/*!
		* \brief Routine for publishing joint_states.
		*
		* Gets current positions and velocities from the hardware and publishes them as joint_states.
		*/
		void publishJointState()
		{
			if (isInitialized_ == true)
			{
				// create joint_state message
				int DOF = ModIds_param_.size();
				std::vector<double> ActualPos;
				std::vector<double> ActualVel;
				ActualPos.resize(DOF);
				ActualVel.resize(DOF);

				PCube_->getConfig(ActualPos);
				PCube_->getJointVelocities(ActualVel);

				sensor_msgs::JointState msg;
				msg.header.stamp = ros::Time::now();
				msg.name.resize(DOF);
				msg.position.resize(DOF);
				msg.velocity.resize(DOF);

				msg.name = JointNames_;

				for (int i = 0; i<DOF; i++ )
				{
					msg.position[i] = ActualPos[i];
					msg.velocity[i] = ActualVel[i];
					//std::cout << "Joint " << msg.name[i] <<": pos="<<  msg.position[i] << "vel=" << msg.velocity[i] << std::endl;
				}
		
				// publish message
				topicPub_JointState_.publish(msg);

				pr2_controllers_msgs::JointTrajectoryControllerState controllermsg;
				controllermsg.header.stamp = ros::Time::now();
				controllermsg.joint_names.resize(DOF);
				controllermsg.actual.positions.resize(DOF);
				controllermsg.actual.velocities.resize(DOF);

				controllermsg.joint_names = JointNames_;

				for (int i = 0; i<DOF; i++ )
				{
					controllermsg.actual.positions[i] = ActualPos[i];
					controllermsg.actual.velocities[i] = ActualVel[i];
					//std::cout << "Joint " << msg.name[i] <<": pos="<<  msg.position[i] << "vel=" << msg.velocity[i] << std::endl;
				}
				topicPub_ControllerState_.publish(controllermsg);

			}
		}
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		/*!
		* \brief Routine for publishing joint_states.
		*
		* Gets current positions and velocities from the hardware and publishes them as joint_states.
		*/
		void publishJointState()
		{
		  updater_.update();
			if (isInitialized_ == true)
			{
				// publish joint state message
				int DOF = ModIds_param_.size();
				std::vector<double> ActualPos;
				std::vector<double> ActualVel;
				ActualPos.resize(DOF);
				ActualVel.resize(DOF);

				lock_semaphore(can_sem);
				int success = PCube_->getConfig(ActualPos);
				if (!success) return;
				PCube_->getJointVelocities(ActualVel);
				unlock_semaphore(can_sem);

				sensor_msgs::JointState msg;
				msg.header.stamp = ros::Time::now();
				msg.name.resize(DOF);
				msg.position.resize(DOF);
				msg.velocity.resize(DOF);

				msg.name = JointNames_;

				for (int i = 0; i<DOF; i++ )
				{
					msg.position[i] = ActualPos[i];
					msg.velocity[i] = ActualVel[i];
					//std::cout << "Joint " << msg.name[i] <<": pos="<<  msg.position[i] << "vel=" << msg.velocity[i] << std::endl;
				}

				topicPub_JointState_.publish(msg);

				// publish controller state message
				pr2_controllers_msgs::JointTrajectoryControllerState controllermsg;
				controllermsg.header.stamp = ros::Time::now();
				controllermsg.joint_names.resize(DOF);
				controllermsg.desired.positions.resize(DOF);
				controllermsg.desired.velocities.resize(DOF);
				controllermsg.actual.positions.resize(DOF);
				controllermsg.actual.velocities.resize(DOF);
				controllermsg.error.positions.resize(DOF);
				controllermsg.error.velocities.resize(DOF);

				controllermsg.joint_names = JointNames_;

				for (int i = 0; i<DOF; i++ )
				{
					//std::cout << "Joint " << msg.name[i] <<": pos="<<  msg.position[i] << "vel=" << msg.velocity[i] << std::endl;
					
					if (traj_point_.positions.size() != 0)
						controllermsg.desired.positions[i] = traj_point_.positions[i];
					else
						controllermsg.desired.positions[i] = 0.0;
					controllermsg.desired.velocities[i] = 0.0;
					
					controllermsg.actual.positions[i] = ActualPos[i];
					controllermsg.actual.velocities[i] = ActualVel[i];
					
					controllermsg.error.positions[i] = controllermsg.desired.positions[i] - controllermsg.actual.positions[i];
					controllermsg.error.velocities[i] = controllermsg.desired.velocities[i] - controllermsg.actual.velocities[i];
				}
				topicPub_ControllerState_.publish(controllermsg);

			}
		}