Implement params convert after MapStruct mapping

Question

I want to use MapStruct framework and to extend the Java Class that I map. Currently I use this:

// @Mapper(config = BaseMapperConfig.class)
public interface MerchantsMapper {

    MerchantNewDTO toNewDTO(Merchants merchant);
}

Custom implementation:

public MerchantNewDTO toNewDTO(Merchants merchant)
  {
    MerchantNewDTO merchantNewDTO = new MerchantNewDTO();

    merchantNewDTO.setId(Integer.valueOf(merchant.getId()));
    ......

    MerchantConfigurationUtils merchant_config = new MerchantConfigurationUtils();
    Map<MerchantConfigurationFeatureBitString, Boolean> features = merchant_config.initFromDatabaseValue(merchant.getSupported_features());

    merchantNewDTO.setSupports_api(features.get(MerchantConfigurationFeatureBitString.Supports_api));

    return merchantNewDTO;
  }

As you can see I want to get getSupported_features and to populate the Supports_api value.

But it's very painful process to add new values. Is there some way to create adapter which extends the mapped interface and set/get the values?

Can you recommend some solution?

can you show us the classes please?

Youcef LAIDANI
– Youcef LAIDANI

2019-08-09 17:06:46 +00:00
Commented Aug 9, 2019 at 17:06 — Youcef LAIDANI
– Youcef LAIDANI, Commented Aug 9, 2019 at 17:06
MerchantNewDTO and Merchants?

Peter Penzov
– Peter Penzov

2019-08-09 19:00:54 +00:00
Commented Aug 9, 2019 at 19:00 — Peter Penzov
– Peter Penzov, Commented Aug 9, 2019 at 19:00

Filip · Accepted Answer · 2019-08-11 06:34:31Z

1

You could do this with @AfterMapping or @BeforeMapping.

@Mapper
public interface MerchantsMapper {

    @Mapping(target = "supports_api", ignore = "true")
    MerchantNewDTO toNewDTO(Merchant merchant);

    @AfterMapping
    default applyFeatures(@MappingTarget MerchatNewDTO merchantNewDTO, Merchant merchant) {

        MerchantConfigurationUtils merchant_config = new MerchantConfigurationUtils();
        Map<MerchantConfigurationFeatureBitString, Boolean> features = merchant_config.initFromDatabaseValue(merchant.getSupported_features());

        merchatNewDTO.setSupports_api(features.get(MerchantConfigurationFeatureBitString.Supports_api));
    }
}

answered Aug 11, 2019 at 6:34

Filip

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