Merge pull request #28 from informatik-ag-ngl/f/maximum_name_size

Added a method to get the maximum size allowed for user/ group names

src/main/java/envoy/util/Bounds.java

@@ -29,4 +29,12 @@ public class Bounds {
 	 * @since Envoy Common v0.1-beta
 	 */
 	public static boolean isValidContactName(String contactName) { return CONTACT_NAME_PATTERN.matcher(contactName).matches(); }
+
+	/**
+	 * @return the maximum size allowed for a user/ group name.
+	 * @apiNote has to be updated manually if {@link Bounds#CONTACT_NAME_PATTERN}
+	 *          gets updated.
+	 * @since Envoy Common v0.1-beta
+	 */
+	public static int maximumUsernameSize() { return 16; }
 }