void
TraCIServer::writeResponseWithLength(tcpip::Storage& outputStorage, tcpip::Storage& tempMsg) {
if (tempMsg.size() < 254) {
outputStorage.writeUnsignedByte(1 + (int)tempMsg.size()); // command length -> short
} else {
outputStorage.writeUnsignedByte(0); // command length -> extended
outputStorage.writeInt(1 + 4 + (int)tempMsg.size());
}
outputStorage.writeStorage(tempMsg);
}
void
TraCIServer::writeStatusCmd(int commandId, int status, const std::string& description, tcpip::Storage& outputStorage) {
if (status == RTYPE_ERR) {
WRITE_ERROR("Answered with error to command " + toString(commandId) + ": " + description);
} else if (status == RTYPE_NOTIMPLEMENTED) {
WRITE_ERROR("Requested command not implemented (" + toString(commandId) + "): " + description);
}
outputStorage.writeUnsignedByte(1 + 1 + 1 + 4 + static_cast<int>(description.length())); // command length
outputStorage.writeUnsignedByte(commandId); // command type
outputStorage.writeUnsignedByte(status); // status
outputStorage.writeString(description); // description
}
// ---------- Conversion helper
int
SUMO_CLIENT::setValueTypeDependant(tcpip::Storage& into, std::ifstream& defFile, std::stringstream& msg) {
std::string dataTypeS;
defFile >> dataTypeS;
if (dataTypeS == "<airDist>") {
into.writeUnsignedByte(REQUEST_AIRDIST);
return 1;
} else if (dataTypeS == "<drivingDist>") {
into.writeUnsignedByte(REQUEST_DRIVINGDIST);
return 1;
} else if (dataTypeS == "<objSubscription>") {
int beginTime, endTime, numVars;
defFile >> beginTime >> endTime >> numVars;
into.writeInt(beginTime);
into.writeInt(endTime);
into.writeInt(numVars);
for (int i = 0; i < numVars; ++i) {
int var;
defFile >> var;
into.writeUnsignedByte(var);
}
return 4 + 4 + 4 + numVars;
}
void
TraCIServerAPI_Simulation::writeStage(tcpip::Storage& outputStorage, const libsumo::TraCIStage& stage) {
outputStorage.writeUnsignedByte(TYPE_COMPOUND);
outputStorage.writeInt(6);
outputStorage.writeUnsignedByte(TYPE_INTEGER);
outputStorage.writeInt(stage.type);
outputStorage.writeUnsignedByte(TYPE_STRING);
outputStorage.writeString(stage.line);
outputStorage.writeUnsignedByte(TYPE_STRING);
outputStorage.writeString(stage.destStop);
outputStorage.writeUnsignedByte(TYPE_STRINGLIST);
outputStorage.writeStringList(stage.edges);
outputStorage.writeUnsignedByte(TYPE_DOUBLE);
outputStorage.writeDouble(stage.travelTime);
outputStorage.writeUnsignedByte(TYPE_DOUBLE);
outputStorage.writeDouble(stage.cost);
outputStorage.writeUnsignedByte(TYPE_STRING);
outputStorage.writeString(stage.intended);
outputStorage.writeUnsignedByte(TYPE_DOUBLE);
outputStorage.writeDouble(stage.depart);
}
bool
TraCIServerAPI_Simulation::commandDistanceRequest(TraCIServer& server, tcpip::Storage& inputStorage,
tcpip::Storage& outputStorage, int commandId) {
Position pos1;
Position pos2;
std::pair<const MSLane*, SUMOReal> roadPos1;
std::pair<const MSLane*, SUMOReal> roadPos2;
// read position 1
int posType = inputStorage.readUnsignedByte();
switch (posType) {
case POSITION_ROADMAP:
try {
std::string roadID = inputStorage.readString();
roadPos1.second = inputStorage.readDouble();
roadPos1.first = getLaneChecking(roadID, inputStorage.readUnsignedByte(), roadPos1.second);
pos1 = roadPos1.first->getShape().positionAtOffset(roadPos1.second);
} catch (TraCIException& e) {
server.writeStatusCmd(commandId, RTYPE_ERR, e.what());
return false;
}
break;
case POSITION_2D:
case POSITION_3D: {
SUMOReal p1x = inputStorage.readDouble();
SUMOReal p1y = inputStorage.readDouble();
pos1.set(p1x, p1y);
}
if (posType == POSITION_3D) {
inputStorage.readDouble(); // z value is ignored
}
roadPos1 = convertCartesianToRoadMap(pos1);
break;
default:
server.writeStatusCmd(commandId, RTYPE_ERR, "Unknown position format used for distance request");
return false;
}
// read position 2
posType = inputStorage.readUnsignedByte();
switch (posType) {
case POSITION_ROADMAP:
try {
