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.java.ast.visitor;
021    
022    import org.sonar.squid.api.SourceCode;
023    import org.sonar.squid.api.SourcePackage;
024    import org.sonar.squid.indexer.SquidIndex;
025    import org.sonar.squid.measures.Metric;
026    
027    import com.puppycrawl.tools.checkstyle.api.DetailAST;
028    import com.puppycrawl.tools.checkstyle.api.FullIdent;
029    import com.puppycrawl.tools.checkstyle.api.TokenTypes;
030    
031    public class PackageVisitor extends AstVisitor {
032    
033      private SquidIndex indexer;
034    
035      public PackageVisitor(SquidIndex indexer) {
036        this.indexer = indexer;
037      }
038    
039      @Override
040      public void visitFile(DetailAST ast) {
041        if (ast == null) {
042          // ast can be null for empty classes
043          return;
044        }
045        SourceCode packageRes = createSourcePackage(ast);
046        if (peekResource().hasChild(packageRes)) {
047          packageRes = indexer.search(packageRes.getKey());
048        }
049        packageRes.setMeasure(Metric.PACKAGES, 1);
050        addResource(packageRes);
051      }
052    
053      @Override
054      public void leaveFile(DetailAST ast) {
055        if (ast == null) {
056          // ast can be null for empty classes
057          return;
058        }
059        popResource();
060      }
061    
062      private SourcePackage createSourcePackage(DetailAST ast) {
063        SourcePackage packageRes;
064        if (ast.getType() != TokenTypes.PACKAGE_DEF) {
065          packageRes = new SourcePackage("");
066        } else {
067          String packageName = FullIdent.createFullIdent(ast.getLastChild().getPreviousSibling()).getText();
068          packageRes = new SourcePackage(packageName.replace('.', '/'));
069        }
070        return packageRes;
071      }
072    }