/// <summary>
/// Clear logs. Reset the folder and file URL for later use.
/// </summary>
public void ClearLogs()
{
this.PerformBlockAndWait(() =>
{
this.fileHandle.CloseFile();
this.fileHandle.Dispose();
this.fileHandle = null;
NSFileManager.DefaultManager.Remove(this.folderUrl, out NSError error);
if (error != null)
{
Console.WriteLine($"Failed to clear the log folder!\n{error.LocalizedDescription ?? string.Empty}");
}
// Create a new file handle.
this.fileUrl = null;
this.folderUrl = null;
this.fileHandle = NSFileHandle.OpenUpdateUrl(this.FileUrl, out NSError urlError);
System.Diagnostics.Debug.Assert(this.fileHandle != null, "Failed to create the file handle!");
});
}
private void PlatformWriteFile(string path, string contents)
{
if (FileExists(path))
{
NSFileHandle handle = NSFileHandle.OpenUpdateUrl(NSUrl.CreateFileUrl(new[] { path }), out NSError error);
if (error != null)
{
throw new NSErrorException(error);
}
else
{
handle.SeekToEndOfFile();
handle.WriteData(NSData.FromString(contents));
handle.CloseFile();
}
}
else
{
CreateFile(path, NSData.FromString(contents));
}
}
private Logger()
{
this.fileHandle = NSFileHandle.OpenUpdateUrl(this.FileUrl, out NSError error);
System.Diagnostics.Debug.Assert(this.fileHandle != null, "Failed to create the file handle!");
}
public void WriteFile(string path, string userIdentity, string contents)
{
if (!string.IsNullOrEmpty(path) || !string.IsNullOrEmpty(contents))
{
if (!NSFileManager.DefaultManager.FileExists(path))
{
var dict = new NSMutableDictionary();
UIApplication.SharedApplication.InvokeOnMainThread(() =>
{
NSFileManager.DefaultManager.CreateFile(path, NSData.FromString(contents), dict);
});
_fileProtectionManagerService.ProtectFile(path, userIdentity);
_fileProtectionManagerService.EncryptFile(path, userIdentity);
}
else
{
NSFileHandle fileHandle = null;
NSError error = null;
Exception exception = null;
try
{
UIApplication.SharedApplication.InvokeOnMainThread(() =>
{
_fileProtectionManagerService.DecryptFile(path);
fileHandle = NSFileHandle.OpenUpdateUrl(NSUrl.CreateFileUrl(new[] { path }), out error);
fileHandle.SeekToEndOfFile();
fileHandle.WriteData(NSData.FromString(contents));
_fileProtectionManagerService.ProtectFile(path, userIdentity);
_fileProtectionManagerService.EncryptFile(path, userIdentity);
});
}
catch (Exception ex)
{
exception = ex;
}
finally
{
if (fileHandle != null)
{
UIApplication.SharedApplication.InvokeOnMainThread(() =>
{
fileHandle.CloseFile();
});
}
}
if (error != null)
{
_loggingService.LogError(typeof(FileSystemService), new Exception(error.DebugDescription), error.Description);
throw new NSErrorException(error);
}
else if (exception != null)
{
_loggingService.LogError(typeof(FileSystemService), exception, exception.Message);
throw exception;
}
}
}
}