001/*
002 * SonarQube, open source software quality management tool.
003 * Copyright (C) 2008-2014 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * SonarQube 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 * SonarQube 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 License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019 */
020package org.sonar.api.resources;
021
022import com.google.common.collect.Maps;
023import org.apache.commons.lang.ArrayUtils;
024import org.sonar.api.BatchComponent;
025import org.sonar.api.ServerComponent;
026import org.sonar.api.utils.log.Logger;
027import org.sonar.api.utils.log.Loggers;
028
029import java.util.ArrayList;
030import java.util.Arrays;
031import java.util.Collection;
032import java.util.List;
033import java.util.Map;
034
035/**
036 * A class to store the list of languages
037 *
038 * @since 1.10
039 */
040public class Languages implements BatchComponent, ServerComponent {
041
042  private static final Logger LOG = Loggers.get(Languages.class);
043
044  private final Map<String, Language> map = Maps.newLinkedHashMap();
045
046  /**
047   * Creates a list of languages
048   */
049  public Languages(Language... languages) {
050    LOG.debug("Available languages:");
051    for (Language language : languages) {
052      map.put(language.getKey(), language);
053      LOG.debug("  * " + language.getName() + " => \"" + language.getKey() + "\"");
054    }
055  }
056
057  /**
058   * No languages are installed
059   */
060  public Languages() {
061    LOG.debug("No language available");
062  }
063
064  /**
065   * @param keys the languages keys
066   * @return the list of suffix files associates to languages included in the current object
067   */
068  public String[] getSuffixes(String... keys) {
069    List<String> suffixes = new ArrayList<String>();
070
071    for (Map.Entry<String, Language> entry : map.entrySet()) {
072      if (ArrayUtils.isEmpty(keys) || ArrayUtils.contains(keys, entry.getKey())) {
073        suffixes.addAll(Arrays.asList(entry.getValue().getFileSuffixes()));
074      }
075    }
076    return suffixes.toArray(new String[suffixes.size()]);
077  }
078
079  /**
080   * Return a language from the current object based on its key
081   */
082  public Language get(String key) {
083    return map.get(key);
084  }
085
086  /**
087   * Adds a language to the current object
088   */
089  public void add(Language language) {
090    map.put(language.getKey(), language);
091  }
092
093  /**
094   * @since 4.2
095   */
096  public Language[] all() {
097    Collection<Language> languages = map.values();
098    return languages.toArray(new Language[languages.size()]);
099  }
100
101}