TraCIServerAPI_InductionLoop Class Reference

#include <TraCIServerAPI_InductionLoop.h>

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Detailed Description

APIs for getting/setting induction loop values via TraCI.

Definition at line 43 of file TraCIServerAPI_InductionLoop.h.

Static Public Member Functions
static bool	processGet (tcpip::Storage &inputStorage, tcpip::Storage &outputStorage, bool withStatus=true) throw (traci::TraCIException)
	Processes a get value command (Command 0xa0: Get Induction Loop Variable).
Private Member Functions
TraCIServerAPI_InductionLoop &	operator= (const TraCIServerAPI_InductionLoop &s)
	invalidated assignment operator
	TraCIServerAPI_InductionLoop (const TraCIServerAPI_InductionLoop &s)
	invalidated copy constructor

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Constructor & Destructor Documentation

TraCIServerAPI_InductionLoop::TraCIServerAPI_InductionLoop

(

const TraCIServerAPI_InductionLoop &

s

)

[private]

invalidated copy constructor

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Member Function Documentation

TraCIServerAPI_InductionLoop& TraCIServerAPI_InductionLoop::operator=

(

const TraCIServerAPI_InductionLoop &

s

)

[private]

invalidated assignment operator

bool TraCIServerAPI_InductionLoop::processGet	(	tcpip::Storage &	inputStorage,
		tcpip::Storage &	outputStorage,
		bool	withStatus = true
	)			throw (traci::TraCIException) [static]

Processes a get value command (Command 0xa0: Get Induction Loop Variable).

Parameters:

[in]	inputStorage	The storage to read the command from
[out]	outputStorage	The storage to write the result to
[in]	withStatus	Whether the status message shall be written (not in subscription)

Definition at line 53 of file TraCIServerAPI_InductionLoop.cpp.

References CMD_GET_INDUCTIONLOOP_VARIABLE, MSInductLoop::getCurrentLength(), MSInductLoop::getCurrentOccupancy(), MSInductLoop::getCurrentPassedNumber(), MSInductLoop::getCurrentSpeed(), MSInductLoop::getCurrentVehicleIDs(), MSNet::getDetectorControl(), MSDetectorControl::getInductLoops(), MSNet::getInstance(), MSInductLoop::getTimestepsSinceLastDetection(), ID_LIST, LAST_STEP_LENGTH, LAST_STEP_MEAN_SPEED, LAST_STEP_OCCUPANCY, LAST_STEP_TIME_SINCE_DETECTION, LAST_STEP_VEHICLE_ID_LIST, LAST_STEP_VEHICLE_NUMBER, RESPONSE_GET_INDUCTIONLOOP_VARIABLE, RTYPE_ERR, RTYPE_OK, tcpip::Storage::size(), TYPE_FLOAT, TYPE_INTEGER, TYPE_STRINGLIST, tcpip::Storage::writeFloat(), tcpip::Storage::writeInt(), TraCIServerAPIHelper::writeStatusCmd(), tcpip::Storage::writeString(), tcpip::Storage::writeStringList(), and tcpip::Storage::writeUnsignedByte().

Referenced by traci::TraCIServer::dispatchCommand(), and traci::TraCIServer::processSingleSubscription().

                                               {
    std::string warning = ""; // additional description for response
    // variable & id
    int variable = inputStorage.readUnsignedByte();
    std::string id = inputStorage.readString();
    // check variable
    if (variable!=ID_LIST&&variable!=LAST_STEP_VEHICLE_NUMBER&&variable!=LAST_STEP_MEAN_SPEED
            &&variable!=LAST_STEP_VEHICLE_ID_LIST&&variable!=LAST_STEP_OCCUPANCY
            &&variable!=LAST_STEP_LENGTH&&variable!=LAST_STEP_TIME_SINCE_DETECTION) {
        TraCIServerAPIHelper::writeStatusCmd(CMD_GET_INDUCTIONLOOP_VARIABLE, RTYPE_ERR, "Get Induction Loop Variable: unsupported variable specified", outputStorage);
        return false;
    }
    // begin response building
    Storage tempMsg;
    //  response-code, variableID, objectID
    tempMsg.writeUnsignedByte(RESPONSE_GET_INDUCTIONLOOP_VARIABLE);
    tempMsg.writeUnsignedByte(variable);
    tempMsg.writeString(id);
    // process request
    if (variable==ID_LIST) {
        std::vector<std::string> ids;
        MSNet::getInstance()->getDetectorControl().getInductLoops().insertIDs(ids);
        tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
        tempMsg.writeStringList(ids);
    } else {
        MSInductLoop *il = MSNet::getInstance()->getDetectorControl().getInductLoops().get(id);
        if (il==0) {
            TraCIServerAPIHelper::writeStatusCmd(CMD_GET_INDUCTIONLOOP_VARIABLE, RTYPE_ERR, "Induction loop '" + id + "' is not known", outputStorage);
            return false;
        }
        switch (variable) {
        case ID_LIST:
            break;
        case LAST_STEP_VEHICLE_NUMBER:
            tempMsg.writeUnsignedByte(TYPE_INTEGER);
            tempMsg.writeInt(il->getCurrentPassedNumber());
            break;
        case LAST_STEP_MEAN_SPEED:
            tempMsg.writeUnsignedByte(TYPE_FLOAT);
            tempMsg.writeFloat((float) il->getCurrentSpeed());
            break;
        case LAST_STEP_VEHICLE_ID_LIST: {
            tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
            std::vector<std::string> ids = il->getCurrentVehicleIDs();
            tempMsg.writeStringList(ids);
        }
        break;
        case LAST_STEP_OCCUPANCY:
            tempMsg.writeUnsignedByte(TYPE_FLOAT);
            tempMsg.writeFloat((float) il->getCurrentOccupancy());
            break;
        case LAST_STEP_LENGTH:
            tempMsg.writeUnsignedByte(TYPE_FLOAT);
            tempMsg.writeFloat((float) il->getCurrentLength());
            break;
        case LAST_STEP_TIME_SINCE_DETECTION:
            tempMsg.writeUnsignedByte(TYPE_FLOAT);
            tempMsg.writeFloat((float) il->getTimestepsSinceLastDetection());
            break;
        default:
            break;
        }
    }
    if (withStatus) {
        TraCIServerAPIHelper::writeStatusCmd(CMD_GET_INDUCTIONLOOP_VARIABLE, RTYPE_OK, warning, outputStorage);
    }
    // send response
    outputStorage.writeUnsignedByte(0); // command length -> extended
    outputStorage.writeInt(1 + 4 + tempMsg.size());
    outputStorage.writeStorage(tempMsg);
    return true;
}

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The documentation for this class was generated from the following files:

• TraCIServerAPI_InductionLoop.h
• TraCIServerAPI_InductionLoop.cpp