com.day.jcr.vault.util.NodeNameComparator Maven / Gradle / Ivy

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package com.day.jcr.vault.util;

import java.util.Comparator;

import javax.jcr.Node;
import javax.jcr.RepositoryException;

/**
 * ItemNameComparator...
 */
public class NodeNameComparator implements Comparator {

    public static final NodeNameComparator INSTANCE = new NodeNameComparator();

    public int compare(Node o1, Node o2) {
        try {
            // sort namespaced first
            String n1 = o1.getName().toLowerCase();
            String n2 = o2.getName().toLowerCase();
            int i1 = n1.indexOf(':');
            int i2 = n2.indexOf(':');
            if (i1 >=0 && i2 < 0) {
                return -1;
            } else if (i1 < 0 && i2 >=0) {
                return 1;
            } else if (n1.equals(n2)) {
                // compare indexes for SNS
                return o1.getIndex() - o2.getIndex();
            } else {
                return n1.compareTo(n2);
            }
        } catch (RepositoryException e) {
            throw new IllegalStateException(e);
        }
    }
}