org.apache.reef.driver.catalog

Interface ResourceCatalog

All Known Implementing Classes:

ResourceCatalogImpl

public interface ResourceCatalog

A catalog of the resources available to a REEF instance.

This catalog contains static information about the resources and does not reflect that dynamic availability of resources. In other words: Its entries are an upper bound to what is available to a REEF Driver at any given moment in time.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ResourceCatalog.Descriptor Resource descriptor interface.

Method Summary

Methods

Modifier and Type	Method and Description
NodeDescriptor	getNode(String nodeId) Get the node descriptor with the given identifier.
Collection<NodeDescriptor>	getNodes() The global list of resources.
Collection<RackDescriptor>	getRacks() The global list of racks.

Method Detail

getNodes

Collection<NodeDescriptor> getNodes()

The global list of resources.

Returns:

a list of all the static resources available. This is an upper bound.

getRacks

Collection<RackDescriptor> getRacks()

The global list of racks.

Returns:

list of all rack descriptors

getNode

NodeDescriptor getNode(String nodeId)

Get the node descriptor with the given identifier.

Parameters:

nodeId - id of the node.

Returns:

the node descriptor assigned to the identifier.