使用 MapStruct 映射枚举字段

Question

我想映射 2 个模型，其中每个模型都有几乎相同的枚举。让我展示一下：

第一个模型有枚举：

public enum EventSource {
  BETRADAR("SOURCE_BETRADAR"),
  BETGENIUS("SOURCE_BETGENIUS"),
  BETCONSTRUCT("SOURCE_BETCONSTRUCT"),
  MODEL("SOURCE_MODEL");

第二个模型有枚举：

public enum SportEventSource implements ProtocolMessageEnum {
  SOURCE_UNKNOWN(0),
  SOURCE_BETRADAR(1),
  SOURCE_BETGENIUS(2),
  SOURCE_BETCONSTRUCT(3),
  UNRECOGNIZED(-1);

我有这样的自定义映射方法：

@Named("eventSourceConverter")   
default EventSource eventSourceConverter(SportEventSource source) {
        switch (source) {
          case SOURCE_MODEL:
            return EventSource.MODEL;
          case SOURCE_BETCONSTRUCT:
            return EventSource.BETCONSTRUCT;
          case SOURCE_BETGENIUS:
            return EventSource.BETGENIUS;
          case SOURCE_BETRADAR:
            return EventSource.BETRADAR;
          default:
            return EventSource.MODEL;
        }   
}

然后我使用：

  @Mapping(target = "mainSource", source = "source", qualifiedByName = "eventSourceConverter")
  AdapterCompetitor protoToModel(Competitor proto);

但是得到：

error: The following constants from the property "SportEventSource source" enum have no corresponding constant in the "*source*" enum and must be mapped via adding additional mappings: SOURCE_UNKNOWN, SOURCE_BETRADAR, SOURCE_BETGENIUS, SOURCE_BETCONSTRUCT, UNRECOGNIZED.
  AdapterCompetitor protoToModel(Competitor proto);

我还创建了枚举映射器，例如：

  @ValueMappings({
      @ValueMapping(source = "SOURCE_BETRADAR", target = "BETRADAR"),
      @ValueMapping(source = "SOURCE_BETGENIUS", target = "BETGENIUS"),
      @ValueMapping(source = "SOURCE_BETCONSTRUCT", target = "BETCONSTRUCT"),
      @ValueMapping(source = "SOURCE_MODEL", target = "MODEL"),
      @ValueMapping(source = "SOURCE_UNKNOWN", target = "MODEL"),
      @ValueMapping(source = "UNRECOGNIZED", target = "MODEL")
  })
  EventSource eventSourceToSportEventSource(SportEventSource source);

但我不需要单独拥有它，只希望在内部映射中映射枚举字段。简单地说——当我做 AdapterCompetitor protoToModel(Competitor proto) enum 时也应该被映射。

谢谢！

p.s。对不起我的工程师，希望我的问题有意义:)

Answer 1

我用过

@Mapper(componentModel = "spring")
public interface ConverterMapper {
  @Named("UnitValueConverter")
  default Long unitValueConverter(UInt64Value value) {
    return value.getValue();
  }

作为一个包含所有命名映射器的接口，然后我做

@Mapper(componentModel = "spring")
public interface EventMapper extends ConverterMapper

问题是我没有在 ConverterMapper 接口中添加 @Mapper 注解

Answer 2

这可以使用 @ValueMapping

来实现

使用 MapStruct 映射枚举字段

Map Enum field with MapStruct

java

enums

spring-boot

mapstruct