第 7 章 协议的更改

  <!-- Vert.x 3.x -->
<plugin>
  <groupId>org.xolstice.maven.plugins</groupId>
  <artifactId>protobuf-maven-plugin</artifactId>
  <configuration>
    <protocArtifact>com.google.protobuf:protoc:3.2.0:exe:${os.detected.classifier}</protocArtifact>
    <pluginId>grpc-java</pluginId>
    <!-- NOTE: the gav coordinates point to the 3.x only compiler fork -->
    <pluginArtifact>io.vertx:protoc-gen-grpc-java:${vertx.grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
  </configuration>
  ...
</plugin>

  <!-- Vert.x 3.x -->
<plugin>
  <groupId>org.xolstice.maven.plugins</groupId>
  <artifactId>protobuf-maven-plugin</artifactId>
  <configuration>
    <protocArtifact>com.google.protobuf:protoc:3.2.0:exe:${os.detected.classifier}</protocArtifact>
    <pluginId>grpc-java</pluginId>
    <!-- NOTE: the gav coordinates point to the 3.x only compiler fork -->
    <pluginArtifact>io.vertx:protoc-gen-grpc-java:${vertx.grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
  </configuration>
  ...
</plugin>

    <!-- Vert.x 4.x -->
<plugin>
  <groupId>org.xolstice.maven.plugins</groupId>
  <artifactId>protobuf-maven-plugin</artifactId>
  <configuration>
    <protocArtifact>com.google.protobuf:protoc:3.2.0:exe:${os.detected.classifier}</protocArtifact>
    <pluginId>grpc-java</pluginId>
    <!-- NOTE: the gav coordinates point to the official compiler -->
    <pluginArtifact>io.grpc:protoc-gen-grpc-java:${vertx.grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
    <protocPlugins>
      <!-- NEW: a plugin is added to generate the Vert.x specific code -->
      <protocPlugin>
        <id>vertx-grpc-protoc-plugin</id>
        <groupId>io.vertx</groupId>
        <artifactId>vertx-grpc-protoc-plugin</artifactId>
        <version>${vertx.version}</version>
        <mainClass>io.vertx.grpc.protoc.plugin.VertxGrpcGenerator</mainClass>
      </protocPlugin>
    </protocPlugins>
  </configuration>
  ...
</plugin>

    <!-- Vert.x 4.x -->
<plugin>
  <groupId>org.xolstice.maven.plugins</groupId>
  <artifactId>protobuf-maven-plugin</artifactId>
  <configuration>
    <protocArtifact>com.google.protobuf:protoc:3.2.0:exe:${os.detected.classifier}</protocArtifact>
    <pluginId>grpc-java</pluginId>
    <!-- NOTE: the gav coordinates point to the official compiler -->
    <pluginArtifact>io.grpc:protoc-gen-grpc-java:${vertx.grpc.version}:exe:${os.detected.classifier}</pluginArtifact>
    <protocPlugins>
      <!-- NEW: a plugin is added to generate the Vert.x specific code -->
      <protocPlugin>
        <id>vertx-grpc-protoc-plugin</id>
        <groupId>io.vertx</groupId>
        <artifactId>vertx-grpc-protoc-plugin</artifactId>
        <version>${vertx.version}</version>
        <mainClass>io.vertx.grpc.protoc.plugin.VertxGrpcGenerator</mainClass>
      </protocPlugin>
    </protocPlugins>
  </configuration>
  ...
</plugin>

service Greeter {
  rpc SayHello (HelloRequest) returns (HelloReply) {}
}

service Greeter {
  rpc SayHello (HelloRequest) returns (HelloReply) {}
}

// 3.x
GreeterGrpc.GreeterVertxImplBase service =
  new GreeterGrpc.GreeterVertxImplBase() {
      ...
  }

// 3.x
GreeterGrpc.GreeterVertxImplBase service =
  new GreeterGrpc.GreeterVertxImplBase() {
      ...
  }

// 4.x
VertxGreeterGrpc.GreeterVertxImplBase service =
  new VertxGreeterGrpc.GreeterVertxImplBase() {
      ...
  }

// 4.x
VertxGreeterGrpc.GreeterVertxImplBase service =
  new VertxGreeterGrpc.GreeterVertxImplBase() {
      ...
  }

// 3.x
GreeterGrpc.GreeterVertxImplBase service =
  new GreeterGrpc.GreeterVertxImplBase() {
        @Override
        public void sayHello(HelloRequest request, Promise<HelloReply> future) {
          future.complete(
              HelloReply.newBuilder().setMessage(request.getName()).build());
        }
  }

// 3.x
GreeterGrpc.GreeterVertxImplBase service =
  new GreeterGrpc.GreeterVertxImplBase() {
        @Override
        public void sayHello(HelloRequest request, Promise<HelloReply> future) {
          future.complete(
              HelloReply.newBuilder().setMessage(request.getName()).build());
        }
  }

// 4.x
VertxGreeterGrpc.GreeterVertxImplBase service =
  new VertxGreeterGrpc.GreeterVertxImplBase() {
      @Override
      public Future<HelloReply> sayHello(HelloRequest request) {
        return Future.succeededFuture(
          HelloReply.newBuilder()
            .setMessage(request.getName())
            .build());
      }
  }

// 4.x
VertxGreeterGrpc.GreeterVertxImplBase service =
  new VertxGreeterGrpc.GreeterVertxImplBase() {
      @Override
      public Future<HelloReply> sayHello(HelloRequest request) {
        return Future.succeededFuture(
          HelloReply.newBuilder()
            .setMessage(request.getName())
            .build());
      }
  }