/**
* Get the XObject representation of the variable.
*
* @param transformer non-null reference to the the current transform-time state.
* @param sourceNode non-null reference to the <a
* href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>.
* @return the XObject representation of the variable.
* @throws javax.xml.transform.TransformerException
*/
public XObject getValue(TransformerImpl transformer, int sourceNode) throws TransformerException {
XObject var;
XPathContext xctxt = transformer.getXPathContext();
xctxt.pushCurrentNode(sourceNode);
try {
if (null != m_selectPattern) {
var = m_selectPattern.execute(xctxt, sourceNode, this);
var.allowDetachToRelease(false);
if (transformer.getDebug())
transformer
.getTraceManager()
.fireSelectedEvent(sourceNode, this, "select", m_selectPattern, var);
} else if (null == getFirstChildElem()) {
var = XString.EMPTYSTRING;
} else {
// Use result tree fragment.
// Global variables may be deferred (see XUnresolvedVariable) and hence
// need to be assigned to a different set of DTMs than local variables
// so they aren't popped off the stack on return from a template.
int df;
// Bugzilla 7118: A variable set via an RTF may create local
// variables during that computation. To keep them from overwriting
// variables at this level, push a new variable stack.
////// PROBLEM: This is provoking a variable-used-before-set
////// problem in parameters. Needs more study.
try {
////////// xctxt.getVarStack().link(0);
if (m_parentNode instanceof Stylesheet) // Global variable
df = transformer.transformToGlobalRTF(this);
else df = transformer.transformToRTF(this);
} finally {
////////////// xctxt.getVarStack().unlink();
}
var = new XRTreeFrag(df, xctxt, this);
}
} finally {
xctxt.popCurrentNode();
}
return var;
}
/**
* Send a message to diagnostics. The xsl:message instruction sends a message in a way that is
* dependent on the XSLT transformer. The content of the xsl:message instruction is a template.
* The xsl:message is instantiated by instantiating the content to create an XML fragment. This
* XML fragment is the content of the message.
*
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
String data = transformer.transformToString(this);
transformer.getMsgMgr().message(this, data, m_terminate);
if (m_terminate)
transformer
.getErrorListener()
.fatalError(
new TransformerException(
XSLMessages.createMessage(
XSLTErrorResources.ER_STYLESHEET_DIRECTED_TERMINATION,
null))); // "Stylesheet directed termination"));
}
/**
* Apply the context node to the matching templates.
*
* @see <a
* href="http://www.w3.org/TR/xslt#section-Applying-Template-Rules">section-Applying-Template-Rules
* in XSLT Specification</a>
* @param transformer non-null reference to the the current transform-time state.
* @param sourceNode non-null reference to the <a
* href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>.
* @param mode reference, which may be null, to the <a
* href="http://www.w3.org/TR/xslt#modes">current mode</a>.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
transformer.pushCurrentTemplateRuleIsNull(false);
boolean pushMode = false;
try {
// %REVIEW% Do we need this check??
// if (null != sourceNode)
// {
// boolean needToTurnOffInfiniteLoopCheck = false;
QName mode = transformer.getMode();
if (!m_isDefaultTemplate) {
if (((null == mode) && (null != m_mode)) || ((null != mode) && !mode.equals(m_mode))) {
pushMode = true;
transformer.pushMode(m_mode);
}
}
if (TransformerImpl.S_DEBUG) transformer.getTraceManager().fireTraceEvent(this);
transformSelectedNodes(transformer);
} finally {
if (TransformerImpl.S_DEBUG) transformer.getTraceManager().fireTraceEndEvent(this);
if (pushMode) transformer.popMode();
transformer.popCurrentTemplateRuleIsNull();
}
}
/* 17: */
/* 18: */ private void executeFallbacks(TransformerImpl transformer)
/* 19: */ throws TransformerException
/* 20: */ {
/* 21: 60 */ for (ElemTemplateElement child = this.m_firstChild;
child != null;
child = child.m_nextSibling) {
/* 22: 63 */ if (child.getXSLToken() == 57) {
/* 23: */ try
/* 24: */ {
/* 25: 67 */ transformer.pushElemTemplateElement(child);
/* 26: 68 */ ((ElemFallback) child).executeFallback(transformer);
/* 27: */ }
/* 28: */ finally
/* 29: */ {
/* 30: 72 */ transformer.popElemTemplateElement();
/* 31: */ }
/* 32: */ }
/* 33: */ }
/* 34: */ }
/* 45: */
/* 46: */ public void execute(TransformerImpl transformer)
/* 47: */ throws TransformerException
/* 48: */ {
/* 49:110 */ if (transformer.getDebug()) {
/* 50:111 */ transformer.getTraceManager().fireTraceEvent(this);
/* 51: */ }
/* 52: */ try
/* 53: */ {
/* 54:115 */ if (hasFallbackChildren()) {
/* 55:116 */ executeFallbacks(transformer);
/* 56: */ }
/* 57: */ }
/* 58: */ catch (TransformerException e)
/* 59: */ {
/* 60:122 */ transformer.getErrorListener().fatalError(e);
/* 61: */ }
/* 62:124 */ if (transformer.getDebug()) {
/* 63:125 */ transformer.getTraceManager().fireTraceEndEvent(this);
/* 64: */ }
/* 65: */ }
/**
* Apply a set of attributes to the element.
