content: /**
   * 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.api.resources;
  
  import java.util.ArrayList;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.ambari.server.api.services.Request;
  import org.apache.ambari.server.api.util.TreeNode;
  import org.apache.ambari.server.controller.internal.ResourceImpl;
  import org.apache.ambari.server.controller.spi.Resource;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  
  /**
   * Resource Definition for Mpack Resource types.
   */
  public class MpackResourceDefinition extends BaseResourceDefinition {
  
    private final static Logger LOG =
            LoggerFactory.getLogger(MpackResourceDefinition.class);
  
    public MpackResourceDefinition() {
      super(Resource.Type.Mpack);
    }
  
    @Override
    public String getPluralName() {
      return "mpacks";
    }
  
    @Override
    public String getSingularName() {
      return "mpack";
    }
  
    @Override
    public Set<SubResourceDefinition> getSubResourceDefinitions() {
      Set<SubResourceDefinition> setChildren = new HashSet<>();
      setChildren.add(new SubResourceDefinition(Resource.Type.StackVersion, null, false));
      return setChildren;
    }
  
    @Override
    public List<PostProcessor> getPostProcessors() {
      List<PostProcessor> listProcessors = new ArrayList<>();
      listProcessors.add(new MpackHrefProcessor());
      listProcessors.add(new MpackPostProcessor());
      return listProcessors;
    }
  
    /**
     * Post Processing the mpack href when the call comes from stack endpoint to ensure that the
     * href is a backreference to the mpacks end point
     */
    private class MpackHrefProcessor extends BaseHrefPostProcessor {
      @Override
      public void process(Request request, TreeNode<Resource> resultNode, String href) {
        if (href.contains("/stacks/")) {
          ResourceImpl mpack = (ResourceImpl) resultNode.getObject();
          Map<String, Map<String, Object>> mapInfo = mpack.getPropertiesMap();
          Map<String, Object> mpackInfo = mapInfo.get("MpackInfo");
  
          int idx = href.indexOf("stacks/");
          Long mpackId = (Long)mpackInfo.get("id");
          href = href.substring(0, idx) + "mpacks/" + mpackId;
          resultNode.setProperty("href", href);
        } else {
          super.process(request, resultNode, href);
        }
      }
    }
  
    /***
     * Post processing to change the name of the result node to mpack
     */
    private class MpackPostProcessor implements PostProcessor {
      @Override
      public void process(Request request, TreeNode<Resource> resultNode, String href) {
        if (href.contains("/stacks/")) {
          resultNode.setName("mpack");
  
        }
      }
    }
  
  
  }
  