bool
TraCIServerAPI_Junction::getPosition(const std::string& id, Position& p) {
MSJunction* j = MSNet::getInstance()->getJunctionControl().get(id);
if (j == 0) {
return false;
}
p = j->getPosition();
return true;
}
// ===========================================================================
// method definitions
// ===========================================================================
bool
TraCIServerAPI_Junction::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 != VAR_POSITION && variable != ID_COUNT && variable != VAR_SHAPE) {
return server.writeErrorStatusCmd(CMD_GET_JUNCTION_VARIABLE, "Get Junction Variable: unsupported variable specified", outputStorage);
}
// begin response building
tcpip::Storage tempMsg;
// response-code, variableID, objectID
tempMsg.writeUnsignedByte(RESPONSE_GET_JUNCTION_VARIABLE);
tempMsg.writeUnsignedByte(variable);
tempMsg.writeString(id);
if (variable == ID_LIST) {
std::vector<std::string> ids;
MSNet::getInstance()->getJunctionControl().insertIDs(ids);
tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
tempMsg.writeStringList(ids);
} else if (variable == ID_COUNT) {
std::vector<std::string> ids;
MSNet::getInstance()->getJunctionControl().insertIDs(ids);
tempMsg.writeUnsignedByte(TYPE_INTEGER);
tempMsg.writeInt((int) ids.size());
} else {
MSJunction* j = MSNet::getInstance()->getJunctionControl().get(id);
if (j == 0) {
return server.writeErrorStatusCmd(CMD_GET_JUNCTION_VARIABLE, "Junction '" + id + "' is not known", outputStorage);
}
switch (variable) {
case ID_LIST:
break;
case VAR_POSITION:
tempMsg.writeUnsignedByte(POSITION_2D);
tempMsg.writeDouble(j->getPosition().x());
tempMsg.writeDouble(j->getPosition().y());
break;
case VAR_SHAPE:
tempMsg.writeUnsignedByte(TYPE_POLYGON);
tempMsg.writeUnsignedByte((int)MIN2(static_cast<size_t>(255), j->getShape().size()));
for (unsigned int iPoint = 0; iPoint < MIN2(static_cast<size_t>(255), j->getShape().size()); ++iPoint) {
tempMsg.writeDouble(j->getShape()[iPoint].x());
tempMsg.writeDouble(j->getShape()[iPoint].y());
}
break;
default:
break;
}
}
server.writeStatusCmd(CMD_GET_JUNCTION_VARIABLE, RTYPE_OK, "", outputStorage);
server.writeResponseWithLength(outputStorage, tempMsg);
return true;
}
