Read-only stream to obtain data using HTTP chunked encoding. More...

#include <ChunkedStream.h>

Inheritance diagram for ChunkedStream:
Collaboration diagram for ChunkedStream:

Public Member Functions

 ChunkedStream (IDataSourceStream *stream, size_t resultSize=512)
 
- Public Member Functions inherited from StreamTransformer
 StreamTransformer (IDataSourceStream *stream, size_t resultSize=256, size_t blockSize=64)
 
StreamType getStreamType () const override
 Get the stream type. More...
 
int available () override
 Return the total length of the stream. More...
 
bool isValid () const override
 Determine if the stream object contains valid data. More...
 
uint16_t readMemoryBlock (char *data, int bufSize) override
 Read a block of memory. More...
 
bool seek (int len) override
 Move read cursor. More...
 
bool isFinished () override
 Check if all data has been read. More...
 
String getName () const override
 Returns name of the resource. More...
 
virtual void saveState ()
 A method that backs up the current state. More...
 
virtual void restoreState ()
 A method that restores the last backed up state. More...
 
- Public Member Functions inherited from IDataSourceStream
size_t readBytes (char *buffer, size_t length) override
 Read chars from stream into buffer. More...
 
int read () override
 Read one character and moves the stream pointer. More...
 
int peek () override
 Read a character without advancing the stream pointer. More...
 
virtual int seekFrom (int offset, SeekOrigin origin)
 Change position in stream. More...
 
size_t write (uint8_t charToWrite) override
 From Stream class: We don't write using this stream. More...
 
void flush () override
 
virtual String id () const
 Returns unique id of the resource. More...
 
virtual MimeType getMimeType () const
 Get MIME type for stream content. More...
 
String readString (size_t maxLen) override
 Overrides Stream method for more efficient reading. More...
 
virtual bool moveString (String &s)
 Memory-based streams may be able to move content into a String. More...
 
virtual size_t readBytes (char *buffer, size_t length)
 Read chars from stream into buffer. More...
 
size_t readBytes (uint8_t *buffer, size_t length)
 
- Public Member Functions inherited from Stream
 Stream ()
 
void setTimeout (unsigned long timeout)
 Set maximum milliseconds to wait for stream data, default is 1 second. More...
 
bool find (const char *target)
 Read data from the stream until the target string is found. More...
 
bool find (const char *target, size_t length)
 Read data from the stream until the target string of given length is found. More...
 
bool findUntil (const char *target, const char *terminator)
 As find() but search ends if the terminator string is found. More...
 
bool findUntil (const char *target, size_t targetLen, const char *terminate, size_t termLen)
 As findUntil(const char*, const char*) but search ends if the terminate string is found. More...
 
long parseInt ()
 Returns the first valid (long) integer value from the current position. More...
 
float parseFloat ()
 float version of parseInt More...
 
size_t readBytes (uint8_t *buffer, size_t length)
 
size_t readBytesUntil (char terminator, char *buffer, size_t length)
 As readBytes() with terminator character. More...
 
String readStringUntil (char terminator)
 
virtual int indexOf (char c)
 
- Public Member Functions inherited from Print
 Print ()
 
 Print (const Print &)=delete
 
 Print (Print &&)=delete
 
virtual ~Print ()
 
Printoperator= (const Print &)=delete
 
Printoperator= (Print &&)=delete
 
int getWriteError ()
 Gets last error. More...
 
void clearWriteError ()
 Clears the last write error. More...
 
size_t write (const char *str)
 Writes a c-string to output stream. More...
 
virtual size_t write (const uint8_t *buffer, size_t size)
 Writes characters from a buffer to output stream. More...
 
size_t write (const char *buffer, size_t size)
 Writes characters from a buffer to output stream. More...
 
size_t print (char c)
 Prints a single character to output stream. More...
 
size_t print (const char str[])
 Prints a c-string to output stream. More...
 
size_t print (double num, int digits=2)
 Print a floating-point number to output stream. More...
 
template<typename T >
std::enable_if< has_printTo< T >::value, size_t >::type print (const T &obj)
 Prints a Printable object to output stream. More...
 
size_t print (const String &s)
 Prints a String to output stream. More...
 
template<typename E >
std::enable_if< std::is_enum< E >::value &&!std::is_convertible< E, int >::value, size_t >::type print (E value)
 enums can be printed as strings provided they have a toString(E) implementation. More...
 
size_t println ()
 Prints a newline to output stream. More...
 
template<typename... Args>
size_t println (const Args &... args)
 Print value plus newline to output stream. More...
 
size_t printf (const char *fmt,...)
 Prints a formatted c-string to output stream. More...
 
size_t print (unsigned long num, uint8_t base=DEC)
 
template<typename... Args>
size_t print (unsigned long num, Args... args)
 
template<typename... Args>
size_t print (const unsigned long long &num, Args... args)
 
size_t print (long num, uint8_t base=DEC)
 
template<typename... Args>
size_t print (long num, Args... args)
 
template<typename... Args>
size_t print (const long long &num, Args... args)
 
template<typename... Args>
size_t print (unsigned int num, Args... args)
 
template<typename... Args>
size_t print (unsigned char num, Args... args)
 
template<typename... Args>
size_t print (int num, Args... args)
 

Protected Member Functions

size_t transform (const uint8_t *source, size_t sourceLength, uint8_t *target, size_t targetLength) override
 Inherited class implements this method to transform a block of data. More...
 
- Protected Member Functions inherited from Stream
int timedRead ()
 
int timedPeek ()
 
int peekNextDigit ()
 returns the next numeric digit in the stream or -1 if timeout More...
 
long parseInt (char skipChar)
 Like regular parseInt() but the given skipChar is ignored. More...
 
float parseFloat (char skipChar)
 Like parseInt(skipChar) for float. More...
 
- Protected Member Functions inherited from Print
void setWriteError (int err=1)
 

Additional Inherited Members

- Protected Attributes inherited from Stream
uint16_t receiveTimeout = 1000
 number of milliseconds to wait for the next char before aborting timed read More...
 

Detailed Description

Read-only stream to obtain data using HTTP chunked encoding.

Used where total length of stream is not known in advance

Constructor & Destructor Documentation

◆ ChunkedStream()

ChunkedStream::ChunkedStream ( IDataSourceStream stream,
size_t  resultSize = 512 
)

Member Function Documentation

◆ transform()

size_t ChunkedStream::transform ( const uint8_t *  in,
size_t  inLength,
uint8_t *  out,
size_t  outLength 
)
overrideprotectedvirtual

Inherited class implements this method to transform a block of data.

Parameters
insource data
inLengthsource data length
outoutput buffer
outLengthsize of output buffer
Return values
size_tnumber of output bytes written
Note
Called with in = nullptr and inLength = 0 at end of input stream

Implements StreamTransformer.


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