//------------------------------------------------------------------------------
// <copyright file="MemoryCacheSettingsSettingsCollection.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>
//------------------------------------------------------------------------------

namespace System.Runtime.Caching.Configuration {
    using System;
    using System.Configuration;
    using System.Collections.Specialized;
    using System.Collections;
    using System.Globalization;
    using System.IO;
    using System.Text;
    using System.Security.Permissions;

    [ConfigurationCollection(typeof(MemoryCacheElement),
    CollectionType = ConfigurationElementCollectionType.AddRemoveClearMap)]
    public sealed class MemoryCacheSettingsCollection : ConfigurationElementCollection {
        private static ConfigurationPropertyCollection _properties;

        static MemoryCacheSettingsCollection() {
            // Property initialization
            _properties = new ConfigurationPropertyCollection();
        }

        protected override ConfigurationPropertyCollection Properties {
            get {
                return _properties;
            }
        }

        public MemoryCacheSettingsCollection() {
        }

        public MemoryCacheElement this[int index] {
            get { return (MemoryCacheElement)base.BaseGet(index); }
            set {
                if (base.BaseGet(index) != null) {
                    base.BaseRemoveAt(index);
                }
                base.BaseAdd(index, value);
            }
        }

        public new MemoryCacheElement this[string key] {
            get {
                return (MemoryCacheElement)BaseGet(key);
            }
        }

        public override ConfigurationElementCollectionType CollectionType {
            get {
                return ConfigurationElementCollectionType.AddRemoveClearMapAlternate;
            }
        }

        public int IndexOf(MemoryCacheElement cache) {
            return BaseIndexOf(cache);
        }

        public void Add(MemoryCacheElement cache) {
            BaseAdd(cache);
        }

        public void Remove(MemoryCacheElement cache) {
            BaseRemove(cache.Name);
        }

        public void RemoveAt(int index) {
            BaseRemoveAt(index);
        }

        public void Clear() {
            BaseClear();
        }

        protected override ConfigurationElement CreateNewElement() {
            return new MemoryCacheElement();
        }

        protected override ConfigurationElement CreateNewElement(string elementName) {
            return new MemoryCacheElement(elementName);
        }

        protected override object GetElementKey(ConfigurationElement element) {
            return ((MemoryCacheElement)element).Name;
        }

    }
}