Java Path Relative Get getRelativePath(File path, File basePath)

Description

get Relative Path

License

Open Source License

Declaration

public static String getRelativePath(File path, File basePath) 

Method Source Code

//package com.java2s;
// are made available under the terms of the Eclipse Public License v1.0

import java.io.File;

public class Main {
    public static String getRelativePath(File path, File basePath) {
        try {//from  w w  w  .  j  a  v  a  2s .  c o  m
            String dir = path.toURL().toExternalForm();
            String baseDir = appendSeparator(basePath.toURL().toExternalForm(), "/"); //$NON-NLS-1$
            StringBuffer result = new StringBuffer();
            while (dir.indexOf(baseDir) == -1) {
                basePath = basePath.getParentFile();
                baseDir = appendSeparator(basePath.toURL().toExternalForm(), "/"); //$NON-NLS-1$
                result.append("../"); //$NON-NLS-1$
            }
            if (dir.indexOf(baseDir) == 0) {
                String delta = dir.substring(baseDir.length());
                result.append(delta);
            }
            return result.toString();
        } catch (Exception e) {
            return ""; //$NON-NLS-1$
        }
    }

    /**
     * Appends the platform specific path separator to the end of a path.
     * 
     * @param path
     *            a path name
     * @return the path name appended with the platform specific path separator
     */
    public static String appendSeparator(String path) {
        return appendSeparator(path, File.separator);
    }

    /**
     * Appends the given path separator to the end of a path
     * 
     * @param path
     *            a path name
     * @param separator
     *            a path separator
     * @return the path name appended with the given separator
     */
    public static String appendSeparator(String path, String separator) {
        return path.endsWith(separator) ? path : path + separator;
    }
}

Related

1. getRelativePath(File parent, File child)
2. getRelativePath(File parent, File child)
3. getRelativePath(File parent, File f)
4. getRelativePath(File parentDirectory, File file)
5. getRelativePath(File path, File base)
6. getRelativePath(File ref_file, File tst_file)
7. getRelativePath(File root, File file)
8. getRelativePath(File root, File file)
9. getRelativePath(File root, File target, String fileSeparator)