mirror of https://github.com/grpc/grpc-java.git
Update Android Helloworld example
This commit is contained in:
Xiao Hang
parent
66206399a6
commit
78caf51297
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@ -0,0 +1,184 @@
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package io.grpc.examples;
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import static io.grpc.stub.Calls.createMethodDescriptor;
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import static io.grpc.stub.Calls.asyncUnaryCall;
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import static io.grpc.stub.Calls.asyncServerStreamingCall;
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import static io.grpc.stub.Calls.asyncClientStreamingCall;
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import static io.grpc.stub.Calls.duplexStreamingCall;
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import static io.grpc.stub.Calls.blockingUnaryCall;
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import static io.grpc.stub.Calls.blockingServerStreamingCall;
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import static io.grpc.stub.Calls.unaryFutureCall;
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import static io.grpc.stub.ServerCalls.createMethodDefinition;
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import static io.grpc.stub.ServerCalls.asyncUnaryRequestCall;
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import static io.grpc.stub.ServerCalls.asyncStreamingRequestCall;
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import java.io.IOException;
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public class GreeterGrpc {
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private static final io.grpc.stub.Method<io.grpc.examples.Helloworld.HelloRequest,
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io.grpc.examples.Helloworld.HelloReply> METHOD_SAY_HELLO =
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io.grpc.stub.Method.create(
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io.grpc.MethodType.UNARY, "SayHello",
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io.grpc.nano.NanoUtils.<io.grpc.examples.Helloworld.HelloRequest>marshaller(
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new io.grpc.nano.Parser<io.grpc.examples.Helloworld.HelloRequest>() {
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@Override
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public io.grpc.examples.Helloworld.HelloRequest parse(com.google.protobuf.nano.CodedInputByteBufferNano input) throws IOException {
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return io.grpc.examples.Helloworld.HelloRequest.parseFrom(input);
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}
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}),
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io.grpc.nano.NanoUtils.<io.grpc.examples.Helloworld.HelloReply>marshaller(
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new io.grpc.nano.Parser<io.grpc.examples.Helloworld.HelloReply>() {
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@Override
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public io.grpc.examples.Helloworld.HelloReply parse(com.google.protobuf.nano.CodedInputByteBufferNano input) throws IOException {
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return io.grpc.examples.Helloworld.HelloReply.parseFrom(input);
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}
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}));
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public static GreeterStub newStub(io.grpc.Channel channel) {
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return new GreeterStub(channel, CONFIG);
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}
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public static GreeterBlockingStub newBlockingStub(
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io.grpc.Channel channel) {
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return new GreeterBlockingStub(channel, CONFIG);
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}
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public static GreeterFutureStub newFutureStub(
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io.grpc.Channel channel) {
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return new GreeterFutureStub(channel, CONFIG);
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}
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public static final GreeterServiceDescriptor CONFIG =
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new GreeterServiceDescriptor();
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public static class GreeterServiceDescriptor extends
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io.grpc.stub.AbstractServiceDescriptor<GreeterServiceDescriptor> {
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public final io.grpc.MethodDescriptor<io.grpc.examples.Helloworld.HelloRequest,
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io.grpc.examples.Helloworld.HelloReply> sayHello;
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private GreeterServiceDescriptor() {
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sayHello = createMethodDescriptor(
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"helloworld.Greeter", METHOD_SAY_HELLO);
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}
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private GreeterServiceDescriptor(
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java.util.Map<java.lang.String, io.grpc.MethodDescriptor<?, ?>> methodMap) {
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sayHello = (io.grpc.MethodDescriptor<io.grpc.examples.Helloworld.HelloRequest,
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io.grpc.examples.Helloworld.HelloReply>) methodMap.get(
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CONFIG.sayHello.getName());
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}
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@java.lang.Override
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protected GreeterServiceDescriptor build(
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java.util.Map<java.lang.String, io.grpc.MethodDescriptor<?, ?>> methodMap) {
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return new GreeterServiceDescriptor(methodMap);
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}
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@java.lang.Override
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public com.google.common.collect.ImmutableList<io.grpc.MethodDescriptor<?, ?>> methods() {
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return com.google.common.collect.ImmutableList.<io.grpc.MethodDescriptor<?, ?>>of(
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sayHello);
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}
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}
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public static interface Greeter {
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public void sayHello(io.grpc.examples.Helloworld.HelloRequest request,
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io.grpc.stub.StreamObserver<io.grpc.examples.Helloworld.HelloReply> responseObserver);
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}
