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Commit 88424a64 authored by duanledexianxianxian's avatar duanledexianxianxian 😁
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maven/flink-quickstart.iml
View file @ 88424a64
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4" />
\ No newline at end of file
<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
<output url="file://$MODULE_DIR$/target/classes" />
<output-test url="file://$MODULE_DIR$/target/test-classes" />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
<excludeFolder url="file://$MODULE_DIR$/target" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-java:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-core:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-annotations:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-metrics-core:1.9.0" level="project" />
<orderEntry type="library" name="Maven: com.esotericsoftware.kryo:kryo:2.24.0" level="project" />
<orderEntry type="library" name="Maven: com.esotericsoftware.minlog:minlog:1.2" level="project" />
<orderEntry type="library" name="Maven: org.objenesis:objenesis:2.1" level="project" />
<orderEntry type="library" name="Maven: commons-collections:commons-collections:3.2.2" level="project" />
<orderEntry type="library" name="Maven: org.apache.commons:commons-compress:1.18" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-shaded-asm-6:6.2.1-7.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.commons:commons-lang3:3.3.2" level="project" />
<orderEntry type="library" name="Maven: org.apache.commons:commons-math3:3.5" level="project" />
<orderEntry type="library" name="Maven: org.slf4j:slf4j-api:1.7.15" level="project" />
<orderEntry type="library" name="Maven: com.google.code.findbugs:jsr305:1.3.9" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:force-shading:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-streaming-java_2.11:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-runtime_2.11:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-queryable-state-client-java:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-hadoop-fs:1.9.0" level="project" />
<orderEntry type="library" name="Maven: commons-io:commons-io:2.4" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-shaded-netty:4.1.32.Final-7.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-shaded-jackson:2.9.8-7.0" level="project" />
<orderEntry type="library" name="Maven: commons-cli:commons-cli:1.3.1" level="project" />
<orderEntry type="library" name="Maven: org.javassist:javassist:3.19.0-GA" level="project" />
<orderEntry type="library" name="Maven: org.scala-lang:scala-library:2.11.12" level="project" />
<orderEntry type="library" name="Maven: com.typesafe.akka:akka-actor_2.11:2.5.21" level="project" />
<orderEntry type="library" name="Maven: com.typesafe:config:1.3.3" level="project" />
<orderEntry type="library" name="Maven: org.scala-lang.modules:scala-java8-compat_2.11:0.7.0" level="project" />
<orderEntry type="library" name="Maven: com.typesafe.akka:akka-stream_2.11:2.5.21" level="project" />
<orderEntry type="library" name="Maven: org.reactivestreams:reactive-streams:1.0.2" level="project" />
<orderEntry type="library" name="Maven: com.typesafe:ssl-config-core_2.11:0.3.7" level="project" />
<orderEntry type="library" name="Maven: org.scala-lang.modules:scala-parser-combinators_2.11:1.1.1" level="project" />
<orderEntry type="library" name="Maven: com.typesafe.akka:akka-protobuf_2.11:2.5.21" level="project" />
<orderEntry type="library" name="Maven: com.typesafe.akka:akka-slf4j_2.11:2.5.21" level="project" />
<orderEntry type="library" name="Maven: org.clapper:grizzled-slf4j_2.11:1.3.2" level="project" />
<orderEntry type="library" name="Maven: com.github.scopt:scopt_2.11:3.5.0" level="project" />
<orderEntry type="library" name="Maven: org.xerial.snappy:snappy-java:1.1.4" level="project" />
<orderEntry type="library" name="Maven: com.twitter:chill_2.11:0.7.6" level="project" />
<orderEntry type="library" name="Maven: com.twitter:chill-java:0.7.6" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-clients_2.11:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-optimizer_2.11:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-shaded-guava:18.0-7.0" level="project" />
<orderEntry type="library" name="Maven: com.google.guava:guava:23.0" level="project" />
<orderEntry type="library" name="Maven: com.google.errorprone:error_prone_annotations:2.0.18" level="project" />
<orderEntry type="library" name="Maven: com.google.j2objc:j2objc-annotations:1.1" level="project" />
<orderEntry type="library" name="Maven: org.codehaus.mojo:animal-sniffer-annotations:1.14" level="project" />
<orderEntry type="library" scope="RUNTIME" name="Maven: org.slf4j:slf4j-log4j12:1.7.7" level="project" />
<orderEntry type="library" scope="RUNTIME" name="Maven: log4j:log4j:1.2.17" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-connector-kafka_2.11:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.flink:flink-connector-kafka-base_2.11:1.9.0" level="project" />
<orderEntry type="library" name="Maven: org.apache.kafka:kafka-clients:2.2.0" level="project" />
<orderEntry type="library" name="Maven: com.github.luben:zstd-jni:1.3.8-1" level="project" />
<orderEntry type="library" name="Maven: org.lz4:lz4-java:1.5.0" level="project" />
<orderEntry type="library" name="Maven: com.alibaba:fastjson:1.2.56" level="project" />
<orderEntry type="library" scope="PROVIDED" name="Maven: org.projectlombok:lombok:1.18.10" level="project" />
</component>
</module>
\ No newline at end of file
maven/pom.xml
View file @ 88424a64
......@@ -66,6 +66,12 @@ under the License.
