void DeltaApplyEngine::TextNode_Update( XID_t nodeXID, DOMNode *operationNode ) {
vddprintf((" update xid=%d\n",(int)nodeXID));
DOMNode* upNode = xiddoc->getXidMap().getNodeWithXID( nodeXID );
if (upNode==NULL) THROW_AWAY(("node with XID=%d not found",(int)nodeXID));
DOMNodeList *opNodes = operationNode->getChildNodes();
vddprintf(("opNodes->length() = %d\n", opNodes->getLength()));
XyStrDeltaApply *xytext = new XyStrDeltaApply(xiddoc, upNode, 1);
xytext->setApplyAnnotations(applyAnnotations);
for (int i = opNodes->getLength() - 1; i >= 0; i--) {
DOMElement *op = (DOMElement *) opNodes->item(i);
char *optype = XMLString::transcode(op->getLocalName());
XMLCh pos_attr[4];
XMLCh len_attr[4];
XMLString::transcode("pos", pos_attr, 3);
XMLString::transcode("len", len_attr, 3);
vddprintf(("item %d = %s\n", i, optype));
// Replace operation
if (strcmp(optype, "tr") == 0) {
char *pos = XMLString::transcode(op->getAttribute(pos_attr));
char *len = XMLString::transcode(op->getAttribute(len_attr));
xytext->replace(atoi(pos), atoi(len), op->getTextContent());
XMLString::release(&pos);
XMLString::release(&len);
}
// Delete operation
else if (strcmp(optype, "td") == 0) {
char *pos = XMLString::transcode(op->getAttribute(pos_attr));
char *len = XMLString::transcode(op->getAttribute(len_attr));
xytext->remove(atoi(pos), atoi(len));
XMLString::release(&pos);
XMLString::release(&len);
}
// Insert operation
else if (strcmp(optype, "ti") == 0) {
char *pos = XMLString::transcode(op->getAttribute(pos_attr));
xytext->insert(atoi(pos), op->getTextContent());
XMLString::release(&pos);
}
XMLString::release(&optype);
}
xytext->complete();
delete xytext;
}
void
ddprintf(const char *ctl, ...)
{
va_list va;
if (DebugOpt) {
va_start(va, ctl);
vddprintf(ctl, va);
va_end(va);
}
}
void DeltaApplyEngine::Subtree_Delete( const char *xidmapStr ) {
XidMap_Parser parse(xidmapStr) ;
// Note here that the PostFix order for XID-map is important to garantuee that nodes will be deleted in the correct order
while (!parse.isListEmpty()) {
XID_t deleteXID = parse.getNextXID();
vddprintf(( " delete node xid=%d\n", (int) deleteXID ));
DOMNode* deleteNode = xiddoc->getXidMap().getNodeWithXID( deleteXID );
if (deleteNode==NULL) THROW_AWAY(("node with XID=%d not found",(int)deleteXID));
xiddoc->getXidMap().removeNode( deleteNode );
deleteNode = deleteNode->getParentNode()->removeChild( deleteNode );
}
}
void DeltaApplyEngine::Subtree_MoveFrom( XID_t myXID ) {
vddprintf((" move (from) node xid=%d\n", (int) myXID ));
DOMNode* moveNode = xiddoc->getXidMap().getNodeWithXID( myXID );
if (moveNode==NULL) THROW_AWAY(("node with XID=%d not found",(int)myXID));
DOMNode* backupNode = moveDocument->importNode( moveNode, true );
moveDocument->getXidMap().mapSubtree( xiddoc->getXidMap().String(moveNode).c_str() , backupNode );
moveDocument->getDocumentElement()->appendChild( backupNode );
moveNode = moveNode->getParentNode()->removeChild( moveNode );
xiddoc->getXidMap().removeSubtree( moveNode );
}
void DeltaApplyEngine::Subtree_MoveTo( XID_t myXID, XID_t parentXID, int position ) {
vddprintf((" move subtree rooted by %d to (parent=%d, pos=%d)\n", (int)myXID, (int)parentXID, position));
DOMNode* moveRoot = NULL;
try {
moveRoot = moveDocument->getXidMap().getNodeWithXID( myXID ) ;
} catch (...) {
return;
}
if (moveRoot==NULL) return; //THROW_AWAY(("node with XID=%d not found",(int)myXID));
Subtree_Insert(moveRoot, parentXID, position, moveDocument->getXidMap().String(moveRoot).c_str() );
(void)moveRoot->getParentNode()->removeChild(moveRoot);
}
DeltaApplyEngine::DeltaApplyEngine(XID_DOMDocument *sourceDoc) {
if (sourceDoc == NULL) THROW_AWAY(("document is null"));
xiddoc = sourceDoc ;
vddprintf(("creating temporary move document\n"));
