XObjectPtr
FunctionGenerateID::execute(
XPathExecutionContext& executionContext,
XalanNode* /* context */,
const XObjectPtr arg1,
const LocatorType* locator) const
{
assert(arg1.null() == false);
const NodeRefListBase& theNodeList = arg1->nodeset();
if (theNodeList.getLength() == 0)
{
return executionContext.getXObjectFactory().createStringReference(s_emptyString);
}
else
{
return execute(executionContext, theNodeList.item(0), locator);
}
}
void TXFMXPath::evaluateExpr(DOMNode *h, safeBuffer inexpr) {
// Temporarily add any necessary name spaces into the document
XSECXPathNodeList addedNodes;
setXPathNS(document, XPathAtts, addedNodes, formatter, mp_nse);
XPathProcessorImpl xppi; // The processor
XercesParserLiaison xpl;
#if XALAN_VERSION_MAJOR == 1 && XALAN_VERSION_MINOR > 10
XercesDOMSupport xds(xpl);
#else
XercesDOMSupport xds;
#endif
XPathEvaluator xpe;
XPathFactoryDefault xpf;
XPathConstructionContextDefault xpcc;
XalanDocument * xd;
XalanNode * contextNode;
// Xalan can throw exceptions in all functions, so do one broad catch point.
try {
// Map to Xalan
xd = xpl.createDocument(document);
// For performing mapping
XercesDocumentWrapper *xdw = xpl.mapDocumentToWrapper(xd);
XercesWrapperNavigator xwn(xdw);
// Map the "here" node - but only if part of current document
XalanNode * hereNode = NULL;
if (h->getOwnerDocument() == document) {
hereNode = xwn.mapNode(h);
if (hereNode == NULL) {
hereNode = findHereNodeFromXalan(&xwn, xd, h);
if (hereNode == NULL) {
throw XSECException(XSECException::XPathError,
"Unable to find here node in Xalan Wrapper map");
}
}
}
// Now work out what we have to set up in the new processing
TXFMBase::nodeType inputType = input->getNodeType();
XalanDOMString cd; // For the moment assume the root is the context
const XalanDOMChar * cexpr;
safeBuffer contextExpr;
switch (inputType) {
case DOM_NODE_DOCUMENT :
case DOM_NODE_XPATH_NODESET :
// do XPath over the whole document and, if the input was an
// XPath Nodeset, then later intersect the result with the input nodelist
cd = XalanDOMString("/"); // Root node
cexpr = cd.c_str();
// The context node is the "root" node
contextNode =
xpe.selectSingleNode(
xds,
xd,
cexpr,
xd->getDocumentElement());
break;
case DOM_NODE_DOCUMENT_FRAGMENT :
{
// Need to map the DOM_Node that we are given from the input to the appropriate XalanNode
// Create the XPath expression to find the node
if (input->getFragmentId() != NULL) {
contextExpr.sbTranscodeIn("//descendant-or-self::node()[attribute::Id='");
contextExpr.sbXMLChCat(input->getFragmentId());
contextExpr.sbXMLChCat("']");
// Map the node
contextNode =
xpe.selectSingleNode(
xds,
xd,
contextExpr.rawXMLChBuffer(), //XalanDOMString((char *) contextExpr.rawBuffer()).c_str(),
xd->getDocumentElement());
if (contextNode == NULL) {
// Last Ditch
contextNode = xwn.mapNode(input->getFragmentNode());
}
}
else
contextNode = xwn.mapNode(input->getFragmentNode());
if (contextNode == NULL) {
// Something wrong
throw XSECException(XSECException::XPathError, "Error mapping context node");
}
break;
}
default :
throw XSECException(XSECException::XPathError); // Should never get here
}
safeBuffer str;
XPathEnvSupportDefault xpesd;
XObjectFactoryDefault xof;
XPathExecutionContextDefault xpec(xpesd, xds, xof);
ElementPrefixResolverProxy pr(xd->getDocumentElement(), xpesd, xds);
// Work around the fact that the XPath implementation is designed for XSLT, so does
// not allow here() as a NCName.
