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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _PSTM_HXX
#define _PSTM_HXX
#include <hash_map>
#include "tools/toolsdllapi.h"
#ifndef _TABLE_HXX
#include <tools/table.hxx>
#endif
#ifndef _INQIDX_HXX
#include <tools/unqidx.hxx>
#endif
#include <tools/ref.hxx>
#include <tools/rtti.hxx>
#include <tools/stream.hxx>
#define ERRCODE_IO_NOFACTORY ERRCODE_IO_WRONGFORMAT
/*************************************************************************
*************************************************************************/
class SvPersistBase;
typedef void * (*SvCreateInstancePersist)( SvPersistBase ** );
#define SV_CLASS_REGISTER( Class ) \
Register( Class::StaticClassId(), Class::CreateInstance )
class TOOLS_DLLPUBLIC SvClassManager
{
typedef std::hash_map< USHORT, SvCreateInstancePersist > Map;
Map aAssocTable;
public:
void Register( USHORT nClassId, SvCreateInstancePersist pFunc );
SvCreateInstancePersist Get( USHORT nClassId );
};
/************************** S v R t t i B a s e **************************/
/*
#if defined (DOS) && defined (STC)
#ifdef WIN
#error Fuer Win muss der Kram virtual sein (MM/MH)
#endif
class SvRttiBase : public SvRefBase
#else
class SvRttiBase : virtual public SvRefBase
#endif
*/
class TOOLS_DLLPUBLIC SvRttiBase : public SvRefBase
{
public:
TYPEINFO();
};
SV_DECL_IMPL_REF(SvRttiBase)
/*************************************************************************/
#define SV_DECL_PERSIST( Class, CLASS_ID ) \
TYPEINFO(); \
static USHORT StaticClassId() { return CLASS_ID; } \
static void * CreateInstance( SvPersistBase ** ppBase ); \
friend SvPersistStream& operator >> ( SvPersistStream & rStm, \
Class *& rpObj); \
virtual USHORT GetClassId() const; \
virtual void Load( SvPersistStream & ); \
virtual void Save( SvPersistStream & );
#define SV_DECL_PERSIST1( Class, Super1, CLASS_ID ) \
SV_DECL_PERSIST( Class, CLASS_ID )
#define PRV_SV_IMPL_PERSIST( Class ) \
void * Class::CreateInstance( SvPersistBase ** ppBase )\
{ \
Class * p = new Class(); \
*ppBase = p; \
return p; \
} \
USHORT Class::GetClassId() const \
{ return StaticClassId(); } \
SvPersistStream& operator >> (SvPersistStream & rStm, Class *& rpObj)\
{ \
SvPersistBase * pObj; \
rStm >> pObj; \
rpObj = PTR_CAST( Class, pObj ); \
return rStm; \
}
#define SV_IMPL_PERSIST( Class ) \
TYPEINIT0( Class ) \
PRV_SV_IMPL_PERSIST( Class )
#define SV_IMPL_PERSIST1( Class, Super1 ) \
TYPEINIT1( Class, Super1 ) \
PRV_SV_IMPL_PERSIST( Class )
/*************************************************************************/
class SvPersistStream;
class SvPersistBase : public SvRttiBase
{
public:
virtual USHORT GetClassId() const = 0;
virtual void Load( SvPersistStream & ) = 0;
virtual void Save( SvPersistStream & ) = 0;
TOOLS_DLLPUBLIC friend SvPersistStream& operator >> ( SvPersistStream & rStm,
SvPersistBase *& rpObj );
};
SV_DECL_IMPL_REF(SvPersistBase)
/*************************************************************************/
// Damit die Liste, anders benannt wird
typedef SvPersistBase SuperSvPersistBase;
SV_DECL_REF_LIST_VISIBILITY(SuperSvPersistBase,SuperSvPersistBase*,TOOLS_DLLPUBLIC)
SV_IMPL_REF_LIST(SuperSvPersistBase,SuperSvPersistBase*)
class TOOLS_DLLPUBLIC SvPersistBaseMemberList : public SuperSvPersistBaseMemberList
{
public:
SvPersistBaseMemberList();
SvPersistBaseMemberList(USHORT nInitSz, USHORT nResize );
void WriteObjects( SvPersistStream &, BOOL bOnlyStreamedObj = FALSE ) const;
TOOLS_DLLPUBLIC friend SvPersistStream& operator << (SvPersistStream &, const SvPersistBaseMemberList &);
TOOLS_DLLPUBLIC friend SvPersistStream& operator >> (SvPersistStream &, SvPersistBaseMemberList &);
};
/*************************************************************************/
#define SV_DECL_PERSIST_LIST(ClassName,EntryName)\
class ClassName##MemberList : public SvPersistBaseMemberList\
{\
public:\
PRV_SV_DECL_MEMBER_LIST(ClassName,EntryName)\
};
#define SV_IMPL_PERSIST_LIST(ClassName,EntryName)\
PRV_SV_IMPL_MEMBER_LIST(ClassName,EntryName,SvPersistBaseMemberList)
#define SV_DECL_IMPL_PERSIST_LIST(ClassName,EntryName)\
SV_DECL_PERSIST_LIST(ClassName,EntryName)\
SV_IMPL_PERSIST_LIST(ClassName,EntryName)
//#if 0 // _SOLAR__PRIVATE
DECLARE_UNIQUEINDEX( SvPersistUIdx,SvPersistBase *)
//#else
//typedef UniqueIndex SvPersistUIdx;
//#endif
//=========================================================================
class SvStream;
class TOOLS_DLLPUBLIC SvPersistStream : public SvStream
/* [Beschreibung]
Mit dieser Klasse k"onnen Laufzeit Objektstrukturen gespeichert
und geladen werden. Es m"ussen immer alle beteiligten Objekte
gespeichert oder geladen werden. Um die Objekte automatisch
laden zu k"onnen, wird eine Factory f"ur jede Klasse von Objekten,
die im Stream vorkommen k"onnen, ben"otigt. Die Liste aller Klassen
wird in einem <SvClassManager> Objekt gespeichert und dem
SvPersistStream "ubergeben, wenn er erzeugt wird.
