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Dataset writing logic

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This commit is contained in:
babic_a
2018-01-16 15:55:27 +01:00
parent b694349f09
commit ee0fa5c1af
2 changed files with 89 additions and 10 deletions
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src/h5_utils.cpp
+81 -2
View File
@@ -12,6 +12,83 @@ H5::Group h5_utils::create_group(H5::CommonFG& target, std::string name)
return target.createGroup(name);
}
boost::any h5_utils::get_value_from_reference(string& dataset_name, boost::any value_reference, map<string, boost::any>& values)
{
try {
auto reference_string = boost::any_cast<string>(value_reference);
return values.at(reference_string);
} catch (const boost::bad_any_cast& exception) {
stringstream error_message;
error_message << "Cannot convert dataset " << dataset_name << " value reference to string." << endl;
throw runtime_error(error_message.str());
} catch (const out_of_range& exception){
stringstream error_message;
error_message << "Dataset " << dataset_name << " value reference " << boost::any_cast<string>(value_reference) << " not present in values map." << endl;
throw runtime_error(error_message.str());
}
}
H5::DataSet h5_utils::write_dataset(H5::Group& target, h5_dataset& dataset, map<string, boost::any>& values){
string name = dataset.name;
boost::any value;
// Value is stored directly in the struct.
if (dataset.data_location == IMMEDIATE){
value = dataset.value;
// Value in struct is just a string reference to into the values map.
} else {
value = h5_utils::get_value_from_reference(name, dataset.value, values);
}
if (dataset.data_type == NX_CHAR) {
// Attempt to convert to const char * (string "literals" cause that).
try {
return h5_utils::write_dataset(target, name, string(boost::any_cast<const char*>(value)));
} catch (const boost::bad_any_cast& exception) {}
// Atempt to convert to string.
try {
return h5_utils::write_dataset(target, name, boost::any_cast<string>(value));
} catch (const boost::bad_any_cast& exception) {}
// We cannot really convert this attribute.
stringstream error_message;
error_message << "Cannot convert dataset " << name << " to string or const char*." << endl;
throw runtime_error(error_message.str());
} else if (dataset.data_type == NX_INT) {
try {
return h5_utils::write_dataset(target, name, boost::any_cast<int>(value));
} catch (const boost::bad_any_cast& exception) {}
// We cannot really convert this attribute.
stringstream error_message;
error_message << "Cannot convert dataset " << name << " to INT." << endl;
throw runtime_error(error_message.str());
} else if (dataset.data_type == NX_FLOAT) {
try {
return h5_utils::write_dataset(target, name, boost::any_cast<double>(value));
} catch (const boost::bad_any_cast& exception) {}
// We cannot really convert this attribute.
stringstream error_message;
error_message << "Cannot convert dataset " << name << " to INT." << endl;
throw runtime_error(error_message.str());
} else {
stringstream error_message;
error_message << "Unsupported dataset type for dataset " << name << "." << endl;
throw runtime_error(error_message.str());
}
}
H5::DataSet h5_utils::write_dataset(H5::Group& target, string name, double value)
{
H5::DataSpace att_space(H5S_SCALAR);
@@ -63,15 +140,17 @@ void h5_utils::write_attribute(H5::H5Object& target, string name, int value)
h5_attribute.write(data_type, &value);
}
void h5_utils::write_attribute(H5::H5Object& target, h5_attr& attribute)
void h5_utils::write_attribute(H5::H5Object& target, h5_attr& attribute, map<string, boost::any>& values)
{
string name = attribute.name;
boost::any value;
// Value is stored directly in the struct.
if (attribute.data_location == IMMEDIATE){
value = attribute.value;
// Value in struct is just a string reference to into the values map.
} else {
// TODO: Implement value.
value = h5_utils::get_value_from_reference(name, attribute.value, values);
}
if (attribute.data_type == NX_CHAR) {
src/h5_utils.hpp
+8 -8
View File
@@ -5,6 +5,7 @@
#include <list>
#include <boost/any.hpp>
#include <H5Cpp.h>
#include <map>
typedef boost::any h5_value;
@@ -43,16 +44,16 @@ struct h5_data_base{
};
struct h5_parent: public h5_base{
h5_parent(std::string name, NODE_TYPE node_type, std::list<h5_base> items) : h5_base(name, node_type), items(items) {};
std::list<h5_base> items;
h5_parent(std::string name, NODE_TYPE node_type, std::list<h5_base*> items) : h5_base(name, node_type), items(items) {};
std::list<h5_base*> items;
};
struct h5_group : public h5_parent {
h5_group(std::string name, std::list<h5_base> items) : h5_parent(name, GROUP, items) {};
h5_group(std::string name, std::list<h5_base*> items) : h5_parent(name, GROUP, items) {};
};
struct h5_dataset : public h5_parent, public h5_data_base{
h5_dataset(std::string name, std::string value, DATA_TYPE data_type, std::list<h5_base> items={})
h5_dataset(std::string name, std::string value, DATA_TYPE data_type, std::list<h5_base*> items={})
: h5_parent(name, DATASET, items), h5_data_base(data_type, REFERENCE), value(value) {};
std::string value;
@@ -67,17 +68,16 @@ struct h5_attr : public h5_base, public h5_data_base {
namespace h5_utils{
H5::Group create_group(H5::CommonFG& target, std::string name);
H5::DataSet write_dataset(H5::Group& target, h5_dataset& dataset);
H5::DataSet write_dataset(H5::Group& target, h5_dataset& dataset, std::map<std::string, boost::any>& values);
H5::DataSet write_dataset(H5::Group& target, std::string name, double value);
H5::DataSet write_dataset(H5::Group& target, std::string name, int value);
H5::DataSet write_dataset(H5::Group& target, std::string name, std::string value);
void write_attribute(H5::H5Object& target, h5_attr& attribute);
void write_attribute(H5::H5Object& target, h5_attr& attribute, std::map<std::string, boost::any>& values);
void write_attribute(H5::H5Object& target, std::string name, std::string value);
void write_attribute(H5::H5Object& target, std::string name, int value);
boost::any get_value_from_reference(std::string& dataset_name, boost::any value_reference, std::map<std::string, boost::any>& values);
}
#endif