274 lines
8.7 KiB
C++
274 lines
8.7 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "oox/helper/storagebase.hxx"
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#include <com/sun/star/io/XStream.hpp>
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#include <com/sun/star/embed/XTransactedObject.hpp>
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#include <rtl/ustrbuf.hxx>
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#include "oox/helper/binaryinputstream.hxx"
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#include "oox/helper/binaryoutputstream.hxx"
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using ::rtl::OUString;
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using ::rtl::OUStringBuffer;
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using ::com::sun::star::uno::Exception;
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::UNO_SET_THROW;
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using ::com::sun::star::embed::XStorage;
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using ::com::sun::star::embed::XTransactedObject;
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using ::com::sun::star::io::XInputStream;
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using ::com::sun::star::io::XOutputStream;
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using ::com::sun::star::io::XStream;
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namespace oox {
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// ============================================================================
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namespace {
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void lclSplitFirstElement( OUString& orElement, OUString& orRemainder, const OUString& rFullName )
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{
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sal_Int32 nSlashPos = rFullName.indexOf( '/' );
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if( (0 <= nSlashPos) && (nSlashPos < rFullName.getLength()) )
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{
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orElement = rFullName.copy( 0, nSlashPos );
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orRemainder = rFullName.copy( nSlashPos + 1 );
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}
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else
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{
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orElement = rFullName;
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}
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}
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} // namespace
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// ----------------------------------------------------------------------------
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StorageBase::StorageBase( const Reference< XInputStream >& rxInStream, bool bBaseStreamAccess ) :
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mxInStream( rxInStream ),
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mbBaseStreamAccess( bBaseStreamAccess ),
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mbReadOnly( true )
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{
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OSL_ENSURE( mxInStream.is(), "StorageBase::StorageBase - missing base input stream" );
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}
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StorageBase::StorageBase( const Reference< XStream >& rxOutStream, bool bBaseStreamAccess ) :
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mxOutStream( rxOutStream ),
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mbBaseStreamAccess( bBaseStreamAccess ),
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mbReadOnly( false )
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{
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OSL_ENSURE( mxOutStream.is(), "StorageBase::StorageBase - missing base output stream" );
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}
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StorageBase::StorageBase( const StorageBase& rParentStorage, const OUString& rStorageName, bool bReadOnly ) :
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maParentPath( rParentStorage.getPath() ),
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maStorageName( rStorageName ),
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mbBaseStreamAccess( false ),
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mbReadOnly( bReadOnly )
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{
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}
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StorageBase::~StorageBase()
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{
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}
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bool StorageBase::isStorage() const
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{
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return implIsStorage();
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}
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bool StorageBase::isRootStorage() const
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{
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return implIsStorage() && (maStorageName.getLength() == 0);
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}
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bool StorageBase::isReadOnly() const
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{
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return mbReadOnly;
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}
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Reference< XStorage > StorageBase::getXStorage() const
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{
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return implGetXStorage();
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}
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const OUString& StorageBase::getName() const
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{
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return maStorageName;
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}
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OUString StorageBase::getPath() const
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{
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OUStringBuffer aBuffer( maParentPath );
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if( aBuffer.getLength() > 0 )
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aBuffer.append( sal_Unicode( '/' ) );
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aBuffer.append( maStorageName );
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return aBuffer.makeStringAndClear();
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}
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void StorageBase::getElementNames( ::std::vector< OUString >& orElementNames ) const
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{
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orElementNames.clear();
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implGetElementNames( orElementNames );
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}
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StorageRef StorageBase::openSubStorage( const OUString& rStorageName, bool bCreateMissing )
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{
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StorageRef xSubStorage;
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OSL_ENSURE( !bCreateMissing || !mbReadOnly, "StorageBase::openSubStorage - cannot create substorage in read-only mode" );
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if( !bCreateMissing || !mbReadOnly )
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{
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OUString aElement, aRemainder;
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lclSplitFirstElement( aElement, aRemainder, rStorageName );
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if( aElement.getLength() > 0 )
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xSubStorage = getSubStorage( aElement, bCreateMissing );
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if( xSubStorage.get() && (aRemainder.getLength() > 0) )
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xSubStorage = xSubStorage->openSubStorage( aRemainder, bCreateMissing );
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}
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return xSubStorage;
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}
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Reference< XInputStream > StorageBase::openInputStream( const OUString& rStreamName )
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{
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Reference< XInputStream > xInStream;
