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 *
 * 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
 *
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 *
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 * 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.
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#ifndef _GVFSSTREAM_HXX_
#define _GVFSSTREAM_HXX_

#include <sal/types.h>
#include <rtl/ustring.hxx>
#include <cppuhelper/weak.hxx>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XTruncate.hpp>
#include <com/sun/star/io/XSeekable.hpp>

#include <libgnomevfs/gnome-vfs-handle.h>

namespace gvfs
{

class Stream : public ::com::sun::star::io::XStream,
           public ::com::sun::star::io::XInputStream,
           public ::com::sun::star::io::XOutputStream,
           public ::com::sun::star::io::XTruncate,
           public ::com::sun::star::io::XSeekable,
           public ::cppu::OWeakObject
{
private:
    GnomeVFSHandle  *m_handle;
    GnomeVFSFileInfo m_info;
    osl::Mutex       m_aMutex;
    sal_Bool         m_eof;
    sal_Bool         m_bInputStreamCalled;
    sal_Bool         m_bOutputStreamCalled;

    void throwOnError( GnomeVFSResult result )
        throw( ::com::sun::star::io::NotConnectedException,
               ::com::sun::star::io::BufferSizeExceededException,
               ::com::sun::star::io::IOException,
               ::com::sun::star::uno::RuntimeException );

    void closeStream( void )
        throw( ::com::sun::star::io::NotConnectedException,
               ::com::sun::star::io::IOException,
               ::com::sun::star::uno::RuntimeException );

public:
    Stream ( GnomeVFSHandle         *handle,
         const GnomeVFSFileInfo *aInfo );
    virtual ~Stream();

    // XInterface
    virtual com::sun::star::uno::Any SAL_CALL queryInterface(const ::com::sun::star::uno::Type & type )
        throw( ::com::sun::star::uno::RuntimeException );
    virtual void SAL_CALL acquire( void )
        throw ()
            { OWeakObject::acquire(); }
    virtual void SAL_CALL release( void )
        throw()
            { OWeakObject::release(); }

    // XStream
    virtual com::sun::star::uno::Reference< com::sun::star::io::XInputStream > SAL_CALL getInputStream(  )
        throw( com::sun::star::uno::RuntimeException );

    virtual com::sun::star::uno::Reference< com::sun::star::io::XOutputStream > SAL_CALL getOutputStream(  )
        throw( com::sun::star::uno::RuntimeException );

    // XInputStream
    virtual sal_Int32 SAL_CALL readBytes(
              ::com::sun::star::uno::Sequence< sal_Int8 > & aData,
            sal_Int32 nBytesToRead )
                throw( ::com::sun::star::io::NotConnectedException,
                          ::com::sun::star::io::BufferSizeExceededException,
                          ::com::sun::star::io::IOException,
                          ::com::sun::star::uno::RuntimeException );

    virtual sal_Int32 SAL_CALL readSomeBytes(
            ::com::sun::star::uno::Sequence< sal_Int8 > & aData,
            sal_Int32 nMaxBytesToRead )
                throw( ::com::sun::star::io::NotConnectedException,
                          ::com::sun::star::io::BufferSizeExceededException,
                          ::com::sun::star::io::IOException,
                          ::com::sun::star::uno::RuntimeException );

    virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip )
                throw( ::com::sun::star::io::NotConnectedException,
                          ::com::sun::star::io::BufferSizeExceededException,
                          ::com::sun::star::io::IOException,
                          ::com::sun::star::uno::RuntimeException );

    virtual sal_Int32 SAL_CALL available( void )
                throw( ::com::sun::star::io::NotConnectedException,
                          ::com::sun::star::io::IOException,
                          ::com::sun::star::uno::RuntimeException );

    virtual void SAL_CALL closeInput( void )
                throw( ::com::sun::star::io::NotConnectedException,
                          ::com::sun::star::io::IOException,
                          ::com::sun::star::uno::RuntimeException );

    // XSeekable
    virtual void SAL_CALL seek( sal_Int64 location )
        throw( ::com::sun::star::lang::IllegalArgumentException,
               ::com::sun::star::io::IOException,
               ::com::sun::star::uno::RuntimeException );

    virtual sal_Int64 SAL_CALL getPosition()
        throw( ::com::sun::star::io::IOException,
               ::com::sun::star::uno::RuntimeException );

    virtual sal_Int64 SAL_CALL getLength()
        throw( ::com::sun::star::io::IOException,
               ::com::sun::star::uno::RuntimeException );

        // XOutputStream
    virtual void SAL_CALL writeBytes( const com::sun::star::uno::Sequence< sal_Int8 >& aData )
        throw( com::sun::star::io::NotConnectedException,
               com::sun::star::io::BufferSizeExceededException,
               com::sun::star::io::IOException,
               com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL flush( void )
        throw( com::sun::star::io::NotConnectedException,
               com::sun::star::io::BufferSizeExceededException,
               com::sun::star::io::IOException,
               com::sun::star::uno::RuntimeException);


        virtual void SAL_CALL closeOutput( void )
        throw( com::sun::star::io::NotConnectedException,
               com::sun::star::io::IOException,
               com::sun::star::uno::RuntimeException );

    // XTruncate
    virtual void SAL_CALL truncate( void )
        throw( com::sun::star::io::IOException,
               com::sun::star::uno::RuntimeException );
};

} // namespace gvfs
#endif // _GVFSSTREAM_HXX_