Beispiel #1
0
      public void onDocument(Document document, String xpath) throws XmlParserException {
        if (xpath.equals(XPATH_IPEAK)) {
          Node node = document.getFirstChild();

          // check whether we're getting the correct ipeak
          Node typeattribute = node.getAttributes().getNamedItem(PeakMLWriter.TYPE);
          if (typeattribute == null)
            throw new XmlParserException("Failed to locate the type attribute.");
          if (!typeattribute.getNodeValue().equals(PeakMLWriter.TYPE_BACKGROUNDION))
            throw new XmlParserException(
                "IPeak ("
                    + typeattribute.getNodeValue()
                    + ") is not of type: '"
                    + PeakMLWriter.TYPE_BACKGROUNDION
                    + "'");

          // parse this node as a mass chromatogram
          BackgroundIon<? extends Peak> backgroundion = parseBackgroundIon(node);
          if (backgroundion != null) peaks.add(backgroundion);

          //
          if (_listener != null && result.header != null && result.header.getNrPeaks() != 0)
            _listener.update((100. * index++) / result.header.getNrPeaks());
        } else if (xpath.equals(XPATH_HEADER)) {
          result.header = parseHeader(document.getFirstChild());
        }
      }
Beispiel #2
0
 private static IPeak parseIPeak(Node parent) throws XmlParserException {
   Node type = parent.getAttributes().getNamedItem(PeakMLWriter.TYPE);
   if (type == null) return null;
   else if (type.getNodeValue().equals(PeakMLWriter.TYPE_PEAKSET)) return parsePeakSet(parent);
   else if (type.getNodeValue().equals(PeakMLWriter.TYPE_BACKGROUNDION))
     return parseBackgroundIon(parent);
   else if (type.getNodeValue().equals(PeakMLWriter.TYPE_MASSCHROMATOGRAM))
     return parseMassChromatogram(parent);
   else return null;
 }
Beispiel #3
0
      public void onDocument(Document document, String xpath) throws XmlParserException {
        if (xpath.equals(XPATH_IPEAK)) {
          Node node = document.getChildNodes().item(0);

          // check whether we're getting the correct ipeak
          Node typeattribute = node.getAttributes().getNamedItem(PeakMLWriter.TYPE);
          if (typeattribute == null
              || !typeattribute.getNodeValue().equals(PeakMLWriter.TYPE_PEAKSET))
            throw new XmlParserException("Failed to locate a type attribute.");

          // parse this node as a mass chromatogram
          IPeakSet<? extends IPeak> peakset = parsePeakSet(node);
          if (peakset != null) peaks.add(peakset);

          //
          if (_listener != null && result.header != null && result.header.getNrPeaks() != 0)
            _listener.update((100. * index++) / result.header.getNrPeaks());
        } else if (xpath.equals(XPATH_HEADER)) {
          result.header = parseHeader(document.getFirstChild());
        }
      }
Beispiel #4
0
  private static PeakData<? extends Peak> parsePeakData(Node parent) throws XmlParserException {
    // get the attributes
    Node typeattribute = parent.getAttributes().getNamedItem(PeakMLWriter.TYPE);
    if (typeattribute == null) throw new XmlParserException("Failed to locate a type attribute.");
    Node sizeattribute = parent.getAttributes().getNamedItem(PeakMLWriter.SIZE);
    if (sizeattribute == null) throw new XmlParserException("Failed to locate a size attribute.");

    int size = Integer.parseInt(sizeattribute.getNodeValue());
    String type = typeattribute.getNodeValue();

    // create the arrays
    int scanids[] = null;
    int patternids[] = null;
    int measurementids[] = null;
    double masses[] = null;
    double intensities[] = null;
    double retentiontimes[] = null;

    // retrieve all the data
    NodeList nodes = parent.getChildNodes();
    for (int nodeid = 0; nodeid < nodes.getLength(); ++nodeid) {
      Node node = nodes.item(nodeid);
      if (node.getNodeType() != Node.ELEMENT_NODE) continue;

      Element element = (Element) node;
      if (element.getTagName().equals("scanids"))
        scanids =
            ByteArray.toIntArray(
                Base64.decode(element.getTextContent()), ByteArray.ENDIAN_LITTLE, 32);
      else if (element.getTagName().equals("patternids"))
        patternids =
            ByteArray.toIntArray(
                Base64.decode(element.getTextContent()), ByteArray.ENDIAN_LITTLE, 32);
      else if (element.getTagName().equals("measurementids"))
        measurementids =
            ByteArray.toIntArray(
                Base64.decode(element.getTextContent()), ByteArray.ENDIAN_LITTLE, 32);
      else if (element.getTagName().equals("masses"))
        masses =
            ByteArray.toDoubleArray(
                Base64.decode(element.getTextContent()), ByteArray.ENDIAN_LITTLE, 32);
      else if (element.getTagName().equals("intensities"))
        intensities =
            ByteArray.toDoubleArray(
                Base64.decode(element.getTextContent()), ByteArray.ENDIAN_LITTLE, 32);
      else if (element.getTagName().equals("retentiontimes"))
        retentiontimes =
            ByteArray.toDoubleArray(
                Base64.decode(element.getTextContent()), ByteArray.ENDIAN_LITTLE, 32);
    }

    // create the PeakData instance
    if (type.equals("centroid"))
      return new PeakData<Centroid>(
          Centroid.factory,
          size,
          scanids,
          patternids,
          measurementids,
          masses,
          intensities,
          retentiontimes);
    return null;
  }