WeiZhong94 commented on a change in pull request #817: [IOTDB-497] Apache Flink Connector Support URL: https://github.com/apache/incubator-iotdb/pull/817#discussion_r386091538
########## File path: example/flink/src/main/java/org/apache/iotdb/flink/FlinkIoTDBSink.java ########## @@ -0,0 +1,87 @@ +/* + * 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.iotdb.flink; + +import com.google.common.collect.Lists; +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.streaming.api.functions.source.SourceFunction; +import org.apache.iotdb.db.service.IoTDB; + +import java.util.HashMap; +import java.util.Map; +import java.util.Random; + +public class FlinkIoTDBSink { + public static void main(String[] args) throws Exception { + // launch the local iotDB server at default port: 6667 + IoTDB.main(args); + + Thread.sleep(3000); + + // run the flink job on local mini cluster + StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); + env.enableCheckpointing(3000); + + IoTDBOptions options = new IoTDBOptions(); + options.setHost("127.0.0.1"); + options.setPort(6667); + options.setUser("root"); + options.setPassword("root"); + options.setStorageGroup("root.sg"); + options.setTimeseriesOptionList(Lists.newArrayList(new IoTDBOptions.TimeseriesOption("root.sg.d1.s1"))); + + IoTSerializationSchema serializationSchema = new DefaultIoTSerializationSchema(options); + IoTDBSink ioTDBSink = new IoTDBSink(options, serializationSchema) + // enable batching + .withBatchSize(10); + + env.addSource(new SensorSource()) + .name("sensor-source") + .setParallelism(1) + + .addSink(ioTDBSink) + .name("iotdb-sink") + .setParallelism(1); + + env.execute("iotdb-flink-example"); + } + + private static class SensorSource implements SourceFunction<Map<String,String>> { + boolean running = true; + + @Override + public void run(SourceContext context) throws Exception { + Random random = new Random(); + while (running) { + Map tuple = new HashMap(); Review comment: Map -> Map<String, String> ? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
