| /** |
| * 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 com.datatorrent.contrib.nifi.demo; |
| |
| import org.apache.apex.malhar.lib.wal.WindowDataManager; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.nifi.remote.client.SiteToSiteClient; |
| import org.apache.nifi.remote.client.SiteToSiteClientConfig; |
| |
| import com.datatorrent.api.DAG; |
| import com.datatorrent.api.LocalMode; |
| import com.datatorrent.api.StreamingApplication; |
| import com.datatorrent.contrib.nifi.NiFiSinglePortInputOperator; |
| import com.datatorrent.lib.io.ConsoleOutputOperator; |
| |
| /** |
| * A sample application that shows how to receive data to a NiFi Output Port. |
| */ |
| public class TestNiFiInputApplication implements StreamingApplication |
| { |
| |
| @Override |
| public void populateDAG(DAG dag, Configuration conf) |
| { |
| final SiteToSiteClientConfig clientConfig = new SiteToSiteClient.Builder() |
| .url("http://localhost:8080/nifi") |
| .portName("Apex") |
| .requestBatchCount(5) |
| .buildConfig(); |
| |
| final SiteToSiteClient.Builder builder = new SiteToSiteClient.Builder().fromConfig(clientConfig); |
| |
| final WindowDataManager windowDataManager = new WindowDataManager.NoopWindowDataManager(); |
| |
| NiFiSinglePortInputOperator nifi = dag.addOperator("nifi", new NiFiSinglePortInputOperator(builder, windowDataManager)); |
| ConsoleOutputOperator console = dag.addOperator("console", new ConsoleOutputOperator()); |
| dag.addStream("nifi_console", nifi.outputPort, console.input).setLocality(null); |
| } |
| |
| public static void main(String[] args) throws Exception |
| { |
| StreamingApplication app = new TestNiFiInputApplication(); |
| LocalMode.runApp(app, new Configuration(false), 10000); |
| Thread.sleep(2000); |
| System.exit(0); |
| } |
| } |