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43 changes: 43 additions & 0 deletions
43
dubbo-samples-triple/src/test/java/org/apache/dubbo/sample/tri/GrpcPbGreeterImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| package org.apache.dubbo.sample.tri; | ||
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| import io.grpc.stub.StreamObserver; | ||
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| public class GrpcPbGreeterImpl extends PbGreeterGrpc.PbGreeterImplBase { | ||
| private final PbGreeter delegate; | ||
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| public GrpcPbGreeterImpl(PbGreeter delegate) { | ||
| this.delegate = delegate; | ||
| } | ||
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| @Override | ||
| public void greet(GreeterRequest request, StreamObserver<GreeterReply> responseObserver) { | ||
| try { | ||
| final GreeterReply response = delegate.Greet(request); | ||
| responseObserver.onNext(response); | ||
| responseObserver.onCompleted(); | ||
| } catch (Throwable t) { | ||
| responseObserver.onError(t); | ||
| } | ||
| } | ||
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| @Override | ||
| public void greetException(GreeterRequest request, StreamObserver<GreeterReply> responseObserver) { | ||
| try { | ||
| final GreeterReply response = delegate.GreetException(request); | ||
| responseObserver.onNext(response); | ||
| responseObserver.onCompleted(); | ||
| } catch (Throwable t) { | ||
| responseObserver.onError(t); | ||
| } | ||
| } | ||
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| @Override | ||
| public StreamObserver<GreeterRequest> greetStream(StreamObserver<GreeterReply> responseObserver) { | ||
| return new GrpcStreamObserverAdapter<>(delegate.GreetStream(new StreamObserverAdapter<>(responseObserver))); | ||
| } | ||
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| @Override | ||
| public void greetServerStream(GreeterRequest request, StreamObserver<GreeterReply> responseObserver) { | ||
| delegate.GreetServerStream(request, new StreamObserverAdapter<>(responseObserver)); | ||
| } | ||
| } |
40 changes: 40 additions & 0 deletions
40
dubbo-samples-triple/src/test/java/org/apache/dubbo/sample/tri/GrpcProvider.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,40 @@ | ||
| package org.apache.dubbo.sample.tri; | ||
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| import io.grpc.Server; | ||
| import io.grpc.ServerBuilder; | ||
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| import java.io.IOException; | ||
| import java.util.concurrent.TimeUnit; | ||
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| public class GrpcProvider { | ||
| public static void main(String[] args) throws IOException, InterruptedException { | ||
| final Server server = ServerBuilder.forPort(50051) | ||
| .addService(new GrpcPbGreeterImpl(new PbGreeterImpl())) | ||
| .build(); | ||
| server.start(); | ||
| Runtime.getRuntime().addShutdownHook(new Thread() { | ||
| @Override | ||
| public void run() { | ||
| // Start graceful shutdown | ||
| server.shutdown(); | ||
| try { | ||
| // Wait for RPCs to complete processing | ||
| if (!server.awaitTermination(30, TimeUnit.SECONDS)) { | ||
| // That was plenty of time. Let's cancel the remaining RPCs | ||
| server.shutdownNow(); | ||
| // shutdownNow isn't instantaneous, so give a bit of time to clean resources up | ||
| // gracefully. Normally this will be well under a second. | ||
| server.awaitTermination(5, TimeUnit.SECONDS); | ||
| } | ||
| } catch (InterruptedException ex) { | ||
| server.shutdownNow(); | ||
| } | ||
| } | ||
| }); | ||
| // This would normally be tied to the service's dependencies. For example, if HostnameGreeter | ||
| // used a Channel to contact a required service, then when 'channel.getState() == | ||
| // TRANSIENT_FAILURE' we'd want to set NOT_SERVING. But HostnameGreeter has no dependencies, so | ||
| // hard-coding SERVING is appropriate. | ||
| server.awaitTermination(); | ||
| } | ||
| } |
27 changes: 27 additions & 0 deletions
27
...o-samples-triple/src/test/java/org/apache/dubbo/sample/tri/GrpcStreamObserverAdapter.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,27 @@ | ||
| package org.apache.dubbo.sample.tri; | ||
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| import io.grpc.stub.StreamObserver; | ||
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| public class GrpcStreamObserverAdapter<T> implements StreamObserver<T> { | ||
| private final org.apache.dubbo.common.stream.StreamObserver<T> delegate; | ||
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| public GrpcStreamObserverAdapter(org.apache.dubbo.common.stream.StreamObserver<T> delegate) { | ||
| this.delegate = delegate; | ||
| } | ||
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| @Override | ||
| public void onNext(T data) { | ||
| delegate.onNext(data); | ||
| } | ||
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| @Override | ||
| public void onError(Throwable throwable) { | ||
| delegate.onError(throwable); | ||
| } | ||
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| @Override | ||
| public void onCompleted() { | ||
| delegate.onCompleted(); | ||
| } | ||
| } |
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26 changes: 26 additions & 0 deletions
26
dubbo-samples-triple/src/test/java/org/apache/dubbo/sample/tri/StreamObserverAdapter.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,26 @@ | ||
| package org.apache.dubbo.sample.tri; | ||
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| import org.apache.dubbo.common.stream.StreamObserver; | ||
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| public class StreamObserverAdapter<T> implements StreamObserver<T> { | ||
| private final io.grpc.stub.StreamObserver<T> delegate; | ||
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| public StreamObserverAdapter(io.grpc.stub.StreamObserver<T> delegate) { | ||
| this.delegate = delegate; | ||
| } | ||
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| @Override | ||
| public void onNext(T data) { | ||
| delegate.onNext(data); | ||
| } | ||
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| @Override | ||
| public void onError(Throwable throwable) { | ||
| delegate.onError(throwable); | ||
| } | ||
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| @Override | ||
| public void onCompleted() { | ||
| delegate.onCompleted(); | ||
| } | ||
| } |
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