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/*
 * Copyright 2012 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.glowroot.shaded.netty.example.securechat;

import org.glowroot.shaded.netty.channel.ChannelInitializer;
import org.glowroot.shaded.netty.channel.ChannelPipeline;
import org.glowroot.shaded.netty.channel.socket.SocketChannel;
import org.glowroot.shaded.netty.handler.codec.DelimiterBasedFrameDecoder;
import org.glowroot.shaded.netty.handler.codec.Delimiters;
import org.glowroot.shaded.netty.handler.codec.string.StringDecoder;
import org.glowroot.shaded.netty.handler.codec.string.StringEncoder;
import org.glowroot.shaded.netty.handler.ssl.SslContext;

/**
 * Creates a newly configured {@link ChannelPipeline} for a new channel.
 */
public class SecureChatClientInitializer extends ChannelInitializer {

    private final SslContext sslCtx;

    public SecureChatClientInitializer(SslContext sslCtx) {
        this.sslCtx = sslCtx;
    }

    @Override
    public void initChannel(SocketChannel ch) throws Exception {
        ChannelPipeline pipeline = ch.pipeline();

        // Add SSL handler first to encrypt and decrypt everything.
        // In this example, we use a bogus certificate in the server side
        // and accept any invalid certificates in the client side.
        // You will need something more complicated to identify both
        // and server in the real world.
        pipeline.addLast(sslCtx.newHandler(ch.alloc(), SecureChatClient.HOST, SecureChatClient.PORT));

        // On top of the SSL handler, add the text line codec.
        pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
        pipeline.addLast(new StringDecoder());
        pipeline.addLast(new StringEncoder());

        // and then business logic.
        pipeline.addLast(new SecureChatClientHandler());
    }
}