C++ SUMOSAXAttributes类代码示例

void
MSLaneSpeedTrigger::myStartElement(int element,
                                   const SUMOSAXAttributes& attrs) {
    // check whether the correct tag is read
    if (element != SUMO_TAG_STEP) {
        return;
    }
    // extract the values
    bool ok = true;
    SUMOTime next = attrs.getSUMOTimeReporting(SUMO_ATTR_TIME, getID().c_str(), ok);
    SUMOReal speed = attrs.getOptSUMORealReporting(SUMO_ATTR_SPEED, getID().c_str(), ok, -1);
    // check the values
    if (next < 0) {
        WRITE_ERROR("Wrong time in vss '" + getID() + "'.");
        return;
    }
    if (speed < 0) {
        WRITE_ERROR("Wrong speed in vss '" + getID() + "'.");
        return;
    }
    // set the values for the next step if they are valid
    if (myLoadedSpeeds.size() != 0 && myLoadedSpeeds.back().first == next) {
        WRITE_WARNING("Time " + time2string(next) + " was set twice for vss '" + getID() + "'; replacing first entry.");
        myLoadedSpeeds.back().second = speed;
    } else {
        myLoadedSpeeds.push_back(std::make_pair(next, speed));
    }
}

void
MSRouteHandler::openRouteDistribution(const SUMOSAXAttributes& attrs) {
    // check whether the id is really necessary
    bool ok = true;
    if (myVehicleParameter != 0) {
        // ok, a vehicle is wrapping the route,
        //  we may use this vehicle's id as default
        myCurrentRouteDistributionID = "!" + myVehicleParameter->id; // !!! document this
    } else {
        myCurrentRouteDistributionID = attrs.getStringReporting(SUMO_ATTR_ID, 0, ok);
        if (!ok) {
            return;
        }
    }
    myCurrentRouteDistribution = new RandomDistributor<const MSRoute*>();
    if (attrs.hasAttribute(SUMO_ATTR_ROUTES)) {
        bool ok = true;
        StringTokenizer st(attrs.getStringReporting(SUMO_ATTR_ROUTES, myCurrentRouteDistributionID.c_str(), ok));
        while (st.hasNext()) {
            std::string routeID = st.next();
            const MSRoute* route = MSRoute::dictionary(routeID);
            if (route == 0) {
                throw ProcessError("Unknown route '" + routeID + "' in distribution '" + myCurrentRouteDistributionID + "'.");
            }
            myCurrentRouteDistribution->add(1., route, false);
        }
    }
}

void
NLDiscreteEventBuilder::buildSaveTLStateCommand(const SUMOSAXAttributes& attrs,
        const std::string& basePath) {
    bool ok = true;
    const std::string dest = attrs.getOptStringReporting(SUMO_ATTR_DEST, 0, ok, "");
    const std::string source = attrs.getOptStringReporting(SUMO_ATTR_SOURCE, 0, ok, "");
    // check the parameter
    if (dest == "" || !ok) {
        throw InvalidArgument("Incomplete description of an 'SaveTLSState'-action occured.");
    }
    if (source == "") {
        const std::vector<std::string> ids = myNet.getTLSControl().getAllTLIds();
        for (std::vector<std::string>::const_iterator tls = ids.begin(); tls != ids.end(); ++tls) {
            const MSTLLogicControl::TLSLogicVariants& logics = myNet.getTLSControl().get(*tls);
            new Command_SaveTLSState(logics, OutputDevice::getDevice(dest, basePath));
        }
    } else {
        // get the logic
        if (!myNet.getTLSControl().knows(source)) {
            throw InvalidArgument("The traffic light logic to save (" + source +  ") is not known.");
        }
        const MSTLLogicControl::TLSLogicVariants& logics = myNet.getTLSControl().get(source);
        // build the action
        new Command_SaveTLSState(logics, OutputDevice::getDevice(dest, basePath));
    }
}

