param_helper.h

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#include <ros/ros.h>

namespace recognizer_prediction_ism
{
class ParamHelper{
public:
    ParamHelper(std::string class_name, ros::NodeHandle nh) : class_name_(class_name), nh_(nh)
    {}

    template <typename T>
    void getParam(std::string param_name, T *variable, T default_value)
    {
        T d = default_value;
        if (!nh_.getParam(param_name, d))
            ROS_WARN_STREAM(class_name_ << ": " << param_name << " not set, using default!");

        ROS_DEBUG_STREAM_NAMED(class_name_, class_name_ << " parameter: " << param_name << " = " << d);
        *variable = d;
    }


private:
    std::string class_name_;
    ros::NodeHandle nh_;
};
template <>
void ParamHelper::getParam<unsigned int>(std::string param_name, unsigned int *variable, unsigned int default_value);
}