Github user revans2 commented on a diff in the pull request:
https://github.com/apache/storm/pull/1056#discussion_r51266910
--- Diff:
external/storm-kafka/src/test/storm/kafka/KafkaTopologySpoutTestClient.java ---
@@ -0,0 +1,106 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.kafka;
+
+import backtype.storm.Config;
+import backtype.storm.LocalCluster;
+import backtype.storm.generated.StormTopology;
+import backtype.storm.spout.SchemeAsMultiScheme;
+import backtype.storm.task.OutputCollector;
+import backtype.storm.task.TopologyContext;
+import backtype.storm.topology.OutputFieldsDeclarer;
+import backtype.storm.topology.TopologyBuilder;
+import backtype.storm.topology.base.BaseRichBolt;
+import backtype.storm.tuple.Tuple;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Map;
+import java.util.Properties;
+import java.util.UUID;
+
+public class KafkaTopologySpoutTestClient {
+
+ private static StormTopology buildTopology(String zKeeperHost) {
+ ZkHosts zkHosts = new ZkHosts(zKeeperHost);
+ SpoutConfig spoutConfig = new SpoutConfig(zkHosts, "test",
"/test", UUID.randomUUID().toString());
+ spoutConfig.scheme = new SchemeAsMultiScheme(new StringScheme());
+ KafkaSpout kafkaSpout = new KafkaSpout(spoutConfig);
+
+ TopologyBuilder builder = new TopologyBuilder();
+ builder.setSpout("kafkaSpout", kafkaSpout);
+
+ Properties props = new Properties();
+ props.put("zookeeper.connect", zKeeperHost);
+ props.put("acks", "1");
+ props.put("key.serializer",
"org.apache.kafka.common.serialization.StringSerializer");
+ props.put("value.serializer",
"org.apache.kafka.common.serialization.StringSerializer");
+
+ KafkaBolt bolt = new KafkaBolt();
+ builder.setBolt("kafkaBolt", bolt).shuffleGrouping("kafkaSpout");
+
+ return builder.createTopology();
+ }
+
+ /**
+ * To run this topology ensure you have a kafka broker running and
provide connection string to broker as argument.
+ * Create a topic test with command line,
+ * kafka-topics.sh --create --zookeeper localhost:2181
--replication-factor 1 --partition 1 --topic test
+ * <p>
+ * run this program and run the kafka consumer:
+ * kafka-console-consumer.sh --zookeeper localhost:2181 --topic test
--from-beginning
+ * <p>
+ * you should see the messages flowing through.
+ *
+ * @param args
+ * @throws Exception
+ */
+ public static void main(String[] args) throws Exception {
+ if (args.length < 1) {
+ System.out.println("Please provide zookeeper host,e.g.
localhost:2181");
+ System.exit(1);
+ }
+
+ LocalCluster cluster = new LocalCluster();
+ cluster.submitTopology("kafkaTopologySpoutTest", new Config(),
buildTopology(args[0]));
+ Thread.sleep(30 * 1000);
+ cluster.killTopology("kafkaTopologySpoutTest");
+
+ cluster.shutdown();
+ }
--- End diff --
Because this is using a local mode cluster could you please modify this to
be a true JUnit test and spin up a separate instance of in-process zookeeper to
act as the transactional zookeeper instance?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
