1d6256fa12
2005/09/05 18:49:10 rt 1.12.218.1: #i54170# Change license header: remove SISSL
202 lines
6.1 KiB
C++
202 lines
6.1 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: ByteGrabber.cxx,v $
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*
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* $Revision: 1.13 $
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*
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* last change: $Author: rt $ $Date: 2005-09-08 16:11:01 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#ifndef _BYTE_GRABBER_HXX_
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#include <ByteGrabber.hxx>
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#endif
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#ifndef _COM_SUN_STAR_IO_XSEEKABLE_HPP_
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#include <com/sun/star/io/XSeekable.hpp>
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#endif
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#ifndef _COM_SUN_STAR_IO_XINPUTSTREAM_HPP_
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#include <com/sun/star/io/XInputStream.hpp>
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#endif
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using namespace ::com::sun::star;
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/** ByteGrabber implements the >> operators on an XOutputStream. This is
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* potentially quite slow and may need to be optimised
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*/
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ByteGrabber::ByteGrabber(uno::Reference < io::XInputStream > xIstream)
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: xStream(xIstream)
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, xSeek (xIstream, uno::UNO_QUERY )
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, aSequence ( 4 )
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{
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pSequence = aSequence.getArray();
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}
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ByteGrabber::~ByteGrabber()
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{
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}
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void ByteGrabber::setInputStream (uno::Reference < io::XInputStream > xNewStream)
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{
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xStream = xNewStream;
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xSeek = uno::Reference < io::XSeekable > (xNewStream, uno::UNO_QUERY);
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}
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// XInputStream chained
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sal_Int32 SAL_CALL ByteGrabber::readBytes( uno::Sequence< sal_Int8 >& aData,
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sal_Int32 nBytesToRead )
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throw(io::NotConnectedException, io::BufferSizeExceededException, io::IOException, uno::RuntimeException)
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{
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return xStream->readBytes(aData, nBytesToRead );
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}
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sal_Int32 SAL_CALL ByteGrabber::readSomeBytes( uno::Sequence< sal_Int8 >& aData,
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sal_Int32 nMaxBytesToRead )
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throw(io::NotConnectedException, io::BufferSizeExceededException, io::IOException, uno::RuntimeException)
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{
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return xStream->readSomeBytes( aData, nMaxBytesToRead );
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}
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void SAL_CALL ByteGrabber::skipBytes( sal_Int32 nBytesToSkip )
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throw(io::NotConnectedException, io::BufferSizeExceededException, io::IOException, uno::RuntimeException)
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{
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xStream->skipBytes( nBytesToSkip );
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}
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sal_Int32 SAL_CALL ByteGrabber::available( )
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throw(io::NotConnectedException, io::IOException, uno::RuntimeException)
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{
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return xStream->available();
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}
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void SAL_CALL ByteGrabber::closeInput( )
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throw(io::NotConnectedException, io::IOException, uno::RuntimeException)
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{
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xStream->closeInput();
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}
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// XSeekable chained...
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sal_Int64 SAL_CALL ByteGrabber::seek( sal_Int64 location )
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throw(lang::IllegalArgumentException, io::IOException, uno::RuntimeException)
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{
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if (xSeek.is() )
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{
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sal_Int64 nLen = xSeek->getLength();
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if ( location < 0 || location > nLen )
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throw lang::IllegalArgumentException();
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if (location > nLen )
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location = nLen;
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xSeek->seek( location );
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return location;
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}
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else
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throw io::IOException();
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}
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sal_Int64 SAL_CALL ByteGrabber::getPosition( )
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throw(io::IOException, uno::RuntimeException)
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{
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if (xSeek.is() )
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return xSeek->getPosition();
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else
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throw io::IOException();
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}
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sal_Int64 SAL_CALL ByteGrabber::getLength( )
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throw(io::IOException, uno::RuntimeException)
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{
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if (xSeek.is() )
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return xSeek->getLength();
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else
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throw io::IOException();
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}
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ByteGrabber& ByteGrabber::operator >> (sal_Int8& rInt8)
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{
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if (xStream->readBytes(aSequence,1) != 1)
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rInt8 = 0;
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else
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rInt8 = aSequence[0] & 0xFF;
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return *this;
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}
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ByteGrabber& ByteGrabber::operator >> (sal_Int16& rInt16)
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{
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if (xStream->readBytes ( aSequence, 2) != 2)
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rInt16 = 0;
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else
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{
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pSequence = aSequence.getConstArray();
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rInt16 = static_cast <sal_Int16>
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( pSequence[0] & 0xFF
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| (pSequence[1] & 0xFF) << 8);
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}
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return *this;
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}
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ByteGrabber& ByteGrabber::operator >> (sal_Int32& rInt32)
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{
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if (xStream->readBytes(aSequence, 4) != 4)
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rInt32 = 0;
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else
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{
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pSequence = aSequence.getConstArray();
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rInt32 = static_cast < sal_Int32 >
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( pSequence[0] & 0xFF
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| ( pSequence[1] & 0xFF ) << 8
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| ( pSequence[2] & 0xFF ) << 16
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| ( pSequence[3] & 0xFF ) << 24 );
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}
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return *this;
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}
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ByteGrabber& ByteGrabber::operator >> (sal_uInt8& rInt8)
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{
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if (xStream->readBytes(aSequence,1) != 1)
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rInt8 = 0;
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else
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rInt8 = static_cast < sal_uInt8 > (aSequence[0] & 0xFF );
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return *this;
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}
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ByteGrabber& ByteGrabber::operator >> (sal_uInt16& rInt16)
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{
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if (xStream->readBytes(aSequence, 2) != 2)
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rInt16 = 0;
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else
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{
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pSequence = aSequence.getConstArray();
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rInt16 = static_cast <sal_uInt16>
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( pSequence[0] & 0xFF
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| (pSequence[1] & 0xFF) << 8);
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}
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return *this;
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}
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ByteGrabber& ByteGrabber::operator >> (sal_uInt32& ruInt32)
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{
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if (xStream->readBytes(aSequence, 4) != 4)
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ruInt32 = 0;
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else
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{
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pSequence = aSequence.getConstArray();
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ruInt32 = static_cast < sal_uInt32 >
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( pSequence[0] & 0xFF
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| ( pSequence[1] & 0xFF ) << 8
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| ( pSequence[2] & 0xFF ) << 16
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| ( pSequence[3] & 0xFF ) << 24 );
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}
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return *this;
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}
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