MSStateHandler.h

Go to the documentation of this file.

/****************************************************************************/
// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
// Copyright (C) 2012-2024 German Aerospace Center (DLR) and others.
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0/
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License 2.0 are satisfied: GNU General Public License, version 2
// or later which is available at
// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
/****************************************************************************/
// Parser and output filter for routes and vehicles state saving and loading
/****************************************************************************/
#pragma once
#include <config.h>
 
#include <utils/common/SUMOTime.h>
#include "MSRouteHandler.h"
 
 
// ===========================================================================
// class declarations
// ===========================================================================
class MESegment;
class MSRailSignal;
 
 
// ===========================================================================
// class definitions
// ===========================================================================
class MSStateHandler : public MSRouteHandler {
public:
    MSStateHandler(const std::string& file, const SUMOTime offset);
 
    virtual ~MSStateHandler();
 
    static void saveState(const std::string& file, SUMOTime step, bool usePrefix = true);
 
    SUMOTime getTime() const {
        return myTime;
    }
 
    class MSStateTimeHandler : public SUMOSAXHandler {
    public:
        static SUMOTime getTime(const std::string& fileName);
 
    protected:
        void myStartElement(int element, const SUMOSAXAttributes& attrs);
        SUMOTime myTime;
    };
 
protected:
 
 
    void myStartElement(int element,
                        const SUMOSAXAttributes& attrs);
 
    void myEndElement(int element);
 
    void closeVehicle();
 
private:
    const SUMOTime myOffset;
 
    SUMOTime myTime;
 
    MESegment* mySegment;
 
    MSLane* myCurrentLane;
 
    MSLink* myCurrentLink;
 
    int myQueIndex;
 
    SUMOSAXAttributes* myAttrs;
 
    SUMOSAXAttributes* myVCAttrs;
 
    std::vector<SUMOSAXAttributes*> myDeviceAttrs;
 
    Parameterised* myLastParameterised;
 
    std::set<std::string> myVehiclesToRemove;
 
    int myRemoved;
 
    MSRailSignal* myConstrainedSignal;
 
private:
    static void saveRNGs(OutputDevice& out);
 
private:
    MSStateHandler(const MSStateHandler& s) = delete;
 
    MSStateHandler& operator=(const MSStateHandler& s) = delete;
};