org.martin.ftp.util.RemoteComparator.java Source code

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Here is the source code for org.martin.ftp.util.RemoteComparator.java

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package org.martin.ftp.util;

import java.util.Comparator;
import org.apache.commons.net.ftp.FTPFile;

/**
 *
 * @author martin
 */
public class RemoteComparator implements Comparator<FTPFile> {

    private SortOption option;
    private SortOption order;
    private static final byte idDirectory = 0;
    private static final byte idFile = 1;

    public RemoteComparator(SortOption option, SortOption order) {
        this.option = option;
        this.order = order;
    }

    @Override
    public int compare(FTPFile o1, FTPFile o2) {

        if (null != option)
            switch (option) {
            case DATE:
                if (order == SortOption.UPWARD)
                    return (int) (o1.getTimestamp().getTimeInMillis() - o2.getTimestamp().getTimeInMillis());

                else
                    return (int) (o2.getTimestamp().getTimeInMillis() - o1.getTimestamp().getTimeInMillis());

            case FORMAT:
                String file1Format = Utilities.getFormat(o1.getName());
                String file2Format = Utilities.getFormat(o2.getName());
                if (order == SortOption.UPWARD)
                    if (o1.isDirectory() || o2.isDirectory()) {
                        if (o1.isDirectory() && o2.isDirectory())
                            return idDirectory - idDirectory;
                        else if (o1.isDirectory() && !o2.isDirectory())
                            return idDirectory - idFile;
                        else
                            return idFile - idDirectory;
                    } else
                        return file1Format.compareToIgnoreCase(file2Format);
                else if (o1.isDirectory() || o2.isDirectory()) {
                    if (o1.isDirectory() && o2.isDirectory())
                        return idDirectory - idDirectory;
                    else if (o1.isDirectory() && !o2.isDirectory())
                        return idFile - idDirectory;
                    else
                        return idDirectory - idFile;
                } else
                    return file2Format.compareToIgnoreCase(file1Format);

            case NAME:
                if (order == SortOption.UPWARD)
                    return o1.getName().compareToIgnoreCase(o2.getName());
                else
                    return o2.getName().compareToIgnoreCase(o1.getName());

            case SIZE:
                if (order == SortOption.UPWARD)
                    return (int) (o1.getSize() - o2.getSize());
                else
                    return (int) (o2.getSize() - o1.getSize());

            case TYPE:
                if ((o1.isDirectory() && o2.isDirectory()) || (!o1.isDirectory() && !o2.isDirectory()))
                    return idDirectory - idDirectory;

                if (order == SortOption.UPWARD)
                    if (o1.isDirectory() && !o2.isDirectory())
                        return idDirectory - idFile;

                    else
                        return idFile - idDirectory;
                else if (o1.isDirectory() && !o2.isDirectory())
                    return idFile - idDirectory;

                else
                    return idDirectory - idFile;
            default:
                return 0;
            }

        return 0;
    }

}