szaszm commented on a change in pull request #741: MINIFICPP-1139 Implemented.
URL: https://github.com/apache/nifi-minifi-cpp/pull/741#discussion_r385386846
##########
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:
For `uint64_t`, the `PRIu64` macro should be used from `<cinttypes>`, since
nothing guarantees that it's a typedef to `unsigned long long int`. On my
machine, it's a typedef to `unsigned long int` and I get warnings for those
format strings.
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