code: /* LanguageTool, a natural language style checker
   * Copyright (C) 2012 Daniel Naber (http://www.danielnaber.de)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
   * USA
   */
  package org.languagetool.gui;
  
  import org.languagetool.rules.Rule;
  
  /**
   * A link for enabling or disabling a rule.
   */
  class RuleLink {
  
    private static final String DEACTIVATE_URL = "http://languagetool.org/deactivate/";
    private static final String REACTIVATE_URL = "http://languagetool.org/reactivate/";
  
    private final String urlPrefix;
    private final String id;
  
    private RuleLink(String urlPrefix, String id) {
      this.urlPrefix = urlPrefix;
      this.id = id;
    }
  
    static RuleLink buildDeactivationLink(Rule rule) {
      return new RuleLink(DEACTIVATE_URL, rule.getId());
    }
  
    static RuleLink buildReactivationLink(Rule rule) {
      return new RuleLink(REACTIVATE_URL, rule.getId());
    }
  
    static RuleLink getFromString(String ruleLink) {
      String id;
      if (ruleLink.startsWith(DEACTIVATE_URL)) {
        id = ruleLink.substring(DEACTIVATE_URL.length());
        return new RuleLink(DEACTIVATE_URL, id);
      } else if (ruleLink.startsWith(REACTIVATE_URL)) {
        id = ruleLink.substring(REACTIVATE_URL.length());
        return new RuleLink(REACTIVATE_URL, id);
      } else {
        throw new RuntimeException("Unknown link prefix: " + ruleLink);
      }
    }
  
    String getId() {
      return id;
    }
  
    @Override
    public String toString() {
      return urlPrefix + id;
    }
  
  }
  