public async Task <TryResult <string> > TryReadTextFileAsync(string path, CancellationToken cancellationToken)
{
var contentStringBuilder = new StringBuilder();
var operationSucceeded = await TryReadFileCommonAsync(path, async stream =>
{
using (var reader = new StreamReader(stream))
{
var buffer = new char[BufferSize];
while (reader.Peek() > 0)
{
if (cancellationToken.IsCancellationRequested)
{
return(false);
}
var charsRead = await reader.ReadAsync(buffer, 0, BufferSize);
contentStringBuilder.Append(buffer, 0, charsRead);
}
return(true);
};
}).ConfigureAwait(false);
return(TryResult.Create(operationSucceeded, operationSucceeded ? contentStringBuilder.ToString() : string.Empty));
}
public async Task <TryResult <string> > TryReadTextFileAsync(string path)
{
string content = "";
bool operationSucceeded = await TryReadFileCommonAsync(path, async stream =>
{
using (var reader = new StreamReader(stream))
{
content = await reader.ReadToEndAsync().ConfigureAwait(false);
return(true);
};
}).ConfigureAwait(false);
return(TryResult.Create(operationSucceeded, content));
}
public async Task <TryResult <byte[]> > TryReadBinaryFileAsync(string path)
{
byte[] content = null;
bool operationSucceeded = await TryReadFileCommonAsync(path, async stream =>
{
using (var ms = new MemoryStream())
{
await stream.CopyToAsync(ms).ConfigureAwait(false);
content = ms.ToArray();
return(true);
}
}).ConfigureAwait(false);
return(TryResult.Create(operationSucceeded, content));
}
public async Task <TryResult <byte[]> > TryReadBinaryFileAsync(string path, CancellationToken cancellationToken)
{
byte[] content = null;
var operationSucceeded = await TryReadFileCommonAsync(path, async stream =>
{
using (var ms = new MemoryStream())
{
await stream.CopyToAsync(ms, BufferSize, cancellationToken).ConfigureAwait(false);
if (cancellationToken.IsCancellationRequested)
{
return(false);
}
content = ms.ToArray();
return(true);
}
}).ConfigureAwait(false);
return(TryResult.Create(operationSucceeded, content));
}