package org.grouplens.lenskit.util;

import java.io.File;

/**
 * File utilities for LensKit. Called LKFileUtils to avoid conflict with FileUtils
 * classes that may be imported from other packages such as Guava, Plexus, or Commons.
 *
 * @author Michael Ekstrand
 * @since 0.10
 */
public final class LKFileUtils {
    private LKFileUtils() {}

    /**
     * Query whether this filename represents a compressed file. It just looks at
     * the name to see if it ends in “.gz”.
     * @param file The file to query.
     * @return {@code true} if the file name ends in “.gz”.
     */
    public static boolean isCompressed(File file) {
        return file.getName().endsWith(".gz");
    }
}

/*
 * LensKit, an open source recommender systems toolkit.
 * Copyright 2010-2012 Regents of the University of Minnesota and contributors
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package org.grouplens.lenskit.util;

import java.io.File;

/**
 * File utilities for LensKit. Called LKFileUtils to avoid conflict with FileUtils
 * classes that may be imported from other packages such as Guava, Plexus, or Commons.
 *
 * @author Michael Ekstrand
 * @since 0.10
 */
public final class LKFileUtils {
    private LKFileUtils() {}

    /**
     * Query whether this filename represents a compressed file. It just looks at
     * the name to see if it ends in “.gz”.
     * @param file The file to query.
     * @return {@code true} if the file name ends in “.gz”.
     */
    public static boolean isCompressed(File file) {
        return file.getName().endsWith(".gz");
    }
}

Add missing license header