EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.api.service;

import java.util.Comparator;

import java.util.Set;

import org.apache.commons.lang.StringUtils;

import eu.etaxonomy.cdm.common.TreeNode;

import eu.etaxonomy.cdm.model.description.Distribution;

import eu.etaxonomy.cdm.model.location.NamedArea;

public class DistributionNodeByAreaLabelComparator implements Comparator<TreeNode<Set<Distribution>, NamedArea>>{

    @Override

    public int compare(TreeNode<Set<Distribution>, NamedArea> node1, TreeNode<Set<Distribution>, NamedArea> node2) {

        String label1 = node1.getNodeId().getLabel();

        String label2 = node2.getNodeId().getLabel();

        if (StringUtils.isBlank(label1)){

            label1 = node1.getNodeId().getUuid().toString();

        }

        if (StringUtils.isBlank(label2)){

            label2 = node2.getNodeId().getUuid().toString();

        }

        int result = label1.compareTo(label2);

        if (result == 0){

            result = node1.getNodeId().getUuid().compareTo(node2.getNodeId().getUuid());

        }

        return result;

    }

}