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 storm.trident.operation;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import com.alibaba.jstorm.utils.JStormUtils;
  
  import backtype.storm.Config;
  import backtype.storm.topology.ResourceDeclarer;
  import backtype.storm.utils.Utils;
  
  /**
   * @param T Must always be the type of the extending class. i.e.
   * public class SubResourceDeclarer extends DefaultResourceDeclarer<SubResourceDeclarer> {...}
   */
  public class DefaultResourceDeclarer<T extends DefaultResourceDeclarer> implements ResourceDeclarer<T>, ITridentResource {
  
      private Map<String, Number> resources = new HashMap<>();
      private Map conf = Utils.readStormConfig();
  
      @Override
      public T setMemoryLoad(Number onHeap) {
          return setMemoryLoad(onHeap, JStormUtils.parseDouble(conf.get(Config.TOPOLOGY_COMPONENT_RESOURCES_OFFHEAP_MEMORY_MB)));
      }
  
      @Override
      public T setMemoryLoad(Number onHeap, Number offHeap) {
          if (onHeap != null) {
              onHeap = onHeap.doubleValue();
              resources.put(Config.TOPOLOGY_COMPONENT_RESOURCES_ONHEAP_MEMORY_MB, onHeap);
          }
          if (offHeap!=null) {
              offHeap = offHeap.doubleValue();
              resources.put(Config.TOPOLOGY_COMPONENT_RESOURCES_OFFHEAP_MEMORY_MB, offHeap);
          }
          return (T)this;
      }
  
      @Override
      public T setCPULoad(Number amount) {
          if(amount != null) {
              amount = amount.doubleValue();
              resources.put(Config.TOPOLOGY_COMPONENT_CPU_PCORE_PERCENT, amount);
          }
          return (T)this;
      }
  
      @Override
      public Map<String, Number> getResources() {
          return new HashMap<String, Number>(resources);
      }
  }
  