std::string roadID = inputStorage.readString();
roadPos2.second = inputStorage.readDouble();
roadPos2.first = getLaneChecking(roadID, inputStorage.readUnsignedByte(), roadPos2.second);
pos2 = roadPos2.first->getShape().positionAtOffset(roadPos2.second);
} catch (TraCIException& e) {
server.writeStatusCmd(commandId, RTYPE_ERR, e.what());
return false;
}
break;
case POSITION_2D:
case POSITION_3D: {
SUMOReal p2x = inputStorage.readDouble();
SUMOReal p2y = inputStorage.readDouble();
pos2.set(p2x, p2y);
}
if (posType == POSITION_3D) {
inputStorage.readDouble(); // z value is ignored
}
roadPos2 = convertCartesianToRoadMap(pos2);
break;
default:
server.writeStatusCmd(commandId, RTYPE_ERR, "Unknown position format used for distance request");
return false;
}
// read distance type
int distType = inputStorage.readUnsignedByte();
SUMOReal distance = 0.0;
if (distType == REQUEST_DRIVINGDIST) {
// compute driving distance
if ((roadPos1.first == roadPos2.first) && (roadPos1.second <= roadPos2.second)) {
// same edge
distance = roadPos2.second - roadPos1.second;
} else {
MSEdgeVector newRoute;
MSNet::getInstance()->getRouterTT().compute(
&roadPos1.first->getEdge(), &roadPos2.first->getEdge(), 0, MSNet::getInstance()->getCurrentTimeStep(), newRoute);
MSRoute route("", newRoute, false, 0, std::vector<SUMOVehicleParameter::Stop>());
distance = route.getDistanceBetween(roadPos1.second, roadPos2.second, &roadPos1.first->getEdge(), &roadPos2.first->getEdge());
}
} else {
// compute air distance (default)
distance = pos1.distanceTo(pos2);
}
// write response command
outputStorage.writeUnsignedByte(TYPE_DOUBLE);
outputStorage.writeDouble(distance);
return true;
}
bool
TraCIServerAPI_Simulation::commandPositionConversion(TraCIServer& server, tcpip::Storage& inputStorage,
tcpip::Storage& outputStorage, int commandId) {
std::pair<MSLane*, SUMOReal> roadPos;
Position cartesianPos;
Position geoPos;
SUMOReal z = 0;
// actual position type that will be converted
int srcPosType = inputStorage.readUnsignedByte();
switch (srcPosType) {
case POSITION_2D:
case POSITION_3D:
case POSITION_LON_LAT:
case POSITION_LON_LAT_ALT: {
SUMOReal x = inputStorage.readDouble();
SUMOReal y = inputStorage.readDouble();
if (srcPosType != POSITION_2D && srcPosType != POSITION_LON_LAT) {
z = inputStorage.readDouble();
}
geoPos.set(x, y);
cartesianPos.set(x, y);
if (srcPosType == POSITION_LON_LAT || srcPosType == POSITION_LON_LAT_ALT) {
GeoConvHelper::getFinal().x2cartesian_const(cartesianPos);
} else {
GeoConvHelper::getFinal().cartesian2geo(geoPos);
}
}
break;
case POSITION_ROADMAP: {
std::string roadID = inputStorage.readString();
SUMOReal pos = inputStorage.readDouble();
int laneIdx = inputStorage.readUnsignedByte();
try {
// convert edge,offset,laneIdx to cartesian position
cartesianPos = geoPos = getLaneChecking(roadID, laneIdx, pos)->getShape().positionAtOffset(pos);
z = cartesianPos.z();
GeoConvHelper::getFinal().cartesian2geo(geoPos);
} catch (TraCIException& e) {
server.writeStatusCmd(commandId, RTYPE_ERR, e.what());
return false;
}
}
break;
default:
server.writeStatusCmd(commandId, RTYPE_ERR, "Source position type not supported");
return false;
}
int destPosType = 0;
if (!server.readTypeCheckingUnsignedByte(inputStorage, destPosType)) {
server.writeStatusCmd(commandId, RTYPE_ERR, "Destination position type must be of type ubyte.");
return false;
}
switch (destPosType) {
case POSITION_ROADMAP: {
// convert cartesion position to edge,offset,lane_index
roadPos = convertCartesianToRoadMap(cartesianPos);
// write result that is added to response msg
outputStorage.writeUnsignedByte(POSITION_ROADMAP);
outputStorage.writeString(roadPos.first->getEdge().getID());
outputStorage.writeDouble(roadPos.second);
const std::vector<MSLane*> lanes = roadPos.first->getEdge().getLanes();
outputStorage.writeUnsignedByte((int)distance(lanes.begin(), find(lanes.begin(), lanes.end(), roadPos.first)));