<version>${flink.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>23.0</version>
</dependency>
<!-- Add connector dependencies here. They must be in the default scope (compile). -->
......
maven/src/main/java/com/duanledexianxianxian/maven/flink/StreamingJob.java
View file @ 88424a64
......@@ -20,18 +20,26 @@ package com.duanledexianxianxian.maven.flink;
import com.alibaba.fastjson.JSONObject;
import com.duanledexianxianxian.maven.flink.model.Student;
import com.google.common.collect.Lists;
import org.apache.flink.api.common.functions.AggregateFunction;
import org.apache.flink.api.common.functions.FlatMapFunction;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.common.serialization.SimpleStringSchema;
import org.apache.flink.api.java.functions.KeySelector;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.streaming.api.TimeCharacteristic;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.datastream.KeyedStream;
import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.windowing.assigners.TumblingEventTimeWindows;
import org.apache.flink.streaming.api.windowing.time.Time;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer;
import org.apache.flink.util.Collector;
import java.util.List;
import java.util.Properties;
import java.util.concurrent.TimeUnit;
/**
* Skeleton for a Flink Streaming Job.
......@@ -52,6 +60,8 @@ public class StreamingJob {
public static void main(String[] args) throws Exception {
// 创建执行环境上下文
final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
//设置窗口的时间单位为process time
env.setStreamTimeCharacteristic(TimeCharacteristic.IngestionTime);
Properties properties = new Properties();
properties.setProperty("bootstrap.servers", "113.105.144.9:9104");
......@@ -62,11 +72,11 @@ public class StreamingJob {
// consumer.setStartFromEarliest();
DataStream<String> stream = env
.addSource(consumer);
stream.print();
// stream.print();
// map 函数 flatMap是map的特殊形式
SingleOutputStreamOperator<Student> student = stream.map((MapFunction<String, Student>) value -> JSONObject.parseObject(value, Student.class));
student.print();
// student.print();
// flatMap函数
// SingleOutputStreamOperator<String> studentFlatMap = student.flatMap((FlatMapFunction<Student, String>) (value, out) -> {
......@@ -77,9 +87,8 @@ public class StreamingJob {
// studentFlatMap.print();
KeyedStream<Student, Integer> keyBy = student.keyBy((KeySelector<Student, Integer>) value -> value.getAge());
student.keyBy(Student::getSex).window(TumblingEventTimeWindows.of(Time.seconds(20))).aggregate(new Agg()).print();
keyBy.print();
/*
......@@ -106,4 +115,52 @@ public class StreamingJob {
// execute program
env.execute("Flink Streaming Java API Skeleton");
}
/**
* 自定义聚合函数
*/
public static class Agg implements AggregateFunction<Student, Tuple2<List<Student>, Long>, Tuple2<List<Student>, Long>> {
//创建一个数据统计的容器，提供给后续操作使用。
@Override
public Tuple2<List<Student>, Long> createAccumulator() {
return new Tuple2<List<Student>, Long>();
}
//每个元素被添加进窗口的时候调用。
//第一个参数是添加进窗口的元素，第二个参数是统计的容器(上面创建的那个)。
@Override
public Tuple2<List<Student>, Long> add(Student in, Tuple2<List<Student>, Long> acc) {
List<Student> list = acc.f0;
Long count = acc.f1;
if (list == null) {
list = Lists.newArrayList();
}
list.add(in);
if (count == null) {
count = 1L;
} else {
count++;
}
return new Tuple2<>(list, count);
}
//窗口统计事件触发时调用来返回出统计的结果。
@Override
public Tuple2<List<Student>, Long> getResult(Tuple2<List<Student>, Long> acc) {
return acc;
}
//只有在当窗口合并的时候调用,合并2个容器
@Override
public Tuple2<List<Student>, Long> merge(Tuple2<List<Student>, Long> acc1, Tuple2<List<Student>, Long> acc2) {
List<Student> list1 = acc1.f0;
List<Student> list2 = acc2.f0;
Long count1 = acc1.f1;
Long count2 = acc2.f1;
list1.addAll(list2);
return new Tuple2<>(list1, count1 + count2);
}
}
}
maven/src/main/java/com/duanledexianxianxian/maven/flink/common/constant/AppConstants.java 0 → 100644
View file @ 88424a64
package com.duanledexianxianxian.maven.flink.common.constant;
/**
* @author Administrator
*/
public class AppConstants {
/**
* 配置文件
*/
public final static String PROPERTIES_FILE_NAME = "application.properties";
