mcs/class/corlib/System.IO.IsolatedStorage/IsolatedStorageFileStream.cs

   1 // System.IO.IsolatedStorage.IsolatedStorageFileStream
   2 //
   3 // Sean MacIsaac (macisaac@ximian.com)
   4 //
   5 // (C) 2001 Ximian, Inc.
   6 // (C) 2004 Novell (http://www.novell.com)
   7
   8 //
   9 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Globalization;
  33 using System.IO;
  34 using System.Reflection;
  35
  36 namespace System.IO.IsolatedStorage {
  37
  38         public class IsolatedStorageFileStream : FileStream
  39         {
  40                 private static string CreateIsolatedPath (string path)
  41                 {
  42                         string dir = IsolatedStorageInfo.CreateAssemblyFilename (Assembly.GetEntryAssembly());
  43
  44                         string file = Path.Combine (dir, path);
  45
  46                         // Ensure that the file can be created.
  47                         FileInfo fi = new FileInfo (file);
  48                         if (!fi.Directory.Exists)
  49                                 fi.Directory.Create ();
  50
  51                         return file;
  52                 }
  53
  54                 public IsolatedStorageFileStream (string path, FileMode mode)
  55                         : base(CreateIsolatedPath (path), mode)
  56                 {
  57                 }
  58
  59                 public IsolatedStorageFileStream (string path, FileMode mode, FileAccess access)
  60                         : base (CreateIsolatedPath (path), mode, access)
  61                 {
  62                 }
  63
  64                 public IsolatedStorageFileStream (string path, FileMode mode, FileAccess access, FileShare share)
  65                         : base (CreateIsolatedPath (path), mode, access, share)
  66                 {
  67                 }
  68
  69                 public IsolatedStorageFileStream (string path, FileMode mode, FileAccess access, FileShare share, int bufferSize)
  70                         : base (CreateIsolatedPath (path), mode, access, share, bufferSize)
  71                 {
  72                 }
  73
  74                 public IsolatedStorageFileStream (string path, FileMode mode, FileAccess access, FileShare share, int bufferSize, IsolatedStorageFile isf)
  75                         : base (CreateIsolatedPath (path), mode, access, share, bufferSize)
  76                 {
  77                 }
  78
  79                 public IsolatedStorageFileStream (string path, FileMode mode, FileAccess access, FileShare share, IsolatedStorageFile isf)
  80                         : base (CreateIsolatedPath (path), mode, access, share)
  81                 {
  82                 }
  83
  84                 public IsolatedStorageFileStream (string path, FileMode mode, FileAccess access, IsolatedStorageFile isf)
  85                         : base (CreateIsolatedPath (path), mode, access)
  86                 {
  87                 }
  88
  89                 public IsolatedStorageFileStream (string path, FileMode mode, IsolatedStorageFile isf)
  90                         : base (CreateIsolatedPath (path), mode)
  91                 {
  92                 }
  93
  94                 public override bool CanRead {
  95                         get {return base.CanRead;}
  96                 }
  97
  98                 public override bool CanSeek {
  99                         get {return base.CanSeek;}
 100                 }
 101
 102                 public override bool CanWrite {
 103                         get {return base.CanWrite;}
 104                 }
 105
 106                 public override IntPtr Handle {
 107                         get {
 108                                 throw new IsolatedStorageException (
 109                                         Locale.GetText ("Information is restricted"));
 110                         }
 111                 }
 112
 113                 public override bool IsAsync {
 114                         get {return base.IsAsync;}
 115                 }
 116
 117                 public override long Length {
 118                         get {return base.Length;}
 119                 }
 120
 121                 public override long Position {
 122                         get {return base.Position;}
 123                         set {base.Position = value;}
 124                 }
 125
 126                 public override IAsyncResult BeginRead (byte[] buffer, int offset, int numBytes, AsyncCallback userCallback, object stateObject)
 127                 {
 128                         return base.BeginRead (buffer, offset, numBytes, userCallback, stateObject);
 129                 }
 130
 131                 public override IAsyncResult BeginWrite (byte[] buffer, int offset, int numBytes, AsyncCallback userCallback, object stateObject)
 132                 {
 133                         return base.BeginWrite (buffer, offset, numBytes, userCallback, stateObject);
 134                 }
 135
 136                 public override void Close ()
 137                 {
 138                         base.Close ();
 139                 }
 140
 141                 public override int EndRead (IAsyncResult asyncResult)
 142                 {
 143                         return base.EndRead (asyncResult);
 144                 }
 145
 146                 public override void EndWrite (IAsyncResult asyncResult)
 147                 {
 148                         base.EndWrite (asyncResult);
 149                 }
 150
 151                 public override void Flush ()
 152                 {
 153                         base.Flush ();
 154                 }
 155
 156                 public override int Read (byte[] buffer, int offset, int count)
 157                 {
 158                         return base.Read (buffer, offset, count);
 159                 }
 160
 161                 public override int ReadByte ()
 162                 {
 163                         return base.ReadByte ();
 164                 }
 165
 166                 public override long Seek (long offset, SeekOrigin origin)
 167                 {
 168                         return base.Seek (offset, origin);
 169                 }
 170
 171                 public override void SetLength (long value)
 172                 {
 173                         base.SetLength (value);
 174                 }
 175
 176                 public override void Write (byte[] buffer, int offset, int count)
 177                 {
 178                         base.Write (buffer, offset, count);
 179                 }
 180
 181                 public override void WriteByte (byte value)
 182                 {
 183                         base.WriteByte (value);
 184                 }
 185
 186                 protected override void Dispose (bool disposing)
 187                 {
 188                         base.Dispose (disposing);
 189                 }
 190         }
 191 }
 192