Files
libreoffice/unotools/source/ucbhelper/ucblockbytes.cxx
2001-07-16 13:46:26 +00:00

936 lines
30 KiB
C++

/*************************************************************************
*
* $RCSfile: ucblockbytes.cxx,v $
*
* $Revision: 1.31 $
*
* last change: $Author: mba $ $Date: 2001-07-16 14:46:26 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#include <unotools/ucblockbytes.hxx>
#include <comphelper/processfactory.hxx>
#ifndef _COM_SUN_STAR_UCB_COMMANDFAILEDEXCEPTION_HPP_
#include <com/sun/star/ucb/CommandFailedException.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_UNSUPPORTEDDATASINKEXCEPTION_HPP_
#include <com/sun/star/ucb/UnsupportedDataSinkException.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_INTERACTIVEIODEXCEPTION_HPP_
#include <com/sun/star/ucb/InteractiveIOException.hpp>
#endif
#ifndef _COM_SUN_STAR_IO_XACTIVEDATASTREAMER_HPP_
#include <com/sun/star/io/XActiveDataStreamer.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_DOCUMENTHEADERFIELD_HPP_
#include <com/sun/star/ucb/DocumentHeaderField.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_XCOMMANDINFO_HPP_
#include <com/sun/star/ucb/XCommandInfo.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_XCOMMANDPROCESSOR_HPP_
#include <com/sun/star/ucb/XCommandProcessor.hpp>
#endif
#ifndef _COM_SUN_STAR_TASK_XINTERACTIONHANDLER_HPP_
#include <com/sun/star/task/XInteractionHandler.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_OPENCOMMANDARGUMENT2_HPP_
#include <com/sun/star/ucb/OpenCommandArgument2.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_POSTCOMMANDARGUMENT_HPP_
#include <com/sun/star/ucb/PostCommandArgument.hpp>
#endif
#ifndef _COM_SUN_STAR_UCB_OPENMODE_HPP_
#include <com/sun/star/ucb/OpenMode.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_PROPERTY_HPP_
#include <com/sun/star/beans/Property.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_PROPERTYVALUE_HPP_
#include <com/sun/star/beans/PropertyValue.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_XPROPERTIESCHANGENOTIFIER_HPP_
#include <com/sun/star/beans/XPropertiesChangeNotifier.hpp>
#endif
#ifndef _COM_SUN_STAR_BEANS_XPROPERTIESCHANGELISTENER_HPP_
#include <com/sun/star/beans/XPropertiesChangeListener.hpp>
#endif
#ifndef _COM_SUN_STAR_SDBC_XROW_HPP_
#include <com/sun/star/sdbc/XRow.hpp>
#endif
#ifndef _COM_SUN_STAR_IO_XACTIVEDATASINK_HPP_
#include <com/sun/star/io/XActiveDataSink.hpp>
#endif
#ifndef _COM_SUN_STAR_IO_XACTIVEDATACONTROL_HPP_
#include <com/sun/star/io/XActiveDataControl.hpp>
#endif
#ifndef _CPPUHELPER_IMPLBASE1_HXX_
#include <cppuhelper/implbase1.hxx>
#endif
#ifndef _CPPUHELPER_IMPLBASE2_HXX_
#include <cppuhelper/implbase2.hxx>
#endif
#ifndef _TOOLS_INETMSG_HXX
#include <tools/inetmsg.hxx>
#endif
#ifndef _COM_SUN_STAR_IO_XTRUNCATE_HPP_
#include <com/sun/star/io/XTruncate.hpp>
#endif
#include <ucbhelper/contentbroker.hxx>
#include <ucbhelper/content.hxx>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::ucb;
using namespace ::com::sun::star::task;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::beans;
namespace utl
{
/**
Helper class for getting a XInputStream when opening a content
*/
class UcbDataSink_Impl : public ::cppu::WeakImplHelper2< XActiveDataControl, XActiveDataSink >
{
UcbLockBytesRef m_xLockBytes;
public:
UcbDataSink_Impl( UcbLockBytes* pLockBytes )
: m_xLockBytes( pLockBytes )
{}
SvLockBytes* getLockBytes (void)
{ return m_xLockBytes; }
// XActiveDataControl.
