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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "NeonInputStream.hxx"
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <cppuhelper/queryinterface.hxx>
#include <string.h>
using namespace cppu;
using namespace com::sun::star::io;
using namespace com::sun::star::uno;
using namespace webdav_ucp;
NeonInputStream::NeonInputStream()
: mLen( 0 ),
mPos( 0 )
{
}
NeonInputStream::~NeonInputStream()
{
}
// Allows the caller to add some data to the "end" of the stream
void NeonInputStream::AddToStream( const char * inBuf, sal_Int32 inLen )
{
mInputBuffer.realloc( sal::static_int_cast<sal_Int32>(mLen) + inLen );
memcpy( mInputBuffer.getArray() + mLen, inBuf, inLen );
mLen += inLen;
}
Any NeonInputStream::queryInterface( const Type &type )
{
Any aRet = ::cppu::queryInterface( type,
static_cast< XInputStream * >( this ),
static_cast< XSeekable * >( this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( type );
}
// "Reads" the specified number of bytes from the stream
sal_Int32 SAL_CALL NeonInputStream::readBytes(
css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
{
// Work out how much we're actually going to write
sal_Int32 theBytes2Read = nBytesToRead;
sal_Int32 theBytesLeft = sal::static_int_cast<sal_Int32>(mLen - mPos);
if ( theBytes2Read > theBytesLeft )
theBytes2Read = theBytesLeft;
// Realloc buffer.
aData.realloc( theBytes2Read );
// Write the data
memcpy(
aData.getArray(), mInputBuffer.getConstArray() + mPos, theBytes2Read );
// Update our stream position for next time
mPos += theBytes2Read;
return theBytes2Read;
}
sal_Int32 SAL_CALL NeonInputStream::readSomeBytes(
css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
{
// Warning: What should this be doing ?
return readBytes( aData, nMaxBytesToRead );
}
// Moves the current stream position forward
void SAL_CALL NeonInputStream::skipBytes( sal_Int32 nBytesToSkip )
{
mPos += nBytesToSkip;
if ( mPos >= mLen )
mPos = mLen;
}
// Returns the number of unread bytes currently remaining on the stream
sal_Int32 SAL_CALL NeonInputStream::available( )
{
return std::min<sal_Int64>(SAL_MAX_INT32, mLen - mPos);
}
void SAL_CALL NeonInputStream::closeInput()
{
}
void SAL_CALL NeonInputStream::seek( sal_Int64 location )
{
if ( location < 0 )
throw css::lang::IllegalArgumentException();
if ( location > mLen )
throw css::lang::IllegalArgumentException();
mPos = location;
}
sal_Int64 SAL_CALL NeonInputStream::getPosition()
{
return mPos;
}
sal_Int64 SAL_CALL NeonInputStream::getLength()
{
return mLen;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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