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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: ZipPackageBuffer.cxx,v $
*
* $Revision: 1.15 $
*
* last change: $Author: hr $ $Date: 2006-06-20 06:14:28 $
*
* 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 _ZIP_PACKAGE_BUFFER_HXX
#include <ZipPackageBuffer.hxx>
#endif
#include <string.h> // for memcpy
using namespace com::sun::star::uno;
using namespace com::sun::star::io;
using com::sun::star::lang::IllegalArgumentException;
ZipPackageBuffer::ZipPackageBuffer(sal_Int64 nNewBufferSize )
: m_nBufferSize (nNewBufferSize)
, m_nEnd(0)
, m_nCurrent(0)
, m_bMustInitBuffer ( sal_True )
{
}
ZipPackageBuffer::ZipPackageBuffer(Sequence < sal_Int8 > &nNewBuffer )
: m_aBuffer ( nNewBuffer )
, m_nEnd ( nNewBuffer.getLength() )
, m_nCurrent( 0 )
, m_bMustInitBuffer ( sal_False )
{
}
ZipPackageBuffer::~ZipPackageBuffer(void)
{
}
sal_Int32 SAL_CALL ZipPackageBuffer::readBytes( Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
if (nBytesToRead < 0)
throw BufferSizeExceededException(::rtl::OUString(),*this);
if (nBytesToRead + m_nCurrent > m_nEnd)
nBytesToRead = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
aData.realloc ( nBytesToRead );
memcpy(aData.getArray(), m_aBuffer.getConstArray() + m_nCurrent, nBytesToRead);
m_nCurrent +=nBytesToRead;
return nBytesToRead;
}
sal_Int32 SAL_CALL ZipPackageBuffer::readSomeBytes( Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
return readBytes(aData, nMaxBytesToRead);
}
void SAL_CALL ZipPackageBuffer::skipBytes( sal_Int32 nBytesToSkip )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
if (nBytesToSkip < 0)
throw BufferSizeExceededException(::rtl::OUString(),*this);
if (nBytesToSkip + m_nCurrent > m_nEnd)
nBytesToSkip = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
m_nCurrent+=nBytesToSkip;
}
sal_Int32 SAL_CALL ZipPackageBuffer::available( )
throw(NotConnectedException, IOException, RuntimeException)
{
return static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
}
void SAL_CALL ZipPackageBuffer::closeInput( )
throw(NotConnectedException, IOException, RuntimeException)
{
}
void SAL_CALL ZipPackageBuffer::writeBytes( const Sequence< sal_Int8 >& aData )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
sal_Int64 nDataLen = aData.getLength(), nCombined = m_nEnd + nDataLen;
if ( nCombined > m_nBufferSize)
{
do
m_nBufferSize *=2;
while (nCombined > m_nBufferSize);
m_aBuffer.realloc(static_cast < sal_Int32 > (m_nBufferSize));
m_bMustInitBuffer = sal_False;
}
else if (m_bMustInitBuffer)
{
m_aBuffer.realloc ( static_cast < sal_Int32 > ( m_nBufferSize ) );
m_bMustInitBuffer = sal_False;
}
memcpy( m_aBuffer.getArray() + m_nCurrent, aData.getConstArray(), static_cast < sal_Int32 > (nDataLen));
m_nCurrent+=nDataLen;
if (m_nCurrent>m_nEnd)
m_nEnd = m_nCurrent;
}
void SAL_CALL ZipPackageBuffer::flush( )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
}
void SAL_CALL ZipPackageBuffer::closeOutput( )
throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
{
}
void SAL_CALL ZipPackageBuffer::seek( sal_Int64 location )
throw( IllegalArgumentException, IOException, RuntimeException)
{
if ( location > m_nEnd || location < 0 )
throw IllegalArgumentException();
m_nCurrent = location;
}
sal_Int64 SAL_CALL ZipPackageBuffer::getPosition( )
throw(IOException, RuntimeException)
{
return m_nCurrent;
}
sal_Int64 SAL_CALL ZipPackageBuffer::getLength( )
throw(IOException, RuntimeException)
{
return m_nEnd;
}
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