/*
 * Copyright 2011 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.netty.example.securechat;

import java.util.logging.Level;
import java.util.logging.Logger;

import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.ExceptionEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.jboss.netty.handler.ssl.SslHandler;

/**
 * Handles a client-side channel.
 */
public class SecureChatClientHandler extends SimpleChannelUpstreamHandler {

    private static final Logger logger = Logger.getLogger(
            SecureChatClientHandler.class.getName());

    @Override
    public void handleUpstream(
            ChannelHandlerContext ctx, ChannelEvent e) throws Exception {
        if (e instanceof ChannelStateEvent) {
            logger.info(e.toString());
        }
        super.handleUpstream(ctx, e);
    }

    @Override
    public void channelConnected(
            ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
        // Get the SslHandler from the pipeline
        // which were added in SecureChatPipelineFactory.
        SslHandler sslHandler = ctx.getPipeline().get(SslHandler.class);

        // Begin handshake.
        sslHandler.handshake();
    }

    @Override
    public void messageReceived(
            ChannelHandlerContext ctx, MessageEvent e) {
        System.err.println(e.getMessage());
    }

    @Override
    public void exceptionCaught(
            ChannelHandlerContext ctx, ExceptionEvent e) {
        logger.log(
                Level.WARNING,
                "Unexpected exception from downstream.",
                e.getCause());
        e.getChannel().close();
    }
}