Weiterhin wird die M"oglichkeit geboten UINT32 Werte komprimiert
zu schreiben und zu lesen (<SvPersistStream::WriteCompressed>,
<SvPersistStream::ReadCompressed>).
Es gibt auch die drei Hilfsmethoden <SvPersistStream::WriteDummyLen>,
<SvPersistStream::WriteLen> und <SvPersistStream::ReadLen> um eine
L"ange vor das Objekt zu schreiben.
[Beispiel]
Ein konkretes Beispiel ist im Konstruktor beschrieben.
Objekt A verweist auf B, dieses auf C und das wieder auf A.
C verweist auf D.
Die Reihenfolge beim Speichern und Laden ist egal, sie muss nur
gleich sein:
Speichern: Laden:
A,B,C,D A,B,C,D richtig
B,A,C,D B,A,C,D richtig
C,A,B,D A,B,C,D falsch
A,B,C,D A,B,C falsch
[Anmerkung]
Das Dateiformat zwischen DBG_UTIL und !DBG_UTIL ist unterschiedlich,
kann aber von beiden Versionen gelesen werden.
*/
{
SvClassManager & rClassMgr;
SvStream * pStm;
Table aPTable; // Pointer und Key gedreht
SvPersistUIdx aPUIdx;
ULONG nStartIdx;
const SvPersistStream * pRefStm;
UINT32 nFlags;
virtual ULONG GetData( void* pData, ULONG nSize );
virtual ULONG PutData( const void* pData, ULONG nSize );
virtual ULONG SeekPos( ULONG nPos );
virtual void FlushData();
protected:
ULONG GetCurMaxIndex( const SvPersistUIdx & ) const;
ULONG GetCurMaxIndex() const
{ return GetCurMaxIndex( aPUIdx ); }
void WriteObj( BYTE nHdr, SvPersistBase * pObj );
UINT32 ReadObj( SvPersistBase * & rpObj,
BOOL bRegister );
public:
BOOL IsStreamed( SvPersistBase * pObj ) const
{ return 0 != GetIndex( pObj ); }
virtual void ResetError();
SvPersistStream( SvClassManager &, SvStream * pStream,
UINT32 nStartIdx = 1 );
SvPersistStream( SvClassManager &, SvStream * pStream,
const SvPersistStream & rPersStm );
~SvPersistStream();
void SetStream( SvStream * pStream );
SvStream * GetStream() const { return pStm; }
virtual USHORT IsA() const;
SvPersistBase * GetObject( ULONG nIdx ) const;
ULONG GetIndex( SvPersistBase * ) const;
void SetContextFlags( UINT32 n ) { nFlags = n; }
UINT32 GetContextFlags() const { return nFlags; }
static void WriteCompressed( SvStream & rStm, UINT32 nVal );
static UINT32 ReadCompressed( SvStream & rStm );
UINT32 WriteDummyLen();
void WriteLen( UINT32 nLenPos );
UINT32 ReadLen( UINT32 * pTestPos );
SvPersistStream& WritePointer( SvPersistBase * pObj );
SvPersistStream& ReadPointer( SvPersistBase * & rpObj );
TOOLS_DLLPUBLIC friend SvPersistStream& operator << (SvPersistStream &, SvPersistBase *);
TOOLS_DLLPUBLIC friend SvPersistStream& operator >> (SvPersistStream &, SvPersistBase * &);
// Objekte halten ihre Id's w"ahrend geladen und
// gespeichert werden.
friend SvStream& operator >> ( SvStream &, SvPersistStream & );
friend SvStream& operator << ( SvStream &, SvPersistStream & );
ULONG InsertObj( SvPersistBase * );
ULONG RemoveObj( SvPersistBase * );
};
#endif // _PSTM_HXX
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