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 org.apache.apex.malhar.stream.api.impl;
  
  import java.util.UUID;
  
  import org.apache.hadoop.classification.InterfaceStability;
  
  import com.datatorrent.api.Operator;
  
  import static java.lang.System.currentTimeMillis;
  
  /**
   * A util class to generate unique ids in dag
   *
   * @since 3.4.0
   */
  @InterfaceStability.Evolving
  public class IDGenerator
  {
  
    public static String generateOperatorIDWithClock(Class<? extends Operator> operatorClazz)
    {
      return operatorClazz.getName() + currentTimeMillis();
    }
  
    public static String generateOperatorIDWithUUID(Class<? extends Operator> operatorClazz)
    {
      return operatorClazz.getName() + UUID.randomUUID();
    }
  
  
  }
  