1 files changed, 72 insertions, 0 deletions
diff --git a/Crypto/src/util/Enums.cs b/Crypto/src/util/Enums.cs
new file mode 100644
index 000000000..abab5266b
--- /dev/null
+++ b/Crypto/src/util/Enums.cs
@@ -0,0 +1,72 @@
+using System;
+using System.Text;
+
+#if NETCF_1_0 || NETCF_2_0 || SILVERLIGHT || PORTABLE
+using System.Collections;
+using System.Reflection;
+#endif
+
+using Org.BouncyCastle.Utilities.Date;
+
+namespace Org.BouncyCastle.Utilities
+{
+ internal sealed class Enums
+ {
+ private Enums()
+ {
+ }
+
+ internal static Enum GetEnumValue(System.Type enumType, string s)
+ {
+ if (!enumType.IsEnum)
+ throw new ArgumentException("Not an enumeration type", "enumType");
+
+ // We only want to parse single named constants
+ if (s.Length > 0 && char.IsLetter(s[0]) && s.IndexOf(',') < 0)
+ {
+ s = s.Replace('-', '_');
+
+#if NETCF_1_0
+ FieldInfo field = enumType.GetField(s, BindingFlags.Static | BindingFlags.Public);
+ if (field != null)
+ {
+ return (Enum)field.GetValue(null);
+ }
+#else
+ return (Enum)Enum.Parse(enumType, s, false);
+#endif
+ }
+
+ throw new ArgumentException();
+ }
+
+ internal static Array GetEnumValues(System.Type enumType)
+ {
+ if (!enumType.IsEnum)
+ throw new ArgumentException("Not an enumeration type", "enumType");
+
+#if NETCF_1_0 || NETCF_2_0 || SILVERLIGHT || PORTABLE
+ IList result = Platform.CreateArrayList();
+ FieldInfo[] fields = enumType.GetFields(BindingFlags.Static | BindingFlags.Public);
+ foreach (FieldInfo field in fields)
+ {
+ // Note: Argument to GetValue() ignored since the fields are static,
+ // but Silverlight for Windows Phone throws exception if we pass null
+ result.Add(field.GetValue(enumType));
+ }
+ object[] arr = new object[result.Count];
+ result.CopyTo(arr, 0);
+ return arr;
+#else
+ return Enum.GetValues(enumType);
+#endif
+ }
+
+ internal static Enum GetArbitraryValue(System.Type enumType)
+ {
+ Array values = GetEnumValues(enumType);
+ int pos = (int)(DateTimeUtilities.CurrentUnixMs() & int.MaxValue) % values.Length;
+ return (Enum)values.GetValue(pos);
+ }
+ }
+}
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