Some questions about developing new protocols

[rooterWzs]

I encountered three issues during the development process and need your help to provide some ideas.

Question 1:
I have completed the writing of the omron fins.mspec file and generated the corresponding code. I used the "new DefaultPlcDriversManager().getConnection("omron- fins://[192.168.31.220:9600")" Debugging,I found that OmronFinsDriver does not exist in driverMap. How can I inject it into 'driverMap'?
I have attached the omron-fins.mspec file
On line 27 of my mspc file, calculate the length. Can you help me confirm, Can this calculate the length of the FinsMessage?

Question 2:
If the problem is solved, do you have any good suggestions on how to conduct testing and development? What I can currently think of is to refer to the implementation of other protocols, similar to S7.

omron-fins-mspec.zip

Question 3:
How can I ask developers for help? Previously attempted to [[email protected]] I sent an email but didn't receive a response. I don't know where the problem lies?
The email screenshot is as follows:

Finally, thank you for your valuable time.

[ottlukas]

Hi @rooterWzs ,

Welcome to the PLC4X community. :-)

To answer your question 3: Did you subscribe to the mailing list as well?
https://plc4x.apache.org/plc4x/latest/developers/index.html

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Greetings,
otluk

[rooterWzs]

ok , i try it.
thanks.

[chrisdutz]

For problem 1 multiple things need to happen for your driver to show up.

1. You need to have a resource file in (I think) META-INF/services that lists your driver class
2. The driver class needs to implement the Drivers interface
3. You need to have your driver on the applications classpath (add a dependency to it)

Regarding question 2 I usually make a capture of a working solution using the protocol and then use @sruehl s tool to convert that into a parser-serializer test xml and firstly make sure that passes.

Then I take the snippets of this parser serializer test and build a driver test xml (IT - Integration test) and start implementing the driver logic. In parallel I create a manual test, that runs the driver at some real hardware that I've setup with dedicated test data (so I can compare my test results with expected values).

Just have a look at some of the existing stuff for other protocols.
However... The tests are in the driver implementation modules, the test xml are in the protocol modules, as they are multi-language.

Hope that helps

[rooterWzs]

Thank you, I'll give it a try.
I have added files in the META-INF/services directory and have resolved this issue.