moveDocument = XID_DOMDocument::createDocument() ;
moveDocument->initEmptyXidmapStartingAt(-1);
XMLCh *moveRootCh = XMLString::transcode("moveRoot");
DOMElement* moveRoot = moveDocument->createElement(moveRootCh) ;
XMLString::release(&moveRootCh);
moveDocument->appendChild( moveRoot );
applyAnnotations = false;
}
void DeltaApplyEngine::Attribute_Insert( XID_t nodeXID, const XMLCh* attr, const XMLCh* value ) {
vddprintf((" insert attr at xid=%d\n",(int)nodeXID));
DOMNode* node = xiddoc->getXidMap().getNodeWithXID( nodeXID );
if (node==NULL) THROW_AWAY(("node with XID=%d not found",(int)nodeXID));
DOMAttr* attrNode = xiddoc->createAttribute( attr );
attrNode->setNodeValue( value );
DOMNamedNodeMap *attrs = node->getAttributes();
if (attrs == NULL) {
if (node->getNodeType() != DOMNode::ELEMENT_NODE) {
THROW_AWAY(("Attempted to insert an attribute on a non-element node. Perhaps xidmap was corrupted?"));
} else {
THROW_AWAY(("Unexpected error encountered: getAttributes() returned NULL for element"));
}
} else {
attrs->setNamedItem( attrNode );
}
}
int
xfprintf(FILE *fo, const char *ctl, ...)
{
va_list va;
int r;
if (fo == NULL) {
logit(LOG_CRIT, "xfprintf() - fo NULL!");
exit(1);
}
va_start(va, ctl);
r = vfprintf(fo, ctl, va);
va_end(va);
if (DebugOpt > 2) {
va_start(va, ctl);
vddprintf(ctl, va);
va_end(va);
}
return(r);
}
void DeltaApplyEngine::ApplyDeltaElement(DOMNode* incDeltaElement) {
vddprintf(("Apply delta element\n"));
deltaElement = incDeltaElement;
/* ---- Do All DELETE Operations ( including 'from' part of move ) ---- */
vddprintf(("Apply Delete operations\n"));
DOMNode* firstOp = deltaElement->getFirstChild() ;
vddprintf((" first sort delete operations...\n"));
SortDeleteOperationsEngine deleteOps(xiddoc, firstOp);
vddprintf((" then apply all of them 1 by 1...\n"));
while(!deleteOps.isListEmpty()) {
DOMNode* op=deleteOps.getNextDeleteOperation();
ApplyOperation(op);
}
vddprintf(("Ok, there are no more delete operations.\n"));
/* ---- Do All INSERT Operations ( including 'to' part of move ) ---- */
firstOp = deltaElement->getFirstChild() ;
SortInsertOperationsEngine insertOps(xiddoc, firstOp);
while(!insertOps.isListEmpty()) {
DOMNode* op=insertOps.getNextInsertOperation();
ApplyOperation(op);
}
/* ---- Do all UPDATE & ATTRIBUTE Operations ---- */
DOMNode* child = deltaElement->getFirstChild() ;
XMLCh iStr[100];
XMLString::transcode("i", iStr, 99);
XMLCh dStr[100];
XMLString::transcode("d", dStr, 99);
while (child != NULL) {
if ( (!XMLString::equals(child->getLocalName(),iStr))
&&(!XMLString::equals(child->getLocalName(), dStr)) ) ApplyOperation(child);
child = child->getNextSibling() ;
}
/* ---- Small consistency checks ---- */
if (moveDocument->getDocumentElement()->hasChildNodes()) THROW_AWAY(("temporary document used to move node is not empty!"));
vddprintf(("xiddoc=%s\n",xiddoc->getXidMap().String().c_str() ));
}
void DeltaApplyEngine::Subtree_Insert( DOMNode *insertSubtreeRoot, XID_t parentXID, int position, const char *xidmapStr ) {
vddprintf(( " insert xidmap=%s at (parent=%d, pos=%d)\n", xidmapStr, (int)parentXID, position));
DOMNode* contentNode = xiddoc->importNode( insertSubtreeRoot, true );
DOMNode* parentNode = xiddoc->getXidMap().getNodeWithXID( parentXID );
if (parentNode==NULL) THROW_AWAY(("parent node with XID=%d not found",(int)parentXID));
int actual_pos = 1 ;
if ((position!=1)&&(!parentNode->hasChildNodes())) THROW_AWAY(("parent has no children but position is %d",position));
DOMNode* brother = parentNode->getFirstChild();
while (actual_pos < position) {
brother = brother->getNextSibling();
actual_pos++;
if ((brother==NULL)&&(actual_pos<position)) THROW_AWAY(("parent has %d children but position is %d",actual_pos-1, position));
