//
// SecurityKeyIdentifier.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2005-2007 Novell, Inc. http://www.novell.com
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.IdentityModel.Policy;
namespace System.IdentityModel.Tokens{
public class SecurityKeyIdentifier
: IEnumerable<SecurityKeyIdentifierClause>, IEnumerable
{
public SecurityKeyIdentifier ()
{
this.list = new List<SecurityKeyIdentifierClause> ();
}
public SecurityKeyIdentifier (params SecurityKeyIdentifierClause [] identifiers)
{
this.list = new List<SecurityKeyIdentifierClause> (identifiers);
}
List<SecurityKeyIdentifierClause> list;
bool is_readonly;
public bool CanCreateKey {
get {
foreach (SecurityKeyIdentifierClause kic in this)
if (kic.CanCreateKey)
return true;
return false;
}
}
public int Count {
get { return list.Count; }
}
public bool IsReadOnly {
get { return is_readonly; }
}
public SecurityKeyIdentifierClause this [int i] {
get { return list [i]; }
}
public void Add (SecurityKeyIdentifierClause item)
{
if (is_readonly)
throw new InvalidOperationException ("This SecurityKeyIdentifier is read-only.");
list.Add (item);
}
public SecurityKey CreateKey ()
{
foreach (SecurityKeyIdentifierClause kic in this)
if (kic.CanCreateKey)
return kic.CreateKey ();
throw new ArgumentException ("This key identifier cannot create a key");
}
public TClause Find<TClause> ()
where TClause : SecurityKeyIdentifierClause
{
TClause kic;
if (!TryFind<TClause> (out kic))
throw new ArgumentException (String.Format ("{0} was not found in this SecurityKeyIdentifier", typeof (TClause)));
return kic;
}
IEnumerator IEnumerable.GetEnumerator ()
{
return GetEnumerator ();
}
public IEnumerator<SecurityKeyIdentifierClause> GetEnumerator ()
{
return list.GetEnumerator ();
}
public void MakeReadOnly ()
{
is_readonly = true;
}
public override string ToString ()
{
if (Count == 0)
return "(no key identifier clause)";
StringBuilder sb = new StringBuilder ();
sb.AppendFormat ("Total keys: {0}, ", Count);
foreach (SecurityKeyIdentifierClause kic in this)
sb.Append ('{').Append (kic.ToString ()).Append ('}');
return sb.ToString ();
}
public bool TryFind<TClause> (out TClause result)
where TClause : SecurityKeyIdentifierClause
{
result = default (TClause);
foreach (SecurityKeyIdentifierClause kic in this)
if (typeof (TClause).IsAssignableFrom (kic.GetType ())) {
result = (TClause) kic;
return true;
}
return false;
}
}
}
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