net.landora.video.filestate.DirectoryUUIDChecker.java Source code

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Here is the source code for net.landora.video.filestate.DirectoryUUIDChecker.java

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/**
 * Copyright (C) 2012-2014 Blake Dickie
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 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, see <http://www.gnu.org/licenses/>.
 */
package net.landora.video.filestate;

import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

/**
 *
 * @author bdickie
 */
public class DirectoryUUIDChecker {

    private static final Logger log = LoggerFactory.getLogger(DirectoryUUIDChecker.class);

    public static final String UUID_FILE = ".gs_video_uuid";

    public static boolean validateUUID(File directory, String uuid) {
        try {
            File uuidFile = new File(directory, UUID_FILE);
            if (!uuidFile.exists()) {
                return false;
            }
            List<String> lines = FileUtils.readLines(uuidFile);
            return lines.contains(uuid);
        } catch (Exception e) {
            log.error("Error checking for directory uuid: " + directory, e);
            return false;
        }
    }

    public static void setUUID(File directory, String uuid) {
        try {
            File uuidFile = new File(directory, UUID_FILE);
            Set<String> uuids = new LinkedHashSet<String>();

            if (uuidFile.exists()) {
                uuids.addAll(FileUtils.readLines(uuidFile));
            }
            uuids.add(uuid);
            FileUtils.writeLines(uuidFile, uuids);
        } catch (Exception e) {
            log.error("Error adding directory uuid: " + directory, e);

        }
    }
}