1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #include "oox/ole/olestorage.hxx" 29*cdf0e10cSrcweir 30*cdf0e10cSrcweir #include <com/sun/star/beans/PropertyValue.hpp> 31*cdf0e10cSrcweir #include <com/sun/star/container/XNameContainer.hpp> 32*cdf0e10cSrcweir #include <com/sun/star/embed/XTransactedObject.hpp> 33*cdf0e10cSrcweir #include <com/sun/star/io/XInputStream.hpp> 34*cdf0e10cSrcweir #include <com/sun/star/io/XOutputStream.hpp> 35*cdf0e10cSrcweir #include <com/sun/star/io/XSeekable.hpp> 36*cdf0e10cSrcweir #include <com/sun/star/io/XStream.hpp> 37*cdf0e10cSrcweir #include <com/sun/star/lang/XMultiServiceFactory.hpp> 38*cdf0e10cSrcweir #include <com/sun/star/uno/XComponentContext.hpp> 39*cdf0e10cSrcweir #include <cppuhelper/implbase2.hxx> 40*cdf0e10cSrcweir #include "oox/helper/binaryinputstream.hxx" 41*cdf0e10cSrcweir #include "oox/helper/binaryoutputstream.hxx" 42*cdf0e10cSrcweir #include "oox/helper/containerhelper.hxx" 43*cdf0e10cSrcweir #include "oox/helper/helper.hxx" 44*cdf0e10cSrcweir 45*cdf0e10cSrcweir namespace oox { 46*cdf0e10cSrcweir namespace ole { 47*cdf0e10cSrcweir 48*cdf0e10cSrcweir // ============================================================================ 49*cdf0e10cSrcweir 50*cdf0e10cSrcweir using namespace ::com::sun::star::beans; 51*cdf0e10cSrcweir using namespace ::com::sun::star::container; 52*cdf0e10cSrcweir using namespace ::com::sun::star::embed; 53*cdf0e10cSrcweir using namespace ::com::sun::star::io; 54*cdf0e10cSrcweir using namespace ::com::sun::star::lang; 55*cdf0e10cSrcweir using namespace ::com::sun::star::uno; 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir using ::rtl::OUString; 58*cdf0e10cSrcweir 59*cdf0e10cSrcweir // ============================================================================ 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir namespace { 62*cdf0e10cSrcweir 63*cdf0e10cSrcweir typedef ::cppu::WeakImplHelper2< XSeekable, XOutputStream > OleOutputStreamBase; 64*cdf0e10cSrcweir 65*cdf0e10cSrcweir /** Implementation of an OLE storage output stream that inserts itself into the 66*cdf0e10cSrcweir storage when it is closed. 67*cdf0e10cSrcweir */ 68*cdf0e10cSrcweir class OleOutputStream : public OleOutputStreamBase 69*cdf0e10cSrcweir { 70*cdf0e10cSrcweir public: 71*cdf0e10cSrcweir explicit OleOutputStream( 72*cdf0e10cSrcweir const Reference< XComponentContext >& rxContext, 73*cdf0e10cSrcweir const Reference< XNameContainer >& rxStorage, 74*cdf0e10cSrcweir const OUString& rElementName ); 75*cdf0e10cSrcweir virtual ~OleOutputStream(); 76*cdf0e10cSrcweir 77*cdf0e10cSrcweir virtual void SAL_CALL seek( sal_Int64 nPos ) throw( IllegalArgumentException, IOException, RuntimeException ); 78*cdf0e10cSrcweir virtual sal_Int64 SAL_CALL getPosition() throw( IOException, RuntimeException ); 79*cdf0e10cSrcweir virtual sal_Int64 SAL_CALL