size_t fromString(PVUnionArrayPtr const &pv, StringArray const & from, size_t fromStartIndex = 0)
{
int processed = 0;
size_t fromValueCount = from.size();
// first get count
if (fromStartIndex >= fromValueCount)
throw std::runtime_error("not enough of values");
size_t numberOfUnions;
istringstream iss(from[fromStartIndex]);
iss >> numberOfUnions;
// not fail and entire value is parsed (e.g. to detect 1.2 parsing to 1)
if (iss.fail() || !iss.eof())
throw runtime_error("failed to parse element count value (uint) of field '" + pv->getFieldName() + "' from string value '" + from[fromStartIndex] + "'");
fromStartIndex++;
processed++;
PVUnionArray::svector pvUnions;
pvUnions.reserve(numberOfUnions);
PVDataCreatePtr pvDataCreate = getPVDataCreate();
for (size_t i = 0; i < numberOfUnions; ++i)
{
PVUnionPtr pvUnion = pvDataCreate->createPVUnion(pv->getUnionArray()->getUnion());
size_t count = fromString(pvUnion, from, fromStartIndex);
processed += count;
fromStartIndex += count;
pvUnions.push_back(pvUnion);
}
pv->replace(freeze(pvUnions));
return processed;
}
PVFieldPtr PVDataCreate::createPVField(PVFieldPtr const & fieldToClone)
{
switch(fieldToClone->getField()->getType()) {
case scalar:
{
PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(fieldToClone);
return createPVScalar(pvScalar);
}
case scalarArray:
{
PVScalarArrayPtr pvScalarArray
= static_pointer_cast<PVScalarArray>(fieldToClone);
return createPVScalarArray(pvScalarArray);
}
case structure:
{
PVStructurePtr pvStructure
= static_pointer_cast<PVStructure>(fieldToClone);
StringArray const & fieldNames = pvStructure->getStructure()->getFieldNames();
PVFieldPtrArray const & pvFieldPtrArray = pvStructure->getPVFields();
return createPVStructure(fieldNames,pvFieldPtrArray);
}
case structureArray:
{
PVStructureArrayPtr from
= static_pointer_cast<PVStructureArray>(fieldToClone);
StructureArrayConstPtr structureArray = from->getStructureArray();
PVStructureArrayPtr to = createPVStructureArray(
structureArray);
to->copyUnchecked(*from);
return to;
}
case union_:
{
PVUnionPtr pvUnion
= static_pointer_cast<PVUnion>(fieldToClone);
return createPVUnion(pvUnion);
}
case unionArray:
{
PVUnionArrayPtr from
= static_pointer_cast<PVUnionArray>(fieldToClone);
UnionArrayConstPtr unionArray = from->getUnionArray();
PVUnionArrayPtr to = createPVUnionArray(unionArray);
to->copyUnchecked(*from);
return to;
}
}
throw std::logic_error("PVDataCreate::createPVField should never get here");
}