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annotate Implab.ServiceHost/Unity/FactoryActivator.cs @ 281:e0916ddc9950 v3 tip

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code cleanup and refactoring
author cin
date Fri, 01 Jun 2018 21:35:24 +0300
parents 8714471e8d78
children
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1 using System;
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2 using System.Collections.Generic;
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3 using System.Reflection;
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4 using Implab.Components;
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5 using Unity;
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6 using Unity.Injection;
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7 using Unity.Lifetime;
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9 namespace Implab.ServiceHost.Unity {
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10 public class FactoryActivator : ITypeRegistration {
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11
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12 class FactoryInjector : ITypeMemberInjection {
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13 public InjectionFactory Factory { get; set; }
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14 public void Visit(TypeRegistrationBuilder builder) {
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15 builder.AddInjectionMember(Factory);
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16 }
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17 }
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18
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20 public Type FactoryType { get; set; }
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22 public string FactoryName { get; set; }
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23
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24 public Type RegistrationType { get; set; }
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25
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26 public LifetimeManager Lifetime { get; set; }
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27
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28 public IEnumerable<ITypeMemberInjection> MemberInjections {
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29 get {
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30 yield return new FactoryInjector {
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31 Factory = (InjectionFactory)GetType()
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32 .GetMethod(nameof(CreateInjectionFactory), BindingFlags.Static | BindingFlags.NonPublic)
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33 .MakeGenericMethod(FactoryType, RegistrationType)
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34 .Invoke(null, new [] { FactoryName })
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35 };
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36 }
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37 }
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38
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39 public string Name { get; set; }
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40
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41 public Type GetRegistrationType(ContainerBuilder builder) {
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42 return RegistrationType;
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43 }
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44
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45 public LifetimeManager GetLifetime(ContainerBuilder builder) {
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46 return Lifetime;
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47 }
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48
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49 public Type GetImplementationType(ContainerBuilder builder) {
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50 return null;
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51 }
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52
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53 /// <summary>
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54 /// Указывает зависимость, реализующую интерфейс <see cref="IFactory{TObj}"/>,
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55 /// которая будет использоваться в качестве фабрики для создания объектов
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56 /// </summary>
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57 /// <param name="dependencyName"></param>
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58 static InjectionFactory CreateInjectionFactory<TFac, TObj>(string dependencyName) where TFac : IFactory<TObj> {
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59
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60 return new InjectionFactory(c => c.Resolve<TFac>(dependencyName).Create());
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61 }
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62 }
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63 }