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.api.batch.sensor.duplication.internal;
021    
022    import com.google.common.base.Preconditions;
023    import org.sonar.api.batch.fs.InputFile;
024    import org.sonar.api.batch.fs.internal.DefaultInputFile;
025    import org.sonar.api.batch.sensor.duplication.DuplicationBuilder;
026    import org.sonar.api.batch.sensor.duplication.DuplicationGroup;
027    
028    import java.util.ArrayList;
029    import java.util.List;
030    
031    public class DefaultDuplicationBuilder implements DuplicationBuilder {
032    
033      private final InputFile inputFile;
034      private DuplicationGroup current = null;
035      private List<DuplicationGroup> duplications;
036    
037      public DefaultDuplicationBuilder(InputFile inputFile) {
038        this.inputFile = inputFile;
039        duplications = new ArrayList<DuplicationGroup>();
040      }
041    
042      @Override
043      public DuplicationBuilder originBlock(int startLine, int endLine) {
044        if (current != null) {
045          duplications.add(current);
046        }
047        current = new DuplicationGroup(new DuplicationGroup.Block(((DefaultInputFile) inputFile).key(), startLine, endLine - startLine + 1));
048        return this;
049      }
050    
051      @Override
052      public DuplicationBuilder isDuplicatedBy(InputFile sameOrOtherFile, int startLine, int endLine) {
053        return isDuplicatedBy(((DefaultInputFile) sameOrOtherFile).key(), startLine, endLine);
054      }
055    
056      /**
057       * For internal use. Global duplications are referencing files outside of current project so
058       * no way to manipulate an InputFile.
059       */
060      public DuplicationBuilder isDuplicatedBy(String fileKey, int startLine, int endLine) {
061        Preconditions.checkNotNull(current, "Call originBlock() first");
062        current.addDuplicate(new DuplicationGroup.Block(fileKey, startLine, endLine - startLine + 1));
063        return this;
064      }
065    
066      @Override
067      public List<DuplicationGroup> build() {
068        Preconditions.checkNotNull(current, "Call originBlock() first");
069        duplications.add(current);
070        List<DuplicationGroup> result = duplications;
071        reset();
072        return result;
073      }
074    
075      private void reset() {
076        duplications = new ArrayList<DuplicationGroup>();
077        current = null;
078      }
079    }