Halia

Halia is a component-based network application framework for rapid development of maintainable high-performance servers and clients.

Reference netty to implementation. Netty

Basic Concept

Handler

Packet handler, There are two handlers: InboundHandler and OutboundHandler. InboundHandler handles inbound data and OutboundHandler handles outbound data.

Decoder

Packet Decoder，An implementation of InboundHandler, reading []byte from connection and parsing it into a message of specific format.

Encoder

Packet Encoder，An implementation of OutboundHandler，encoding message in a specific format as []byte then sending to client

Channel

A connection wrapper，Provides property setter/getter methods. For example, after the user logs in successfully, you need to set the current user’s connection to the logged-in state, you can call the SetAttribute and GetAttribute methods of Channel.

HandlerContext

The Handler is associated with the Channel context object. which is responsible for the chain invocation of the Handler and the conversion of inbound and outbound directions.

Pipeline

Holds inbound and outbound Handler chains, responsible for chained calls of data.