}
break;
case POSITION_2D:
case POSITION_3D:
case POSITION_LON_LAT:
case POSITION_LON_LAT_ALT:
outputStorage.writeUnsignedByte(destPosType);
if (destPosType == POSITION_LON_LAT || destPosType == POSITION_LON_LAT_ALT) {
outputStorage.writeDouble(geoPos.x());
outputStorage.writeDouble(geoPos.y());
} else {
outputStorage.writeDouble(cartesianPos.x());
outputStorage.writeDouble(cartesianPos.y());
}
if (destPosType != POSITION_2D && destPosType != POSITION_LON_LAT) {
outputStorage.writeDouble(z);
}
break;
default:
server.writeStatusCmd(commandId, RTYPE_ERR, "Destination position type not supported");
return false;
}
return true;
}
void
TraCIServerAPI_Simulation::writeVehicleStateIDs(TraCIServer& server, tcpip::Storage& outputStorage, MSNet::VehicleState state) {
const std::vector<std::string>& ids = server.getVehicleStateChanges().find(state)->second;
outputStorage.writeUnsignedByte(TYPE_STRINGLIST);
outputStorage.writeStringList(ids);
}
void
TraCIServerAPI_Simulation::writeVehicleStateNumber(TraCIServer& server, tcpip::Storage& outputStorage, MSNet::VehicleState state) {
const std::vector<std::string>& ids = server.getVehicleStateChanges().find(state)->second;
outputStorage.writeUnsignedByte(TYPE_INTEGER);
outputStorage.writeInt((int) ids.size());
}
bool
TraCIServerAPI_VehicleType::getVariable(const int variable, const MSVehicleType& v, tcpip::Storage& tempMsg) {
switch (variable) {
case VAR_LENGTH:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getLength());
break;
case VAR_MINGAP:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getMinGap());
break;
case VAR_MAXSPEED:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getMaxSpeed());
break;
case VAR_ACCEL:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getCarFollowModel().getMaxAccel());
break;
case VAR_DECEL:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getCarFollowModel().getMaxDecel());
break;
case VAR_IMPERFECTION:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getCarFollowModel().getImperfection());
break;
case VAR_TAU:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getCarFollowModel().getHeadwayTime());
break;
case VAR_SPEED_FACTOR:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getSpeedFactor());
break;
case VAR_SPEED_DEVIATION:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getSpeedDeviation());
break;
case VAR_VEHICLECLASS:
tempMsg.writeUnsignedByte(TYPE_STRING);
tempMsg.writeString(toString(v.getVehicleClass()));
break;
case VAR_EMISSIONCLASS:
tempMsg.writeUnsignedByte(TYPE_STRING);
tempMsg.writeString(getVehicleEmissionTypeName(v.getEmissionClass()));
break;
case VAR_SHAPECLASS:
tempMsg.writeUnsignedByte(TYPE_STRING);
tempMsg.writeString(getVehicleShapeName(v.getGuiShape()));
break;
case VAR_WIDTH:
tempMsg.writeUnsignedByte(TYPE_DOUBLE);
tempMsg.writeDouble(v.getGuiWidth());
break;
case VAR_COLOR:
tempMsg.writeUnsignedByte(TYPE_COLOR);
tempMsg.writeUnsignedByte(static_cast<int>(v.getColor().red() * 255. + 0.5));
tempMsg.writeUnsignedByte(static_cast<int>(v.getColor().green() * 255. + 0.5));
tempMsg.writeUnsignedByte(static_cast<int>(v.getColor().blue() * 255. + 0.5));
tempMsg.writeUnsignedByte(255);
break;
default:
break;
}
return true;
}
bool
TraCIServer::processSingleSubscription(const Subscription& s, tcpip::Storage& writeInto,
std::string& errors) {
bool ok = true;
tcpip::Storage outputStorage;
const int getCommandId = s.contextVars ? s.contextDomain : s.commandId - 0x30;
std::set<std::string> objIDs;
if (s.contextVars) {
PositionVector shape;
if (!findObjectShape(s.commandId, s.id, shape)) {
return false;
}
collectObjectsInRange(s.contextDomain, shape, s.range, objIDs);
} else {
objIDs.insert(s.id);
}
const int numVars = s.contextVars && s.variables.size() == 1 && s.variables[0] == ID_LIST ? 0 : (int)s.variables.size();
for (std::set<std::string>::iterator j = objIDs.begin(); j != objIDs.end(); ++j) {
