71 lines
2.0 KiB
C#
71 lines
2.0 KiB
C#
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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.Reflection;
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using TinyIoC;
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namespace NzbDrone.Common
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{
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public abstract class ContainerBuilderBase
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{
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protected TinyIoCContainer Container;
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private readonly List<Type> _loadedTypes;
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protected ContainerBuilderBase(params string[] assemblies)
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{
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Container = new TinyIoCContainer();
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_loadedTypes = new List<Type>();
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foreach (var assembly in assemblies)
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{
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_loadedTypes.AddRange(Assembly.Load(assembly).GetTypes());
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}
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AutoRegisterInterfaces();
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}
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private void AutoRegisterInterfaces()
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{
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var interfaces = _loadedTypes.Where(t => t.IsInterface);
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foreach (var contract in interfaces)
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{
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AutoRegisterImplementations(contract);
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}
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}
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protected void AutoRegisterImplementations<TContract>()
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{
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AutoRegisterImplementations(typeof(TContract));
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}
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private void AutoRegisterImplementations(Type contractType)
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{
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var implementations = GetImplementations(contractType).ToList();
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if (implementations.Count == 0)
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{
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return;
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}
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if (implementations.Count == 1)
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{
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Container.Register(contractType, implementations.Single()).AsMultiInstance();
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}
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else
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{
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Container.RegisterMultiple(contractType, implementations).AsMultiInstance();
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}
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}
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private IEnumerable<Type> GetImplementations(Type contractType)
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{
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return _loadedTypes
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.Where(implementation =>
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contractType.IsAssignableFrom(implementation) &&
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!implementation.IsInterface &&
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!implementation.IsAbstract
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);
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}
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}
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}
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