NaoJointsAnalyzer.cpp

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#include "NaoJointsAnalyzer.h"

#include <sstream>
#include <fstream>

PLUGINLIB_DECLARE_CLASS(nao_dashboard, NaoJointsAnalyzer,
                diagnostic_aggregator::NaoJointsAnalyzer,
                diagnostic_aggregator::Analyzer)

namespace diagnostic_aggregator {

NaoJointsAnalyzer::NaoJointsAnalyzer() :
        m_path(""), m_niceName("Joints"), m_lastSeen(0) {
}

NaoJointsAnalyzer::~NaoJointsAnalyzer() {
}

bool NaoJointsAnalyzer::init(const std::string base_name, const ros::NodeHandle &n) {
        if (!n.getParam("path", m_niceName))
        {
                ROS_ERROR("NaoJointsAnalyzer was not given parameter \"path\". Namespace: %s",
                          n.getNamespace().c_str());
                return false;
        }

        m_path = base_name;

        boost::shared_ptr<StatusItem> item(new StatusItem(m_niceName));
        m_jointsMasterItem = item;

        return true;
}

bool NaoJointsAnalyzer::match(const std::string name) {
        return name.find("nao_joint") == 0;
}

bool NaoJointsAnalyzer::analyze(const boost::shared_ptr<StatusItem> item) {
        if(item->getName().find("nao_joint") != 0)
                return false;

        JointData data;

        std::stringstream ssStiffness(item->getValue("Stiffness"));
        ssStiffness >> data.stiffness;

        std::stringstream ssTemperature(item->getValue("Temperature"));
        ssTemperature >> data.temperature;

        data.status = item;

        if(m_joints.find(item->getName()) == m_joints.end())
                m_joints.insert(make_pair(item->getName(), data));
        else
                m_joints.at(item->getName()) = data;

        m_lastSeen = ros::Time::now();

        return true;
}

bool NaoJointsAnalyzer::compareByTemperature(const NaoJointsAnalyzer::JointData& a, const NaoJointsAnalyzer::JointData& b) {
    return (a.temperature > b.temperature);
}

template<typename T>
void NaoJointsAnalyzer::addValue(boost::shared_ptr<diagnostic_msgs::DiagnosticStatus> joint_stat, const std::string& key, const T& value) const {
        std::stringstream ss;
        ss << value;
        diagnostic_msgs::KeyValue kv;
        kv.key = key;
        kv.value = ss.str();
        joint_stat->values.push_back(kv);
}

std::vector<boost::shared_ptr<diagnostic_msgs::DiagnosticStatus> > NaoJointsAnalyzer::report() {
    bool stale = (ros::Time::now()-m_lastSeen).toSec() > 5.0;
        boost::shared_ptr<diagnostic_msgs::DiagnosticStatus> joint_stat =
                        m_jointsMasterItem->toStatusMsg(m_path, stale);

        std::vector<boost::shared_ptr<diagnostic_msgs::DiagnosticStatus> > output;
        if(stale) {
                output.push_back(joint_stat);
                return output;
        }

        double maxTemperature = 0.0;
        double maxStiffness = 0.0;
        double minStiffness = 1.0;
        double minStiffnessWoHands = 1.0;

        std::vector<JointData> hotJoints;
        joint_stat->level = diagnostic_msgs::DiagnosticStatus::OK;

        for(JointsMapType::const_iterator it = m_joints.begin(); it != m_joints.end(); it++) {
                if(it->first.find("RHipYawPitch") == std::string::npos) {
                        maxTemperature = std::max(maxTemperature, it->second.temperature);
                        maxStiffness = std::max(maxStiffness, it->second.stiffness);
                        minStiffness = std::min(minStiffness, it->second.stiffness);
                        if(it->first.find("Hand") == std::string::npos)
                                minStiffnessWoHands = std::min(minStiffnessWoHands, it->second.stiffness);
                        if((int) it->second.status->getLevel() >= (int) diagnostic_msgs::DiagnosticStatus::WARN) {
                            hotJoints.push_back(it->second);
                        }
                        if(it->second.status->getLevel() > joint_stat->level)
                            joint_stat->level = it->second.status->getLevel();
                }
        }

        addValue(joint_stat, "Highest Temperature", maxTemperature);
        addValue(joint_stat, "Highest Stiffness", maxStiffness);
        addValue(joint_stat, "Lowest Stiffness", minStiffness);
        addValue(joint_stat, "Lowest Stiffness without Hands", minStiffnessWoHands);

    std::sort(hotJoints.begin(), hotJoints.end(), NaoJointsAnalyzer::compareByTemperature);
    std::stringstream hotJointsSS;
    for(size_t i = 0; i < hotJoints.size(); i++) {
        hotJointsSS << std::endl << removeLeadingNameChaff(hotJoints[i].status->getName(), "nao_joint") << ": " << hotJoints[i].temperature << "°C";
    }
    addValue(joint_stat, "Hot Joints", hotJointsSS.str());

        if (joint_stat->level == diagnostic_msgs::DiagnosticStatus::OK) {
                joint_stat->message = "OK";
        } else if (joint_stat->level == diagnostic_msgs::DiagnosticStatus::WARN) {
                joint_stat->message = "WARN";
        } else {
                joint_stat->message = "ERROR";
        }

        output.push_back(joint_stat);

        for(JointsMapType::const_iterator it = m_joints.begin(); it != m_joints.end(); it++) {
                boost::shared_ptr<diagnostic_msgs::DiagnosticStatus> msg(it->second.status->toStatusMsg(m_path + "/" + m_niceName,
                                (ros::Time::now() - it->second.status->getLastUpdateTime()).toSec() > 3.0));
                msg->name = m_path + "/" + m_niceName + "/" + removeLeadingNameChaff(it->second.status->getName(), "nao_joint: ");
                output.push_back(msg);
        }

        return output;
}
}