Interface_FileReaderTool Class Reference

Defines services which are required to load an InterfaceModel from a File. Typically, it may firstly transform a system file into a FileReaderData object, then work on it, not longer considering file contents, to load an Interface Model. It may also work on a FileReaderData already loaded. More...

#include <Interface_FileReaderTool.hxx>

Inheritance diagram for Interface_FileReaderTool:

Public Member Functions
void	SetData (const occ::handle< Interface_FileReaderData > &reader, const occ::handle< Interface_Protocol > &protocol)
	Sets Data to a FileReaderData. Works with a Protocol.
occ::handle< Interface_Protocol >	Protocol () const
	Returns the Protocol given at creation time.
occ::handle< Interface_FileReaderData >	Data () const
	Returns the FileReaderData which is used to work.
void	SetModel (const occ::handle< Interface_InterfaceModel > &amodel)
	Stores a Model. Used when the Model has been loaded.
occ::handle< Interface_InterfaceModel >	Model () const
	Returns the stored Model.
void	SetMessenger (const occ::handle< Message_Messenger > &messenger)
	Sets Messenger used for outputting messages.
occ::handle< Message_Messenger >	Messenger () const
	Returns Messenger used for outputting messages. The returned object is guaranteed to be non-null; default is Message::Messenger().
void	SetTraceLevel (const int tracelev)
	Sets trace level used for outputting messages.
int	TraceLevel () const
	Returns trace level used for outputting messages.
void	SetErrorHandle (const bool err)
	Allows controlling whether exception raisings are handled If err is False, they are not (hence, dbx can take control) If err is True, they are, and they are traced (by putting on messenger Entity's Number and file record num) Default given at Model's creation time is True.
bool	ErrorHandle () const
	Returns ErrorHandle flag.
void	SetEntities ()
	Fills records with empty entities; once done, each entity can ask the FileReaderTool for any entity referenced through an identifier. Calls Recognize which is specific to each specific type of FileReaderTool.
virtual bool	Recognize (const int num, occ::handle< Interface_Check > &ach, occ::handle< Standard_Transient > &ent)=0
	Recognizes a record, given its number. Specific to each Interface; called by SetEntities. It can call the basic method RecognizeByLib. Returns False if recognition has failed, True else. <ach> has not to be filled if simply Recognition has failed : it must record true error messages : RecognizeByLib can generate error messages if NewRead is called.
bool	RecognizeByLib (const int num, Interface_GeneralLib &glib, Interface_ReaderLib &rlib, occ::handle< Interface_Check > &ach, occ::handle< Standard_Transient > &ent) const
	Recognizes a record with the help of Libraries. Can be used to implement the method Recognize. <rlib> is used to find Protocol and CaseNumber to apply <glib> performs the creation (by service NewVoid, or NewRead if NewVoid gave no result) <ach> is a check, which is transmitted to NewRead if it is called, gives a result but which is false <ent> is the result Returns False if recognition has failed, True else.
occ::handle< Standard_Transient >	UnknownEntity () const
	Provides an unknown entity, specific to the Interface called by SetEntities when Recognize has failed (Unknown alone) or by LoadModel when an Entity has caused a Fail on reading (to keep at least its literal description) Uses Protocol to do it.
occ::handle< Interface_InterfaceModel >	NewModel () const
	Creates an empty Model of the norm. Uses Protocol to do it.
void	LoadModel (const occ::handle< Interface_InterfaceModel > &amodel)
	Reads and fills Entities from the FileReaderData set by SetData to an InterfaceModel. It enchains required operations, the specific ones correspond to deferred methods (below) to be defined for each Norm. It manages also error recovery and trace. Remark : it calls SetModel. It Can raise any error which can occur during a load operation, unless Error Handling is set. This method can also be redefined if judged necessary.
occ::handle< Standard_Transient >	LoadedEntity (const int num)
	Reads, Fills and Returns one Entity read from a Record of the FileReaderData. This Method manages also case of Fail or Warning, by producing a ReportEntyty plus , for a Fail, a literal Content (as an UnknownEntity). Performs also Trace.
virtual void	BeginRead (const occ::handle< Interface_InterfaceModel > &amodel)=0
	Fills model's header; each Interface defines for its Model its own file header; this method fills it from FileReaderTool.+ It is called by AnalyseFile from InterfaceModel.
virtual bool	AnalyseRecord (const int num, const occ::handle< Standard_Transient > &anent, occ::handle< Interface_Check > &acheck)=0
	Fills an Entity, given record no; specific to each Interface, called by AnalyseFile from InterfaceModel (which manages its calling arguments) To work, each Interface can define a method in its proper Transient class, like this (given as an example) : AnalyseRecord (me : mutable; FR : in out FileReaderTool; num : Integer; acheck : in out Check) returns Boolean; and call it from AnalyseRecord.
virtual	~Interface_FileReaderTool ()
virtual void	EndRead (const occ::handle< Interface_InterfaceModel > &amodel)
	Ends file reading after reading all the entities default is doing nothing; redefinable as necessary.
void	Clear ()
	Clear fields.