*
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
if (transformer.isRecursiveAttrSet(this)) {
throw new TransformerException(
XSLMessages.createMessage(
XSLTErrorResources.ER_XSLATTRSET_USED_ITSELF,
new Object[] {m_qname.getLocalPart()})); // "xsl:attribute-set '"+m_qname.m_localpart+
}
transformer.pushElemAttributeSet(this);
super.execute(transformer);
ElemAttribute attr = (ElemAttribute) getFirstChildElem();
while (null != attr) {
attr.execute(transformer);
attr = (ElemAttribute) attr.getNextSiblingElem();
}
transformer.popElemAttributeSet();
}
/**
* Execute the xsl:for-each transformation
*
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
transformer.pushCurrentTemplateRuleIsNull(true);
if (transformer.getDebug())
transformer.getTraceManager().fireTraceEvent(this); // trigger for-each element event
try {
transformSelectedNodes(transformer);
} finally {
if (transformer.getDebug()) transformer.getTraceManager().fireTraceEndEvent(this);
transformer.popCurrentTemplateRuleIsNull();
}
}
/**
* Execute a variable declaration and push it onto the variable stack.
*
* @see <a href="http://www.w3.org/TR/xslt#variables">variables in XSLT Specification</a>
* @param transformer non-null reference to the the current transform-time state.
* @throws javax.xml.transform.TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
if (transformer.getDebug()) transformer.getTraceManager().fireTraceEvent(this);
int sourceNode = transformer.getXPathContext().getCurrentNode();
XObject var = getValue(transformer, sourceNode);
// transformer.getXPathContext().getVarStack().pushVariable(m_qname, var);
transformer.getXPathContext().getVarStack().setLocalVariable(m_index, var);
if (transformer.getDebug()) transformer.getTraceManager().fireTraceEndEvent(this);
}
/**
* Send startPrefixMapping events to the result tree handler for all declared prefix mappings in
* the stylesheet.
*
* @param transformer non-null reference to the the current transform-time state.
* @param ignorePrefix string prefix to not startPrefixMapping
* @throws TransformerException
*/
void executeNSDecls(TransformerImpl transformer, String ignorePrefix)
throws TransformerException {
try {
if (null != m_prefixTable) {
SerializationHandler rhandler = transformer.getResultTreeHandler();
int n = m_prefixTable.size();
for (int i = n - 1; i >= 0; i--) {
XMLNSDecl decl = (XMLNSDecl) m_prefixTable.elementAt(i);
if (!decl.getIsExcluded()
&& !(null != ignorePrefix && decl.getPrefix().equals(ignorePrefix))) {
rhandler.startPrefixMapping(decl.getPrefix(), decl.getURI(), true);
}
}
}
} catch (org.xml.sax.SAXException se) {
throw new TransformerException(se);
}
}
/**
* Execute the xsl:comment transformation
*
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
if (transformer.getDebug()) transformer.getTraceManager().fireTraceEvent(this);
try {
// Note the content model is:
// <!ENTITY % instructions "
// %char-instructions;
// | xsl:processing-instruction
// | xsl:comment
// | xsl:element
// | xsl:attribute
// ">
String data = transformer.transformToString(this);
transformer.getResultTreeHandler().comment(data);
} catch (org.xml.sax.SAXException se) {
throw new TransformerException(se);
} finally {
if (transformer.getDebug()) transformer.getTraceManager().fireTraceEndEvent(this);
}
}
/**
* Perform a query if needed, and call transformNode for each child.
