branch-0.23.1/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/PlatformName.java

/**
 * 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.util;

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

/**
 * A helper class for getting build-info of the java-vm. 
 * 
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class PlatformName {
  /**
   * The complete platform 'name' to identify the platform as 
   * per the java-vm.
   */
  private static final String platformName = System.getProperty("os.name") + "-" + 
    System.getProperty("os.arch") + "-" +
    System.getProperty("sun.arch.data.model");
  
  /**
   * Get the complete platform as per the java-vm.
   * @return returns the complete platform as per the java-vm.
   */
  public static String getPlatformName() {
    return platformName;
  }
  
  public static void main(String[] args) {
    System.out.println(platformName);
  }
}