Protected Member Functions
	Interface_FileReaderTool ()
	Constructor; sets default fields.

Detailed Description

Defines services which are required to load an InterfaceModel from a File. Typically, it may firstly transform a system file into a FileReaderData object, then work on it, not longer considering file contents, to load an Interface Model. It may also work on a FileReaderData already loaded.

FileReaderTool provides, on one hand, some general services which are common to all read operations but can be redefined, plus general actions to be performed specifically for each Norm, as deferred methods to define.

In particular, FileReaderTool defines the Interface's Unknown and Error entities

Constructor & Destructor Documentation

~Interface_FileReaderTool()

virtual Interface_FileReaderTool::~Interface_FileReaderTool ( )

virtual

Interface_FileReaderTool()

Interface_FileReaderTool::Interface_FileReaderTool ( )

protected

Constructor; sets default fields.

Member Function Documentation

AnalyseRecord()

virtual bool Interface_FileReaderTool::AnalyseRecord ( const int num, const occ::handle< Standard_Transient > & anent, occ::handle< Interface_Check > & acheck )

pure virtual

Fills an Entity, given record no; specific to each Interface, called by AnalyseFile from InterfaceModel (which manages its calling arguments) To work, each Interface can define a method in its proper Transient class, like this (given as an example) : AnalyseRecord (me : mutable; FR : in out FileReaderTool; num : Integer; acheck : in out Check) returns Boolean; and call it from AnalyseRecord.

Returned Value : True if the entity could be loaded, False else (in case of syntactic fail)

Implemented in IGESData_IGESReaderTool, and StepData_StepReaderTool.

BeginRead()

virtual void Interface_FileReaderTool::BeginRead ( const occ::handle< Interface_InterfaceModel > & amodel )

pure virtual

Fills model's header; each Interface defines for its Model its own file header; this method fills it from FileReaderTool.+ It is called by AnalyseFile from InterfaceModel.

Implemented in IGESData_IGESReaderTool, and StepData_StepReaderTool.

Clear()

void Interface_FileReaderTool::Clear

(

)

Clear fields.

Data()

occ::handle< Interface_FileReaderData > Interface_FileReaderTool::Data

(

)

const

Returns the FileReaderData which is used to work.

EndRead()

virtual void Interface_FileReaderTool::EndRead ( const occ::handle< Interface_InterfaceModel > & amodel )

virtual

Ends file reading after reading all the entities default is doing nothing; redefinable as necessary.

Reimplemented in IGESData_IGESReaderTool, and StepData_StepReaderTool.

ErrorHandle()

bool Interface_FileReaderTool::ErrorHandle

(

)

const

Returns ErrorHandle flag.

LoadedEntity()

occ::handle< Standard_Transient > Interface_FileReaderTool::LoadedEntity

(

const int

num

)

Reads, Fills and Returns one Entity read from a Record of the FileReaderData. This Method manages also case of Fail or Warning, by producing a ReportEntyty plus , for a Fail, a literal Content (as an UnknownEntity). Performs also Trace.

