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simplified gRPC impl using netty (#2914)
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‎labs/arthas-grpc-server/README.md

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# Arthas Grpc
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这个模块提供了一个轻量级的 Grpc 实现，目前任在开发中

‎labs/arthas-grpc-server/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>arthas-all</artifactId>
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<groupId>com.taobao.arthas</groupId>
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<version>${revision}</version>
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<relativePath>../../pom.xml</relativePath>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>arthas-grpc-server</artifactId>
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<name>arthas-grpc-server</name>
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<url>https://github.com/alibaba/arthas</url>
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<properties>
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<maven.compiler.source>8</maven.compiler.source>
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<maven.compiler.target>8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<grpc.version>1.46.0</grpc.version>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-bom</artifactId>
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<version>${grpc.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<!-- https://mvnrepository.com/artifact/io.netty/netty-codec-http2 -->
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<dependency>
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<groupId>io.netty</groupId>
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<artifactId>netty-codec-http2</artifactId>
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<version>4.1.72.Final</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java -->
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<dependency>
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<groupId>com.google.protobuf</groupId>
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<artifactId>protobuf-java</artifactId>
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<version>3.19.2</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>2.0.12</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>1.5.0</version>
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</dependency>
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<dependency>
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<groupId>com.taobao.arthas</groupId>
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<artifactId>arthas-common</artifactId>
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<version>${project.version}</version>
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</dependency>
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<!-- 测试用 -->
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-netty</artifactId>
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<scope>provided</scope>
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<exclusions>
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<exclusion>
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<groupId>io.netty</groupId>
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<artifactId>netty-codec-http2</artifactId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-services</artifactId>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.vintage</groupId>
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<artifactId>junit-vintage-engine</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>javax.annotation</groupId>
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<artifactId>javax.annotation-api</artifactId>
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<version>1.3.2</version>
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<scope>provided</scope>
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<optional>true</optional>
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</dependency>
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<dependency>
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<groupId>com.alibaba.arthas</groupId>
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<artifactId>arthas-repackage-logger</artifactId>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-core</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.xolstice.maven.plugins</groupId>
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<artifactId>protobuf-maven-plugin</artifactId>
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<version>0.6.1</version>
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<configuration>
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<protoSourceRoot>${basedir}/src/main/proto</protoSourceRoot>
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<protocArtifact>com.google.protobuf:protoc:3.11.0:exe:${os.detected.classifier}</protocArtifact>
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<pluginId>grpc-java</pluginId>
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<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.28.0:exe:${os.detected.classifier}</pluginArtifact>
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</configuration>
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<executions>
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<execution>
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<goals>
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<goal>compile</goal>
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<goal>compile-custom</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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<extensions>
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<extension>
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<groupId>kr.motd.maven</groupId>
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<artifactId>os-maven-plugin</artifactId>
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<version>1.4.1.Final</version>
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</extension>
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</extensions>
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</build>
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<profiles>
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<profile>
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<id>mac</id>
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<activation>
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<os>
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<family>mac</family>
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</os>
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</activation>
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<properties>
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<os.detected.classifier>osx-x86_64</os.detected.classifier>
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</properties>
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</profile>
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</profiles>
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</project>

‎labs/arthas-grpc-server/src/main/java/com/taobao/arthas/grpc/server/ArthasGrpcBootstrap.java

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package com.taobao.arthas.grpc.server;
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/**
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* @author: FengYe
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* @date: 2024/10/13 02:40
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* @description: ArthasGrpcServerBootstrap
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*/
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public class ArthasGrpcBootstrap {
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public static void main(String[] args) {
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ArthasGrpcServer arthasGrpcServer = new ArthasGrpcServer(9090, null);
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arthasGrpcServer.start();
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}
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}

‎labs/arthas-grpc-server/src/main/java/com/taobao/arthas/grpc/server/ArthasGrpcServer.java

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package com.taobao.arthas.grpc.server;
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import com.alibaba.arthas.deps.ch.qos.logback.classic.Level;
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import com.alibaba.arthas.deps.ch.qos.logback.classic.LoggerContext;
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import com.alibaba.arthas.deps.org.slf4j.Logger;
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import com.alibaba.arthas.deps.org.slf4j.LoggerFactory;
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import com.taobao.arthas.grpc.server.handler.GrpcDispatcher;
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import com.taobao.arthas.grpc.server.handler.Http2Handler;
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import com.taobao.arthas.grpc.server.handler.executor.GrpcExecutorFactory;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.ChannelOption;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.nio.NioEventLoopGroup;
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import io.netty.channel.socket.SocketChannel;
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import io.netty.channel.socket.nio.NioServerSocketChannel;
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import io.netty.handler.codec.http2.Http2FrameCodecBuilder;
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import io.netty.util.concurrent.DefaultEventExecutorGroup;
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import io.netty.util.concurrent.EventExecutorGroup;
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import java.lang.invoke.MethodHandles;
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/**
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* @author: FengYe
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* @date: 2024/7/3 上午12:30
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* @description: ArthasGrpcServer
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*/
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public class ArthasGrpcServer {
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private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass().getName());
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private int port = 9090;
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private String grpcServicePackageName;
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public ArthasGrpcServer(int port, String grpcServicePackageName) {
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this.port = port;
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this.grpcServicePackageName = grpcServicePackageName;
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}
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public void start() {
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EventLoopGroup bossGroup = new NioEventLoopGroup(1);
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EventLoopGroup workerGroup = new NioEventLoopGroup(10);
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GrpcDispatcher grpcDispatcher = new GrpcDispatcher();
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grpcDispatcher.loadGrpcService(grpcServicePackageName);
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GrpcExecutorFactory grpcExecutorFactory = new GrpcExecutorFactory();
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grpcExecutorFactory.loadExecutor(grpcDispatcher);
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try {
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ServerBootstrap b = new ServerBootstrap();
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b.group(bossGroup, workerGroup)
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.channel(NioServerSocketChannel.class)
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.option(ChannelOption.SO_BACKLOG, 1024)
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.childHandler(new ChannelInitializer<SocketChannel>() {
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@Override
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public void initChannel(SocketChannel ch) {
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ch.pipeline().addLast(Http2FrameCodecBuilder.forServer().build());
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ch.pipeline().addLast(new Http2Handler(grpcDispatcher, grpcExecutorFactory));
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}
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});
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Channel channel = b.bind(port).sync().channel();
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logger.info("ArthasGrpcServer start successfully on port: {}", port);
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channel.closeFuture().sync();
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} catch (InterruptedException e) {
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logger.error("ArthasGrpcServer start error", e);
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} finally {
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bossGroup.shutdownGracefully();
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workerGroup.shutdownGracefully();
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}
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}
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}

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