private static void LoadProviders()
{
// Avoid claiming lock if providers are already loaded
if (_provider == null)
{
lock (_lock)
{
// Do this again to make sure _provider is still null
if (_provider == null)
{
// Get a reference to the <imageService> section
TfsClientProviderSection section = (TfsClientProviderSection)
ConfigurationManager.GetSection("tfsClientProvider");
// Load registered providers and point _provider
// to the default provider
_providers = new TfsClientProviderCollection();
ProvidersHelper.InstantiateProviders
(section.Providers, _providers, typeof(TfsClientProviderBase));
_provider = _providers[section.DefaultProvider];
if (_provider == null)
{
throw new ProviderException("Unable to load default TfsClientProvider");
}
}
}
}
}
public static void SetProvider(string providerName)
{
// Make sure the providers is loaded
LoadProviders();
if (_providers != null && _providers[providerName] != null)
{
_provider = _providers[providerName];
}
}