001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2011 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     */
020    package org.sonar.server.ui;
021    
022    import org.apache.commons.lang.StringUtils;
023    import org.sonar.api.ServerExtension;
024    import org.sonar.api.utils.Logs;
025    import org.sonar.api.web.CodeColorizerFormat;
026    import org.sonar.colorizer.CodeColorizer;
027    import org.sonar.colorizer.HtmlOptions;
028    import org.sonar.colorizer.Tokenizer;
029    
030    import java.io.StringReader;
031    import java.util.Collections;
032    import java.util.HashMap;
033    import java.util.List;
034    import java.util.Map;
035    
036    public class CodeColorizers implements ServerExtension {
037    
038      private Map<String, CodeColorizerFormat> formatPerLanguage;
039    
040      public CodeColorizers(List<CodeColorizerFormat> formats) {
041        formatPerLanguage = new HashMap<String, CodeColorizerFormat>();
042        for (CodeColorizerFormat format : formats) {
043          formatPerLanguage.put(format.getLanguageKey(), format);
044        }
045    
046        Logs.INFO.info("Code colorizer, supported languages: " + StringUtils.join(formatPerLanguage.keySet(), ","));
047      }
048    
049      public String toHtml(String code, String language) {
050        List<Tokenizer> tokenizers;
051        CodeColorizerFormat format = formatPerLanguage.get(language);
052        if (format == null) {
053          tokenizers = Collections.emptyList();
054        } else {
055          tokenizers = format.getTokenizers();
056        }
057        return new CodeColorizer(tokenizers).toHtml(new StringReader(code), HtmlOptions.ONLY_SYNTAX);
058      }
059    }