// THIS IS A KLUDGE AND SHOULD BE DONE BETTER
int offset = 0;
safeBuffer k(KLUDGE_PREFIX);
k.sbStrcatIn(":");
offset = inexpr.sbStrstr("here()");
while (offset >= 0) {
if (offset == 0 || offset == 1 ||
(!(inexpr[offset - 1] == ':' && inexpr[offset - 2] != ':') &&
separator(inexpr[offset - 1]))) {
inexpr.sbStrinsIn(k.rawCharBuffer(), offset);
}
offset = inexpr.sbOffsetStrstr("here()", offset + 11);
}
// Install the External function in the Environment handler
if (hereNode != NULL) {
xpesd.installExternalFunctionLocal(XalanDOMString(URI_ID_DSIG), XalanDOMString("here"), DSIGXPathHere(hereNode));
}
str.sbStrcpyIn("(descendant-or-self::node() | descendant-or-self::node()/attribute::* | descendant-or-self::node()/namespace::*)[");
str.sbStrcatIn(inexpr);
str.sbStrcatIn("]");
XPath * xp = xpf.create();
XalanDOMString Xexpr((char *) str.rawBuffer());
xppi.initXPath(*xp, xpcc, Xexpr, pr);
// Now resolve
XObjectPtr xObj = xp->execute(contextNode, pr, xpec);
// Now map to a list that others can use (naieve list at this time)
const NodeRefListBase& lst = xObj->nodeset();
int size = (int) lst.getLength();
const DOMNode *item;
for (int i = 0; i < size; ++ i) {
if (lst.item(i) == xd)
m_XPathMap.addNode(document);
else {
item = xwn.mapNode(lst.item(i));
m_XPathMap.addNode(item);
}
}
if (inputType == DOM_NODE_XPATH_NODESET) {
//the input list was a XPATH nodeset, so we must intersect the
// results of the XPath processing done above with the input nodeset
m_XPathMap.intersect(input->getXPathNodeList());
}
}
catch (XSLException &e) {
safeBuffer msg;
// Whatever happens - fix any changes to the original document
clearXPathNS(document, addedNodes, formatter, mp_nse);
// Collate the exception message into an XSEC message.
msg.sbTranscodeIn("Xalan Exception : ");
#if defined (XSEC_XSLEXCEPTION_RETURNS_DOMSTRING)
msg.sbXMLChCat(e.getType().c_str());
#else
msg.sbXMLChCat(e.getType());
#endif
msg.sbXMLChCat(" caught. Message : ");
msg.sbXMLChCat(e.getMessage().c_str());
throw XSECException(XSECException::XPathError,
msg.rawXMLChBuffer());
}
clearXPathNS(document, addedNodes, formatter, mp_nse);
}
XSECXPathNodeList * TXFMXPathFilter::evaluateSingleExpr(DSIGXPathFilterExpr *expr) {
// Have a single expression that we wish to find the resultant nodeset
// for
XSECXPathNodeList addedNodes;
setXPathNS(document, expr->mp_NSMap, addedNodes, mp_formatter, mp_nse);
XPathProcessorImpl xppi; // The processor
XercesParserLiaison xpl;
#if XALAN_VERSION_MAJOR == 1 && XALAN_VERSION_MINOR > 10
XercesDOMSupport xds(xpl);
#else
XercesDOMSupport xds;
#endif
XPathEvaluator xpe;
XPathFactoryDefault xpf;
XPathConstructionContextDefault xpcc;
XalanDocument * xd;
XalanNode * contextNode;
// Xalan can throw exceptions in all functions, so do one broad catch point.
