// Return all the text from the child nodes of an element,
// inserting data from the DicomObject where required.
private static String getChildrenText(Element element, DicomObject dicomObject) {
StringBuffer sb = new StringBuffer();
Node node;
NodeList nodeList = element.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
node = nodeList.item(i);
if (node.getNodeType() == Node.TEXT_NODE) {
sb.append(node.getNodeValue());
} else if (node.getNodeType() == Node.ELEMENT_NODE) {
sb.append(getElementText((Element) node, dicomObject));
}
}
return sb.toString();
}
// Walk the tree from a specified element,
// inserting data from a DicomObject where required.
private static String getElementText(Element element, DicomObject dicomObject) {
if (dicomTag(element)) return getDicomElementText(element, dicomObject);
if (element.getTagName().equals("block")) return getBlockText(element, dicomObject);
StringBuffer sb = new StringBuffer();
sb.append("<" + element.getTagName());
NamedNodeMap attributes = element.getAttributes();
Attr attr;
for (int i = 0; i < attributes.getLength(); i++) {
attr = (Attr) attributes.item(i);
String attrValue = attr.getValue().trim();
if (dicomTag(attrValue)) {
attrValue = getDicomElementText(attrValue, dicomObject);
}
sb.append(" " + attr.getName() + "=\"" + attrValue + "\"");
}
sb.append(">");
if (element.getTagName().equals("table")) sb.append(getTableText(element, dicomObject));
else if (element.getTagName().equals("publication-date")) sb.append(StringUtil.getDate());
else sb.append(getChildrenText(element, dicomObject));
sb.append("</" + element.getTagName() + ">");
return sb.toString();
}
// Handle HTML table elements specially, automatically
// inserting the DICOM element name and the value for each child element.
private static String getTableText(Element element, DicomObject dicomObject) {
StringBuffer sb = new StringBuffer();
Node node;
Element elem;
NodeList nodeList = element.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
node = nodeList.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE) {
elem = (Element) node;
if (dicomTag(elem)) {
sb.append("\n<tr>");
sb.append("<td width=\"200\">" + getDicomElementName(elem) + "</td>");
sb.append("<td>" + getDicomElementText(elem, dicomObject) + "</td>");
sb.append("</tr>");
} else sb.append(getElementText(elem, dicomObject));
}
}
return sb.toString();
}
// Process a block element, inserting its contents before the element itself,
// allowing multiple instances of the element to be created, one for each DicomObject.
private static String getBlockText(Element element, DicomObject dicomObject) {
StringBuffer sb = new StringBuffer();
sb.append(getChildrenText(element, dicomObject));
sb.append(XmlUtil.toString(element));
return sb.toString();
}