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package org.jooq;

import java.io.File;
import java.util.Comparator;

A comparator that compares file names semantically, just like the Windows
Explorer.

Desired semantic ordering:
version-1
version-2
version-10


Undesired, lexicographic ordering:
version-1
version-10
version-2

Author:
Lukas Eder/**
 * A comparator that compares file names semantically, just like the Windows
 * Explorer.
 * <p>
 * <strong>Desired semantic ordering:</strong>
 *
 * <pre>
 * version-1
 * version-2
 * version-10
 * </pre>
 * <p>
 * <strong>Undesired, lexicographic ordering:</strong>
 *
 * <pre>
 * version-1
 * version-10
 * version-2
 * </pre>
 *
 * @author Lukas Eder
 */
final class FileComparator implements Comparator<File> {

    public static final FileComparator INSTANCE = new FileComparator();

    @Override
    public final int compare(File o1, File o2) {
        String s1 = o1 == null ? null : o1.getName();
        String s2 = o2 == null ? null : o2.getName();

        return FilenameComparator.INSTANCE.compare(s1, s2);
    }
}