virtual void SAL_CALL addListener ( const Reference<XStreamListener> &rxListener) throw(RuntimeException) {}
virtual void SAL_CALL removeListener ( const Reference<XStreamListener> &rxListener) throw(RuntimeException) {}
virtual void SAL_CALL start (void) throw(RuntimeException) {}
virtual void SAL_CALL terminate (void) throw(RuntimeException)
{ m_xLockBytes->terminate_Impl(); }
// XActiveDataSink.
virtual void SAL_CALL setInputStream ( const Reference<XInputStream> &rxInputStream) throw(RuntimeException)
{ m_xLockBytes->setInputStream_Impl (rxInputStream); }
virtual Reference<XInputStream> SAL_CALL getInputStream (void) throw(RuntimeException)
{ return m_xLockBytes->getInputStream_Impl(); }
};
/**
Helper class for getting a XStream when opening a content
*/
class UcbStreamer_Impl : public ::cppu::WeakImplHelper2< XActiveDataStreamer, XActiveDataControl >
{
Reference < XStream > m_xStream;
UcbLockBytesRef m_xLockBytes;
public:
UcbStreamer_Impl( UcbLockBytes* pLockBytes )
: m_xLockBytes( pLockBytes )
{}
// XActiveDataControl.
virtual void SAL_CALL addListener ( const Reference<XStreamListener> &rxListener) throw(RuntimeException) {}
virtual void SAL_CALL removeListener ( const Reference<XStreamListener> &rxListener) throw(RuntimeException) {}
virtual void SAL_CALL start (void) throw(RuntimeException) {}
virtual void SAL_CALL terminate (void) throw(RuntimeException)
{ m_xLockBytes->terminate_Impl(); }
// XActiveDataStreamer
virtual void SAL_CALL setStream( const Reference< XStream >& aStream ) throw(RuntimeException)
{ m_xStream = aStream; m_xLockBytes->setStream_Impl( aStream ); }
virtual Reference< XStream > SAL_CALL getStream() throw(RuntimeException)
{ return m_xStream; }
};
/**
Helper class for progress handling while executing UCB commands
*/
class ProgressHandler_Impl: public ::cppu::WeakImplHelper1< XProgressHandler >
{
Link m_aProgress;
public:
ProgressHandler_Impl( const Link& rLink )
: m_aProgress( rLink )
{}
// XProgressHandler
virtual void SAL_CALL push(const Any & rStatus) throw (RuntimeException) {}
virtual void SAL_CALL pop() throw (RuntimeException) {}
virtual void SAL_CALL update(const Any & rStatus) throw (RuntimeException)
{ if ( m_aProgress.IsSet() ) m_aProgress.Call( 0 ); }
};
/**
Helper class for managing interactions and progress when executing UCB commands
*/
class UcbTaskEnvironment : public ::cppu::WeakImplHelper1< XCommandEnvironment >
{
Reference< XInteractionHandler > m_xInteractionHandler;
Reference< XProgressHandler > m_xProgressHandler;
public:
UcbTaskEnvironment( const Reference< XInteractionHandler>& rxInteractionHandler,
const Reference< XProgressHandler>& rxProgressHandler )
: m_xInteractionHandler( rxInteractionHandler )
, m_xProgressHandler( rxProgressHandler )
{}
virtual Reference<XInteractionHandler> SAL_CALL getInteractionHandler() throw (RuntimeException)
{ return m_xInteractionHandler; }
virtual Reference<XProgressHandler> SAL_CALL getProgressHandler() throw (RuntimeException)
{ return m_xProgressHandler; }
};
/**
Helper class for property change notifies when executing UCB commands
*/
class UcbPropertiesChangeListener_Impl : public ::cppu::WeakImplHelper1< XPropertiesChangeListener >
{
public:
UcbLockBytesRef m_xLockBytes;
UcbPropertiesChangeListener_Impl( UcbLockBytesRef rRef )
: m_xLockBytes( rRef )
{}
virtual void SAL_CALL disposing ( const EventObject &rEvent) throw(RuntimeException) {}
virtual void SAL_CALL propertiesChange ( const Sequence<PropertyChangeEvent> &rEvent) throw(RuntimeException);
};
void SAL_CALL UcbPropertiesChangeListener_Impl::propertiesChange ( const Sequence<PropertyChangeEvent> &rEvent) throw(RuntimeException)
{
sal_Int32 i, n = rEvent.getLength();
for (i = 0; i < n; i++)
{
PropertyChangeEvent evt (rEvent[i]);
if (evt.PropertyName == ::rtl::OUString::createFromAscii ("DocumentHeader"))
{
