Examples of com.google.protobuf.Message

com.google.protobuf.Message
Abstract interface implemented by Protocol Message objects. @author kenton@google.com Kenton Varda


    @Override
    public void messageReceived(IoSession session, Object message) throws Exception {


  if (message instanceof Message) {
      Message msg = (Message) message;


      if (msg instanceof Close) {
    session.close(true);
    return;
      }

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      throw new UnknownProtocolException(service.getClass(),
          "Unknown method "+methodName+" called on service "+serviceName+
              " in region "+Bytes.toStringBinary(getRegionName()));
    }


    Message request = service.getRequestPrototype(methodDesc).newBuilderForType()
        .mergeFrom(call.getRequest()).build();
    final Message.Builder responseBuilder =
        service.getResponsePrototype(methodDesc).newBuilderForType();
    service.callMethod(methodDesc, controller, request, new RpcCallback<Message>() {
      @Override

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      status.setRPCPacket(param);
      status.resume("Servicing call");
      //get an instance of the method arg type
      long startTime = System.currentTimeMillis();
      PayloadCarryingRpcController controller = new PayloadCarryingRpcController(cellScanner);
      Message result = service.callBlockingMethod(md, controller, param);
      int processingTime = (int) (System.currentTimeMillis() - startTime);
      int qTime = (int) (startTime - receiveTime);
      if (LOG.isTraceEnabled()) {
        LOG.trace(CurCall.get().toString() +
            ", response " + TextFormat.shortDebugString(result) +
            " queueTime: " + qTime +
            " processingTime: " + processingTime);
      }
      metrics.dequeuedCall(qTime);
      metrics.processedCall(processingTime);
      long responseSize = result.getSerializedSize();
      // log any RPC responses that are slower than the configured warn
      // response time or larger than configured warning size
      boolean tooSlow = (processingTime > warnResponseTime && warnResponseTime > -1);
      boolean tooLarge = (responseSize > warnResponseSize && warnResponseSize > -1);
      if (tooSlow || tooLarge) {

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    try {
      requestCount.increment();
      HRegion region = getRegion(request.getRegion());
      // ignore the passed in controller (from the serialized call)
      ServerRpcController execController = new ServerRpcController();
      Message result = region.execService(execController, request.getCall());
      if (execController.getFailedOn() != null) {
        throw execController.getFailedOn();
      }
      CoprocessorServiceResponse.Builder builder =
          CoprocessorServiceResponse.newBuilder();
      builder.setRegion(RequestConverter.buildRegionSpecifier(
          RegionSpecifierType.REGION_NAME, region.getRegionName()));
      builder.setValue(
          builder.getValueBuilder().setName(result.getClass().getName())
              .setValue(result.toByteString()));
      return builder.build();
    } catch (IOException ie) {
      throw new ServiceException(ie);
    }
  }

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      if (t != null) this.isError = true;
      ByteBufferOutputStream bbos = null;
      try {
        ResponseHeader.Builder headerBuilder = ResponseHeader.newBuilder();
        // Presume it a pb Message.  Could be null.
        Message result = (Message)m;
        // Call id.
        headerBuilder.setCallId(this.id);
        if (t != null) {
          ExceptionResponse.Builder exceptionBuilder = ExceptionResponse.newBuilder();
          exceptionBuilder.setExceptionClassName(t.getClass().getName());
          exceptionBuilder.setStackTrace(errorMsg);
          exceptionBuilder.setDoNotRetry(t instanceof DoNotRetryIOException);
          if (t instanceof RegionMovedException) {
            // Special casing for this exception.  This is only one carrying a payload.
            // Do this instead of build a generic system for allowing exceptions carry
            // any kind of payload.
            RegionMovedException rme = (RegionMovedException)t;
            exceptionBuilder.setHostname(rme.getHostname());
            exceptionBuilder.setPort(rme.getPort());
          }
          // Set the exception as the result of the method invocation.
          headerBuilder.setException(exceptionBuilder.build());
        }
        ByteBuffer cellBlock =
          ipcUtil.buildCellBlock(this.connection.codec, this.connection.compressionCodec, cells);
        if (cellBlock != null) {
          CellBlockMeta.Builder cellBlockBuilder = CellBlockMeta.newBuilder();
          // Presumes the cellBlock bytebuffer has been flipped so limit has total size in it.
          cellBlockBuilder.setLength(cellBlock.limit());
          headerBuilder.setCellBlockMeta(cellBlockBuilder.build());
        }
        Message header = headerBuilder.build();
        bbos = IPCUtil.write(header, result, cellBlock);
        if (connection.useWrap) {
          wrapWithSasl(bbos);
        }
      } catch (IOException e) {

