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268 lines
10 KiB
C++
268 lines
10 KiB
C++
// Created on: 1996-11-25
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// Created by: Christophe LEYNADIER
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// Copyright (c) 1996-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Storage_BaseDriver_HeaderFile
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#define _Storage_BaseDriver_HeaderFile
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#include <Standard_Type.hxx>
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#include <Storage_OpenMode.hxx>
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#include <Storage_Error.hxx>
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#include <Storage_Data.hxx>
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#include <Storage_Position.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <TColStd_SequenceOfAsciiString.hxx>
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#include <TColStd_SequenceOfExtendedString.hxx>
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class TCollection_ExtendedString;
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DEFINE_STANDARD_HANDLE(Storage_BaseDriver,Standard_Transient)
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//! Root class for drivers. A driver assigns a physical container
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//! to data to be stored or retrieved, for instance a file.
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//! The FSD package provides two derived concrete classes :
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//! - FSD_File is a general driver which defines a
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//! file as the container of data.
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class Storage_BaseDriver : public Standard_Transient
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{
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public:
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DEFINE_STANDARD_RTTIEXT(Storage_BaseDriver,Standard_Transient)
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public:
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Standard_EXPORT virtual ~Storage_BaseDriver();
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TCollection_AsciiString Name() const { return myName; }
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Storage_OpenMode OpenMode() const { return myOpenMode; }
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Standard_EXPORT static TCollection_AsciiString ReadMagicNumber(Standard_IStream& theIStream);
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public:
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//!@name Virtual methods, to be provided by descendants
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Standard_EXPORT virtual Storage_Error Open (const TCollection_AsciiString& aName, const Storage_OpenMode aMode) = 0;
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//! returns True if we are at end of the stream
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Standard_EXPORT virtual Standard_Boolean IsEnd() = 0;
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//! return position in the file. Return -1 upon error.
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Standard_EXPORT virtual Storage_Position Tell() = 0;
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Standard_EXPORT virtual Storage_Error BeginWriteInfoSection() = 0;
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Standard_EXPORT virtual void WriteInfo (const Standard_Integer nbObj, const TCollection_AsciiString& dbVersion, const TCollection_AsciiString& date, const TCollection_AsciiString& schemaName, const TCollection_AsciiString& schemaVersion, const TCollection_ExtendedString& appName, const TCollection_AsciiString& appVersion, const TCollection_ExtendedString& objectType, const TColStd_SequenceOfAsciiString& userInfo) = 0;
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Standard_EXPORT virtual Storage_Error EndWriteInfoSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginReadInfoSection() = 0;
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Standard_EXPORT virtual void ReadInfo (Standard_Integer& nbObj, TCollection_AsciiString& dbVersion, TCollection_AsciiString& date, TCollection_AsciiString& schemaName, TCollection_AsciiString& schemaVersion, TCollection_ExtendedString& appName, TCollection_AsciiString& appVersion, TCollection_ExtendedString& objectType, TColStd_SequenceOfAsciiString& userInfo) = 0;
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Standard_EXPORT virtual void ReadCompleteInfo (Standard_IStream& theIStream, Handle(Storage_Data)& theData) = 0;
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Standard_EXPORT virtual Storage_Error EndReadInfoSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginWriteCommentSection() = 0;
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Standard_EXPORT virtual void WriteComment (const TColStd_SequenceOfExtendedString& userComments) = 0;
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Standard_EXPORT virtual Storage_Error EndWriteCommentSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginReadCommentSection() = 0;
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Standard_EXPORT virtual void ReadComment (TColStd_SequenceOfExtendedString& userComments) = 0;
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Standard_EXPORT virtual Storage_Error EndReadCommentSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginWriteTypeSection() = 0;
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Standard_EXPORT virtual void SetTypeSectionSize (const Standard_Integer aSize) = 0;
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Standard_EXPORT virtual void WriteTypeInformations (const Standard_Integer typeNum, const TCollection_AsciiString& typeName) = 0;
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Standard_EXPORT virtual Storage_Error EndWriteTypeSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginReadTypeSection() = 0;
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Standard_EXPORT virtual Standard_Integer TypeSectionSize() = 0;
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Standard_EXPORT virtual void ReadTypeInformations (Standard_Integer& typeNum, TCollection_AsciiString& typeName) = 0;
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Standard_EXPORT virtual Storage_Error EndReadTypeSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginWriteRootSection() = 0;
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Standard_EXPORT virtual void SetRootSectionSize (const Standard_Integer aSize) = 0;
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Standard_EXPORT virtual void WriteRoot (const TCollection_AsciiString& rootName, const Standard_Integer aRef, const TCollection_AsciiString& aType) = 0;
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Standard_EXPORT virtual Storage_Error EndWriteRootSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginReadRootSection() = 0;
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Standard_EXPORT virtual Standard_Integer RootSectionSize() = 0;
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Standard_EXPORT virtual void ReadRoot (TCollection_AsciiString& rootName, Standard_Integer& aRef, TCollection_AsciiString& aType) = 0;
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Standard_EXPORT virtual Storage_Error EndReadRootSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginWriteRefSection() = 0;
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Standard_EXPORT virtual void SetRefSectionSize (const Standard_Integer aSize) = 0;
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Standard_EXPORT virtual void WriteReferenceType (const Standard_Integer reference, const Standard_Integer typeNum) = 0;
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Standard_EXPORT virtual Storage_Error EndWriteRefSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginReadRefSection() = 0;
