CSVDataReader and Operator.apply method Issues

jaysonpryde

Good day,

I'm new to rapidMiner/rapidMiner development. I am currently creating a java application that does simple classification.
However, i am encountering 2 issues inhibiting me to proceed to further development:

1. [CSVDataReader]: No operator description object given for 'com.rapidminer.operator.io.CSVDataReader'
    - I am receiving the said exception when I ran this code snippet:
       

Operator unlabeled = OperatorService.createOperator(CSVDataReader.class);

2. Operator.apply method is already deprecated
   

unlabeled.apply(new IOContainer());

    - as stated, .apply method of Operator object is deprecated. Are there any replacement(s) for this. Currently, I am doing it the long way.
      That is,

     

Process csvProcess = new Process();
csvProcess.getRootOperator().addOperator(unlabeled, 0);
IOContainer c = csvProcess.run();
ExampleSet es = c.get(ExampleSet.class);

Hoping to hear any feedback from you guys. Thank you

jaysonpryde

Hi All,

    I was able to address the 2 issues i've posted. The first one was resolved correcting the import (import com.rapidminer.operator.nio.CSVExampleSource instead of import com.rapidminer.operator.io.CSVExampleSource).

For the 2nd one, I am now using doWork() method. However, this returns void.
How will I be able to put the result of this to an IOContainer object? Casting it is not permitted

Hoping to hear feedback from you guys. Any help is greatly appreciated. Thank you