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          "Call queue is full, is ipc.server.max.callqueue.size too small?");
        responder.doRespond(callTooBig);
        return;
      }
      MethodDescriptor md = null;
      Message param = null;
      CellScanner cellScanner = null;
      try {
        if (header.hasRequestParam() && header.getRequestParam()) {
          md = this.service.getDescriptorForType().findMethodByName(header.getMethodName());
          Builder builder = this.service.getRequestPrototype(md).newBuilderForType();

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            markClosed(re);
          } else {
            if (call != null) call.setException(re);
          }
        } else {
          Message value = null;
          // Call may be null because it may have timedout and been cleaned up on this side already
          if (call != null && call.responseDefaultType != null) {
            Builder builder = call.responseDefaultType.newBuilderForType();
            builder.mergeDelimitedFrom(in);
            value = builder.build();

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            .setRow(ByteString.copyFrom(HConstants.EMPTY_BYTE_ARRAY))
            .setServiceName(method.getService().getFullName())
            .setMethodName(method.getName())
            .setRequest(request.toByteString()).build();
    CoprocessorServiceResponse result = ProtobufUtil.execService(connection.getMaster(), call);
    Message response = null;
    if (result.getValue().hasValue()) {
      response = responsePrototype.newBuilderForType()
          .mergeFrom(result.getValue().getValue()).build();
    } else {
      response = responsePrototype.getDefaultInstanceForType();

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          CurCall.set(null);
          callQueueSize.add(call.getSize() * -1);
          // Set the response for undelayed calls and delayed calls with
          // undelayed responses.
          if (!call.isDelayed() || !call.isReturnValueDelayed()) {
            Message param = resultPair != null? resultPair.getFirst(): null;
            CellScanner cells = resultPair != null? resultPair.getSecond(): null;
            call.setResponse(param, cells, errorThrowable, error);
          }
          call.sendResponseIfReady();
          status.markComplete("Sent response");

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        throw new UnknownProtocolException(service.getClass(),
            "Unknown method "+methodName+" called on master service "+serviceName);
      }


      //invoke the method
      Message execRequest = service.getRequestPrototype(methodDesc).newBuilderForType()
          .mergeFrom(call.getRequest()).build();
      final Message.Builder responseBuilder =
          service.getResponsePrototype(methodDesc).newBuilderForType();
      service.callMethod(methodDesc, execController, execRequest, new RpcCallback<Message>() {
        @Override
        public void run(Message message) {
          if (message != null) {
            responseBuilder.mergeFrom(message);
          }
        }
      });
      Message execResult = responseBuilder.build();


      if (execController.getFailedOn() != null) {
        throw execController.getFailedOn();
      }
      ClientProtos.CoprocessorServiceResponse.Builder builder =
          ClientProtos.CoprocessorServiceResponse.newBuilder();
      builder.setRegion(RequestConverter.buildRegionSpecifier(
          RegionSpecifierType.REGION_NAME, HConstants.EMPTY_BYTE_ARRAY));
      builder.setValue(
          builder.getValueBuilder().setName(execResult.getClass().getName())
              .setValue(execResult.toByteString()));
      return builder.build();
    } catch (IOException ie) {
      throw new ServiceException(ie);
    }
  }

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