55 lines
1.7 KiB
C#
55 lines
1.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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namespace Csla.Security
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{
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/// <summary>
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/// Maintains a list of all the per-type
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/// <see cref="AuthorizationRulesManager"/> objects
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/// loaded in memory.
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/// </summary>
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internal static class SharedAuthorizationRules
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{
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private static Dictionary<Type, AuthorizationRulesManager> _managers =
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new Dictionary<Type, AuthorizationRulesManager>();
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/// <summary>
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/// Gets the <see cref="AuthorizationRulesManager"/> for the
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/// specified object type, optionally creating a new instance
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/// of the object if necessary.
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/// </summary>
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/// <param name="objectType">
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/// Type of business object for which the rules apply.
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/// </param>
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/// <param name="create">Indicates whether to create
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/// a new instance of the object if one doesn't exist.</param>
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internal static AuthorizationRulesManager GetManager(Type objectType, bool create)
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{
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AuthorizationRulesManager result = null;
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if (!_managers.TryGetValue(objectType, out result) && create)
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{
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lock (_managers)
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{
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result = new AuthorizationRulesManager();
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_managers.Add(objectType, result);
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}
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}
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return result;
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}
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/// <summary>
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/// Gets a value indicating whether a set of rules
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/// have been created for a given <see cref="Type" />.
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/// </summary>
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/// <param name="objectType">
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/// Type of business object for which the rules apply.
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/// </param>
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/// <returns><see langword="true" /> if rules exist for the type.</returns>
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public static bool RulesExistFor(Type objectType)
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{
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return _managers.ContainsKey(objectType);
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}
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}
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} |