001    /*
002     * SonarQube, open source software quality management tool.
003     * Copyright (C) 2008-2013 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     */
020    package org.sonar.api.resources;
021    
022    import com.google.common.collect.Maps;
023    import org.apache.commons.lang.ArrayUtils;
024    import org.sonar.api.BatchComponent;
025    import org.sonar.api.ServerComponent;
026    
027    import java.util.ArrayList;
028    import java.util.Arrays;
029    import java.util.List;
030    import java.util.Map;
031    
032    /**
033     * A class to store the list of languages
034     *
035     * @since 1.10
036     */
037    public class Languages implements BatchComponent, ServerComponent {
038    
039      private final Map<String, Language> map = Maps.newHashMap();
040    
041      /**
042       * Creates a list of languages
043       */
044      public Languages(Language... languages) {
045        for (Language language : languages) {
046          map.put(language.getKey(), language);
047        }
048      }
049    
050      /**
051       * No languages are installed
052       */
053      public Languages() {
054      }
055    
056      /**
057       * @param keys the languages keys
058       * @return the list of suffix files associates to languages included in the current object
059       */
060      public String[] getSuffixes(String... keys) {
061        List<String> suffixes = new ArrayList<String>();
062    
063        for (Map.Entry<String, Language> entry : map.entrySet()) {
064          if (ArrayUtils.isEmpty(keys) || ArrayUtils.contains(keys, entry.getKey())) {
065            suffixes.addAll(Arrays.asList(entry.getValue().getFileSuffixes()));
066          }
067        }
068        return suffixes.toArray(new String[suffixes.size()]);
069      }
070    
071      /**
072       * Return a language from the current object based on its key
073       */
074      public Language get(String key) {
075        return map.get(key);
076      }
077    
078      /**
079       * Adds a language to the current object
080       */
081      public void add(Language language) {
082        map.put(language.getKey(), language);
083      }
084    }