/// <summary>
/// Adds the specified provider.
/// </summary>
/// <param name="provider">The provider.</param>
public void Add(NetTiersProvider provider)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
if (!(provider is NetTiersProvider))
{
throw new ArgumentException("Invalid provider type", "provider");
}
base.Add(provider);
}
private static void LoadProviders()
{
// Avoid claiming lock if providers are already loaded
if (_provider == null)
{
lock (SyncRoot)
{
// Do this again to make sure _provider is still null
if (_provider == null)
{
// Load registered providers and point _provider to the default provider
_providers = new NetTiersProviderCollection();
ProvidersHelper.InstantiateProviders(NetTiersSection.Providers, _providers, typeof(NetTiersProvider));
_provider = _providers[NetTiersSection.DefaultProvider];
if (_provider == null)
{
throw new ProviderException("Unable to load default NetTiersProvider");
}
}
}
}
}
/// <summary>
/// Instantiates the configured providers based on the supplied connection string.
/// </summary>
private void LoadProviders()
{
DataRepository.LoadProviders();
// Avoid claiming lock if providers are already loaded
if ( _providers == null )
{
lock ( SyncRoot )
{
// Do this again to make sure _provider is still null
if ( _providers == null )
{
// apply connection information to each provider
for ( int i = 0; i < NetTiersSection.Providers.Count; i++ )
{
NetTiersSection.Providers[i].Parameters["connectionStringName"] = _connectionStringName;
// remove previous connection string, if any
NetTiersSection.Providers[i].Parameters.Remove("connectionString");
if ( !String.IsNullOrEmpty(_connectionString) )
{
NetTiersSection.Providers[i].Parameters["connectionString"] = _connectionString;
}
}
// Load registered providers and point _provider to the default provider
_providers = new NetTiersProviderCollection();
ProvidersHelper.InstantiateProviders(NetTiersSection.Providers, _providers, typeof(NetTiersProvider));
_provider = _providers[NetTiersSection.DefaultProvider];
}
}
}
}