*
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException Thrown in a variety of circumstances.
* @xsl.usage advanced
*/
public void transformSelectedNodes(TransformerImpl transformer) throws TransformerException {
final XPathContext xctxt = transformer.getXPathContext();
final int sourceNode = xctxt.getCurrentNode();
DTMIterator sourceNodes = m_selectExpression.asIterator(xctxt, sourceNode);
try {
final Vector keys =
(m_sortElems == null) ? null : transformer.processSortKeys(this, sourceNode);
// Sort if we need to.
if (null != keys) sourceNodes = sortNodes(xctxt, keys, sourceNodes);
if (transformer.getDebug()) {
// The original code, which is broken for bug#16889,
// which fails to get the original select expression in the select event.
/* transformer.getTraceManager().fireSelectedEvent(
* sourceNode,
* this,
* "select",
* new XPath(m_selectExpression),
* new org.apache.xpath.objects.XNodeSet(sourceNodes));
*/
// The following code fixes bug#16889
// Solution: Store away XPath in setSelect(Xath), and use it here.
// Pass m_xath, which the current node is associated with, onto the TraceManager.
Expression expr = m_xpath.getExpression();
org.apache.xpath.objects.XObject xObject = expr.execute(xctxt);
int current = xctxt.getCurrentNode();
transformer.getTraceManager().fireSelectedEvent(current, this, "select", m_xpath, xObject);
}
xctxt.pushCurrentNode(DTM.NULL);
IntStack currentNodes = xctxt.getCurrentNodeStack();
xctxt.pushCurrentExpressionNode(DTM.NULL);
IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();
xctxt.pushSAXLocatorNull();
xctxt.pushContextNodeList(sourceNodes);
transformer.pushElemTemplateElement(null);
// pushParams(transformer, xctxt);
// Should be able to get this from the iterator but there must be a bug.
DTM dtm = xctxt.getDTM(sourceNode);
int docID = sourceNode & DTMManager.IDENT_DTM_DEFAULT;
int child;
while (DTM.NULL != (child = sourceNodes.nextNode())) {
currentNodes.setTop(child);
currentExpressionNodes.setTop(child);
if ((child & DTMManager.IDENT_DTM_DEFAULT) != docID) {
dtm = xctxt.getDTM(child);
docID = child & DTMManager.IDENT_DTM_DEFAULT;
}
// final int exNodeType = dtm.getExpandedTypeID(child);
final int nodeType = dtm.getNodeType(child);
// Fire a trace event for the template.
if (transformer.getDebug()) {
transformer.getTraceManager().fireTraceEvent(this);
}
// And execute the child templates.
// Loop through the children of the template, calling execute on
// each of them.
for (ElemTemplateElement t = this.m_firstChild; t != null; t = t.m_nextSibling) {
xctxt.setSAXLocator(t);
transformer.setCurrentElement(t);
t.execute(transformer);
}
if (transformer.getDebug()) {
// We need to make sure an old current element is not
// on the stack. See TransformerImpl#getElementCallstack.
transformer.setCurrentElement(null);
transformer.getTraceManager().fireTraceEndEvent(this);
}
// KLUGE: Implement <?xalan:doc_cache_off?>
// ASSUMPTION: This will be set only when the XPath was indeed
// a call to the Document() function. Calling it in other
// situations is likely to fry Xalan.