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public static interface GreeterBlockingClient {
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public io.grpc.examples.Helloworld.HelloReply sayHello(io.grpc.examples.Helloworld.HelloRequest request);
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}
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public static interface GreeterFutureClient {
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public com.google.common.util.concurrent.ListenableFuture<io.grpc.examples.Helloworld.HelloReply> sayHello(
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io.grpc.examples.Helloworld.HelloRequest request);
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}
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public static class GreeterStub extends
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io.grpc.stub.AbstractStub<GreeterStub, GreeterServiceDescriptor>
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implements Greeter {
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private GreeterStub(io.grpc.Channel channel,
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GreeterServiceDescriptor config) {
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super(channel, config);
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}
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@java.lang.Override
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protected GreeterStub build(io.grpc.Channel channel,
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GreeterServiceDescriptor config) {
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return new GreeterStub(channel, config);
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}
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@java.lang.Override
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public void sayHello(io.grpc.examples.Helloworld.HelloRequest request,
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io.grpc.stub.StreamObserver<io.grpc.examples.Helloworld.HelloReply> responseObserver) {
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asyncUnaryCall(
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channel.newCall(config.sayHello), request, responseObserver);
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}
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}
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public static class GreeterBlockingStub extends
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io.grpc.stub.AbstractStub<GreeterBlockingStub, GreeterServiceDescriptor>
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implements GreeterBlockingClient {
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private GreeterBlockingStub(io.grpc.Channel channel,
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GreeterServiceDescriptor config) {
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super(channel, config);
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}
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@java.lang.Override
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protected GreeterBlockingStub build(io.grpc.Channel channel,
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GreeterServiceDescriptor config) {
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return new GreeterBlockingStub(channel, config);
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}
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@java.lang.Override
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public io.grpc.examples.Helloworld.HelloReply sayHello(io.grpc.examples.Helloworld.HelloRequest request) {
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return blockingUnaryCall(
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channel.newCall(config.sayHello), request);
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}
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}
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public static class GreeterFutureStub extends
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io.grpc.stub.AbstractStub<GreeterFutureStub, GreeterServiceDescriptor>
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implements GreeterFutureClient {
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private GreeterFutureStub(io.grpc.Channel channel,
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GreeterServiceDescriptor config) {
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super(channel, config);
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}
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@java.lang.Override
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protected GreeterFutureStub build(io.grpc.Channel channel,
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GreeterServiceDescriptor config) {
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return new GreeterFutureStub(channel, config);
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}
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@java.lang.Override
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public com.google.common.util.concurrent.ListenableFuture<io.grpc.examples.Helloworld.HelloReply> sayHello(
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io.grpc.examples.Helloworld.HelloRequest request) {
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return unaryFutureCall(
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channel.newCall(config.sayHello), request);
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}
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}
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public static io.grpc.ServerServiceDefinition bindService(
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final Greeter serviceImpl) {
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return io.grpc.ServerServiceDefinition.builder("helloworld.Greeter")
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.addMethod(createMethodDefinition(
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METHOD_SAY_HELLO,
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asyncUnaryRequestCall(
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new io.grpc.stub.ServerCalls.UnaryRequestMethod<
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io.grpc.examples.Helloworld.HelloRequest,
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io.grpc.examples.Helloworld.HelloReply>() {
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@java.lang.Override
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public void invoke(
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io.grpc.examples.Helloworld.HelloRequest request,
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io.grpc.stub.StreamObserver<io.grpc.examples.Helloworld.HelloReply> responseObserver) {
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serviceImpl.sayHello(request, responseObserver);
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}
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}))).build();
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}
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}
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@ -0,0 +1,175 @@
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// Generated by the protocol buffer compiler. DO NOT EDIT!
