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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: wrapstreamforshare.cxx,v $
*
* $Revision: 1.5 $
*
* last change: $Author: hr $ $Date: 2006-06-20 06:15:02 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 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
*
************************************************************************/
#ifndef _OSL_DIAGNOSE_H_
#include <osl/diagnose.h>
#endif
#include "wrapstreamforshare.hxx"
using namespace ::com::sun::star;
WrapStreamForShare::WrapStreamForShare( const uno::Reference< io::XInputStream >& xInStream,
const SotMutexHolderRef& rMutexRef )
: m_rMutexRef( rMutexRef )
, m_xInStream( xInStream )
, m_nCurPos( 0 )
{
m_xSeekable = uno::Reference< io::XSeekable >( m_xInStream, uno::UNO_QUERY );
if ( !m_rMutexRef.Is() || !m_xInStream.is() || !m_xSeekable.is() )
{
OSL_ENSURE( sal_False, "Wrong initialization of wrapping stream!\n" );
throw uno::RuntimeException();
}
}
WrapStreamForShare::~WrapStreamForShare()
{
}
// XInputStream
sal_Int32 SAL_CALL WrapStreamForShare::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
m_xSeekable->seek( m_nCurPos );
sal_Int32 nRead = m_xInStream->readBytes( aData, nBytesToRead );
m_nCurPos += nRead;
return nRead;
}
sal_Int32 SAL_CALL WrapStreamForShare::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
m_xSeekable->seek( m_nCurPos );
sal_Int32 nRead = m_xInStream->readSomeBytes( aData, nMaxBytesToRead );
m_nCurPos += nRead;
return nRead;
}
void SAL_CALL WrapStreamForShare::skipBytes( sal_Int32 nBytesToSkip )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
m_xSeekable->seek( m_nCurPos );
m_xInStream->skipBytes( nBytesToSkip );
m_nCurPos = m_xSeekable->getPosition();
}
sal_Int32 SAL_CALL WrapStreamForShare::available()
throw ( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
return m_xInStream->available();
}
void SAL_CALL WrapStreamForShare::closeInput()
throw ( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
// the package is the owner so it will close the stream
// m_xInStream->closeInput();
m_xInStream = uno::Reference< io::XInputStream >();
m_xSeekable = uno::Reference< io::XSeekable >();
}
// XSeekable
void SAL_CALL WrapStreamForShare::seek( sal_Int64 location )
throw ( lang::IllegalArgumentException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
// let stream implementation do all the checking
m_xSeekable->seek( location );
m_nCurPos = m_xSeekable->getPosition();
}
sal_Int64 SAL_CALL WrapStreamForShare::getPosition()
throw ( io::IOException,
uno::RuntimeException)
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
return m_nCurPos;
}
sal_Int64 SAL_CALL WrapStreamForShare::getLength()
throw ( io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
if ( !m_xInStream.is() )
throw io::IOException(); // TODO
return m_xSeekable->getLength();
}
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