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.cassandra.sidecar.adapters.base.data;
  
  import java.util.NoSuchElementException;
  import javax.management.openmbean.CompositeData;
  
  /**
   * Utility class for operations with {@link CompositeData}
   */
  public class CompositeDataUtil
  {
  
      /**
       * Generic helper to extract attribute of a specific type from the CompositeData type.
       * @param data data being parsed
       * @param key attribute being extracted
       * @return attribute value
       * @param <T> return type
       */
      public static <T> T extractValue(CompositeData data, String key)
      {
          Object value = data.get(key);
          if (value == null)
          {
              throw new NoSuchElementException("No value is present for key: " + key);
          }
          try
          {
              return (T) value;
          }
          catch (ClassCastException cce)
          {
              throw new RuntimeException("Value type mismatched of key: " + key, cce);
          }
      }
  }
  