}
// Add node to the tree
if (brother==NULL) parentNode->appendChild( contentNode );
else parentNode->insertBefore( contentNode, brother );
xiddoc->getXidMap().mapSubtree( xidmapStr, contentNode );
}
DOMNode* DeltaReverse( DOMNode *deltaElement, DOMDocument *reversedDoc ) {
vddprintf((" reversing time-version header\n"));
DOMNode* reversedElement = reversedDoc->importNode( deltaElement, false );
//DOMString from = deltaElement.getAttributes().getNamedItem("from").getNodeValue() ;
//DOMString to = deltaElement.getAttributes().getNamedItem("to" ).getNodeValue() ;
const XMLCh* from = deltaElement->getAttributes()->getNamedItem(XMLString::transcode("from"))->getNodeValue() ;
const XMLCh* to = deltaElement->getAttributes()->getNamedItem(XMLString::transcode("to"))->getNodeValue() ;
reversedElement->getAttributes()->getNamedItem(XMLString::transcode("to"))->setNodeValue( from );
reversedElement->getAttributes()->getNamedItem(XMLString::transcode("from"))->setNodeValue( to );
DOMNode* fromXidMap = deltaElement->getAttributes()->getNamedItem(XMLString::transcode("fromXidMap"));
DOMNode* toXidMap = deltaElement->getAttributes()->getNamedItem(XMLString::transcode("toXidMap"));
if (fromXidMap!=NULL) {
//DOMString from = fromXidMap.getNodeValue();
reversedElement->getAttributes()->getNamedItem(XMLString::transcode("toXidMap"))->setNodeValue( fromXidMap->getNodeValue() );
}
if (toXidMap!=NULL) {
//DOMString to = toXidMap.getNodeValue();
reversedElement->getAttributes()->getNamedItem(XMLString::transcode("fromXidMap"))->setNodeValue( toXidMap->getNodeValue() );
}
// No chanhges in the delta -> ok
if (!deltaElement->hasChildNodes()) return( reversedElement );
// Input : read Elementary Operation
DOMNode* child = deltaElement->getFirstChild() ;
// Output : precedent will be used to write Elementary Operation in reverse order
DOMNode* precedent = NULL; // =NULL by default
while (child != NULL) {
if (child->getNodeType()!=DOMNode::ELEMENT_NODE) THROW_AWAY(("Bad type (%d) for Delta Operation Node", (int)child->getNodeType()));
DOMElement* operationNode = (DOMElement*) child ;
XyLatinStr operation(child->getLocalName());
// Reverse DELETE into INSERT
if (strcmp(operation, "d")==0) {
vddprintf((" reversing delete into insert\n"));
DOMElement* iElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:i")) ;
CopyAttr(iElement, operationNode, XMLString::transcode("par"), true);
CopyAttr(iElement, operationNode, XMLString::transcode("pos"), true);
CopyAttr(iElement, operationNode, XMLString::transcode("xm"), true);
CopyAttr(iElement, operationNode, XMLString::transcode("move"), false);
CopyAttr(iElement, operationNode, XMLString::transcode("update"), false);
CopyContent(iElement, operationNode);
reversedElement->insertBefore( iElement, precedent ) ;
precedent = iElement ;
}
// Reverse INSERT into DELETE
else if (strcmp(operation, "i")==0) {
vddprintf((" reversing insert into delete\n"));
DOMElement *iElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:d")) ;
CopyAttr(iElement, operationNode, XMLString::transcode("par"), true);
CopyAttr(iElement, operationNode, XMLString::transcode("pos"), true);
CopyAttr(iElement, operationNode, XMLString::transcode("xm"), true);
CopyAttr(iElement, operationNode, XMLString::transcode("move"), false);
CopyAttr(iElement, operationNode, XMLString::transcode("update"), false);
CopyContent(iElement, operationNode);
reversedElement->insertBefore( iElement, precedent ) ;
precedent = iElement ;
}
// Attribute Update
else if (strcmp(operation, "au")==0) {
vddprintf((" reversing attribute update\n"));
//DOMString xidElem = operationNode.getAttributes().getNamedItem("xid").getNodeValue();
//DOMString attrName = operationNode.getAttributes().getNamedItem("a").getNodeValue();