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package io.grpc.examples;
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@SuppressWarnings("hiding")
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public interface Helloworld {
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public static final class HelloRequest extends
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com.google.protobuf.nano.MessageNano {
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private static volatile HelloRequest[] _emptyArray;
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public static HelloRequest[] emptyArray() {
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// Lazily initializes the empty array
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if (_emptyArray == null) {
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synchronized (
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com.google.protobuf.nano.InternalNano.LAZY_INIT_LOCK) {
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if (_emptyArray == null) {
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_emptyArray = new HelloRequest[0];
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}
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}
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}
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return _emptyArray;
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}
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// optional string name = 1;
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public java.lang.String name;
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public HelloRequest() {
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clear();
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}
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public HelloRequest clear() {
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name = "";
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cachedSize = -1;
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return this;
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}
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@Override
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public void writeTo(com.google.protobuf.nano.CodedOutputByteBufferNano output)
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throws java.io.IOException {
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if (!this.name.equals("")) {
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output.writeString(1, this.name);
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}
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super.writeTo(output);
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}
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@Override
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protected int computeSerializedSize() {
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int size = super.computeSerializedSize();
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if (!this.name.equals("")) {
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size += com.google.protobuf.nano.CodedOutputByteBufferNano
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.computeStringSize(1, this.name);
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}
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return size;
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}
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@Override
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public HelloRequest mergeFrom(
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com.google.protobuf.nano.CodedInputByteBufferNano input)
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throws java.io.IOException {
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while (true) {
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int tag = input.readTag();
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switch (tag) {
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case 0:
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return this;
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default: {
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if (!com.google.protobuf.nano.WireFormatNano.parseUnknownField(input, tag)) {
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return this;
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}
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break;
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}
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case 10: {
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this.name = input.readString();
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break;
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}
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}
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}
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}
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public static HelloRequest parseFrom(byte[] data)
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throws com.google.protobuf.nano.InvalidProtocolBufferNanoException {
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return com.google.protobuf.nano.MessageNano.mergeFrom(new HelloRequest(), data);
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}
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public static HelloRequest parseFrom(
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com.google.protobuf.nano.CodedInputByteBufferNano input)
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throws java.io.IOException {
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return new HelloRequest().mergeFrom(input);
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}
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}
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public static final class HelloReply extends
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com.google.protobuf.nano.MessageNano {
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private static volatile HelloReply[] _emptyArray;
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public static HelloReply[] emptyArray() {
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// Lazily initializes the empty array
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if (_emptyArray == null) {
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synchronized (
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com.google.protobuf.nano.InternalNano.LAZY_INIT_LOCK) {
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if (_emptyArray == null) {
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_emptyArray = new HelloReply[0];
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}
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}
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}
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return _emptyArray;
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}
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// optional string message = 1;
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public java.lang.String message;
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public HelloReply() {
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clear();
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}
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public HelloReply clear() {
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message = "";
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cachedSize = -1;
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return this;
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}
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@Override
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public void writeTo(com.google.protobuf.nano.CodedOutputByteBufferNano output)
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throws java.io.IOException {
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if (!this.message.equals("")) {
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output.writeString(1, this.message);
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}
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super.writeTo(output);
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}
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@Override
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protected int computeSerializedSize() {
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int size = super.computeSerializedSize();
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if (!this.message.equals("")) {
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size += com.google.protobuf.nano.CodedOutputByteBufferNano
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.computeStringSize(1, this.message);
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}
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return size;
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}
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@Override
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public HelloReply mergeFrom(
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com.google.protobuf.nano.CodedInputByteBufferNano input)
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throws java.io.IOException {
