SafeURLEncoder.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.elephant.impl.util;
 
public class SafeURLEncoder {
  private static final String[][] map = {
    {"%", "%25"},
    {"$", "%24"},
    {"&", "%26"},
    {"+", "%2B"},
    {",", "%2C"},
    {"/", "%2F"},
    {":", "%3A"},
    {";", "%3B"},
    {"=", "%3D"},
    {"?", "%3F"},
    {"@", "%40"},
    {" ", "%20"},
    {"\"", "%22"},
    {"<", "%3C"},
    {">", "%3E"},
    {"#", "%23"},
    {"{", "%7B"},
    {"}", "%7D"},
    {"|", "%7C"},
    {"\\", "%5C"},
    {"^", "%5E"},
    {"~", "%7E"},
    {"[", "%5B"},
    {"]", "%5D"},
    {"`", "%60"}
  };
  
  private SafeURLEncoder() {
  }
  
  public static String encode(String value) {
    for(int i = 0; i < map.length; i++) {
      value = value.replace(map[i][0], map[i][1]);
    }
    return value;
  }
  
  public static String decode(String value) {
    for(int i = map.length - 1; i >= 0; i--) {
      value = value.replace(map[i][1], map[i][0]);
    }
    return value;
  }
  
}