//
// %REVIEW% We need a MUCH cleaner solution -- one that will
// handle cleaning up after document() and getDTM() in other
// contexts. The whole SourceTreeManager mechanism should probably
// be moved into DTMManager rather than being explicitly invoked in
// FuncDocument and here.
if (m_doc_cache_off) {
if (DEBUG)
System.out.println(
"JJK***** CACHE RELEASE *****\n" + "\tdtm=" + dtm.getDocumentBaseURI());
// NOTE: This will work because this is _NOT_ a shared DTM, and thus has
// only a single Document node. If it could ever be an RTF or other
// shared DTM, this would require substantial rework.
xctxt.getSourceTreeManager().removeDocumentFromCache(dtm.getDocument());
xctxt.release(dtm, false);
}
}
} finally {
if (transformer.getDebug())
transformer
.getTraceManager()
.fireSelectedEndEvent(
sourceNode,
this,
"select",
new XPath(m_selectExpression),
new org.apache.xpath.objects.XNodeSet(sourceNodes));
xctxt.popSAXLocator();
xctxt.popContextNodeList();
transformer.popElemTemplateElement();
xctxt.popCurrentExpressionNode();
xctxt.popCurrentNode();
sourceNodes.detach();
}
}
/**
* Extension element for piping an XML document through a series of 1 or more transformations.
*
* <pre>Common usage pattern: A stylesheet transforms a listing of documents to be
* transformed into a TOC. For each document in the listing calls the pipeDocument
* extension element to pipe that document through a series of 1 or more stylesheets
* to the desired output document.
*
* Syntax:
* <xsl:stylesheet version="1.0"
* xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
* xmlns:pipe="http://xml.apache.org/xalan/PipeDocument"
* extension-element-prefixes="pipe">
* ...
* <pipe:pipeDocument source="source.xml" target="target.xml">
* <stylesheet href="ss1.xsl">
* <param name="param1" value="value1"/>
* </stylesheet>
* <stylesheet href="ss2.xsl">
* <param name="param1" value="value1"/>
* <param name="param2" value="value2"/>
* </stylesheet>
* <stylesheet href="ss1.xsl"/>
* </pipe:pipeDocument>
*
* Notes:</pre>
*
* <ul>
* <li>The base URI for the source attribute is the XML "listing" document.
* <li/>
* <li>The target attribute is taken as is (base is the current user directory).
* <li/>
* <li>The stylsheet containg the extension element is the base URI for the stylesheet hrefs.
* <li/>
* </ul>
*/
public void pipeDocument(XSLProcessorContext context, ElemExtensionCall elem)
throws TransformerException, TransformerConfigurationException, SAXException, IOException,
FileNotFoundException {
SAXTransformerFactory saxTFactory = (SAXTransformerFactory) TransformerFactory.newInstance();
// XML doc to transform.
String source = elem.getAttribute("source", context.getContextNode(), context.getTransformer());
TransformerImpl transImpl = context.getTransformer();
// Base URI for input doc, so base for relative URI to XML doc to transform.
String baseURLOfSource = transImpl.getBaseURLOfSource();
// Absolute URI for XML doc to transform.
String absSourceURL = SystemIDResolver.getAbsoluteURI(source, baseURLOfSource);
// Transformation target
String target = elem.getAttribute("target", context.getContextNode(), context.getTransformer());
XPathContext xctxt = context.getTransformer().getXPathContext();
int xt = xctxt.getDTMHandleFromNode(context.getContextNode());
// Get System Id for stylesheet; to be used to resolve URIs to other stylesheets.
String sysId = elem.getSystemId();
NodeList ssNodes = null;
NodeList paramNodes = null;
Node ssNode = null;
Node paramNode = null;
if (elem.hasChildNodes()) {
ssNodes = elem.getChildNodes();
// Vector to contain TransformerHandler for each stylesheet.
Vector vTHandler = new Vector(ssNodes.getLength());
// The child nodes of an extension element node are instances of
// ElemLiteralResult, which requires does not fully support the standard
// Node interface. Accordingly, some special handling is required (see below)
// to get attribute values.
