trajopt_planner_manager.cpp

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/* Author: Omid Heidari
   Desc:   TrajOpt planning plugin
*/
 
#include <moveit/planning_interface/planning_interface.h>
 
#include <moveit/collision_detection_fcl/collision_detector_allocator_fcl.h>
 
#include <class_loader/class_loader.hpp>
 
#include <trajopt_interface/trajopt_planning_context.h>
 
namespace trajopt_interface
{
class TrajOptPlannerManager : public planning_interface::PlannerManager
{
public:
  TrajOptPlannerManager() : planning_interface::PlannerManager()
  {
  }
 
  bool initialize(const moveit::core::RobotModelConstPtr& model, const std::string& ns) override
  {
    ROS_INFO(" ======================================= initialize gets called");
 
    if (!ns.empty())
      nh_ = ros::NodeHandle(ns);
    std::string trajopt_ns = ns.empty() ? "trajopt" : ns + "/trajopt";
 
    for (const std::string& gpName : model->getJointModelGroupNames())
    {
      ROS_INFO(" ======================================= group name: %s, robot model: %s", gpName.c_str(),
               model->getName().c_str());
      planning_contexts_[gpName] = std::make_shared<TrajOptPlanningContext>("trajopt_planning_context", gpName, model);
    }
 
    return true;
  }
 
  bool canServiceRequest(const moveit_msgs::MotionPlanRequest& req) const override
  {
    return req.trajectory_constraints.constraints.empty();
  }
 
  std::string getDescription() const override
  {
    return "TrajOpt";
  }
 
  void getPlanningAlgorithms(std::vector<std::string>& algs) const override
  {
    algs.clear();
    algs.push_back("trajopt");
  }
 
  planning_interface::PlanningContextPtr getPlanningContext(const planning_scene::PlanningSceneConstPtr& planning_scene,
                                                            const planning_interface::MotionPlanRequest& req,
                                                            moveit_msgs::MoveItErrorCodes& error_code) const override
  {
    ROS_INFO(" ======================================= getPlanningContext() is called ");
    error_code.val = moveit_msgs::MoveItErrorCodes::SUCCESS;
 
    if (req.group_name.empty())
    {
      ROS_ERROR("No group specified to plan for");
      error_code.val = moveit_msgs::MoveItErrorCodes::INVALID_GROUP_NAME;
      return planning_interface::PlanningContextPtr();
    }
 
    if (!planning_scene)
    {
      ROS_ERROR("No planning scene supplied as input");
      error_code.val = moveit_msgs::MoveItErrorCodes::FAILURE;
      return planning_interface::PlanningContextPtr();
    }
 
    // create PlanningScene using hybrid collision detector
    planning_scene::PlanningScenePtr ps = planning_scene->diff();
 
    // set FCL for the collision
    ps->allocateCollisionDetector(collision_detection::CollisionDetectorAllocatorFCL::create());
 
    // retrieve and configure existing context
    const TrajOptPlanningContextPtr& context = planning_contexts_.at(req.group_name);
 
    ROS_INFO(" ======================================= context is made ");
 
    context->setPlanningScene(ps);
    context->setMotionPlanRequest(req);
 
    error_code.val = moveit_msgs::MoveItErrorCodes::SUCCESS;
 
    return context;
  }
 
private:
  ros::NodeHandle nh_;
 
protected:
  std::map<std::string, TrajOptPlanningContextPtr> planning_contexts_;
};
 
}  // namespace trajopt_interface
 
// register the TrajOptPlannerManager class as a plugin
CLASS_LOADER_REGISTER_CLASS(trajopt_interface::TrajOptPlannerManager, planning_interface::PlannerManager);