xiaorui qu / HTTPClient

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HTTPFile Class Reference
Public Member Functions | Protected Member Functions | Friends

HTTPFile Class Reference

A file handling mechanism - downloads files to a locally accessible file system. More...

#include <HTTPFile.h>

Inherits IHTTPDataIn.

Public Member Functions

 HTTPFile (char *filename)
 Instantiate HTTPFile with a specified file on a locally accessible file system.
void close ()
 Closes the file, should be called once the http connection is closed.

Protected Member Functions

virtual void writeReset ()
 Reset stream to its beginning Called by the HTTPClient on each new request.
virtual int write (const char *buf, size_t len)
 Write a piece of data transmitted by the server.
virtual void setDataType (const char *type)
 Set MIME type.
virtual void setIsChunked (bool chunked)
 Determine whether the data is chunked Recovered from Transfer-Encoding header.
virtual void setDataLen (size_t len)
 If the data is not chunked, set its size From Content-Length header.

Friends

class HTTPClient

Detailed Description

A file handling mechanism - downloads files to a locally accessible file system.

Definition at line 8 of file HTTPFile.h.

Constructor & Destructor Documentation

HTTPFile ( char *  filename )

Instantiate HTTPFile with a specified file on a locally accessible file system. 

 HTTPFile latest("/local/status.txt");
 HTTPErrorCode = http.get("http://server.dom/path/serverstatus.txt", &latest);
 if (HTTPErrorCode == HTTP_OK) {
    ... // file successfully downloaded
 }
Parameters:
filenameis the fully qualified filename to create.

Definition at line 17 of file HTTPFile.cpp.

Member Function Documentation

void close (  )

Closes the file, should be called once the http connection is closed.

Definition at line 23 of file HTTPFile.cpp.

void setDataLen ( size_t  len ) [protected, virtual]

If the data is not chunked, set its size From Content-Length header.

Parameters:
[in]lendefines the size of the non-chunked transfer.

Implements IHTTPDataIn.

Definition at line 65 of file HTTPFile.cpp.

void setDataType ( const char *  type ) [protected, virtual]

Set MIME type.

Parameters:
[in]typeInternet media type from Content-Type header

Implements IHTTPDataIn.

Definition at line 52 of file HTTPFile.cpp.

void setIsChunked ( bool  chunked ) [protected, virtual]

Determine whether the data is chunked Recovered from Transfer-Encoding header.

Parameters:
[in]chunkedindicates the transfer is chunked.

Implements IHTTPDataIn.

Definition at line 60 of file HTTPFile.cpp.

int write ( const char *  buf,
size_t  len 
) [protected, virtual]

Write a piece of data transmitted by the server.

Parameters:
[in]bufPointer to the buffer from which to copy the data
[in]lenLength of the buffer
Returns:
number of bytes written.

Implements IHTTPDataIn.

Definition at line 38 of file HTTPFile.cpp.

void writeReset (  ) [protected, virtual]

Reset stream to its beginning Called by the HTTPClient on each new request.

Implements IHTTPDataIn.

Definition at line 31 of file HTTPFile.cpp.

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