Hey Chris,

I agree and I disagree with you at the same time : )
For specific drivers one should always override the isConnected method (I also 
updated  the Javadoc there).
But I see it a bit pragmatic and conclude that "most" of the drivers are tcp / 
udp based so I decided that this is "okay".

But of course, it is not absolutely clean, so I agree with a "cleaner" 
implementation although I would like to encapsulate it as much as possible to 
have changes locally.
Perhaps a subclass of the NettyConnection for TCP / UDP?

Julian

Am 01.04.19, 10:16 schrieb "Christofer Dutz" <christofer.d...@c-ware.de>:

    The thing is:
    
    If we start implementing the functionality of a "ping" for other protocol 
types such as RawIp, RawEthernet, Can, Serial, do we then start also adding 
"getSocketAddress", getCanIdentifier, getSerialPortId and stuff like that?
    I think that's a pretty unpretty way to do it.
    
    I'll try to whip up a cleaner implementation ...
    
    Chris
    
    
    Am 01.04.19, 10:11 schrieb "Julian Feinauer" <j.feina...@pragmaticminds.de>:
    
        Hi Chris,
        
        this was a decidion I made (and therefore exposed as PR).
        I think this is a good compromise between many protocols being on TCP / 
UDP and the fact that we want to have the "ping" for most drivers.
        In fact, I intentionally implemented it as an Optional and stated in 
the JDoc that a non TCP / UDP Driver should return Optional.empty().
        
        Do you agree with that?
        Otherwise, we can of course plan to implement it differently but then 
it gets more and more tedious and perhaps we are missing something in driver 
implementations.
        
        Julian
        
        Am 01.04.19, 10:06 schrieb "Christofer Dutz" 
<christofer.d...@c-ware.de>:
        
            Hi all,
            
            today I simply have a little time to inspect the latest changes as 
I was travelling for 5 days …
            I do have a few questions:
            
            Why is AbstractPlcConnection been extended by a 
getInetSocketAddress method?
            
            PlcConnections are not bound exclusively to TCP/UDP … we currently 
already have Serial port based connections and when going into protocols like 
Profinet and EtherCat in the future we’ll be going down to IP or even Ethernet 
level.
            I don’t like TCP/UDP details in the base abstract class for all 
drivers.
            
            … continuing to evaluate …
            
            Chris
            
        
        
    
    

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