public virtual IServiceProvider GetOrAdd([NotNull] IDbContextOptions options)
{
var services = new ServiceCollection();
var builder = services.AddEntityFramework();
foreach (var extension in options.Extensions)
{
extension.ApplyServices(builder);
}
// Decided that this hashing algorithm is robust enough. See issue #762.
unchecked
{
var key = services.Aggregate(0, (t, d) => (t * 397) ^ CalculateHash(d).GetHashCode());
return _configurations.GetOrAdd(key, k => services.BuildServiceProvider());
}
}
public virtual IServiceProvider GetOrAdd(IDbContextOptionsExtensions options)
{
var services = new ServiceCollection();
var builder = services.AddEntityFramework();
foreach (var extension in options.Extensions)
{
extension.ApplyServices(builder);
}
// TODO: Consider more robust hashing algorithm
// Note that no cryptographic algorithm is available on all of phone/store/k/desktop
unchecked
{
var key = services.Aggregate(0, (t, d) => (t * 397) ^ CalculateHash(d).GetHashCode());
return _configurations.GetOrAdd(key, k => services.BuildServiceProvider());
}
}