/*
    * Copyright 2016 The Lannister Project
    * 
    * 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 net.anyflow.lannister.http;
  
  import java.util.List;
  
  import io.netty.channel.ChannelHandlerContext;
  import io.netty.handler.codec.MessageToMessageDecoder;
  import io.netty.handler.codec.http.websocketx.WebSocketFrame;
  
  public abstract class WebsocketFrameHandler extends MessageToMessageDecoder<WebSocketFrame> {
  	public static final List<String> DEFAULT_SUBPROTOCOLS = null;
  	public static final boolean ALLOW_EXTENSIONS = false;
  	public static final int MAX_FRAME_SIZE = 65536;
  
  	public abstract String subprotocols();
  
  	public abstract String websocketPath();
  
  	public abstract boolean allowExtensions();
  
  	public abstract int maxFrameSize();
  
  	public abstract void websocketFrameReceived(ChannelHandlerContext ctx, WebSocketFrame wsframe);
  
  	@Override
  	protected void decode(ChannelHandlerContext ctx, WebSocketFrame msg, List<Object> out) throws Exception {
  		websocketFrameReceived(ctx, msg);
  	}
  }