void
NLTriggerBuilder::buildVaporizer(const SUMOSAXAttributes& attrs) {
    bool ok = true;
    // get the id, throw if not given or empty...
    std::string id = attrs.get<std::string>(SUMO_ATTR_ID, 0, ok);
    if (!ok) {
        return;
    }
    MSEdge* e = MSEdge::dictionary(id);
    if (e == 0) {
        WRITE_ERROR("Unknown edge ('" + id + "') referenced in a vaporizer.");
        return;
    }
    SUMOTime begin = attrs.getSUMOTimeReporting(SUMO_ATTR_BEGIN, 0, ok);
    SUMOTime end = attrs.getSUMOTimeReporting(SUMO_ATTR_END, 0, ok);
    if (!ok) {
        return;
    }
    if (begin < 0) {
        WRITE_ERROR("A vaporization begin time is negative (edge id='" + id + "').");
        return;
    }
    if (begin >= end) {
        WRITE_ERROR("A vaporization ends before it starts (edge id='" + id + "').");
        return;
    }
    if (end >= string2time(OptionsCont::getOptions().getString("begin"))) {
        Command* cb = new WrappingCommand< MSEdge >(e, &MSEdge::incVaporization);
        MSNet::getInstance()->getBeginOfTimestepEvents().addEvent(cb, begin, MSEventControl::ADAPT_AFTER_EXECUTION);
        Command* ce = new WrappingCommand< MSEdge >(e, &MSEdge::decVaporization);
        MSNet::getInstance()->getBeginOfTimestepEvents().addEvent(ce, end, MSEventControl::ADAPT_AFTER_EXECUTION);
    }
}

void
NLHandler::addEdgeLaneMeanData(const SUMOSAXAttributes& attrs, int objecttype) {
    bool ok = true;
    std::string id = attrs.get<std::string>(SUMO_ATTR_ID, 0, ok);
    const SUMOReal maxTravelTime = attrs.getOpt<SUMOReal>(SUMO_ATTR_MAX_TRAVELTIME, id.c_str(), ok, 100000);
    const SUMOReal minSamples = attrs.getOpt<SUMOReal>(SUMO_ATTR_MIN_SAMPLES, id.c_str(), ok, 0);
    const SUMOReal haltingSpeedThreshold = attrs.getOpt<SUMOReal>(SUMO_ATTR_HALTING_SPEED_THRESHOLD, id.c_str(), ok, POSITION_EPS);
    const std::string excludeEmpty = attrs.getOpt<std::string>(SUMO_ATTR_EXCLUDE_EMPTY, id.c_str(), ok, "false");
    const bool withInternal = attrs.getOpt<bool>(SUMO_ATTR_WITH_INTERNAL, id.c_str(), ok, false);
    const bool trackVehicles = attrs.getOpt<bool>(SUMO_ATTR_TRACK_VEHICLES, id.c_str(), ok, false);
    const std::string file = attrs.get<std::string>(SUMO_ATTR_FILE, id.c_str(), ok);
    const std::string type = attrs.getOpt<std::string>(SUMO_ATTR_TYPE, id.c_str(), ok, "performance");
    std::string vtypes = attrs.getOpt<std::string>(SUMO_ATTR_VTYPES, id.c_str(), ok, "");
    const SUMOTime frequency = attrs.getOptSUMOTimeReporting(SUMO_ATTR_FREQUENCY, id.c_str(), ok, -1);
    const SUMOTime begin = attrs.getOptSUMOTimeReporting(SUMO_ATTR_BEGIN, id.c_str(), ok, string2time(OptionsCont::getOptions().getString("begin")));
    const SUMOTime end = attrs.getOptSUMOTimeReporting(SUMO_ATTR_END, id.c_str(), ok, string2time(OptionsCont::getOptions().getString("end")));
    if (!ok) {
        return;
    }
    try {
        myDetectorBuilder.createEdgeLaneMeanData(id, frequency, begin, end,
                type, objecttype == SUMO_TAG_MEANDATA_LANE,
                // equivalent to TplConvert::_2bool used in SUMOSAXAttributes::getBool
                excludeEmpty[0] != 't' && excludeEmpty[0] != 'T' && excludeEmpty[0] != '1' && excludeEmpty[0] != 'x',
                excludeEmpty == "defaults", withInternal, trackVehicles,
                maxTravelTime, minSamples, haltingSpeedThreshold, vtypes,
                FileHelpers::checkForRelativity(file, getFileName()));
    } catch (InvalidArgument& e) {
        WRITE_ERROR(e.what());
    } catch (IOError& e) {
        WRITE_ERROR(e.what());
    }
}

