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/*
 * 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 com.gemstone.gemfire.internal;

import com.gemstone.gemfire.Statistics;

/**
 * Abstracts the process statistics that are common on all platforms.
 * This is necessary for monitoring the health of GemFire components.
 *
 * @author David Whitlock
 *
 * @since 3.5
 * */
public abstract class ProcessStats {

  /** The underlying statistics */
  private final Statistics stats;

  /**
   * Creates a new ProcessStats that wraps the given
   * Statistics. 
   */
  ProcessStats(Statistics stats) {
    this.stats = stats;
  }

  /**
   * Closes these process stats
   *
   * @see Statistics#close
   */
  public final void close() {
    this.stats.close();
  }

  public final Statistics getStatistics() {
    return this.stats;
  }
  
  /**
   * Returns the size of this process (resident set on UNIX or working
   * set on Windows) in megabytes
   */
  public abstract long getProcessSize();

}