arpadboda commented on a change in pull request #584: minificpp-773
URL: https://github.com/apache/nifi-minifi-cpp/pull/584#discussion_r290653710
##########
File path: extensions/windows-event-log/ConsumeWindowsEventLog.cpp
##########
@@ -134,14 +157,81 @@ void ConsumeWindowsEventLog::onTrigger(const
std::shared_ptr<core::ProcessContex
}
}
-bool ConsumeWindowsEventLog::subscribe(const
std::shared_ptr<core::ProcessContext> &context)
-{
+void ConsumeWindowsEventLog::createTextOutput(std::wstringstream& stream,
MSXML2::IXMLDOMElementPtr pRoot, std::vector<std::wstring>& ancestors) {
+ const auto pNodeChildren = pRoot->childNodes;
+
+ auto writeAncestors = [](std::wstringstream& stream,
std::vector<std::wstring>& ancestors) {
+ for (size_t j = 0; j < ancestors.size() - 1; j++) {
+ stream << ancestors[j] + L'/';
+ }
+ stream << ancestors[ancestors.size() - 1];
+ };
+
+ if (0 == pNodeChildren->length) {
+ writeAncestors(stream, ancestors);
+
+ stream << std::endl;
+ }
+ else {
+ for (long i = 0; i < pNodeChildren->length; i++) {
+ std::wstringstream curStream;
+
+ const auto pNode = pNodeChildren->item[i];
+
+ const auto nodeType = pNode->GetnodeType();
+
+ if (DOMNodeType::NODE_TEXT == nodeType) {
+ const auto nodeValue = pNode->text;
+ if (nodeValue.length()) {
+ writeAncestors(stream, ancestors);
+
+ std::wstring strNodeValue = static_cast<LPCWSTR>(nodeValue);
+
+ // Remove '\n', '\r' - just substitute all whitespaces with ' '.
+ strNodeValue = std::regex_replace(strNodeValue,
std::wregex(L"\\s+"), L" ");
+
+ curStream << L" = " << strNodeValue;
+ }
+
+ stream << curStream.str() << std::endl;
+ } else if (DOMNodeType::NODE_ELEMENT == nodeType) {
+ curStream << pNode->nodeName;
+
+ const auto pAttributes = pNode->attributes;
+ for (long iAttr = 0; iAttr < pAttributes->length; iAttr++) {
+ const auto pAttribute = pAttributes->item[iAttr];
+
+ curStream << L" " << pAttribute->nodeName << L'(' <<
static_cast<_bstr_t>(pAttribute->nodeValue) << L')';
+ }
+
+ ancestors.emplace_back(curStream.str());
+ createTextOutput(stream, pNode, ancestors);
+ ancestors.resize(ancestors.size() - 1);
Review comment:
I think a simple pop_back() would do the same here.
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