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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 org.apache.hadoop.hive.llap.metrics;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.UUID;

/**
 * Utility methods for metrics system.
 */
public class MetricsUtils {
  private static final String LOCALHOST = "localhost";
  public static final String METRICS_PROCESS_NAME = "LlapDaemon";


  public static String getHostName() {
    try {
      return InetAddress.getLocalHost().getHostName();
    } catch (UnknownHostException e) {
      return LOCALHOST;
    }
  }

  public static String getUUID() {
    return String.valueOf(UUID.randomUUID());
  }
}