用于构建读/写包的设计模式

Question

Let me introduce some initial points: I work with program that is connecting via uart (to the special board) and sending data packages to set/get information about devices in the special board' network. Package format looks like:

|Start byte | Device ID | R/W | Parameter| Data | CRC|

So I have several devices and want to generate data packages in the most efficient way. My question: is there any appropriate design pattern to generate packages above? Of course it could be hardcoded, but I try to found more flexible way.

Answer 1

For writing you could use one of the Creational Bulder patterns. Like Simple or Fluent Builder. For reading you could use one of the Behavioural Interpreter patterns, like Interpreter or Parser.

But your task is utmost simple. So, I strongly recommend to create a straightforward class and implement the necessary data structures an read/write methods. This seems to be the more efficient solution.

If your data structure is more complex, you may use one of the above patterns. But also here, reusing an existing protocol is simpler.

Please consider