void
NIImporter_SUMO::addJunction(const SUMOSAXAttributes &attrs) {
    // get the id, report an error if not given or empty...
    std::string id;
    if (!attrs.setIDFromAttributes("junction", id)) {
        return;
    }
    if (id[0]==':') {
        return;
    }
    bool ok = true;
    SUMOReal x = attrs.getOptSUMORealReporting(SUMO_ATTR_X, "junction", id.c_str(), ok, -1);
    SUMOReal y = attrs.getOptSUMORealReporting(SUMO_ATTR_Y, "junction", id.c_str(), ok, -1);
    // !!! this is too simplified! A proper error check should be done
    if (x==-1||y==-1) {
        MsgHandler::getErrorInstance()->inform("Junction '" + id + "' has an invalid position.");
        return;
    }
    Position2D pos(x, y);
    if (!GeoConvHelper::x2cartesian(pos)) {
        MsgHandler::getErrorInstance()->inform("Unable to project coordinates for junction " + id + ".");
        return;
    }
    NBNode *node = new NBNode(id, pos);
    if (!myNodeCont.insert(node)) {
        MsgHandler::getErrorInstance()->inform("Problems on adding junction '" + id + "'.");
        delete node;
        return;
    }
}

void
NIXMLTrafficLightsHandler::removeTlConnection(const SUMOSAXAttributes& attrs) {
    bool ok = true;
    std::string tlID = attrs.getStringReporting(SUMO_ATTR_TLID, 0, ok);
    // does the traffic light still exist?
    const std::map<std::string, NBTrafficLightDefinition*>& programs = myTLLCont.getPrograms(tlID);
    if (programs.size() > 0) {
        // parse identifying attributes
        NBEdge* from = retrieveEdge(attrs, SUMO_ATTR_FROM, ok);
        NBEdge* to = retrieveEdge(attrs, SUMO_ATTR_TO, ok);
        if (!ok) {
            return;
        }
        int fromLane = retrieveLaneIndex(attrs, SUMO_ATTR_FROM_LANE, from, ok);
        int toLane = retrieveLaneIndex(attrs, SUMO_ATTR_TO_LANE, to, ok);
        if (!ok) {
            return;
        }
        int tlIndex = attrs.getIntReporting(SUMO_ATTR_TLLINKINDEX, 0, ok);

        NBConnection conn(from, fromLane, to, toLane, tlIndex);
        // remove the connection from all definitions
        std::map<std::string, NBTrafficLightDefinition*>::const_iterator it;
        for (it = programs.begin(); it != programs.end(); it++) {
            NBLoadedSUMOTLDef* tlDef = dynamic_cast<NBLoadedSUMOTLDef*>(it->second);
            if (tlDef) {
                tlDef->removeConnection(conn, false);
            } else {
                throw ProcessError("Corrupt traffic light definition '"
                                   + tlID + "' (program '" + it->first + "')");
            }
        }
    }
}

void
RONetHandler::parseDistrict(const SUMOSAXAttributes& attrs) {
    myCurrentEdge = 0;
    bool ok = true;
    myCurrentName = attrs.get<std::string>(SUMO_ATTR_ID, 0, ok);
    if (!ok) {
        return;
    }
    ROEdge* sink = myEdgeBuilder.buildEdge(myCurrentName + "-sink", 0, 0, 0);
    sink->setType(ROEdge::ET_DISTRICT);
    myNet.addEdge(sink);
    ROEdge* source = myEdgeBuilder.buildEdge(myCurrentName + "-source", 0, 0, 0);
    source->setType(ROEdge::ET_DISTRICT);
    myNet.addEdge(source);
    if (attrs.hasAttribute(SUMO_ATTR_EDGES)) {
        std::vector<std::string> desc = attrs.getStringVector(SUMO_ATTR_EDGES);
        for (std::vector<std::string>::const_iterator i = desc.begin(); i != desc.end(); ++i) {
            ROEdge* edge = myNet.getEdge(*i);
            // check whether the edge exists
            if (edge == 0) {
                throw ProcessError("The edge '" + *i + "' within district '" + myCurrentName + "' is not known.");
            }
            source->addFollower(edge);
            edge->addFollower(sink);
        }
    }
}

