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• TOVAL
• 1.0.0
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• RandomChooser.java

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de.invation.code.toval.misc.valuegeneration.RandomChooser Maven / Gradle / Ivy

package de.invation.code.toval.misc.valuegeneration;

import java.util.List;
import java.util.Random;

import de.invation.code.toval.validate.ParameterException;
import de.invation.code.toval.validate.Validate;


public class RandomChooser implements ValueChooser {
	
	Random rand = new Random();

	@Override
	public E chooseValue(List candidates) throws ParameterException {
		Validate.notNull(candidates);
		Validate.notEmpty(candidates);
		
		return candidates.get(rand.nextInt(candidates.size()));
	}

	@Override
	public boolean isValid() {
		return true;
	}

}