[kepler-users] How to run EcogridWriter from eclipse?

Wed Mar 7 12:27:00 PST 2012

Yes, if your actor requires jars, the best approach is to publish it as a module, much like the DataTurbine actor module. Please take a look at the DataTurbine actor's directory layout and files, and read through the documentation about publishing a module or suite:
https://kepler-project.org/developers/teams/build/documentation/build-system-instructions

The build instructions also have some details about modules:
https://kepler-project.org/developers/teams/build/documentation/build-system-instructions#making-your-own-modules

If you go through the release process to publish/upload an actor module such as this to an SVN repository, other users can change to your suite and use it if they have configured Kepler to look in this SVN repository. By default the Kepler Module Manager is configured to look for modules in the kepler SVN. Which SVN used is controlled by the value in this file: kepler.modules/module-manager/resources/configurations/configuration.xml

Simpler actors that don't require a jar, e.g. a customized RExpression, Matlab, or Python actor, can be uploaded to the Kepler repository (and thus very easily and quickly shared with any Kepler user running the 'standard' kepler suite) by right-clicking on the actor in Kepler and selecting Upload to Repository. Other users then search the Kepler Components tab to select, download, and use it.

By the way, be sure to check the jars you require don't already exist in kepler. E.g. you can use "Open Resource" in eclipse to quickly search for things like *axis*jar.

Derik

On Mar 7, 2012, at 11:27 AM, jing wrote:

> Hi, Bina:
> 
> I am not an expert on this. I think you customer actor should be in a new suite. Then you have to publish the new suite. Then users can download it by the module/suite manager. Is this correct, Derik?
> 
> Thanks,
> 
> Jing
> 
> On 03/07/2012 10:35 AM, Bina Philip wrote:
>> Hi Jing,
>> 
>> Can you give me some reference for this?
>> 
>> Yes, the user needs to add the jar files which contains the custom actor class and other needed classes to his kepler. We use the module and suite management system to handle this case. 
>> 
>> The actor I will trying to code for has a bunch of jars (axis2 jars) so if any other user needs to use this custom actor they would have to someway import all these jars into the Kepler workspace? Is this understanding correct? 
>> 
>> Will they need to check out the kepler source code for this and recompile it after combining with it, the code for my custom actor by any chance? Kindly let me know.
>> 
>> Best
>> 
>> On Wed, Mar 7, 2012 at 1:29 PM, jing <tao at nceas.ucsb.edu> wrote:
>> Bina:
>> 
>> You still can add some check-points even though you run a workflow which contains the EcogridWriter actor in a kepler GUI that is started from the Eclipse.
>> 
>> Yes, the user needs to add the jar files which contains the custom actor class and other needed classes to his kepler. We use the module and suite management system to handle this case. 
>> 
>> Regards,
>> 
>> Jing
>> 
>> 
>> On 03/07/2012 10:16 AM, Bina Philip wrote:
>>> Hi Jing,
>>> 
>>> I just wanted to try and see the progress of the program by putting some check-points in eclipse. I was thinking it would be similar to running the HelloWorld actor from Eclipse like mentioned in the link for coding the HelloWorld actor. 
>>> 
>>> I want to see how this EcogridWriter actor is behaving according to its code and I am trying to see if I can find something that I can use from the way Ecogrid actor is coded. 
>>> 
>>> The reason why I want to see this is because after I code for my custom actor in Eclipse I want to know how I can run this custom actor and use it in Kepler (will this be similar to the HelloWorld actor example?). 
>>> 
>>> Another question linked to this is going to be, how another user who does not have the code for my actor will be able to use my custom actor? Does that user need to add any jar or get the source code for that custom actor to be able to use it in his version of Kepler?
>>> 
>>> Best 
>>> 
>>> 
>>> On Wed, Mar 7, 2012 at 12:57 PM, jing <tao at nceas.ucsb.edu> wrote:
>>> Hi, Bina:
>>> 
>>> I never ran an actor from the main class in Eclipse. The EcogridWriter class doesn't have a main method at all, so it is impossible to run it in this way. Is there any special reason you want to do this way?
>>> 
>>> Regards,
>>> 
>>> Jing
>>> 
>>> 
>>> On 03/07/2012 09:31 AM, Bina Philip wrote:
>>>> Hi Jing,
>>>> 
>>>> I followed all the steps mentioned in the link and tried the HelloWorld program (actor) using eclipse referring to the following link. https://kepler-project.org/developers/teams/build/documentation/developing-a-hello-world-actor-using-the-kepler-build-system-and-eclipse.
>>>> Once I program this HelloWorld and run this from Eclipse Kepler starts up and then I go to Instantiate Component and follow those instructions and this actor runs successfully.
>>>> 
>>>> What I am trying to do now is run the EcogridWriter Actor from Eclipse (as opposed to opening kepler directly and using the component) and when I run this EcogridWriter actor from Eclipse I get an exception that says main class cannot be found. I am attaching a couple screen shots for your reference. The first screen shot shows the what I am trying to do in Eclipse, and in the next screen shot the error that comes up on the console. 
>>>> 
>>>> Best
>>>> 
>>>> 
>>>> On Wed, Mar 7, 2012 at 12:12 PM, jing <tao at nceas.ucsb.edu> wrote:
>>>> Hi, Bina:
>>>> 
>>>> May you start up Kepler on Eclipse? If you can't, please see the instruction at:
>>>> https://kepler-project.org/developers/reference/kepler-and-eclipse/?searchterm=eclipse
>>>> 
>>>> If you can start the Kepler, you may search "EcogridWriter" on the Component Search panel (the left side of the kepler windows). Then you may drag the actor from the search result panel to the canvas. The actor will be instantiate during the dragging.
>>>> 
>>>> Hope this is helpful.
>>>> 
>>>> Regards,
>>>> 
>>>> Jing
>>>> 
>>>> 
>>>> 
>>>> On 03/07/2012 06:18 AM, Bina Philip wrote:
>>>>> Hello,
>>>>> 
>>>>> I have the code base checked out from the kepler trunk and I have set this up in eclipse. I wanted to know how I can run this particular actor of EcogridWriter and instantiate it in Kepler (like the example process of HelloWorld). Right now I receive an error that says Main class not found in                                           eclipse console.
>>>>> 
>>>>> Best
>>>>> 
>>>>> -- 
>>>>> Regards,
>>>>> Bina
>>>>> Indiana University Bloomington
>>>>> Dept Of Computer Science (Master's).
>>>>> Contact:- 812-327-4780
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> Kepler-users mailing list
>>>>> 
>>>>> Kepler-users at kepler-project.org
>>>>> http://lists.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users
>>>> 
>>>> 
>>>> 
>>>> 
>>>> -- 
>>>> Regards,
>>>> Bina
>>>> Indiana University Bloomington
>>>> Dept Of Computer Science (Master's).
>>>> Contact:- 812-327-4780
>>>> 
>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> Regards,
>>> Bina
>>> Indiana University Bloomington
>>> Dept Of Computer Science (Master's).
>>> Contact:- 812-327-4780
>>> 
>> 
>> 
>> 
>> 
>> -- 
>> Regards,
>> Bina
>> Indiana University Bloomington
>> Dept Of Computer Science (Master's).
>> Contact:- 812-327-4780
>> 
> 