JsonLogWriter Class Reference

Defines a LogWriter that generates a JSON table of values. More...

#include <JsonLogWriter.h>

Inheritance diagram for JsonLogWriter:

Collaboration diagram for JsonLogWriter:

Public Member Functions
	JsonLogWriter (bool formatted, int varCount, char **varList, char **unitList, int attCount=0, char **attList=NULL)
	Constructor. More...
virtual	~JsonLogWriter ()
	Destructor. More...
unsigned int	writeHeader ()
	Start writing the Json file. More...
unsigned int	write (const LogEntry *entry, const Unit *unit=NULL)
	Write an entry to the buffer. More...
unsigned int	writeFooter ()
	Finish writing the Json file. More...
Public Member Functions inherited from FilterLogWriter
	FilterLogWriter (LogWriter *outputTo, int varCount, char **varList, char **unitList, bool passCycleStarts, int attCount=0, char **attList=NULL)
	Constructor. More...
virtual	~FilterLogWriter ()
	Destructor. More...
virtual void	endCycle ()
	Do what needs to be done at the end of the cycle. More...
virtual void	config (Logger &logger)
	Configure from a config file. More...
Public Member Functions inherited from LogWriter
virtual	~LogWriter ()
	Destructor. More...
virtual void	setOutStream (OutStream &outStream)
	Sets the OutStream. More...
virtual bool	isValid ()
	Return true if logStream_ is available. More...
void	addParent ()
void	removeParent ()
int	getParentCount ()
virtual void	activate ()
virtual void	deactivate ()
virtual bool	isActive ()
virtual void	lockWrites ()
virtual void	unlockWrites ()

Protected Member Functions
virtual unsigned int	writeData (const DataEntry *dataEntry, int index, const Unit *unit)
virtual unsigned int	writeAtt (const DataEntry *dataEntry, int index, const Unit *unit)
Protected Member Functions inherited from FilterLogWriter
virtual void	resetInputs ()
	Reset cached input settings. More...
void	initializeFilterLogWriter ()
virtual unsigned int	writeCycleStart (const EventEntry *eventEntry)
Protected Member Functions inherited from LogWriter
	LogWriter ()
	Protected constructor for pure virtual class. More...
	LogWriter (OutStream &outStream)
	Protected constructor for pure virtual class. More...

Private Member Functions
	JsonLogWriter (const JsonLogWriter &old)
void	initializeJsonLogWriter ()
	Initialize variables, etc. More...
void	addVar (const int index, const ElementURI *uri, BinaryDataType binaryType, const Unit &unit, short universalCode)
	Add a new variable. More...
void	setAttValue (const DataEntry *dataEntry, const int attIndex)
	Set an attribute value. More...

Private Attributes
cJSON *	json_
bool	jsonLogWriterInitialized_
bool	finalized_
bool	formatted_
cJSON **	vars_
cJSON **	timeVars_
const Unit **	units_
const ElementURI **	uris_

Additional Inherited Members
Public Types inherited from LogWriter
enum	ServiceType {   NO_SERVICE = -1, SERVICE_COURIER, SERVICE_EXPRESS, SERVICE_PRIORITY,   SERVICE_NORMAL, SERVICE_BULK, SERVICE_COUNT, SERVICE_MULTI }
Static Public Member Functions inherited from LogWriter
static ServiceType	Str2ServiceType (const char *const serviceTypeStr, int len=-1)
static const char *	ServiceType2Str (LogWriter::ServiceType serviceType)
static size_t	ServiceType2Strlen (LogWriter::ServiceType serviceType)
Static Public Attributes inherited from LogWriter
static const char *const	SERVICE_TYPE_STRS [SERVICE_COUNT]
static size_t const	SERVICE_TYPE_STRLEN [SERVICE_COUNT]
Protected Attributes inherited from FilterLogWriter
LogWriter *	outputTo_
int	varCount_
char **	varList_
char **	unitList_
const Unit **	units_
bool	passCycleStarts_
int	attCount_
char **	attList_
unsigned short *	uriCodes_
int *	codeLookup_
unsigned short *	attUriCodes_
int *	attCodeLookup_
bool *	isUniversal_
Timestamp	lastTime_
bool	initializedFilterLogWriter_
unsigned int	slateElementURICount_
Protected Attributes inherited from LogWriter
OutStream *	logStream_
	Stores an OutStream. More...
bool	wroteHeader_
bool	wroteFooter_
Mutex	writeMutex_
int	parentCount_
bool	active_

Detailed Description

Defines a LogWriter that generates a JSON table of values.

A list of variable names is supplied to the constructor.

Constructor & Destructor Documentation

JsonLogWriter::JsonLogWriter	(	bool	formatted,
		int	varCount,
		char **	varList,
		char **	unitList,
		int	attCount = 0,
		char **	attList = NULL
	)

Constructor.

Streamless Constructor.

References FilterLogWriter::attCount_, timeVars_, units_, uris_, FilterLogWriter::varCount_, and vars_.

JsonLogWriter::~JsonLogWriter ( )

virtual

Destructor.

References finalized_, json_, timeVars_, units_, uris_, vars_, and writeFooter().

