coolbeevip commented on a change in pull request #609: WIP [SCB-1627] Omega
side CallbackContext send the compensation result event to Alpha
URL: https://github.com/apache/servicecomb-pack/pull/609#discussion_r352439839
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File path:
alpha/alpha-server/src/main/java/org/apache/servicecomb/pack/alpha/server/fsm/GrpcOmegaCallback.java
##########
@@ -19,32 +19,71 @@
import com.google.protobuf.ByteString;
import io.grpc.stub.StreamObserver;
+import java.lang.invoke.MethodHandles;
import org.apache.servicecomb.pack.alpha.core.OmegaCallback;
import org.apache.servicecomb.pack.alpha.core.TxEvent;
+import
org.apache.servicecomb.pack.alpha.core.exception.CompensateAskFailedException;
+import
org.apache.servicecomb.pack.alpha.core.exception.CompensateConnectException;
+import org.apache.servicecomb.pack.alpha.core.fsm.CompensateAskType;
import org.apache.servicecomb.pack.contract.grpc.GrpcCompensateCommand;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
class GrpcOmegaCallback implements OmegaCallback {
+ private static final Logger LOG =
LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final StreamObserver<GrpcCompensateCommand> observer;
+ private CompensateAskWait compensateAskWait;
GrpcOmegaCallback(StreamObserver<GrpcCompensateCommand> observer) {
this.observer = observer;
}
@Override
public void compensate(TxEvent event) {
- GrpcCompensateCommand command = GrpcCompensateCommand.newBuilder()
- .setGlobalTxId(event.globalTxId())
- .setLocalTxId(event.localTxId())
- .setParentTxId(event.parentTxId() == null ? "" : event.parentTxId())
- .setCompensationMethod(event.compensationMethod())
- .setPayloads(ByteString.copyFrom(event.payloads()))
- .build();
- observer.onNext(command);
+ compensateAskWait = new CompensateAskWait(1);
+ try {
+ GrpcCompensateCommand command = GrpcCompensateCommand.newBuilder()
+ .setGlobalTxId(event.globalTxId())
+ .setLocalTxId(event.localTxId())
+ .setParentTxId(event.parentTxId() == null ? "" : event.parentTxId())
+ .setCompensationMethod(event.compensationMethod())
+ .setPayloads(ByteString.copyFrom(event.payloads()))
+ .build();
+ observer.onNext(command);
+ compensateAskWait.await();
Review comment:
I need to redefine the @Compensable attribute:
Rename retries to forwardRetries
Rename timeout to forwardTimeout
Add attribute reverseRetries
Add attribute reverseTimeout
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