Use io ports in Script Execution Operator in Java

kemoc

Hi,
I have another problem:
I try to use 2 Input ports and 2 output ports into Script Execution Operator and unfortunatelly it dosen't work,
my code:

ExampleSet exampleSet5 = table.createExampleSet(label);

List<IOObject> connList = new IOContainer(exampleSet5).asList();
operator.getOutputPorts().getPortByName("output 1").receive( connList.get(0) );

I have Exception
groovy.lang.MissingMethodException: No signature of method: com.rapidminer.operator.ports.impl.OutputPortImpl.receive() is applicable for argument types: (com.rapidminer.example.set.SimpleExampleSet) values: [SimpleExampleSet:
Possible solutions: deliver(com.rapidminer.operator.IOObject).

I tried:
IOObject ioo = examplseSet5;
IOContainer ioc = new IOContainer(new IOObject[] {ioo});
but RM still throw Exception.

Marco_Boeck

Hi,

is there any particular reason why you don't want to take the advice I posted in your other thread here?
Trying to programmatically create processes is a) tedious and b) error-prone, so it is discouraged.

Regards,
Marco

kemoc

Marco Boeck wrote:
Hi, is there any particular reason why you don't want to take the advice I posted in your other thread here? Trying to programmatically create processes is a) tedious and b) error-prone, so it is discouraged. Regards, Marco

I got task from my academic teacher, where RM must read data from Java code and show part of that data in a chart, another part data in each iteration.

kemoc

Could somebody help? Please.

Marco_Boeck

Hi,

the "Execute script" operator can take inputs and deliver them to the according output ports - if you do so in the script.
So for example when you deliver an ExampleSet, you need to return it inside the script:

ExampleSet exampleSet = input[0];
[...]
return exampleSet;

You don't need to call the output ports directly.


Regards,
Marco

marcin_blachnik

Look at your code and check what you are doing - do you really want to "receive" data from output port ? Or maybe you want to "deliver" data to the output port.

Best
Marcin