bakaid commented on a change in pull request #741: MINIFICPP-1139 Implemented.
URL: https://github.com/apache/nifi-minifi-cpp/pull/741#discussion_r385570840
##########
File path: extensions/windows-event-log/ConsumeWindowsEventLog.cpp
##########
@@ -391,322 +463,122 @@ void
ConsumeWindowsEventLog::substituteXMLPercentageItems(pugi::xml_document& do
doc.traverse(treeWalker);
}
-void ConsumeWindowsEventLog::processEvent(EVT_HANDLE hEvent) {
+bool ConsumeWindowsEventLog::createEventRender(EVT_HANDLE hEvent, EventRender&
eventRender) {
DWORD size = 0;
DWORD used = 0;
DWORD propertyCount = 0;
- if (!EvtRender(NULL, hEvent, EvtRenderEventXml, size, 0, &used,
&propertyCount)) {
- if (ERROR_INSUFFICIENT_BUFFER == GetLastError()) {
- if (used > maxBufferSize_) {
- logger_->log_error("Dropping event %x because it couldn't be rendered
within %ll bytes.", hEvent, maxBufferSize_);
- return;
- }
-
- size = used;
- std::vector<wchar_t> buf(size / 2 + 1);
- if (!EvtRender(NULL, hEvent, EvtRenderEventXml, size, &buf[0], &used,
&propertyCount)) {
- logger_->log_error("!EvtRender error: %d.", GetLastError());
- return;
- }
-
- std::string xml = wel::to_string(&buf[0]);
-
- pugi::xml_document doc;
- pugi::xml_parse_result result = doc.load_string(xml.c_str());
-
- if (!result) {
- logger_->log_error("Invalid XML produced");
- return;
- }
- // this is a well known path.
- std::string providerName =
doc.child("Event").child("System").child("Provider").attribute("Name").value();
- wel::MetadataWalker
walker(getEventLogHandler(providerName).getMetadata(), channel_, hEvent,
!resolve_as_attributes_, apply_identifier_function_, regex_);
-
- // resolve the event metadata
- doc.traverse(walker);
-
- EventRender renderedData;
-
- if (writePlainText_) {
- auto handler = getEventLogHandler(providerName);
- auto message = handler.getEventMessage(hEvent);
-
- if (!message.empty()) {
-
- for (const auto &mapEntry : walker.getIdentifiers()) {
- // replace the identifiers with their translated strings.
- utils::StringUtils::replaceAll(message, mapEntry.first,
mapEntry.second);
- }
- wel::WindowsEventLogHeader log_header(header_names_);
- // set the delimiter
- log_header.setDelimiter(header_delimiter_);
- // render the header.
- renderedData.rendered_text_ = log_header.getEventHeader(&walker);
- renderedData.rendered_text_ += "Message" + header_delimiter_ + " ";
- renderedData.rendered_text_ += message;
- }
- }
-
- if (writeXML_) {
- substituteXMLPercentageItems(doc);
-
- if (resolve_as_attributes_) {
- renderedData.matched_fields_ = walker.getFieldValues();
- }
-
- wel::XmlString writer;
- doc.print(writer, "", pugi::format_raw); // no indentation or
formatting
- xml = writer.xml_;
-
- renderedData.text_ = std::move(xml);
- }
-
- if (pBookmark_) {
- std::wstring bookmarkXml;
- if (pBookmark_->getNewBookmarkXml(hEvent, bookmarkXml)) {
- renderedData.bookmarkXml_ = bookmarkXml;
- }
- }
-
- listRenderedData_.enqueue(std::move(renderedData));
- }
+ EvtRender(NULL, hEvent, EvtRenderEventXml, size, 0, &used, &propertyCount);
+ if (ERROR_INSUFFICIENT_BUFFER != GetLastError()) {
+ logger_->log_error("!EvtRender error %d.", GetLastError());
+ return false;
}
-}
-bool ConsumeWindowsEventLog::processEventsAfterBookmark(EVT_HANDLE
hEventResults, const std::wstring& channel, const std::wstring& query) {
- if (!EvtSeek(hEventResults, 1, pBookmark_->bookmarkHandle(), 0,
EvtSeekRelativeToBookmark)) {
- logger_->log_error("!EvtSeek error %d.", GetLastError());
+ if (used > maxBufferSize_) {
+ logger_->log_error("Dropping event %x because it couldn't be rendered
within %ll bytes.", hEvent, maxBufferSize_);
Review comment:
@szaszm I agree that this is the completely correct solution, but as I said
before on an another PR, I don't see much point in selectively using inttypes
macros in random parts of the code, when most of it does not use it. We should
refactor the code to change every instance to the proper macro and then stick
to using them consistently.
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