// Copyright 2019 Florian Gather <florian.gather@tngtech.com>

// Copyright 2019 Paula Ruiz <paularuiz22@gmail.com>

// Copyright 2019 Fritz Brandhuber <fritz.brandhuber@tngtech.com>

//

// SPDX-License-Identifier: Apache-2.0

using System;

using System.Collections.Concurrent;

using System.Collections.Generic;

using ArchUnitNET.Fluent;

namespace ArchUnitNET.Domain

{

public class ObjectProviderCache

{

private readonly Architecture _architecture;

private readonly ConcurrentDictionary<int, object> _cache;

public ObjectProviderCache(Architecture architecture)

{

_architecture = architecture;

_cache = new ConcurrentDictionary<int, object>();

}

public IEnumerable<T> GetOrCreateObjects<T>(IObjectProvider<T> objectProvider,

Func<Architecture, IEnumerable<T>> providingFunction) where T : ICanBeAnalyzed

{

unchecked

{

var key = (objectProvider.GetHashCode() * 397) ^ objectProvider.GetType().GetHashCode();

return (IEnumerable<T>) _cache.GetOrAdd(key, k => providingFunction(_architecture));

}

}

}

}