public static final String STREAM_PARALLELISM = "stream.parallelism";
public static final String STREAM_CHECKPOINT_ENABLE = "stream.checkpoint.enable";
public static final String STREAM_CHECKPOINT_INTERVAL = "stream.checkpoint.interval";
}
maven/src/main/java/com/duanledexianxianxian/maven/flink/common/util/ExecutionEnvUtils.java 0 → 100644
View file @ 88424a64
package com.duanledexianxianxian.maven.flink.common.util;
import com.duanledexianxianxian.maven.flink.common.constant.AppConstants;
import org.apache.flink.api.common.restartstrategy.RestartStrategies;
import org.apache.flink.api.java.utils.ParameterTool;
import org.apache.flink.streaming.api.TimeCharacteristic;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* 执行环境参数工具类
*
* @author Administrator
*/
public class ExecutionEnvUtils {
/**
* Create parameter tool parameter tool.
*
* @param args the args
* @return the parameter tool
* @throws Exception the exception
*/
public static ParameterTool createParameterTool(final String[] args) throws Exception {
return ParameterTool
.fromPropertiesFile(ExecutionEnvUtils.class.getResourceAsStream(AppConstants.PROPERTIES_FILE_NAME))
.mergeWith(ParameterTool.fromArgs(args))
.mergeWith(ParameterTool.fromSystemProperties())
.mergeWith(ParameterTool.fromMap(getenv()));
}
/**
* The constant PARAMETER_TOOL.
*/
public static final ParameterTool PARAMETER_TOOL = createParameterTool();
private static ParameterTool createParameterTool() {
try {
return ParameterTool
.fromPropertiesFile(ExecutionEnvUtils.class.getResourceAsStream(AppConstants.PROPERTIES_FILE_NAME))
.mergeWith(ParameterTool.fromSystemProperties())
.mergeWith(ParameterTool.fromMap(getenv()));
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
/**
* 将环境变量中的值转换成map结构
*
* @return
*/
private static Map<String, String> getenv() {
Map<String, String> map = new HashMap<>();
for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
map.put(entry.getKey(), entry.getValue());
}
return map;
}
/**
* 设置默认参数
*
* @param parameterTool the parameter tool
* @return the stream execution environment
* @throws Exception the exception
*/
public static StreamExecutionEnvironment prepare(ParameterTool parameterTool) throws Exception {
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
// 设置作业的默认并行度
env.setParallelism(parameterTool.getInt(AppConstants.STREAM_PARALLELISM, 5));
// 关闭系统日志
env.getConfig().disableSysoutLogging();
// 失败之后，重拾4次，每次间隔10秒
env.getConfig().setRestartStrategy(RestartStrategies.fixedDelayRestart(4, 10000));
if (parameterTool.getBoolean(AppConstants.STREAM_CHECKPOINT_ENABLE, true)) {
// create a checkpoint every 5 seconds
env.enableCheckpointing(parameterTool.getInt(AppConstants.STREAM_CHECKPOINT_INTERVAL, 1000));
}
// make parameters available in the web interface
env.getConfig().setGlobalJobParameters(parameterTool);
// 默认是事件时间
env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);
return env;
}
}
maven/src/main/java/com/duanledexianxianxian/maven/flink/sink/kafka/Main.java 0 → 100644
View file @ 88424a64
/*
* 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 com.duanledexianxianxian.maven.flink.sink.kafka;
import com.alibaba.fastjson.JSONObject;
import com.duanledexianxianxian.maven.flink.common.util.ExecutionEnvUtils;
import com.duanledexianxianxian.maven.flink.model.Student;
import com.google.common.collect.Lists;
import org.apache.flink.api.common.functions.AggregateFunction;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.common.serialization.SimpleStringSchema;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.api.java.utils.ParameterTool;
import org.apache.flink.streaming.api.TimeCharacteristic;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.datastream.SingleOutputStreamOperator;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.windowing.assigners.TumblingEventTimeWindows;
import org.apache.flink.streaming.api.windowing.time.Time;
import org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumer;
import org.apache.kafka.clients.producer.KafkaProducer;
import java.util.List;
import java.util.Properties;
/**
* Skeleton for a Flink Streaming Job.
