org.hawkular.agent.monitor.inventory

Class ResourceTypeManager<L>

java.lang.Object

org.hawkular.agent.monitor.inventory.ResourceTypeManager<L>

Type Parameters:

L - the type of the protocol specific location, typically a subclass of NodeLocation

public final class ResourceTypeManager<L>
extends Object

Holds the graph of resource types. Instances of ResourceTypeManager are immutable and can thus be shared among concurrent threads. The graph itself is never exposed externally - ResourceTypeManager rather provides methods to retrieve data from the graph.

Author:

John Mazzitelli, Peter Palaga

Constructor Summary

Constructors

Constructor and Description
ResourceTypeManager(Collection<ResourceType<L>> allTypes) A simpler constructor that accepts a simple collection of all resource types that will be stored in this type manager.
ResourceTypeManager(Map<Name,TypeSet<ResourceType<L>>> resourceTypeSetMap, Collection<Name> setsToUse) Adds the given types to the manager, building a graph to represent the type hierarchy.

Method Summary

Modifier and Type	Method and Description
Set<ResourceType<L>>	getChildren(ResourceType<L> resourceType) Returns the direct child types of the given resource type.
Set<ResourceType<L>>	getParents(ResourceType<L> resourceType) Returns the direct parent types of the given resource type.
List<ResourceType<L>>	getResourceTypesBreadthFirst() Returns an immutable List of all ResourceTypes contained in resourceTypesGraph in breadth-first order.
Set<ResourceType<L>>	getRootResourceTypes() Returns resource types that are at the top of the hierarchy (that is, they do not have any parent types).

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceTypeManager

public ResourceTypeManager(Collection<ResourceType<L>> allTypes)

A simpler constructor that accepts a simple collection of all resource types that will be stored in this type manager.

Parameters:

allTypes - all types contained in this manager

ResourceTypeManager

public ResourceTypeManager(Map<Name,TypeSet<ResourceType<L>>> resourceTypeSetMap,
                           Collection<Name> setsToUse)
                    throws IllegalStateException

Adds the given types to the manager, building a graph to represent the type hierarchy.

Parameters:

resourceTypeSetMap - a full set of types, must be immutable

setsToUse - optional set of type names that the manager to care about - it will ignore others it finds. If null, then the full set is used (by "full set" it means the resourceTypeSetMap param).

Throws:

IllegalStateException - if types are missing (e.g. a type needs a parent but the parent is missing)

Method Detail

getResourceTypesBreadthFirst

public List<ResourceType<L>> getResourceTypesBreadthFirst()

Returns an immutable List of all ResourceTypes contained in resourceTypesGraph in breadth-first order.

Returns:

the list of all ResourceTypes

getRootResourceTypes

public Set<ResourceType<L>> getRootResourceTypes()

Returns resource types that are at the top of the hierarchy (that is, they do not have any parent types).

Returns:

root types

getChildren

public Set<ResourceType<L>> getChildren(ResourceType<L> resourceType)

Returns the direct child types of the given resource type.

Parameters:

resourceType - the type whose children are to be returned

Returns:

the direct children of the given resource type

getParents

public Set<ResourceType<L>> getParents(ResourceType<L> resourceType)

Returns the direct parent types of the given resource type.

Parameters:

resourceType - the type whose parents are to be returned

Returns:

the direct parents of the given resource type