger than the cache limit, or if the data couldn't be scheduled for download

Throws:

GridException

runTask

public boolean runTask(Task t,
                       GridData[][] working_set)
                throws GridException

Specified by:

runTask in interface AbstractResourceHandle

Returns:

true if the data described by the working set can be stored in the Resource data cache, or false if the working set size is larger than the cache limit, or if the data couldn't be scheduled for download

Throws:

GridException

idle

public boolean idle()

Get the state of the resource

Specified by:

idle in interface AbstractResourceHandle

Returns:

true if the resource is idle

isAlive

public boolean isAlive()

Gets the Resource status

Specified by:

isAlive in interface AbstractResourceHandle

Returns:

true (this method is only there for networking needs)

runningTask

@Deprecated
public Task runningTask()

Deprecated.

Get the task currently run by the resource

Specified by:

runningTask in interface AbstractResourceHandle

delete_me_runTask

@Deprecated
public void delete_me_runTask(Task t)
                       throws GridException

Deprecated.

Ask the resource to run a task

Parameters:

t - The task to run

Throws:

GridException

To do:

cancelTask

public void cancelTask()
                throws GridException

Cancel the currently running task

Specified by:

cancelTask in interface AbstractResourceHandle

Throws:

GridException

expectedTaskRuntime

public long expectedTaskRuntime()
                         throws GridException

How much time should running this task take ?

Throws:

GridException

taskStartTime

public long taskStartTime()

Returns the Task start time in seconds

Specified by:

taskStartTime in interface AbstractResourceHandle