Mover.java

package mover;

import java.io.File;
import java.nio.file.Files;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Moves files to folders with name founded year (4 length number in parenthesis) in file name. Can be used for ordering movie files
 * Ex.: file name: The Bourne Identity (2002).mp4
 * destination folder will be: 2002
 */
public class Mover {

    private static Pattern YEAR_PATTERN = Pattern.compile("\\([0-9]{4}\\)");

    /**
     * @param args first argument will be used as root path
     */
    public static void main( String[] args ) {
        if (args == null || args.length == 0) {
            log("'args' is null or empty");
            return;
        }

        File root = new File(args[0]);

        if (! root.exists()) {
            log("Root path does not exists");
            return;
        }

        for(String file : root.list()) {
            Matcher matcher = YEAR_PATTERN.matcher(file);

            if (matcher.find()) {
                File yearFolder = new File(root.getAbsolutePath() + "/" + matcher.group(0).replace("(", "").replace(")", ""));
                if (! yearFolder.exists()) {
                    if (! yearFolder.mkdirs()) {
                        log("Couldn't create folders for path '%s'", yearFolder.getAbsolutePath());
                    }
                }

                File movieFile = new File(root.getAbsolutePath() + "/" + file);
                if (movieFile.isFile()) {
                    try {
                        Files.move(movieFile.toPath(), new File(yearFolder.getAbsolutePath() + "/" + file).toPath());
                        log("Moving %s to %s", movieFile.toPath().toString(), new File(yearFolder.getAbsolutePath() + "/" + file).toPath().toAbsolutePath());
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }

    /**
     * Log helper
     * @param string string to log
     * @param args args to format with
     */
    private static void log( String string, Object... args ) {
        System.out.println(String.format(string, args));
    }

}