| Re: [kura-dev] CoAP support in Kura through Eclipse Californium |
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Hi Buddhika, I'm posting your issues and questions to the kura_dev list because they may be of interest to others. If you find bugs in Kura or have troubles building it, please file a bug to: https://bugs.eclipse.org/bugs/describecomponents.cgi?product=Kura > I built the project from the information I got from the readme file from Git. It had 189 errors. > Those were in > org.eclipse.kura.example.project > org.eclipse.kura.example.publisher > org.ecliple.kura.example.serial.publisher > org.eclipse.kura.soda.dk.comm > from those, in org.eclipse.kura.soda.dk.comm had some package naming errors. > For example, package org.eclipse.soda.dk.comm was there inside the classes of the > org.eclipse.soda.dk package but it was the name of the project so it gave error. Those errors were > fixed. I assume that building Kura with Maven succeeded and you have problems/errors after importing the projects in Eclipse. Is this correct? Can you describe your environment in detail (OS/Java/Maven/Eclipse versions)? Did you follow the steps described in the project README? Did you need changing something? Try importing the projects in Eclipse as Java projects instead of Maven projects. Does this help? I see you are on Linux. I'm on Linux too so I should be able to help. Also, it's very important that, if you fix a problem, you share the information on how you did it. > Other errors are saying that it cannot resolve the import. I'm working on that. If you have any idea > please tell me. Please try pulling the latest changes from github and see if they fix the issue. > I'm going to run Kura emulator on my PC as you suggested. If you can give me an idea how to begin > it, that would be nice. The first step is to fix the compile errors in the Eclipse workspace. After that you could connect the Kura emulator to some MQTT broker like the one at Eclipse IoT: http://iot.eclipse.org/sandbox.html and learn how to publish and subscribe and the format and encoding (KuraPayload) of the MQTT payload used by Kura. In order to connect to the Eclipse IoT MQTT broker you have to set the broker URL in the MqttDataTransport configuration. Usually you don't need to manually edit the Kura configuration but you use the Kura Web UI to do that. Unfortunately the project is still waiting for IP approval of one of its dependencies. For the time being you can copy the file in {kura_repository}/kura/distrib/src/main/resources/raspberry-pi-nn/snapshot_0.xml to /tmp/kura/snapshots/ (create the directory if it does not exist) and set the Eclipse IoT broker URL in the MqttDataTransport element: <esf:property name="broker-url" array="false" encrypted="false" type="String"> <esf:value>mqtt://iot.eclipse.org:1883/</esf:value> </esf:property> Also set the following DataService configuration property to true (default: false): <esf:property name="connect.auto-on-startup" array="false" encrypted="false" type="Boolean"> <esf:value>true</esf:value> </esf:property> If you start the emulator it should be able to connect to the broker. After connecting to the broker you can install some example project in the framework and familiarize with the Kura CloudService and KuraPayload. > I searched for californium examples and I could find some. So I'm going to run those and get an > idea. Great. There is an CoAP server at Eclipse IoT. Let's keep posting our progress here on the kura_dev ML. Ciao, Cristiano On 22/05/2014 06:43, Buddhika Dilhan
wrote:
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