RODFDetFlowLoader Class Reference

#include <RODFDetFlowLoader.h>

Detailed Description

A loader for detector flows.

Definition at line 47 of file RODFDetFlowLoader.h.


Public Member Functions
void	read (const std::string &file) throw (IOError, ProcessError)
	Reads the given file assuming it contains detector values.
	RODFDetFlowLoader (const RODFDetectorCon &dets, RODFDetectorFlows &into, SUMOTime startTime, SUMOTime endTime, int timeOffset) throw ()
	Constructor.
	~RODFDetFlowLoader () throw ()
	Destructor.
Private Member Functions
RODFDetFlowLoader &	operator= (const RODFDetFlowLoader &src)
	Invalidated assignment operator.
	RODFDetFlowLoader (const RODFDetFlowLoader &src)
	Invalidated copy constructor.
Private Attributes
const RODFDetectorCon &	myDetectorContainer
	Container holding known detectors.
SUMOTime	myEndTime
bool	myHaveWarnedAboutOverridingBoundaries
	Whether a warning about overriding boundaries was already written.
NamedColumnsParser	myLineHandler
	The value extractor.
SUMOTime	myStartTime
	The first and the last time step to read.
RODFDetectorFlows &	myStorage
	The container for read detector values.
int	myTimeOffset
	The time offset to apply to read time values.

Constructor & Destructor Documentation

RODFDetFlowLoader::RODFDetFlowLoader	(	const RODFDetectorCon &	dets,
		RODFDetectorFlows &	into,
		SUMOTime	startTime,
		SUMOTime	endTime,
		int	timeOffset
	)			throw ()

Constructor.

Parameters:

`[in]`	dets	Definitions of known detectors
	in,filled]	into Container to store read values into
`[in]`	startTime	The first time step for which values shall be read
`[in]`	endTime	The last time step for which values shall be read
`[in]`	timeOffset	The offset which shall be applied to the read times

Definition at line 49 of file RODFDetFlowLoader.cpp.

00053         : myStorage(into), myTimeOffset(timeOffset),
00054         myStartTime(startTime/60), myEndTime((endTime+59)/60), myDetectorContainer(dets),
00055         myHaveWarnedAboutOverridingBoundaries(false) {}

RODFDetFlowLoader::~RODFDetFlowLoader ( ) throw ()

Destructor.

Definition at line 59 of file RODFDetFlowLoader.cpp.

00059 {}

RODFDetFlowLoader::RODFDetFlowLoader ( const RODFDetFlowLoader & src ) [private]

Invalidated copy constructor.

Member Function Documentation

RODFDetFlowLoader& RODFDetFlowLoader::operator= ( const RODFDetFlowLoader & src ) [private]

Invalidated assignment operator.

void RODFDetFlowLoader::read ( const std::string & file ) throw (IOError, ProcessError)

Reads the given file assuming it contains detector values.

Reads the first line, first, and parses it assuming it contains the names of the columns that follow within the next lines.

Then, the rest of the file is read and the read values for vehicle/heavy vehicle amounts and speeds are stored into "myStorage". Values that lie before "myStartTime" and behind "myEndTime" as well as values which refer to an unknown detector are omitted.

Parameters:

[in] file The name of the file to read

Exceptions:

	IOError	Not yet implemented!
	ProcessError	Thrown if a value could not be parsed properly or a needed value is missing

Definition at line 63 of file RODFDetFlowLoader.cpp.

References TplConvert< E >::_2int(), TplConvert< E >::_2SUMOReal(), RODFDetectorFlows::addFlow(), NamedColumnsParser::get(), LineReader::getFileName(), MsgHandler::getWarningInstance(), LineReader::hasMore(), MsgHandler::inform(), FlowDef::isLKW, NamedColumnsParser::know(), RODFDetectorCon::knows(), myDetectorContainer, myEndTime, myHaveWarnedAboutOverridingBoundaries, myLineHandler, myStorage, myTimeOffset, NamedColumnsParser::parseLine(), FlowDef::qLKW, FlowDef::qPKW, LineReader::readLine(), NamedColumnsParser::reinit(), FlowDef::vLKW, and FlowDef::vPKW.

Referenced by readDetectorFlows().

00063                                                                           {
00064     LineReader lr(file);
00065     // parse first line
00066     myLineHandler.reinit(lr.readLine(), ";", ";", true, true);
00067     // parse values
00068     while (lr.hasMore()) {
00069         std::string line = lr.readLine();
00070         if (line.find(';')==std::string::npos) {
00071             continue;
00072         }
00073         myLineHandler.parseLine(line);
00074         try {
00075             std::string detName = myLineHandler.get("detector");
00076             if (!myDetectorContainer.knows(detName)) {
00077                 continue;
00078             }
00079             int time = TplConvert<char>::_2int((myLineHandler.get("time").c_str()));
00080             time -= myTimeOffset;
00081             if (time<myStartTime||time>myEndTime) {
00082                 if (!myHaveWarnedAboutOverridingBoundaries) {
00083                     myHaveWarnedAboutOverridingBoundaries = true;
00084                     MsgHandler::getWarningInstance()->inform("At least one value lies beyond given time boundaries.");
00085                 }
00086                 continue;
00087             }
00088             FlowDef fd;
00089             fd.isLKW = 0;
00090             fd.qPKW = TplConvert<char>::_2SUMOReal(myLineHandler.get("qpkw").c_str());
00091             fd.vPKW = TplConvert<char>::_2SUMOReal(myLineHandler.get("vpkw").c_str());
00092             fd.qLKW = 0;
00093             if (myLineHandler.know("qLKW")) {
00094                 fd.qLKW = TplConvert<char>::_2SUMOReal(myLineHandler.get("qlkw").c_str());
00095             }
00096             fd.vLKW = 0;
00097             if (myLineHandler.know("vLKW")) {
00098                 fd.vLKW = TplConvert<char>::_2SUMOReal(myLineHandler.get("vlkw").c_str());
00099             }
00100             if (fd.qLKW<0) {
00101                 fd.qLKW = 0;
00102             }
00103             if (fd.qPKW<0) {
00104                 fd.qPKW = 0;
00105             }
00106             myStorage.addFlow(detName, time, fd);
00107             continue;
00108         } catch (UnknownElement &) {} catch (OutOfBoundsException &) {} catch (NumberFormatException &) {}
00109         throw ProcessError("The detector-flow-file '" + lr.getFileName() + "' is corrupt;\n"
00110                            + " The following values must be supplied : 'Detector', 'Time', 'qPKW', 'vPKW'\n"
00111                            + " The according column names must be given in the first line of the file.");
00112     }
00113 }