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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <com/sun/star/io/IOException.hpp>
#include <com/sun/star/io/NotConnectedException.hpp>
#include <cppuhelper/queryinterface.hxx>
#include "gio_seekable.hxx"
#include "gio_content.hxx"
namespace gio
{
Seekable::Seekable(GSeekable *pStream) : mpStream(pStream)
{
if (!mpStream)
throw css::io::NotConnectedException();
}
Seekable::~Seekable()
{
}
void SAL_CALL Seekable::truncate()
{
if (!mpStream)
throw css::io::NotConnectedException();
if (!g_seekable_can_truncate(mpStream))
throw css::io::IOException("Truncate unsupported",
static_cast< cppu::OWeakObject * >(this));
GError *pError=nullptr;
if (!g_seekable_truncate(mpStream, 0, nullptr, &pError))
convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
}
void SAL_CALL Seekable::seek( sal_Int64 location )
{
if (!mpStream)
throw css::io::NotConnectedException();
if (!g_seekable_can_seek(mpStream))
throw css::io::IOException("Seek unsupported",
static_cast< cppu::OWeakObject * >(this));
GError *pError=nullptr;
if (!g_seekable_seek(mpStream, location, G_SEEK_SET, nullptr, &pError))
convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
}
sal_Int64 SAL_CALL Seekable::getPosition()
{
if (!mpStream)
throw css::io::NotConnectedException();
return g_seekable_tell(mpStream);
}
sal_Int64 SAL_CALL Seekable::getLength()
{
if (!mpStream)
throw css::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), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr)
: g_file_output_stream_query_info(G_FILE_OUTPUT_STREAM(mpStream), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr);
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=nullptr;
sal_Int64 nCurr = getPosition();
if (!g_seekable_seek(mpStream, 0, G_SEEK_END, nullptr, &pError))
convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
nSize = getPosition();
seek(nCurr);
}
return nSize;
}
css::uno::Any Seekable::queryInterface( const css::uno::Type &type )
{
css::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 );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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