Example #1
0
void
MSFullExport::writeLane(OutputDevice& of, const MSLane& lane) {

    of.openTag("lane").writeAttr("id", lane.getID()).writeAttr("CO", lane.getCOEmissions()).writeAttr("CO2", lane.getCO2Emissions());
    of.writeAttr("NOx", lane.getNOxEmissions()).writeAttr("PMx", lane.getPMxEmissions()).writeAttr("HC", lane.getHCEmissions());
    of.writeAttr("noise", lane.getHarmonoise_NoiseEmissions()).writeAttr("fuel", lane.getFuelConsumption()).writeAttr("maxspeed", lane.getSpeedLimit());
    of.writeAttr("meanspeed", lane.getMeanSpeed() * 3.6).writeAttr("occupancy", lane.getNettoOccupancy()).writeAttr("vehicle_count", lane.getVehicleNumber());
    of.closeTag();
}
// ===========================================================================
// method definitions
// ===========================================================================
bool
TraCIServerAPI_Lane::processGet(TraCIServer& server, tcpip::Storage& inputStorage,
                                tcpip::Storage& outputStorage) {
    // variable
    int variable = inputStorage.readUnsignedByte();
    std::string id = inputStorage.readString();
    // check variable
    if (variable != ID_LIST && variable != LANE_LINK_NUMBER && variable != LANE_EDGE_ID && variable != VAR_LENGTH
            && variable != VAR_MAXSPEED && variable != LANE_LINKS && variable != VAR_SHAPE
            && variable != VAR_CO2EMISSION && variable != VAR_COEMISSION && variable != VAR_HCEMISSION && variable != VAR_PMXEMISSION
            && variable != VAR_NOXEMISSION && variable != VAR_FUELCONSUMPTION && variable != VAR_NOISEEMISSION && variable != VAR_WAITING_TIME
            && variable != LAST_STEP_MEAN_SPEED && variable != LAST_STEP_VEHICLE_NUMBER
            && variable != LAST_STEP_VEHICLE_ID_LIST && variable != LAST_STEP_OCCUPANCY && variable != LAST_STEP_VEHICLE_HALTING_NUMBER
            && variable != LAST_STEP_LENGTH && variable != VAR_CURRENT_TRAVELTIME
            && variable != LANE_ALLOWED && variable != LANE_DISALLOWED && variable != VAR_WIDTH && variable != ID_COUNT
       ) {
        return server.writeErrorStatusCmd(CMD_GET_LANE_VARIABLE, "Get Lane Variable: unsupported variable specified", outputStorage);
    }
    // begin response building
    tcpip::Storage tempMsg;
    //  response-code, variableID, objectID
    tempMsg.writeUnsignedByte(RESPONSE_GET_LANE_VARIABLE);
    tempMsg.writeUnsignedByte(variable);
    tempMsg.writeString(id);
    if (variable == ID_LIST) {
        std::vector<std::string> ids;
        MSLane::insertIDs(ids);
        tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
        tempMsg.writeStringList(ids);
    } else if (variable == ID_COUNT) {
        std::vector<std::string> ids;
        MSLane::insertIDs(ids);
        tempMsg.writeUnsignedByte(TYPE_INTEGER);
        tempMsg.writeInt((int) ids.size());
    } else {
        MSLane* lane = MSLane::dictionary(id);
        if (lane == 0) {
            return server.writeErrorStatusCmd(CMD_GET_LANE_VARIABLE, "Lane '" + id + "' is not known", outputStorage);
        }
        switch (variable) {
            case LANE_LINK_NUMBER:
                tempMsg.writeUnsignedByte(TYPE_UBYTE);
                tempMsg.writeUnsignedByte((int) lane->getLinkCont().size());
                break;
            case LANE_EDGE_ID:
                tempMsg.writeUnsignedByte(TYPE_STRING);
                tempMsg.writeString(lane->getEdge().getID());
                break;
            case VAR_LENGTH:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getLength());
                break;
            case VAR_MAXSPEED:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getSpeedLimit());
                break;
            case LANE_LINKS: {
                tempMsg.writeUnsignedByte(TYPE_COMPOUND);
                tcpip::Storage tempContent;
                unsigned int cnt = 0;
                tempContent.writeUnsignedByte(TYPE_INTEGER);
                const MSLinkCont& links = lane->getLinkCont();
                tempContent.writeInt((int) links.size());
                ++cnt;
                const SUMOTime currTime = MSNet::getInstance()->getCurrentTimeStep();
                for (MSLinkCont::const_iterator i = links.begin(); i != links.end(); ++i) {
                    MSLink* link = (*i);
                    // approached non-internal lane (if any)
                    tempContent.writeUnsignedByte(TYPE_STRING);
                    tempContent.writeString(link->getLane() != 0 ? link->getLane()->getID() : "");
                    ++cnt;
                    // approached "via", internal lane (if any)
                    tempContent.writeUnsignedByte(TYPE_STRING);
#ifdef HAVE_INTERNAL_LANES
                    tempContent.writeString(link->getViaLane() != 0 ? link->getViaLane()->getID() : "");
#else
                    tempContent.writeString("");
#endif
                    ++cnt;
                    // priority
                    tempContent.writeUnsignedByte(TYPE_UBYTE);
                    tempContent.writeUnsignedByte(link->havePriority() ? 1 : 0);
                    ++cnt;
                    // opened
                    tempContent.writeUnsignedByte(TYPE_UBYTE);
                    const SUMOReal speed = MIN2(lane->getSpeedLimit(), link->getLane()->getSpeedLimit());
                    tempContent.writeUnsignedByte(link->opened(currTime, speed, speed, DEFAULT_VEH_LENGTH, 0.0, DEFAULT_VEH_DECEL, 0) ? 1 : 0);
                    ++cnt;
                    // approaching foe
                    tempContent.writeUnsignedByte(TYPE_UBYTE);
                    tempContent.writeUnsignedByte(link->hasApproachingFoe(currTime, currTime, 0) ? 1 : 0);
                    ++cnt;
                    // state (not implemented, yet)
                    tempContent.writeUnsignedByte(TYPE_STRING);
                    tempContent.writeString(SUMOXMLDefinitions::LinkStates.getString(link->getState()));
