D-Net

package eu.dnetlib.validator.service.impls.rules.xml;

import java.util.ArrayList;

import java.util.List;

import java.util.Properties;

import org.w3c.dom.NodeList;

import eu.dnetlib.validator.engine.data.DataException;

import eu.dnetlib.validator.engine.data.Rule;

import eu.dnetlib.validator.engine.data.RuleException;

import eu.dnetlib.validator.engine.execution.ValidationObject;

import eu.dnetlib.validator.service.impls.valobjs.XMLTextValidationObject;

/**

 * Checks that the XML fields specified by {@link XMLNotConfusedFieldsRule#FIELDS} have no intersecting values.

 * @author Manos Karvounis

 */

public class XMLNotConfusedFieldsRule extends Rule implements XMLRule {

	private static final long serialVersionUID = -6253009649310760559L;

	// comma seperated xpaths

	public static final String FIELDS = "fields";

	public XMLNotConfusedFieldsRule(Properties pros, int id) {

		super(pros, id);

	}

	@Override

	public boolean apply(ValidationObject obj) throws RuleException {

		XMLTextValidationObject tobj = (XMLTextValidationObject) obj;

		List<NodeList> lnodelist = new ArrayList<NodeList>();

		try {

			String[] xpaths = this.pros.getProperty(FIELDS).split(",");

			for (String xpath : xpaths) {

				lnodelist.add(tobj.getNodes(xpath.trim()));

			}

		} catch (DataException e) {

			log.error("", e);

			return false;

		}

		for (int i = 0; i < lnodelist.size(); i++) {

			for (int k = 0; k < lnodelist.get(i).getLength(); k++) {

				String val1 = lnodelist.get(i).item(k).getNodeValue();

				log.debug("XML Not Confused Fields Rule. Val1: "+val1);

				for (int j = i + 1; j < lnodelist.size(); j++) {

					for (int l = 0; l < lnodelist.get(j).getLength(); l++) {

						String val2 = lnodelist.get(j).item(l).getNodeValue();

						log.debug("XML Not Confused Fields Rule. Val1: "+val2);

						if(val1.trim().equalsIgnoreCase(val2.trim()))

							return false;

					}

				}

			}

		}

		return true;

	}

}