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https://issues.apache.org/jira/browse/STORM-386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14115400#comment-14115400
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ASF GitHub Bot commented on STORM-386:
--------------------------------------
Github user d2r commented on a diff in the pull request:
https://github.com/apache/incubator-storm/pull/177#discussion_r16906745
--- Diff:
examples/storm-starter/src/jvm/storm/starter/WordCountTopologyNode.java ---
@@ -0,0 +1,121 @@
+/**
+ * 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.*;
+import backtype.storm.topology.base.BaseBasicBolt;
+import backtype.storm.tuple.Fields;
+import backtype.storm.tuple.Tuple;
+import backtype.storm.tuple.Values;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * This topology demonstrates Storm's stream groupings and multilang
capabilities.
+ */
+public class WordCountTopologyNode {
+ public static class SplitSentence extends ShellBolt implements IRichBolt
{
+
+ public SplitSentence() {
+ super("node", "splitsentence.js");
+ }
+
+ @Override
+ public void declareOutputFields(OutputFieldsDeclarer declarer) {
+ declarer.declare(new Fields("word"));
+ }
+
+ @Override
+ public Map<String, Object> getComponentConfiguration() {
+ return null;
+ }
+ }
+
+ public static class RandomSentence extends ShellSpout implements
IRichSpout {
--- End diff --
Indentation seems off here.
> Development of multilang protocol in nodejs
> -------------------------------------------
>
> Key: STORM-386
> URL: https://issues.apache.org/jira/browse/STORM-386
> Project: Apache Storm (Incubating)
> Issue Type: New Feature
> Environment: nodejs
> Reporter: Anya Tchernishov
>
> Support nodejs multilang protocol.
> Design considerations:
> - Emit will receive an object (like args and kwargs in python) and a callback
> that is called when task ids list is received.
> self.emit({tuple: [word]}, function(taskIds) {
> self.log(word + ' sent to task ids - ' + taskIds);
> });
> - The following methods will received done method that must be invoked on
> completion (same pattern used by the mocha test framework for async unit
> tests).
> - Internal implementation of emit uses Process.stdout.write without a
> callback since nodejs streams maintain FIFO order (so far, we have not found
> a need for providing a callback).
>
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