001/*
002 * Sonar, open source software quality management tool.
003 * Copyright (C) 2008-2012 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * Sonar is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * Sonar is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with Sonar; if not, write to the Free Software
018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019 */
020package org.sonar.core.i18n;
021
022import com.google.common.collect.Lists;
023import org.apache.commons.lang.StringEscapeUtils;
024import org.sonar.api.ServerComponent;
025
026import java.util.*;
027
028public class GwtI18n implements ServerComponent {
029  public static final String GWT_BUNDLE = I18nManager.BUNDLE_PACKAGE + "gwt";
030
031  private I18nManager manager;
032  private String[] propertyKeys;
033
034  public GwtI18n(I18nManager manager) {
035    this.manager = manager;
036  }
037
038  public void start() {
039    doStart(getBundle(Locale.ENGLISH));
040  }
041
042  void doStart(ResourceBundle englishBundle) {
043    List<String> keys = Lists.newArrayList();
044    Enumeration<String> enumeration = englishBundle.getKeys();
045    while (enumeration.hasMoreElements()) {
046      String propertyKey = enumeration.nextElement();
047      keys.add(propertyKey);
048    }
049    propertyKeys = keys.toArray(new String[keys.size()]);
050  }
051
052  String[] getPropertyKeys() {
053    return propertyKeys;
054  }
055
056  /**
057   * Used by the JRuby on Rails application
058   */
059  public String getJsDictionnary(Locale locale) {
060    ResourceBundle bundle = getBundle(locale);
061    return getJsDictionnary(bundle);
062  }
063
064  String getJsDictionnary(ResourceBundle bundle) {
065    StringBuilder js = new StringBuilder("var l10n = {");
066    for (int index = 0; index < propertyKeys.length; index++) {
067      String key = propertyKeys[index];
068      String value = StringEscapeUtils.escapeJavaScript(bundle.getString(key));
069      if (index > 0) {
070        js.append(",");
071      }
072      js.append("\"").append(key).append("\": \"").append(value).append("\"");
073    }
074    js.append("};");
075    return js.toString();
076  }
077
078  ResourceBundle getBundle(Locale locale) {
079    try {
080      return ResourceBundle.getBundle(GWT_BUNDLE, locale, manager.getLanguagePackClassLoader());
081    } catch (MissingResourceException e) {
082      throw new IllegalStateException("The English bundle for GWT extensions is not deployed", e);
083    }
084  }
085}