I'm having trouble inserting a "use" element into a Document. This is a basic
drawing application that has a "stamp" tool, and for this stamp I'm using a
group. When I try to append the use element to the document I get the error
"The attribute "xlink:href" of the element <use> is required". The xlink:href
attribute is most certainly present, here is the code that creates the element:
final Element element = getElement();
element.setAttributeNS(SketchPadConstants.SVG_XLINK_NS, X_ATTRIBUTE_NAME, "" +
origin.getX());
element.setAttributeNS(SketchPadConstants.SVG_XLINK_NS, Y_ATTRIBUTE_NAME, "" +
origin.getY());
element.setAttributeNS(SketchPadConstants.SVG_XLINK_NS, "xlink:href",
GROUP_NAME);
.
.
.
document.getDocumentElement().appendChild(element);
If I save the document to the file system after inserting a few of these
stamps, and then open it, the stamps render without any problems. Could there
be something that is happening under the covers in the save/open process? What
am I missing here? Here is how the Document object is saved to the file system
(how we convert it to a string):
DOMSource domSource = new DOMSource(node);
StringWriter writer = new StringWriter();
StreamResult result = new StreamResult(writer);
TransformerFactory tf = TransformerFactory.newInstance();
try {
Transformer transformer = tf.newTransformer();
transformer.transform(domSource, result);
return writer.toString();
}
and here is how a file is opened (converted from a string to a Document object):
SAXSVGDocumentFactory factory = new
SAXSVGDocumentFactory(XMLResourceDescriptor.getXMLParserClassName());
return factory.createDocument(SVGDOMImplementation.SVG_NAMESPACE_URI, new
StringReader(svgXmlDocumentAsString));
Any help would be greatly appreciated!
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