void MappingLevel::attemptMapping(IDefRecordElement const * diskRecord, unsigned diskFieldNum, bool diskFieldKeyed, IDefRecordElement const * activityRecord, unsigned activityFieldNum, bool activityFieldKeyed)
{
IDefRecordElement const * diskField = diskRecord->queryChild(diskFieldNum);
IDefRecordElement const * activityField = activityRecord->queryChild(activityFieldNum);
IDefRecordElement const * diskChild = NULL;
IDefRecordElement const * diskBlob = NULL;
queryCheckFieldChild(diskField, "Disk", diskChild, diskBlob);
IDefRecordElement const * activityChild = NULL;
IDefRecordElement const * activityBlob = NULL;
queryCheckFieldChild(activityField, "Activity", activityChild, activityBlob);
if(diskBlob)
{
if(!activityBlob)
throw makeFailure(IRecordLayoutTranslator::Failure::UntranslatableField)->append("Field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" is blob on disk but not in activity");
if(!isSameBasicType(diskBlob->queryType(), activityBlob->queryType()))
throw makeFailure(IRecordLayoutTranslator::Failure::UntranslatableField)->append("Blob field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" has differing referenced types on disk and in activity");
}
else
{
if(activityBlob)
throw makeFailure(IRecordLayoutTranslator::Failure::UntranslatableField)->append("Field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" is blob in activity but not on disk");
}
if(diskChild)
{
if(!activityChild)
throw makeFailure(IRecordLayoutTranslator::Failure::UntranslatableField)->append("Field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" is child dataset on disk but not in activity");
if(activityFieldKeyed)
throw makeFailure(IRecordLayoutTranslator::Failure::BadStructure)->append("Activity record metadata had unexpected structure (keyed field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" is child dataset)");
if(*activityChild == *diskChild)
{
mappings.append(*new FieldMapping(FieldMapping::Simple, diskRecord, diskFieldNum, false, activityRecord, activityFieldNum, false));
}
else
{
Owned<FieldMapping> mapping(new FieldMapping(FieldMapping::ChildDataset, diskRecord, diskFieldNum, false, activityRecord, activityFieldNum, false));
MappingLevel childMappingLevel(this, diskField->queryName()->str(), mapping->queryChildMappings());
childMappingLevel.calculateMappings(diskChild, 0, activityChild, 0);
mappings.append(*mapping.getClear());
}
}
else
{
if(activityChild)
throw makeFailure(IRecordLayoutTranslator::Failure::UntranslatableField)->append("Field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" is child dataset in activity but not on disk");
if(!isSameBasicType(diskField->queryType(), activityField->queryType()))
throw makeFailure(IRecordLayoutTranslator::Failure::UntranslatableField)->append("Field ")->appendFieldName(topLevel ? NULL : scope.str(), activityRecord->queryChild(activityFieldNum))->append(" has differing types on disk and in activity");
mappings.append(*new FieldMapping(FieldMapping::Simple, diskRecord, diskFieldNum, diskFieldKeyed, activityRecord, activityFieldNum, activityFieldKeyed));
}
}
bool CDefRecordElement::operator==(IDefRecordElement const & other) const
{
if((kind != other.getKind()) || (name != other.queryName()) || (maxSize != other.getMaxSize()) || (queryCompareValue() != other.queryCompareValue()) || (children.ordinality() != other.numChildren()))
return false;
if(type)
{
if((!other.queryType()) || !isSameBasicType(type, other.queryType()))
return false;
}
else
{
if(other.queryType())
return false;
}
ForEachItemIn(idx, children)
if(!(children.item(idx) == *other.queryChild(idx)))
return false;
return true;
}
