diff --git a/hardware_interface/include/hardware_interface/component_parser.hpp b/hardware_interface/include/hardware_interface/component_parser.hpp index 38ca0cf89d7..b9ca460800a 100644 --- a/hardware_interface/include/hardware_interface/component_parser.hpp +++ b/hardware_interface/include/hardware_interface/component_parser.hpp @@ -32,5 +32,23 @@ namespace hardware_interface HARDWARE_INTERFACE_PUBLIC std::vector parse_control_resources_from_urdf(const std::string & urdf); +/** + * \param[in] component_info information about a component (gpio, joint, sensor) + * \return vector filled with information about hardware's StateInterfaces for the component + * which are exported + */ +HARDWARE_INTERFACE_PUBLIC +std::vector parse_state_interface_descriptions_from_hardware_info( + const std::vector & component_info); + +/** + * \param[in] component_info information about a component (gpio, joint, sensor) + * \return vector filled with information about hardware's CommandInterfaces for the component + * which are exported + */ +HARDWARE_INTERFACE_PUBLIC +std::vector parse_command_interface_descriptions_from_hardware_info( + const std::vector & component_info); + } // namespace hardware_interface #endif // HARDWARE_INTERFACE__COMPONENT_PARSER_HPP_ diff --git a/hardware_interface/include/hardware_interface/handle.hpp b/hardware_interface/include/hardware_interface/handle.hpp index dc536e51be4..72b1d6cf92f 100644 --- a/hardware_interface/include/hardware_interface/handle.hpp +++ b/hardware_interface/include/hardware_interface/handle.hpp @@ -15,42 +15,67 @@ #ifndef HARDWARE_INTERFACE__HANDLE_HPP_ #define HARDWARE_INTERFACE__HANDLE_HPP_ +#include +#include #include +#include +#include +#include "hardware_interface/hardware_info.hpp" #include "hardware_interface/macros.hpp" +#include "hardware_interface/visibility_control.h" namespace hardware_interface { + +typedef std::variant HANDLE_DATATYPE; + /// A handle used to get and set a value on a given interface. -class ReadOnlyHandle +class Handle { public: - ReadOnlyHandle( + [[deprecated("Use InterfaceDescription for initializing the Interface")]] + + Handle( const std::string & prefix_name, const std::string & interface_name, double * value_ptr = nullptr) : prefix_name_(prefix_name), interface_name_(interface_name), value_ptr_(value_ptr) { } - explicit ReadOnlyHandle(const std::string & interface_name) + explicit Handle(const InterfaceDescription & interface_description) + : prefix_name_(interface_description.prefix_name), + interface_name_(interface_description.interface_info.name) + { + // As soon as multiple datatypes are used in HANDLE_DATATYPE + // we need to initialize according the type passed in interface description + value_ = std::numeric_limits::quiet_NaN(); + value_ptr_ = std::get_if(&value_); + } + + [[deprecated("Use InterfaceDescription for initializing the Interface")]] + + explicit Handle(const std::string & interface_name) : interface_name_(interface_name), value_ptr_(nullptr) { } - explicit ReadOnlyHandle(const char * interface_name) + [[deprecated("Use InterfaceDescription for initializing the Interface")]] + + explicit Handle(const char * interface_name) : interface_name_(interface_name), value_ptr_(nullptr) { } - ReadOnlyHandle(const ReadOnlyHandle & other) = default; + Handle(const Handle & other) = default; - ReadOnlyHandle(ReadOnlyHandle && other) = default; + Handle(Handle && other) = default; - ReadOnlyHandle & operator=(const ReadOnlyHandle & other) = default; + Handle & operator=(const Handle & other) = default; - ReadOnlyHandle & operator=(ReadOnlyHandle && other) = default; + Handle & operator=(Handle && other) = default; - virtual ~ReadOnlyHandle() = default; + virtual ~Handle() = default; /// Returns true if handle references a value. inline