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OUString aElement, aRemainder;
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lclSplitFirstElement( aElement, aRemainder, rStreamName );
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if( aElement.getLength() > 0 )
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{
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if( aRemainder.getLength() > 0 )
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{
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StorageRef xSubStorage = getSubStorage( aElement, false );
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if( xSubStorage.get() )
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xInStream = xSubStorage->openInputStream( aRemainder );
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}
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else
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{
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xInStream = implOpenInputStream( aElement );
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}
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}
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else if( mbBaseStreamAccess )
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{
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xInStream = mxInStream;
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}
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return xInStream;
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}
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Reference< XOutputStream > StorageBase::openOutputStream( const OUString& rStreamName )
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{
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Reference< XOutputStream > xOutStream;
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OSL_ENSURE( !mbReadOnly, "StorageBase::openOutputStream - cannot create output stream in read-only mode" );
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if( !mbReadOnly )
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{
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OUString aElement, aRemainder;
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lclSplitFirstElement( aElement, aRemainder, rStreamName );
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if( aElement.getLength() > 0 )
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{
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if( aRemainder.getLength() > 0 )
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{
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StorageRef xSubStorage = getSubStorage( aElement, true );
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if( xSubStorage.get() )
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xOutStream = xSubStorage->openOutputStream( aRemainder );
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}
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else
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{
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xOutStream = implOpenOutputStream( aElement );
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}
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}
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else if( mbBaseStreamAccess )
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{
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xOutStream = mxOutStream->getOutputStream();
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}
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}
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return xOutStream;
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}
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void StorageBase::copyToStorage( StorageBase& rDestStrg, const OUString& rElementName )
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{
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OSL_ENSURE( rDestStrg.isStorage() && !rDestStrg.isReadOnly(), "StorageBase::copyToStorage - invalid destination" );
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OSL_ENSURE( rElementName.getLength() > 0, "StorageBase::copyToStorage - invalid element name" );
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if( rDestStrg.isStorage() && !rDestStrg.isReadOnly() && (rElementName.getLength() > 0) )
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{
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StorageRef xSubStrg = openSubStorage( rElementName, false );
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if( xSubStrg.get() )
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{
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StorageRef xDestSubStrg = rDestStrg.openSubStorage( rElementName, true );
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if( xDestSubStrg.get() )
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xSubStrg->copyStorageToStorage( *xDestSubStrg );
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}
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else
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{
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Reference< XInputStream > xInStrm = openInputStream( rElementName );
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if( xInStrm.is() )
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{
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Reference< XOutputStream > xOutStrm = rDestStrg.openOutputStream( rElementName );
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if( xOutStrm.is() )
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{
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BinaryXInputStream aInStrm( xInStrm, true );
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BinaryXOutputStream aOutStrm( xOutStrm, true );
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aInStrm.copyToStream( aOutStrm );
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}
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}
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}
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}
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}
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void StorageBase::copyStorageToStorage( StorageBase& rDestStrg )
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{
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OSL_ENSURE( rDestStrg.isStorage() && !rDestStrg.isReadOnly(), "StorageBase::copyToStorage - invalid destination" );
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if( rDestStrg.isStorage() && !rDestStrg.isReadOnly() )
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{
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::std::vector< OUString > aElements;
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getElementNames( aElements );
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for( ::std::vector< OUString >::iterator aIt = aElements.begin(), aEnd = aElements.end(); aIt != aEnd; ++aIt )
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copyToStorage( rDestStrg, *aIt );
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}
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}
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void StorageBase::commit()
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{
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OSL_ENSURE( !mbReadOnly, "StorageBase::commit - cannot commit in read-only mode" );
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if( !mbReadOnly )
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{
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// commit all open substorages
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maSubStorages.forEachMem( &StorageBase::commit );
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// commit this storage
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implCommit();
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}
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}
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// private --------------------------------------------------------------------
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StorageRef StorageBase::getSubStorage( const OUString& rElementName, bool bCreateMissing )
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{
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StorageRef& rxSubStrg = maSubStorages[ rElementName ];
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if( !rxSubStrg )
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rxSubStrg = implOpenSubStorage( rElementName, bCreateMissing );
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return rxSubStrg;
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}
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// ============================================================================
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} // namespace oox
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