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Question: Protobuf Support

See original GitHub issue

Is there any official support for protobuf endpoints ?

Using the latest version, 2.9.0 it enters in an infinite loop mapping internal protobuf things…

2018-06-06 10:02:45.099 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Adding type Lcom/google/protobuf/UnknownFieldSet; for parameter defaultInstanceForType
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Recursively resolving dependencies for type Lcom/google/protobuf/UnknownFieldSet;
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Adding type Lcom/google/protobuf/UnknownFieldSet$Parser; for parameter parserForType
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Recursively resolving dependencies for type Lcom/google/protobuf/UnknownFieldSet$Parser;
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Adding type Lcom/google/protobuf/DescriptorProtos$OneofOptionsOrBuilder; for parameter optionsOrBuilder
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Recursively resolving dependencies for type Lcom/google/protobuf/DescriptorProtos$OneofOptionsOrBuilder;
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Adding type Ljava/util/Map<Lcom/google/protobuf/Descriptors$FieldDescriptor;Ljava/lang/Object;>; for parameter allFields
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Recursively resolving dependencies for value type Ljava/lang/Object;
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Marking base type Ljava/lang/Object; as seen
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Adding type Lcom/google/protobuf/Message; for parameter defaultInstanceForType
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Recursively resolving dependencies for type Lcom/google/protobuf/Message;
2018-06-06 10:02:45.100 DEBUG 7010 --- [           main] s.d.s.DefaultModelDependencyProvider     : Adding type Ljava/util/Map<Lcom/google/protobuf/Descriptors$FieldDescriptor;Ljava/lang/Object;>; for parameter allFields

On the other hand, registering the ProtobufModule provided by https://github.com/HubSpot/jackson-datatype-protobuf

@Override
  public void onApplicationEvent(ObjectMapperConfigured objectMapperConfigured) {
    objectMapperConfigured.getObjectMapper().registerModule(new ProtobufModule());
  }

I ended up with with empty generated models …

Issue Analytics

State:
Created 5 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

5reactions

xehonkcommented, Jun 18, 2018

We were able to get make it work (for our current simple api) with a module for jackson: https://github.com/innogames/springfox-protobuf

3reactions

cdmbrcommented, Jun 21, 2018

@xehonk we were able to use your module ! thanks a lot !

I’ve just changed the following method to support better diferent property names (since we use snake_case in your protos, BeanPropertyDefinition was expecting a lowerCamelCase property )

private Map<String, FieldDescriptor> getDescriptorForType(Class<?> type) {
        try {
          Descriptor invoke = (Descriptor) type.getMethod("getDescriptor").invoke(null);
          Map<String, FieldDescriptor> descriptorsForType = new HashMap<>();
          invoke
              .getFields()
              .stream()
              .forEach(
                  fieldDescriptor -> {
                    descriptorsForType.put(fieldDescriptor.getName(), fieldDescriptor);
                    descriptorsForType.put(fieldDescriptor.getJsonName(), fieldDescriptor);
                  });
          return descriptorsForType;
        } catch (Exception e) {
          LOGGER.error("Error getting protobuf descriptor for swagger.", e);
          return new HashMap<>();
        }
      }

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