How to make the JavaExecute component to fail

CloverDX Platform
1

hi team,

i have a situation,

if the inputfile is empty, the graph have to fail.

i use the UniversaldataReader to read the file. I felt no option in datareader.

So i used the javaExecute component to validate the input file. the run() metghon returns void, so i cant mark as failed.( i have to give system.exit(-1)).

other wise init() method to return false, then clover server throws componentinitialization failed exception.

Please help me to resolve this situation.

2

Hi,

If your validation of input file fails, you can throw runtime exception. This exception will interrupt graph processing.

Example of a class with runtime exception:

import org.jetel.component.BasicJavaRunnable;
import org.jetel.exception.JetelRuntimeException;

public class MyClass extends BasicJavaRunnable {

	@Override
	public void run() {
		
		// write into information log
		getNode().getLog().info("Custom info message");
		
		// Component JavaExecute will finish with status error with following message
		throw new JetelRuntimeException("Input file is empty");
	}

}

In console you can see:

ERROR [main] - 
--------------------------------- Error details ----------------------------------
  Component [JavaExecute:JAVA_EXECUTE] finished with status ERROR.
   Input file is empty
----------------------------------------------------------------------------------
ERROR [main] - Execution of graph failed !
3

Thanks