Sequence<DocumentHeaderField> aHead;
if (evt.NewValue >>= aHead)
{
sal_Int32 k, m = aHead.getLength();
for (k = 0; k < m; k++)
{
String aName( aHead[k].Name );
String aValue( aHead[k].Value );
if (aName.CompareIgnoreCaseToAscii("Expires") == COMPARE_EQUAL)
{
DateTime aExpires (0, 0);
if (INetRFC822Message::ParseDateField (aValue, aExpires))
{
aExpires.ConvertToLocalTime();
m_xLockBytes->SetExpireDate_Impl( aExpires );
}
}
}
}
m_xLockBytes->SetStreamValid_Impl();
}
else if (evt.PropertyName == rtl::OUString::createFromAscii ("PresentationURL"))
{
::rtl::OUString aUrl;
if (evt.NewValue >>= aUrl)
{
::rtl::OUString aBad (::rtl::OUString::createFromAscii ("private:"));
if (!(aUrl.compareTo (aBad, aBad.getLength()) == 0))
{
// URL changed (Redirection).
m_xLockBytes->SetRealURL_Impl( aUrl );
}
}
}
else if (evt.PropertyName == ::rtl::OUString::createFromAscii ("MediaType"))
{
::rtl::OUString aContentType;
if (evt.NewValue >>= aContentType)
m_xLockBytes->SetContentType_Impl( aContentType );
}
}
}
/**
Helper class for opening UCB contents synchronously or asynchronously
*/
class CommandThread_Impl : public ::vos::OThread
{
public:
Reference < XContent > m_xContent;
Reference < XInteractionHandler > m_xInteract;
Reference < XProgressHandler > m_xProgress;
Reference < XPropertiesChangeListener > m_xListener;
Reference < XInterface > m_xSink;
::ucb::Content* m_pContent;
Command m_aArgument;
UcbLockBytesRef m_xLockBytes;
UcbLockBytesHandlerRef m_xHandler;
sal_Bool m_bCanceled : 1;
sal_Bool m_bRunning : 1;
CommandThread_Impl( UcbLockBytesRef xLockBytes,
Reference < XContent > xContent,
const Command& rArg,
Reference < XInterface > xSink,
Reference < XInteractionHandler > xInteract,
Reference < XProgressHandler > xProgress,
UcbLockBytesHandlerRef xRef );
~CommandThread_Impl();
virtual void SAL_CALL onTerminated();
virtual void SAL_CALL run();
void Cancel();
sal_Bool DoIt();
};
//----------------------------------------------------------------------------
CommandThread_Impl::CommandThread_Impl( UcbLockBytesRef xLockBytes,
Reference < XContent > xContent,
const Command& rArg,
Reference < XInterface > xSink,
Reference < XInteractionHandler > xInteract,
Reference < XProgressHandler > xProgress,
UcbLockBytesHandlerRef xRef )
: m_xInteract( xInteract )
, m_xContent( xContent )
, m_xProgress( xProgress )
, m_xLockBytes( xLockBytes )
, m_xHandler( xRef )
, m_xSink( xSink )
, m_aArgument( rArg )
, m_bCanceled( sal_False )
, m_bRunning( sal_False )
{
m_xLockBytes->setCommandThread_Impl( this );
m_pContent = new ::ucb::Content( xContent, new UcbTaskEnvironment( m_xInteract, m_xProgress ) );
Reference < XContentIdentifier > xIdent = xContent->getIdentifier();
::rtl::OUString aScheme = xIdent->getContentProviderScheme();
// http protocol must be handled in a special way: during the opening process the input stream may change
// only the last inputstream after notifying the document headers is valid
if ( aScheme.compareToAscii("http") != COMPARE_EQUAL )
m_xLockBytes->SetStreamValid_Impl();
m_xListener = new UcbPropertiesChangeListener_Impl( m_xLockBytes );
Reference< XPropertiesChangeNotifier > xProps ( xContent, UNO_QUERY );
if ( xProps.is() )
xProps->addPropertiesChangeListener( Sequence< ::rtl::OUString >(), m_xListener );
}
CommandThread_Impl::~CommandThread_Impl()
{
m_xLockBytes->setCommandThread_Impl(0);
Reference< XPropertiesChangeNotifier > xProps ( m_pContent->get(), UNO_QUERY );
if ( xProps.is() )
xProps->removePropertiesChangeListener( Sequence< ::rtl::OUString >(), m_xListener );
delete m_pContent;
}
void CommandThread_Impl::run()
{
m_bRunning = sal_True;
if( !m_bCanceled && schedule() )
DoIt();
m_bRunning = sal_False;
}
sal_Bool CommandThread_Impl::DoIt()
{
// create content and execute command
Any aResult;
bool bException = false;
bool bAborted = false;
try
{
// "synchronize" ????
