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add judgement for SimpleForwardingServerCall in method ServerStreamHelper.getServerStream #1044

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merged 2 commits into from
Nov 27, 2023
Merged

add judgement for SimpleForwardingServerCall in method ServerStreamHelper.getServerStream #1044

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add judgement for SimpleForwardingServerCall in method ServerStreamHe…
AlchemyDing Nov 25, 2023
e1449a4
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AlchemyDing Nov 27, 2023
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25 changes: 17 additions & 8 deletions jraft-extension/rpc-grpc-impl/src/main/java/io/grpc/internal/ServerStreamHelper.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,10 +16,10 @@
*/
package io.grpc.internal;

import io.grpc.ServerCall;

import com.alipay.sofa.jraft.util.internal.ReferenceFieldUpdater;
import com.alipay.sofa.jraft.util.internal.Updaters;
import io.grpc.ForwardingServerCall;
import io.grpc.ServerCall;

/**
* Get grpc's server stream.
Expand All @@ -28,14 +28,23 @@
*/
public class ServerStreamHelper {

private static final ReferenceFieldUpdater<ServerCallImpl<?, ?>, ServerStream> STREAM_GETTER = Updaters
.newReferenceFieldUpdater(
ServerCallImpl.class,
"stream");
private static final ReferenceFieldUpdater<ServerCallImpl<?, ?>, ServerStream> STREAM_GETTER = Updaters
.newReferenceFieldUpdater(
ServerCallImpl.class,
"stream");

private static final ReferenceFieldUpdater<ForwardingServerCall.SimpleForwardingServerCall<?, ?>, ServerCall<?, ?>> SERVER_CALL_GETTER = Updaters
.newReferenceFieldUpdater(
ForwardingServerCall.SimpleForwardingServerCall.class,
"delegate");

public static ServerStream getServerStream(final ServerCall<?, ?> call) {
if (call instanceof ServerCallImpl) {
return STREAM_GETTER.get((ServerCallImpl<?, ?>) call);
ServerCall<?, ?> lastServerCall = call;
if (call instanceof ForwardingServerCall.SimpleForwardingServerCall) {
lastServerCall = SERVER_CALL_GETTER.get((ForwardingServerCall.SimpleForwardingServerCall<?, ?>) call);
}
if (lastServerCall instanceof ServerCallImpl) {
return STREAM_GETTER.get((ServerCallImpl<?, ?>) lastServerCall);
}
return null;
}
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