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while (true) {
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int tag = input.readTag();
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switch (tag) {
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case 0:
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return this;
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default: {
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if (!com.google.protobuf.nano.WireFormatNano.parseUnknownField(input, tag)) {
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return this;
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}
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break;
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}
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case 10: {
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this.message = input.readString();
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break;
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}
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}
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}
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}
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public static HelloReply parseFrom(byte[] data)
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throws com.google.protobuf.nano.InvalidProtocolBufferNanoException {
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return com.google.protobuf.nano.MessageNano.mergeFrom(new HelloReply(), data);
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}
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public static HelloReply parseFrom(
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com.google.protobuf.nano.CodedInputByteBufferNano input)
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throws java.io.IOException {
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return new HelloReply().mergeFrom(input);
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}
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}
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}
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@ -0,0 +1,93 @@
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package io.grpc.helloworldexample;
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import android.content.Context;
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import android.support.v7.app.ActionBarActivity;
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import android.os.Bundle;
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import android.os.AsyncTask;
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import android.text.TextUtils;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.inputmethod.InputMethodManager;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.TextView;
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import io.grpc.ChannelImpl;
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import ex.grpc.GreeterGrpc;
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import ex.grpc.Helloworld.HelloRequest;
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import ex.grpc.Helloworld.HelloReply;
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import io.grpc.transport.okhttp.OkHttpChannelBuilder;
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import java.util.concurrent.TimeUnit;
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public class Helloworld extends ActionBarActivity {
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private Button mSendButton;
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private EditText mHostEdit;
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private EditText mPortEdit;
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private EditText mMessageEdit;
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private TextView mResultText;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_helloworld);
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mSendButton = (Button) findViewById(R.id.send_button);
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mHostEdit = (EditText) findViewById(R.id.host_edit_text);
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mPortEdit = (EditText) findViewById(R.id.port_edit_text);
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mMessageEdit = (EditText) findViewById(R.id.message_edit_text);
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mResultText = (TextView) findViewById(R.id.grpc_response_text);
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}
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public void sendMessage(View view) {
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((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE))
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.hideSoftInputFromWindow(mHostEdit.getWindowToken(), 0);
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mSendButton.setEnabled(false);
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new GrpcTask().execute();
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}
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private class GrpcTask extends AsyncTask<Void, Void, String> {
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private String mHost;
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private String mMessage;
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private int mPort;
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private ChannelImpl mChannel;
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@Override
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protected void onPreExecute() {
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mHost = mHostEdit.getText().toString();
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mMessage = mMessageEdit.getText().toString();
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String portStr = mPortEdit.getText().toString();
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mPort = TextUtils.isEmpty(portStr) ? 0 : Integer.valueOf(portStr);
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mResultText.setText("");
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}
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private String sayHello(ChannelImpl channel) {
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GreeterGrpc.GreeterBlockingStub stub = GreeterGrpc.newBlockingStub(channel);
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HelloRequest message = new HelloRequest();
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message.name = mMessage;
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HelloReply reply = stub.sayHello(message);
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return reply.message;
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}
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@Override
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protected String doInBackground(Void... nothing) {
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try {
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mChannel = OkHttpChannelBuilder.forAddress(mHost, mPort).build();
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return sayHello(mChannel);
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} catch (Exception e) {
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return "Failed... : " + e.getMessage();
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}
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}
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@Override
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protected void onPostExecute(String result) {
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try {
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mChannel.shutdown().awaitTerminated(1, TimeUnit.SECONDS);
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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}
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mResultText.setText(result);
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mSendButton.setEnabled(true);
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}
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}
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}
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@ -0,0 +1,71 @@
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gRPC Hello World Tutorial (Android Java)
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========================
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BACKGROUND
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-------------
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For this sample, we've already generated the server and client stubs from [helloworld.proto](https://github.com/grpc/grpc-common/blob/master/protos/helloworld.proto).
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PREREQUISITES
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-------------
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- [Java gRPC](https://github.com/grpc/grpc-java)
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- [Android Tutorial](https://developer.android.com/training/basics/firstapp/index.html) If you're new to Android development
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- We only have Android gRPC client in this example. Please follow examples in other languages to build and run a gRPC server.
