/**
 * 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.hadoop.mapreduce.util;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;

/**
 * Plugin to calculate virtual and physical memories on Linux systems.
 * @deprecated 
 * Use {@link org.apache.hadoop.mapreduce.util.LinuxResourceCalculatorPlugin}
 * instead
 */
@Deprecated
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class LinuxMemoryCalculatorPlugin extends MemoryCalculatorPlugin {
  private LinuxResourceCalculatorPlugin resourceCalculatorPlugin;
  // Use everything from LinuxResourceCalculatorPlugin
  public LinuxMemoryCalculatorPlugin() {
    resourceCalculatorPlugin = new LinuxResourceCalculatorPlugin();
  }
  
  /** {@inheritDoc} */
  @Override
  public long getPhysicalMemorySize() {
    return resourceCalculatorPlugin.getPhysicalMemorySize();
  }
  
  /** {@inheritDoc} */
  @Override
  public long getVirtualMemorySize() {
    return resourceCalculatorPlugin.getVirtualMemorySize();
  }
}