getLength() throw( IOException, RuntimeException ); 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& rData ) throw( NotConnectedException, BufferSizeExceededException, IOException, RuntimeException ); 82*cdf0e10cSrcweir virtual void SAL_CALL flush() throw( NotConnectedException, BufferSizeExceededException, IOException, RuntimeException ); 83*cdf0e10cSrcweir virtual void SAL_CALL closeOutput() throw( NotConnectedException, BufferSizeExceededException, IOException, RuntimeException ); 84*cdf0e10cSrcweir 85*cdf0e10cSrcweir private: 86*cdf0e10cSrcweir void ensureSeekable() const throw( IOException ); 87*cdf0e10cSrcweir void ensureConnected() const throw( NotConnectedException ); 88*cdf0e10cSrcweir 89*cdf0e10cSrcweir private: 90*cdf0e10cSrcweir Reference< XNameContainer > mxStorage; 91*cdf0e10cSrcweir Reference< XStream > mxTempFile; 92*cdf0e10cSrcweir Reference< XOutputStream > mxOutStrm; 93*cdf0e10cSrcweir Reference< XSeekable > mxSeekable; 94*cdf0e10cSrcweir OUString maElementName; 95*cdf0e10cSrcweir }; 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir // ---------------------------------------------------------------------------- 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir OleOutputStream::OleOutputStream( const Reference< XComponentContext >& rxContext, 100*cdf0e10cSrcweir const Reference< XNameContainer >& rxStorage, const OUString& rElementName ) : 101*cdf0e10cSrcweir mxStorage( rxStorage ), 102*cdf0e10cSrcweir maElementName( rElementName ) 103*cdf0e10cSrcweir { 104*cdf0e10cSrcweir try 105*cdf0e10cSrcweir { 106*cdf0e10cSrcweir Reference< XMultiServiceFactory > xFactory( rxContext->getServiceManager(), UNO_QUERY_THROW ); 107*cdf0e10cSrcweir mxTempFile.set( xFactory->createInstance( CREATE_OUSTRING( "com.sun.star.io.TempFile" ) ), UNO_QUERY_THROW ); 108*cdf0e10cSrcweir mxOutStrm = mxTempFile->getOutputStream(); 109*cdf0e10cSrcweir mxSeekable.set( mxOutStrm, UNO_QUERY ); 110*cdf0e10cSrcweir } 111*cdf0e10cSrcweir catch( Exception& ) 112*cdf0e10cSrcweir { 113*cdf0e10cSrcweir } 114*cdf0e10cSrcweir } 115*cdf0e10cSrcweir 116*cdf0e10cSrcweir OleOutputStream::~OleOutputStream() 117*cdf0e10cSrcweir { 118*cdf0e10cSrcweir } 119*cdf0e10cSrcweir 120*cdf0e10cSrcweir void SAL_CALL OleOutputStream::seek( sal_Int64 nPos ) throw( IllegalArgumentException, IOException, RuntimeException ) 121*cdf0e10cSrcweir { 122*cdf0e10cSrcweir ensureSeekable(); 123*cdf0e10cSrcweir mxSeekable->seek( nPos ); 124*cdf0e10cSrcweir } 125*cdf0e10cSrcweir 126*cdf0e10cSrcweir sal_Int64 SAL_CALL OleOutputStream::getPosition() throw( IOException, RuntimeException ) 127*cdf0e10cSrcweir { 128*cdf0e10cSrcweir ensureSeekable(); 129*cdf0e10cSrcweir return mxSeekable->getPosition(); 130*cdf0e10cSrcweir } 131*cdf0e10cSrcweir 132*cdf0e10cSrcweir sal_Int64 SAL_CALL OleOutputStream::getLength() throw( IOException, RuntimeException ) 