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INSTALL
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-------
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1. Clone the gRPC Java git repo
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```sh
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$ git clone https://github.com/grpc/grpc-java
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```
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2. Install gRPC Java, as described in [How to Build](https://github.com/grpc/grpc-java#how-to-build)
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```sh
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$ # from this dir
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$ cd grpc-java
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$ # follow the instructions in 'How to Build'
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```
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|
||||
3. [Create an Android project](https://developer.android.com/training/basics/firstapp/creating-project.html) under your working directory.
|
||||
- Set Application name to "Helloworld Example" and set Company Domain to "grpc.io". Make sure your package name is "io.grpc.helloworldexample"
|
||||
- Choose appropriate minimum SDK
|
||||
- Use Blank Activity
|
||||
- Set Activity Name to HelloworldActivity
|
||||
- Set Layout Name to activity_helloworld
|
||||
|
||||
4. Prepare the app
|
||||
- Clone this git repo
|
||||
```sh
|
||||
$ git clone https://github.com/grpc/grpc-common
|
||||
|
||||
```
|
||||
- Replace the generated HelloworldActivity.java and activity_helloworld.xml with the two files in this repo
|
||||
- Copy GreeterGrpc.java and Helloworld.java under your_app_dir/app/src/main/java/io/grpc/examples/
|
||||
- In your AndroidManifest.xml, make sure you have
|
||||
```sh
|
||||
<uses-permission android:name="android.permission.INTERNET" />
|
||||
```
|
||||
added outside your appplication tag
|
||||
|
||||
5. Add dependencies. gRPC Java on Android depends on grpc-java, protobuf nano, okhttp
|
||||
- Copy grpc-java .jar files to your_app_dir/app/libs/:
|
||||
- grpc-java/core/build/libs/*.jar
|
||||
- grpc-java/stub/build/libs/*.jar
|
||||
- grpc-java/nano/build/libs/*.jar
|
||||
- grpc-java/okhttp/build/libs/*.jar
|
||||
- Copy or download other dependencies to your_app_dir/app/libs/:
|
||||
- [Guava 18](http://search.maven.org/remotecontent?filepath=com/google/guava/guava/18.0/guava-18.0.jar)
|
||||
- [okhttp 2.2.0](http://repo1.maven.org/maven2/com/squareup/okhttp/okhttp/2.2.0/okhttp-2.2.0.jar)
|
||||
- protobuf nano:
|
||||
```sh
|
||||
$ cp ~/.m2/repository/com/google/protobuf/nano/protobuf-javanano/2.6.2-pre/protobuf-javanano-2.6.2-pre.jar your_app_dir/app/libs/
|
||||
```
|
||||
- Make sure your_app_dir/app/build.gradle contains:
|
||||
```sh
|
||||
dependencies {
|
||||
compile fileTree(dir: 'libs', include: ['*.jar'])
|
||||
}
|
||||
```
|
||||
|
||||
6. [Run your example app](https://developer.android.com/training/basics/firstapp/running-app.html)
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
||||
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
|
||||
android:layout_height="match_parent"
|
||||
tools:context=".MainActivity"
|
||||
android:orientation="vertical" >
|
||||
|
||||
<LinearLayout
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:orientation="horizontal">
|
||||
<EditText
|
||||
android:id="@+id/host_edit_text"
|
||||
android:layout_weight="2"
|
||||
android:layout_width="0dp"
|
||||
android:layout_height="wrap_content"
|
||||
android:hint="Enter Host" />
|
||||
<EditText
|
||||
android:id="@+id/port_edit_text"
|
||||
android:layout_weight="1"
|
||||
android:layout_width="0dp"
|
||||
android:layout_height="wrap_content"
|
||||
android:inputType="numberDecimal"
|
||||
android:hint="Enter Port" />
|
||||
</LinearLayout>
|
||||
|
||||
|
||||
<EditText
|
||||
android:id="@+id/message_edit_text"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:hint="Enter message to send" />
|
||||
|
||||
<Button
|
||||
android:id="@+id/send_button"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:onClick="sendMessage"
|
||||
android:text="Send Grpc Request" />
|
||||
|
||||
<TextView
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:paddingTop="12dp"
|
||||
android:paddingBottom="12dp"
|
||||
android:textSize="16dp"
|
||||
android:text="Response:" />
|
||||
|
||||
<TextView
|
||||
android:id="@+id/grpc_response_text"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="match_parent"
|
||||
android:textSize="16dp" />
|
||||
|
||||
</LinearLayout>
|
||||
Loading…
Reference in New Issue