/// <summary>
/// Initializes a new instance of the <see cref="RoutableDocumentFilter"/> class.
/// </summary>
public RoutableDocumentFilter(IOptions <GlobalSettings> globalSettings, IOptions <WebRoutingSettings> routingSettings, IHostingEnvironment hostingEnvironment, EndpointDataSource endpointDataSource)
{
_globalSettings = globalSettings.Value;
_routingSettings = routingSettings.Value;
_hostingEnvironment = hostingEnvironment;
_endpointDataSource = endpointDataSource;
_endpointDataSource.GetChangeToken().RegisterChangeCallback(EndpointsChanged, null);
}
private void EndpointsChanged(object value)
{
lock (_routeLocker)
{
// try clearing each entry
foreach (var r in _routeChecks.Keys.ToList())
{
_routeChecks.TryRemove(r, out _);
}
// re-register after it has changed so we keep listening
_endpointDataSource.GetChangeToken().RegisterChangeCallback(EndpointsChanged, null);
}
}
private T Initialize()
{
lock (_lock)
{
var changeToken = _dataSource.GetChangeToken();
_value = _initializeCore(_dataSource.Endpoints);
// Don't resubscribe if we're already disposed.
if (_disposed)
{
return(_value);
}
_disposable = changeToken.RegisterChangeCallback(_initializerWithState, null);
return(_value);
}
}