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[FLINK-3852] [quickstart] Add skeleton StreamingJob
- move Job to BatchJob - comment out transformers for the mainClass setting - tidy up SocketTextStreamWordCount - update docs This closes apache#1982
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73 changes: 73 additions & 0 deletions
73
...nk-quickstart-java/src/main/resources/archetype-resources/src/main/java/StreamingJob.java
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| package ${package}; | ||
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| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http:https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; | ||
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| /** | ||
| * Skeleton for a Flink Streaming Job. | ||
| * | ||
| * For a full example of a Flink Streaming Job, see the SocketTextStreamWordCount.java | ||
| * file in the same package/directory or have a look at the website. | ||
| * | ||
| * You can also generate a .jar file that you can submit on your Flink | ||
| * cluster. | ||
| * Just type | ||
| * mvn clean package | ||
| * in the projects root directory. | ||
| * You will find the jar in | ||
| * target/flink-quickstart-${version}.jar | ||
| * From the CLI you can then run | ||
| * ./bin/flink run -c ${package}.StreamingJob target/flink-quickstart-${version}.jar | ||
| * | ||
| * For more information on the CLI see: | ||
| * | ||
| * http:https://flink.apache.org/docs/latest/apis/cli.html | ||
| */ | ||
| public class StreamingJob { | ||
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| public static void main(String[] args) throws Exception { | ||
| // set up the streaming execution environment | ||
| final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment(); | ||
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| /** | ||
| * Here, you can start creating your execution plan for Flink. | ||
| * | ||
| * Start with getting some data from the environment, like | ||
| * env.readTextFile(textPath); | ||
| * | ||
| * then, transform the resulting DataStream<String> using operations | ||
| * like | ||
| * .filter() | ||
| * .flatMap() | ||
| * .join() | ||
| * .coGroup() | ||
| * | ||
| * and many more. | ||
| * Have a look at the programming guide for the Java API: | ||
| * | ||
| * http:https://flink.apache.org/docs/latest/apis/streaming/index.html | ||
| * | ||
| */ | ||
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| // execute program | ||
| env.execute("Flink Streaming Java API Skeleton"); | ||
| } | ||
| } |
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73 changes: 73 additions & 0 deletions
73
...quickstart-scala/src/main/resources/archetype-resources/src/main/scala/StreamingJob.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package ${package} | ||
|
|
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| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http:https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| import org.apache.flink.api.scala._ | ||
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| /** | ||
| * Skeleton for a Flink Streaming Job. | ||
| * | ||
| * For a full example of a Flink Streaming Job, see the SocketTextStreamWordCount.java | ||
| * file in the same package/directory or have a look at the website. | ||
| * | ||
| * You can also generate a .jar file that you can submit on your Flink | ||
| * cluster. Just type | ||
| * {{{ | ||
| * mvn clean package | ||
| * }}} | ||
| * in the projects root directory. You will find the jar in | ||
| * target/flink-quickstart-${version}.jar | ||
| * From the CLI you can then run | ||
| * {{{ | ||
| * ./bin/flink run -c ${package}.StreamingJob target/flink-quickstart-${version}.jar | ||
| * }}} | ||
| * | ||
| * For more information on the CLI see: | ||
| * | ||
| * http:https://flink.apache.org/docs/latest/apis/cli.html | ||
| */ | ||
| object StreamingJob { | ||
| def main(args: Array[String]) { | ||
| // set up the streaming execution environment | ||
| val env = StreamExecutionEnvironment.getExecutionEnvironment | ||
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||
| /** | ||
| * Here, you can start creating your execution plan for Flink. | ||
| * | ||
| * Start with getting some data from the environment, like | ||
| * env.readTextFile(textPath); | ||
| * | ||
| * then, transform the resulting DataStream[String] using operations | ||
| * like | ||
| * .filter() | ||
| * .flatMap() | ||
| * .join() | ||
| * .group() | ||
| * | ||
| * and many more. | ||
| * Have a look at the programming guide: | ||
| * | ||
| * http:https://flink.apache.org/docs/latest/apis/streaming/index.html | ||
| * | ||
| */ | ||
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| // execute program | ||
| env.execute("Flink Streaming Scala API Skeleton") | ||
| } | ||
| } |