SUMO - Simulation of Urban MObility
TraCIServerAPI_Junction.cpp
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00001 /****************************************************************************/
00009 // APIs for getting/setting junction values via TraCI
00010 /****************************************************************************/
00011 // SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
00012 // Copyright (C) 2001-2012 DLR (http://www.dlr.de/) and contributors
00013 /****************************************************************************/
00014 //
00015 //   This file is part of SUMO.
00016 //   SUMO is free software: you can redistribute it and/or modify
00017 //   it under the terms of the GNU General Public License as published by
00018 //   the Free Software Foundation, either version 3 of the License, or
00019 //   (at your option) any later version.
00020 //
00021 /****************************************************************************/
00022 
00023 
00024 // ===========================================================================
00025 // included modules
00026 // ===========================================================================
00027 #ifdef _MSC_VER
00028 #include <windows_config.h>
00029 #else
00030 #include <config.h>
00031 #endif
00032 
00033 #ifndef NO_TRACI
00034 
00035 #include "TraCIConstants.h"
00036 #include <microsim/MSJunction.h>
00037 #include <microsim/MSJunctionControl.h>
00038 #include <microsim/MSNet.h>
00039 #include "TraCIServerAPI_Junction.h"
00040 
00041 #ifdef CHECK_MEMORY_LEAKS
00042 #include <foreign/nvwa/debug_new.h>
00043 #endif // CHECK_MEMORY_LEAKS
00044 
00045 
00046 // ===========================================================================
00047 // used namespaces
00048 // ===========================================================================
00049 using namespace traci;
00050 
00051 
00052 // ===========================================================================
00053 // method definitions
00054 // ===========================================================================
00055 bool
00056 TraCIServerAPI_Junction::processGet(TraCIServer& server, tcpip::Storage& inputStorage,
00057                                     tcpip::Storage& outputStorage) {
00058     std::string warning = "";   // additional description for response
00059     // variable
00060     int variable = inputStorage.readUnsignedByte();
00061     std::string id = inputStorage.readString();
00062     // check variable
00063     if (variable != ID_LIST && variable != VAR_POSITION && variable != ID_COUNT) {
00064         server.writeStatusCmd(CMD_GET_JUNCTION_VARIABLE, RTYPE_ERR, "Get Junction Variable: unsupported variable specified", outputStorage);
00065         return false;
00066     }
00067     // begin response building
00068     tcpip::Storage tempMsg;
00069     //  response-code, variableID, objectID
00070     tempMsg.writeUnsignedByte(RESPONSE_GET_JUNCTION_VARIABLE);
00071     tempMsg.writeUnsignedByte(variable);
00072     tempMsg.writeString(id);
00073     if (variable == ID_LIST) {
00074         std::vector<std::string> ids;
00075         MSNet::getInstance()->getJunctionControl().insertIDs(ids);
00076         tempMsg.writeUnsignedByte(TYPE_STRINGLIST);
00077         tempMsg.writeStringList(ids);
00078     } else if (variable == ID_COUNT) {
00079         std::vector<std::string> ids;
00080         MSNet::getInstance()->getJunctionControl().insertIDs(ids);
00081         tempMsg.writeUnsignedByte(TYPE_INTEGER);
00082         tempMsg.writeInt((int) ids.size());
00083     } else {
00084         MSJunction* j = MSNet::getInstance()->getJunctionControl().get(id);
00085         if (j == 0) {
00086             server.writeStatusCmd(CMD_GET_JUNCTION_VARIABLE, RTYPE_ERR, "Junction '" + id + "' is not known", outputStorage);
00087             return false;
00088         }
00089         switch (variable) {
00090             case ID_LIST:
00091                 break;
00092             case VAR_POSITION:
00093                 tempMsg.writeUnsignedByte(POSITION_2D);
00094                 tempMsg.writeDouble(j->getPosition().x());
00095                 tempMsg.writeDouble(j->getPosition().y());
00096                 break;
00097             default:
00098                 break;
00099         }
00100     }
00101     server.writeStatusCmd(CMD_GET_JUNCTION_VARIABLE, RTYPE_OK, warning, outputStorage);
00102     server.writeResponseWithLength(outputStorage, tempMsg);
00103     return true;
00104 }
00105 
00106 #endif
00107 
00108 
00109 /****************************************************************************/
00110 
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