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Merge pull request #91 from ros2/parameter_to_yaml

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a method to dump all elements of a parameter as yaml
This commit is contained in:
Tully Foote 2015-10-20 16:01:38 -07:00
commit dba12cba94
1 changed files with 62 additions and 3 deletions
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65
rclcpp/include/rclcpp/parameter.hpp
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@ -224,7 +224,7 @@ public:
return parameter; return parameter;
} }
std::string to_string() const std::string value_to_string() const
{ {
switch (get_type()) { switch (get_type()) {
case rclcpp::parameter::ParameterType::PARAMETER_BOOL: case rclcpp::parameter::ParameterType::PARAMETER_BOOL:
@ -265,9 +265,68 @@ private:
rcl_interfaces::msg::ParameterValue value_; rcl_interfaces::msg::ParameterValue value_;
}; };
std::ostream & operator<<(std::ostream & os, const ParameterVariant & pv)
/* Return a json encoded version of the parameter intended for a dict. */
std::string _to_json_dict_entry(const ParameterVariant & param)
{ {
os << pv.to_string(); std::stringstream ss;
ss << "\"" << param.get_name() << "\": ";
ss << "{\"type\": \"" << param.get_type_name() << "\", ";
ss << "\"value\": \"" << param.value_to_string() << "\"}";
return ss.str();
}
} /* namespace parameter */
} /* namespace rclcpp */
namespace std
{
/* Return a json encoded version of the parameter intended for a list. */
inline std::string to_string(const rclcpp::parameter::ParameterVariant & param)
{
std::stringstream ss;
ss << "{\"name\": \"" << param.get_name() << "\", ";
ss << "\"type\": \"" << param.get_type_name() << "\", ";
ss << "\"value\": \"" << param.value_to_string() << "\"}";
return ss.str();
}
/* Return a json encoded version of a vector of parameters, as a string*/
inline std::string to_string(const std::vector<rclcpp::parameter::ParameterVariant> & parameters)
{
std::stringstream ss;
ss << "{";
bool first = true;
for (const auto & pv : parameters) {
if (first == false) {
ss << ", ";
} else {
first = false;
}
ss << rclcpp::parameter::_to_json_dict_entry(pv);
}
ss << "}";
return ss.str();
}
} /* namespace std */
namespace rclcpp
{
namespace parameter
{
std::ostream & operator<<(std::ostream & os, const rclcpp::parameter::ParameterVariant & pv)
{
os << std::to_string(pv);
return os;
}
std::ostream & operator<<(std::ostream & os, const std::vector<ParameterVariant> & parameters)
{
os << std::to_string(parameters);
return os; return os;
} }