try {
// Map to Xalan
xd = xpl.createDocument(document);
// For performing mapping
XercesDocumentWrapper *xdw = xpl.mapDocumentToWrapper(xd);
XercesWrapperNavigator xwn(xdw);
// Map the "here" node
XalanNode * hereNode = NULL;
hereNode = xwn.mapNode(expr->mp_xpathFilterNode);
if (hereNode == NULL) {
hereNode = findHereNodeFromXalan(&xwn, xd, expr->mp_exprTextNode);
if (hereNode == NULL) {
throw XSECException(XSECException::XPathFilterError,
"Unable to find here node in Xalan Wrapper map");
}
}
// Now work out what we have to set up in the new processing
XalanDOMString cd; // For XPath Filter, the root is always the context node
cd = XalanDOMString("/"); // Root node
// The context node is the "root" node
contextNode =
xpe.selectSingleNode(
xds,
xd,
cd.c_str(),
xd->getDocumentElement());
XPathEnvSupportDefault xpesd;
XObjectFactoryDefault xof;
XPathExecutionContextDefault xpec(xpesd, xds, xof);
ElementPrefixResolverProxy pr(xd->getDocumentElement(), xpesd, xds);
// Work around the fact that the XPath implementation is designed for XSLT, so does
// not allow here() as a NCName.
// THIS IS A KLUDGE AND SHOULD BE DONE BETTER
int offset = 0;
safeBuffer k(KLUDGE_PREFIX);
k.sbStrcatIn(":");
// Map the expression into a local code page string (silly - should be XMLCh)
safeBuffer exprSB;
exprSB << (*mp_formatter << expr->m_expr.rawXMLChBuffer());
offset = exprSB.sbStrstr("here()");
while (offset >= 0) {
if (offset == 0 || offset == 1 ||
(!(exprSB[offset - 1] == ':' && exprSB[offset - 2] != ':') &&
separator(exprSB[offset - 1]))) {
exprSB.sbStrinsIn(k.rawCharBuffer(), offset);
}
offset = exprSB.sbOffsetStrstr("here()", offset + 11);
}
// Install the External function in the Environment handler
if (hereNode != NULL) {
xpesd.installExternalFunctionLocal(XalanDOMString(URI_ID_DSIG), XalanDOMString("here"), DSIGXPathHere(hereNode));
}
XPath * xp = xpf.create();
XalanDOMString Xexpr((char *) exprSB.rawBuffer());
xppi.initXPath(*xp, xpcc, Xexpr, pr);
// Now resolve
XObjectPtr xObj = xp->execute(contextNode, pr, xpec);
// Now map to a list that others can use (naieve list at this time)
const NodeRefListBase& lst = xObj->nodeset();
int size = (int) lst.getLength();
const DOMNode *item;
XSECXPathNodeList * ret;
XSECnew(ret, XSECXPathNodeList);
Janitor<XSECXPathNodeList> j_ret(ret);
for (int i = 0; i < size; ++ i) {
if (lst.item(i) == xd)
ret->addNode(document);
else {
item = xwn.mapNode(lst.item(i));
ret->addNode(item);
}
}
xpesd.uninstallExternalFunctionGlobal(XalanDOMString(URI_ID_DSIG), XalanDOMString("here"));
clearXPathNS(document, addedNodes, mp_formatter, mp_nse);
j_ret.release();
return ret;
}
catch (XSLException &e) {
safeBuffer msg;
// Whatever happens - fix any changes to the original document
clearXPathNS(document, addedNodes, mp_formatter, mp_nse);
// Collate the exception message into an XSEC message.
