TraCIServerAPI_Junction.cpp

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/****************************************************************************/
// APIs for getting/setting junction values via TraCI
/****************************************************************************/
// SUMO, Simulation of Urban MObility; see http://sumo.dlr.de/
// Copyright (C) 2009-2017 DLR (http://www.dlr.de/) and contributors
/****************************************************************************/
//
//   This file is part of SUMO.
//   SUMO is free software: you can redistribute it and/or modify
//   it under the terms of the GNU General Public License as published by
//   the Free Software Foundation, either version 3 of the License, or
//   (at your option) any later version.
//
/****************************************************************************/


// ===========================================================================
// included modules
// ===========================================================================
#ifdef _MSC_VER
#include <windows_config.h>
#else
#include <config.h>
#endif

#ifndef NO_TRACI

#include <microsim/MSJunctionControl.h>
#include "TraCIConstants.h"
#include "lib/TraCI_Junction.h"
#include "TraCIServer.h"
#include "TraCIServerAPI_Junction.h"


// ===========================================================================
// 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 " + toHex(variable, 2) + " specified", outputStorage);
    }
    // begin response building
    tcpip::Storage tempMsg;
    //  response-code, variableID, objectID
    tempMsg.writeUnsignedByte(RESPONSE_GET_JUNCTION_VARIABLE);
    tempMsg.writeUnsignedByte(variable);
    tempMsg.writeString(id);

    try {
        switch (variable) {
            case ID_LIST:
                tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
                tempMsg.writeStringList(TraCI_Junction::getIDList());
                break;
            case ID_COUNT:
                tempMsg.writeUnsignedByte(TYPE_INTEGER);
                tempMsg.writeInt(TraCI_Junction::getIDCount());
                break;
            case VAR_POSITION: {
                tempMsg.writeUnsignedByte(POSITION_2D);
                TraCIPosition p = TraCI_Junction::getPosition(id);
                tempMsg.writeDouble(p.x);
                tempMsg.writeDouble(p.y);
                break;
            }
            case VAR_SHAPE: {
                tempMsg.writeUnsignedByte(TYPE_POLYGON);
                const TraCIPositionVector shp = TraCI_Junction::getShape(id);
                tempMsg.writeUnsignedByte(MIN2(255, (int) shp.size()));
                for (int iPoint = 0; iPoint < MIN2(255, (int) shp.size()); ++iPoint) {
                    tempMsg.writeDouble(shp[iPoint].x);
                    tempMsg.writeDouble(shp[iPoint].y);
                }
                break;
            }
            default:
                break;

        }
    } catch (TraCIException& e) {
        return server.writeErrorStatusCmd(CMD_GET_JUNCTION_VARIABLE, e.what(), outputStorage);
    }
    server.writeStatusCmd(CMD_GET_JUNCTION_VARIABLE, RTYPE_OK, "", outputStorage);
    server.writeResponseWithLength(outputStorage, tempMsg);

    return true;
}

bool
TraCIServerAPI_Junction::getPosition(const std::string& id, Position& p) {
    MSJunction* j = TraCI_Junction::getJunction(id);
    if (j == 0) {
        return false;
    }
    p = j->getPosition();
    return true;
}


NamedRTree*
TraCIServerAPI_Junction::getTree() {
    NamedRTree* t = new NamedRTree();
    const std::map<std::string, MSJunction*>& junctions = MSNet::getInstance()->getJunctionControl().getMyMap();
    for (std::map<std::string, MSJunction*>::const_iterator i = junctions.begin(); i != junctions.end(); ++i) {
        Boundary b = (*i).second->getShape().getBoxBoundary();
        const float cmin[2] = {(float) b.xmin(), (float) b.ymin()};
        const float cmax[2] = {(float) b.xmax(), (float) b.ymax()};
        t->Insert(cmin, cmax, (*i).second);
    }
    return t;
}

#endif


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