Utility Class Reference

Implements generic functionality. More...

#include <Utility.h>

Static Public Member Functions
static int	safeStoi (std::string str)
	Safely attempts to convert a string to a corresponding int. More...
static long long	safeStoll (std::string str)
	Safely attempts to convert a string to a corresponding long long. More...
static long long	safeStod (std::string str)
	Safely attempts to convert a string to a corresponding double. More...
static void	appendBy (std::vector< char > &result, std::string word, char delimiter)
	Appends a char vector by a string and adds a special character at the end. More...
static void	appendBy (std::vector< char > &result, std::vector< std::string > words, char wordSeparator, char endChar)
	Appends a character vector by multiple strings while separating the strings by special characters and adds a character to the end. More...
static std::vector< std::string >	splitStringOn (std::string str, char delimiter)
	Splits a string on a special character. More...
static std::string	hashToUUIDString (std::string hash)
	Changes a string with the format of a hash to a string with the format of a UUID. More...
static std::string	uuidStringToHash (std::string uuid)
	Changes a string with the format of a uuid to a string with the format of a hash. More...
static long long	getCurrentTimeSeconds ()
	Gets the current time since epoch in seconds, represented as an integer.
static long long	getCurrentTimeMilliSeconds ()
	Gets the current time since epoch in milliseconds, represented as an integer.
template<class T >
static T	queryWithRetry (std::function< T()> query)
	A general template for a query to be performed with retries. More...

Detailed Description

Implements generic functionality.

Member Function Documentation

appendBy() [1/2]

void Utility::appendBy ( std::vector< char > &  result, std::string  word, char  delimiter  )

static

Appends a char vector by a string and adds a special character at the end.

Parameters

result	The base char vector.
word	The string to be appended to the char vector.
delimiter	The character to be added at the end of the vector.

appendBy() [2/2]

void Utility::appendBy ( std::vector< char > &  result, std::vector< std::string >  words, char  wordSeparator, char  endChar  )

static

Appends a character vector by multiple strings while separating the strings by special characters and adds a character to the end.

Parameters

result	The base char vector.
words	The strings to be appended to the vector.
wordSeparator	The separator for different words.
endChar	The character appended to the vector at the end.

hashToUUIDString()

std::string Utility::hashToUUIDString ( std::string  hash )

static

Changes a string with the format of a hash to a string with the format of a UUID.

Parameters

hash	The hash to be converted to a UUID string.

Returns

The hash with format of a UUID string.

queryWithRetry()

template<class T >

static T Utility::queryWithRetry ( std::function< T()>  query )

inlinestatic

A general template for a query to be performed with retries.

Template Parameters

T	The output of the query. If no output is given, an empty tuple (std::tuple<>) should be used.

Parameters

query

The corresponding query to be performed a single time.

Returns

Output of the query, which may be an empty tuple (to replace void).

safeStod()

long long Utility::safeStod ( std::string  str )

static

Safely attempts to convert a string to a corresponding double.

Parameters

str	The string to convert.

Returns

double corresponding to string on success, or 0 when the string cannot be converted. If the string cannot be converted, errno is set to EDOM. If the converted string would fall out of the range of a long long, errno is set to ERANGE. Strings of the form "123AAA" are parsed to 123.

safeStoi()

int Utility::safeStoi ( std::string  str )

static

Safely attempts to convert a string to a corresponding int.

Parameters

str	The string to convert.

Returns

The integer corresponding to string on success, or 0 when the string cannot be converted. If the string cannot be converted, errno is set to EDOM. If the converted string would fall out of the range of an integer, errno is set to ERANGE. Strings of the form "123AAA" are parsed to 123.

safeStoll()

long long Utility::safeStoll ( std::string  str )

static

Safely attempts to convert a string to a corresponding long long.

Parameters

str	The string to convert.

Returns

long long corresponding to string on success, or 0 when the string cannot be converted. If the string cannot be converted, errno is set to EDOM. If the converted string would fall out of the range of a long long, errno is set to ERANGE. Strings of the form "123AAA" are parsed to 123.

splitStringOn()

std::vector< std::string > Utility::splitStringOn ( std::string  str, char  delimiter  )

static

Splits a string on a special character.

Parameters

str	The string to be split.
delimiter	The character on which the string is split.

Returns

A vector of the substrings obtained by splitting the string.

uuidStringToHash()

std::string Utility::uuidStringToHash ( std::string  uuid )

static

Changes a string with the format of a uuid to a string with the format of a hash.

Parameters

uuid	The string to be converted to a hash.

Returns

The UUID with format of a hash.

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

• SearchSECODatabaseAPI/General/Utility.h
• SearchSECODatabaseAPI/General/Utility.cpp