| /** |
| * 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(); |
| } |
| |
| |
| } |