net.anyflow.menton.http.WebServerChannelInitializer.java Source code

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Here is the source code for net.anyflow.menton.http.WebServerChannelInitializer.java

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/*
 * Copyright 2016 The Menton 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.menton.http;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpContentCompressor;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import net.anyflow.lannister.Settings;

class WebServerChannelInitializer extends ChannelInitializer<SocketChannel> {

    private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory
            .getLogger(WebServerChannelInitializer.class);

    private final boolean useSsl;
    private final Class<? extends WebsocketFrameHandler> websocketFrameHandlerClass;

    public WebServerChannelInitializer(boolean useSsl,
            Class<? extends WebsocketFrameHandler> websocketFrameHandlerClass) {
        this.useSsl = useSsl;
        this.websocketFrameHandlerClass = websocketFrameHandlerClass;
    }

    @Override
    protected void initChannel(SocketChannel ch) throws Exception {
        if ("true".equalsIgnoreCase(Settings.SELF.getProperty("menton.logging.writelogOfNettyLogger"))) {
            ch.pipeline().addLast("log", new LoggingHandler("menton/server", LogLevel.DEBUG));
        }

        if (useSsl) {
            SslContext sslCtx = SslContextBuilder
                    .forServer(Settings.SELF.certChainFile(), Settings.SELF.privateKeyFile()).build();

            logger.debug("SSL Provider : {}", SslContext.defaultServerProvider());

            ch.pipeline().addLast(sslCtx.newHandler(ch.alloc()));
        }

        ch.pipeline().addLast(HttpServerCodec.class.getName(), new HttpServerCodec());
        ch.pipeline().addLast(HttpObjectAggregator.class.getName(), new HttpObjectAggregator(1048576));
        ch.pipeline().addLast(HttpContentCompressor.class.getName(), new HttpContentCompressor());
        ch.pipeline().addLast(HttpRequestRouter.class.getName(), new HttpRequestRouter());

        if (websocketFrameHandlerClass != null) {
            WebsocketFrameHandler wsfh = websocketFrameHandlerClass.newInstance();

            ch.pipeline().addLast(WebSocketServerProtocolHandler.class.getName(),
                    new WebSocketServerProtocolHandler(wsfh.websocketPath(), wsfh.subprotocols(),
                            wsfh.allowExtensions(), wsfh.maxFrameSize()));

            ch.pipeline().addLast(wsfh);
        }
    }
}