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Commit e43226d

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tests grpc java
1 parent 304d790 commit e43226d

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9 files changed

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9 files changed

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‎java-grpc-demo/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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<modelVersion>4.0.0</modelVersion>
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<groupId>me.zaccoding</groupId>
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<artifactId>demo</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<io.grpc.version>1.16.1</io.grpc.version>
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<os-maven-plugin.version>1.6.1</os-maven-plugin.version>
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<protobuf-maven-plugin.version>0.6.1</protobuf-maven-plugin.version>
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<grpc.version>1.20.0</grpc.version>
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</properties>
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<dependencies>
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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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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-protobuf</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-stub</artifactId>
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<version>${grpc.version}</version>
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</dependency>
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</dependencies>
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<build>
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<extensions>
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<extension>
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<groupId>kr.motd.maven</groupId>
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<artifactId>os-maven-plugin</artifactId>
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<version>1.6.1</version>
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</extension>
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</extensions>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>1.8</source>
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<target>1.8</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.xolstice.maven.plugins</groupId>
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<artifactId>protobuf-maven-plugin</artifactId>
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<version>0.6.1</version>
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<configuration>
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<protocArtifact>
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com.google.protobuf:protoc:3.3.0:exe:${os.detected.classifier}
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</protocArtifact>
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<pluginId>grpc-java</pluginId>
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<pluginArtifact>
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io.grpc:protoc-gen-grpc-java:1.4.0:exe:${os.detected.classifier}
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</pluginArtifact>
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<attachProtoSources>false</attachProtoSources>
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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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</build>
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</project>
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package demo;
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import demo.sample1.client.Sample1GrpcClient;
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import demo.sample1.server.Sample1GrpcServer;
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import demo.util.SimpleLogger;
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/**
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* @GitHub : https://github.com/zacscoding
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*/
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public class DemoApplication {
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public static void main(String[] args) throws Exception {
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SampleRunner runner = SampleRunner.SAMPLE1;
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SimpleLogger.println("Running samples {} - {}", runner, runner.getDescription());
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switch (runner) {
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case SAMPLE1:
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runSample1();
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break;
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default:
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SimpleLogger.println("Invalid sample runner : " + runner);
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}
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}
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private static void runSample1() throws Exception {
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final String address = "127.0.0.1";
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final Integer port = 8888;
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Sample1GrpcServer server = new Sample1GrpcServer(port);
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server.start();
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Sample1GrpcClient client = new Sample1GrpcClient(address, port);
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client.request();
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Sample1GrpcClient client2 = new Sample1GrpcClient(address, port);
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client2.request();
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server.interrupt();
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}
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}
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package demo;
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/**
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* @GitHub : https://github.com/zacscoding
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*/
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public enum SampleRunner {
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SAMPLE1("Basic grpc server & client");
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String description;
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SampleRunner(String description) {
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this.description = description;
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}
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public String getDescription() {
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return description;
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}
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}
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package demo.sample1.client;
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import demo.sample1.protos.HelloRequest;
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import demo.sample1.protos.HelloResponse;
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import demo.sample1.protos.HelloServiceGrpc;
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import demo.util.SimpleLogger;
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import io.grpc.ManagedChannel;
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import io.grpc.ManagedChannelBuilder;
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import java.util.Objects;
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/**
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* https://github.com/eugenp/tutorials/tree/master/grpc/
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*/
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public class Sample1GrpcClient {
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private String address;
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private int port;
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public Sample1GrpcClient(String address, Integer port) {
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this.address = Objects.requireNonNull(address, "address must be not null");
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this.port = Objects.requireNonNull(port, "port must be not null");
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}
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public void request() {
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ManagedChannel channel = ManagedChannelBuilder.forAddress(address, port)
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.usePlaintext()
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.build();
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HelloServiceGrpc.HelloServiceBlockingStub stub = HelloServiceGrpc.newBlockingStub(channel);
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HelloResponse helloResponse = stub.hello(
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HelloRequest.newBuilder()
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.setFirstName("zaccoding")
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.setLastName("gRPC")
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.build()
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);
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SimpleLogger.info("Received gRPC response : {}", helloResponse);
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channel.shutdown();
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}
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}
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/**
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* for protos
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*/
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package demo.sample1.protos;
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package demo.sample1.server;
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import demo.sample1.protos.HelloRequest;
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import demo.sample1.protos.HelloResponse;
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import demo.sample1.protos.HelloServiceGrpc.HelloServiceImplBase;
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import demo.util.SimpleLogger;
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import io.grpc.stub.StreamObserver;
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/**
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* https://github.com/eugenp/tutorials/tree/master/grpc/
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*/
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public class HelloServiceImpl extends HelloServiceImplBase {
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@Override
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public void hello(HelloRequest request, StreamObserver<HelloResponse> responseObserver) {
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SimpleLogger.println("[Sample1HelloService] Request received from client : \n{}", request);
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String greeting = new StringBuilder().append("Hello,")
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.append(request.getFirstName())
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.append(" ")
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.append(request.getLastName())
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.toString();
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HelloResponse response = HelloResponse.newBuilder()
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.setGreeting(greeting)
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.build();
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responseObserver.onNext(response);
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responseObserver.onCompleted();
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}
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}
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package demo.sample1.server;
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import demo.util.SimpleLogger;
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import io.grpc.Server;
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import io.grpc.ServerBuilder;
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import java.util.Objects;
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/**
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* https://github.com/eugenp/tutorials/tree/master/grpc/
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*/
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public class Sample1GrpcServer extends Thread {
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private Server server;
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private int port;
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public Sample1GrpcServer(Integer port) {
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super.setDaemon(true);
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this.port = Objects.requireNonNull(port, "port must be not null");
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}
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@Override
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public void run() {
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if (isRunning()) {
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SimpleLogger.info("Already sample1 grpc server is running", null);
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return;
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}
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try {
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SimpleLogger.info("[Server] Try to start sample1 grpc server with {}", port);
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server = ServerBuilder.forPort(port)
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.addService(new HelloServiceImpl())
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.build();
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server = server.start();
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server.awaitTermination();
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} catch (Exception e) {
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if (isRunning()) {
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server.shutdown();
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}
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if (e instanceof InterruptedException) {
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return;
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}
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SimpleLogger.error("[Server] Failed to start sample1 grcp server", e);
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}
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}
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public boolean isRunning() {
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return server != null
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&& !server.isShutdown()
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&& !server.isTerminated();
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}
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}

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