/// <summary>
/// Loads provider
/// </summary>
static YahooAuthenticationProvider LoadProvider()
{
// Get the names of the providers
// Use the cache because the reflection used later is expensive
Cache cache = HttpRuntime.Cache;
string cacheKey;
YahooAuthenticationProvider _instanceLoader;
YahooAuthenticationProviderConfiguration config = YahooAuthenticationProviderConfiguration.GetConfig();
cacheKey = "YahooAuthenticationProvider::" + config.DefaultProvider;
object oProvider = cache.Get(cacheKey);
if (oProvider != null)
{
_instanceLoader = (YahooAuthenticationProvider)oProvider;
}
else
{
try
{
// Read the configuration specific information for this provider
ProviderAttributes providerAttributes = (ProviderAttributes)config.Providers[config.DefaultProvider];
// The assembly should be in \bin or GAC
Type type = Type.GetType(providerAttributes.Type);
_instanceLoader = (YahooAuthenticationProvider)Activator.CreateInstance(type);
// Initialize the provider with the attributes.
string cStringName = providerAttributes.Attributes["connectionStringName"];
if (!String.IsNullOrEmpty(cStringName) &&
ConfigurationManager.ConnectionStrings != null &&
ConfigurationManager.ConnectionStrings[cStringName] != null)
{
string cString = ConfigurationManager.ConnectionStrings[cStringName].ConnectionString;
providerAttributes.Attributes.Add("connectionString", cString);
}
_instanceLoader.Initialize(providerAttributes.Name, providerAttributes.Attributes);
//pop it into the cache to keep out site from running into the ground :)
cache.Insert(cacheKey, _instanceLoader);
}
catch (Exception e)
{
throw new Exception("Unable to load provider", e);
}
}
return(_instanceLoader);
}
/// <summary>
/// Creates photo provider configuration
/// </summary>
/// <param name="parent"></param>
/// <param name="context"></param>
/// <param name="node"></param>
/// <returns></returns>
public virtual object Create(Object parent, Object context, XmlNode node)
{
YahooAuthenticationProviderConfiguration config = new YahooAuthenticationProviderConfiguration();
config.LoadValuesFromConfigurationXml(node);
return config;
}