                    ++cnt;
                    // direction
                    tempContent.writeUnsignedByte(TYPE_STRING);
                    tempContent.writeString(SUMOXMLDefinitions::LinkDirections.getString(link->getDirection()));
                    ++cnt;
                    // length
                    tempContent.writeUnsignedByte(TYPE_DOUBLE);
                    tempContent.writeDouble(link->getLength());
                    ++cnt;
                }
                tempMsg.writeInt((int) cnt);
                tempMsg.writeStorage(tempContent);
            }
            break;
            case LANE_ALLOWED: {
                tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
                SVCPermissions permissions = lane->getPermissions();
                if (permissions == SVCFreeForAll) {  // special case: write nothing
                    permissions = 0;
                }
                tempMsg.writeStringList(getAllowedVehicleClassNamesList(permissions));
            }
            case LANE_DISALLOWED: {
                tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
                tempMsg.writeStringList(getAllowedVehicleClassNamesList(~(lane->getPermissions()))); // negation yields disallowed
            }
            break;
            case VAR_SHAPE:
                tempMsg.writeUnsignedByte(TYPE_POLYGON);
                tempMsg.writeUnsignedByte((int)MIN2(static_cast<size_t>(255), lane->getShape().size()));
                for (unsigned int iPoint = 0; iPoint < MIN2(static_cast<size_t>(255), lane->getShape().size()); ++iPoint) {
                    tempMsg.writeDouble(lane->getShape()[iPoint].x());
                    tempMsg.writeDouble(lane->getShape()[iPoint].y());
                }
                break;
            case VAR_CO2EMISSION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getCO2Emissions());
                break;
            case VAR_COEMISSION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getCOEmissions());
                break;
            case VAR_HCEMISSION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getHCEmissions());
                break;
            case VAR_PMXEMISSION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getPMxEmissions());
                break;
            case VAR_NOXEMISSION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getNOxEmissions());
                break;
            case VAR_FUELCONSUMPTION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getFuelConsumption());
                break;
            case VAR_NOISEEMISSION:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getHarmonoise_NoiseEmissions());
                break;
            case LAST_STEP_VEHICLE_NUMBER:
                tempMsg.writeUnsignedByte(TYPE_INTEGER);
                tempMsg.writeInt((int) lane->getVehicleNumber());
                break;
            case LAST_STEP_MEAN_SPEED:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getMeanSpeed());
                break;
            case LAST_STEP_VEHICLE_ID_LIST: {
                std::vector<std::string> vehIDs;
                const MSLane::VehCont& vehs = lane->getVehiclesSecure();
                for (MSLane::VehCont::const_iterator j = vehs.begin(); j != vehs.end(); ++j) {
                    vehIDs.push_back((*j)->getID());
                }
                lane->releaseVehicles();
                tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
                tempMsg.writeStringList(vehIDs);
            }
            break;
            case LAST_STEP_OCCUPANCY:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getNettoOccupancy());
                break;
            case LAST_STEP_VEHICLE_HALTING_NUMBER: {
                int halting = 0;
                const MSLane::VehCont& vehs = lane->getVehiclesSecure();
                for (MSLane::VehCont::const_iterator j = vehs.begin(); j != vehs.end(); ++j) {
                    if ((*j)->getSpeed() < SUMO_const_haltingSpeed) {
                        ++halting;
                    }
                }
                lane->releaseVehicles();
                tempMsg.writeUnsignedByte(TYPE_INTEGER);
                tempMsg.writeInt(halting);
            }
            break;
            case LAST_STEP_LENGTH: {
                SUMOReal lengthSum = 0;
                const MSLane::VehCont& vehs = lane->getVehiclesSecure();
                for (MSLane::VehCont::const_iterator j = vehs.begin(); j != vehs.end(); ++j) {
                    lengthSum += (*j)->getVehicleType().getLength();
                }
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                if (vehs.size() == 0) {
                    tempMsg.writeDouble(0);
                } else {
                    tempMsg.writeDouble(lengthSum / (SUMOReal) vehs.size());
                }
                lane->releaseVehicles();
            }
            break;
            case VAR_WAITING_TIME: {
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getWaitingSeconds());
            }
            break;
            case VAR_CURRENT_TRAVELTIME: {
                SUMOReal meanSpeed = lane->getMeanSpeed();
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                if (meanSpeed != 0) {
                    tempMsg.writeDouble(lane->getLength() / meanSpeed);
                } else {
                    tempMsg.writeDouble(1000000.);
                }
            }
            break;
            case VAR_WIDTH:
                tempMsg.writeUnsignedByte(TYPE_DOUBLE);
                tempMsg.writeDouble(lane->getWidth());
                break;
            default:
                break;
        }
    }
    server.writeStatusCmd(CMD_GET_LANE_VARIABLE, RTYPE_OK, "", outputStorage);
    server.writeResponseWithLength(outputStorage, tempMsg);
    return true;
}