LoadModel()

void Interface_FileReaderTool::LoadModel

(

const occ::handle< Interface_InterfaceModel > &

amodel

)

Reads and fills Entities from the FileReaderData set by SetData to an InterfaceModel. It enchains required operations, the specific ones correspond to deferred methods (below) to be defined for each Norm. It manages also error recovery and trace. Remark : it calls SetModel. It Can raise any error which can occur during a load operation, unless Error Handling is set. This method can also be redefined if judged necessary.

Messenger()

occ::handle< Message_Messenger > Interface_FileReaderTool::Messenger

(

)

const

Returns Messenger used for outputting messages. The returned object is guaranteed to be non-null; default is Message::Messenger().

Model()

occ::handle< Interface_InterfaceModel > Interface_FileReaderTool::Model

(

)

const

Returns the stored Model.

NewModel()

occ::handle< Interface_InterfaceModel > Interface_FileReaderTool::NewModel

(

)

const

Creates an empty Model of the norm. Uses Protocol to do it.

Protocol()

occ::handle< Interface_Protocol > Interface_FileReaderTool::Protocol

(

)

const

Returns the Protocol given at creation time.

Recognize()

virtual bool Interface_FileReaderTool::Recognize ( const int num, occ::handle< Interface_Check > & ach, occ::handle< Standard_Transient > & ent )

pure virtual

Recognizes a record, given its number. Specific to each Interface; called by SetEntities. It can call the basic method RecognizeByLib. Returns False if recognition has failed, True else. <ach> has not to be filled if simply Recognition has failed : it must record true error messages : RecognizeByLib can generate error messages if NewRead is called.

Note that it works thru a Recognizer (method Evaluate) which has to be memorized before starting

Implemented in IGESData_IGESReaderTool, and StepData_StepReaderTool.

RecognizeByLib()

bool Interface_FileReaderTool::RecognizeByLib	(	const int	num,
		Interface_GeneralLib &	glib,
		Interface_ReaderLib &	rlib,
		occ::handle< Interface_Check > &	ach,
		occ::handle< Standard_Transient > &	ent ) const

Recognizes a record with the help of Libraries. Can be used to implement the method Recognize. <rlib> is used to find Protocol and CaseNumber to apply <glib> performs the creation (by service NewVoid, or NewRead if NewVoid gave no result) <ach> is a check, which is transmitted to NewRead if it is called, gives a result but which is false <ent> is the result Returns False if recognition has failed, True else.

SetData()

void Interface_FileReaderTool::SetData	(	const occ::handle< Interface_FileReaderData > &	reader,
		const occ::handle< Interface_Protocol > &	protocol )

Sets Data to a FileReaderData. Works with a Protocol.

SetEntities()

void Interface_FileReaderTool::SetEntities

(

)

Fills records with empty entities; once done, each entity can ask the FileReaderTool for any entity referenced through an identifier. Calls Recognize which is specific to each specific type of FileReaderTool.

SetErrorHandle()

void Interface_FileReaderTool::SetErrorHandle

(

const bool

err

)

Allows controlling whether exception raisings are handled If err is False, they are not (hence, dbx can take control) If err is True, they are, and they are traced (by putting on messenger Entity's Number and file record num) Default given at Model's creation time is True.

SetMessenger()

void Interface_FileReaderTool::SetMessenger

(

const occ::handle< Message_Messenger > &

messenger

)

Sets Messenger used for outputting messages.

SetModel()

void Interface_FileReaderTool::SetModel

(

const occ::handle< Interface_InterfaceModel > &

amodel

)

Stores a Model. Used when the Model has been loaded.

SetTraceLevel()

void Interface_FileReaderTool::SetTraceLevel

(

const int

tracelev

)

Sets trace level used for outputting messages.

• 0: no trace at all
• 1: errors
• 2: errors and warnings
• 3: all messages Default is 1 : Errors traced

TraceLevel()

int Interface_FileReaderTool::TraceLevel

(

)

const

Returns trace level used for outputting messages.

UnknownEntity()

occ::handle< Standard_Transient > Interface_FileReaderTool::UnknownEntity

(

)

const

Provides an unknown entity, specific to the Interface called by SetEntities when Recognize has failed (Unknown alone) or by LoadModel when an Entity has caused a Fail on reading (to keep at least its literal description) Uses Protocol to do it.

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

• Interface_FileReaderTool.hxx