In the last blog, we passed Storm.Net.Adapter Create a Storm Topology - word count written in Csharp. This article describes how to write Java-side programs and how to publish them to the Storm environment for testing.
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STEP1: Clone storm official sample project storm-starter:
$ git clone git://github.com/apache/storm.git && cd storm/examples/storm-starter
STEP2: add multi language support for csharp:
Will be the last blog Create your first Storm topology using Cshare Project compilation completed in the project, copies the components produced into the / multilang/resources / folder.
STEP3: Create Topology with JAVA:
Add WordCountTopologyCsharp.java at / src/jvm/storm/starter/ New WordCountTopologyCsharp.java
/**
* 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 storm.starter;
import backtype.storm.Config;
import backtype.storm.LocalCluster;
import backtype.storm.StormSubmitter;
import backtype.storm.spout.ShellSpout;
import backtype.storm.task.ShellBolt;
import backtype.storm.topology.IRichBolt;
import backtype.storm.topology.IRichSpout;
import backtype.storm.topology.OutputFieldsDeclarer;
import backtype.storm.topology.TopologyBuilder;
import backtype.storm.tuple.Fields;
import java.util.Map;
/**
* This topology demonstrates Storm's stream groupings and multilang capabilities.
*/
public class WordCountTopologyCsharp {
public static class Generator extends ShellSpout implements IRichSpout {
public Generator() {
super("cmd", "/k", "CALL", "StormSimple.exe", "generator");
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
@Override
public Map<String, Object> getComponentConfiguration() {
return null;
}
}
public static class Splitter extends ShellBolt implements IRichBolt {
public Splitter() {
super("cmd", "/k", "CALL", "StormSimple.exe", "splitter");
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word", "count"));
}
@Override
public Map<String, Object> getComponentConfiguration() {
return null;
}
}
public static class Counter extends ShellBolt implements IRichBolt {
public Counter(){
super("cmd", "/k", "CALL", "StormSimple.exe", "counter");
}
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word", "count"));
}
@Override
public Map<String, Object> getComponentConfiguration() {
Reprinted at: https://www.cnblogs.com/NewIdea/p/deploy-wordcount-topology.html