std::shared_ptr<base::IDataArray> BlockFS::createDataArray(const std::string &name, const std::string &type,
nix::DataType data_type, const NDSize &shape) {
if (name.empty()) {
throw EmptyString("Block::createDataArray empty name provided!");
}
if (hasDataArray(name)) {
throw DuplicateName("Block::createDataArray: an entity with the same name already exists!");
}
std::string id = util::createId();
DataArrayFS da(file(), block(), data_array_dir.location(), id, type, name);
da.createData(data_type, shape);
return std::make_shared<DataArrayFS>(da);
}
void BaseTagHDF5::references(const std::vector<DataArray> &refs_new) {
// extract vectors of names from vectors of new & old references
std::vector<std::string> names_new(refs_new.size());
transform(refs_new.begin(), refs_new.end(), names_new.begin(), util::toName<DataArray>);
//FIXME: issue 473
std::vector<DataArray> refs_old(static_cast<size_t>(referenceCount()));
for (size_t i = 0; i < refs_old.size(); i++) refs_old[i] = getReference(i);
std::vector<std::string> names_old(refs_old.size());
transform(refs_old.begin(), refs_old.end(), names_old.begin(), util::toName<DataArray>);
// sort them
std::sort(names_new.begin(), names_new.end());
std::sort(names_new.begin(), names_new.end());
// get names only in names_new (add), names only in names_old (remove) & ignore rest
std::vector<std::string> names_add;
std::vector<std::string> names_rem;
std::set_difference(names_new.begin(), names_new.end(), names_old.begin(), names_old.end(),
std::inserter(names_add, names_add.begin()));
std::set_difference(names_old.begin(), names_old.end(), names_new.begin(), names_new.end(),
std::inserter(names_rem, names_rem.begin()));
// check if all new references exist & add sources
auto blck = dynamic_pointer_cast<BlockHDF5>(block());
for (auto name : names_add) {
if (!blck->hasDataArray(name))
throw std::runtime_error("One or more data arrays do not exist in this block!");
addReference(blck->getDataArray(name)->id());
}
// remove references
for (auto name : names_rem) {
if (!blck->hasDataArray(name))
removeReference(blck->getDataArray(name)->id());
}
}