for (int i = 0; i < ssNodes.getLength(); i++) {
ssNode = ssNodes.item(i);
if (ssNode.getNodeType() == Node.ELEMENT_NODE
&& ((Element) ssNode).getTagName().equals("stylesheet")
&& ssNode instanceof ElemLiteralResult) {
AVT avt = ((ElemLiteralResult) ssNode).getLiteralResultAttribute("href");
String href = avt.evaluate(xctxt, xt, elem);
String absURI = SystemIDResolver.getAbsoluteURI(href, sysId);
Templates tmpl = saxTFactory.newTemplates(new StreamSource(absURI));
TransformerHandler tHandler = saxTFactory.newTransformerHandler(tmpl);
Transformer trans = tHandler.getTransformer();
// AddTransformerHandler to vector
vTHandler.addElement(tHandler);
paramNodes = ssNode.getChildNodes();
for (int j = 0; j < paramNodes.getLength(); j++) {
paramNode = paramNodes.item(j);
if (paramNode.getNodeType() == Node.ELEMENT_NODE
&& ((Element) paramNode).getTagName().equals("param")
&& paramNode instanceof ElemLiteralResult) {
avt = ((ElemLiteralResult) paramNode).getLiteralResultAttribute("name");
String pName = avt.evaluate(xctxt, xt, elem);
avt = ((ElemLiteralResult) paramNode).getLiteralResultAttribute("value");
String pValue = avt.evaluate(xctxt, xt, elem);
trans.setParameter(pName, pValue);
}
}
}
}
usePipe(vTHandler, absSourceURL, target);
}
}
/**
* Copy a Literal Result Element into the Result tree, copy the non-excluded namespace attributes,
* copy the attributes not of the XSLT namespace, and execute the children of the LRE.
*
* @see <a href="http://www.w3.org/TR/xslt#literal-result-element">literal-result-element in XSLT
* Specification</a>
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
SerializationHandler rhandler = transformer.getSerializationHandler();
try {
// JJK Bugzilla 3464, test namespace85 -- make sure LRE's
// namespace is asserted even if default, since xsl:element
// may have changed the context.
rhandler.startPrefixMapping(getPrefix(), getNamespace());
// Add namespace declarations.
executeNSDecls(transformer);
rhandler.startElement(getNamespace(), getLocalName(), getRawName());
} catch (SAXException se) {
throw new TransformerException(se);
}
/*
* If we make it to here we have done a successful startElement()
* we will do an endElement() call for balance, no matter what happens
* in the middle.
*/
// tException remembers if we had an exception "in the middle"
TransformerException tException = null;
try {
// Process any possible attributes from xsl:use-attribute-sets first
super.execute(transformer);
// xsl:version, excludeResultPrefixes???
// Process the list of avts next
if (null != m_avts) {
int nAttrs = m_avts.size();
for (int i = (nAttrs - 1); i >= 0; i--) {
AVT avt = (AVT) m_avts.get(i);
XPathContext xctxt = transformer.getXPathContext();
int sourceNode = xctxt.getCurrentNode();
String stringedValue = avt.evaluate(xctxt, sourceNode, this);
if (null != stringedValue) {
// Important Note: I'm not going to check for excluded namespace
// prefixes here. It seems like it's too expensive, and I'm not
// even sure this is right. But I could be wrong, so this needs
// to be tested against other implementations.
rhandler.addAttribute(
avt.getURI(), avt.getName(), avt.getRawName(), "CDATA", stringedValue, false);
}
} // end for
}
// Now process all the elements in this subtree
// TODO: Process m_extensionElementPrefixes && m_attributeSetsNames
transformer.executeChildTemplates(this, true);
} catch (TransformerException te) {
// thrown in finally to prevent original exception consumed by subsequent exceptions
tException = te;
} catch (SAXException se) {
tException = new TransformerException(se);
}
try {
/* we need to do this endElement() to balance the
* successful startElement() call even if
* there was an exception in the middle.
* Otherwise an exception in the middle could cause a system to hang.
*/
rhandler.endElement(getNamespace(), getLocalName(), getRawName());
} catch (SAXException se) {
/* we did call endElement(). If thee was an exception
* in the middle throw that one, otherwise if there
* was an exception from endElement() throw that one.
*/
if (tException != null) throw tException;
else throw new TransformerException(se);
}
/* If an exception was thrown in the middle but not with startElement() or
* or endElement() then its time to let it percolate.
*/
if (tException != null) throw tException;
unexecuteNSDecls(transformer);
// JJK Bugzilla 3464, test namespace85 -- balance explicit start.
try {
rhandler.endPrefixMapping(getPrefix());
} catch (SAXException se) {
throw new TransformerException(se);
}
}
/**
* Execute the function. The function must return a valid object.
*
* @param xctxt The current execution context.
* @return A valid XObject.
