/// <summary>
/// Gets the config from the cache if it can, from the source otherwise.
/// </summary>
/// <typeparam name="T">The configuration type</typeparam>
/// <typeparam name="Tm">The configuration metadata type</typeparam>
/// <param name="configurationMetadata">The metadata related to the configuration, default gathered from Type Data</param>
/// <returns>The configuration</returns>
protected internal virtual T GetConfiguration <T, Tm>(Tm configurationMetadata = default(Tm))
where T : IConfiguration <T, Tm>, new()
where Tm : IConfigurationMetadata <T, Tm>, new()
{
Tm metadata = GetMetadataForConfiguration <T, Tm>(configurationMetadata);
ICachedObject <T> cachedObject = CachingService.Retrieve <T>(metadata.ConfigurationName);
T configuration;
if (cachedObject == null || cachedObject.ExpireTime < DateTime.UtcNow || cachedObject.Value == null)
{
configuration = GetConfigurationFromSource <T, Tm>(metadata);
}
else
{
configuration = cachedObject.Value;
}
return(configuration);
}