File: Policies\CompositePolicy.cs
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Project: src\src\Middleware\OutputCaching\src\Microsoft.AspNetCore.OutputCaching.csproj (Microsoft.AspNetCore.OutputCaching)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
namespace Microsoft.AspNetCore.OutputCaching.Policies;
 
/// <summary>
/// A composite policy.
/// </summary>
internal sealed class CompositePolicy : IOutputCachePolicy
{
    private readonly IOutputCachePolicy[] _policies;
 
    /// <summary>
    /// Creates a new instance of <see cref="CompositePolicy"/>
    /// </summary>
    /// <param name="policies">The policies to include.</param>
    public CompositePolicy(params IOutputCachePolicy[] policies)
    {
        _policies = policies;
    }
 
    /// <inheritdoc/>
    async ValueTask IOutputCachePolicy.CacheRequestAsync(OutputCacheContext context, CancellationToken cancellationToken)
    {
        foreach (var policy in _policies)
        {
            await policy.CacheRequestAsync(context, cancellationToken);
        }
    }
 
    /// <inheritdoc/>
    async ValueTask IOutputCachePolicy.ServeFromCacheAsync(OutputCacheContext context, CancellationToken cancellationToken)
    {
        foreach (var policy in _policies)
        {
            await policy.ServeFromCacheAsync(context, cancellationToken);
        }
    }
 
    /// <inheritdoc/>
    async ValueTask IOutputCachePolicy.ServeResponseAsync(OutputCacheContext context, CancellationToken cancellationToken)
    {
        foreach (var policy in _policies)
        {
            await policy.ServeResponseAsync(context, cancellationToken);
        }
    }
}