arfffilter.java

来自「GUI Ant-Miner is a tool for extracting c」· Java 代码 · 共 47 行

import java.io.File;

import javax.swing.filechooser.FileFilter;


/*
 * Created on 05/04/2005
 */

/**
 * @author Fernando Meyer
 */
public class ArffFilter extends FileFilter {
//	Accept all directories and arff data files.
    public boolean accept(File f) {
        if (f.isDirectory()) {
            return true;
        }

        String extension = getExtension(f);
        if (extension != null) {
            if (extension.equals("arff"))
                    return true;
            else
                return false;
        }

        return false;
    }

    //The description of this filter
    public String getDescription() {
        return "Arff Data Files (*.arff)";
    }
    
    public static String getExtension(File f) {
        String ext = null;
        String s = f.getName();
        int i = s.lastIndexOf('.');

        if (i > 0 &&  i < s.length() - 1) {
            ext = s.substring(i+1).toLowerCase();
        }
        return ext;
    }
}