fgerlits commented on a change in pull request #1052:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1052#discussion_r618353909
##########
File path: extensions/standard-processors/processors/TailFile.cpp
##########
@@ -653,29 +690,56 @@ void TailFile::onTrigger(const
std::shared_ptr<core::ProcessContext> &, const st
if (!session->existsFlowFileInRelationship(Success)) {
yield();
}
+
+ first_trigger_ = false;
+}
+
+bool TailFile::isOldFileInitiallyRead(TailState &state) const {
+ // This is our initial processing and no stored state was found
+ return first_trigger_ && state.checksum_ == 0;
}
void TailFile::processFile(const std::shared_ptr<core::ProcessSession>
&session,
const std::string &full_file_name,
TailState &state) {
- uint64_t fsize = utils::file::FileUtils::file_size(full_file_name);
- if (fsize < state.position_) {
- processRotatedFiles(session, state);
- } else if (fsize == state.position_) {
- logger_->log_trace("Skipping file %s as its size hasn't change since last
read", state.file_name_);
- return;
+ if (isOldFileInitiallyRead(state)) {
+ if (initial_start_position_ == "Beginning of Time") {
+ processAllRotatedFiles(session, state);
+ } else if (initial_start_position_ == "Current Time") {
+ state.position_ = utils::file::FileUtils::file_size(full_file_name);
+ state.last_read_time_ = std::chrono::system_clock::now();
Review comment:
I would use `utils::file::FileUtils::computeChecksum()` as it is done in
`findRotatedFiles()` (line 656), mainly for consistency, but it's also slightly
shorter/simpler.
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