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.slf4j.Logger;
025    import org.slf4j.LoggerFactory;
026    import org.sonar.api.BatchComponent;
027    import org.sonar.api.ServerComponent;
028    
029    import java.util.ArrayList;
030    import java.util.Arrays;
031    import java.util.List;
032    import java.util.Map;
033    
034    /**
035     * A class to store the list of languages
036     *
037     * @since 1.10
038     */
039    public class Languages implements BatchComponent, ServerComponent {
040    
041      private static final Logger LOG = LoggerFactory.getLogger(Languages.class);
042    
043      private final Map<String, Language> map = Maps.newLinkedHashMap();
044    
045      /**
046       * Creates a list of languages
047       */
048      public Languages(Language... languages) {
049        LOG.debug("Available languages:");
050        for (Language language : languages) {
051          map.put(language.getKey(), language);
052          LOG.debug("  * " + language.getName() + " => \"" + language.getKey() + "\"");
053        }
054      }
055    
056      /**
057       * No languages are installed
058       */
059      public Languages() {
060        LOG.debug("No language available");
061      }
062    
063      /**
064       * @param keys the languages keys
065       * @return the list of suffix files associates to languages included in the current object
066       */
067      public String[] getSuffixes(String... keys) {
068        List<String> suffixes = new ArrayList<String>();
069    
070        for (Map.Entry<String, Language> entry : map.entrySet()) {
071          if (ArrayUtils.isEmpty(keys) || ArrayUtils.contains(keys, entry.getKey())) {
072            suffixes.addAll(Arrays.asList(entry.getValue().getFileSuffixes()));
073          }
074        }
075        return suffixes.toArray(new String[suffixes.size()]);
076      }
077    
078      /**
079       * Return a language from the current object based on its key
080       */
081      public Language get(String key) {
082        return map.get(key);
083      }
084    
085      /**
086       * Adds a language to the current object
087       */
088      public void add(Language language) {
089        map.put(language.getKey(), language);
090      }
091    
092    }