asdmbinaries::SDMDataObjectReader Class Reference

A class to read a MIME message containing ALMA binary data and provide a view on these binary data through an instance of SDMDataObject. More...

#include <SDMDataObjectReader.h>

List of all members.

Public Member Functions
	SDMDataObjectReader ()
	An empty constructor.
virtual	~SDMDataObjectReader ()
	The destructor.
const SDMDataObject &	read (string filename)
	This method reads a MIME message contained in a disk file and returns a reference to an SDMDataObject.
const SDMDataObject &	read (const char *buffer, unsigned long int size, bool fromFile=false)
	This method reads a MIME message contained in a memory buffer and returns a reference to an SDMDataObject.
const SDMDataObject &	ref () const
	This method returns a reference to the SDMDataObject instance built during the execution of the read method.
const SDMDataObject *	ptr () const
	This method returns a pointer to the SDMDataObject instance built during the execution of the read method.
void	done ()
	A method to release the resources allocated by the read operation.
Private Types
enum	READ { UNKNOWN_, MEMORY_, FILE_ }
enum	BINATTACHCODES { ACTUALDURATIONS, ACTUALTIMES, AUTODATA, FLAGS, CROSSDATA, ZEROLAGS }
Private Member Functions
void	init ()
string::size_type	find (const string &s)
bool	compare (const string &s)
bool	EOD ()
string	extractXMLHeader (const string &boundary)
void	tokenize (const string &str, vector< string > &tokens, const string &delimiters)
void	getFields (const string &header, map< string, string > &fields)
string	getContentID ()
string	getContentLocation ()
void	processMIME ()
void	processMIMESDMDataHeader ()
void	processMIMESDMDataSubsetHeader (SDMDataSubset &sdmDataSubset)
void	processMIMEIntegrations ()
void	processMIMEIntegration ()
void	processMIMESubscan ()
void	processBinaryAttachment (const string &boundary, const SDMDataSubset &sdmDataSubset)
const SDMDataObject &	sdmDataObject ()
Static Private Member Functions
static bool	initClass ()
Private Attributes
READ	read_
int	filedes_
unsigned int	dataSize_
char *	data_
string::size_type	position_
string::size_type	lastPosition_
string::size_type	endPosition_
unsigned int	integrationNum_
unsigned int	scanNum_
SDMDataObjectParser	parser_
	SDMDataObject related stuff.
SDMDataObject	sdmDataObject_
bitset< 6 >	attachmentFlags
const ACTUALTIMESTYPE *	actualTimes_
unsigned long int	nActualTimes_
const ACTUALDURATIONSTYPE *	actualDurations_
unsigned long int	nActualDurations_
const ZEROLAGSTYPE *	zeroLags_
unsigned long int	nZeroLags_
const FLAGSTYPE *	flags_
unsigned long int	nFlags_
const INTCROSSDATATYPE *	longCrossData_
const SHORTCROSSDATATYPE *	shortCrossData_
const FLOATCROSSDATATYPE *	floatCrossData_
unsigned long int	nCrossData_
const AUTODATATYPE *	autoData_
unsigned long int	nAutoData_
Static Private Attributes
static const bool	initClass_
static const string	MIMEBOUNDARY_1
	Two strings used as MIME boundaries.
static const string	MIMEBOUNDARY_2
static const regex	CONTENTIDDATASTRUCTUREREGEXP
	Regular expressions used to identify a Content-ID field in a MIME header.
static const regex	CONTENTIDSUBSETREGEXP
static const regex	CONTENTIDBINREGEXP
static const regex	CONTENTIDBINREGEXP1
static const regex	CONTENTIDBINREGEXP2
static set< string >	BINATTACHNAMES
	Set of valid binary attachment names.
static map< string, BINATTACHCODES >	name2code

Detailed Description

A class to read a MIME message containing ALMA binary data and provide a view on these binary data through an instance of SDMDataObject.

An instance of a SDMDataObjectReader can read MIME messages stored in a file or in a memory buffer, via two different versions of the read() method. The binary data read can be Total Power or Correlator (integration and subintegration) data. Once the data obtained by a call to a read method are not needed any more the done() method must be called to release the resources allocated to access the data.

Definition at line 112 of file SDMDataObjectReader.h.

Member Enumeration Documentation

enum asdmbinaries::SDMDataObjectReader::BINATTACHCODES [private]

Enumerator:

ACTUALDURATIONS
ACTUALTIMES
AUTODATA
FLAGS
CROSSDATA
ZEROLAGS

Definition at line 200 of file SDMDataObjectReader.h.

enum asdmbinaries::SDMDataObjectReader::READ [private]

Enumerator:

UNKNOWN_
MEMORY_
FILE_

Definition at line 167 of file SDMDataObjectReader.h.

Constructor & Destructor Documentation

asdmbinaries::SDMDataObjectReader::SDMDataObjectReader ( )

An empty constructor.

virtual asdmbinaries::SDMDataObjectReader::~SDMDataObjectReader ( ) [virtual]

The destructor.

Member Function Documentation

bool asdmbinaries::SDMDataObjectReader::compare ( const string & s ) [private]

void asdmbinaries::SDMDataObjectReader::done ( )

A method to release the resources allocated by the read operation.

This method must be called once the SDMDataObject built by the read method is no more needed.

bool asdmbinaries::SDMDataObjectReader::EOD ( ) [private]

string asdmbinaries::SDMDataObjectReader::extractXMLHeader ( const string & boundary ) [private]

string::size_type asdmbinaries::SDMDataObjectReader::find ( const string & s ) [private]

string asdmbinaries::SDMDataObjectReader::getContentID ( ) [private]

string asdmbinaries::SDMDataObjectReader::getContentLocation ( ) [private]

void asdmbinaries::SDMDataObjectReader::getFields	(	const string &	header,
		map< string, string > &	fields
	)			`[private]`

void asdmbinaries::SDMDataObjectReader::init ( ) [private]

static bool asdmbinaries::SDMDataObjectReader::initClass ( ) [static, private]

void asdmbinaries::SDMDataObjectReader::processBinaryAttachment	(	const string &	boundary,
		const SDMDataSubset &	sdmDataSubset
	)			`[private]`

void asdmbinaries::SDMDataObjectReader::processMIME ( ) [private]

void asdmbinaries::SDMDataObjectReader::processMIMEIntegration ( ) [private]

void asdmbinaries::SDMDataObjectReader::processMIMEIntegrations ( ) [private]

void asdmbinaries::SDMDataObjectReader::processMIMESDMDataHeader ( ) [private]

void asdmbinaries::SDMDataObjectReader::processMIMESDMDataSubsetHeader ( SDMDataSubset & sdmDataSubset ) [private]

void asdmbinaries::SDMDataObjectReader::processMIMESubscan ( ) [private]

const SDMDataObject* asdmbinaries::SDMDataObjectReader::ptr ( ) const

This method returns a pointer to the SDMDataObject instance built during the execution of the read method.

Returns:: a reference to an SDMDataObject.

Exceptions:

SDMDataObjectReaderException.

const SDMDataObject& asdmbinaries::SDMDataObjectReader::read	(	const char *	buffer,
		unsigned long int	size,
		bool	fromFile = `false`
	)

This method reads a MIME message contained in a memory buffer and returns a reference to an SDMDataObject.

Parameters:

	buffer	the adress of the buffer containing the MIME message.
	size	the size in bytes of that buffer.
	fromFile	a bool to indicate if the buffer is actually the result of a mapping of a file to virtual memory (false by default).