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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| using System; | ||
| using System.Collections.Concurrent; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Reflection; | ||
| using Microsoft.Extensions.Logging; | ||
| using Rocket.Surgery.Conventions.Scanners; | ||
|
|
||
| namespace Rocket.Surgery.Conventions | ||
| { | ||
| public abstract class ConventionComposerBase | ||
| { | ||
| protected void ExecuteRegister(IConventionContext context, List<DelegateOrConvention> items, IEnumerable<Type> types) | ||
| { | ||
| var enumerable = types as Type[] ?? types.ToArray(); | ||
| if (enumerable.Length == 0) return; | ||
|
|
||
| var delegateTypes = enumerable.Where(typeof(Delegate).IsAssignableFrom).ToArray(); | ||
| var conventionTypes = enumerable.Except(delegateTypes).ToArray(); | ||
|
|
||
| context.Logger.LogDebug("Found {Count} conventions or delegates", items.Count); | ||
|
|
||
| foreach (var itemWithIndex in items.Select((item, index) => new { item, index })) | ||
| { | ||
| var item = itemWithIndex.item; | ||
| try | ||
| { | ||
|
|
||
| if (item.Convention != null) | ||
| { | ||
| if (!conventionTypes.Any(type => type.IsInstanceOfType(item.Convention))) | ||
| { | ||
| context.Logger.LogDebug("Could not execute Convention {TypeName} from {AssemblyName} :: {@Types}", | ||
| item.Convention?.GetType()?.FullName, | ||
| item.Convention?.GetType()?.GetTypeInfo()?.Assembly?.GetName()?.Name, | ||
| enumerable); | ||
| continue; | ||
| } | ||
|
|
||
| context.Logger.LogDebug("Executing Convention {TypeName} from {AssemblyName}", | ||
| item.Convention?.GetType()?.FullName, | ||
| item.Convention?.GetType()?.GetTypeInfo()?.Assembly?.GetName()?.Name); | ||
| Register(item.Convention, context); | ||
| continue; | ||
| } | ||
|
|
||
| // ReSharper disable once UseNullPropagation | ||
| // ReSharper disable once InvertIf | ||
| if (item.Delegate != null) | ||
| { | ||
| if (!delegateTypes.Any(type => type.IsInstanceOfType(item.Delegate))) | ||
| { | ||
| context.Logger.LogDebug("Could not execute Delegate {TypeName} :: {@Types}", | ||
| item.Delegate.GetType()?.FullName, | ||
| enumerable); | ||
| continue; | ||
| } | ||
|
|
||
| context.Logger.LogDebug("Executing Delegate {TypeName}", item.Delegate.GetType()?.FullName); | ||
| item.Delegate.DynamicInvoke(context); | ||
| continue; | ||
| } | ||
|
|
||
| context.Logger.LogError("Convention or Delegate not available for one of the items"); | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| if (item.Convention != null) | ||
| context.Logger.LogError(0, e, "Error invoking Convention {Convention}", item.Convention?.GetType()?.FullName); | ||
| else if (item.Delegate != null) | ||
| context.Logger.LogError(0, e, "Error invoking Delegate at index {Index}", itemWithIndex.index); | ||
| else | ||
| context.Logger.LogError("Unknown error invoking Convention or Delegate at index {Index}", itemWithIndex.index); | ||
| throw; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private readonly ConcurrentDictionary<Type, MethodInfo> _registerMethodCache = new ConcurrentDictionary<Type, MethodInfo>(); | ||
|
|
||
| private static readonly MethodInfo RegisterGenericMethod = | ||
| typeof(ConventionComposerBase).GetTypeInfo().GetDeclaredMethod(nameof(RegisterGeneric)); | ||
|
|
||
| private void Register(IConvention convention, IConventionContext context) | ||
| { | ||
| var interfaces = convention.GetType().GetTypeInfo().ImplementedInterfaces | ||
| .Where(x => x.GetTypeInfo().IsGenericType) | ||
| .Where(x => x.GetTypeInfo().GetGenericTypeDefinition() == typeof(IConvention<>)) | ||
| .Select(x => new { interfaceType = x, contextType = x.GetTypeInfo().GenericTypeArguments[0] }); | ||
|
|
||
| var contextTypes = context.GetType().GetTypeInfo().ImplementedInterfaces | ||
| .Where(x => typeof(IConventionContext).IsAssignableFrom(x)); | ||
|
|
||
| var typesToRegister = interfaces | ||
| .Join(contextTypes, x => x.contextType, x => x, (interfaceType, contextType) => contextType); | ||
|
|
||
| foreach (var item in typesToRegister) | ||
| { | ||
| if (!_registerMethodCache.TryGetValue(item, out var method)) | ||
| { | ||
| method = RegisterGenericMethod.MakeGenericMethod(item); | ||
| _registerMethodCache.TryAdd(item, method); | ||
| } | ||
|
|
||
| method.Invoke(this, new object[] { convention, context }); | ||
| } | ||
| } | ||
|
|
||
| private void RegisterGeneric<T>(IConvention<T> convention, T context) | ||
| where T : IConventionContext | ||
| { | ||
| convention.Register(context); | ||
| } | ||
| } | ||
| } |