msg.sbTranscodeIn("Xalan Exception : ");
#if defined (XSEC_XSLEXCEPTION_RETURNS_DOMSTRING)
msg.sbXMLChCat(e.getType().c_str());
#else
msg.sbXMLChCat(e.getType());
#endif
msg.sbXMLChCat(" caught. Message : ");
msg.sbXMLChCat(e.getMessage().c_str());
throw XSECException(XSECException::XPathFilterError,
msg.rawXMLChBuffer());
}
catch (...) {
clearXPathNS(document, addedNodes, mp_formatter, mp_nse);
throw;
}
return NULL;
}
bool
TestPredicateResult(
XPathProcessor& theXPathProcessor,
XPathEnvSupport& theXPathEnvSupport,
DOMSupport& theDOMSupport,
XMLParserLiaison& theLiaison,
XPathFactory& theXPathFactory,
const XalanDOMString& theXMLFileURL,
const XalanDOMString& theXSLFileURL,
PrintWriter& thePrintWriter,
XPathExecutionContext& theExecutionContext)
{
bool fError = false;
XalanDocument* const theXMLDocument =
ParseXML(theLiaison,
theXMLFileURL);
MemoryManagerType& theMemoryManager =
theExecutionContext.getMemoryManager();
if (theXMLDocument != 0)
{
XalanDOMString theContextNodeMatchPattern(theMemoryManager);
XalanDOMString theXPathString(theMemoryManager);
if (GetXSLInput(theLiaison,
theXSLFileURL,
theContextNodeMatchPattern,
theXPathString,
theMemoryManager) == true)
{
XalanNode* const theContextNode =
FindContextNode(theXPathProcessor,
theXPathEnvSupport,
theDOMSupport,
theXPathFactory,
theXMLDocument,
theContextNodeMatchPattern,
thePrintWriter,
theExecutionContext);
if (theContextNode != 0)
{
XalanElement* const theNamespaceContext = 0;
ElementPrefixResolverProxy thePrefixResolver(theNamespaceContext, theXPathEnvSupport, theDOMSupport);
NodeRefList theContextNodeList(theMemoryManager);
XPath* const theXPath1 = theXPathFactory.create();
XPathConstructionContextDefault theXPathConstructionContext(theMemoryManager);
XPathGuard theGuard1(theXPathFactory,
theXPath1);
XalanDOMString theResult(theMemoryManager);
theXPathProcessor.initXPath(*theXPath1,
theXPathConstructionContext,
TranscodeFromLocalCodePage("following-sibling::*", theResult),
thePrefixResolver);
XPath* const theXPath2 = theXPathFactory.create();
XPathGuard theGuard2(theXPathFactory,
theXPath2);
theXPathProcessor.initXPath(*theXPath2,
theXPathConstructionContext,
TranscodeFromLocalCodePage("descendant::*", theResult),
thePrefixResolver);
bool fDump = false;
if (fDump == true)
{
thePrintWriter.println();
thePrintWriter.println();
theXPath1->getExpression().dumpOpCodeMap(thePrintWriter);
thePrintWriter.println();
theXPath1->getExpression().dumpTokenQueue(thePrintWriter);
thePrintWriter.println();
thePrintWriter.println();
theXPath2->getExpression().dumpOpCodeMap(thePrintWriter);
thePrintWriter.println();
theXPath2->getExpression().dumpTokenQueue(thePrintWriter);
thePrintWriter.println();
thePrintWriter.println();
}
XalanNode* theContextNode = theXMLDocument->getFirstChild()->getFirstChild();
for( ; theContextNode != 0; theContextNode = theContextNode->getNextSibling())
{
if (theContextNode->getNodeType() != XalanNode::ELEMENT_NODE)
{
continue;
}
const XObjectPtr theResult1 =
theXPath1->execute(theExecutionContext);
try
{
assert(theResult1.null() == false);
const NodeRefListBase& theResultList =
theResult1->nodeset();
const unsigned int theLength = theResultList.getLength();
thePrintWriter.print("theResult1->str() == \"");
thePrintWriter.print(theResult1->str());
thePrintWriter.print("\"");
thePrintWriter.println();
if (theLength > 0)
{
for (unsigned int i = 0; i < theLength; i++)
{
thePrintWriter.print(theResultList.item(i)->getNodeName());
thePrintWriter.println();
}
}
}
catch(...)
{
thePrintWriter.print("Execution of XPath ");
thePrintWriter.print(theXPathString);
thePrintWriter.println(" failed!");
}
const XObjectPtr theResult2 =
theXPath2->execute(theExecutionContext);
try
{
assert(theResult2.null() == false);
const NodeRefListBase& theResultList =
theResult2->nodeset();
const int theLength = theResultList.getLength();
thePrintWriter.print("theResult2->str() == \"");
thePrintWriter.print(theResult2->str());
thePrintWriter.print("\"");
thePrintWriter.println();
if (theLength > 0)
{
for (int i = 0; i < theLength; i++)
{
thePrintWriter.print(theResultList.item(i)->getNodeName());
thePrintWriter.println();
}
}
}
catch(...)
