public override void ExceptionCaught(IChannelHandlerContext ctx, Exception cause)
{
NettyChannel channel = NettyChannel.GetOrAddChannel(ctx.Channel, _url, _handler);
try
{
_handler.CaughtAsync(channel, cause);
}
finally
{
NettyChannel.RemoveChannelIfDisconnected(ctx.Channel);
}
}
public override async Task DisconnectAsync(IChannelHandlerContext ctx)
{
NettyChannel channel = NettyChannel.GetOrAddChannel(ctx.Channel, _url, _handler);
try
{
await _handler.DisconnectAsync(channel);
}
finally
{
NettyChannel.RemoveChannelIfDisconnected(ctx.Channel);
}
}
public static NettyChannel GetOrAddChannel(DotNetty.Transport.Channels.IChannel ch, URL url, IChannelHandler handler)
{
if (ch == null)
{
return(null);
}
if (!ChannelMap.ContainsKey(ch))
{
var nettyChannel = new NettyChannel(ch, url, handler);
ChannelMap.TryAdd(ch, nettyChannel);
}
return(ChannelMap[ch]);
}
public override async Task WriteAsync(IChannelHandlerContext ctx, object msg)
{
await base.WriteAsync(ctx, msg);
NettyChannel channel = NettyChannel.GetOrAddChannel(ctx.Channel, _url, _handler);
try
{
await _handler.SentAsync(channel, msg);
}
finally
{
NettyChannel.RemoveChannelIfDisconnected(ctx.Channel);
}
}
public override void ChannelRead(IChannelHandlerContext ctx, object msg)
{
NettyChannel channel = NettyChannel.GetOrAddChannel(ctx.Channel, _url, _handler);
try
{
//Console.WriteLine("channel read:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
_handler.RecivedAsync(channel, msg).Wait();
// Console.WriteLine("channel read completed:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
}
finally
{
NettyChannel.RemoveChannelIfDisconnected(ctx.Channel);
}
}
protected override void Encode(IChannelHandlerContext context, object message, IByteBuffer output)
{
DotNetty.Transport.Channels.IChannel ch = context.Channel;
NettyChannel channel = NettyChannel.GetOrAddChannel(ch, _url, _handler);
try
{
//Console.WriteLine("encode:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
_codec.Encode(channel, output, message);
//Console.WriteLine("encoded:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
}
finally
{
NettyChannel.RemoveChannelIfDisconnected(ch);
}
}
protected override void Decode(IChannelHandlerContext context, IByteBuffer input, List <object> output)
{
NettyChannel channel = NettyChannel.GetOrAddChannel(context.Channel, _url, _handler);
Object msg;
int saveReaderIndex;
try
{
// decode object.
do
{
saveReaderIndex = input.ReaderIndex;
try
{
//Console.WriteLine("decode:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
msg = _codec.Decode(channel, input);
//Console.WriteLine("decoded:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
}
catch (IOException e)
{
throw e;
}
if (msg is DecodeResult result && result == DecodeResult.NeedMoreInput)
{
input.SetReaderIndex(saveReaderIndex);
break;
}
else
{
//is it possible to go here ?
if (saveReaderIndex == input.ReaderIndex)
{
throw new IOException("Decode without read data.");
}
if (msg != null)
{
output.Add(msg);
}
}
} while (input.IsReadable());
}