Convert Reaction type

src/reaction.cpp

@@ -0,0 +1,48 @@
+#include "reaction.h"
+
+#include <string>
+#include <utility> // for move
+
+#include "hdf5_interface.h"
+
+namespace openmc {
+
+Reaction::Reaction(hid_t group, const std::vector<int>& temperatures)
+{
+  read_attribute(group, "Q_value", q_value_);
+  read_attribute(group, "mt", mt_);
+  int cm;
+  read_attribute(group, "center_of_mass", cm);
+  scatter_in_cm_ = (cm == 1);
+
+  // Read cross section and threshold_idx data
+  for (auto t : temperatures) {
+    // Get group corresponding to temperature
+    std::string temp_str {std::to_string(t) + "K"};
+    hid_t temp_group = open_group(group, temp_str.c_str());
+    hid_t dset = open_dataset(temp_group, "xs");
+
+    // Get threshold index
+    TemperatureXS xs;
+    read_attribute(dset, "threshold_idx", xs.threshold);
+
+    // Read cross section values
+    read_dataset(dset, xs.value);
+    close_dataset(dset);
+    close_group(temp_group);
+
+    // create new entry in xs vector
+    xs_.push_back(std::move(xs));
+  }
+
+  // Read products
+  for (const auto& name : group_names(group)) {
+    if (name.rfind("product_", 0) == 0) {
+      hid_t pgroup = open_group(group, name.c_str());
+      products_.emplace_back(pgroup);
+      close_group(pgroup);
+    }
+  }
+}
+
+}