PathHelper.java

package br.com.etyllica.util;

import java.io.File;
import java.io.IOException;
import java.net.URL;

import javax.swing.filechooser.FileSystemView;

import br.com.etyllica.util.io.IOHelper;

public class PathHelper {

	public static String currentDirectory() {
		
		String currentDirectory = "";
		
		try {
			String path = new File(".").getCanonicalPath().toString();
			currentDirectory = path+File.separator;
			
			return currentDirectory;
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return currentDirectory;
	}
	
	public static String currentFileDirectory() {
		
		String currentDirectory = "";
		
		try {
			String path = new File(".").getCanonicalPath().toString();
			currentDirectory = IOHelper.FILE_PREFIX+path+File.separator;
			
			return currentDirectory;
		} catch (IOException e) {
			e.printStackTrace();
		}
		
		return currentDirectory;
	}
	
	public static String upperDirectory(String path) {
		
		String separator = File.separator;
		if (!path.contains(separator)) {
			separator = "\\";
		}
		
		return path.substring(0,path.lastIndexOf(separator)+1);
	}
	
	public static String currentPath() {
		URL location = PathHelper.class.getProtectionDomain().getCodeSource().getLocation();
		String currentDirectory = IOHelper.FILE_PREFIX+location.getPath();
		return currentDirectory;
	}
	
	public static String desktopDirectory() {
		FileSystemView filesys = FileSystemView.getFileSystemView();
		return filesys.getHomeDirectory().getAbsolutePath()+File.separator;
	}
	
	public static String programFilesDirectory() {
		return System.getenv("ProgramFiles");	
	}

	public static String getExternalStoragePath() {
		return currentPath();
	}
	
	public static String clearPath(String path) {
		String cleanPath = path.replaceAll("/", File.separator);
		
		final String upper = "../";
		int index = cleanPath.indexOf(upper);
		while (index != -1) {
			int lastFolder = lastFolder(cleanPath, index);
			String before = cleanPath.substring(0, lastFolder-1);
			String after = cleanPath.substring(index + 3);
			cleanPath = before + after;
			
			index = cleanPath.indexOf(upper);
		}
		return cleanPath;
	}
	
	private static int lastFolder(String path, int cursor) {
		int index = cursor;
		while (path.charAt(index) != File.separatorChar) {
			index--;
		}
		return index;
	}
	
}