{
thePrintWriter.print("Execution of XPath ");
thePrintWriter.print(theXPathString);
thePrintWriter.println(" failed!");
}
if (theResult1->equals(*theResult2, theExecutionContext) == true)
{
thePrintWriter.print("theResult1 is equal to theResult2");
thePrintWriter.println();
thePrintWriter.print("theContextNode->getNodeName() == \"");
thePrintWriter.print(theContextNode->getNodeName());
thePrintWriter.print("\" theContextNode->getNodeValue() == \"");
thePrintWriter.print(theContextNode->getNodeValue());
thePrintWriter.println("\"");
}
}
}
}
}
return fError;
}
bool
TestAxisResult(
XPathProcessor& theXPathProcessor,
XPathEnvSupport& theXPathEnvSupport,
DOMSupport& theDOMSupport,
XMLParserLiaison& theLiaison,
XPathFactory& theXPathFactory,
const XalanDOMString& theXMLFileURL,
const XalanDOMString& theXSLFileURL,
PrintWriter& thePrintWriter,
XPathExecutionContext& theExecutionContext)
{
bool fError = false;
XalanDocument* const theXMLDocument = ParseXML(theLiaison,
theXMLFileURL);
MemoryManagerType& theMemoryManager =
theExecutionContext.getMemoryManager();
if (theXMLDocument != 0)
{
XalanDOMString theContextNodeMatchPattern(theMemoryManager);
XalanDOMString theXPathString(theMemoryManager);
if (GetXSLInput(theLiaison,
theXSLFileURL,
theContextNodeMatchPattern,
theXPathString,
theMemoryManager) == true)
{
XalanNode* const theContextNode =
FindContextNode(theXPathProcessor,
theXPathEnvSupport,
theDOMSupport,
theXPathFactory,
theXMLDocument,
theContextNodeMatchPattern,
thePrintWriter,
theExecutionContext);
if (theContextNode != 0)
{
XalanElement* const theNamespaceContext = 0;
ElementPrefixResolverProxy thePrefixResolver(theNamespaceContext, theXPathEnvSupport, theDOMSupport);
NodeRefList theContextNodeList(theMemoryManager);
XPath* const theXPath = theXPathFactory.create();
XPathConstructionContextDefault theXPathConstructionContext(theMemoryManager);
XPathGuard theGuard(theXPathFactory,
theXPath);
theXPathProcessor.initXPath(*theXPath,
theXPathConstructionContext,
theXPathString,
thePrefixResolver);
bool fDump = false;
if (fDump == true)
{
thePrintWriter.println();
thePrintWriter.println();
theXPath->getExpression().dumpOpCodeMap(thePrintWriter);
thePrintWriter.println();
theXPath->getExpression().dumpTokenQueue(thePrintWriter);
thePrintWriter.println();
thePrintWriter.println();
}
const XObjectPtr theResult =
theXPath->execute(theContextNode, thePrefixResolver, theContextNodeList, theExecutionContext);
try
{
assert(theResult.null() == false);
const NodeRefListBase& theResultList =
theResult->nodeset();
const unsigned int theLength = theResultList.getLength();
if (theLength == 0)
{
thePrintWriter.println("<out/>");
}
else
{
thePrintWriter.print("<out>");
for (unsigned int i = 0; i < theLength; i++)
{
thePrintWriter.print(theResultList.item(i)->getNodeName());
thePrintWriter.print(" ");
}
thePrintWriter.println("</out>");
}
}
catch(...)
