Github user HeartSaVioR commented on a diff in the pull request:
https://github.com/apache/storm/pull/1897#discussion_r98635544
--- Diff:
examples/storm-starter/src/jvm/org/apache/storm/starter/RollingTopWords.java ---
@@ -17,114 +17,89 @@
*/
package org.apache.storm.starter;
-import org.apache.storm.Config;
-import org.apache.storm.testing.TestWordSpout;
-import org.apache.storm.topology.TopologyBuilder;
-import org.apache.storm.tuple.Fields;
-import org.apache.log4j.Logger;
import org.apache.storm.starter.bolt.IntermediateRankingsBolt;
import org.apache.storm.starter.bolt.RollingCountBolt;
import org.apache.storm.starter.bolt.TotalRankingsBolt;
-import org.apache.storm.starter.util.StormRunner;
+import org.apache.storm.testing.TestWordSpout;
+import org.apache.storm.topology.ConfigurableTopology;
+import org.apache.storm.topology.TopologyBuilder;
+import org.apache.storm.tuple.Fields;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
- * This topology does a continuous computation of the top N words that the
topology has seen in terms of cardinality.
- * The top N computation is done in a completely scalable way, and a
similar approach could be used to compute things
- * like trending topics or trending images on Twitter.
+ * This topology does a continuous computation of the top N words that the
+ * topology has seen in terms of cardinality. The top N computation is
done in a
+ * completely scalable way, and a similar approach could be used to compute
+ * things like trending topics or trending images on Twitter.
*/
-public class RollingTopWords {
+public class RollingTopWords extends ConfigurableTopology {
- private static final Logger LOG =
Logger.getLogger(RollingTopWords.class);
- private static final int DEFAULT_RUNTIME_IN_SECONDS = 60;
+ private static final Logger LOG =
LoggerFactory.getLogger(RollingTopWords.class);
private static final int TOP_N = 5;
- private final TopologyBuilder builder;
- private final String topologyName;
- private final Config topologyConfig;
- private final int runtimeInSeconds;
-
- public RollingTopWords(String topologyName) throws InterruptedException {
- builder = new TopologyBuilder();
- this.topologyName = topologyName;
- topologyConfig = createTopologyConfiguration();
- runtimeInSeconds = DEFAULT_RUNTIME_IN_SECONDS;
-
- wireTopology();
- }
-
- private static Config createTopologyConfiguration() {
- Config conf = new Config();
- conf.setDebug(true);
- return conf;
- }
-
- private void wireTopology() throws InterruptedException {
- String spoutId = "wordGenerator";
- String counterId = "counter";
- String intermediateRankerId = "intermediateRanker";
- String totalRankerId = "finalRanker";
- builder.setSpout(spoutId, new TestWordSpout(), 5);
- builder.setBolt(counterId, new RollingCountBolt(9, 3),
4).fieldsGrouping(spoutId, new Fields("word"));
- builder.setBolt(intermediateRankerId, new
IntermediateRankingsBolt(TOP_N), 4).fieldsGrouping(counterId, new Fields(
- "obj"));
- builder.setBolt(totalRankerId, new
TotalRankingsBolt(TOP_N)).globalGrouping(intermediateRankerId);
- }
-
- public void runLocally() throws InterruptedException {
- StormRunner.runTopologyLocally(builder.createTopology(), topologyName,
topologyConfig, runtimeInSeconds);
+ private RollingTopWords() {
}
- public void runRemotely() throws Exception {
- StormRunner.runTopologyRemotely(builder.createTopology(),
topologyName, topologyConfig);
+ public static void main(String[] args) throws Exception {
+ ConfigurableTopology.start(new RollingTopWords(), args);
}
/**
* Submits (runs) the topology.
*
- * Usage: "RollingTopWords [topology-name] [local|remote]"
+ * Usage: "RollingTopWords [topology-name] [-local]"
*
- * By default, the topology is run locally under the name
"slidingWindowCounts".
+ * By default, the topology is run locally under the name
+ * "slidingWindowCounts".
*
* Examples:
*
* ```
*
- * # Runs in local mode (LocalCluster), with topology name
"slidingWindowCounts"
- * $ storm jar storm-starter-jar-with-dependencies.jar
org.apache.storm.starter.RollingTopWords
+ * # Runs in local mode (LocalCluster), with topology name
+ * "slidingWindowCounts" $ storm jar
storm-starter-jar-with-dependencies.jar
--- End diff --
same things are repeated below
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