| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ambari.server.controller.gsinstaller; |
| |
| import org.apache.ambari.server.controller.internal.ResourceImpl; |
| import org.apache.ambari.server.controller.spi.NoSuchParentResourceException; |
| import org.apache.ambari.server.controller.spi.NoSuchResourceException; |
| import org.apache.ambari.server.controller.spi.Predicate; |
| import org.apache.ambari.server.controller.spi.Request; |
| import org.apache.ambari.server.controller.spi.RequestStatus; |
| import org.apache.ambari.server.controller.spi.Resource; |
| import org.apache.ambari.server.controller.spi.ResourceAlreadyExistsException; |
| import org.apache.ambari.server.controller.spi.ResourceProvider; |
| import org.apache.ambari.server.controller.spi.SystemException; |
| import org.apache.ambari.server.controller.spi.UnsupportedPropertyException; |
| import org.apache.ambari.server.controller.utilities.PredicateHelper; |
| import org.apache.ambari.server.controller.utilities.PropertyHelper; |
| |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| |
| /** |
| * An abstract resource provider for a gsInstaller defined cluster. |
| */ |
| public abstract class GSInstallerResourceProvider implements ResourceProvider { |
| |
| private final ClusterDefinition clusterDefinition; |
| |
| private final Set<Resource> resources = new HashSet<Resource>(); |
| |
| private final Resource.Type type; |
| |
| private final Set<String> propertyIds; |
| |
| |
| // ----- Constructors ------------------------------------------------------ |
| |
| /** |
| * Construct a resource provider based on the given cluster definition. |
| * |
| * @param clusterDefinition the cluster definition |
| */ |
| public GSInstallerResourceProvider(Resource.Type type, ClusterDefinition clusterDefinition) { |
| this.type = type; |
| this.clusterDefinition = clusterDefinition; |
| |
| Set<String> propertyIds = PropertyHelper.getPropertyIds(type); |
| this.propertyIds = new HashSet<String>(propertyIds); |
| this.propertyIds.addAll(PropertyHelper.getCategories(propertyIds)); |
| } |
| |
| |
| // ----- ResourceProvider -------------------------------------------------- |
| |
| @Override |
| public RequestStatus createResources(Request request) |
| throws SystemException, UnsupportedPropertyException, ResourceAlreadyExistsException, NoSuchParentResourceException { |
| throw new UnsupportedOperationException("Management operations are not supported"); |
| } |
| |
| @Override |
| public Set<Resource> getResources(Request request, Predicate predicate) |
| throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException { |
| |
| Set<Resource> resultSet = new HashSet<Resource>(); |
| |
| for (Resource resource : resources) { |
| if (predicate == null || predicate.evaluate(resource)) { |
| ResourceImpl newResource = new ResourceImpl(resource); |
| updateProperties(newResource, request, predicate); |
| resultSet.add(newResource); |
| } |
| } |
| return resultSet; |
| } |
| |
| @Override |
| public RequestStatus updateResources(Request request, Predicate predicate) |
| throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException { |
| throw new UnsupportedOperationException("Management operations are not supported"); |
| } |
| |
| @Override |
| public RequestStatus deleteResources(Predicate predicate) |
| throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException { |
| throw new UnsupportedOperationException("Management operations are not supported"); |
| } |
| |
| @Override |
| public Map<Resource.Type, String> getKeyPropertyIds() { |
| return PropertyHelper.getKeyPropertyIds(type); |
| } |
| |
| @Override |
| public Set<String> checkPropertyIds(Set<String> propertyIds) { |
| propertyIds = new HashSet<String>(propertyIds); |
| propertyIds.removeAll(this.propertyIds); |
| return propertyIds; |
| } |
| |
| |
| // ----- GSInstallerResourceProvider --------------------------------------- |
| |
| /** |
| * Update the resource with any properties handled by the resource provider. |
| * |
| * @param resource the resource to update |
| * @param request the request |
| * @param predicate the predicate |
| */ |
| public abstract void updateProperties(Resource resource, Request request, Predicate predicate); |
| |
| |
| // ----- accessors --------------------------------------------------------- |
| |
| /** |
| * Get the configuration provider. |
| * |
| * @return the configuration provider |
| */ |
| protected ClusterDefinition getClusterDefinition() { |
| return clusterDefinition; |
| } |
| |
| |
| // ----- helper methods ---------------------------------------------------- |
| |
| /** |
| * Get the set of property ids required to satisfy the given request. |
| * |
| * @param request the request |
| * @param predicate the predicate |
| * |
| * @return the set of property ids needed to satisfy the request |
| */ |
| protected Set<String> getRequestPropertyIds(Request request, Predicate predicate) { |
| Set<String> propertyIds = request.getPropertyIds(); |
| |
| // if no properties are specified, then return them all |
| if (propertyIds == null || propertyIds.isEmpty()) { |
| return new HashSet<String>(this.propertyIds); |
| } |
| |
| propertyIds = new HashSet<String>(propertyIds); |
| |
| if (predicate != null) { |
| propertyIds.addAll(PredicateHelper.getPropertyIds(predicate)); |
| } |
| return propertyIds; |
| } |
| |
| /** |
| * Check to see if the given set contains a property or category id that matches the given property id. |
| * |
| * @param ids the set of property/category ids |
| * @param propertyId the property id |
| * |
| * @return true if the given set contains a property id or category that matches the given property id |
| */ |
| protected static boolean contains(Set<String> ids, String propertyId) { |
| boolean contains = ids.contains(propertyId); |
| |
| if (!contains) { |
| String category = PropertyHelper.getPropertyCategory(propertyId); |
| while (category != null && !contains) { |
| contains = ids.contains(category); |
| category = PropertyHelper.getPropertyCategory(category); |
| } |
| } |
| return contains; |
| } |
| |
| /** |
| * Add a resource to the set of resources provided by this provider. |
| * |
| * @param resource the resource to add |
| */ |
| protected void addResource(Resource resource) { |
| resources.add(resource); |
| } |
| |
| /** |
| * Factory method for obtaining a resource provider based on a given type. |
| * |
| * @param type the resource type |
| * @param clusterDefinition the cluster definition |
| * |
| * @return a new resource provider |
| */ |
| public static ResourceProvider getResourceProvider(Resource.Type type, |
| ClusterDefinition clusterDefinition) { |
| switch (type) { |
| case Cluster: |
| return new GSInstallerClusterProvider(clusterDefinition); |
| case Service: |
| return new GSInstallerServiceProvider(clusterDefinition); |
| case Component: |
| return new GSInstallerComponentProvider(clusterDefinition); |
| case Host: |
| return new GSInstallerHostProvider(clusterDefinition); |
| case HostComponent: |
| return new GSInstallerHostComponentProvider(clusterDefinition); |
| default: |
| return new GSInstallerNoOpProvider(type, clusterDefinition); |
| } |
| } |
| } |