aResult = m_pContent->executeCommand( m_aArgument.Name, m_aArgument.Argument );
}
catch ( CommandAbortedException )
{
bAborted = true;
m_xLockBytes->SetError( ERRCODE_ABORT );
}
catch ( CommandFailedException )
{
bAborted = true;
m_xLockBytes->SetError( ERRCODE_ABORT );
}
catch ( InteractiveIOException& r )
{
bException = true;
if ( r.Code == IOErrorCode_ACCESS_DENIED )
m_xLockBytes->SetError( ERRCODE_IO_ACCESSDENIED );
else if ( r.Code == IOErrorCode_NOT_EXISTING )
m_xLockBytes->SetError( ERRCODE_IO_NOTEXISTS );
else if ( r.Code == IOErrorCode_CANT_READ )
m_xLockBytes->SetError( ERRCODE_IO_CANTREAD );
else
m_xLockBytes->SetError( ERRCODE_IO_GENERAL );
}
catch ( UnsupportedDataSinkException& r )
{
bException = true;
m_xLockBytes->SetError( ERRCODE_IO_ACCESSDENIED );
}
catch ( Exception )
{
bException = true;
m_xLockBytes->SetError( ERRCODE_IO_GENERAL );
}
if ( bAborted || bException )
{
if( m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::CANCEL, m_xLockBytes );
Reference < XActiveDataSink > xSink( m_xSink, UNO_QUERY );
if ( xSink.is() )
xSink->setInputStream( Reference < XInputStream >() );
Reference < XActiveDataStreamer > xStreamer( m_xSink, UNO_QUERY );
if ( xStreamer.is() )
xStreamer->setStream( Reference < XStream >() );
}
Reference < XActiveDataControl > xControl( m_xSink, UNO_QUERY );
if ( xControl.is() )
xControl->terminate();
return ( bAborted || bException );
}
//----------------------------------------------------------------------------
void CommandThread_Impl::onTerminated()
{
delete this;
}
//----------------------------------------------------------------------------
void CommandThread_Impl::Cancel()
{
if ( m_bCanceled )
return;
m_bCanceled = sal_True;
if ( m_bRunning && m_pContent )
{
m_pContent->abortCommand();
m_bRunning = sal_False;
}
}
//----------------------------------------------------------------------------
UcbLockBytes::UcbLockBytes( UcbLockBytesHandler* pHandler )
: m_xInputStream (NULL)
, m_pCommandThread( NULL )
, m_bTerminated (sal_False)
, m_bStreamValid (sal_False)
, m_bDontClose( sal_False )
, m_xHandler( pHandler )
, m_nError( ERRCODE_NONE )
{
}
//----------------------------------------------------------------------------
UcbLockBytes::~UcbLockBytes()
{
if ( !m_bDontClose )
{
if ( m_xInputStream.is() )
{
try
{
m_xInputStream->closeInput();
}
catch ( RuntimeException const & )
{}
catch ( IOException const & )
{}
}
}
if ( !m_xInputStream.is() && m_xOutputStream.is() )
{
try
{
m_xOutputStream->closeOutput();
}
catch ( RuntimeException const & )
{}
catch ( IOException const & )
{}
}
}
Reference < XInputStream > UcbLockBytes::getInputStream()
{
vos::OClearableGuard aGuard( m_aMutex );
m_bDontClose = sal_True;
return m_xInputStream;
}
//----------------------------------------------------------------------------
sal_Bool UcbLockBytes::setStream_Impl( const Reference<XStream>& aStream )
{
vos::OClearableGuard aGuard( m_aMutex );
if ( aStream.is() )
{
m_xOutputStream = aStream->getOutputStream();
setInputStream_Impl( aStream->getInputStream() );
m_xSeekable = Reference < XSeekable > ( aStream, UNO_QUERY );
}
else
{
m_xOutputStream = Reference < XOutputStream >();
