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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: gio_seekable.cxx,v $
* $Revision: 1.2 $
*
* 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 <rtl/memory.h>
#include <com/sun/star/ucb/InteractiveAugmentedIOException.hpp>
#include <ucbhelper/cancelcommandexecution.hxx>
#include <string.h>
#include "gio_seekable.hxx"
#include "gio_content.hxx"
using namespace com::sun::star;
namespace gio
{
Seekable::Seekable(GSeekable *pStream) : mpStream(pStream)
{
if (!mpStream)
throw io::NotConnectedException();
}
Seekable::~Seekable( void )
{
}
void SAL_CALL Seekable::truncate( void )
throw( io::IOException, uno::RuntimeException )
{
if (!mpStream)
throw io::NotConnectedException();
if (!g_seekable_can_truncate(mpStream))
throw io::IOException(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Truncate unsupported")),
static_cast< cppu::OWeakObject * >(this));
GError *pError=NULL;
if (!g_seekable_truncate(mpStream, 0, NULL, &pError))
convertToException(pError, static_cast< cppu::OWeakObject * >(this));
}
void SAL_CALL Seekable::seek( sal_Int64 location )
throw( lang::IllegalArgumentException, io::IOException, uno::RuntimeException )
{
if (!mpStream)
throw io::NotConnectedException();
if (!g_seekable_can_seek(mpStream))
throw io::IOException(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Seek unsupported")),
static_cast< cppu::OWeakObject * >(this));
GError *pError=NULL;
if (!g_seekable_seek(mpStream, location, G_SEEK_SET, NULL, &pError))
convertToException(pError, static_cast< cppu::OWeakObject * >(this));
}
sal_Int64 SAL_CALL Seekable::getPosition() throw( io::IOException, uno::RuntimeException )
{
if (!mpStream)
throw io::NotConnectedException();
return g_seekable_tell(mpStream);
}
sal_Int64 SAL_CALL Seekable::getLength() throw( io::IOException, uno::RuntimeException )
{
if (!mpStream)
throw io::NotConnectedException();
bool bOk = false;
sal_uInt64 nSize = 0;
GFileInfo* pInfo = G_IS_FILE_INPUT_STREAM(mpStream)
? g_file_input_stream_query_info(G_FILE_INPUT_STREAM(mpStream), const_cast<char*>(G_FILE_ATTRIBUTE_STANDARD_SIZE), NULL, NULL)
: g_file_output_stream_query_info(G_FILE_OUTPUT_STREAM(mpStream), const_cast<char*>(G_FILE_ATTRIBUTE_STANDARD_SIZE), NULL, NULL);
if (pInfo)
{
if (g_file_info_has_attribute(pInfo, G_FILE_ATTRIBUTE_STANDARD_SIZE))
{
nSize = g_file_info_get_size(pInfo);
bOk = true;
}
g_object_unref(pInfo);
}
if (!bOk)
{
GError *pError=NULL;
sal_Int64 nCurr = getPosition();
if (!g_seekable_seek(mpStream, 0, G_SEEK_END, NULL, &pError))
convertToException(pError, static_cast< cppu::OWeakObject * >(this));
nSize = getPosition();
seek(nCurr);
bOk = true;
}
if (!bOk)
throw io::IOException(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Getting size unsupported")),
static_cast< cppu::OWeakObject * >(this));
return nSize;
}
uno::Any Seekable::queryInterface( const uno::Type &type ) throw( uno::RuntimeException )
{
uno::Any aRet = ::cppu::queryInterface ( type,
static_cast< XSeekable * >( this ) );
if (!aRet.hasValue() && g_seekable_can_truncate(mpStream))
aRet = ::cppu::queryInterface ( type, static_cast< XTruncate * >( this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( type );
}
}
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