*
* <p>For a tutorial how to write a Flink streaming application, check the
* tutorials and examples on the <a href="http://flink.apache.org/docs/stable/">Flink Website</a>.
* ……
* <p>To package your application into a JAR file for execution, run
* 'mvn clean package' on the command line.
*
* <p>If you change the name of the main class (with the public static void main(String[] args))
* method, change the respective entry in the POM.xml file (simply search for 'mainClass').
*
* @author Administrator
*/
public class Main {
public static void main(String[] args) throws Exception {
final ParameterTool parameterTool = ExecutionEnvUtils.createParameterTool(args);
// 创建执行环境上下文
final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
//设置窗口的时间单位为process time
env.setStreamTimeCharacteristic(TimeCharacteristic.IngestionTime);
Properties properties = new Properties();
properties.setProperty("bootstrap.servers", "113.105.144.9:9104");
FlinkKafkaConsumer<String> consumer = new FlinkKafkaConsumer<>("topic_first", new SimpleStringSchema(), properties);
//从最早开始消费
DataStream<String> stream = env
.addSource(consumer);
// map 函数 flatMap是map的特殊形式
SingleOutputStreamOperator<Student> student = stream.map((MapFunction<String, Student>) value -> JSONObject.parseObject(value, Student.class));
student.keyBy(Student::getSex).window(TumblingEventTimeWindows.of(Time.seconds(20))).aggregate(new Agg()).addSink(new KafkaProducer<>).print();
// execute program
env.execute("Flink Streaming Java API Skeleton");
}
/**
* 自定义聚合函数
*/
public static class Agg implements AggregateFunction<Student, Tuple2<List<Student>, Long>, Tuple2<List<Student>, Long>> {
//创建一个数据统计的容器，提供给后续操作使用。
@Override
public Tuple2<List<Student>, Long> createAccumulator() {
return new Tuple2<List<Student>, Long>();
}
//每个元素被添加进窗口的时候调用。
//第一个参数是添加进窗口的元素，第二个参数是统计的容器(上面创建的那个)。
@Override
public Tuple2<List<Student>, Long> add(Student in, Tuple2<List<Student>, Long> acc) {
List<Student> list = acc.f0;
Long count = acc.f1;
if (list == null) {
list = Lists.newArrayList();
}
list.add(in);
if (count == null) {
count = 1L;
} else {
count++;
}
return new Tuple2<>(list, count);
}
//窗口统计事件触发时调用来返回出统计的结果。
@Override
public Tuple2<List<Student>, Long> getResult(Tuple2<List<Student>, Long> acc) {
return acc;
}
//只有在当窗口合并的时候调用,合并2个容器
@Override
public Tuple2<List<Student>, Long> merge(Tuple2<List<Student>, Long> acc1, Tuple2<List<Student>, Long> acc2) {
List<Student> list1 = acc1.f0;
List<Student> list2 = acc2.f0;
Long count1 = acc1.f1;
Long count2 = acc2.f1;
list1.addAll(list2);
return new Tuple2<>(list1, count1 + count2);
}
}
}
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