/**
* Receive notification of the start of an element.
*
* @param handler non-null reference to current StylesheetHandler that is constructing the
* Templates.
* @param uri The Namespace URI, or an empty string.
* @param localName The local name (without prefix), or empty string if not namespace processing.
* @param rawName The qualified name (with prefix).
* @param attributes The specified or defaulted attributes.
*/
public void startElement(
StylesheetHandler handler,
String uri,
String localName,
String rawName,
Attributes attributes)
throws org.xml.sax.SAXException {
try {
ElemTemplateElement p = handler.getElemTemplateElement();
boolean excludeXSLDecl = false;
boolean isLREAsStyleSheet = false;
if (null == p) {
// Literal Result Template as stylesheet.
XSLTElementProcessor lreProcessor = handler.popProcessor();
XSLTElementProcessor stylesheetProcessor =
handler.getProcessorFor(Constants.S_XSLNAMESPACEURL, "stylesheet", "xsl:stylesheet");
handler.pushProcessor(lreProcessor);
Stylesheet stylesheet;
try {
stylesheet = getStylesheetRoot(handler);
} catch (TransformerConfigurationException tfe) {
throw new TransformerException(tfe);
}
// stylesheet.setDOMBackPointer(handler.getOriginatingNode());
// ***** Note that we're assigning an empty locator. Is this necessary?
SAXSourceLocator slocator = new SAXSourceLocator();
Locator locator = handler.getLocator();
if (null != locator) {
slocator.setLineNumber(locator.getLineNumber());
slocator.setColumnNumber(locator.getColumnNumber());
slocator.setPublicId(locator.getPublicId());
slocator.setSystemId(locator.getSystemId());
}
stylesheet.setLocaterInfo(slocator);
stylesheet.setPrefixes(handler.getNamespaceSupport());
handler.pushStylesheet(stylesheet);
isLREAsStyleSheet = true;
AttributesImpl stylesheetAttrs = new AttributesImpl();
AttributesImpl lreAttrs = new AttributesImpl();
int n = attributes.getLength();
for (int i = 0; i < n; i++) {
String attrLocalName = attributes.getLocalName(i);
String attrUri = attributes.getURI(i);
String value = attributes.getValue(i);
if ((null != attrUri) && attrUri.equals(Constants.S_XSLNAMESPACEURL)) {
stylesheetAttrs.addAttribute(
null, attrLocalName, attrLocalName, attributes.getType(i), attributes.getValue(i));
} else if ((attrLocalName.startsWith("xmlns:") || attrLocalName.equals("xmlns"))
&& value.equals(Constants.S_XSLNAMESPACEURL)) {
// ignore
} else {
lreAttrs.addAttribute(
attrUri,
attrLocalName,
attributes.getQName(i),
attributes.getType(i),
attributes.getValue(i));
}
}
attributes = lreAttrs;
// Set properties from the attributes, but don't throw
// an error if there is an attribute defined that is not
// allowed on a stylesheet.
try {
stylesheetProcessor.setPropertiesFromAttributes(
handler, "stylesheet", stylesheetAttrs, stylesheet);
} catch (Exception e) {
// This is pretty ugly, but it will have to do for now.
// This is just trying to append some text specifying that
// this error came from a missing or invalid XSLT namespace
// declaration.
// If someone comes up with a better solution, please feel
// free to contribute it. -mm
if (stylesheet.getDeclaredPrefixes() == null || !declaredXSLNS(stylesheet)) {
throw new org.xml.sax.SAXException(
XSLMessages.createWarning(XSLTErrorResources.WG_OLD_XSLT_NS, null));
} else {
throw new org.xml.sax.SAXException(e);
}
}
handler.pushElemTemplateElement(stylesheet);
ElemTemplate template = new ElemTemplate();
if (slocator != null) template.setLocaterInfo(slocator);
appendAndPush(handler, template);
XPath rootMatch =
new XPath(
"/",
stylesheet,
stylesheet,
XPath.MATCH,
handler.getStylesheetProcessor().getErrorListener());
template.setMatch(rootMatch);
// template.setDOMBackPointer(handler.getOriginatingNode());
stylesheet.setTemplate(template);
p = handler.getElemTemplateElement();
excludeXSLDecl = true;
}
XSLTElementDef def = getElemDef();
Class classObject = def.getClassObject();
boolean isExtension = false;
boolean isComponentDecl = false;
boolean isUnknownTopLevel = false;
while (null != p) {
// System.out.println("Checking: "+p);
if (p instanceof ElemLiteralResult) {
ElemLiteralResult parentElem = (ElemLiteralResult) p;
isExtension = parentElem.containsExtensionElementURI(uri);
} else if (p instanceof Stylesheet) {
Stylesheet parentElem = (Stylesheet) p;
isExtension = parentElem.containsExtensionElementURI(uri);
if ((false == isExtension)
&& (null != uri)
&& (uri.equals(Constants.S_BUILTIN_EXTENSIONS_URL)
|| uri.equals(Constants.S_BUILTIN_OLD_EXTENSIONS_URL))) {
isComponentDecl = true;
} else {
isUnknownTopLevel = true;
}
}
if (isExtension) break;
p = p.getParentElem();
}
ElemTemplateElement elem = null;
try {
if (isExtension) {
// System.out.println("Creating extension(1): "+uri);
elem = new ElemExtensionCall();
} else if (isComponentDecl) {
elem = (ElemTemplateElement) classObject.newInstance();
} else if (isUnknownTopLevel) {
// TBD: Investigate, not sure about this. -sb
elem = (ElemTemplateElement) classObject.newInstance();
} else {
elem = (ElemTemplateElement) classObject.newInstance();
}
elem.setDOMBackPointer(handler.getOriginatingNode());
elem.setLocaterInfo(handler.getLocator());
elem.setPrefixes(handler.getNamespaceSupport(), excludeXSLDecl);
if (elem instanceof ElemLiteralResult) {
((ElemLiteralResult) elem).setNamespace(uri);
((ElemLiteralResult) elem).setLocalName(localName);
((ElemLiteralResult) elem).setRawName(rawName);
((ElemLiteralResult) elem).setIsLiteralResultAsStylesheet(isLREAsStyleSheet);
}
} catch (InstantiationException ie) {
handler.error(
XSLTErrorResources.ER_FAILED_CREATING_ELEMLITRSLT,
null,
ie); // "Failed creating ElemLiteralResult instance!", ie);
} catch (IllegalAccessException iae) {
handler.error(
XSLTErrorResources.ER_FAILED_CREATING_ELEMLITRSLT,
null,
iae); // "Failed creating ElemLiteralResult instance!", iae);
}
setPropertiesFromAttributes(handler, rawName, attributes, elem);
// bit of a hack here...
if (!isExtension && (elem instanceof ElemLiteralResult)) {
isExtension = ((ElemLiteralResult) elem).containsExtensionElementURI(uri);
if (isExtension) {
// System.out.println("Creating extension(2): "+uri);
elem = new ElemExtensionCall();
elem.setLocaterInfo(handler.getLocator());
elem.setPrefixes(handler.getNamespaceSupport());
((ElemLiteralResult) elem).setNamespace(uri);
((ElemLiteralResult) elem).setLocalName(localName);
((ElemLiteralResult) elem).setRawName(rawName);
setPropertiesFromAttributes(handler, rawName, attributes, elem);
}
}
appendAndPush(handler, elem);
} catch (TransformerException te) {
throw new org.xml.sax.SAXException(te);
}
}