office-gobmx/svl/source/fsstor/oinputstreamcontainer.cxx

347 lines
10 KiB
C++

/*************************************************************************
*
* 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.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svl.hxx"
#include "oinputstreamcontainer.hxx"
#include <cppuhelper/typeprovider.hxx>
using namespace ::com::sun::star;
//-----------------------------------------------
OFSInputStreamContainer::OFSInputStreamContainer( const uno::Reference< io::XInputStream >& xStream )
: m_xInputStream( xStream )
, m_xSeekable( xStream, uno::UNO_QUERY )
, m_bSeekable( sal_False )
, m_bDisposed( sal_False )
, m_pListenersContainer( NULL )
{
m_bSeekable = m_xSeekable.is();
}
//-----------------------------------------------
OFSInputStreamContainer::~OFSInputStreamContainer()
{
if ( m_pListenersContainer )
{
delete m_pListenersContainer;
m_pListenersContainer = NULL;
}
}
//-----------------------------------------------
uno::Sequence< uno::Type > SAL_CALL OFSInputStreamContainer::getTypes()
throw ( uno::RuntimeException )
{
static ::cppu::OTypeCollection* pTypeCollection = NULL ;
if ( pTypeCollection == NULL )
{
::osl::MutexGuard aGuard( m_aMutex ) ;
if ( pTypeCollection == NULL )
{
if ( m_bSeekable )
{
static ::cppu::OTypeCollection aTypeCollection(
::getCppuType(( const uno::Reference< io::XStream >* )NULL ),
::getCppuType(( const uno::Reference< io::XInputStream >* )NULL ),
::getCppuType(( const uno::Reference< io::XSeekable >* )NULL ) );
pTypeCollection = &aTypeCollection ;
}
else
{
static ::cppu::OTypeCollection aTypeCollection(
::getCppuType(( const uno::Reference< io::XStream >* )NULL ),
::getCppuType(( const uno::Reference< io::XInputStream >* )NULL ) );
pTypeCollection = &aTypeCollection ;
}
}
}
return pTypeCollection->getTypes() ;
}
//-----------------------------------------------
uno::Any SAL_CALL OFSInputStreamContainer::queryInterface( const uno::Type& rType )
throw( uno::RuntimeException )
{
// Attention:
// Don't use mutex or guard in this method!!! Is a method of XInterface.
uno::Any aReturn;
if ( m_bSeekable )
aReturn = uno::Any( ::cppu::queryInterface( rType,
static_cast< io::XStream* >( this ),
static_cast< io::XInputStream* >( this ),
static_cast< io::XSeekable* >( this ) ) );
else
aReturn = uno::Any( ::cppu::queryInterface( rType,
static_cast< io::XStream* >( this ),
static_cast< io::XInputStream* >( this ) ) );
if ( aReturn.hasValue() == sal_True )
return aReturn ;
return ::cppu::OWeakObject::queryInterface( rType ) ;
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::acquire()
throw()
{
::cppu::OWeakObject::acquire();
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::release()
throw()
{
::cppu::OWeakObject::release();
}
//-----------------------------------------------
sal_Int32 SAL_CALL OFSInputStreamContainer::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
throw uno::RuntimeException();
return m_xInputStream->readBytes( aData, nBytesToRead );
}
//-----------------------------------------------
sal_Int32 SAL_CALL OFSInputStreamContainer::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
throw uno::RuntimeException();
return m_xInputStream->readSomeBytes( aData, nMaxBytesToRead );
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::skipBytes( sal_Int32 nBytesToSkip )
throw ( io::NotConnectedException,
io::BufferSizeExceededException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
throw uno::RuntimeException();
m_xInputStream->skipBytes( nBytesToSkip );
}
//-----------------------------------------------
sal_Int32 SAL_CALL OFSInputStreamContainer::available( )
throw ( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
throw uno::RuntimeException();
return m_xInputStream->available();
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::closeInput( )
throw ( io::NotConnectedException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
throw uno::RuntimeException();
dispose();
}
//-----------------------------------------------
uno::Reference< io::XInputStream > SAL_CALL OFSInputStreamContainer::getInputStream()
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
return uno::Reference< io::XInputStream >();
return uno::Reference< io::XInputStream >( static_cast< io::XInputStream* >( this ), uno::UNO_QUERY );
}
//-----------------------------------------------
uno::Reference< io::XOutputStream > SAL_CALL OFSInputStreamContainer::getOutputStream()
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
return uno::Reference< io::XOutputStream >();
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::seek( sal_Int64 location )
throw ( lang::IllegalArgumentException,
io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
m_xSeekable->seek( location );
}
//-----------------------------------------------
sal_Int64 SAL_CALL OFSInputStreamContainer::getPosition()
throw ( io::IOException,
uno::RuntimeException)
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
return m_xSeekable->getPosition();
}
//-----------------------------------------------
sal_Int64 SAL_CALL OFSInputStreamContainer::getLength()
throw ( io::IOException,
uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xSeekable.is() )
throw uno::RuntimeException();
return m_xSeekable->getLength();
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::dispose( )
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_xInputStream.is() )
throw uno::RuntimeException();
m_xInputStream->closeInput();
if ( m_pListenersContainer )
{
lang::EventObject aSource( static_cast< ::cppu::OWeakObject*>( this ) );
m_pListenersContainer->disposeAndClear( aSource );
}
m_bDisposed = sal_True;
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::addEventListener( const uno::Reference< lang::XEventListener >& xListener )
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( !m_pListenersContainer )
m_pListenersContainer = new ::cppu::OInterfaceContainerHelper( m_aMutex );
m_pListenersContainer->addInterface( xListener );
}
//-----------------------------------------------
void SAL_CALL OFSInputStreamContainer::removeEventListener( const uno::Reference< lang::XEventListener >& xListener )
throw ( uno::RuntimeException )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException();
if ( m_pListenersContainer )
m_pListenersContainer->removeInterface( xListener );
}