private void CreateStreams(string filePath, string streamName, FileMode fileMode, FileAccess fileAccess, FileShare fileShare, Encoding fileEncoding)
{
if (File.Exists(filePath) && (this.provider.Force != 0))
{
this.oldAttributes = File.GetAttributes(filePath);
this.haveOldAttributes = true;
System.IO.FileAttributes hidden = System.IO.FileAttributes.Hidden;
if ((fileAccess & FileAccess.Write) != 0)
{
hidden |= System.IO.FileAttributes.ReadOnly;
}
File.SetAttributes(this.path, File.GetAttributes(filePath) & ~hidden);
}
FileAccess access = fileAccess;
if ((fileAccess & FileAccess.Write) != 0)
{
fileAccess = FileAccess.ReadWrite;
}
try
{
if (!string.IsNullOrEmpty(streamName))
{
this.stream = AlternateDataStreamUtilities.CreateFileStream(filePath, streamName, fileMode, fileAccess, fileShare);
}
else
{
this.stream = new FileStream(filePath, fileMode, fileAccess, fileShare);
}
}
catch (IOException)
{
if (!string.IsNullOrEmpty(streamName))
{
this.stream = AlternateDataStreamUtilities.CreateFileStream(filePath, streamName, fileMode, access, fileShare);
}
else
{
this.stream = new FileStream(filePath, fileMode, access, fileShare);
}
}
if (!this.usingByteEncoding)
{
if ((fileAccess & FileAccess.Read) != 0)
{
this.reader = new StreamReader(this.stream, fileEncoding);
this._backReader = new FileStreamBackReader(this.stream, fileEncoding);
}
if ((fileAccess & FileAccess.Write) != 0)
{
if ((this.reader != null) && ((fileAccess & FileAccess.Read) != 0))
{
this.reader.Peek();
fileEncoding = this.reader.CurrentEncoding;
}
this.writer = new StreamWriter(this.stream, fileEncoding);
}
}
}
} // Read
private void CreateStreams(string filePath, string streamName, FileMode fileMode, FileAccess fileAccess, FileShare fileShare, Encoding fileEncoding)
{
// Try to mask off the ReadOnly, and Hidden attributes
// if they've specified Force.
if (File.Exists(filePath) && _provider.Force)
{
// Store the old attributes so that we can recover them
// in the Close();
_oldAttributes = File.GetAttributes(filePath);
_haveOldAttributes = true;
// Clear the hidden attribute, and if we're writing, also clear readonly.
var attributesToClear = FileAttributes.Hidden;
if ((fileAccess & (FileAccess.Write)) != 0)
{
attributesToClear |= FileAttributes.ReadOnly;
}
File.SetAttributes(_path, (File.GetAttributes(filePath) & ~attributesToClear));
}
// If we want to write to the stream, attempt to open it for reading as well
// so that we can determine the file encoding as we append to it
FileAccess requestedAccess = fileAccess;
if ((fileAccess & (FileAccess.Write)) != 0)
{
fileAccess = FileAccess.ReadWrite;
}
try
{
if (!String.IsNullOrEmpty(streamName))
{
_stream = AlternateDataStreamUtilities.CreateFileStream(filePath, streamName, fileMode, fileAccess, fileShare);
}
else
{
_stream = new FileStream(filePath, fileMode, fileAccess, fileShare);
}
}
catch (IOException)
{
if (!String.IsNullOrEmpty(streamName))
{
_stream = AlternateDataStreamUtilities.CreateFileStream(filePath, streamName, fileMode, requestedAccess, fileShare);
}
else
{
_stream = new FileStream(filePath, fileMode, requestedAccess, fileShare);
}
}
if (!_usingByteEncoding)
{
// Open the reader stream
if ((fileAccess & (FileAccess.Read)) != 0)
{
_reader = new StreamReader(_stream, fileEncoding);
_backReader = new FileStreamBackReader(_stream, fileEncoding);
}
// Open the writer stream
if ((fileAccess & (FileAccess.Write)) != 0)
{
// Ensure we are using the proper encoding
if ((_reader != null) &&
((fileAccess & (FileAccess.Read)) != 0))
{
_reader.Peek();
fileEncoding = _reader.CurrentEncoding;
}
_writer = new StreamWriter(_stream, fileEncoding);
}
}
}
private void CreateStreams(string filePath, string streamName, FileMode fileMode, FileAccess fileAccess, FileShare fileShare, Encoding fileEncoding)
{
if (File.Exists(filePath) && (this.provider.Force != 0))
{
this.oldAttributes = File.GetAttributes(filePath);
this.haveOldAttributes = true;
System.IO.FileAttributes hidden = System.IO.FileAttributes.Hidden;
if ((fileAccess & FileAccess.Write) != 0)
{
hidden |= System.IO.FileAttributes.ReadOnly;
}
File.SetAttributes(this.path, File.GetAttributes(filePath) & ~hidden);
}
FileAccess access = fileAccess;
if ((fileAccess & FileAccess.Write) != 0)
{
fileAccess = FileAccess.ReadWrite;
}
try
{
if (!string.IsNullOrEmpty(streamName))
{
this.stream = AlternateDataStreamUtilities.CreateFileStream(filePath, streamName, fileMode, fileAccess, fileShare);
}
else
{
this.stream = new FileStream(filePath, fileMode, fileAccess, fileShare);
}
}
catch (IOException)
{
if (!string.IsNullOrEmpty(streamName))
{
this.stream = AlternateDataStreamUtilities.CreateFileStream(filePath, streamName, fileMode, access, fileShare);
}
else
{
this.stream = new FileStream(filePath, fileMode, access, fileShare);
}
}
if (!this.usingByteEncoding)
{
if ((fileAccess & FileAccess.Read) != 0)
{
this.reader = new StreamReader(this.stream, fileEncoding);
this._backReader = new FileStreamBackReader(this.stream, fileEncoding);
}
if ((fileAccess & FileAccess.Write) != 0)
{
if ((this.reader != null) && ((fileAccess & FileAccess.Read) != 0))
{
this.reader.Peek();
fileEncoding = this.reader.CurrentEncoding;
}
this.writer = new StreamWriter(this.stream, fileEncoding);
}
}
}
