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
More...

#include <Interface_FileReaderTool.hxx>

Inheritance diagram for Interface_FileReaderTool:

[legend]

Public Member Functions
void	SetData (const Handle< Interface_FileReaderData > &reader, const Handle< Interface_Protocol > &protocol)
	Sets Data to a FileReaderData. Works with a Protocol More...

Handle_Interface_Protocol	Protocol () const
	Returns the Protocol given at creation time More...

Handle_Interface_FileReaderData	Data () const
	Returns the FileReaderData which is used to work More...

void	SetModel (const Handle< Interface_InterfaceModel > &amodel)
	Stores a Model. Used when the Model has been loaded More...

Handle_Interface_InterfaceModel	Model () const
	Returns the stored Model More...

void	SetMessenger (const Handle< Message_Messenger > &messenger)
	Sets Messenger used for outputting messages More...

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

void	SetTraceLevel (const Standard_Integer tracelev)
	Sets trace level used for outputting messages More...

Standard_Integer	TraceLevel () const
	Returns trace level used for outputting messages. More...

void	SetErrorHandle (const Standard_Boolean 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 More...

Standard_Boolean	ErrorHandle () const
	Returns ErrorHandle flag More...

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 More...

virtual Standard_Boolean	Recognize (const Standard_Integer num, Handle< Interface_Check > &ach, Handle< Standard_Transient > &ent)=0
	Recognizes a record, given its number. Specific to each <br> Interface; called by SetEntities. It can call the basic method <br> RecognizeByLib. <br> Returns False if recognition has failed, True else. <br> <ach> has not to be filled if simply Recognition has failed : <br> it must record true error messages : RecognizeByLib can <br> generate error messages if NewRead is called <br> Note that it works thru a Recognizer (method Evaluate) which has to be memorized before starting More...

Standard_Boolean	RecognizeByLib (const Standard_Integer num, Interface_GeneralLib &glib, Interface_ReaderLib &rlib, Handle< Interface_Check > &ach, 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 More...

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 More...

Handle_Interface_InterfaceModel	NewModel () const
	Creates an empty Model of the norm. Uses Protocol to do it More...

void	LoadModel (const 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. More...

Handle_Standard_Transient	LoadedEntity (const Standard_Integer 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 More...

virtual void	BeginRead (const 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 More...

virtual Standard_Boolean	AnalyseRecord (const Standard_Integer num, const Handle< Standard_Transient > &anent, Handle< Interface_Check > &acheck)=0
	Fills an Entity, given record no; specific to each Interface, <br> called by AnalyseFile from InterfaceModel (which manages its <br> calling arguments) <br> To work, each Interface can define a method in its proper <br> Transient class, like this (given as an example) : <br> AnalyseRecord (me : mutable; FR : in out FileReaderTool; <br> num : Integer; acheck : in out Check) <br> returns Boolean; <br> and call it from AnalyseRecord <br> Returned Value : True if the entity could be loaded, False else (in case of syntactic fail) More...

virtual void	Destroy ()

virtual	~Interface_FileReaderTool ()

virtual void	EndRead (const Handle< Interface_InterfaceModel > &amodel)
	Ends file reading after reading all the entities default is doing nothing; redefinable as necessary More...

void	Clear ()
	Clear filelds More...

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

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

virtual Interface_FileReaderTool::~Interface_FileReaderTool ( )

inlinevirtual

Interface_FileReaderTool::Interface_FileReaderTool ( )

protected

Constructor; sets default fields

Member Function Documentation

virtual Standard_Boolean Interface_FileReaderTool::AnalyseRecord	(	const Standard_Integer	num,
		const Handle< Standard_Transient > &	anent,
		Handle< Interface_Check > &	acheck
	)

pure virtual

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

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

Implemented in IGESData_IGESReaderTool, and StepData_StepReaderTool.

virtual void Interface_FileReaderTool::BeginRead ( const 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.

void Interface_FileReaderTool::Clear ( )

Clear filelds

Handle_Interface_FileReaderData Interface_FileReaderTool::Data ( ) const

Returns the FileReaderData which is used to work

virtual void Interface_FileReaderTool::Destroy ( )

virtual

virtual void Interface_FileReaderTool::EndRead ( const 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.

Standard_Boolean Interface_FileReaderTool::ErrorHandle ( ) const

Returns ErrorHandle flag

Handle_Standard_Transient Interface_FileReaderTool::LoadedEntity ( const Standard_Integer 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

void Interface_FileReaderTool::LoadModel ( const 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.

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().

Handle_Interface_InterfaceModel Interface_FileReaderTool::Model ( ) const

Returns the stored Model

Handle_Interface_InterfaceModel Interface_FileReaderTool::NewModel ( ) const

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

Handle_Interface_Protocol Interface_FileReaderTool::Protocol ( ) const

Returns the Protocol given at creation time

virtual Standard_Boolean Interface_FileReaderTool::Recognize	(	const Standard_Integer	num,
		Handle< Interface_Check > &	ach,
		Handle< Standard_Transient > &	ent
	)

pure virtual

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

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

Implemented in IGESData_IGESReaderTool, and StepData_StepReaderTool.

Standard_Boolean Interface_FileReaderTool::RecognizeByLib	(	const Standard_Integer	num,
		Interface_GeneralLib &	glib,
		Interface_ReaderLib &	rlib,
		Handle< Interface_Check > &	ach,
		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

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

Sets Data to a FileReaderData. Works with a Protocol

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

void Interface_FileReaderTool::SetErrorHandle ( const Standard_Boolean 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

void Interface_FileReaderTool::SetMessenger ( const Handle< Message_Messenger > & messenger )

Sets Messenger used for outputting messages

void Interface_FileReaderTool::SetModel ( const Handle< Interface_InterfaceModel > & amodel )

Stores a Model. Used when the Model has been loaded

void Interface_FileReaderTool::SetTraceLevel ( const Standard_Integer 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

Standard_Integer Interface_FileReaderTool::TraceLevel ( ) const

Returns trace level used for outputting messages.

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

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

Interface_FileReaderTool.hxx

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation