/// <summary>
/// Save the settings to an xml file.
/// </summary>
/// <param name="fileName">Path of the file.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <returns>A <see cref="Task"/> of the task.</returns>
public async Task SaveAsync(string fileName, CancellationToken cancellationToken)
{
XDocument document = new XDocument(DefaultXmlDeclaration);
XElement settings = new XElement(rootName);
document.Add(settings);
Names.AsParallel().WithCancellation(cancellationToken).ForAll(name =>
{
bool mul = IsMultiple(name);
object propValue = this[name];
if (mul)
{
string[] values = (string[])propValue;
lock (syncLock)
{
settings.Add(values.Select(v => new XElement(name, v)).ToArray());
}
}
else
{
lock (syncLock)
{
settings.Add(new XElement(name, propValue));
}
}
});
using (StreamWriter writer = new StreamWriter(fileName))
{
await document.SaveAsync(writer, SaveOptions.None, cancellationToken);
}
}
/// <summary>
/// Open an xml file and parse it asynchronously.
/// </summary>
/// <param name="fileName">Path of the file.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <returns>A <see cref="Task"/> of the task.</returns>
public async Task OpenAsync(string fileName, CancellationToken cancellationToken)
{
XDocument document = null;
using (StreamReader reader = new StreamReader(fileName))
{
document = await XDocument.LoadAsync(reader, LoadOptions.None, cancellationToken);
}
XElement settings = document.Element(rootName);
Names.AsParallel().WithCancellation(cancellationToken).ForAll(name =>
{
bool mul = IsMultiple(name);
object propValue = null;
if (mul)
{
var elements = settings.Elements(name);
if (elements != null)
{
propValue = elements.Select(e => e.Value).ToArray();
}
}
else
{
var element = settings.Element(name);
if (element != null)
{
propValue = element.Value;
}
}
lock (syncLock)
{
this[name] = propValue;
}
});
}