void
AGActivityGenHandler::parseStreets(const SUMOSAXAttributes& attrs) {
    try {
        SUMOReal pop = 0;
        SUMOReal work = 0;

        if (attrs.hasAttribute(AGEN_ATTR_POPULATION)) {
            pop = attrs.getFloat(AGEN_ATTR_POPULATION);
        }
        if (attrs.hasAttribute(AGEN_ATTR_OUT_WORKPOSITION)) {
            work = attrs.getFloat(AGEN_ATTR_OUT_WORKPOSITION);
        }
        std::string eid = attrs.getString(SUMO_ATTR_EDGE);
        AGStreet* street = dynamic_cast<AGStreet*>(net->getEdge(eid));
        if (street == 0) {
            WRITE_ERROR("Edge '" + eid + "' is not known.");
            return;
        }
        street->setPopulation(pop * street->getLength());
        street->setWorkplaceNumber(work * street->getLength());
        myCity.streets.push_back(street);
    } catch (const std::exception& e) {
        WRITE_ERROR("Error while parsing the element " +
                    SUMOXMLDefinitions::Tags.getString(AGEN_TAG_STREET) + ": " +
                    e.what());
        throw ProcessError();
    }
}

bool
NIXMLEdgesHandler::setNodes(const SUMOSAXAttributes &attrs) throw() {
    // the names and the coordinates of the beginning and the end node
    // may be found, try
    bool ok = true;
    std::string begNodeID = myIsUpdate ? myCurrentEdge->getFromNode()->getID() : "";
    std::string endNodeID = myIsUpdate ? myCurrentEdge->getToNode()->getID() : "";
    begNodeID = attrs.hasAttribute(SUMO_ATTR_FROMNODE) ? attrs.getStringReporting(SUMO_ATTR_FROMNODE, "edge", 0, ok) : begNodeID;
    endNodeID = attrs.hasAttribute(SUMO_ATTR_TONODE) ? attrs.getStringReporting(SUMO_ATTR_TONODE, "edge", 0, ok) : endNodeID;
    if (!ok) {
        return false;
    }
    // or their positions !!! deprecated
    SUMOReal begNodeXPos = tryGetPosition(attrs, SUMO_ATTR_XFROM, "XFrom");
    SUMOReal begNodeYPos = tryGetPosition(attrs, SUMO_ATTR_YFROM, "YFrom");
    SUMOReal endNodeXPos = tryGetPosition(attrs, SUMO_ATTR_XTO, "XTo");
    SUMOReal endNodeYPos = tryGetPosition(attrs, SUMO_ATTR_YTO, "YTo");
    if (begNodeXPos!=SUMOXML_INVALID_POSITION&&begNodeYPos!=SUMOXML_INVALID_POSITION) {
        Position2D pos(begNodeXPos, begNodeYPos);
        GeoConvHelper::x2cartesian(pos);
        begNodeXPos = pos.x();
        begNodeYPos = pos.y();
    }
    if (endNodeXPos!=SUMOXML_INVALID_POSITION&&endNodeYPos!=SUMOXML_INVALID_POSITION) {
        Position2D pos(endNodeXPos, endNodeYPos);
        GeoConvHelper::x2cartesian(pos);
        endNodeXPos = pos.x();
        endNodeYPos = pos.y();
    }
    // check the obtained values for nodes
    myFromNode = insertNodeChecking(Position2D(begNodeXPos, begNodeYPos), begNodeID, "from");
    myToNode = insertNodeChecking(Position2D(endNodeXPos, endNodeYPos), endNodeID, "to");
    return myFromNode!=0&&myToNode!=0;
}

