org.apache.ambari.server.controller.jdbc

Class JDBCResourceProvider

java.lang.Object

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

org.apache.ambari.server.controller.jdbc.JDBCResourceProvider

All Implemented Interfaces:

ResourceProvider

public class JDBCResourceProvider
extends BaseProvider
implements ResourceProvider

Generic JDBC based resource provider. TODO : Not used. Move to Test for API integration testing.

Constructor Summary

Constructors

Constructor and Description
JDBCResourceProvider(ConnectionFactory connectionFactory, Resource.Type type, Set<String> propertyIds, Map<Resource.Type,String> keyPropertyIds)

Method Summary

Modifier and Type	Method and Description
RequestStatus	createResources(Request request) Create the resources defined by the properties in the given request object.
RequestStatus	deleteResources(Request request, Predicate predicate) Delete the resources selected by the given predicate.
Map<Resource.Type,String>	getKeyPropertyIds() Get the key property ids for the resource type associated with this resource provider.
Set<Resource>	getResources(Request request, Predicate predicate) Get a set of resources based on the given request and predicate information.
RequestStatus	updateResources(Request request, Predicate predicate) Update the resources selected by the given predicate with the properties from the given request object.

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

Constructor Detail

JDBCResourceProvider

public JDBCResourceProvider(ConnectionFactory connectionFactory,
                            Resource.Type type,
                            Set<String> propertyIds,
                            Map<Resource.Type,String> keyPropertyIds)

Method Detail

getResources

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

Description copied from interface: ResourceProvider

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.

Specified by:

getResources in interface ResourceProvider

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

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

createResources

public RequestStatus createResources(Request request)
                              throws SystemException,
                                     UnsupportedPropertyException,
                                     ResourceAlreadyExistsException,
                                     NoSuchParentResourceException

Description copied from interface: ResourceProvider

Create the resources defined by the properties in the given request object.

Specified by:

createResources in interface ResourceProvider

Parameters:

request - the request object which defines the set of properties for the resources to be created

Returns:

the request status

Throws:

SystemException - an internal system exception occurred

UnsupportedPropertyException - the request contains unsupported property ids

ResourceAlreadyExistsException - attempted to create a resource which already exists

NoSuchParentResourceException - a parent resource of the resource to create doesn't exist

updateResources

public RequestStatus updateResources(Request request,
                                     Predicate predicate)
                              throws SystemException,
                                     UnsupportedPropertyException,
                                     NoSuchResourceException,
                                     NoSuchParentResourceException

Description copied from interface: ResourceProvider

Update the resources selected by the given predicate with the properties from the given request object.

Specified by:

updateResources in interface ResourceProvider

Parameters:

request - the request object which defines the set of properties for the resources to be updated

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

Returns:

the request status

Throws:

SystemException - an internal system exception occurred

UnsupportedPropertyException - the request contains unsupported property ids

NoSuchResourceException - the resource instance to be updated doesn't exist

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

deleteResources

public RequestStatus deleteResources(Request request,
                                     Predicate predicate)
                              throws SystemException,
                                     UnsupportedPropertyException,
                                     NoSuchResourceException,
                                     NoSuchParentResourceException

Description copied from interface: ResourceProvider

Delete the resources selected by the given predicate.

Specified by:

deleteResources in interface ResourceProvider

Parameters:

request - the request object which defines the set of properties for the resources to be updated

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

Returns:

the request status

Throws:

SystemException - an internal system exception occurred

UnsupportedPropertyException - the request contains unsupported property ids

NoSuchResourceException - the resource instance to be deleted doesn't exist

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

getKeyPropertyIds

public Map<Resource.Type,String> getKeyPropertyIds()

Description copied from interface: ResourceProvider

Get the key property ids for the resource type associated with this resource provider. The key properties are those that uniquely identify the resource.

For example, the resource 'HostComponent' is uniquely identified by its associated 'Cluster', 'Host' and 'Component' resources. The key property ids for a 'HostComponent' resource includes the property ids of the foreign key references from the 'HostComponent' to 'Cluster', 'Host' and 'Component' resources.

Specified by:

getKeyPropertyIds in interface ResourceProvider

Returns:

a map of key property ids