Examples of com.google.protobuf.Message

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

      if (t != null) this.isError = true;
      BufferChain bc = 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();


        // Organize the response as a set of bytebuffers rather than collect it all together inside
        // one big byte array; save on allocations.
        ByteBuffer bbHeader = IPCUtil.getDelimitedMessageAsByteBuffer(header);
        ByteBuffer bbResult = IPCUtil.getDelimitedMessageAsByteBuffer(result);

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    Integer priorityByAnnotation = annotatedQos.get(methodName);
    if (priorityByAnnotation != null) {
      return priorityByAnnotation;
    }


    Message param = headerAndParam.getSecond();
    if (param == null) {
      return HConstants.NORMAL_QOS;
    }
    if (methodName.equalsIgnoreCase("multi") && param instanceof MultiRequest) {
      // The multi call has its priority set in the header.  All calls should work this way but
      // only this one has been converted so far.  No priority == NORMAL_QOS.
      return header.hasPriority()? header.getPriority(): HConstants.NORMAL_QOS;
    }
    String cls = param.getClass().getName();
    Class<? extends Message> rpcArgClass = argumentToClassMap.get(cls);
    RegionSpecifier regionSpecifier = null;
    //check whether the request has reference to meta region or now.
    try {
      // Check if the param has a region specifier; the pb methods are hasRegion and getRegion if

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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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            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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    }
  }


  @Override
  protected Object getField(Object record, String name, int pos, Object state) {
    Message m = (Message)record;
    FieldDescriptor f = ((FieldDescriptor[])state)[pos];
    switch (f.getType()) {
    case ENUM:
      Schema s = getSchema(f);
      try {
        Class c = Class.forName(SpecificData.getClassName(s));
        EnumValueDescriptor symbol = (EnumValueDescriptor)m.getField(f);
        return Enum.valueOf(c, symbol.getName());
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
    case MESSAGE:
      if (!m.hasField(f))
        return null;
    default:
      return m.getField(f);
    }
  }

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     * (non-Javadoc)
     * @see org.apache.camel.spi.DataFormat#unmarshal(org.apache.camel.Exchange,
     * java.io.InputStream)
     */
    public Object unmarshal(Exchange exchange, InputStream inputStream) throws Exception {
        Message instance = getInstance(exchange);
        Builder builder = instance.newBuilderForType().mergeFrom(inputStream);
        if (!builder.isInitialized()) {
            // TODO which exception should be thrown here?
            throw new InvalidPayloadException(exchange, instance.getClass());
        }


        return builder.build();
    }

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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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          "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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          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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    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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