* @throws javax.xml.transform.TransformerException
*/
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException {
// TransformerImpl transformer = (TransformerImpl)xctxt;
TransformerImpl transformer = (TransformerImpl) xctxt.getOwnerObject();
XNodeSet nodes = null;
int context = xctxt.getCurrentNode();
DTM dtm = xctxt.getDTM(context);
int docContext = dtm.getDocumentRoot(context);
if (DTM.NULL == docContext) {
// path.error(context, XPATHErrorResources.ER_CONTEXT_HAS_NO_OWNERDOC); //"context does not
// have an owner document!");
}
String xkeyname = getArg0().execute(xctxt).str();
QName keyname = new QName(xkeyname, xctxt.getNamespaceContext());
XObject arg = getArg1().execute(xctxt);
boolean argIsNodeSetDTM = (XObject.CLASS_NODESET == arg.getType());
KeyManager kmgr = transformer.getKeyManager();
// Don't bother with nodeset logic if the thing is only one node.
if (argIsNodeSetDTM) {
XNodeSet ns = (XNodeSet) arg;
ns.setShouldCacheNodes(true);
int len = ns.getLength();
if (len <= 1) argIsNodeSetDTM = false;
}
if (argIsNodeSetDTM) {
Hashtable usedrefs = null;
DTMIterator ni = arg.iter();
int pos;
UnionPathIterator upi = new UnionPathIterator();
upi.exprSetParent(this);
while (DTM.NULL != (pos = ni.nextNode())) {
dtm = xctxt.getDTM(pos);
XMLString ref = dtm.getStringValue(pos);
if (null == ref) continue;
if (null == usedrefs) usedrefs = new Hashtable();
if (usedrefs.get(ref) != null) {
continue; // We already have 'em.
} else {
// ISTRUE being used as a dummy value.
usedrefs.put(ref, ISTRUE);
}
XNodeSet nl =
kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref, xctxt.getNamespaceContext());
nl.setRoot(xctxt.getCurrentNode(), xctxt);
// try
// {
upi.addIterator(nl);
// }
// catch(CloneNotSupportedException cnse)
// {
// // will never happen.
// }
// mnodeset.addNodesInDocOrder(nl, xctxt); needed??
}
int current = xctxt.getCurrentNode();
upi.setRoot(current, xctxt);
nodes = new XNodeSet(upi);
} else {
XMLString ref = arg.xstr();
nodes = kmgr.getNodeSetDTMByKey(xctxt, docContext, keyname, ref, xctxt.getNamespaceContext());
nodes.setRoot(xctxt.getCurrentNode(), xctxt);
}
return nodes;
}
/**
* <meta name="usage" content="advanced"/> Perform a query if needed, and call transformNode for
* each child.
*
* @param transformer non-null reference to the the current transform-time state.
* @param template The owning template context.
* @throws TransformerException Thrown in a variety of circumstances.
*/
public void transformSelectedNodes(TransformerImpl transformer) throws TransformerException {
final XPathContext xctxt = transformer.getXPathContext();
final int sourceNode = xctxt.getCurrentNode();
DTMIterator sourceNodes = m_selectExpression.asIterator(xctxt, sourceNode);
VariableStack vars = xctxt.getVarStack();
int nParams = getParamElemCount();
int thisframe = vars.getStackFrame();
StackGuard guard = transformer.getStackGuard();
boolean check = (guard.getRecursionLimit() > -1) ? true : false;
try {
final Vector keys =
(m_sortElems == null) ? null : transformer.processSortKeys(this, sourceNode);
// Sort if we need to.
if (null != keys) sourceNodes = sortNodes(xctxt, keys, sourceNodes);
if (TransformerImpl.S_DEBUG) {
transformer
.getTraceManager()
.fireSelectedEvent(
sourceNode,
this,
"select",
new XPath(m_selectExpression),
new org.apache.xpath.objects.XNodeSet(sourceNodes));
}
final ResultTreeHandler rth = transformer.getResultTreeHandler();
ContentHandler chandler = rth.getContentHandler();
final StylesheetRoot sroot = transformer.getStylesheet();
final TemplateList tl = sroot.getTemplateListComposed();
final boolean quiet = transformer.getQuietConflictWarnings();
// Should be able to get this from the iterator but there must be a bug.
