| /* |
| * 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.flink.streaming.kafka.test.base; |
| |
| import org.apache.flink.api.common.restartstrategy.RestartStrategies; |
| import org.apache.flink.api.java.utils.ParameterTool; |
| import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; |
| |
| /** The util class for kafka example. */ |
| public class KafkaExampleUtil { |
| |
| public static StreamExecutionEnvironment prepareExecutionEnv(ParameterTool parameterTool) |
| throws Exception { |
| |
| if (parameterTool.getNumberOfParameters() < 5) { |
| System.out.println( |
| "Missing parameters!\n" |
| + "Usage: Kafka --input-topic <topic> --output-topic <topic> " |
| + "--bootstrap.servers <kafka brokers> " |
| + "--group.id <some id>"); |
| throw new Exception( |
| "Missing parameters!\n" |
| + "Usage: Kafka --input-topic <topic> --output-topic <topic> " |
| + "--bootstrap.servers <kafka brokers> " |
| + "--group.id <some id>"); |
| } |
| |
| StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); |
| env.getConfig().setRestartStrategy(RestartStrategies.fixedDelayRestart(4, 10000)); |
| env.enableCheckpointing(5000); // create a checkpoint every 5 seconds |
| env.getConfig() |
| .setGlobalJobParameters( |
| parameterTool); // make parameters available in the web interface |
| |
| return env; |
| } |
| } |