133*cdf0e10cSrcweir { 134*cdf0e10cSrcweir ensureSeekable(); 135*cdf0e10cSrcweir return mxSeekable->getLength(); 136*cdf0e10cSrcweir } 137*cdf0e10cSrcweir 138*cdf0e10cSrcweir void SAL_CALL OleOutputStream::writeBytes( const Sequence< sal_Int8 >& rData ) throw( NotConnectedException, BufferSizeExceededException, IOException, RuntimeException ) 139*cdf0e10cSrcweir { 140*cdf0e10cSrcweir ensureConnected(); 141*cdf0e10cSrcweir mxOutStrm->writeBytes( rData ); 142*cdf0e10cSrcweir } 143*cdf0e10cSrcweir 144*cdf0e10cSrcweir void SAL_CALL OleOutputStream::flush() throw( NotConnectedException, BufferSizeExceededException, IOException, RuntimeException ) 145*cdf0e10cSrcweir { 146*cdf0e10cSrcweir ensureConnected(); 147*cdf0e10cSrcweir mxOutStrm->flush(); 148*cdf0e10cSrcweir } 149*cdf0e10cSrcweir 150*cdf0e10cSrcweir void SAL_CALL OleOutputStream::closeOutput() throw( NotConnectedException, BufferSizeExceededException, IOException, RuntimeException ) 151*cdf0e10cSrcweir { 152*cdf0e10cSrcweir ensureConnected(); 153*cdf0e10cSrcweir ensureSeekable(); 154*cdf0e10cSrcweir // remember the class members 155*cdf0e10cSrcweir Reference< XOutputStream > xOutStrm = mxOutStrm; 156*cdf0e10cSrcweir Reference< XSeekable > xSeekable = mxSeekable; 157*cdf0e10cSrcweir // reset all class members 158*cdf0e10cSrcweir mxOutStrm.clear(); 159*cdf0e10cSrcweir mxSeekable.clear(); 160*cdf0e10cSrcweir // close stream (and let it throw something if needed) 161*cdf0e10cSrcweir xOutStrm->closeOutput(); 162*cdf0e10cSrcweir // on success, insert the stream into the OLE storage (must be seeked back before) 163*cdf0e10cSrcweir xSeekable->seek( 0 ); 164*cdf0e10cSrcweir if( !ContainerHelper::insertByName( mxStorage, maElementName, Any( mxTempFile ) ) ) 165*cdf0e10cSrcweir throw IOException(); 166*cdf0e10cSrcweir } 167*cdf0e10cSrcweir 168*cdf0e10cSrcweir void OleOutputStream::ensureSeekable() const throw( IOException ) 169*cdf0e10cSrcweir { 170*cdf0e10cSrcweir if( !mxSeekable.is() ) 171*cdf0e10cSrcweir throw IOException(); 172*cdf0e10cSrcweir } 173*cdf0e10cSrcweir 174*cdf0e10cSrcweir void OleOutputStream::ensureConnected() const throw( NotConnectedException ) 175*cdf0e10cSrcweir { 176*cdf0e10cSrcweir if( !mxOutStrm.is() ) 177*cdf0e10cSrcweir throw NotConnectedException(); 178*cdf0e10cSrcweir } 179*cdf0e10cSrcweir 180*cdf0e10cSrcweir } // namespace 181*cdf0e10cSrcweir 182*cdf0e10cSrcweir // ============================================================================ 183*cdf0e10cSrcweir 184*cdf0e10cSrcweir OleStorage::OleStorage( const Reference< XComponentContext >& rxContext, 185*cdf0e10cSrcweir const Reference< XInputStream >& rxInStream, bool bBaseStreamAccess ) : 186*cdf0e10cSrcweir StorageBase( rxInStream, bBaseStreamAccess ), 187*cdf0e10cSrcweir mxContext( rxContext ), 188*cdf0e10cSrcweir mpParentStorage( 0 ) 189*cdf0e10cSrcweir { 190*cdf0e10cSrcweir