org.apache.ambari.server.controller.internal

Class HttpPropertyProvider

java.lang.Object

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

org.apache.ambari.server.controller.internal.HttpPropertyProvider

All Implemented Interfaces:

PropertyProvider

public class HttpPropertyProvider
extends BaseProvider
implements PropertyProvider

Property provider for host component resources that is used to read HTTP data from another server.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HttpPropertyProvider.HttpPropertyRequest Represents an HTTP request to another server for properties to be used to populate an Ambari resource.

Constructor Summary

Constructors

Constructor and Description
HttpPropertyProvider(StreamProvider stream, Clusters clusters, String clusterNamePropertyId, String hostNamePropertyId, String publicHostNamePropertyId, String componentNamePropertyId, Map<String,List<HttpPropertyProvider.HttpPropertyRequest>> httpPropertyRequests)

Method Summary

Modifier and Type	Method and Description
Set<Resource>	populateResources(Set<Resource> resources, Request request, Predicate predicate) Populate the given set of resource with any properties that this property provider can provide and return a populated set of resources.

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.PropertyProvider

checkPropertyIds

Constructor Detail

HttpPropertyProvider

public HttpPropertyProvider(StreamProvider stream,
                            Clusters clusters,
                            String clusterNamePropertyId,
                            String hostNamePropertyId,
                            String publicHostNamePropertyId,
                            String componentNamePropertyId,
                            Map<String,List<HttpPropertyProvider.HttpPropertyRequest>> httpPropertyRequests)

Method Detail

populateResources

public Set<Resource> populateResources(Set<Resource> resources,
                                       Request request,
                                       Predicate predicate)
                                throws SystemException

Description copied from interface: PropertyProvider

Populate the given set of resource with any properties that this property provider can provide and return a populated set of resources. The provider may drop resources from the original set if it determines that the don't meet the conditions of the predicate.

Specified by:

populateResources in interface PropertyProvider

Parameters:

resources - the resources to be populated

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

predicate - the predicate object which filters which resources are returned

Returns:

the populated set of resources

Throws:

SystemException - thrown if resources cannot be populated