setInputStream_Impl( Reference < XInputStream >() );
}
return m_xInputStream.is();
}
sal_Bool UcbLockBytes::setInputStream_Impl( const Reference<XInputStream> &rxInputStream )
{
BOOL bRet;
vos::OClearableGuard aGuard( m_aMutex );
if ( !m_bDontClose && m_xInputStream.is() )
m_xInputStream->closeInput();
m_xInputStream = rxInputStream;
m_xSeekable = Reference < XSeekable > ( rxInputStream, UNO_QUERY );
bRet = m_xInputStream.is();
aGuard.clear();
if ( m_bStreamValid && m_xInputStream.is() )
m_aInitialized.set();
return bRet;
}
void UcbLockBytes::SetStreamValid_Impl()
{
m_bStreamValid = sal_True;
if ( m_xInputStream.is() )
m_aInitialized.set();
}
//----------------------------------------------------------------------------
void UcbLockBytes::terminate_Impl()
{
m_pCommandThread = NULL;
m_bTerminated = sal_True;
m_aInitialized.set();
m_aTerminated.set();
if ( GetError() == ERRCODE_NONE && !m_xInputStream.is() )
{
DBG_ERROR("No InputStream, but no error set!" );
SetError( ERRCODE_IO_NOTEXISTS );
}
if ( m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::DONE, this );
}
//----------------------------------------------------------------------------
void UcbLockBytes::SetSynchronMode (BOOL bSynchron)
{
SvLockBytes::SetSynchronMode (bSynchron);
}
//----------------------------------------------------------------------------
ErrCode UcbLockBytes::ReadAt ( ULONG nPos, void *pBuffer, ULONG nCount, ULONG *pRead) const
{
if ( IsSynchronMode() )
{
UcbLockBytes* pThis = const_cast < UcbLockBytes* >( this );
if ( m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::BEFOREWAIT, pThis );
pThis->m_aInitialized.wait();
if ( m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::AFTERWAIT, pThis );
}
Reference <XInputStream> xStream = getInputStream_Impl();
if ( !xStream.is() )
{
if ( m_bTerminated )
return ERRCODE_IO_CANTREAD;
else
return ERRCODE_IO_PENDING;
}
if ( pRead )
*pRead = 0;
Reference <XSeekable> xSeekable = getSeekable_Impl();
if ( !xSeekable.is() )
return ERRCODE_IO_CANTREAD;
try
{
xSeekable->seek( nPos );
}
catch ( IOException )
{
return ERRCODE_IO_CANTSEEK;
}
Sequence<sal_Int8> aData;
sal_Int32 nSize;
nCount = VOS_MIN(nCount, 0x7FFFFFFF);
try
{
if ( !m_bTerminated && !IsSynchronMode() )
{
sal_Int64 nLen = xSeekable->getLength();
if ( nPos + nCount > nLen )
return ERRCODE_IO_PENDING;
}
nSize = xStream->readBytes( aData, sal_Int32(nCount) );
}
catch (IOException)
{
return ERRCODE_IO_CANTREAD;
}
rtl_copyMemory (pBuffer, aData.getConstArray(), nSize);
if (pRead)
*pRead = ULONG(nSize);
return ERRCODE_NONE;
}
//----------------------------------------------------------------------------
ErrCode UcbLockBytes::WriteAt ( ULONG nPos, const void *pBuffer, ULONG nCount, ULONG *pWritten)
{
if ( pWritten )
*pWritten = 0;
DBG_ASSERT( IsSynchronMode(), "Writing is only possible in SynchronMode!" );
DBG_ASSERT( m_aInitialized.check(), "Writing bevor stream is ready!" );
Reference <XSeekable> xSeekable = getSeekable_Impl();
Reference <XOutputStream> xOutputStream = getOutputStream_Impl();
if ( !xOutputStream.is() || !xSeekable.is() )
return ERRCODE_IO_CANTWRITE;
try
{
xSeekable->seek( nPos );
