Examples with Status io.grpc.Status used on opensource projects

Example 1 with Status

use of io.grpc.Status in project grpc-java by grpc.

the class AsyncClient method doUnaryCalls.

private Future<Histogram> doUnaryCalls(Channel channel, final SimpleRequest request, final long endTime) {
    final BenchmarkServiceStub stub = BenchmarkServiceGrpc.newStub(channel);
    final Histogram histogram = new Histogram(HISTOGRAM_MAX_VALUE, HISTOGRAM_PRECISION);
    final HistogramFuture future = new HistogramFuture(histogram);
    stub.unaryCall(request, new StreamObserver<SimpleResponse>() {

        long lastCall = System.nanoTime();

        @Override
        public void onNext(SimpleResponse value) {
        }

        @Override
        public void onError(Throwable t) {
            Status status = Status.fromThrowable(t);
            System.err.println("Encountered an error in unaryCall. Status is " + status);
            t.printStackTrace();
            future.cancel(true);
        }

        @Override
        public void onCompleted() {
            long now = System.nanoTime();
            // Record the latencies in microseconds
            histogram.recordValue((now - lastCall) / 1000);
            lastCall = now;
            if (endTime > now) {
                stub.unaryCall(request, this);
            } else {
                future.done();
            }
        }
    });
    return future;
}

Example 2 with Status

use of io.grpc.Status in project grpc-java by grpc.

the class InProcessTransport method start.

@CheckReturnValue
@Override
public synchronized Runnable start(ManagedClientTransport.Listener listener) {
    this.clientTransportListener = listener;
    InProcessServer server = InProcessServer.findServer(name);
    if (server != null) {
        serverTransportListener = server.register(this);
    }
    if (serverTransportListener == null) {
        shutdownStatus = Status.UNAVAILABLE.withDescription("Could not find server: " + name);
        final Status localShutdownStatus = shutdownStatus;
        return new Runnable() {

            @Override
            public void run() {
                synchronized (InProcessTransport.this) {
                    notifyShutdown(localShutdownStatus);
                    notifyTerminated();
                }
            }
        };
    }
    return new Runnable() {

        @Override
        @SuppressWarnings("deprecation")
        public void run() {
            synchronized (InProcessTransport.this) {
                Attributes serverTransportAttrs = Attributes.newBuilder().set(Grpc.TRANSPORT_ATTR_REMOTE_ADDR, new InProcessSocketAddress(name)).build();
                serverStreamAttributes = serverTransportListener.transportReady(serverTransportAttrs);
                clientTransportListener.transportReady();
            }
        }
    };
}

Example 3 with Status

use of io.grpc.Status in project grpc-java by grpc.

the class DelayedStream method start.

@Override
public void start(ClientStreamListener listener) {
    checkState(this.listener == null, "already started");
    Status savedError;
    boolean savedPassThrough;
    synchronized (this) {
        this.listener = checkNotNull(listener, "listener");
        // If error != null, then cancel() has been called and was unable to close the listener
        savedError = error;
        savedPassThrough = passThrough;
        if (!savedPassThrough) {
            listener = delayedListener = new DelayedStreamListener(listener);
        }
    }
    if (savedError != null) {
        listener.closed(savedError, new Metadata());
        return;
    }
    if (savedPassThrough) {
        realStream.start(listener);
    } else {
        final ClientStreamListener finalListener = listener;
        delayOrExecute(new Runnable() {

            @Override
            public void run() {
                realStream.start(finalListener);
            }
        });
    }
}

Example 4 with Status

use of io.grpc.Status in project grpc-java by grpc.

the class Http2ClientStream method statusFromTrailers.

/**
   * Extract the response status from trailers.
   */
private Status statusFromTrailers(Metadata trailers) {
    Status status = trailers.get(Status.CODE_KEY);
    if (status != null) {
        return status.withDescription(trailers.get(Status.MESSAGE_KEY));
    }
    // No status; something is broken. Try to provide a resonanable error.
    if (headersReceived) {
        return Status.UNKNOWN.withDescription("missing GRPC status in response");
    }
    Integer httpStatus = trailers.get(HTTP2_STATUS);
    if (httpStatus != null) {
        status = GrpcUtil.httpStatusToGrpcStatus(httpStatus);
    } else {
        status = Status.INTERNAL.withDescription("missing HTTP status code");
    }
    return status.augmentDescription("missing GRPC status, inferred error from HTTP status code");
}

Example 5 with Status

use of io.grpc.Status in project grpc-java by grpc.

the class Http2ClientStream method transportTrailersReceived.

/**
   * Called by subclasses for the terminal trailer metadata on a stream.
   *
   * @param trailers the received terminal trailer metadata
   */
protected void transportTrailersReceived(Metadata trailers) {
    Preconditions.checkNotNull(trailers, "trailers");
    if (transportError == null && !headersReceived) {
        transportError = validateInitialMetadata(trailers);
        if (transportError != null) {
            transportErrorMetadata = trailers;
        }
    }
    if (transportError != null) {
        transportError = transportError.augmentDescription("trailers: " + trailers);
        inboundTransportError(transportError, transportErrorMetadata);
        sendCancel(Status.CANCELLED);
    } else {
        Status status = statusFromTrailers(trailers);
        stripTransportDetails(trailers);
        inboundTrailersReceived(trailers, status);
    }
}