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new maven jar called flatbuffers-java-grpc which contains utility … (#4558)
* new maven jar called flatbuffers-java-grpc which contains utility class supporting generated code for grpc over flatbuffers; grpc java unit test based on maven and junit (maven is used only for simplicity of testing); removed straneous namespace_test/NamespaceA/TableInC.java which is not longer used in the test and no longer generated but contains complilation errors if java compiler picks it up * moved java grpc tests files according to review request * Added missing generated code for Java gRPC. Change-Id: Iada090fe2e99b80a4b7c2f8e39c838a992a1feae * added missing name and url
This commit is contained in:
Yuri Finkelstein
committed by
Wouter van Oortmerssen
Wouter van Oortmerssen
parent
0c86929e39
commit
99a8a68a80
119
grpc/tests/JavaGrpcTest.java
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119
grpc/tests/JavaGrpcTest.java
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/*
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* Copyright 2014 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import MyGame.Example.Monster;
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import MyGame.Example.MonsterStorageGrpc;
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import MyGame.Example.Stat;
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import com.google.flatbuffers.FlatBufferBuilder;
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import io.grpc.ManagedChannel;
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import io.grpc.ManagedChannelBuilder;
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import io.grpc.Server;
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import io.grpc.ServerBuilder;
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import org.junit.Assert;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.util.Iterator;
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/**
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* Demonstrates basic client-server interaction using grpc-java over netty.
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*/
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public class JavaGrpcTest {
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static final String BIG_MONSTER_NAME = "big-monster";
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static final short nestedMonsterHp = 600;
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static final short nestedMonsterMana = 1024;
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static final int numStreamedMsgs = 10;
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static class MyService extends MonsterStorageGrpc.MonsterStorageImplBase {
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@Override
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public void store(Monster request, io.grpc.stub.StreamObserver<Stat> responseObserver) {
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Assert.assertEquals(request.name(), BIG_MONSTER_NAME);
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Assert.assertEquals(request.hp(), nestedMonsterHp);
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Assert.assertEquals(request.mana(), nestedMonsterMana);
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System.out.println("Received store request from " + request.name());
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// Create a response from the incoming request name.
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FlatBufferBuilder builder = new FlatBufferBuilder();
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int statOffset = Stat.createStat(builder, builder.createString("Hello " + request.name()), 100, 10);
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builder.finish(statOffset);
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Stat stat = Stat.getRootAsStat(builder.dataBuffer());
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responseObserver.onNext(stat);
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responseObserver.onCompleted();
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}
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@Override
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public void retrieve(Stat request, io.grpc.stub.StreamObserver<Monster> responseObserver) {
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// Create 10 monsters for streaming response.
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for (int i=0; i<numStreamedMsgs; i++) {
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FlatBufferBuilder builder = new FlatBufferBuilder();
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int i1 = builder.createString(request.id() + " No." + i);
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Monster.startMonster(builder);
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Monster.addName(builder, i1);
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int i2 = Monster.endMonster(builder);
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Monster.finishMonsterBuffer(builder, i2);
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Monster monster = Monster.getRootAsMonster(builder.dataBuffer());
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responseObserver.onNext(monster);
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}
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responseObserver.onCompleted();
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}
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}
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private static int startServer() throws IOException {
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Server server = ServerBuilder.forPort(0).addService(new MyService()).build().start();
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return server.getPort();
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}
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@org.junit.Test
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public void testMonster() throws IOException {
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int port = startServer();
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ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", port)
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// Channels are secure by default (via SSL/TLS). For the example we disable TLS to avoid
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// needing certificates.
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.usePlaintext(true)
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.directExecutor()
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.build();
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MonsterStorageGrpc.MonsterStorageBlockingStub stub = MonsterStorageGrpc.newBlockingStub(channel);
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FlatBufferBuilder builder = new FlatBufferBuilder();
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int o_string = builder.createString(BIG_MONSTER_NAME);
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Monster.startMonster(builder);
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Monster.addName(builder, o_string);
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Monster.addHp(builder, nestedMonsterHp);
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Monster.addMana(builder, nestedMonsterMana);
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int monster1 = Monster.endMonster(builder);
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Monster.finishMonsterBuffer(builder, monster1);
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ByteBuffer buffer = builder.dataBuffer();
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Monster monsterRequest = Monster.getRootAsMonster(buffer);
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Stat stat = stub.store(monsterRequest);
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Assert.assertEquals(stat.id(), "Hello " + BIG_MONSTER_NAME);
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System.out.println("Received stat response from service: " + stat.id());
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Iterator<Monster> iterator = stub.retrieve(stat);
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int counter = 0;
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while(iterator.hasNext()) {
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Monster m = iterator.next();
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System.out.println("Received monster " + m.name());
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counter ++;
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}
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Assert.assertEquals(counter, numStreamedMsgs);
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System.out.println("FlatBuffers GRPC client/server test: completed successfully");
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}
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}
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4
grpc/tests/java-grpc-test.sh
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4
grpc/tests/java-grpc-test.sh
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#!/bin/sh
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# NOTE: make sure `mvn install` in /gprc is executed before running this test
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mvn test
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73
grpc/tests/pom.xml
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73
grpc/tests/pom.xml
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<project xmlns="http://maven.apache.org/POM/4.0.0" 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/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.google.flatbuffers</groupId>
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<artifactId>flatbuffers-parent</artifactId>
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<version>1.8.0</version>
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</parent>
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<artifactId>grpc-test</artifactId>
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<description>Example/Test project demonstrating usage of flatbuffers with GRPC-Java instead of protobufs
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</description>
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<properties>
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<gRPC.version>1.8.0</gRPC.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.google.flatbuffers</groupId>
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<artifactId>flatbuffers-java</artifactId>
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<version>${project.parent.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.google.flatbuffers</groupId>
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<artifactId>flatbuffers-java-grpc</artifactId>
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<version>${project.parent.version}</version>
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<scope>test</scope>
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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>${gRPC.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-netty</artifactId>
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<version>${gRPC.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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<scope>test</scope>
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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.codehaus.mojo</groupId>
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<artifactId>build-helper-maven-plugin</artifactId>
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<executions>
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<execution>
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<id>add-source</id>
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<phase>generate-sources</phase>
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<goals>
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<goal>add-test-source</goal>
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</goals>
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<configuration>
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<sources>
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<source>${project.basedir}</source>
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<source>${project.basedir}/../../tests</source>
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</sources>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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<!--<testSourceDirectory>${project.basedir}</testSourceDirectory>-->
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</build>
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</project>
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