EventCacheStatic Namespace Reference

Typedefs
typedef TStringBuilder< ConversionBufferSize >	FJsonStringBuilder

Functions
int	ComputeAttributeSize (const FAnalyticsEventAttribute &Attribute)
int	ComputeAttributeSize (const TArray< FAnalyticsEventAttribute > &Attributes)
int	ComputeEventSize (const FString &EventName, const TArray< FAnalyticsEventAttribute > &Attributes, int CurrentDefaultAttributeSizeEstimate)
void	AppendString (TArray< uint8 > &UTF8Stream, const ANSICHAR *UTF8Chars, int32 CharCount)
void	AppendString (TArray< uint8 > &UTF8Stream, const TCHAR *Str, int32 Len)
void	AppendString (TArray< uint8 > &UTF8Stream, const FString &Str)
void	AppendString (TArray< uint8 > &UTF8Stream, const FJsonStringBuilder &str)
void	AppendJsonString (TArray< uint8 > &UTF8Stream, FJsonStringBuilder &JsonStringBuilder, const FString &str, bool bIsJsonFragment)
void	AppendEventAttribute (TArray< uint8 > &UTF8Stream, FJsonStringBuilder &JsonStringBuilder, const FAnalyticsEventAttribute &Attr)
void	InitializePayloadBuffer (TArray< uint8 > &Buffer, int32 MaximumPayloadSize)

Variables
FAutoConsoleVariableRef	CvarPayloadPercentageOfMaxForWarning (TEXT("AnalyticsET.PayloadPercentageOfMaxForWarning"), PayloadPercentageOfMaxForWarning,)
FAutoConsoleVariableRef	CvarPayloadFlushTimeSecForWarning (TEXT("AnalyticsET.PayloadFlushTimeSecForWarning"), PayloadFlushTimeSecForWarning,)
bool	bUseZeroDateOffset = false
constexpr int32	ConversionBufferSize = 512
const ANSICHAR *	PayloadTemplate = "{\"Events\":[]}"
const int32	PayloadTemplateLength = 13
const ANSICHAR *	PayloadTrailer = "]}"
const int32	PayloadTrailerLength = 2

Typedef Documentation

FJsonStringBuilder

typedef TStringBuilder<ConversionBufferSize> EventCacheStatic::FJsonStringBuilder

Function Documentation

AppendEventAttribute()

void EventCacheStatic::AppendEventAttribute ( TArray< uint8 > &  UTF8Stream, FJsonStringBuilder &  JsonStringBuilder, const FAnalyticsEventAttribute &  Attr  )

inline

Append an AnalyticsEventAttribute to a UTF8 stream: ,"<NAME>":

AppendJsonString()

void EventCacheStatic::AppendJsonString ( TArray< uint8 > &  UTF8Stream, FJsonStringBuilder &  JsonStringBuilder, const FString &  str, bool  bIsJsonFragment  )

inline

Append a Json string to a UTF8 stream. Escapes the string, adds quotes, and converts it to UTF8 in temp space. Does NOT add a NULL terminator. If it's a JsonFragment, doesn't escape or add the quotes.

AppendString() [1/4]

void EventCacheStatic::AppendString ( TArray< uint8 > &  UTF8Stream, const ANSICHAR *  UTF8Chars, int32  CharCount  )

inline

Appends UTF8 chars directly to a UTF8 stream. Must already be properly UTF8 encoded. Does NOT add a NULL terminator.

AppendString() [2/4]

void EventCacheStatic::AppendString ( TArray< uint8 > &  UTF8Stream, const FJsonStringBuilder &  str  )

inline

Appends an TStringBuilder efficiently into a UTF8 stream. Does NOT add a NULL terminator.

AppendString() [3/4]

void EventCacheStatic::AppendString ( TArray< uint8 > &  UTF8Stream, const FString &  Str  )

inline

Appends an FString efficiently into a UTF8 stream. Does NOT add a NULL terminator.

AppendString() [4/4]

void EventCacheStatic::AppendString ( TArray< uint8 > &  UTF8Stream, const TCHAR *  Str, int32  Len  )

inline

Appends a TCHAR* string (need not be null-terminated) to a UTF8 stream. Converts the string directly into the UTF8Stream. Does NOT add a NULL terminator.

This function is highly optimized for efficiency. writes directly into the output stream without precomputing the string length. Optimistically adds a bit of space to handle ocassional multibyte chars, but keeps growing until it fits. In practice, this makes this function 30-40% faster than precomputing the string length in advance, and over 2x faster than usig FStringConversion<> directly, even with an appropriately sized buffer.

ComputeAttributeSize() [1/2]

int EventCacheStatic::ComputeAttributeSize ( const FAnalyticsEventAttribute &  Attribute )

inline

ComputeAttributeSize() [2/2]

int EventCacheStatic::ComputeAttributeSize ( const TArray< FAnalyticsEventAttribute > &  Attributes )

inline

ComputeEventSize()

int EventCacheStatic::ComputeEventSize ( const FString &  EventName, const TArray< FAnalyticsEventAttribute > &  Attributes, int  CurrentDefaultAttributeSizeEstimate  )

inline

InitializePayloadBuffer()

void EventCacheStatic::InitializePayloadBuffer ( TArray< uint8 > &  Buffer, int32  MaximumPayloadSize  )

inline

Variable Documentation

bUseZeroDateOffset

bool EventCacheStatic::bUseZeroDateOffset = false

Used for testing below to ensure stable output

ConversionBufferSize

constexpr int32 EventCacheStatic::ConversionBufferSize = 512

constexpr

CvarPayloadFlushTimeSecForWarning

FAutoConsoleVariableRef EventCacheStatic::CvarPayloadFlushTimeSecForWarning(TEXT("AnalyticsET.PayloadFlushTimeSecForWarning"), PayloadFlushTimeSecForWarning,)	(	TEXT("AnalyticsET.PayloadFlushTimeSecForWarning")	,
		PayloadFlushTimeSecForWarning
	)

CvarPayloadPercentageOfMaxForWarning

FAutoConsoleVariableRef EventCacheStatic::CvarPayloadPercentageOfMaxForWarning(TEXT("AnalyticsET.PayloadPercentageOfMaxForWarning"), PayloadPercentageOfMaxForWarning,)	(	TEXT("AnalyticsET.PayloadPercentageOfMaxForWarning")	,
		PayloadPercentageOfMaxForWarning
	)

PayloadTemplate

const ANSICHAR* EventCacheStatic::PayloadTemplate = "{\"Events\":[]}"

PayloadTemplateLength

const int32 EventCacheStatic::PayloadTemplateLength = 13

PayloadTrailer

const ANSICHAR* EventCacheStatic::PayloadTrailer = "]}"

PayloadTrailerLength

const int32 EventCacheStatic::PayloadTrailerLength = 2