task #8414

Updated by Andreas Kohlbecker 10 months ago

eu.etaxonomy.cdm.remote.controller.OccurrenceController.doGetOccurencesDTO(@PathVariable(value="uuid") UUID uuid, HttpServletRequest request, HttpServletResponse response) throws IOException

* rename to *FieldUnitDTO as it returns `FieldUnitDTO`s

* `FieldUnitDTOOccurrenceServiceImpl.findFieldUnitDTO(DerivateDTO derivedUnitDTO, Collection<FieldUnitDTO> fieldUnits, HashMap<UUID, DerivateDTO> alreadyCollectedSpecimen)` misses documentation regarding the optional params which are not being used in most cases (fieldUnits, alreadyCollectedSpecimen)
* I think this method should be transactional (readonly)
* My first impression is that this method should be split in two methods, one method to get the FieldUnitDTO for a given DerivedUnit (instead of PreservedSpecimenDTO) and another method which does the more fancy stuff.
* The method only adds the derived unit which is passed as parameter, what about all other derived units? These seem to be missing! This **needs to be FIXED**

* FieldUnitDTO:
* has the field `taxonRelatedDerivedUnits`. What is the purpose of this field? Is this field meant to hold derived units associated to taxa via `IndividualsAssociation`s?
* why is `FieldUnitDTO` providing a `newInstance` method? As far as I know the only reason for doing so is a situation in which the newInstanceMethod returns difference types, which the new operator can not do. The actual implementation of the newInstance method differs from the constructor:


* @param fieldUnit
public FieldUnitDTO(FieldUnit fieldUnit) {

public static FieldUnitDTO newInstance(FieldUnit fieldUnit){
FieldUnitDTO fieldUnitDto = new FieldUnitDTO(fieldUnit);
if (fieldUnit.getGatheringEvent() != null){
fieldUnitDto.gatheringEvent = GatheringEventDTO.newInstance(fieldUnit.getGatheringEvent());

return fieldUnitDto;


is this by purpose? To me this looks like an error....

`OccurrenceServiceImpl.assembleFieldUnitDTO(..)` is using the constructor and adds the gathering event to the dto which is done in the newInstance method. --> **TODO**: needs review and harmonization** (I think the newInstance Method should be removed completely as it causes confusion)


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