DTM dtm = xctxt.getDTM(sourceNode);
int argsFrame = -1;
if (nParams > 0) {
// This code will create a section on the stack that is all the
// evaluated arguments. These will be copied into the real params
// section of each called template.
argsFrame = vars.link(nParams);
vars.setStackFrame(thisframe);
for (int i = 0; i < nParams; i++) {
ElemWithParam ewp = m_paramElems[i];
XObject obj = ewp.getValue(transformer, sourceNode);
vars.setLocalVariable(i, obj, argsFrame);
}
vars.setStackFrame(argsFrame);
}
xctxt.pushCurrentNode(DTM.NULL);
IntStack currentNodes = xctxt.getCurrentNodeStack();
xctxt.pushCurrentExpressionNode(DTM.NULL);
IntStack currentExpressionNodes = xctxt.getCurrentExpressionNodeStack();
xctxt.pushSAXLocatorNull();
xctxt.pushContextNodeList(sourceNodes);
transformer.pushElemTemplateElement(null);
// pushParams(transformer, xctxt);
int child;
while (DTM.NULL != (child = sourceNodes.nextNode())) {
currentNodes.setTop(child);
currentExpressionNodes.setTop(child);
if (xctxt.getDTM(child) != dtm) {
dtm = xctxt.getDTM(child);
}
final int exNodeType = dtm.getExpandedTypeID(child);
final int nodeType = dtm.getNodeType(child);
final QName mode = transformer.getMode();
ElemTemplate template = tl.getTemplateFast(xctxt, child, exNodeType, mode, -1, quiet, dtm);
// If that didn't locate a node, fall back to a default template rule.
// See http://www.w3.org/TR/xslt#built-in-rule.
if (null == template) {
switch (nodeType) {
case DTM.DOCUMENT_FRAGMENT_NODE:
case DTM.ELEMENT_NODE:
template = sroot.getDefaultRule();
// %OPT% direct faster?
break;
case DTM.ATTRIBUTE_NODE:
case DTM.CDATA_SECTION_NODE:
case DTM.TEXT_NODE:
// if(rth.m_elemIsPending || rth.m_docPending)
// rth.flushPending(true);
transformer.pushPairCurrentMatched(sroot.getDefaultTextRule(), child);
transformer.setCurrentElement(sroot.getDefaultTextRule());
// dtm.dispatchCharactersEvents(child, chandler, false);
dtm.dispatchCharactersEvents(child, rth, false);
transformer.popCurrentMatched();
continue;
case DTM.DOCUMENT_NODE:
template = sroot.getDefaultRootRule();
break;
default:
// No default rules for processing instructions and the like.
continue;
}
} else {
transformer.setCurrentElement(template);
}
transformer.pushPairCurrentMatched(template, child);
if (check) guard.checkForInfinateLoop();
int currentFrameBottom; // See comment with unlink, below
if (template.m_frameSize > 0) {
xctxt.pushRTFContext();
currentFrameBottom = vars.getStackFrame(); // See comment with unlink, below
vars.link(template.m_frameSize);
// You can't do the check for nParams here, otherwise the
// xsl:params might not be nulled.
if (
/* nParams > 0 && */ template.m_inArgsSize > 0) {
int paramIndex = 0;
for (ElemTemplateElement elem = template.getFirstChildElem();
null != elem;
elem = elem.getNextSiblingElem()) {
if (Constants.ELEMNAME_PARAMVARIABLE == elem.getXSLToken()) {
ElemParam ep = (ElemParam) elem;
int i;
for (i = 0; i < nParams; i++) {
ElemWithParam ewp = m_paramElems[i];
if (ewp.m_qnameID == ep.m_qnameID) {
XObject obj = vars.getLocalVariable(i, argsFrame);
vars.setLocalVariable(paramIndex, obj);
break;
}
}
if (i == nParams) vars.setLocalVariable(paramIndex, null);
} else break;
paramIndex++;
}
}
} else currentFrameBottom = 0;
// Fire a trace event for the template.
if (TransformerImpl.S_DEBUG) transformer.getTraceManager().fireTraceEvent(template);
// And execute the child templates.