void
NIImporter_SUMO::addLane(const SUMOSAXAttributes& attrs) {
    bool ok = true;
    std::string id = attrs.getStringReporting(SUMO_ATTR_ID, 0, ok);
    if (!ok) {
        return;
    }
    if (!myCurrentEdge) {
        WRITE_ERROR("Found lane '" + id  + "' not within edge element");
        return;
    }
    myCurrentLane = new LaneAttrs;
    if (myCurrentEdge->func == toString(EDGEFUNC_INTERNAL)) {
        return; // skip internal lanes
    }
    if (attrs.hasAttribute(SUMO_ATTR_MAXSPEED__DEPRECATED)) {
        myCurrentLane->maxSpeed = attrs.getSUMORealReporting(SUMO_ATTR_MAXSPEED__DEPRECATED, id.c_str(), ok);
        if (!myHaveWarnedAboutDeprecatedMaxSpeed) {
            myHaveWarnedAboutDeprecatedMaxSpeed = true;
            WRITE_WARNING("'" + toString(SUMO_ATTR_MAXSPEED__DEPRECATED) + "' is deprecated, please use '" + toString(SUMO_ATTR_SPEED) + "' instead.");
        }
    } else {
        myCurrentLane->maxSpeed = attrs.getSUMORealReporting(SUMO_ATTR_SPEED, id.c_str(), ok);
    }
    myCurrentLane->allow = attrs.getOptStringReporting(SUMO_ATTR_ALLOW, id.c_str(), ok, "");
    myCurrentLane->disallow = attrs.getOptStringReporting(SUMO_ATTR_DISALLOW, id.c_str(), ok, "");
    myCurrentLane->width = attrs.getOptSUMORealReporting(SUMO_ATTR_WIDTH, id.c_str(), ok, (SUMOReal) NBEdge::UNSPECIFIED_WIDTH);
    myCurrentLane->offset = attrs.getOptSUMORealReporting(SUMO_ATTR_ENDOFFSET, id.c_str(), ok, (SUMOReal) NBEdge::UNSPECIFIED_OFFSET);
    myCurrentLane->shape = GeomConvHelper::parseShapeReporting(
                               attrs.getStringReporting(SUMO_ATTR_SHAPE, id.c_str(), ok),
                               attrs.getObjectType(), id.c_str(), ok, false);
    // lane coordinates are derived (via lane spread) do not include them in convex boundary
    NILoader::transformCoordinates(myCurrentLane->shape, false, myLocation);
}

void
NIImporter_SUMO::addRoundabout(const SUMOSAXAttributes& attrs) {
    if (attrs.hasAttribute(SUMO_ATTR_EDGES)) {
        myRoundabouts.push_back(attrs.getStringVector(SUMO_ATTR_EDGES));
    } else {
        WRITE_ERROR("Empty edges in roundabout.");
    }
}

void
SUMORouteHandler::myStartElement(int element,
                                 const SUMOSAXAttributes& attrs) {
    switch (element) {
        case SUMO_TAG_VEHICLE:
            delete myVehicleParameter;
            myVehicleParameter = SUMOVehicleParserHelper::parseVehicleAttributes(attrs);
            break;
        case SUMO_TAG_PERSON:
            delete myVehicleParameter;
            myVehicleParameter = SUMOVehicleParserHelper::parseVehicleAttributes(attrs, false, false, true);
            break;
        case SUMO_TAG_CONTAINER:
            delete myVehicleParameter;
            myVehicleParameter = SUMOVehicleParserHelper::parseVehicleAttributes(attrs);
            break;
        case SUMO_TAG_FLOW:
            delete myVehicleParameter;
            myVehicleParameter = SUMOVehicleParserHelper::parseFlowAttributes(attrs, myBeginDefault, myEndDefault);
            break;
        case SUMO_TAG_VTYPE:
            myCurrentVType = SUMOVehicleParserHelper::beginVTypeParsing(attrs, getFileName());
            break;
        case SUMO_TAG_VTYPE_DISTRIBUTION:
            openVehicleTypeDistribution(attrs);
            break;
        case SUMO_TAG_ROUTE:
            openRoute(attrs);
            break;
        case SUMO_TAG_ROUTE_DISTRIBUTION:
            openRouteDistribution(attrs);
            break;
        case SUMO_TAG_STOP:
            addStop(attrs);
            break;
        case SUMO_TAG_TRIP: {
            myVehicleParameter = SUMOVehicleParserHelper::parseVehicleAttributes(attrs, true);
            if (myVehicleParameter->id == "") {
                //@todo warn about deprecation of missing trip ids
                myVehicleParameter->id = myIdSupplier.getNext();
            }
            myVehicleParameter->setParameter |= VEHPARS_FORCE_REROUTE;
            myActiveRouteID = "!" + myVehicleParameter->id;
            break;
        }
        case SUMO_TAG_INTERVAL: {
            bool ok;
            myBeginDefault = attrs.getSUMOTimeReporting(SUMO_ATTR_BEGIN, 0, ok);
            myEndDefault = attrs.getSUMOTimeReporting(SUMO_ATTR_END, 0, ok);
            break;
        }
        case SUMO_TAG_PARAM:
            addParam(attrs);
            break;
        default:
            break;
    }
}

