ucb/source/ucp/gvfs/stream.hxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: stream.hxx,v $
  10  * $Revision: 1.5 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30 #ifndef _GVFSSTREAM_HXX_
  31 #define _GVFSSTREAM_HXX_
  32
  33 #include <sal/types.h>
  34 #include <rtl/ustring.hxx>
  35 #include <cppuhelper/weak.hxx>
  36 #include <com/sun/star/io/XStream.hpp>
  37 #include <com/sun/star/io/XInputStream.hpp>
  38 #include <com/sun/star/io/XOutputStream.hpp>
  39 #include <com/sun/star/io/XTruncate.hpp>
  40 #include <com/sun/star/io/XSeekable.hpp>
  41
  42 #include <libgnomevfs/gnome-vfs-handle.h>
  43
  44 namespace gvfs
  45 {
  46
  47 class Stream : public ::com::sun::star::io::XStream,
  48            public ::com::sun::star::io::XInputStream,
  49            public ::com::sun::star::io::XOutputStream,
  50            public ::com::sun::star::io::XTruncate,
  51            public ::com::sun::star::io::XSeekable,
  52            public ::cppu::OWeakObject
  53 {
  54 private:
  55     GnomeVFSHandle  *m_handle;
  56     GnomeVFSFileInfo m_info;
  57     osl::Mutex       m_aMutex;
  58     sal_Bool         m_eof;
  59     sal_Bool         m_bInputStreamCalled;
  60     sal_Bool         m_bOutputStreamCalled;
  61         gchar           *m_pURI;     // necessary to be able to simulate gnome_vfs_truncate if not supported
  62         GnomeVFSOpenMode m_nOpenMode;// necessary to be able to simulate gnome_vfs_truncate if not supported
  63
  64     void throwOnError( GnomeVFSResult result )
  65         throw( ::com::sun::star::io::NotConnectedException,
  66                ::com::sun::star::io::BufferSizeExceededException,
  67                ::com::sun::star::io::IOException,
  68                ::com::sun::star::uno::RuntimeException );
  69
  70     void closeStream( void )
  71         throw( ::com::sun::star::io::NotConnectedException,
  72                ::com::sun::star::io::IOException,
  73                ::com::sun::star::uno::RuntimeException );
  74
  75 public:
  76     Stream ( GnomeVFSHandle         *handle,
  77                  const GnomeVFSFileInfo *aInfo,
  78                  const gchar *uri,
  79                  GnomeVFSOpenMode open_mode );
  80     virtual ~Stream();
  81
  82     // XInterface
  83     virtual com::sun::star::uno::Any SAL_CALL queryInterface(const ::com::sun::star::uno::Type & type )
  84         throw( ::com::sun::star::uno::RuntimeException );
  85     virtual void SAL_CALL acquire( void )
  86         throw ()
  87             { OWeakObject::acquire(); }
  88     virtual void SAL_CALL release( void )
  89         throw()
  90             { OWeakObject::release(); }
  91
  92     // XStream
  93     virtual com::sun::star::uno::Reference< com::sun::star::io::XInputStream > SAL_CALL getInputStream(  )
  94         throw( com::sun::star::uno::RuntimeException );
  95
  96     virtual com::sun::star::uno::Reference< com::sun::star::io::XOutputStream > SAL_CALL getOutputStream(  )
  97         throw( com::sun::star::uno::RuntimeException );
  98
  99     // XInputStream
 100     virtual sal_Int32 SAL_CALL readBytes(
 101               ::com::sun::star::uno::Sequence< sal_Int8 > & aData,
 102             sal_Int32 nBytesToRead )
 103                 throw( ::com::sun::star::io::NotConnectedException,
 104                           ::com::sun::star::io::BufferSizeExceededException,
 105                           ::com::sun::star::io::IOException,
 106                           ::com::sun::star::uno::RuntimeException );
 107
 108     virtual sal_Int32 SAL_CALL readSomeBytes(
 109             ::com::sun::star::uno::Sequence< sal_Int8 > & aData,
 110             sal_Int32 nMaxBytesToRead )
 111                 throw( ::com::sun::star::io::NotConnectedException,
 112                           ::com::sun::star::io::BufferSizeExceededException,
 113                           ::com::sun::star::io::IOException,
 114                           ::com::sun::star::uno::RuntimeException );
 115
 116     virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip )
 117                 throw( ::com::sun::star::io::NotConnectedException,
 118                           ::com::sun::star::io::BufferSizeExceededException,
 119                           ::com::sun::star::io::IOException,
 120                           ::com::sun::star::uno::RuntimeException );
 121
 122     virtual sal_Int32 SAL_CALL available( void )
 123                 throw( ::com::sun::star::io::NotConnectedException,
 124                           ::com::sun::star::io::IOException,
 125                           ::com::sun::star::uno::RuntimeException );
 126
 127     virtual void SAL_CALL closeInput( void )
 128                 throw( ::com::sun::star::io::NotConnectedException,
 129                           ::com::sun::star::io::IOException,
 130                           ::com::sun::star::uno::RuntimeException );
 131
 132     // XSeekable
 133     virtual void SAL_CALL seek( sal_Int64 location )
 134         throw( ::com::sun::star::lang::IllegalArgumentException,
 135                ::com::sun::star::io::IOException,
 136                ::com::sun::star::uno::RuntimeException );
 137
 138     virtual sal_Int64 SAL_CALL getPosition()
 139         throw( ::com::sun::star::io::IOException,
 140                ::com::sun::star::uno::RuntimeException );
 141
 142     virtual sal_Int64 SAL_CALL getLength()
 143         throw( ::com::sun::star::io::IOException,
 144                ::com::sun::star::uno::RuntimeException );
 145
 146         // XOutputStream
 147     virtual void SAL_CALL writeBytes( const com::sun::star::uno::Sequence< sal_Int8 >& aData )
 148         throw( com::sun::star::io::NotConnectedException,
 149                com::sun::star::io::BufferSizeExceededException,
 150                com::sun::star::io::IOException,
 151                com::sun::star::uno::RuntimeException);
 152
 153     virtual void SAL_CALL flush( void )
 154         throw( com::sun::star::io::NotConnectedException,
 155                com::sun::star::io::BufferSizeExceededException,
 156                com::sun::star::io::IOException,
 157                com::sun::star::uno::RuntimeException);
 158
 159
 160         virtual void SAL_CALL closeOutput( void )
 161         throw( com::sun::star::io::NotConnectedException,
 162                com::sun::star::io::IOException,
 163                com::sun::star::uno::RuntimeException );
 164
 165     // XTruncate
 166     virtual void SAL_CALL truncate( void )
 167         throw( com::sun::star::io::IOException,
 168                com::sun::star::uno::RuntimeException );
 169 };
 170
 171 } // namespace gvfs
 172 #endif // _GVFSSTREAM_HXX_