}
catch ( IOException )
{
return ERRCODE_IO_CANTSEEK;
}
sal_Int8* pData = (sal_Int8*) pBuffer;
Sequence<sal_Int8> aData( pData, nCount );
try
{
xOutputStream->writeBytes( aData );
if ( pWritten )
*pWritten = nCount;
}
catch ( Exception )
{
return ERRCODE_IO_CANTWRITE;
}
return ERRCODE_NONE;
}
//----------------------------------------------------------------------------
ErrCode UcbLockBytes::Flush() const
{
Reference <XOutputStream > xOutputStream = getOutputStream_Impl();
if ( !xOutputStream.is() )
return ERRCODE_IO_CANTWRITE;
xOutputStream->flush();
return ERRCODE_NONE;
}
//----------------------------------------------------------------------------
ErrCode UcbLockBytes::SetSize (ULONG nNewSize)
{
SvLockBytesStat aStat;
Stat( &aStat, (SvLockBytesStatFlag) 0 );
ULONG nSize = aStat.nSize;
if ( nSize > nNewSize )
{
Reference < XTruncate > xTrunc( getOutputStream_Impl(), UNO_QUERY );
if ( xTrunc.is() )
{
xTrunc->truncate();
nSize = 0;
}
else
DBG_WARNING("Not truncatable!");
}
if ( nSize < nNewSize )
{
ULONG nDiff = nNewSize-nSize, nCount=0;
BYTE* pBuffer = new BYTE[ nDiff ];
WriteAt( nSize, pBuffer, nDiff, &nCount );
delete pBuffer;
if ( nCount != nDiff )
return ERRCODE_IO_CANTWRITE;
}
return ERRCODE_NONE;
}
//----------------------------------------------------------------------------
ErrCode UcbLockBytes::Stat( SvLockBytesStat *pStat, SvLockBytesStatFlag) const
{
if ( IsSynchronMode() )
{
UcbLockBytes* pThis = const_cast < UcbLockBytes* >( this );
if ( m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::BEFOREWAIT, pThis );
pThis->m_aInitialized.wait();
if ( m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::AFTERWAIT, pThis );
}
if (!pStat)
return ERRCODE_IO_INVALIDPARAMETER;
Reference <XInputStream> xStream = getInputStream_Impl();
Reference <XSeekable> xSeekable = getSeekable_Impl();
if ( !xStream.is() )
{
if ( m_bTerminated )
return ERRCODE_IO_INVALIDACCESS;
else
return ERRCODE_IO_PENDING;
}
else if( !xSeekable.is() )
return ERRCODE_IO_CANTTELL;
try
{
pStat->nSize = ULONG(xSeekable->getLength());
}
catch (IOException)
{
return ERRCODE_IO_CANTTELL;
}
return ERRCODE_NONE;
}
//----------------------------------------------------------------------------
void UcbLockBytes::Cancel()
{
if ( m_bTerminated )
return;
if ( m_pCommandThread )
{
m_pCommandThread->Cancel();
m_pCommandThread = NULL;
}
}
//----------------------------------------------------------------------------
IMPL_LINK( UcbLockBytes, DataAvailHdl, void*, EMPTYARG )
{
if ( hasInputStream_Impl() && m_xHandler.Is() )
m_xHandler->Handle( UcbLockBytesHandler::DATA_AVAILABLE, this );
return 0;
}
UcbLockBytesRef UcbLockBytes::CreateInputLockBytes( const Reference< XInputStream > xInputStream )
{
if( !xInputStream.is() )
return NULL;;
UcbLockBytesRef xLockBytes = new UcbLockBytes();
xLockBytes->setDontClose_Impl();
xLockBytes->setInputStream_Impl( xInputStream );
xLockBytes->terminate_Impl();
return xLockBytes;
}
UcbLockBytesRef UcbLockBytes::CreateLockBytes( const Reference < XContent > xContent, const Sequence < PropertyValue >& rProps,
Reference < XInputStream > xPostData, Reference < XInteractionHandler > xInteractionHandler, UcbLockBytesHandler* pHandler )