OSL_ENSURE( mxContext.is(), "OleStorage::OleStorage - missing component context" ); 191*cdf0e10cSrcweir initStorage( rxInStream ); 192*cdf0e10cSrcweir } 193*cdf0e10cSrcweir 194*cdf0e10cSrcweir OleStorage::OleStorage( const Reference< XComponentContext >& rxContext, 195*cdf0e10cSrcweir const Reference< XStream >& rxOutStream, bool bBaseStreamAccess ) : 196*cdf0e10cSrcweir StorageBase( rxOutStream, bBaseStreamAccess ), 197*cdf0e10cSrcweir mxContext( rxContext ), 198*cdf0e10cSrcweir mpParentStorage( 0 ) 199*cdf0e10cSrcweir { 200*cdf0e10cSrcweir OSL_ENSURE( mxContext.is(), "OleStorage::OleStorage - missing component context" ); 201*cdf0e10cSrcweir initStorage( rxOutStream ); 202*cdf0e10cSrcweir } 203*cdf0e10cSrcweir 204*cdf0e10cSrcweir OleStorage::OleStorage( const OleStorage& rParentStorage, 205*cdf0e10cSrcweir const Reference< XNameContainer >& rxStorage, const OUString& rElementName, bool bReadOnly ) : 206*cdf0e10cSrcweir StorageBase( rParentStorage, rElementName, bReadOnly ), 207*cdf0e10cSrcweir mxContext( rParentStorage.mxContext ), 208*cdf0e10cSrcweir mxStorage( rxStorage ), 209*cdf0e10cSrcweir mpParentStorage( &rParentStorage ) 210*cdf0e10cSrcweir { 211*cdf0e10cSrcweir OSL_ENSURE( mxStorage.is(), "OleStorage::OleStorage - missing substorage elements" ); 212*cdf0e10cSrcweir } 213*cdf0e10cSrcweir 214*cdf0e10cSrcweir OleStorage::OleStorage( const OleStorage& rParentStorage, 215*cdf0e10cSrcweir const Reference< XStream >& rxOutStream, const OUString& rElementName ) : 216*cdf0e10cSrcweir StorageBase( rParentStorage, rElementName, false ), 217*cdf0e10cSrcweir mxContext( rParentStorage.mxContext ), 218*cdf0e10cSrcweir mpParentStorage( &rParentStorage ) 219*cdf0e10cSrcweir { 220*cdf0e10cSrcweir initStorage( rxOutStream ); 221*cdf0e10cSrcweir } 222*cdf0e10cSrcweir 223*cdf0e10cSrcweir OleStorage::~OleStorage() 224*cdf0e10cSrcweir { 225*cdf0e10cSrcweir } 226*cdf0e10cSrcweir 227*cdf0e10cSrcweir // ---------------------------------------------------------------------------- 228*cdf0e10cSrcweir 229*cdf0e10cSrcweir void OleStorage::initStorage( const Reference< XInputStream >& rxInStream ) 230*cdf0e10cSrcweir { 231*cdf0e10cSrcweir // if stream is not seekable, create temporary copy 232*cdf0e10cSrcweir Reference< XInputStream > xInStrm = rxInStream; 233*cdf0e10cSrcweir if( !Reference< XSeekable >( xInStrm, UNO_QUERY ).is() ) try 234*cdf0e10cSrcweir { 235*cdf0e10cSrcweir Reference< XMultiServiceFactory > xFactory( mxContext->getServiceManager(), UNO_QUERY_THROW ); 236*cdf0e10cSrcweir Reference< XStream > xTempFile( xFactory->createInstance( CREATE_OUSTRING( "com.sun.star.io.TempFile" ) ), UNO_QUERY_THROW ); 237*cdf0e10cSrcweir { 238*cdf0e10cSrcweir Reference< XOutputStream > xOutStrm( xTempFile->getOutputStream(), UNO_SET_THROW ); 239*cdf0e10cSrcweir /* Pass false to both binary stream objects to keep the UNO 