// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Collections.Generic;
using System.ComponentModel.Composition.Primitives;
 
namespace System.ComponentModel.Composition.ReflectionModel
{
    internal abstract class ReflectionImportDefinition : ContractBasedImportDefinition, ICompositionElement
    {
        private readonly ICompositionElement? _origin;
 
        public ReflectionImportDefinition(
            string contractName,
            string? requiredTypeIdentity,
            IEnumerable<KeyValuePair<string, Type>>? requiredMetadata,
            ImportCardinality cardinality,
            bool isRecomposable,
            bool isPrerequisite,
            CreationPolicy requiredCreationPolicy,
            IDictionary<string, object?> metadata,
            ICompositionElement? origin)
            : base(contractName, requiredTypeIdentity, requiredMetadata, cardinality, isRecomposable, isPrerequisite, requiredCreationPolicy, metadata)
        {
            _origin = origin;
        }
 
        string ICompositionElement.DisplayName
        {
            get { return GetDisplayName(); }
        }
 
        ICompositionElement? ICompositionElement.Origin
        {
            get { return _origin; }
        }
 
        public abstract ImportingItem ToImportingItem();
 
        protected abstract string GetDisplayName();
    }
}