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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#ifndef ODMA_INPUTSTREAM_HXX
#define ODMA_INPUTSTREAM_HXX

#include <osl/mutex.hxx>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XTruncate.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <cppuhelper/implbase5.hxx>
 
#include "rtl/ref.hxx"

namespace ucbhelper
{
    class Content;
}
namespace odma
{
    typedef ::cppu::WeakImplHelper5<	::com::sun::star::io::XInputStream,
                                        ::com::sun::star::io::XStream,
                                        ::com::sun::star::io::XTruncate,
                                        ::com::sun::star::io::XSeekable,
                                        ::com::sun::star::io::XOutputStream> OOdmaStreamBase;

    class ContentProvider;
    class ContentProperties;
    class OOdmaStream : public OOdmaStreamBase
    {
        ::osl::Mutex	m_aMutex;
        ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream>	m_xOutput;
        ::com::sun::star::uno::Reference< ::com::sun::star::io::XTruncate>		m_xTruncate;
        ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream>	m_xInput;
        ::com::sun::star::uno::Reference< ::com::sun::star::io::XSeekable>		m_xInputSeek;

        ::rtl::Reference<ContentProperties>	m_aProp;
        ::ucbhelper::Content*		        m_pContent;
        ContentProvider*				    m_pProvider;
        sal_Bool						    m_bInputStreamCalled;
        sal_Bool						    m_bOutputStreamCalled;
        sal_Bool						    m_bModified;

        void ensureInputStream()  throw( ::com::sun::star::io::IOException );
        void ensureOutputStream()  throw( ::com::sun::star::io::IOException );
        void SAL_CALL closeStream() throw(	::com::sun::star::io::NotConnectedException,
                                            ::com::sun::star::io::IOException,
                                            ::com::sun::star::uno::RuntimeException );
    public:
        OOdmaStream(::ucbhelper::Content* _pContent,
                    ContentProvider* _pProvider,
                    const ::rtl::Reference<ContentProperties>& _rProp);
        virtual ~OOdmaStream();
        // com::sun::star::io::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(  )
            throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

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

        // com::sun::star::io::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 );

        // com::sun::star::io::XOutputStream
        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);

        void SAL_CALL flush()
                    throw( com::sun::star::io::NotConnectedException,
                           com::sun::star::io::BufferSizeExceededException,
                           com::sun::star::io::IOException,
                           com::sun::star::uno::RuntimeException);
        void SAL_CALL closeOutput()
                    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 );
        // XSeekable
        void SAL_CALL seek(sal_Int64 location )
            throw( com::sun::star::lang::IllegalArgumentException,
                   com::sun::star::io::IOException,
                   com::sun::star::uno::RuntimeException );
        
        sal_Int64 SAL_CALL getPosition()
            throw( com::sun::star::io::IOException,
                   com::sun::star::uno::RuntimeException );
        
        sal_Int64 SAL_CALL getLength()
            throw( com::sun::star::io::IOException,
                   com::sun::star::uno::RuntimeException );
    };
}
#endif // ODMA_INPUTSTREAM_HXX