240*cdf0e10cSrcweir streams alive. Life time of these streams is controlled by the 241*cdf0e10cSrcweir tempfile implementation. */ 242*cdf0e10cSrcweir BinaryXOutputStream aOutStrm( xOutStrm, false ); 243*cdf0e10cSrcweir BinaryXInputStream aInStrm( xInStrm, false ); 244*cdf0e10cSrcweir aInStrm.copyToStream( aOutStrm ); 245*cdf0e10cSrcweir } // scope closes output stream of tempfile 246*cdf0e10cSrcweir xInStrm = xTempFile->getInputStream(); 247*cdf0e10cSrcweir } 248*cdf0e10cSrcweir catch( Exception& ) 249*cdf0e10cSrcweir { 250*cdf0e10cSrcweir OSL_ENSURE( false, "OleStorage::initStorage - cannot create temporary copy of input stream" ); 251*cdf0e10cSrcweir } 252*cdf0e10cSrcweir 253*cdf0e10cSrcweir // create base storage object 254*cdf0e10cSrcweir if( xInStrm.is() ) try 255*cdf0e10cSrcweir { 256*cdf0e10cSrcweir Reference< XMultiServiceFactory > xFactory( mxContext->getServiceManager(), UNO_QUERY_THROW ); 257*cdf0e10cSrcweir Sequence< Any > aArgs( 2 ); 258*cdf0e10cSrcweir aArgs[ 0 ] <<= xInStrm; 259*cdf0e10cSrcweir aArgs[ 1 ] <<= true; // true = do not create a copy of the input stream 260*cdf0e10cSrcweir mxStorage.set( xFactory->createInstanceWithArguments( 261*cdf0e10cSrcweir CREATE_OUSTRING( "com.sun.star.embed.OLESimpleStorage" ), aArgs ), UNO_QUERY_THROW ); 262*cdf0e10cSrcweir } 263*cdf0e10cSrcweir catch( Exception& ) 264*cdf0e10cSrcweir { 265*cdf0e10cSrcweir } 266*cdf0e10cSrcweir } 267*cdf0e10cSrcweir 268*cdf0e10cSrcweir void OleStorage::initStorage( const Reference< XStream >& rxOutStream ) 269*cdf0e10cSrcweir { 270*cdf0e10cSrcweir // create base storage object 271*cdf0e10cSrcweir if( rxOutStream.is() ) try 272*cdf0e10cSrcweir { 273*cdf0e10cSrcweir Reference< XMultiServiceFactory > xFactory( mxContext->getServiceManager(), UNO_QUERY_THROW ); 274*cdf0e10cSrcweir Sequence< Any > aArgs( 2 ); 275*cdf0e10cSrcweir aArgs[ 0 ] <<= rxOutStream; 276*cdf0e10cSrcweir aArgs[ 1 ] <<= true; // true = do not create a copy of the stream 277*cdf0e10cSrcweir mxStorage.set( xFactory->createInstanceWithArguments( 278*cdf0e10cSrcweir CREATE_OUSTRING( "com.sun.star.embed.OLESimpleStorage" ), aArgs ), UNO_QUERY_THROW ); 279*cdf0e10cSrcweir } 280*cdf0e10cSrcweir catch( Exception& ) 281*cdf0e10cSrcweir { 282*cdf0e10cSrcweir } 283*cdf0e10cSrcweir } 284*cdf0e10cSrcweir 285*cdf0e10cSrcweir // StorageBase interface ------------------------------------------------------ 286*cdf0e10cSrcweir 287*cdf0e10cSrcweir bool OleStorage::implIsStorage() const 288*cdf0e10cSrcweir { 289*cdf0e10cSrcweir if( mxStorage.is() ) try 290*cdf0e10cSrcweir { 291*cdf0e10cSrcweir /* If this is not an OLE storage, hasElements() of the OLESimpleStorage 292*cdf0e10cSrcweir implementation throws an exception. But we do not return the result 293*cdf0e10cSrcweir of hasElements(), because an empty storage is a valid storage too. */ 294*cdf0e10cSrcweir