com.mobius.software.android.iotbroker.mqtt.net.ExceptionHandler.java Source code

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Here is the source code for com.mobius.software.android.iotbroker.mqtt.net.ExceptionHandler.java

Source

package com.mobius.software.android.iotbroker.mqtt.net;

/**
 * Mobius Software LTD
 * Copyright 2015-2016, Mobius Software LTD
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import io.netty.channel.ChannelDuplexHandler;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelPromise;

import java.net.SocketAddress;

import android.util.Log;

import com.mobius.software.android.iotbroker.mqtt.listeners.ConnectionListener;

@Sharable
public class ExceptionHandler extends ChannelDuplexHandler {
    private static final String separator = ",";

    private ConnectionListener listener;

    public ExceptionHandler(ConnectionListener listener) {
        this.listener = listener;
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        SocketAddress address = ctx.channel().remoteAddress();
        if (ctx.channel().isOpen())
            ctx.channel().close();

        StringBuilder sb = new StringBuilder();
        sb.append(address).append(separator);
        sb.append(cause.getClass().getName().substring(cause.getClass().getName().lastIndexOf(".") + 1))
                .append(separator);
        sb.append(cause.getMessage().substring(cause.getMessage().lastIndexOf(".") + 1));
        Log.d("", sb.toString());
    }

    @Override
    public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress,
            ChannelPromise promise) {
        ctx.connect(remoteAddress, localAddress, promise.addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) {
                if (!future.isSuccess())
                    Log.d("", "an error occured while connect");
            }
        }));
    }

    @Override
    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) {
        ctx.write(msg, promise.addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) {
                if (!future.isSuccess()) {
                    Log.d("", "an error occured while write");

                    if (listener != null)
                        listener.writeError();
                }
            }
        }));
    }
}