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
   *
   *     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.api.query.render;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.ambari.server.api.services.Result;
  import org.apache.ambari.server.api.services.serializers.CsvSerializer;
  import org.apache.ambari.server.api.util.TreeNode;
  import org.apache.ambari.server.controller.spi.Resource;
  
  /**
   * Renderer which updates a KerberosHostIdentity resource so it may be serialized using a CSV serializer.
   * <p/>
   * This implementation extends the DefaultRenderer to add the header mapping and column order information
   * to the root of TreeNode structure.
   *
   * @see CsvSerializer
   */
  public class HostKerberosIdentityCsvRenderer extends DefaultRenderer {
  
    @Override
    public Result finalizeResult(Result queryResult) {
      TreeNode<Resource> resultTree = queryResult.getResultTree();
  
      if(resultTree != null) {
        // TODO: Determine which columns/fields are relevant for the query and prune as needed.
        Map<String, String> columnMap = new HashMap<String, String>() {{
          put("KerberosIdentity/host_name", "host");
          put("KerberosIdentity/description", "description");
          put("KerberosIdentity/principal_name", "principal name");
          put("KerberosIdentity/principal_type", "principal type");
          put("KerberosIdentity/principal_local_username", "local username");
          put("KerberosIdentity/keytab_file_path", "keytab file path");
          put("KerberosIdentity/keytab_file_owner", "keytab file owner");
          put("KerberosIdentity/keytab_file_owner_access", "keytab file owner access");
          put("KerberosIdentity/keytab_file_group", "keytab file group");
          put("KerberosIdentity/keytab_file_group_access", "keytab file group access");
          put("KerberosIdentity/keytab_file_mode", "keytab file mode");
          put("KerberosIdentity/keytab_file_installed", "keytab file installed");
        }};
  
        List<String> columnOrder = new ArrayList<String>() {{
          add("KerberosIdentity/host_name");
          add("KerberosIdentity/description");
          add("KerberosIdentity/principal_name");
          add("KerberosIdentity/principal_type");
          add("KerberosIdentity/principal_local_username");
          add("KerberosIdentity/keytab_file_path");
          add("KerberosIdentity/keytab_file_owner");
          add("KerberosIdentity/keytab_file_owner_access");
          add("KerberosIdentity/keytab_file_group");
          add("KerberosIdentity/keytab_file_group_access");
          add("KerberosIdentity/keytab_file_mode");
          add("KerberosIdentity/keytab_file_installed");
        }};
  
        resultTree.setProperty(CsvSerializer.PROPERTY_COLUMN_MAP, columnMap);
        resultTree.setProperty(CsvSerializer.PROPERTY_COLUMN_ORDER, columnOrder);
      }
  
      return queryResult;
    }
  }
  