Examples of com.google.protobuf.Service

com.google.protobuf.Service
Abstract base interface for protocol-buffer-based RPC services. Services themselves are abstract classes (implemented either by servers or as stubs), but they subclass this base interface. The methods of this interface can be used to call the methods of the service without knowing its exact type at compile time (analogous to the Message interface).
Starting with version 2.3.0, RPC implementations should not try to build on this, but should instead provide code generator plugins which generate code specific to the particular RPC implementation. This way the generated code can be more appropriate for the implementation in use and can avoid unnecessary layers of indirection. @author kenton@google.com Kenton Varda

      throw new UnknownProtocolException(null,
          "No registered coprocessor service found for name "+serviceName+
          " in region "+Bytes.toStringBinary(getRegionName()));
    }


    Service service = coprocessorServiceHandlers.get(serviceName);
    Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
    Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
    if (methodDesc == null) {
      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
      public void run(Message message) {
        if (message != null) {
          responseBuilder.mergeFrom(message);
        }

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      if (!coprocessorServiceHandlers.containsKey(serviceName)) {
        throw new UnknownProtocolException(null,
            "No registered master coprocessor service found for name "+serviceName);
      }


      Service service = coprocessorServiceHandlers.get(serviceName);
      Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
      Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
      if (methodDesc == null) {
        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);
          }

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      if (!coprocessorServiceHandlers.containsKey(serviceName)) {
        throw new UnknownProtocolException(null,
            "No registered master coprocessor service found for name "+serviceName);
      }


      Service service = coprocessorServiceHandlers.get(serviceName);
      Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
      Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
      if (methodDesc == null) {
        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);
          }

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      throw new UnknownProtocolException(null,
          "No registered coprocessor service found for name "+serviceName+
          " in region "+Bytes.toStringBinary(getRegionName()));
    }


    Service service = coprocessorServiceHandlers.get(serviceName);
    Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
    Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
    if (methodDesc == null) {
      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();


    if (coprocessorHost != null) {
      request = coprocessorHost.preEndpointInvocation(service, methodName, request);
    }


    final Message.Builder responseBuilder =
        service.getResponsePrototype(methodDesc).newBuilderForType();
    service.callMethod(methodDesc, controller, request, new RpcCallback<Message>() {
      @Override
      public void run(Message message) {
        if (message != null) {
          responseBuilder.mergeFrom(message);
        }

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            }
        }
    }


    private void doRequest(RpcMessage message) {
        Service service = services.get(message.getService());
        Builder errorBuilder = RpcMessage.newBuilder().setType(MessageType.ERROR);
        boolean succeed = false;
        if (service != null) {
            MethodDescriptor method = service.getDescriptorForType()
                    .findMethodByName(message.getMethod());
            if (method != null) {
                Message request = fromByteString(service.getRequestPrototype(method),
                        message.getRequest());
                if (request != null) {
                    final long id = message.getId();
                    RpcCallback<Message> done = new RpcCallback<Message>() {
                        @Override

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      throw new UnknownProtocolException(null,
          "No registered coprocessor service found for name "+serviceName+
          " in region "+Bytes.toStringBinary(getRegionName()));
    }


    Service service = coprocessorServiceHandlers.get(serviceName);
    Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
    Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
    if (methodDesc == null) {
      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
      public void run(Message message) {
        if (message != null) {
          responseBuilder.mergeFrom(message);
        }

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    if (blockingService != null) {
      return forwardToBlockingService(rpcRequest, blockingService);
    }


    // Now try Service
    Service service = serviceMap.get(rpcRequest.getServiceName());
    if (service == null) {
      throw new RpcException(ErrorReason.SERVICE_NOT_FOUND,
          "Could not find service: " + rpcRequest.getServiceName(), null);
    }

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      rpcCallback.run(response);
      return;
    }


    // Now try Service
    Service service = serviceMap.get(rpcRequest.getServiceName());
    if (service == null) {
      throw new RpcException(ErrorReason.SERVICE_NOT_FOUND,
          "Could not find service: " + rpcRequest.getServiceName(), null);
    }

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      if (!coprocessorServiceHandlers.containsKey(serviceName)) {
        throw new UnknownProtocolException(null,
            "No registered master coprocessor service found for name "+serviceName);
      }


      Service service = coprocessorServiceHandlers.get(serviceName);
      Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
      Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
      if (methodDesc == null) {
        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);
          }

View Full Code Here

      throw new UnknownProtocolException(null,
          "No registered coprocessor service found for name "+serviceName+
          " in region "+Bytes.toStringBinary(getRegionName()));
    }


    Service service = coprocessorServiceHandlers.get(serviceName);
    Descriptors.ServiceDescriptor serviceDesc = service.getDescriptorForType();
    Descriptors.MethodDescriptor methodDesc = serviceDesc.findMethodByName(methodName);
    if (methodDesc == null) {
      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
      public void run(Message message) {
        if (message != null) {
          responseBuilder.mergeFrom(message);
        }

View Full Code Here

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