IMWMetadataElement* CMetadataElementsImpl::GetItem(VARIANT vIndex)
{
IMWMetadataElement* pElement = NULL;
switch(vIndex.vt)
{
case VT_BSTR:
FindElementWithName(vIndex.bstrVal, pElement);
break;
case VT_I1:
case VT_I2:
case VT_I4:
case VT_I8:
case VT_INT:
case VT_UI1:
case VT_UI2:
case VT_UI4:
case VT_UI8:
case VT_UINT:
{
_variant_t vtIndex(vIndex);
FindElementAt(static_cast<long>(vtIndex), pElement);
}
break;
default:
throw Workshare::Com::ComException(_T("Invalid index."), E_INVALIDARG);
}
return pElement;
}
/*
* set node value for nodeName for existing node(or NULL for docroot) or create new. If value is NULL will be
* created empty node
* return pointer to the new element and NULL if not created
*/
void *setNode(xml_data *data, void *node, const char *nodeName,
const char *value) {
xmlNodePtr parent = node ? (xmlNodePtr) node : (xmlNodePtr) data->root;
if (!nodeName)
return (void *) NULL;
xmlNodePtr fNode = (xmlNodePtr) FindElementWithName(data, parent, nodeName);
xmlNodePtr addressNode = NULL;
if (fNode) {
xmlNodeSetContent(addressNode, (const xmlChar *) value);
} else {
addressNode = xmlNewChild(parent, NULL, (const xmlChar *) nodeName,
(const xmlChar *) value);
}
return (void *) addressNode;
}
/*
* finds element with name nodeName in parsed data. NULL if nothing found. node - root elemnt for
* node finding or NULL for docroot
*/
void *FindElementWithName(xml_data *data, void *node, const char *nodeName) {
xmlNodePtr cur = node ? node : (xmlNodePtr) data->root;
cur = cur->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *) nodeName))) {
return (void *) cur;
}
xmlNodePtr nodef = (xmlNodePtr) FindElementWithName(data, cur,
nodeName);
if (nodef) {
return (void *) nodef;
}
cur = cur->next;
}
return NULL;
}
/*
* finds element with name nodeName and attrName with attrValue
* in parsed data. NULL if nothing found. node - root elemnt for
* node finding or NULL for docroot
*/
void *FindElementWithNameAndAttr(xml_data *data, void *node, const char *nodeName,
const char *attrName, const char *attrValue) {
xmlNodePtr cur = node ? node : (xmlNodePtr) data->root;
cur = cur->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *) nodeName))) {
const char *attr = getElemAttr(cur, attrName);
if (attr && !strcmp(attr, attrValue)){
releaseElemValue(attr);
return cur;
}
releaseElemValue(attr);
}
xmlNodePtr nodef = (xmlNodePtr) FindElementWithName(data, cur,
nodeName);
if (nodef) {
return (void *) nodef;
}
cur = cur->next;
}
return NULL;
}