{
thePrintWriter.print("Execution of XPath ");
thePrintWriter.print(theXPathString);
thePrintWriter.println(" failed!");
}
}
}
}
theLiaison.reset();
return fError;
}
XalanNode*
FindContextNode(
XPathProcessor& theXPathProcessor,
XPathEnvSupport& theXPathEnvSupport,
DOMSupport& theDOMSupport,
XPathFactory& theXPathFactory,
XalanDocument* theDocument,
const XalanDOMString& theContextNodeMatchPattern,
PrintWriter& thePrintWriter,
XPathExecutionContext& theExecutionContext)
{
XalanNode* theResult = 0;
MemoryManagerType& theMemoryManager =
theExecutionContext.getMemoryManager();
XPath* const theXPath = theXPathFactory.create();
XPathConstructionContextDefault theXPathConstructionContext;
XPathGuard theGuard(
theXPathFactory,
theXPath);
XalanElement* theNamespaceContext = 0;
ElementPrefixResolverProxy thePrefixResolver(theNamespaceContext, theXPathEnvSupport, theDOMSupport);
NodeRefList theContextNodeList(theMemoryManager);
const XObjectPtr theXObject =
ExecuteXPath(
theXPathProcessor,
theXPathConstructionContext,
*theXPath,
theContextNodeMatchPattern,
theDocument,
thePrefixResolver,
theContextNodeList,
theExecutionContext);
try
{
assert(theXObject.null() == false);
const NodeRefListBase& theResultList =
theXObject->nodeset();
if (theResultList.getLength() == 0)
{
thePrintWriter.print("FindContextNode: Unable to find context node using select \"");
thePrintWriter.print(theContextNodeMatchPattern);
thePrintWriter.println("\".");
thePrintWriter.println("FindContextNode: No nodes matched the pattern.");
}
else if (theResultList.getLength() != 1)
{
thePrintWriter.print("FindContextNode: Unable to find context node using select \"");
thePrintWriter.print(theContextNodeMatchPattern);
thePrintWriter.println("\".");
thePrintWriter.println("FindContextNode: More than one node matched the pattern.");
}
else
{
theResult = theResultList.item(0);
}
}
catch(...)
{
thePrintWriter.print("FindContextNode: Error executing match pattern \"");
thePrintWriter.print(theContextNodeMatchPattern);
thePrintWriter.println("\".");
}
return theResult;
}
void
ElemForEach::selectAndSortChildren(
StylesheetExecutionContext& executionContext,
const ElemTemplateElement* theTemplate,
NodeSorter* sorter,
int selectStackFrameIndex) const
{
typedef StylesheetExecutionContext::SetAndRestoreCurrentStackFrameIndex SetAndRestoreCurrentStackFrameIndex;
assert(m_selectPattern != 0);
typedef XPathExecutionContext::BorrowReturnMutableNodeRefList BorrowReturnMutableNodeRefList;
BorrowReturnMutableNodeRefList theGuard(executionContext);
const NodeRefListBase* sourceNodes = 0;
XObjectPtr xobjectResult;
{
SetAndRestoreCurrentStackFrameIndex theSetAndRestore(
executionContext,
selectStackFrameIndex);
xobjectResult = m_selectPattern->execute(
*this,
executionContext,
*theGuard);
if (xobjectResult.null() == true)
{
sourceNodes = &*theGuard;
}
else
{
theGuard.release();
sourceNodes = &xobjectResult->nodeset();
}
}
if(0 != executionContext.getTraceListeners())
{
executionContext.fireSelectEvent(
SelectionEvent(
executionContext,
executionContext.getCurrentNode(),
*this,
StaticStringToDOMString(XALAN_STATIC_UCODE_STRING("select")),
*m_selectPattern,
*sourceNodes));
}
const NodeRefListBase::size_type nNodes = sourceNodes->getLength();
if (nNodes > 0)
{
// If there's not NodeSorter, or we've only selected one node,
// then just do the transform...
if (sorter == 0 || nNodes == 1)
{
transformSelectedChildren(
executionContext,
theTemplate,
*sourceNodes,
nNodes);
}
else
{
typedef StylesheetExecutionContext::SetAndRestoreCurrentStackFrameIndex SetAndRestoreCurrentStackFrameIndex;
typedef StylesheetExecutionContext::ContextNodeListPushAndPop ContextNodeListPushAndPop;
typedef StylesheetExecutionContext::BorrowReturnMutableNodeRefList BorrowReturnMutableNodeRefList;
BorrowReturnMutableNodeRefList sortedSourceNodes(executionContext);
*sortedSourceNodes = *sourceNodes;
{
SetAndRestoreCurrentStackFrameIndex theStackFrameSetAndRestore(
executionContext,
selectStackFrameIndex);
ContextNodeListPushAndPop theContextNodeListPushAndPop(
executionContext,
*sourceNodes);
sorter->sort(executionContext, *sortedSourceNodes);
}
transformSelectedChildren(
executionContext,
theTemplate,
*sortedSourceNodes,
nNodes);
}
}
}