void NIXMLEdgesHandler::addSplit(const SUMOSAXAttributes& attrs) {
    if (myCurrentEdge == 0) {
        if (!OptionsCont::getOptions().isInStringVector("remove-edges.explicit", myCurrentID)) {
            WRITE_WARNING("Ignoring 'split' because it cannot be assigned to an edge");
        }
        return;
    }
    bool ok = true;
    Split e;
    e.pos = attrs.get<SUMOReal>(SUMO_ATTR_POSITION, 0, ok);
    if (ok) {
        if (fabs(e.pos) > myCurrentEdge->getGeometry().length()) {
            WRITE_ERROR("Edge '" + myCurrentID + "' has a split at invalid position " + toString(e.pos) + ".");
            return;
        }
        std::vector<Split>::iterator i = find_if(mySplits.begin(), mySplits.end(), split_by_pos_finder(e.pos));
        if (i != mySplits.end()) {
            WRITE_ERROR("Edge '" + myCurrentID + "' has already a split at position " + toString(e.pos) + ".");
            return;
        }
        const std::string nameid = toString((int)e.pos);
        if (e.pos < 0) {
            e.pos += myCurrentEdge->getGeometry().length();
        }
        std::vector<std::string> lanes;
        SUMOSAXAttributes::parseStringVector(attrs.getOpt<std::string>(SUMO_ATTR_LANES, 0, ok, ""), lanes);
        for (std::vector<std::string>::iterator i = lanes.begin(); i != lanes.end(); ++i) {
            try {
                int lane = TplConvert::_2int((*i).c_str());
                e.lanes.push_back(lane);
            } catch (NumberFormatException&) {
                WRITE_ERROR("Error on parsing a split (edge '" + myCurrentID + "').");
            } catch (EmptyData&) {
                WRITE_ERROR("Error on parsing a split (edge '" + myCurrentID + "').");
            }
        }
        if (e.lanes.empty()) {
            for (int l = 0; l < myCurrentEdge->getNumLanes(); ++l) {
                e.lanes.push_back(l);
            }
        }
        e.speed = attrs.getOpt(SUMO_ATTR_SPEED, 0, ok, myCurrentEdge->getSpeed());
        if (attrs.hasAttribute(SUMO_ATTR_SPEED) && myOptions.getBool("speed-in-kmh")) {
            e.speed /= (SUMOReal) 3.6;
        }
        e.idBefore = attrs.getOpt(SUMO_ATTR_ID_BEFORE, 0, ok, std::string(""));
        e.idAfter = attrs.getOpt(SUMO_ATTR_ID_AFTER, 0, ok, std::string(""));
        if (!ok) {
            return;
        }
        e.node = new NBNode(myCurrentID + "." + nameid,
                            myCurrentEdge->getGeometry().positionAtOffset(e.pos));
        NIXMLNodesHandler::processNodeType(attrs, e.node, e.node->getID(), e.node->getPosition(), false,
                                           myNodeCont, myTLLogicCont);
        mySplits.push_back(e);
    }
}

GUIVisualizationSizeSettings
GUISettingsHandler::parseSizeSettings(
    const std::string& prefix, const SUMOSAXAttributes& attrs,
    GUIVisualizationSizeSettings defaults) {
    return GUIVisualizationSizeSettings(
               TplConvert::_2SUMOReal(attrs.getStringSecure(prefix + "_minSize", toString(defaults.minSize)).c_str()),
               TplConvert::_2SUMOReal(attrs.getStringSecure(prefix + "_exaggeration", toString(defaults.exaggeration)).c_str()),
               TplConvert::_2bool(attrs.getStringSecure(prefix + "_constantSize", toString(defaults.constantSize)).c_str()));
}