execute_trajectory_action_capability.cpp

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/* Author: Kentaro Wada */
 
#include "execute_trajectory_action_capability.h"
 
#include <moveit/moveit_cpp/moveit_cpp.h>
#include <moveit/plan_execution/plan_execution.h>
#include <moveit/trajectory_processing/trajectory_tools.h>
#include <moveit/kinematic_constraints/utils.h>
#include <moveit/move_group/capability_names.h>
 
namespace move_group
{
static const rclcpp::Logger LOGGER =
    rclcpp::get_logger("moveit_move_group_default_capabilities.execute_trajectory_action_capability");
 
MoveGroupExecuteTrajectoryAction::MoveGroupExecuteTrajectoryAction() : MoveGroupCapability("ExecuteTrajectoryAction")
{
}
 
void MoveGroupExecuteTrajectoryAction::initialize()
{
  using std::placeholders::_1;
  using std::placeholders::_2;
 
  auto node = context_->moveit_cpp_->getNode();
  // start the move action server
  execute_action_server_ = rclcpp_action::create_server<ExecTrajectory>(
      node->get_node_base_interface(), node->get_node_clock_interface(), node->get_node_logging_interface(),
      node->get_node_waitables_interface(), EXECUTE_ACTION_NAME,
      [](const rclcpp_action::GoalUUID& /*unused*/, const std::shared_ptr<const ExecTrajectory::Goal>& /*unused*/) {
        RCLCPP_INFO(LOGGER, "Received goal request");
        return rclcpp_action::GoalResponse::ACCEPT_AND_EXECUTE;
      },
      [](const std::shared_ptr<ExecTrajectoryGoal>& /* unused */) {
        RCLCPP_INFO(LOGGER, "Received request to cancel goal");
        return rclcpp_action::CancelResponse::ACCEPT;
      },
      [this](const auto& goal) { executePathCallback(goal); });
}
 
void MoveGroupExecuteTrajectoryAction::executePathCallback(const std::shared_ptr<ExecTrajectoryGoal>& goal)
{
  auto action_res = std::make_shared<ExecTrajectory::Result>();
  if (!context_->trajectory_execution_manager_)
  {
    const std::string response = "Cannot execute trajectory since ~allow_trajectory_execution was set to false";
    action_res->error_code.val = moveit_msgs::msg::MoveItErrorCodes::CONTROL_FAILED;
    goal->abort(action_res);
    return;
  }
 
  executePath(goal, action_res);
 
  const std::string response = getActionResultString(action_res->error_code, false, false);
  auto fb = std::make_shared<ExecTrajectory::Feedback>();
  fb->state = response;
  if (action_res->error_code.val == moveit_msgs::msg::MoveItErrorCodes::SUCCESS)
  {
    goal->publish_feedback(fb);
    goal->succeed(action_res);
  }
  else
  {
    goal->publish_feedback(fb);
    goal->abort(action_res);
  }
 
  setExecuteTrajectoryState(IDLE, goal);
}
 
void MoveGroupExecuteTrajectoryAction::executePath(const std::shared_ptr<ExecTrajectoryGoal>& goal,
                                                   std::shared_ptr<ExecTrajectory::Result>& action_res)
{
  RCLCPP_INFO(LOGGER, "Execution request received");
 
  context_->trajectory_execution_manager_->clear();
  if (context_->trajectory_execution_manager_->push(goal->get_goal()->trajectory))
  {
    setExecuteTrajectoryState(MONITOR, goal);
    context_->trajectory_execution_manager_->execute();
    moveit_controller_manager::ExecutionStatus status = context_->trajectory_execution_manager_->waitForExecution();
    if (status == moveit_controller_manager::ExecutionStatus::SUCCEEDED)
    {
      action_res->error_code.val = moveit_msgs::msg::MoveItErrorCodes::SUCCESS;
    }
    else if (status == moveit_controller_manager::ExecutionStatus::PREEMPTED)
    {
      action_res->error_code.val = moveit_msgs::msg::MoveItErrorCodes::PREEMPTED;
    }
    else if (status == moveit_controller_manager::ExecutionStatus::TIMED_OUT)
    {
      action_res->error_code.val = moveit_msgs::msg::MoveItErrorCodes::TIMED_OUT;
    }
    else
    {
      action_res->error_code.val = moveit_msgs::msg::MoveItErrorCodes::CONTROL_FAILED;
    }
    RCLCPP_INFO_STREAM(LOGGER, "Execution completed: " << status.asString());
  }
  else
  {
    action_res->error_code.val = moveit_msgs::msg::MoveItErrorCodes::CONTROL_FAILED;
  }
}
 
void MoveGroupExecuteTrajectoryAction::preemptExecuteTrajectoryCallback()
{
  context_->trajectory_execution_manager_->stopExecution(true);
}
 
void MoveGroupExecuteTrajectoryAction::setExecuteTrajectoryState(MoveGroupState state,
                                                                 const std::shared_ptr<ExecTrajectoryGoal>& goal)
{
  auto execute_feedback = std::make_shared<ExecTrajectory::Feedback>();
  execute_feedback->state = stateToStr(state);
  goal->publish_feedback(execute_feedback);
}
 
}  // namespace move_group
 
#include <pluginlib/class_list_macros.hpp>
 
PLUGINLIB_EXPORT_CLASS(move_group::MoveGroupExecuteTrajectoryAction, move_group::MoveGroupCapability)