Java SDK is not connecting to local host

[rkandasamy]

Hi Team,

I have got the java SDK from thingworx market place and i am trying to connect a sample thing. But the thing is not connecting and i am getting the log results as follows,

Please have a look at the logs attached and let me know solution to get my sample thing connected to Thingworx remote thing. Thanks.

[supandey]

Hi Rdhakrishnan, is this complete log? Have you created the corresponding RemoteThing in the ThingWorx platform? Do you see your Thing (initated from the JavaSDK) as unbound if you check on the Platform > Monitoring > Remote Things

[supandey]

Just to add to that,  your RemoteThing in ThingWorx platform should match to your thing created in Java SDK, which i think is called as "SteamSensorGateway"

[rkandasamy]

Hi Sushant Pandey,

Thanks for your prompt response. SteamSensorGateway is SDKGateWay type. Actual Thing is VendingMachine1.

I am also wondering why the connection is not established between remote things. In addition to what ever the logs i have attached, below lines are keep on repeating,

20:59:45.104 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 1198168038] PONG has been received

21:00:20.103 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 651137855] Client has been idle, sending websocket ping with timeout 10000 ...

21:00:20.103 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=9 length=0

21:00:20.104 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=10

21:00:20.104 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=0

21:00:30.106 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 216683491] PONG has been received

21:01:05.105 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 651137855] Client has been idle, sending websocket ping with timeout 10000 ...

21:01:05.105 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=9 length=0

21:01:05.105 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=10

21:01:05.106 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=0

21:01:15.106 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 1507608264] PONG has been received

21:01:50.107 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 651137855] Client has been idle, sending websocket ping with timeout 10000 ...

21:01:50.107 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameEncoder - Encoding WebSocket Frame opCode=9 length=0

21:01:50.108 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame opCode=10

21:01:50.108 [NettyClient-NIO-1] DEBUG i.n.h.c.h.w.WebSocket08FrameDecoder - Decoding WebSocket Frame length=0

21:02:00.107 [NettyClient-NIO-1] DEBUG c.t.c.c.c.n.ThingworxClientConnectionHandler - [ClientHandler: 845641462] PONG has been received

I am not able to come to any reason for the same.

[supandey]

This appears to be regular chatter on the websocket could you please check the Monitoring >Remote Things on the platform? Is your thing named exactly the same i.e. VendingMachine1 on the platform?

[rkandasamy]

Yes, in Monitoring -> Remote Things -> shows VendingMachine1 on the platform.

[supandey]

I may have misunderstood your question, but from above description you have connection to your Thing, have you created a Thing with same name in thr platform? If yes you could check the property isConnected for that thing whether its True/False, you can also confirm with the lastConnected property for that thing.

Or am i missing something?

[rkandasamy]

Yes, For me the thing is not getting not connected. I could not find out from the logs also.

[supandey]

Can you please paste the screenshot of Properties screen from the VendingMachine1 Thing from the platform? As you have mentioned you do see the incoming connection in Monitoring > Remote Thing, this would mean you do have a connection.

[rkandasamy · Accepted solution]

Hi Sushant,

Thanks for your prompt replies.

I could get my current java SDK connecting to Thingworx. The reason was that the identifier mentioned in the SDK code was not added in the Thingworx server side remote thing.

[supandey]

Glad it worked out!

[nbansal]

Hello Rdhakrishnan Kandasamy, Please mark this answer of yours as correct, so that it is helpful for others! Thanks.