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59 lines
2.4 KiB
C#
59 lines
2.4 KiB
C#
// This software is part of the Autofac IoC container
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// Copyright © 2011 Autofac Contributors
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// http://autofac.org
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Web.Mvc;
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using Autofac.Features.Metadata;
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namespace Autofac.Integration.Mvc
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{
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/// <summary>
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/// Autofac implementation of the <see cref="IModelBinderProvider"/> interface.
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/// </summary>
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public class AutofacModelBinderProvider : IModelBinderProvider
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{
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/// <summary>
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/// Metadata key for the supported model types.
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/// </summary>
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internal static readonly string MetadataKey = "SupportedModelTypes";
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/// <summary>
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/// Gets the model binder associated with the provided model type.
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/// </summary>
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/// <param name="modelType">Type of the model.</param>
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/// <returns>An <see cref="IModelBinder"/> instance if found; otherwise, <c>null</c>.</returns>
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public IModelBinder GetBinder(Type modelType)
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{
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var modelBinders = DependencyResolver.Current.GetServices<Meta<Lazy<IModelBinder>>>();
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var modelBinder = modelBinders
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.Where(binder => binder.Metadata.ContainsKey(MetadataKey))
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.FirstOrDefault(binder => ((List<Type>)binder.Metadata[MetadataKey]).Contains(modelType));
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return (modelBinder != null) ? modelBinder.Value.Value : null;
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}
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}
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} |