//DOMString oldValue = operationNode.getAttributes().getNamedItem("ov").getNodeValue();
//DOMString newValue = operationNode.getAttributes().getNamedItem("nv").getNodeValue();
const XMLCh* xidElem = operationNode->getAttributes()->getNamedItem(XMLString::transcode("xid"))->getNodeValue();
const XMLCh* attrName = operationNode->getAttributes()->getNamedItem(XMLString::transcode("a"))->getNodeValue();
const XMLCh* oldValue = operationNode->getAttributes()->getNamedItem(XMLString::transcode("ov"))->getNodeValue();
const XMLCh* newValue = operationNode->getAttributes()->getNamedItem(XMLString::transcode("nv"))->getNodeValue();
DOMElement* auElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:au"));
auElement->setAttribute(XMLString::transcode("xid"), xidElem);
auElement->setAttribute(XMLString::transcode("a"), attrName);
auElement->setAttribute(XMLString::transcode("nv"), oldValue);
auElement->setAttribute(XMLString::transcode("ov"), newValue);
reversedElement->insertBefore(auElement, precedent);
precedent = auElement ;
}
// Attribute Delete
else if (strcmp(operation, "ad")==0) {
vddprintf((" reversing attribute insert into attribute delete\n"));
//DOMString xidElem = operationNode.getAttributes().getNamedItem("xid").getNodeValue();
//DOMString attrName = operationNode.getAttributes().getNamedItem("a").getNodeValue();
//DOMString attrVal = operationNode.getAttributes().getNamedItem("v").getNodeValue();
const XMLCh* xidElem = operationNode->getAttributes()->getNamedItem(XMLString::transcode("xid"))->getNodeValue();
const XMLCh* attrName = operationNode->getAttributes()->getNamedItem(XMLString::transcode("a"))->getNodeValue();
const XMLCh* attrVal = operationNode->getAttributes()->getNamedItem(XMLString::transcode("v"))->getNodeValue();
DOMElement* aiElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:ai"));
aiElement->setAttribute(XMLString::transcode("xid"), xidElem);
aiElement->setAttribute(XMLString::transcode("a"), attrName);
aiElement->setAttribute(XMLString::transcode("v"), attrVal);
reversedElement->insertBefore(aiElement, precedent);
precedent = aiElement ;
}
// Attribute Insert
else if (strcmp(operation, "ai")==0) {
vddprintf((" reversing attribute delete into attribute insert\n"));
//DOMString xidElem = operationNode.getAttributes().getNamedItem("xid").getNodeValue();
//DOMString attrName = operationNode.getAttributes().getNamedItem("a").getNodeValue();
//DOMString attrVal = operationNode.getAttributes().getNamedItem("v").getNodeValue();
const XMLCh* xidElem = operationNode->getAttributes()->getNamedItem(XMLString::transcode("xid"))->getNodeValue();
const XMLCh* attrName = operationNode->getAttributes()->getNamedItem(XMLString::transcode("a"))->getNodeValue();
const XMLCh* attrVal = operationNode->getAttributes()->getNamedItem(XMLString::transcode("v"))->getNodeValue();
DOMElement* adElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:ad"));
adElement->setAttribute(XMLString::transcode("xid"), xidElem);
adElement->setAttribute(XMLString::transcode("a"), attrName);
adElement->setAttribute(XMLString::transcode("v"), attrVal);
reversedElement->insertBefore(adElement, precedent);
precedent = adElement ;
}
// Reverse UPDATE to UPDATE
else if (strcmp(operation, "u")==0) {
vddprintf((" reversing update\n"));
DOMNode* oldValue = child->getFirstChild() ;
if ( oldValue==NULL ) throw ReverseUpdateException("<update> has no child!");
DOMNode* newValue = oldValue->getNextSibling() ;
if ( newValue==NULL ) throw ReverseUpdateException("<update> has only one child!");
//DOMString xid= child.getAttributes().getNamedItem("xid").getNodeValue() ;
const XMLCh* xid= child->getAttributes()->getNamedItem(XMLString::transcode("xid"))->getNodeValue() ;