// Loop through the children of the template, calling execute on
// each of them.
for (ElemTemplateElement t = template.m_firstChild; t != null; t = t.m_nextSibling) {
xctxt.setSAXLocator(t);
try {
transformer.pushElemTemplateElement(t);
t.execute(transformer);
} finally {
transformer.popElemTemplateElement();
}
}
if (TransformerImpl.S_DEBUG) transformer.getTraceManager().fireTraceEndEvent(template);
if (template.m_frameSize > 0) {
// See Frank Weiss bug around 03/19/2002 (no Bugzilla report yet).
// While unlink will restore to the proper place, the real position
// may have been changed for xsl:with-param, so that variables
// can be accessed.
// of right now.
// More:
// When we entered this function, the current
// frame buffer (cfb) index in the variable stack may
// have been manually set. If we just call
// unlink(), however, it will restore the cfb to the
// previous link index from the link stack, rather than
// the manually set cfb. So,
// the only safe solution is to restore it back
// to the same position it was on entry, since we're
// really not working in a stack context here. (Bug4218)
vars.unlink(currentFrameBottom);
xctxt.popRTFContext();
}
transformer.popCurrentMatched();
} // end while (DTM.NULL != (child = sourceNodes.nextNode()))
} catch (SAXException se) {
transformer.getErrorListener().fatalError(new TransformerException(se));
} finally {
if (TransformerImpl.S_DEBUG)
transformer
.getTraceManager()
.fireSelectedEndEvent(
sourceNode,
this,
"select",
new XPath(m_selectExpression),
new org.apache.xpath.objects.XNodeSet(sourceNodes));
// Unlink to the original stack frame
if (nParams > 0) vars.unlink(thisframe);
xctxt.popSAXLocator();
xctxt.popContextNodeList();
transformer.popElemTemplateElement();
xctxt.popCurrentExpressionNode();
xctxt.popCurrentNode();
sourceNodes.detach();
}
}
/**
* Invoke a named template.
*
* @see <a href="http://www.w3.org/TR/xslt#named-templates">named-templates in XSLT
* Specification</a>
* @param transformer non-null reference to the the current transform-time state.
* @throws TransformerException
*/
public void execute(TransformerImpl transformer) throws TransformerException {
if (null != m_template) {
XPathContext xctxt = transformer.getXPathContext();
VariableStack vars = xctxt.getVarStack();
int thisframe = vars.getStackFrame();
int nextFrame = vars.link(m_template.m_frameSize);
// We have to clear the section of the stack frame that has params
// so that the default param evaluation will work correctly.
if (m_template.m_inArgsSize > 0) {
vars.clearLocalSlots(0, m_template.m_inArgsSize);
if (null != m_paramElems) {
int currentNode = xctxt.getCurrentNode();
vars.setStackFrame(thisframe);
int size = m_paramElems.length;
for (int i = 0; i < size; i++) {
ElemWithParam ewp = m_paramElems[i];
if (ewp.m_index >= 0) {
XObject obj = ewp.getValue(transformer, currentNode);
// Note here that the index for ElemWithParam must have been
// statically made relative to the xsl:template being called,
// NOT this xsl:template.
vars.setLocalVariable(ewp.m_index, obj, nextFrame);
}
}
vars.setStackFrame(nextFrame);
}
}
SourceLocator savedLocator = xctxt.getSAXLocator();
try {
xctxt.setSAXLocator(m_template);
// template.executeChildTemplates(transformer, sourceNode, mode, true);
transformer.pushElemTemplateElement(m_template);
m_template.execute(transformer);
} finally {
transformer.popElemTemplateElement();
xctxt.setSAXLocator(savedLocator);
// When we entered this function, the current
// frame buffer (cfb) index in the variable stack may
// have been manually set. If we just call
// unlink(), however, it will restore the cfb to the
// previous link index from the link stack, rather than
// the manually set cfb. So,
// the only safe solution is to restore it back
// to the same position it was on entry, since we're
// really not working in a stack context here. (Bug4218)
vars.unlink(thisframe);
}
} else {
transformer
.getMsgMgr()
.error(
this,
XSLTErrorResources.ER_TEMPLATE_NOT_FOUND,
new Object[] {
m_templateName
}); // "Could not find template named: '"+templateName+"'");
}
}