JsonLogWriter::JsonLogWriter ( const JsonLogWriter &  old )

private

Member Function Documentation

void JsonLogWriter::addVar ( const int  index, const ElementURI *  uri, BinaryDataType  binaryType, const Unit &  unit, short  universalCode  )

private

Add a new variable.

References Str::cStr(), UniversalURI::DEPTH, Str::EMPTY_STR, Str::find(), Unit::getAbbreviation(), Slate::GetElementURI(), FilterLogWriter::isUniversal_, json_, UniversalURI::LATITUDE, UniversalURI::LONGITUDE, ElementURI::NO_CODE, Str::NO_POS, Str::replaceChar(), Str::substr(), timeVars_, units_, uris_, and vars_.

Referenced by initializeJsonLogWriter().

void JsonLogWriter::initializeJsonLogWriter ( )

private

Initialize variables, etc.

References addVar(), FilterLogWriter::attCount_, FilterLogWriter::attUriCodes_, Str::findLastOf(), DataAccess::getBinaryType(), Slate::GetDataAccess(), Slate::GetDataAccessCount(), DataAccess::getElementCode(), Slate::GetElementURI(), Slate::GetElementURICode(), DataAccess::getUnit(), DataAccess::getUniversalCode(), Slate::IsDirectoryRead(), FilterLogWriter::isUniversal_, jsonLogWriterInitialized_, Str::NO_POS, NO_TYPE, units_, FilterLogWriter::uriCodes_, FilterLogWriter::varCount_, FilterLogWriter::varList_, and vars_.

Referenced by write().

void JsonLogWriter::setAttValue ( const DataEntry *  dataEntry, const int  attIndex  )

private

Set an attribute value.

unsigned int JsonLogWriter::write ( const LogEntry *  entry, const Unit *  unit = NULL  )

virtual

Write an entry to the buffer.

Reimplemented from FilterLogWriter.

References Slate::GetElementURICount(), FilterLogWriter::initializedFilterLogWriter_, FilterLogWriter::initializeFilterLogWriter(), initializeJsonLogWriter(), jsonLogWriterInitialized_, FilterLogWriter::slateElementURICount_, and FilterLogWriter::write().

unsigned int JsonLogWriter::writeAtt ( const DataEntry *  dataEntry, int  index, const Unit *  unit  )

protectedvirtual

Reimplemented from FilterLogWriter.

References FilterLogWriter::varCount_, and writeData().

unsigned int JsonLogWriter::writeData ( const DataEntry *  dataEntry, int  index, const Unit *  unit  )

protectedvirtual

Reimplemented from FilterLogWriter.

References Timestamp::asDouble(), DataValue::copyTo(), Str::cStr(), BlobValue::get(), DataAccess::getBinaryType(), DataEntry::getDataAccess(), DataEntry::getDataValue(), ElementURI::getDimension1(), ElementURI::getDimension2(), ElementURI::getDimension3(), ElementURI::getDimensions(), BlobValue::getElements(), LogEntry::getTimestamp(), MULTIVALUE, NAN, timeVars_, StrValue::toString(), units_, uris_, and vars_.

Referenced by writeAtt().

unsigned int JsonLogWriter::writeFooter ( )

virtual

Finish writing the Json file.

Reimplemented from FilterLogWriter.

References formatted_, FilterLogWriter::initializedFilterLogWriter_, json_, jsonLogWriterInitialized_, LogWriter::logStream_, ElementURI::NO_CODE, FilterLogWriter::uriCodes_, FilterLogWriter::varCount_, FilterLogWriter::varList_, vars_, and LogWriter::wroteFooter_.

Referenced by ~JsonLogWriter().

unsigned int JsonLogWriter::writeHeader ( )

virtual

Start writing the Json file.

Reimplemented from FilterLogWriter.

Member Data Documentation

bool JsonLogWriter::finalized_

private

Referenced by ~JsonLogWriter().

bool JsonLogWriter::formatted_

private

Referenced by writeFooter().

cJSON* JsonLogWriter::json_

private

Referenced by addVar(), writeFooter(), and ~JsonLogWriter().

bool JsonLogWriter::jsonLogWriterInitialized_

private

Referenced by initializeJsonLogWriter(), write(), and writeFooter().

cJSON** JsonLogWriter::timeVars_

private

Referenced by addVar(), JsonLogWriter(), writeData(), and ~JsonLogWriter().

const Unit** JsonLogWriter::units_

private

Referenced by addVar(), initializeJsonLogWriter(), JsonLogWriter(), writeData(), and ~JsonLogWriter().

const ElementURI** JsonLogWriter::uris_

private

Referenced by addVar(), JsonLogWriter(), writeData(), and ~JsonLogWriter().

cJSON** JsonLogWriter::vars_

private

Referenced by addVar(), initializeJsonLogWriter(), JsonLogWriter(), writeData(), writeFooter(), and ~JsonLogWriter().

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

• /Volumes/ubuntu_share/lrauv-application/Source/logger/JsonLogWriter.h
• /Volumes/ubuntu_share/lrauv-application/Source/logger/JsonLogWriter.cpp