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IOObject class reference for execute script operator

udeshika_sewwanudeshika_sewwan Member Posts: 9 Learner III
in Help
Hi team,

I'm reading a collection of json objects from a MongoDB database and need to iterate through each json object. For this I want to use execute script operator to write a Java code to read the json object collection input  as an IOObject. I could do that, but cannot iterate through the json objects without knowing the capability of IOObject class. Can anyone please share a link to access the class references of Rapid Miner related packages.
Thank you in advance.
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Answers

  • udeshika_sewwanudeshika_sewwan Member Posts: 9 Learner III
    Hi team,

    In addition to the above problem, I want to read a json array returned from MongoDB Read operator. When I convert the dataset to a data table using JSON to Data operator, the array becomes flat. That way I cannot achieve my task. That's why I wanted to manipulate the json returned as a IOObject directly. Can you please help me on this ?
  • MartinLiebigMartinLiebig Administrator, Moderator, Employee-RapidMiner, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,533 RM Data Scientist
    the ioobject is referenced here: https://github.com/rapidminer/rapidminer-studio/blob/master/src/main/java/com/rapidminer/operator/IOObject.java but you like want to use SimpleExampleSet for it?


    Cheers,
    MArtin


    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
  • sgenzersgenzer Administrator, Moderator, Employee-RapidMiner, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM Moderator Posts: 2,959 Community Manager
    or you can not bother with all that scripting and just use the JSON tools in the Web Automation extension
  • udeshika_sewwanudeshika_sewwan Member Posts: 9 Learner III
    Thank you very much team. Will check on these suggested solutions. 
  • udeshika_sewwanudeshika_sewwan Member Posts: 9 Learner III
    Hi,

    I get the following error when I try to use operators from Web Automation Extension since I'm not having the liscence key. How can I overcome this?

    Thank you very much.


  • MartinLiebigMartinLiebig Administrator, Moderator, Employee-RapidMiner, RapidMiner Certified Analyst, RapidMiner Certified Expert, University Professor Posts: 3,533 RM Data Scientist
    Hi,
    like the error message says, contact OWC.

    Best,
    Martin

    CC: @land OWC's Head of DS
    - Sr. Director Data Solutions, Altair RapidMiner -
    Dortmund, Germany
  • landland RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 2,531 Unicorn
    Hi,
    yes, you will need to enter a proper license key for the extension. It's really not expensive with the 129 € per year. You can directly purchase it online on our website at oldworldcomputing.com
    And there's a good tutorial in our blog how to use it properly, because you need to use it differently.
    If you need a demo license to check out the functionality first, please contact our sales via the form on our website.

    Greetings,
     Sebastian
  • udeshika_sewwanudeshika_sewwan Member Posts: 9 Learner III
    Thank you @mschmitz and @land :smile:

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