operator bool() const { return value_ptr_ != nullptr; } @@ -70,60 +95,54 @@ class ReadOnlyHandle double get_value() const { + // BEGIN (Handle export change): for backward compatibility + // TODO(Manuel) return value_ if old functionality is removed THROW_ON_NULLPTR(value_ptr_); return *value_ptr_; + // END + } + + void set_value(double value) + { + // BEGIN (Handle export change): for backward compatibility + // TODO(Manuel) set value_ directly if old functionality is removed + THROW_ON_NULLPTR(this->value_ptr_); + *this->value_ptr_ = value; + // END } protected: std::string prefix_name_; std::string interface_name_; + HANDLE_DATATYPE value_; + // BEGIN (Handle export change): for backward compatibility + // TODO(Manuel) redeclare as HANDLE_DATATYPE * value_ptr_ if old functionality is removed double * value_ptr_; + // END }; -class ReadWriteHandle : public ReadOnlyHandle +class StateInterface : public Handle { public: - ReadWriteHandle( - const std::string & prefix_name, const std::string & interface_name, - double * value_ptr = nullptr) - : ReadOnlyHandle(prefix_name, interface_name, value_ptr) - { - } - - explicit ReadWriteHandle(const std::string & interface_name) : ReadOnlyHandle(interface_name) {} - - explicit ReadWriteHandle(const char * interface_name) : ReadOnlyHandle(interface_name) {} - - ReadWriteHandle(const ReadWriteHandle & other) = default; - - ReadWriteHandle(ReadWriteHandle && other) = default; - - ReadWriteHandle & operator=(const ReadWriteHandle & other) = default; - - ReadWriteHandle & operator=(ReadWriteHandle && other) = default; - - virtual ~ReadWriteHandle() = default; - - void set_value(double value) + explicit StateInterface(const InterfaceDescription & interface_description) + : Handle(interface_description) { - THROW_ON_NULLPTR(this->value_ptr_); - *this->value_ptr_ = value; } -}; -class StateInterface : public ReadOnlyHandle -{ -public: StateInterface(const StateInterface & other) = default; StateInterface(StateInterface && other) = default; - using ReadOnlyHandle::ReadOnlyHandle; + using Handle::Handle; }; -class CommandInterface : public ReadWriteHandle +class CommandInterface : public Handle { public: + explicit CommandInterface(const InterfaceDescription & interface_description) + : Handle(interface_description) + { + } /// CommandInterface copy constructor is actively deleted. /** * Command interfaces are having a unique ownership and thus @@ -134,7 +153,7 @@ class CommandInterface : public ReadWriteHandle CommandInterface(CommandInterface && other) = default; - using ReadWriteHandle::ReadWriteHandle; + using Handle::Handle; }; } // namespace hardware_interface diff --git a/hardware_interface/include/hardware_interface/hardware_info.hpp b/hardware_interface/include/hardware_interface/hardware_info.hpp index 2bd2099e695..bf14f24041d 100644 --- a/hardware_interface/include/hardware_interface/hardware_info.hpp +++ b/hardware_interface/include/hardware_interface/hardware_info.hpp @@ -40,9 +40,9 @@ struct InterfaceInfo std::string max; /// (Optional) Initial value of the interface. std::string initial_value; - /// (Optional) The datatype of the interface, e.g. "bool", "int". Used by GPIOs. + /// (Optional) The datatype of the interface, e.g. "bool", "int". std::string data_type; - /// (Optional) If the handle is an array, the size of the array. Used by GPIOs. + /// (Optional) If the handle is an array, the size of the array. int size; /// (Optional) enable or disable the limits for the command interfaces bool enable_limits; @@ -126,6 +126,32 @@ struct TransmissionInfo std::unordered_map parameters; }; +/** + * This structure stores information about an interface for a specific hardware which should be + * instantiated internally. + */ +struct InterfaceDescription +{ + InterfaceDescription(const std::string & prefix_name_in, const InterfaceInfo & interface_info_in) + : prefix_name(prefix_name_in), interface_info(interface_info_in) + { + } + + /** + * Name of the interface defined by the user. + */ + std::string prefix_name; + + /** + * Information about the Interface type (position, velocity,...) as well as limits and so on. + */ + InterfaceInfo interface_info; + + std::string get_name() const { return prefix_name + "/" + interface_info.name; } + + std::string get_interface_type() const { return interface_info.name; } +}; + /// This structure stores information about hardware defined in a robot's URDF. struct HardwareInfo { diff --git a/hardware_interface/src/component_parser.cpp b/hardware_interface/src/component_parser.cpp index 42432dda8de..9dac3d9f660 100644 --- a/hardware_interface/src/component_parser.cpp +++ b/hardware_interface/src/component_parser.cpp @@ -905,4 +905,38 @@ std::vector parse_control_resources_from_urdf(const std::string & return hardware_info; } +std::vector parse_state_interface_descriptions_from_hardware_info( + const std::vector & component_info) +{ + std::vector component_state_interface_descriptions; + component_state_interface_descriptions.reserve(component_info.size()); + + for (const auto & component : component_info) + { + for (const auto & state_interface : component.state_interfaces) + { + component_state_interface_descriptions.emplace_back( + InterfaceDescription(component.name, state_interface)); + } + } + return component_state_interface_descriptions; +} + +std::vector parse_command_interface_descriptions_from_hardware_info( + const std::vector & component_info) +{ + std::vector component_command_interface_descriptions; + component_command_interface_descriptions.reserve(component_info.size()); + + for (const auto & component : component_info) + { + for (const auto & command_interface : component.command_interfaces) + { + component_command_interface_descriptions.emplace_back( + InterfaceDescription(component.name, command_interface)); + } + } + return component_command_interface_descriptions; +} + } // namespace hardware_interface diff --git a/hardware_interface/test/test_component_parser.cpp b/hardware_interface/test/test_component_parser.cpp index be891787f3e..cdbff8ca21a 100644 --- a/hardware_interface/test/test_component_parser.cpp +++ b/hardware_interface/test/test_component_parser.cpp @@ -1404,3 +1404,113 @@ TEST_F(TestComponentParser, urdf_incomplete_throws_error) std::string(ros2_control_test_assets::urdf_tail); ASSERT_THROW(parse_control_resources_from_urdf(urdf_to_test), std::runtime_error); } + +TEST_F(TestComponentParser, parse_joint_state_interface_descriptions_from_hardware_info) +{ + const std::string urdf_to_test = + std::string(ros2_control_test_assets::urdf_head) + + ros2_control_test_assets::valid_urdf_ros2_control_system_multi_joints_transmission + + ros2_control_test_assets::urdf_tail; + const auto control_hardware = parse_control_resources_from_urdf(urdf_to_test); + + const auto joint_state_descriptions = + parse_state_interface_descriptions_from_hardware_info(control_hardware[0].joints); + EXPECT_EQ(joint_state_descriptions[0].prefix_name, "joint1"); + EXPECT_EQ(joint_state_descriptions[0].get_interface_type(), "position"); + EXPECT_EQ(joint_state_descriptions[0].get_name(), "joint1/position"); + + EXPECT_EQ(joint_state_descriptions[1].prefix_name, "joint2"); + EXPECT_EQ(joint_state_descriptions[1].get_interface_type(), "position"); + EXPECT_EQ(joint_state_descriptions[1].get_name(), "joint2/position"); +} + +TEST_F(TestComponentParser, parse_joint_command_interface_descriptions_from_hardware_info) +{ + const std::string urdf_to_test = + std::string(ros2_control_test_assets::urdf_head) + + ros2_control_test_assets::valid_urdf_ros2_control_system_multi_joints_transmission + + ros2_control_test_assets::urdf_tail; + const auto control_hardware = parse_control_resources_from_urdf(urdf_to_test); + + const auto joint_command_descriptions = + parse_command_interface_descriptions_from_hardware_info(control_hardware[0].joints); + EXPECT_EQ(joint_command_descriptions[0].prefix_name, "joint1"); + EXPECT_EQ(joint_command_descriptions[0].get_interface_type(), "position"); + EXPECT_EQ(joint_command_descriptions[0].get_name(), "joint1/position"); + EXPECT_EQ(joint_command_descriptions[0].interface_info.min, "-1"); + EXPECT_EQ(joint_command_descriptions[0].interface_info.max, "1"); + + EXPECT_EQ(joint_command_descriptions[1].prefix_name, "joint2"); + EXPECT_EQ(joint_command_descriptions[1].get_interface_type(), "position"); + EXPECT_EQ(joint_command_descriptions[1].get_name(), "joint2/position"); + EXPECT_EQ(joint_command_descriptions[1].interface_info.min, "-1"); + EXPECT_EQ(joint_command_descriptions[1].interface_info.max, "1"); +} + +TEST_F(TestComponentParser, parse_sensor_state_interface_descriptions_from_hardware_info) +{ + const std::string urdf_to_test = std::string(ros2_control_test_assets::urdf_head) + + ros2_control_test_assets::valid_urdf_ros2_control_sensor_only + + ros2_control_test_assets::urdf_tail; + const auto control_hardware = parse_control_resources_from_urdf(urdf_to_test); + + const auto sensor_state_descriptions = + parse_state_interface_descriptions_from_hardware_info(control_hardware[0].sensors); + EXPECT_EQ(sensor_state_descriptions[0].prefix_name, "sensor1"); + EXPECT_EQ(sensor_state_descriptions[0].get_interface_type(), "roll"); + EXPECT_EQ(sensor_state_descriptions[0].get_name(), "sensor1/roll"); + EXPECT_EQ(sensor_state_descriptions[1].prefix_name, "sensor1"); + EXPECT_EQ(sensor_state_descriptions[1].get_interface_type(), "pitch"); + EXPECT_EQ(sensor_state_descriptions[1].get_name(), "sensor1/pitch"); + EXPECT_EQ(sensor_state_descriptions[2].prefix_name, "sensor1"); + EXPECT_EQ(sensor_state_descriptions[2].get_interface_type(), "yaw"); + EXPECT_EQ(sensor_state_descriptions[2].get_name(), "sensor1/yaw"); + + EXPECT_EQ(sensor_state_descriptions[3].prefix_name, "sensor2"); + EXPECT_EQ(sensor_state_descriptions[3].get_interface_type(), "image"); + EXPECT_EQ(sensor_state_descriptions[3].get_name(), "sensor2/image"); +} + +TEST_F(TestComponentParser, parse_gpio_state_interface_descriptions_from_hardware_info) +{ + const std::string urdf_to_test = + std::string(ros2_control_test_assets::urdf_head) + + ros2_control_test_assets::valid_urdf_ros2_control_system_robot_with_gpio + + ros2_control_test_assets::urdf_tail; + const auto control_hardware = parse_control_resources_from_urdf(urdf_to_test); + + const auto gpio_state_descriptions = + parse_state_interface_descriptions_from_hardware_info(control_hardware[0].gpios); + EXPECT_EQ(gpio_state_descriptions[0].prefix_name, "flange_analog_IOs"); + EXPECT_EQ(gpio_state_descriptions[0].get_interface_type(), "analog_output1"); + EXPECT_EQ(gpio_state_descriptions[0].get_name(), "flange_analog_IOs/analog_output1"); + EXPECT_EQ(gpio_state_descriptions[1].prefix_name, "flange_analog_IOs"); + EXPECT_EQ(gpio_state_descriptions[1].get_interface_type(), "analog_input1"); + EXPECT_EQ(gpio_state_descriptions[1].get_name(), "flange_analog_IOs/analog_input1"); + EXPECT_EQ(gpio_state_descriptions[2].prefix_name, "flange_analog_IOs"); + EXPECT_EQ(gpio_state_descriptions[2].get_interface_type(), "analog_input2"); + EXPECT_EQ(gpio_state_descriptions[2].get_name(), "flange_analog_IOs/analog_input2"); + + EXPECT_EQ(gpio_state_descriptions[3].prefix_name, "flange_vacuum"); + EXPECT_EQ(gpio_state_descriptions[3].get_interface_type(), "vacuum"); + EXPECT_EQ(gpio_state_descriptions[3].get_name(), "flange_vacuum/vacuum"); +} + +TEST_F(TestComponentParser, parse_gpio_command_interface_descriptions_from_hardware_info) +{ + const std::string urdf_to_test = + std::string(ros2_control_test_assets::urdf_head) + + ros2_control_test_assets::valid_urdf_ros2_control_system_robot_with_gpio + + ros2_control_test_assets::urdf_tail; + const auto control_hardware = parse_control_resources_from_urdf(urdf_to_test); + + const auto gpio_state_descriptions = + parse_command_interface_descriptions_from_hardware_info(control_hardware[0].gpios); + EXPECT_EQ(gpio_state_descriptions[0].prefix_name, "flange_analog_IOs"); + EXPECT_EQ(gpio_state_descriptions[0].get_interface_type(), "analog_output1"); + EXPECT_EQ(gpio_state_descriptions[0].get_name(), "flange_analog_IOs/analog_output1"); + + EXPECT_EQ(gpio_state_descriptions[1].prefix_name, "flange_vacuum"); + EXPECT_EQ(gpio_state_descriptions[1].get_interface_type(), "vacuum"); + EXPECT_EQ(gpio_state_descriptions[1].get_name(), "flange_vacuum/vacuum"); +} diff --git a/hardware_interface/test/test_handle.cpp b/hardware_interface/test/test_handle.cpp index da8258c6435..7d79c032f08 100644 --- a/hardware_interface/test/test_handle.cpp +++ b/hardware_interface/test/test_handle.cpp @@ -14,8 +14,11 @@ #include #include "hardware_interface/handle.hpp" +#include "hardware_interface/hardware_info.hpp" using hardware_interface::CommandInterface; +using hardware_interface::InterfaceDescription; +using hardware_interface::InterfaceInfo; using hardware_interface::StateInterface; namespace @@ -64,3 +67,31 @@ TEST(TestHandle, value_methods_work_on_non_nullptr) EXPECT_NO_THROW(handle.set_value(0.0)); EXPECT_DOUBLE_EQ(handle.get_value(), 0.0); } + +TEST(TestHandle, interface_description_state_interface_name_getters_work) +{ + const std::string POSITION_INTERFACE = "position"; + const std::string JOINT_NAME_1 = "joint1"; + InterfaceInfo info; + info.name = POSITION_INTERFACE; + InterfaceDescription interface_descr(JOINT_NAME_1, info); + StateInterface handle{interface_descr}; + + EXPECT_EQ(handle.get_name(), JOINT_NAME_1 + "/" + POSITION_INTERFACE); + EXPECT_EQ(handle.get_interface_name(), POSITION_INTERFACE); + EXPECT_EQ(handle.get_prefix_name(), JOINT_NAME_1); +} + +TEST(TestHandle, interface_description_command_interface_name_getters_work) +{ + const std::string POSITION_INTERFACE = "position"; + const std::string JOINT_NAME_1 = "joint1"; + InterfaceInfo info; + info.name = POSITION_INTERFACE; + InterfaceDescription interface_descr(JOINT_NAME_1, info); + CommandInterface handle{interface_descr}; + + EXPECT_EQ(handle.get_name(), JOINT_NAME_1 + "/" + POSITION_INTERFACE); + EXPECT_EQ(handle.get_interface_name(), POSITION_INTERFACE); + EXPECT_EQ(handle.get_prefix_name(), JOINT_NAME_1); +} diff --git a/transmission_interface/include/transmission_interface/handle.hpp b/transmission_interface/include/transmission_interface/handle.hpp index 024a019bfda..4c401896481 100644 --- a/transmission_interface/include/transmission_interface/handle.hpp +++ b/transmission_interface/include/transmission_interface/handle.hpp @@ -20,17 +20,17 @@ namespace transmission_interface { /** A handle used to get and set a value on a given actuator interface. */ -class ActuatorHandle : public hardware_interface::ReadWriteHandle +class ActuatorHandle : public hardware_interface::Handle { public: - using hardware_interface::ReadWriteHandle::ReadWriteHandle; + using hardware_interface::Handle::Handle; }; /** A handle used to get and set a value on a given joint interface. */ -class JointHandle : public hardware_interface::ReadWriteHandle +class JointHandle : public hardware_interface::Handle { public: - using hardware_interface::ReadWriteHandle::ReadWriteHandle; + using hardware_interface::Handle::Handle; }; } // namespace transmission_interface