GetPathFixture()
{
file1=nexus::create_file("GetPathFixture1.nxs",hdf5::file::AccessFlags::TRUNCATE);
nexus::xml::create_from_file(file1.root(),"simple_structure.xml");
file2=nexus::create_file("GetPathFixture2.nxs",hdf5::file::AccessFlags::TRUNCATE);
nexus::xml::create_from_file(file2.root(),"detector_with_transformation.xml");
}
//----------------------------------------------------------------------------
nexus::PathObject get_base(const hdf5::file::File &file,
const nexus::Path &path)
{
nexus::PathObjectList objects;
// check if the path references the root group
if(path.size()==1 && !nexus::has_attribute_section(path))
{
return file.root();
}
try
{
nexus::Path file_root;
file_root.filename(path.filename());
file_root.push_back({"/","NXroot"});
nexus::Path search_path = nexus::make_relative(file_root,path);
search_path.attribute(path.attribute());
objects = nexus::get_objects(file.root(),search_path);
}
catch(pni::core::key_error &error)
{
std::cerr<<error<<std::endl;
std::cerr<<"The path entered does not exist!"<<std::endl;
std::exit(1);
}
catch(std::runtime_error &error)
{
std::cerr<<error.what()<<std::endl;
std::exit(1);
}
if(objects.size()!=1)
{
std::stringstream ss;
if(objects.size()>1)
ss<<"The path ["<<path<<"] is not unique - cannot identify base object!";
else if(objects.size()==0)
ss<<"Could not find base with ["<<path<<"]!";
throw std::runtime_error(ss.str());
}
return objects.front();
}