Initial Commit

iTechSharp/srcbc/util/collections/CollectionUtilities.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections;
+using System.Text;
+
+namespace Org.BouncyCastle.Utilities.Collections
+{
+	public sealed class CollectionUtilities
+	{
+		private CollectionUtilities()
+		{
+		}
+
+		public static bool CheckElementsAreOfType(
+			IEnumerable e,
+			Type		t)
+		{
+			foreach (object o in e)
+			{
+				if (!t.IsInstanceOfType(o))
+					return false;
+			}
+			return true;
+		}
+
+		public static string ToString(
+			IEnumerable c)
+		{
+			StringBuilder sb = new StringBuilder("[");
+
+			IEnumerator e = c.GetEnumerator();
+
+			if (e.MoveNext())
+			{
+				sb.Append(e.Current.ToString());
+
+				while (e.MoveNext())
+				{
+					sb.Append(", ");
+					sb.Append(e.Current.ToString());
+				}
+			}
+
+			sb.Append(']');
+
+			return sb.ToString();
+		}
+	}
+}