org.apache.ambari.server.controller.internal

Class CompatibleRepositoryVersionResourceProvider

java.lang.Object

org.apache.ambari.server.controller.internal.BaseProvider

org.apache.ambari.server.controller.internal.AbstractResourceProvider

org.apache.ambari.server.controller.internal.AbstractAuthorizedResourceProvider

org.apache.ambari.server.controller.internal.AbstractControllerResourceProvider

org.apache.ambari.server.controller.internal.ReadOnlyResourceProvider

org.apache.ambari.server.controller.internal.CompatibleRepositoryVersionResourceProvider

All Implemented Interfaces:

ObservableResourceProvider, ResourceProvider

public class CompatibleRepositoryVersionResourceProvider
extends ReadOnlyResourceProvider

Resource provider for repository versions resources.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.ambari.server.controller.internal.AbstractResourceProvider

AbstractResourceProvider.Command<T>

Field Summary

Fields

Modifier and Type	Field and Description
static String	REPOSITORY_UPGRADES_SUPPORTED_TYPES_ID
static String	REPOSITORY_VERSION_DISPLAY_NAME_PROPERTY_ID
static String	REPOSITORY_VERSION_ID_PROPERTY_ID
static String	REPOSITORY_VERSION_REPOSITORY_VERSION_PROPERTY_ID
static String	REPOSITORY_VERSION_SERVICES
static String	REPOSITORY_VERSION_STACK_NAME_PROPERTY_ID
static String	REPOSITORY_VERSION_STACK_SERVICES
static String	REPOSITORY_VERSION_STACK_VERSION_PROPERTY_ID
static String	SUBRESOURCE_OPERATING_SYSTEMS_PROPERTY_ID

Fields inherited from class org.apache.ambari.server.controller.internal.AbstractResourceProvider

PROPERTIES_ATTRIBUTES_REGEX

Constructor Summary

Constructors

Constructor and Description
CompatibleRepositoryVersionResourceProvider(AmbariManagementController amc) Create a new resource provider.

Method Summary

Modifier and Type	Method and Description
Predicate	amendPredicate(Predicate predicate) Identify the case where this is a top-level request, containing ONLY the stack name and stack version.
protected Set<String>	getPKPropertyIds() Get the set of property ids that uniquely identify the resources of this provider.
Set<Resource>	getResources(Request request, Predicate predicate) Get a set of resources based on the given request and predicate information.
protected StackId	getStackInformationFromUrl(Map<String,Object> propertyMap) Gets the stack id from the request map

Methods inherited from class org.apache.ambari.server.controller.internal.ReadOnlyResourceProvider

createResources, deleteResources, updateResources

Methods inherited from class org.apache.ambari.server.controller.internal.AbstractControllerResourceProvider

getClusterId, getClusterResourceId, getClusterResourceId, getManagementController, getResourceProvider, getResourceProvider, init

Methods inherited from class org.apache.ambari.server.controller.internal.AbstractAuthorizedResourceProvider

createResourcesAuthorized, deleteResourcesAuthorized, getRequiredCreateAuthorizations, getRequiredDeleteAuthorizations, getRequiredGetAuthorizations, getRequiredUpdateAuthorizations, getResourceId, getResourcesAuthorized, getResourceType, isAuthorizedToCreateResources, isAuthorizedToDeleteResources, isAuthorizedToGetResources, isAuthorizedToUpdateResources, setRequiredCreateAuthorizations, setRequiredDeleteAuthorizations, setRequiredGetAuthorizations, setRequiredUpdateAuthorizations, updateResourcesAuthorized

Methods inherited from class org.apache.ambari.server.controller.internal.AbstractResourceProvider

addObserver, createResources, getConfigurationRequests, getKeyPropertyIds, getPropertyMaps, getPropertyMaps, getQueryParameterValue, getRequestStatus, getRequestStatus, getRequestStatus, getResources, modifyResources, notifyCreate, notifyDelete, notifyUpdate, parseProperties, updateObservers

Methods inherited from class org.apache.ambari.server.controller.internal.BaseProvider

checkCategory, checkConfigPropertyIds, checkPropertyIds, containsArguments, getCategoryIds, getPropertyIds, getRegexEntry, getRegexGroups, getRequestPropertyIds, isPatternKey, isPropertyCategoryRequested, isPropertyEntryRequested, isPropertyRequested, setResourceProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ambari.server.controller.spi.ResourceProvider

checkPropertyIds

Field Detail

REPOSITORY_VERSION_ID_PROPERTY_ID

public static final String REPOSITORY_VERSION_ID_PROPERTY_ID

See Also:

Constant Field Values

REPOSITORY_VERSION_STACK_NAME_PROPERTY_ID

public static final String REPOSITORY_VERSION_STACK_NAME_PROPERTY_ID

See Also:

Constant Field Values

REPOSITORY_VERSION_STACK_VERSION_PROPERTY_ID

public static final String REPOSITORY_VERSION_STACK_VERSION_PROPERTY_ID

See Also:

Constant Field Values

REPOSITORY_VERSION_REPOSITORY_VERSION_PROPERTY_ID

public static final String REPOSITORY_VERSION_REPOSITORY_VERSION_PROPERTY_ID

See Also:

Constant Field Values

REPOSITORY_VERSION_DISPLAY_NAME_PROPERTY_ID

public static final String REPOSITORY_VERSION_DISPLAY_NAME_PROPERTY_ID

See Also:

Constant Field Values

REPOSITORY_UPGRADES_SUPPORTED_TYPES_ID

public static final String REPOSITORY_UPGRADES_SUPPORTED_TYPES_ID

See Also:

Constant Field Values

REPOSITORY_VERSION_SERVICES

public static final String REPOSITORY_VERSION_SERVICES

See Also:

Constant Field Values

REPOSITORY_VERSION_STACK_SERVICES

public static final String REPOSITORY_VERSION_STACK_SERVICES

See Also:

Constant Field Values

SUBRESOURCE_OPERATING_SYSTEMS_PROPERTY_ID

public static final String SUBRESOURCE_OPERATING_SYSTEMS_PROPERTY_ID

Constructor Detail

CompatibleRepositoryVersionResourceProvider

public CompatibleRepositoryVersionResourceProvider(AmbariManagementController amc)

Create a new resource provider.

Method Detail

getResources

public Set<Resource> getResources(Request request,
                                  Predicate predicate)
                           throws SystemException,
                                  UnsupportedPropertyException,
                                  NoSuchResourceException,
                                  NoSuchParentResourceException

Description copied from class: AbstractAuthorizedResourceProvider

Get a set of resources based on the given request and predicate information.

Note that it is not required for this resource provider to completely filter the set of resources based on the given predicate. It may not be possible since some of the properties involved may be provided by another provider. This partial filtering is allowed because the predicate will always be applied by the calling cluster controller. The predicate is made available at this level so that some pre-filtering can be done as an optimization.

A simple implementation of a resource provider may choose to just return all of the resources of a given type and allow the calling cluster controller to filter based on the predicate.

This implementation attempts to authorize the authenticated user before performing the requested operation. If authorization fails, an AuthorizationException will be thrown.

This method may be overwritten by implementing classes to avoid performing authorization checks to get resources.

Specified by:

getResources in interface ResourceProvider

Overrides:

getResources in class ReadOnlyResourceProvider

Parameters:

request - the request object which defines the desired set of properties

predicate - the predicate object which can be used to filter which resources are returned

Returns:

a set of resources based on the given request and predicate information

Throws:

SystemException - an internal system exception occurred

AuthorizationException - if the authenticated user is not authorized to perform this operation

UnsupportedPropertyException - the request contains unsupported property ids

NoSuchResourceException - the requested resource instance doesn't exist

NoSuchParentResourceException - a parent resource of the requested resource doesn't exist

getPKPropertyIds

protected Set<String> getPKPropertyIds()

Description copied from class: AbstractResourceProvider

Get the set of property ids that uniquely identify the resources of this provider.

Specified by:

getPKPropertyIds in class AbstractResourceProvider

Returns:

the set of primary key properties

getStackInformationFromUrl

protected StackId getStackInformationFromUrl(Map<String,Object> propertyMap)

Gets the stack id from the request map

Parameters:

propertyMap - the request map

Returns:

the StackId, or null if not found.

amendPredicate

public Predicate amendPredicate(Predicate predicate)

Identify the case where this is a top-level request, containing ONLY the stack name and stack version. Determine all other compatible stacks and make a new Predicate out of them. Consider a stack STACK-2.2 that is compatible with 2.3 and 2.4. The result of this call will be a predicate like so (abbreviated):

 in -> AndPredicate([stack_name=STACK],[stack_version=2.2])
 out-> OrPredicate(
         AndPredicate([stack_name=STACK],[stack_version=2.2]),
         AndPredicate([stack_name=STACK],[stack_version=2.3]),
         AndPredicate([stack_name=STACK],[stack_version=2.4]) )
 

Any input predicate that does not conform to ONLY stack_name/stack_version will revert to the that predicate (return null).

Overrides:

amendPredicate in class ReadOnlyResourceProvider

Parameters:

predicate - the predicate passed in the request

Returns:

the new predicate, or null to leave the predicate unchanged.