EvaluationContext.cs :  » 2.6.4-mono-.net-core » System.IdentityModel » System » IdentityModel » Policy » C# / CSharp Open Source

//
// EvaluationContext.cs
//
// Author:
//  Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2005 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.Collections.ObjectModel;
using System.IdentityModel.Claims;

namespace System.IdentityModel.Policy{
  public abstract class EvaluationContext
  {
    protected EvaluationContext ()
    {
    }

    public abstract int Generation { get; }

    public abstract IDictionary<string,object> Properties { get; }

    public abstract ReadOnlyCollection<ClaimSet> ClaimSets { get; }

    public abstract void AddClaimSet (
      IAuthorizationPolicy authorizationPolicy,
      ClaimSet claimSet);

    public abstract void RecordExpirationTime (DateTime time);
  }

  // default implementation

  internal class DefaultEvaluationContext : EvaluationContext
  {
    DateTime expiration_time = DateTime.MaxValue.AddDays (-1);
    int generation;
    Collection<ClaimSet> claim_sets;
    ReadOnlyCollection<ClaimSet> exposed_claim_sets;
    Dictionary<string,object> properties =
      new Dictionary<string,object> ();
    Dictionary<IAuthorizationPolicy,ClaimSet> claim_set_map =
      new Dictionary<IAuthorizationPolicy,ClaimSet> ();

    public DefaultEvaluationContext ()
    {
      claim_sets = new Collection<ClaimSet> ();
      exposed_claim_sets =
        new ReadOnlyCollection<ClaimSet> (claim_sets);
    }

    public override int Generation {
      get { return generation; }
    }

    public override IDictionary<string,object> Properties {
      get { return properties; }
    }

    public override ReadOnlyCollection<ClaimSet> ClaimSets {
      get { return exposed_claim_sets; }
    }

    public override void AddClaimSet (
      IAuthorizationPolicy authorizationPolicy,
      ClaimSet claimSet)
    {
      generation++;
      claim_set_map.Add (authorizationPolicy, claimSet);
      claim_sets.Add (claimSet);
    }

    public override void RecordExpirationTime (DateTime time)
    {
      expiration_time = time;
    }

    internal DateTime ExpirationTime {
      get { return expiration_time; }
    }
  }

}