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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: inputstream.cxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: obo $ $Date: 2006-09-17 01:16:59 $
*
* 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
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmlhelp.hxx"
#ifndef _INPUSTREAM_HXX_
#include "inputstream.hxx"
#endif
using namespace chelp;
using namespace com::sun::star;
using namespace com::sun::star::ucb;
XInputStream_impl::XInputStream_impl( const rtl::OUString& aUncPath )
: m_bIsOpen( false ),
m_aFile( aUncPath )
{
m_bIsOpen = ( osl::FileBase::E_None == m_aFile.open( OpenFlag_Read ) );
}
XInputStream_impl::~XInputStream_impl()
{
closeInput();
}
bool SAL_CALL XInputStream_impl::CtorSuccess()
{
return m_bIsOpen;
};
uno::Any SAL_CALL
XInputStream_impl::queryInterface(
const uno::Type& rType )
throw( uno::RuntimeException)
{
uno::Any aRet = cppu::queryInterface( rType,
SAL_STATIC_CAST( io::XInputStream*,this ),
SAL_STATIC_CAST( io::XSeekable*,this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
}
void SAL_CALL
XInputStream_impl::acquire(
void )
throw()
{
OWeakObject::acquire();
}
void SAL_CALL
XInputStream_impl::release(
void )
throw()
{
OWeakObject::release();
}
sal_Int32 SAL_CALL
XInputStream_impl::readBytes(
uno::Sequence< sal_Int8 >& aData,
sal_Int32 nBytesToRead )
throw( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException)
{
if( ! m_bIsOpen )
throw io::IOException();
aData.realloc(nBytesToRead);
//TODO! translate memory exhaustion (if it were detectable...) into
// io::BufferSizeExceededException
sal_uInt64 nrc;
m_aFile.read( aData.getArray(),sal_uInt64(nBytesToRead),nrc );
// Shrink aData in case we read less than nBytesToRead (XInputStream
// documentation does not tell whether this is required, and I do not know
// if any code relies on this, so be conservative---SB):
if (nrc != sal::static_int_cast<sal_uInt64>( nBytesToRead) )
aData.realloc(sal_Int32(nrc));
return ( sal_Int32 ) nrc;
}
sal_Int32 SAL_CALL
XInputStream_impl::readSomeBytes(
uno::Sequence< sal_Int8 >& aData,
sal_Int32 nMaxBytesToRead )
throw( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException)
{
return readBytes( aData,nMaxBytesToRead );
}
void SAL_CALL
XInputStream_impl::skipBytes(
sal_Int32 nBytesToSkip )
throw( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException)
{
m_aFile.setPos( osl_Pos_Current, sal_uInt64( nBytesToSkip ) );
}
sal_Int32 SAL_CALL
XInputStream_impl::available(
void )
throw( io::NotConnectedException,
io::IOException,
uno::RuntimeException)
{
return 0;
}
void SAL_CALL
XInputStream_impl::closeInput(
void )
throw( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
if( m_bIsOpen )
{
osl::FileBase::RC err = m_aFile.close();
if( err != osl::FileBase::E_None )
throw io::IOException();
m_bIsOpen = false;
}
}
void SAL_CALL
XInputStream_impl::seek(
sal_Int64 location )
throw( lang::IllegalArgumentException,
io::IOException,
uno::RuntimeException )
{
if( location < 0 )
throw lang::IllegalArgumentException();
if( osl::FileBase::E_None != m_aFile.setPos( Pos_Absolut, sal_uInt64( location ) ) )
throw io::IOException();
}
sal_Int64 SAL_CALL
XInputStream_impl::getPosition(
void )
throw( io::IOException,
uno::RuntimeException )
{
sal_uInt64 uPos;
if( osl::FileBase::E_None != m_aFile.getPos( uPos ) )
throw io::IOException();
return sal_Int64( uPos );
}
sal_Int64 SAL_CALL
XInputStream_impl::getLength(
void )
throw( io::IOException,
uno::RuntimeException )
{
osl::FileBase::RC err;
sal_uInt64 uCurrentPos, uEndPos;
err = m_aFile.getPos( uCurrentPos );
if( err != osl::FileBase::E_None )
throw io::IOException();
err = m_aFile.setPos( Pos_End, 0 );
if( err != osl::FileBase::E_None )
throw io::IOException();
err = m_aFile.getPos( uEndPos );
if( err != osl::FileBase::E_None )
throw io::IOException();
err = m_aFile.setPos( Pos_Absolut, uCurrentPos );
if( err != osl::FileBase::E_None )
throw io::IOException();
else
return sal_Int64( uEndPos );
}
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