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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <oox/helper/storagebase.hxx>
#include <com/sun/star/io/XStream.hpp>
#include <osl/diagnose.h>
#include <rtl/ustrbuf.hxx>
#include <oox/helper/binaryinputstream.hxx>
#include <oox/helper/binaryoutputstream.hxx>
#include <utility>
namespace oox {
using namespace ::com::sun::star::embed;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::uno;
namespace {
void lclSplitFirstElement( OUString& orElement, OUString& orRemainder, const OUString& _aFullName )
{
OUString aFullName = _aFullName;
sal_Int32 nSlashPos = aFullName.indexOf( '/' );
// strip leading slashes
while( nSlashPos == 0 )
{
aFullName = aFullName.copy(1);
nSlashPos = aFullName.indexOf( '/' );
}
if( (0 <= nSlashPos) && (nSlashPos < aFullName.getLength()) )
{
orElement = aFullName.copy( 0, nSlashPos );
orRemainder = aFullName.copy( nSlashPos + 1 );
}
else
{
orElement = aFullName;
}
}
} // namespace
StorageBase::StorageBase( const Reference< XInputStream >& rxInStream, bool bBaseStreamAccess ) :
mxInStream( rxInStream ),
mbBaseStreamAccess( bBaseStreamAccess ),
mbReadOnly( true )
{
OSL_ENSURE( mxInStream.is(), "StorageBase::StorageBase - missing base input stream" );
}
StorageBase::StorageBase( const Reference< XStream >& rxOutStream, bool bBaseStreamAccess ) :
mxOutStream( rxOutStream ),
mbBaseStreamAccess( bBaseStreamAccess ),
mbReadOnly( false )
{
OSL_ENSURE( mxOutStream.is(), "StorageBase::StorageBase - missing base output stream" );
}
StorageBase::StorageBase( const StorageBase& rParentStorage, OUString aStorageName, bool bReadOnly ) :
maParentPath( rParentStorage.getPath() ),
maStorageName(std::move( aStorageName )),
mbBaseStreamAccess( false ),
mbReadOnly( bReadOnly )
{
}
StorageBase::~StorageBase()
{
}
bool StorageBase::isStorage() const
{
return implIsStorage();
}
bool StorageBase::isRootStorage() const
{
return implIsStorage() && maStorageName.isEmpty();
}
Reference< XStorage > StorageBase::getXStorage() const
{
return implGetXStorage();
}
OUString StorageBase::getPath() const
{
OUStringBuffer aBuffer( maParentPath );
if( !aBuffer.isEmpty() )
aBuffer.append( '/' );
aBuffer.append( maStorageName );
return aBuffer.makeStringAndClear();
}
void StorageBase::getElementNames( ::std::vector< OUString >& orElementNames ) const
{
orElementNames.clear();
implGetElementNames( orElementNames );
}
StorageRef StorageBase::openSubStorage( const OUString& rStorageName, bool bCreateMissing )
{
StorageRef xSubStorage;
OSL_ENSURE( !bCreateMissing || !mbReadOnly, "StorageBase::openSubStorage - cannot create substorage in read-only mode" );
if( !bCreateMissing || !mbReadOnly )
{
OUString aElement, aRemainder;
lclSplitFirstElement( aElement, aRemainder, rStorageName );
if( !aElement.isEmpty() )
xSubStorage = getSubStorage( aElement, bCreateMissing );
if( xSubStorage && !aRemainder.isEmpty() )
xSubStorage = xSubStorage->openSubStorage( aRemainder, bCreateMissing );
}
return xSubStorage;
}
Reference< XInputStream > StorageBase::openInputStream( const OUString& rStreamName )
{
Reference< XInputStream > xInStream;
OUString aElement, aRemainder;
lclSplitFirstElement( aElement, aRemainder, rStreamName );
if( !aElement.isEmpty() )
{
if( !aRemainder.isEmpty() )
{
StorageRef xSubStorage = getSubStorage( aElement, false );
if( xSubStorage )
xInStream = xSubStorage->openInputStream( aRemainder );
}
else
{
xInStream = implOpenInputStream( aElement );
}
}
else if( mbBaseStreamAccess )
{
xInStream = mxInStream;
}
return xInStream;
}
Reference< XOutputStream > StorageBase::openOutputStream( const OUString& rStreamName )
{
Reference< XOutputStream > xOutStream;
OSL_ENSURE( !mbReadOnly, "StorageBase::openOutputStream - cannot create output stream in read-only mode" );
if( !mbReadOnly )
{
OUString aElement, aRemainder;
lclSplitFirstElement( aElement, aRemainder, rStreamName );
if( !aElement.isEmpty() )
{
if( !aRemainder.isEmpty() )
{
StorageRef xSubStorage = getSubStorage( aElement, true );
if( xSubStorage )
xOutStream = xSubStorage->openOutputStream( aRemainder );
}
else
{
xOutStream = implOpenOutputStream( aElement );
}
}
else if( mbBaseStreamAccess )
{
xOutStream = mxOutStream->getOutputStream();
}
}
return xOutStream;
}
void StorageBase::copyToStorage( StorageBase& rDestStrg, const OUString& rElementName )
{
OSL_ENSURE( rDestStrg.isStorage() && !rDestStrg.isReadOnly(), "StorageBase::copyToStorage - invalid destination" );
OSL_ENSURE( !rElementName.isEmpty(), "StorageBase::copyToStorage - invalid element name" );
if( !rDestStrg.isStorage() || rDestStrg.isReadOnly() || rElementName.isEmpty() )
return;
StorageRef xSubStrg = openSubStorage( rElementName, false );
if( xSubStrg )
{
StorageRef xDestSubStrg = rDestStrg.openSubStorage( rElementName, true );
if( xDestSubStrg )
xSubStrg->copyStorageToStorage( *xDestSubStrg );
}
else
{
Reference< XInputStream > xInStrm = openInputStream( rElementName );
if( xInStrm.is() )
{
Reference< XOutputStream > xOutStrm = rDestStrg.openOutputStream( rElementName );
if( xOutStrm.is() )
{
BinaryXInputStream aInStrm( xInStrm, true );
BinaryXOutputStream aOutStrm( xOutStrm, true );
aInStrm.copyToStream( aOutStrm );
}
}
}
}
void StorageBase::copyStorageToStorage( StorageBase& rDestStrg )
{
OSL_ENSURE( rDestStrg.isStorage() && !rDestStrg.isReadOnly(), "StorageBase::copyToStorage - invalid destination" );
if( rDestStrg.isStorage() && !rDestStrg.isReadOnly() )
{
::std::vector< OUString > aElements;
getElementNames( aElements );
for (auto const& elem : aElements)
copyToStorage(rDestStrg, elem);
}
}
void StorageBase::commit()
{
OSL_ENSURE( !mbReadOnly, "StorageBase::commit - cannot commit in read-only mode" );
if( !mbReadOnly )
{
// commit all open substorages
maSubStorages.forEachMem( &StorageBase::commit );
// commit this storage
implCommit();
}
}
// private --------------------------------------------------------------------
StorageRef StorageBase::getSubStorage( const OUString& rElementName, bool bCreateMissing )
{
StorageRef& rxSubStrg = maSubStorages[ rElementName ];
if( !rxSubStrg )
rxSubStrg = implOpenSubStorage( rElementName, bCreateMissing );
return rxSubStrg;
}
} // namespace oox
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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