/**
* This method will check that replacing the current DE with a mapping to existing DE will not
* conflict with any other DE.
*
* @param oldDe currentMapping
* @param newDe new Mapping
* @return null if there is no conflict. The conflicting DE if there is a conflict.
*/
public static DataElement checkConflict(DataElement oldDe, DataElement newDe) {
ObjectClass oc = oldDe.getDataElementConcept().getObjectClass();
if (oc.getPublicId() != null) {
// Verify conflicts
if (!newDe.getDataElementConcept().getObjectClass().getPublicId().equals(oc.getPublicId())
|| !newDe.getDataElementConcept().getObjectClass().getVersion().equals(oc.getVersion())) {
// Oc was already mapped by an existing DE. This DE conflicts with the previous mapping.
// Now we need to find out what DE set the oc_id previously
// return newDe;
List<DataElement> des =
ElementsLists.getInstance().getElements(DomainObjectFactory.newDataElement());
for (DataElement de : des) {
if (de.getDataElementConcept().getObjectClass()
!= oldDe.getDataElementConcept().getObjectClass()) continue;
if (StringUtil.isEmpty(de.getPublicId()) || de.getVersion() == null) continue;
String ocId = de.getDataElementConcept().getObjectClass().getPublicId();
if (oldDe != de
&& ocId != null
&& !ocId.equals(newDe.getDataElementConcept().getObjectClass().getPublicId())) {
return de;
}
}
// we shouldn't be here
return null;
}
}
return null;
}
