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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/.
*/
#include <sal/config.h>
#include <com/sun/star/io/IOException.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <sal/log.hxx>
#include <cppuhelper/queryinterface.hxx>
#include "std_inputstream.hxx"
using namespace com::sun::star;
namespace cmis
{
StdInputStream::StdInputStream( boost::shared_ptr< std::istream > const & pStream ) :
m_pStream( pStream ),
m_nLength( 0 )
{
if (m_pStream)
{
auto nInitPos = m_pStream->tellg( );
m_pStream->seekg( 0, std::ios_base::end );
auto nEndPos = m_pStream->tellg( );
m_pStream->seekg( nInitPos, std::ios_base::beg );
m_nLength = sal_Int64( nEndPos - nInitPos );
}
}
StdInputStream::~StdInputStream()
{
}
uno::Any SAL_CALL StdInputStream::queryInterface( const uno::Type& rType )
{
uno::Any aRet = ::cppu::queryInterface( rType,
static_cast< XInputStream* >( this ),
static_cast< XSeekable* >( this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
}
void SAL_CALL StdInputStream::acquire( ) noexcept
{
OWeakObject::acquire();
}
void SAL_CALL StdInputStream::release( ) noexcept
{
OWeakObject::release();
}
sal_Int32 SAL_CALL StdInputStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
{
std::scoped_lock aGuard( m_aMutex );
if ( 0 <= nBytesToRead && aData.getLength() < nBytesToRead )
aData.realloc( nBytesToRead );
if (!m_pStream)
throw io::IOException( );
sal_Int32 nRead = 0;
try
{
m_pStream->read( reinterpret_cast< char* >( aData.getArray( ) ), nBytesToRead );
nRead = m_pStream->gcount();
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
return nRead;
}
sal_Int32 SAL_CALL StdInputStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData,
sal_Int32 nMaxBytesToRead )
{
std::scoped_lock aGuard( m_aMutex );
if ( 0 <= nMaxBytesToRead && aData.getLength() < nMaxBytesToRead )
aData.realloc( nMaxBytesToRead );
if (!m_pStream)
throw io::IOException( );
sal_Int32 nRead = 0;
try
{
nRead = m_pStream->readsome( reinterpret_cast< char* >( aData.getArray( ) ), nMaxBytesToRead );
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
return nRead;
}
void SAL_CALL StdInputStream::skipBytes( sal_Int32 nBytesToSkip )
{
std::scoped_lock aGuard( m_aMutex );
if (!m_pStream)
throw io::IOException( );
try
{
m_pStream->seekg( nBytesToSkip, std::ios_base::cur );
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
}
sal_Int32 SAL_CALL StdInputStream::available( )
{
return std::min<sal_Int64>( SAL_MAX_INT32, m_nLength - getPosition() );
}
void SAL_CALL StdInputStream::closeInput( )
{
// No need to implement this for an istream
}
void SAL_CALL StdInputStream::seek( sal_Int64 location )
{
std::scoped_lock aGuard( m_aMutex );
if ( location < 0 || location > m_nLength )
throw lang::IllegalArgumentException(
"Location can't be negative or greater than the length",
static_cast< cppu::OWeakObject* >( this ), 0 );
if (!m_pStream)
throw io::IOException( );
try
{
m_pStream->clear( ); // may be needed to rewind the stream
m_pStream->seekg( location, std::ios_base::beg );
}
catch ( const std::ios_base::failure& e )
{
SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
throw io::IOException( );
}
}
sal_Int64 SAL_CALL StdInputStream::getPosition( )
{
std::scoped_lock aGuard( m_aMutex );
if (!m_pStream)
throw io::IOException( );
sal_Int64 nPos = m_pStream->tellg( );
if ( -1 == nPos )
throw io::IOException( );
return nPos;
}
sal_Int64 SAL_CALL StdInputStream::getLength( )
{
return m_nLength;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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