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//-----------------------------------------------------------------------
// <copyright file="HostNameOrRegexCollection.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.Configuration {
using System.Collections.Generic;
using System.Configuration;
using System.Text.RegularExpressions;
using Validation;
/// <summary>
/// Represents a collection of child elements that describe host names either as literal host names or regex patterns.
/// </summary>
internal class HostNameOrRegexCollection : ConfigurationElementCollection {
/// <summary>
/// Initializes a new instance of the <see cref="HostNameOrRegexCollection"/> class.
/// </summary>
public HostNameOrRegexCollection() {
}
/// <summary>
/// Gets all the members of the collection assuming they are all literal host names.
/// </summary>
internal IEnumerable<string> KeysAsStrings {
get {
foreach (HostNameElement element in this) {
yield return element.Name;
}
}
}
/// <summary>
/// Gets all the members of the collection assuming they are all host names regex patterns.
/// </summary>
internal IEnumerable<Regex> KeysAsRegexs {
get {
foreach (HostNameElement element in this) {
if (element.Name != null) {
yield return new Regex(element.Name);
}
}
}
}
/// <summary>
/// Creates a new child host name element.
/// </summary>
/// <returns>
/// A new <see cref="T:System.Configuration.ConfigurationElement"/>.
/// </returns>
protected override ConfigurationElement CreateNewElement() {
return new HostNameElement();
}
/// <summary>
/// Gets the element key for a specified configuration element.
/// </summary>
/// <param name="element">The <see cref="T:System.Configuration.ConfigurationElement"/> to return the key for.</param>
/// <returns>
/// An <see cref="T:System.Object"/> that acts as the key for the specified <see cref="T:System.Configuration.ConfigurationElement"/>.
/// </returns>
protected override object GetElementKey(ConfigurationElement element) {
Requires.NotNull(element, "element");
return ((HostNameElement)element).Name ?? string.Empty;
}
}
}
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