{
if( !xContent.is() )
return NULL;;
UcbLockBytesRef xLockBytes = new UcbLockBytes( pHandler );
xLockBytes->SetSynchronMode( !pHandler );
Reference< XActiveDataControl > xSink = (XActiveDataControl*) new UcbDataSink_Impl( xLockBytes );
if ( rProps.getLength() )
{
Reference < XCommandProcessor > xProcessor( xContent, UNO_QUERY );
Command aCommand;
aCommand.Name = ::rtl::OUString::createFromAscii("setPropertyValues");
aCommand.Handle = -1; /* unknown */
aCommand.Argument <<= rProps;
xProcessor->execute( aCommand, 0, Reference < XCommandEnvironment >() );
}
PostCommandArgument aArgument;
aArgument.Source = xPostData;
aArgument.Sink = xSink;
Command aCommand;
aCommand.Name = ::rtl::OUString::createFromAscii ("post");
aCommand.Argument <<= aArgument;
Reference< XProgressHandler > xProgressHdl = new ProgressHandler_Impl( LINK( &xLockBytes, UcbLockBytes, DataAvailHdl ) );
CommandThread_Impl* pThread = new CommandThread_Impl( xLockBytes, xContent, aCommand, xSink, xInteractionHandler, xProgressHdl, pHandler );
if ( !pHandler )
{
sal_Bool bError = pThread->DoIt();
if ( xLockBytes->GetError() == ERRCODE_NONE && ( bError || !xLockBytes->getInputStream().is() ) )
{
DBG_ERROR("No InputStream, but no error set!" );
xLockBytes->SetError( ERRCODE_IO_GENERAL );
}
delete pThread;
}
else
{
pThread->create();
}
return xLockBytes;
}
UcbLockBytesRef UcbLockBytes::CreateLockBytes( const Reference < XContent > xContent, const Sequence < PropertyValue >& rProps,
StreamMode eOpenMode, Reference < XInteractionHandler > xInteractionHandler, UcbLockBytesHandler* pHandler )
{
if( !xContent.is() )
return NULL;;
UcbLockBytesRef xLockBytes = new UcbLockBytes( pHandler );
xLockBytes->SetSynchronMode( !pHandler );
Reference< XActiveDataControl > xSink;
if ( eOpenMode & STREAM_WRITE )
xSink = (XActiveDataControl*) new UcbStreamer_Impl( xLockBytes );
else
xSink = (XActiveDataControl*) new UcbDataSink_Impl( xLockBytes );
if ( rProps.getLength() )
{
Reference < XCommandProcessor > xProcessor( xContent, UNO_QUERY );
Command aCommand;
aCommand.Name = ::rtl::OUString::createFromAscii("setPropertyValues");
aCommand.Handle = -1; /* unknown */
aCommand.Argument <<= rProps;
xProcessor->execute( aCommand, 0, Reference < XCommandEnvironment >() );
}
OpenCommandArgument2 aArgument;
aArgument.Sink = xSink;
aArgument.Mode = OpenMode::DOCUMENT;
Command aCommand;
aCommand.Name = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("open") );
aCommand.Argument <<= aArgument;
Reference< XProgressHandler > xProgressHdl = new ProgressHandler_Impl( LINK( &xLockBytes, UcbLockBytes, DataAvailHdl ) );
CommandThread_Impl* pThread = new CommandThread_Impl( xLockBytes, xContent, aCommand, xSink, xInteractionHandler, xProgressHdl, pHandler );
if ( ( eOpenMode & STREAM_WRITE ) || !pHandler )
{
// first try read/write mode
sal_Bool bError = pThread->DoIt();
if ( xLockBytes->GetError() == ERRCODE_NONE && ( bError || !xLockBytes->getInputStream().is() ) )
{
DBG_ERROR("No InputStream, but no error set!" );
xLockBytes->SetError( ERRCODE_IO_GENERAL );
}
delete pThread;
}
else
{
pThread->create();
}
return xLockBytes;
}
};