DocumentStaxUtils.java 文件源码

/**
 * Processes a GateDocumentFeatures or Annotation element to build a
 * feature map. The element is expected to contain Feature children,
 * each with a Name and Value. The reader will be returned positioned
 * on the closing GateDocumentFeatures or Annotation tag.
 * 
 * @throws XMLStreamException
 */
public static FeatureMap readFeatureMap(XMLStreamReader xsr)
        throws XMLStreamException {
  FeatureMap fm = Factory.newFeatureMap();
  while(xsr.nextTag() == XMLStreamConstants.START_ELEMENT) {
    xsr.require(XMLStreamConstants.START_ELEMENT, null, "Feature");
    Object featureName = null;
    Object featureValue = null;
    while(xsr.nextTag() == XMLStreamConstants.START_ELEMENT) {
      if("Name".equals(xsr.getLocalName())) {
        featureName = readFeatureNameOrValue(xsr);
      }
      else if("Value".equals(xsr.getLocalName())) {
        featureValue = readFeatureNameOrValue(xsr);
      }
      else {
        throw new XMLStreamException("Feature element should contain "
                + "only Name and Value children", xsr.getLocation());
      }
    }
    fm.put(featureName, featureValue);
  }
  return fm;
}