package be.mentoringsystems.merke.helper;

import java.lang.reflect.InvocationTargetException;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.beanutils.PropertyUtils;

/**
 *
 * @author anthonyarents
 */
public final class DTOHelper {

    private DTOHelper() {
    }

    public static void copyNonNull(final Object source, final Object target) {
        try {
            Map<String, Object> sourceValues = PropertyUtils.describe(source);
            Collection<Object> values = sourceValues.values();
            values.removeAll(Collections.singleton(null));
            populate(sourceValues, target);
        } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException ex) {
            Logger.getLogger(DTOHelper.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public static void copy(final Object source, final Object target) {
        try {
            Map<String, Object> sourceValues = PropertyUtils.describe(source);
            populate(sourceValues, target);
        } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException ex) {
            Logger.getLogger(DTOHelper.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    public static void populate(final Map<String, Object> source, final Object target) throws IllegalAccessException, InvocationTargetException {
        BeanUtils.populate(target, source);
    }
}