set baseframe as default type for interim

jetty-websocket/websocket-core/src/main/java/org/eclipse/jetty/websocket/frames/ControlFrameType.java

@@ -1,5 +1,50 @@
+/*
+ * Copyright (c) 2012 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.eclipse.jetty.websocket.frames;
 
-public class ControlFrameType {
+import java.util.HashMap;
+import java.util.Map;
 
+import org.eclipse.jetty.websocket.frames.ControlFrameType;
+
+public enum ControlFrameType 
+{
+	BASE_FRAME((short)1);
+	
+    public static ControlFrameType from(short code)
+    {
+        return Codes.codes.get(code);
+    }
+
+    private final short code;
+
+    private ControlFrameType(short code)
+    {
+        this.code = code;
+        Codes.codes.put(code, this);
+    }
+
+    public short getCode()
+    {
+        return code;
+    }
+
+    private static class Codes
+    {
+        private static final Map<Short, ControlFrameType> codes = new HashMap<>();
+    }
 }