mxStorage->hasElements(); 295*cdf0e10cSrcweir return true; 296*cdf0e10cSrcweir } 297*cdf0e10cSrcweir catch( Exception& ) 298*cdf0e10cSrcweir { 299*cdf0e10cSrcweir } 300*cdf0e10cSrcweir return false; 301*cdf0e10cSrcweir } 302*cdf0e10cSrcweir 303*cdf0e10cSrcweir Reference< XStorage > OleStorage::implGetXStorage() const 304*cdf0e10cSrcweir { 305*cdf0e10cSrcweir OSL_ENSURE( false, "OleStorage::getXStorage - not implemented" ); 306*cdf0e10cSrcweir return Reference< XStorage >(); 307*cdf0e10cSrcweir } 308*cdf0e10cSrcweir 309*cdf0e10cSrcweir void OleStorage::implGetElementNames( ::std::vector< OUString >& orElementNames ) const 310*cdf0e10cSrcweir { 311*cdf0e10cSrcweir Sequence< OUString > aNames; 312*cdf0e10cSrcweir if( mxStorage.is() ) try 313*cdf0e10cSrcweir { 314*cdf0e10cSrcweir aNames = mxStorage->getElementNames(); 315*cdf0e10cSrcweir if( aNames.getLength() > 0 ) 316*cdf0e10cSrcweir orElementNames.insert( orElementNames.end(), aNames.getConstArray(), aNames.getConstArray() + aNames.getLength() ); 317*cdf0e10cSrcweir } 318*cdf0e10cSrcweir catch( Exception& ) 319*cdf0e10cSrcweir { 320*cdf0e10cSrcweir } 321*cdf0e10cSrcweir } 322*cdf0e10cSrcweir 323*cdf0e10cSrcweir StorageRef OleStorage::implOpenSubStorage( const OUString& rElementName, bool bCreateMissing ) 324*cdf0e10cSrcweir { 325*cdf0e10cSrcweir StorageRef xSubStorage; 326*cdf0e10cSrcweir if( mxStorage.is() && (rElementName.getLength() > 0) ) 327*cdf0e10cSrcweir { 328*cdf0e10cSrcweir try 329*cdf0e10cSrcweir { 330*cdf0e10cSrcweir Reference< XNameContainer > xSubElements( mxStorage->getByName( rElementName ), UNO_QUERY_THROW ); 331*cdf0e10cSrcweir xSubStorage.reset( new OleStorage( *this, xSubElements, rElementName, true ) ); 332*cdf0e10cSrcweir } 333*cdf0e10cSrcweir catch( Exception& ) 334*cdf0e10cSrcweir { 335*cdf0e10cSrcweir } 336*cdf0e10cSrcweir 337*cdf0e10cSrcweir /* The OLESimpleStorage API implementation seems to be buggy in the 338*cdf0e10cSrcweir area of writable inplace substorage (sometimes it overwrites other 339*cdf0e10cSrcweir unrelated streams with zero bytes). We go the save way and create a 340*cdf0e10cSrcweir new OLE storage based on a temporary file. All operations are 341*cdf0e10cSrcweir performed on this clean storage. On committing, the storage will be 342*cdf0e10cSrcweir completely re-inserted into the parent storage. */ 343*cdf0e10cSrcweir if( !isReadOnly() && (bCreateMissing || xSubStorage.get()) ) try 344*cdf0e10cSrcweir { 345*cdf0e10cSrcweir // create new storage based on a temp file 346*cdf0e10cSrcweir Reference< XMultiServiceFactory > xFactory( mxContext->getServiceManager(), UNO_QUERY_THROW ); 347*cdf0e10cSrcweir Reference< XStream > xTempFile( xFactory->createInstance( CREATE_OUSTRING( "com.sun.star.io.TempFile" ) ), UNO_QUERY_THROW ); 348*cdf0e10cSrcweir StorageRef xTempStorage( new OleStorage( *this, xTempFile, rElementName ) ); 349*cdf0e10cSrcweir // copy existing substorage into temp storage 350*cdf0e10cSrcweir if( xSubStorage.get() ) 351*cdf0e10cSrcweir xSubStorage->copyStorageToStorage( *xTempStorage ); 352*cdf0e10cSrcweir // return the temp storage to caller 353*cdf0e10cSrcweir xSubStorage = xTempStorage; 354*cdf0e10cSrcweir } 355*cdf0e10cSrcweir catch( Exception& ) 356*cdf0e10cSrcweir { 357*cdf0e10cSrcweir } 358*cdf0e10cSrcweir } 359*cdf0e10cSrcweir return xSubStorage; 360*cdf0e10cSrcweir } 361*cdf0e10cSrcweir 362*cdf0e10cSrcweir Reference< XInputStream > OleStorage::implOpenInputStream( const OUString& rElementName ) 363*cdf0e10cSrcweir { 364*cdf0e10cSrcweir Reference< XInputStream > xInStream; 365*cdf0e10cSrcweir if( mxStorage.is() ) try 366*cdf0e10cSrcweir { 367*cdf0e10cSrcweir xInStream.set( mxStorage->getByName( rElementName ), UNO_QUERY ); 368*cdf0e10cSrcweir } 369*cdf0e10cSrcweir catch( Exception& ) 370*cdf0e10cSrcweir { 371*cdf0e10cSrcweir } 372*cdf0e10cSrcweir return xInStream; 373*cdf0e10cSrcweir } 374*cdf0e10cSrcweir 375*cdf0e10cSrcweir Reference< XOutputStream > OleStorage::implOpenOutputStream( const OUString& rElementName ) 376*cdf0e10cSrcweir { 377*cdf0e10cSrcweir Reference< XOutputStream > xOutStream; 378*cdf0e10cSrcweir if( mxStorage.is() && (rElementName.getLength() > 0) ) 379*cdf0e10cSrcweir xOutStream.set( new OleOutputStream( mxContext, mxStorage, rElementName ) ); 380*cdf0e10cSrcweir return xOutStream; 381*cdf0e10cSrcweir } 382*cdf0e10cSrcweir 383*cdf0e10cSrcweir void OleStorage::implCommit() const 384*cdf0e10cSrcweir { 385*cdf0e10cSrcweir try 386*cdf0e10cSrcweir { 387*cdf0e10cSrcweir // commit this storage (finalizes the file this storage is based on) 388*cdf0e10cSrcweir Reference< XTransactedObject >( mxStorage, UNO_QUERY_THROW )->commit(); 389*cdf0e10cSrcweir // re-insert this storage into the parent storage 390*cdf0e10cSrcweir if( mpParentStorage ) 391*cdf0e10cSrcweir { 392*cdf0e10cSrcweir if( mpParentStorage->mxStorage->hasByName( getName() ) ) 393*cdf0e10cSrcweir { 394*cdf0e10cSrcweir // replaceByName() does not work (#i109539#) 395*cdf0e10cSrcweir mpParentStorage->mxStorage->removeByName( getName() ); 396*cdf0e10cSrcweir Reference< XTransactedObject >( mpParentStorage->mxStorage, UNO_QUERY_THROW )->commit(); 397*cdf0e10cSrcweir } 398*cdf0e10cSrcweir mpParentStorage->mxStorage->insertByName( getName(), Any( mxStorage ) ); 399*cdf0e10cSrcweir // this requires another commit(), which will be performed by the parent storage 400*cdf0e10cSrcweir } 401*cdf0e10cSrcweir } 402*cdf0e10cSrcweir catch( Exception& ) 403*cdf0e10cSrcweir { 404*cdf0e10cSrcweir } 405*cdf0e10cSrcweir } 406*cdf0e10cSrcweir 407*cdf0e10cSrcweir // ============================================================================ 408*cdf0e10cSrcweir 409*cdf0e10cSrcweir } // namespace ole 410*cdf0e10cSrcweir } // namespace oox 411