Package org.sonar.plugins.cxx.coverage

Source Code of org.sonar.plugins.cxx.coverage.VisualStudioParser

/*
* Sonar C++ Plugin (Community)
* Copyright (C) 2010 Neticoa SAS France
* dev@sonar.codehaus.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
*/
package org.sonar.plugins.cxx.coverage;

import java.io.File;
import java.util.Map;
import javax.xml.stream.XMLStreamException;
import org.codehaus.staxmate.in.SMHierarchicCursor;
import org.codehaus.staxmate.in.SMInputCursor;
import org.sonar.api.measures.CoverageMeasuresBuilder;
import org.sonar.api.utils.StaxParser;
import org.sonar.plugins.cxx.utils.CxxUtils;

/**
* {@inheritDoc}
*/
public class VisualStudioParser implements CoverageParser {

  /**
   * {@inheritDoc}
   */
  public void parseReport(File xmlFile, final Map<String, CoverageMeasuresBuilder> coverageData)
    throws XMLStreamException {
    CxxUtils.LOG.info("Parsing report '{}'", xmlFile);

    StaxParser parser = new StaxParser(new StaxParser.XmlStreamHandler() {
      /**
       * {@inheritDoc}
       */
      public void stream(SMHierarchicCursor rootCursor) throws XMLStreamException {
        rootCursor.advance();
        collectModuleMeasures(rootCursor.descendantElementCursor("module"), coverageData);
      }
    });
    parser.parse(xmlFile);
  }

  private void collectModuleMeasures(SMInputCursor module, Map<String, CoverageMeasuresBuilder> coverageData)
    throws XMLStreamException {
    while (module.getNext() != null) {
      handleModuleItems(module, coverageData);
    }
  }

  private void handleModuleItems(SMInputCursor module, Map<String, CoverageMeasuresBuilder> coverageData)
    throws XMLStreamException {
    SMInputCursor child = module.childElementCursor();
    while (child.getNext() != null) {
      String name = child.getLocalName();
      if (name.equalsIgnoreCase("functions")) {
        collectFunctionMeasures(child, coverageData);
      } else if (name.equalsIgnoreCase("source_files")) {
        collectSourceFileMeasures(child, coverageData);
      }
    }
  }

  private void collectSourceFileMeasures(SMInputCursor sourceFiles, Map<String, CoverageMeasuresBuilder> coverageData)
    throws XMLStreamException {
    SMInputCursor sourceFile = sourceFiles.childElementCursor("source_file");
    while (sourceFile.getNext() != null) {
      String id = sourceFile.getAttrValue("id");
      String normalPath = CxxUtils.normalizePath(sourceFile.getAttrValue("path"));
      CoverageMeasuresBuilder builder = coverageData.remove(id);
      if (normalPath != null) {
        coverageData.put(normalPath, builder); // replace id with path
      }
    }
  }

  private void collectFunctionMeasures(SMInputCursor functions, Map<String, CoverageMeasuresBuilder> coverageData)
    throws XMLStreamException {
    SMInputCursor function = functions.childElementCursor("function");
    while (function.getNext() != null) {
      int blocksCovered = Integer.parseInt(function.getAttrValue("blocks_covered"));
      int blocksNotCovered = Integer.parseInt(function.getAttrValue("blocks_not_covered"));
      collectRangeMeasures(function, coverageData, blocksCovered + blocksNotCovered, blocksCovered);
    }
  }

  private void collectRangeMeasures(SMInputCursor function, Map<String, CoverageMeasuresBuilder> coverageData, int conditions, int coveredConditions)
    throws XMLStreamException {
    SMInputCursor range = function.childElementCursor("ranges").advance().childElementCursor("range");
    CoverageMeasuresBuilder builder = null;
    String lastSourceId = "";

    while (range.getNext() != null) {
      String sourceId = range.getAttrValue("source_id");
      int startLine = Integer.parseInt(range.getAttrValue("start_line"));
      int endLine = Integer.parseInt(range.getAttrValue("end_line"));
      int covered = !range.getAttrValue("covered").equalsIgnoreCase("no") ? 1 : 0; // value: yes/no/partial

      if (!sourceId.equals(lastSourceId) || builder == null) {
        builder = coverageData.get(sourceId);
        if (builder == null) {
          builder = CoverageMeasuresBuilder.create();
          coverageData.put(sourceId, builder);
        }

        builder.setConditions(startLine - 1, conditions, coveredConditions);
        lastSourceId = sourceId;
      }

      while (startLine <= endLine) {
        builder.setHits(startLine, covered);
        startLine++;
      }
    }
  }

  @Override
  public String toString() {
    return getClass().getSimpleName();
  }
}
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