RawWebSocketSendHandler.java

/*
 * Copyright 2013 The Netty Project
 *
 * The Netty Project licenses this file to you 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.jboss.aerogear.io.netty.handler.codec.sockjs.transport;

import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPromise;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import org.jboss.aerogear.io.netty.handler.codec.sockjs.protocol.Frame;
import org.jboss.aerogear.io.netty.handler.codec.sockjs.protocol.MessageFrame;

import java.util.List;

class RawWebSocketSendHandler extends ChannelHandlerAdapter {

    @Override
    public void write(final ChannelHandlerContext ctx, final Object msg, final ChannelPromise promise)
            throws Exception {
        if (msg instanceof Frame) {
            final Frame sockJSFrame = (Frame) msg;
            if (sockJSFrame instanceof MessageFrame) {
                final MessageFrame messageFrame = (MessageFrame) sockJSFrame;
                final List<String> messages = messageFrame.messages();
                for (String message : messages) {
                    ctx.write(new TextWebSocketFrame(message));
                }
            }
        }
        ctx.flush();
        promise.setSuccess();
    }

}