DOMElement *uElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:u")) ;
uElement->setAttribute(XMLString::transcode("xid"), xid);
DOMElement* uOld = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:ov"));
DOMNode* uOldText = reversedDoc->importNode( newValue->getFirstChild(), true );
uOld->appendChild( uOldText );
DOMElement* uNew = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:nv"));
DOMNode* uNewText = reversedDoc->importNode( oldValue->getFirstChild(), true );
uNew->appendChild( uNewText );
uElement->appendChild( uOld ) ;
uElement->appendChild( uNew ) ;
reversedElement->insertBefore( uElement, precedent ) ;
precedent = uElement ;
}
else if (strcmp(operation, "renameRoot")==0) {
vddprintf((" reversing renameRoot operation\n"));
const XMLCh* rFrom = operationNode->getAttributes()->getNamedItem(XMLString::transcode("from"))->getNodeValue();
const XMLCh* rTo = operationNode->getAttributes()->getNamedItem(XMLString::transcode("to"))->getNodeValue();
DOMElement *rrElement = reversedDoc->createElementNS(XYDIFF_XYDELTA_NS, XMLString::transcode("xy:renameRoot"));
rrElement->setAttribute(XMLString::transcode("from"), rTo);
rrElement->setAttribute(XMLString::transcode("to"), rFrom);
reversedElement->insertBefore(rrElement, precedent);
precedent = rrElement ;
}
else {
throw DeltaReverseException("Invalid Data", "main", "Unknown operation <" + std::string(operation) + ">") ;
}
child = child->getNextSibling();
}
return ( reversedElement ) ;
}
void DeltaApplyEngine::ApplyOperation(DOMNode *operationNode) {
vddprintf(("ApplyOperation\n"));
XMLCh dStr[2];
XMLCh iStr[2];
XMLCh uStr[2];
XMLCh adStr[3];
XMLCh aiStr[3];
XMLCh auStr[3];
XMLCh renameRootStr[11];
XMLString::transcode("d", dStr, 1);
XMLString::transcode("i", iStr, 1);
XMLString::transcode("u", uStr, 1);
XMLString::transcode("ad", adStr, 2);
XMLString::transcode("ai", aiStr, 2);
XMLString::transcode("au", auStr, 2);
XMLString::transcode("renameRoot", renameRootStr, 10);
XMLCh tempStr[6];
if (XMLString::equals(operationNode->getLocalName(), dStr)) {
vddprintf((" d(elete)\n"));
bool move = false ;
XMLString::transcode("move", tempStr, 5);
DOMNode* moveAttr = operationNode->getAttributes()->getNamedItem(tempStr) ;
XMLString::transcode("yes", tempStr, 5);
if ((moveAttr!=NULL) && (XMLString::equals(moveAttr->getNodeValue(),tempStr))) {
move = true;
}
XMLString::transcode("xm", tempStr, 5);
char *xidmapStr = XMLString::transcode(operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue());
if (move) {
XidMap_Parser parse(xidmapStr) ;
XID_t myXid = parse.getRootXID();
Subtree_MoveFrom( myXid );
}
else {
Subtree_Delete(xidmapStr) ;
}
XMLString::release(&xidmapStr);
}
else if (XMLString::equals(operationNode->getLocalName(),iStr)) {
vddprintf((" i(nsert)\n"));
bool move = false ;
XMLString::transcode("move", tempStr, 5);
DOMNode* moveAttr = operationNode->getAttributes()->getNamedItem(tempStr) ;
XMLString::transcode("yes", tempStr, 5);
if ( (moveAttr!=NULL) && (XMLString::equals( moveAttr->getNodeValue(), tempStr ))) {
move = true;
}
XMLString::transcode("pos", tempStr, 5);
DOMNode *n = operationNode->getAttributes()->getNamedItem(tempStr);
int position = XyInt(n->getNodeValue());
XMLString::transcode("par", tempStr, 5);
n = operationNode->getAttributes()->getNamedItem(tempStr);
XID_t parentXID = (XID_t)(int)XyInt(n->getNodeValue());
XMLString::transcode("xm", tempStr, 5);
char *xidmapStr = XMLString::transcode(operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue());
if (move) {
XidMap_Parser parse(xidmapStr) ;
XID_t myXid = parse.getRootXID();
Subtree_MoveTo( myXid, parentXID, position );
}
else {
DOMNode* insertRoot ;
// get data to insert
if (operationNode->hasChildNodes()) insertRoot = operationNode->getFirstChild() ;