if (s.contextVars) {
outputStorage.writeString(*j);
}
if (numVars > 0) {
for (std::vector<int>::const_iterator i = s.variables.begin(); i != s.variables.end(); ++i) {
tcpip::Storage message;
message.writeUnsignedByte(*i);
message.writeString(*j);
tcpip::Storage tmpOutput;
if (myExecutors.find(getCommandId) != myExecutors.end()) {
ok &= myExecutors[getCommandId](*this, message, tmpOutput);
} else {
writeStatusCmd(s.commandId, RTYPE_NOTIMPLEMENTED, "Unsupported command specified", tmpOutput);
ok = false;
}
// copy response part
if (ok) {
int length = tmpOutput.readUnsignedByte();
while (--length > 0) {
tmpOutput.readUnsignedByte();
}
int lengthLength = 1;
length = tmpOutput.readUnsignedByte();
if (length == 0) {
lengthLength = 5;
length = tmpOutput.readInt();
}
//read responseType
tmpOutput.readUnsignedByte();
int variable = tmpOutput.readUnsignedByte();
std::string id = tmpOutput.readString();
outputStorage.writeUnsignedByte(variable);
outputStorage.writeUnsignedByte(RTYPE_OK);
length -= (lengthLength + 1 + 4 + (int)id.length());
while (--length > 0) {
outputStorage.writeUnsignedByte(tmpOutput.readUnsignedByte());
}
} else {
//read length
tmpOutput.readUnsignedByte();
//read cmd
tmpOutput.readUnsignedByte();
//read status
tmpOutput.readUnsignedByte();
std::string msg = tmpOutput.readString();
outputStorage.writeUnsignedByte(*i);
outputStorage.writeUnsignedByte(RTYPE_ERR);
outputStorage.writeUnsignedByte(TYPE_STRING);
outputStorage.writeString(msg);
errors = errors + msg;
}
}
}
}
unsigned int length = (1 + 4) + 1 + (4 + (int)(s.id.length())) + 1 + (int)outputStorage.size();
if (s.contextVars) {
length += 4;
}
writeInto.writeUnsignedByte(0); // command length -> extended
writeInto.writeInt(length);
writeInto.writeUnsignedByte(s.commandId + 0x10);
writeInto.writeString(s.id);
if (s.contextVars) {
writeInto.writeUnsignedByte(s.contextDomain);
}
writeInto.writeUnsignedByte(numVars);
if (s.contextVars) {
writeInto.writeInt((int)objIDs.size());
}
if (!s.contextVars || objIDs.size() != 0) {
writeInto.writeStorage(outputStorage);
}
return ok;
}
// ===========================================================================
// method definitions
// ===========================================================================
bool
TraCIServerAPI_Lane::processGet(TraCIServer &server, tcpip::Storage &inputStorage,
tcpip::Storage &outputStorage) {
Storage tmpResult;
std::string warning = ""; // additional description for response
// 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!=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) {
server.writeStatusCmd(CMD_GET_LANE_VARIABLE, RTYPE_ERR, "Get Lane Variable: unsupported variable specified", outputStorage);
return false;
}
// begin response building
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 {
MSLane *lane = MSLane::dictionary(id);
if (lane==0) {
server.writeStatusCmd(CMD_GET_LANE_VARIABLE, RTYPE_ERR, "Lane '" + id + "' is not known", outputStorage);
return false;
}
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_FLOAT);
tempMsg.writeFloat(lane->getLength());
break;
case VAR_MAXSPEED:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getMaxSpeed());
break;
case LANE_LINKS: {
tempMsg.writeUnsignedByte(TYPE_COMPOUND);
Storage tempContent;
unsigned int cnt = 0;
tempContent.writeUnsignedByte(TYPE_INTEGER);
const MSLinkCont &links = lane->getLinkCont();
tempContent.writeInt((int) links.size());
++cnt;
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);
tempContent.writeUnsignedByte(link->opened(MSNet::getInstance()->getCurrentTimeStep(), MSNet::getInstance()->getCurrentTimeStep(), 0.) ? 1 : 0);
++cnt;
// approaching foe
tempContent.writeUnsignedByte(TYPE_UBYTE);
tempContent.writeUnsignedByte(link->hasApproachingFoe(MSNet::getInstance()->getCurrentTimeStep(), MSNet::getInstance()->getCurrentTimeStep()) ? 1 : 0);
++cnt;
// state (not implemented, yet)
