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     */
020    package org.sonar.batch.index;
021    
022    import org.sonar.api.BatchComponent;
023    import org.sonar.batch.highlighting.SyntaxHighlightingData;
024    import org.sonar.batch.highlighting.SyntaxHighlightingDataValueCoder;
025    
026    import javax.annotation.CheckForNull;
027    
028    public class ComponentDataCache implements BatchComponent {
029      private final Cache cache;
030    
031      public ComponentDataCache(Caches caches) {
032        caches.registerValueCoder(SyntaxHighlightingData.class, new SyntaxHighlightingDataValueCoder());
033        cache = caches.createCache("componentData");
034      }
035    
036      public <D extends Data> ComponentDataCache setData(String componentKey, String dataType, D data) {
037        cache.put(componentKey, dataType, data);
038        return this;
039      }
040    
041      public ComponentDataCache setStringData(String componentKey, String dataType, String data) {
042        return setData(componentKey, dataType, new StringData(data));
043      }
044    
045      @CheckForNull
046      public <D extends Data> D getData(String componentKey, String dataType) {
047        return (D) cache.get(componentKey, dataType);
048      }
049    
050      @CheckForNull
051      public String getStringData(String componentKey, String dataType) {
052        Data data = (Data) cache.get(componentKey, dataType);
053        return data == null ? null : ((StringData) data).data();
054      }
055    
056      public <D extends Data> Iterable<Cache.Entry<D>> entries(String componentKey) {
057        return cache.entries(componentKey);
058      }
059    }