get_parameter_value_json.C

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// macro for getting parameter value in JSON format
void get_parameter_value_json()
{
    // get 'on' parameter value (boolean value)
    UniDetectorParameter* pDetectorParameter = UniDetectorParameter::GetDetectorParameter(
        "DCH1", "my_json", 1, 77);   //(detector_name, parameter_name, period_number, run_number)
    if (pDetectorParameter == nullptr) {
        cout << "\nMacro finished with errors" << endl;
        return;
    }
 
    JsonValue* json_value = (JsonValue*)pDetectorParameter->GetValue();
    cout << "JSON value for DCH1:my_json" << endl << json_value->value.dump(4) << endl;
 
    // clean memory after work
    delete json_value;
    delete pDetectorParameter;
 
    cout << "\nMacro finished successfully" << endl;
}