else THROW_AWAY(("insert operator element contains no data"));
Subtree_Insert( insertRoot, parentXID, position, xidmapStr ) ;
}
XMLString::release(&xidmapStr);
}
else if (XMLString::equals(operationNode->getLocalName(), uStr)) {
vddprintf((" u(pdate)\n"));
XMLString::transcode("oldxm", tempStr, 5);
char *xidmapStr = XMLString::transcode(operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue());
XidMap_Parser parse(xidmapStr) ;
XID_t nodeXID = parse.getRootXID();
TextNode_Update( nodeXID, operationNode);
XMLString::release(&xidmapStr);
}
else if (XMLString::equals(operationNode->getLocalName(), adStr)) {
vddprintf((" a(ttribute) d(elete)\n"));
XMLString::transcode("xid", tempStr, 5);
XID_t nodeXID = (XID_t)(int)XyInt(operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue());
XMLString::transcode("a", tempStr, 5);
const XMLCh* attr = operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue() ;
Attribute_Delete( nodeXID, attr );
}
else if (XMLString::equals(operationNode->getLocalName(), aiStr)) {
vddprintf((" a(ttribute) i(nsert)\n"));
XMLString::transcode("xid", tempStr, 5);
XID_t nodeXID = (XID_t)(int)XyInt(operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue());
XMLString::transcode("a", tempStr, 5);
const XMLCh* attr = operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue() ;
XMLString::transcode("v", tempStr, 5);
const XMLCh* value = operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue() ;
Attribute_Insert( nodeXID, attr, value );
}
else if (XMLString::equals(operationNode->getLocalName(), auStr)) {
vddprintf((" a(ttribute) u(pdate)\n"));
XMLString::transcode("xid", tempStr, 5);
XID_t nodeXID = (XID_t)(int)XyInt(operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue());
XMLString::transcode("a", tempStr, 5);
const XMLCh* attr = operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue() ;
XMLString::transcode("nv", tempStr, 5);
const XMLCh* value = operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue() ;
Attribute_Update( nodeXID, attr, value );
}
else if (XMLString::equals(operationNode->getLocalName(), renameRootStr)) {
vddprintf((" renameRoot\n"));
DOMNode *root = xiddoc->getDocumentElement();
XID_t rootXID = xiddoc->getXidMap().getXIDbyNode(root);
XMLString::transcode("to", tempStr, 5);
const XMLCh* newrootName = operationNode->getAttributes()->getNamedItem(tempStr)->getNodeValue() ;
DOMElement* newroot = xiddoc->createElement(newrootName);
DOMNode* child = root->getFirstChild();
while(child!=NULL) {
root->removeChild(child);
newroot->appendChild(child);
child = root->getFirstChild();
}
DOMNamedNodeMap *attributes = root->getAttributes();
for(unsigned int i=0;i<attributes->getLength();i++) {
DOMNode *an = attributes->item(i);
newroot->setAttribute(an->getNodeName(), an->getNodeValue());
}
xiddoc->removeChild(root);
xiddoc->getXidMap().removeNode(root);
root->release();
xiddoc->appendChild(newroot);
xiddoc->getXidMap().registerNode(newroot, rootXID);
xiddoc->getXidMap().SetRootElement(newroot);
}
}
void DeltaApplyEngine::Attribute_Delete( XID_t nodeXID, const XMLCh* attr ) {
vddprintf((" delete attr at xid=%d\n",(int)nodeXID));
DOMNode* node = xiddoc->getXidMap().getNodeWithXID( nodeXID );
if (node==NULL) THROW_AWAY(("node with XID=%d not found",(int)nodeXID));
node = node->getAttributes()->removeNamedItem( attr );
}
void DeltaApplyEngine::Attribute_Update( XID_t nodeXID, const XMLCh* attr, const XMLCh* value ) {
vddprintf((" update attr at xid=%d\n",(int)nodeXID));
DOMNode* node = xiddoc->getXidMap().getNodeWithXID( nodeXID );
if (node==NULL) THROW_AWAY(("node with XID=%d not found",(int)nodeXID));
node->getAttributes()->getNamedItem( attr )->setNodeValue( value );
}