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Standard_EXPORT virtual Standard_Integer RefSectionSize() = 0;
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Standard_EXPORT virtual void ReadReferenceType (Standard_Integer& reference, Standard_Integer& typeNum) = 0;
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Standard_EXPORT virtual Storage_Error EndReadRefSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginWriteDataSection() = 0;
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Standard_EXPORT virtual void WritePersistentObjectHeader (const Standard_Integer aRef, const Standard_Integer aType) = 0;
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Standard_EXPORT virtual void BeginWritePersistentObjectData() = 0;
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Standard_EXPORT virtual void BeginWriteObjectData() = 0;
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Standard_EXPORT virtual void EndWriteObjectData() = 0;
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Standard_EXPORT virtual void EndWritePersistentObjectData() = 0;
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Standard_EXPORT virtual Storage_Error EndWriteDataSection() = 0;
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Standard_EXPORT virtual Storage_Error BeginReadDataSection() = 0;
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Standard_EXPORT virtual void ReadPersistentObjectHeader (Standard_Integer& aRef, Standard_Integer& aType) = 0;
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Standard_EXPORT virtual void BeginReadPersistentObjectData() = 0;
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Standard_EXPORT virtual void BeginReadObjectData() = 0;
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Standard_EXPORT virtual void EndReadObjectData() = 0;
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Standard_EXPORT virtual void EndReadPersistentObjectData() = 0;
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Standard_EXPORT virtual Storage_Error EndReadDataSection() = 0;
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Standard_EXPORT virtual void SkipObject() = 0;
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Standard_EXPORT virtual Storage_Error Close() = 0;
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public:
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//!@name Output methods
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Standard_EXPORT virtual Storage_BaseDriver& PutReference (const Standard_Integer aValue) = 0;
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Standard_EXPORT virtual Storage_BaseDriver& PutCharacter (const Standard_Character aValue) = 0;
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Storage_BaseDriver& operator << (const Standard_Character aValue)
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{
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return PutCharacter(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& PutExtCharacter(const Standard_ExtCharacter aValue) = 0;
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Storage_BaseDriver& operator << (const Standard_ExtCharacter aValue)
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{
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return PutExtCharacter(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& PutInteger(const Standard_Integer aValue) = 0;
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Storage_BaseDriver& operator << (const Standard_Integer aValue)
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{
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return PutInteger(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& PutBoolean(const Standard_Boolean aValue) = 0;
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Storage_BaseDriver& operator << (const Standard_Boolean aValue)
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{
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return PutBoolean(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& PutReal(const Standard_Real aValue) = 0;
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Storage_BaseDriver& operator << (const Standard_Real aValue)
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{
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return PutReal(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& PutShortReal(const Standard_ShortReal aValue) = 0;
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Storage_BaseDriver& operator << (const Standard_ShortReal aValue)
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{
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return PutShortReal(aValue);
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}
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public:
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//!@name Input methods
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Standard_EXPORT virtual Storage_BaseDriver& GetReference (Standard_Integer& aValue) = 0;
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Standard_EXPORT virtual Storage_BaseDriver& GetCharacter (Standard_Character& aValue) = 0;
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Storage_BaseDriver& operator >> (Standard_Character& aValue)
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{
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return GetCharacter(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& GetExtCharacter(Standard_ExtCharacter& aValue) = 0;
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Storage_BaseDriver& operator >> (Standard_ExtCharacter& aValue)
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{
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return GetExtCharacter(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& GetInteger(Standard_Integer& aValue) = 0;
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Storage_BaseDriver& operator >> (Standard_Integer& aValue)
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{
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return GetInteger(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& GetBoolean(Standard_Boolean& aValue) = 0;
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Storage_BaseDriver& operator >> (Standard_Boolean& aValue)
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{
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return GetBoolean(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& GetReal(Standard_Real& aValue) = 0;
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Storage_BaseDriver& operator >> (Standard_Real& aValue)
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{
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return GetReal(aValue);
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}
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Standard_EXPORT virtual Storage_BaseDriver& GetShortReal(Standard_ShortReal& aValue) = 0;
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Storage_BaseDriver& operator >> (Standard_ShortReal& aValue)
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{
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return GetShortReal(aValue);
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}
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protected:
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Standard_EXPORT Storage_BaseDriver();
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void SetName(const TCollection_AsciiString& aName) { myName = aName; }
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void SetOpenMode(const Storage_OpenMode aMode) { myOpenMode = aMode; }
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private:
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Storage_OpenMode myOpenMode;
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TCollection_AsciiString myName;
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};
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#endif // _Storage_BaseDriver_HeaderFile
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