Base64 Class Reference

Class to encode and decode Base64. More...

#include <OpenMS/FORMAT/Base64.h>

Collaboration diagram for Base64:

Classes
union	Reinterpreter32_
	Internal class needed for type-punning. More...
union	Reinterpreter64_
	Internal class needed for type-punning. More...

Public Types
enum	ByteOrder { BYTEORDER_BIGENDIAN, BYTEORDER_LITTLEENDIAN }
	Byte order type. More...

Public Member Functions
	Base64 ()=default
	default constructor More...

Static Public Member Functions
template<typename FromType >
static void	encode (std::vector< FromType > &in, ByteOrder to_byte_order, String &out, bool zlib_compression=false)
	Encodes a vector of floating point numbers to a Base64 string. More...
template<typename ToType >
static void	decode (const String &in, ByteOrder from_byte_order, std::vector< ToType > &out, bool zlib_compression=false)
	Decodes a Base64 string to a vector of floating point numbers. More...
template<typename FromType >
static void	encodeIntegers (std::vector< FromType > &in, ByteOrder to_byte_order, String &out, bool zlib_compression=false)
	Encodes a vector of integer point numbers to a Base64 string. More...
template<typename ToType >
static void	decodeIntegers (const String &in, ByteOrder from_byte_order, std::vector< ToType > &out, bool zlib_compression=false)
	Decodes a Base64 string to a vector of integer numbers. More...
static void	encodeStrings (const std::vector< String > &in, String &out, bool zlib_compression=false, bool append_null_byte=true)
	Encodes a vector of strings to a Base64 string. More...
static void	decodeStrings (const String &in, std::vector< String > &out, bool zlib_compression=false)
	Decodes a Base64 string to a vector of (null-terminated) strings. More...
static void	decodeSingleString (const String &in, QByteArray &base64_uncompressed, bool zlib_compression)
	Decodes a Base64 string to a QByteArray. More...

Static Private Member Functions
template<typename ToType >
static void	decodeUncompressed_ (const String &in, ByteOrder from_byte_order, std::vector< ToType > &out)
	Decodes a Base64 string to a vector of floating point numbers. More...
template<typename ToType >
static void	decodeCompressed_ (const String &in, ByteOrder from_byte_order, std::vector< ToType > &out)
	Decodes a compressed Base64 string to a vector of floating point numbers. More...
template<typename ToType >
static void	decodeIntegersUncompressed_ (const String &in, ByteOrder from_byte_order, std::vector< ToType > &out)
	Decodes a Base64 string to a vector of integer numbers. More...
template<typename ToType >
static void	decodeIntegersCompressed_ (const String &in, ByteOrder from_byte_order, std::vector< ToType > &out)
	Decodes a compressed Base64 string to a vector of integer numbers. More...

Static Private Attributes
static const char	encoder_ []
static const char	decoder_ []

Detailed Description

Class to encode and decode Base64.

Base64 supports two precisions: 32 bit (float) and 64 bit (double).

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Class Documentation

OpenMS::Base64::Reinterpreter32_

union OpenMS::Base64::Reinterpreter32_

Internal class needed for type-punning.

Collaboration diagram for Base64::Reinterpreter32_:

Class Members
float	f
UInt32	i

OpenMS::Base64::Reinterpreter64_

union OpenMS::Base64::Reinterpreter64_

Internal class needed for type-punning.

Collaboration diagram for Base64::Reinterpreter64_:

Class Members
double	f
UInt64	i

Member Enumeration Documentation

ByteOrder

enum ByteOrder

Byte order type.

Enumerator
BYTEORDER_BIGENDIAN	Big endian type.
BYTEORDER_LITTLEENDIAN	Little endian type.

Constructor & Destructor Documentation

Base64()

Base64 ( )

default

default constructor

Member Function Documentation

decode()

void decode ( const String &  in, ByteOrder  from_byte_order, std::vector< ToType > &  out, bool  zlib_compression = false  )

static

Decodes a Base64 string to a vector of floating point numbers.

You have to specify the byte order of the input and if it is zlib-compressed.

References Base64::decodeCompressed_(), and Base64::decodeUncompressed_().

decodeCompressed_()

void decodeCompressed_ ( const String &  in, ByteOrder  from_byte_order, std::vector< ToType > &  out  )

staticprivate

Decodes a compressed Base64 string to a vector of floating point numbers.

References Base64::BYTEORDER_BIGENDIAN, Base64::BYTEORDER_LITTLEENDIAN, OpenMS::endianize32(), OpenMS::endianize64(), and OPENMS_IS_BIG_ENDIAN.

Referenced by Base64::decode().

decodeIntegers()

void decodeIntegers ( const String &  in, ByteOrder  from_byte_order, std::vector< ToType > &  out, bool  zlib_compression = false  )

static

Decodes a Base64 string to a vector of integer numbers.

You have to specify the byte order of the input and if it is zlib-compressed.

References Base64::decodeIntegersCompressed_(), and Base64::decodeIntegersUncompressed_().

decodeIntegersCompressed_()

void decodeIntegersCompressed_ ( const String &  in, ByteOrder  from_byte_order, std::vector< ToType > &  out  )

staticprivate

Decodes a compressed Base64 string to a vector of integer numbers.

References Base64::BYTEORDER_BIGENDIAN, Base64::BYTEORDER_LITTLEENDIAN, OpenMS::endianize32(), OpenMS::endianize64(), and OPENMS_IS_BIG_ENDIAN.

Referenced by Base64::decodeIntegers().

decodeIntegersUncompressed_()

void decodeIntegersUncompressed_ ( const String &  in, ByteOrder  from_byte_order, std::vector< ToType > &  out  )

staticprivate

Decodes a Base64 string to a vector of integer numbers.

References Base64::BYTEORDER_BIGENDIAN, Base64::BYTEORDER_LITTLEENDIAN, Base64::decoder_, and OPENMS_IS_BIG_ENDIAN.

Referenced by Base64::decodeIntegers().

decodeSingleString()

static void decodeSingleString ( const String &  in, QByteArray &  base64_uncompressed, bool  zlib_compression  )

static

Decodes a Base64 string to a QByteArray.

Parameters

in	A String containing the Base64 encoded data
out	A ByteArray containing the decoded data
zlib_compression	Whether the data should be decompressed with zlib after decoding in Base64

decodeStrings()

static void decodeStrings ( const String &  in, std::vector< String > &  out, bool  zlib_compression = false  )

static

Decodes a Base64 string to a vector of (null-terminated) strings.

You have to specify whether the Base64 string is zlib-compressed.

Parameters

in	A String containing the Base64 encoded data
out	A vector containing the decoded data (split at null "\0") bytes
zlib_compression	Whether the data should be decompressed with zlib after decoding in Base64

decodeUncompressed_()

void decodeUncompressed_ ( const String &  in, ByteOrder  from_byte_order, std::vector< ToType > &  out  )

staticprivate

Decodes a Base64 string to a vector of floating point numbers.

References Base64::BYTEORDER_BIGENDIAN, Base64::BYTEORDER_LITTLEENDIAN, Base64::decoder_, and OPENMS_IS_BIG_ENDIAN.

Referenced by Base64::decode().

encode()

void encode ( std::vector< FromType > &  in, ByteOrder  to_byte_order, String &  out, bool  zlib_compression = false  )

static

Encodes a vector of floating point numbers to a Base64 string.

You can specify the byte order of the output and if it is zlib-compressed.

Note

in will be empty after this method

References Base64::BYTEORDER_BIGENDIAN, Base64::BYTEORDER_LITTLEENDIAN, Base64::encoder_, OpenMS::endianize32(), OpenMS::endianize64(), Base64::Reinterpreter64_::f, Base64::Reinterpreter32_::f, Base64::Reinterpreter64_::i, Base64::Reinterpreter32_::i, and OPENMS_IS_BIG_ENDIAN.

encodeIntegers()

void encodeIntegers ( std::vector< FromType > &  in, ByteOrder  to_byte_order, String &  out, bool  zlib_compression = false  )

static

Encodes a vector of integer point numbers to a Base64 string.

You can specify the byte order of the output and if it is zlib-compressed.

Note

in will be empty after this method

References Base64::BYTEORDER_BIGENDIAN, Base64::BYTEORDER_LITTLEENDIAN, Base64::encoder_, OpenMS::endianize32(), OpenMS::endianize64(), and OPENMS_IS_BIG_ENDIAN.

encodeStrings()

static void encodeStrings ( const std::vector< String > &  in, String &  out, bool  zlib_compression = false, bool  append_null_byte = true  )

static

Encodes a vector of strings to a Base64 string.

You can specify zlib-compression.

Parameters

in	A vector of data to be encoded (String)
out	A String containing the Base64 encoded data
zlib_compression	Whether the data should be compressed with zlib before encoding in Base64
append_null_byte	Whether a null-byte should be appended after each of the Strings contained in the in vector

Note

Unless append_null_byte is false, will add a null byte ("\0") at the end of each input

Member Data Documentation

decoder_

const char decoder_[]

staticprivate

Referenced by Base64::decodeIntegersUncompressed_(), and Base64::decodeUncompressed_().

encoder_

const char encoder_[]

staticprivate

Referenced by Base64::encode(), and Base64::encodeIntegers().