001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
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.squid.indexer;
021    
022    import org.apache.commons.lang.StringUtils;
023    import org.sonar.squid.api.SourceCode;
024    
025    import java.util.*;
026    
027    public class SquidIndex implements Observer {
028    
029      Map<String, SourceCode> index = new TreeMap<String, SourceCode>();
030    
031      public Collection<SourceCode> search(Query... query) {
032        Set<SourceCode> result = new HashSet<SourceCode>();
033        for (SourceCode unit : index.values()) {
034          if (isSquidUnitMatchQueries(unit, query)) {
035            result.add(unit);
036          }
037        }
038        return result;
039      }
040    
041      private boolean isSquidUnitMatchQueries(SourceCode unit, Query... query) {
042        boolean match;
043        for (int i = 0; i < query.length; i++) {
044          match = query[i].match(unit);
045          if (!match) {
046            return false;
047          }
048        }
049        return true;
050      }
051    
052      public SourceCode search(String key) {
053        if (StringUtils.isBlank(key)) {
054          throw new IllegalStateException("Query's key can't be blank!");
055        }
056        return index.get(key);
057      }
058    
059      public void index(SourceCode project) {
060        project.addObserver(this);
061        index.put(project.getKey(), project);
062      }
063    
064      public void update(Observable parentResource, Object resourceAdded) {
065        if (!(resourceAdded instanceof SourceCode)) {
066          throw new IllegalStateException("ResourceIndexer expected a Resource object but get a : " + resourceAdded.getClass().getName());
067        }
068        SourceCode resource = (SourceCode) resourceAdded;
069        resource.addObserver(this);
070        index.put(resource.getKey(), resource);
071      }
072    }