tempContent.writeUnsignedByte(TYPE_STRING);
tempContent.writeString("");
++cnt;
// direction (not implemented, yet)
tempContent.writeUnsignedByte(TYPE_STRING);
tempContent.writeString("");
++cnt;
// length
tempContent.writeUnsignedByte(TYPE_FLOAT);
tempContent.writeFloat(link->getLength());
++cnt;
}
tempMsg.writeInt((int) cnt);
tempMsg.writeStorage(tempContent);
}
break;
case LANE_ALLOWED: {
const std::vector<SUMOVehicleClass> &allowed = lane->getAllowedClasses();
std::vector<std::string> allowedS;
for (std::vector<SUMOVehicleClass>::const_iterator i=allowed.begin(); i!=allowed.end(); ++i) {
allowedS.push_back(getVehicleClassName(*i));
}
tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
tempMsg.writeStringList(allowedS);
}
case LANE_DISALLOWED: {
const std::vector<SUMOVehicleClass> &disallowed = lane->getNotAllowedClasses();
std::vector<std::string> disallowedS;
for (std::vector<SUMOVehicleClass>::const_iterator i=disallowed.begin(); i!=disallowed.end(); ++i) {
disallowedS.push_back(getVehicleClassName(*i));
}
tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
tempMsg.writeStringList(disallowedS);
}
break;
case VAR_SHAPE:
tempMsg.writeUnsignedByte(TYPE_POLYGON);
tempMsg.writeUnsignedByte(MIN2(static_cast<size_t>(255),lane->getShape().size()));
for (int iPoint=0; iPoint < MIN2(static_cast<size_t>(255),lane->getShape().size()); ++iPoint) {
tempMsg.writeFloat(lane->getShape()[iPoint].x());
tempMsg.writeFloat(lane->getShape()[iPoint].y());
}
break;
case VAR_CO2EMISSION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getHBEFA_CO2Emissions());
break;
case VAR_COEMISSION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getHBEFA_COEmissions());
break;
case VAR_HCEMISSION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getHBEFA_HCEmissions());
break;
case VAR_PMXEMISSION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getHBEFA_PMxEmissions());
break;
case VAR_NOXEMISSION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getHBEFA_NOxEmissions());
break;
case VAR_FUELCONSUMPTION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(lane->getHBEFA_FuelConsumption());
break;
case VAR_NOISEEMISSION:
tempMsg.writeUnsignedByte(TYPE_FLOAT);
tempMsg.writeFloat(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_FLOAT);
tempMsg.writeFloat(lane->getMeanSpeed());
break;
case LAST_STEP_VEHICLE_ID_LIST: {
std::vector<std::string> vehIDs;
const std::deque<MSVehicle*> &vehs = lane->getVehiclesSecure();
for (std::deque<MSVehicle*>::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_FLOAT);
tempMsg.writeFloat(lane->getOccupancy());
break;
case LAST_STEP_VEHICLE_HALTING_NUMBER: {
int halting = 0;
const std::deque<MSVehicle*> &vehs = lane->getVehiclesSecure();
for (std::deque<MSVehicle*>::const_iterator j=vehs.begin(); j!=vehs.end(); ++j) {
if ((*j)->getSpeed()<0.1) {
++halting;
}
}
lane->releaseVehicles();
tempMsg.writeUnsignedByte(TYPE_INTEGER);
tempMsg.writeInt(halting);
}
break;
case LAST_STEP_LENGTH: {
SUMOReal lengthSum = 0;
const std::deque<MSVehicle*> &vehs = lane->getVehiclesSecure();
for (std::deque<MSVehicle*>::const_iterator j=vehs.begin(); j!=vehs.end(); ++j) {
lengthSum += (*j)->getVehicleType().getLength();
}
tempMsg.writeUnsignedByte(TYPE_FLOAT);
if (vehs.size()==0) {
tempMsg.writeFloat(0);
} else {
tempMsg.writeFloat(lengthSum / (SUMOReal) vehs.size());
}
lane->releaseVehicles();
}
break;
case VAR_CURRENT_TRAVELTIME: {
SUMOReal meanSpeed = lane->getMeanSpeed();
tempMsg.writeUnsignedByte(TYPE_FLOAT);
if (meanSpeed!=0) {
tempMsg.writeFloat(lane->getLength() / meanSpeed);
} else {
tempMsg.writeFloat(1000000.);
}
}
break;
default:
break;
}
}
server.writeStatusCmd(CMD_GET_LANE_VARIABLE, RTYPE_OK, warning, outputStorage);
// send response
outputStorage.writeUnsignedByte(0); // command length -> extended
outputStorage.writeInt(1 + 4 + tempMsg.size());
outputStorage.writeStorage(tempMsg);
return true;
}