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https://issues.apache.org/jira/browse/FLINK-3551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15696363#comment-15696363
]
ASF GitHub Bot commented on FLINK-3551:
---------------------------------------
Github user thvasilo commented on a diff in the pull request:
https://github.com/apache/flink/pull/2761#discussion_r89645498
--- Diff:
flink-examples/flink-examples-streaming/src/main/scala/org/apache/flink/streaming/scala/examples/kafka/ReadFromKafka.scala
---
@@ -0,0 +1,72 @@
+/*
+ * 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 org.apache.flink.streaming.scala.examples.kafka
+
+import org.apache.flink.api.common.restartstrategy.RestartStrategies
+import org.apache.flink.api.java.utils.ParameterTool
+import org.apache.flink.streaming.api.scala._
+import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer08
+import org.apache.flink.streaming.util.serialization.SimpleStringSchema
+
+/**
+ * Read Strings from Kafka and print them to standard out.
+ * Note: On a cluster, DataStream.print() will print to the TaskManager's
.out file!
+ *
+ * Please pass the following arguments to run the example:
+ * --topic test
+ * --bootstrap.servers localhost:9092
+ * --zookeeper.connect localhost:2181
+ * --group.id myconsumer
+ *
+ */
+object ReadFromKafka {
+
+ def main(args: Array[String]): Unit = {
+
+ // parse input arguments
+ val params = ParameterTool.fromArgs(args)
+
+ if (params.getNumberOfParameters < 4) {
+ println("Missing parameters!\nUsage: Kafka --topic <topic> " +
+ "--bootstrap.servers <kafka brokers> --zookeeper.connect <zk
quorum> --group.id <some id>")
+ return
+ }
+
+ val env = StreamExecutionEnvironment.getExecutionEnvironment
+ env.getConfig.disableSysoutLogging
+
env.getConfig.setRestartStrategy(RestartStrategies.fixedDelayRestart(4, 10000))
+ // create a checkpoint every 5 seconds
+ env.enableCheckpointing(5000)
+ // make parameters available in the web interface
+ env.getConfig.setGlobalJobParameters(params)
+
+ // create a Kafka streaming source consumer for Kafka 0.8.x
+ val kafkaConsumer = new FlinkKafkaConsumer08(
--- End diff --
I would suggest to keep it as is for now unless a project committer
suggests otherwise.
The linked issue would indicate that the intention is to have different
versions, but I guess that would affect the release as well, since different
jar files would need to be generated.
> Sync Scala and Java Streaming Examples
> --------------------------------------
>
> Key: FLINK-3551
> URL: https://issues.apache.org/jira/browse/FLINK-3551
> Project: Flink
> Issue Type: Sub-task
> Components: Examples
> Affects Versions: 1.0.0
> Reporter: Stephan Ewen
> Assignee: Lim Chee Hau
> Fix For: 1.0.1
>
>
> The Scala Examples lack behind the Java Examples
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