mac-op commented on code in PR #25:
URL: https://github.com/apache/uima-uimacpp/pull/25#discussion_r1727756152
##########
src/framework/annotator_mgr.cpp:
##########
@@ -583,7 +576,185 @@ namespace uima {
}
UIMA_ANNOTATOR_TIMING(iv_clTimerLaunchProcess.stop());
- return(utRetVal);
+ return utRetVal;
+ }
+
+ CAS *AnnotatorManager::processUntilNextOutputCas() {
+ unique_ptr<Flow> flow{};
+ while (true) {
+ CAS *currentCas = nullptr;
+ Step nextStep;
+ flow = nullptr;
+
+ // get a cas from the stack
+ if (casIterStack.empty())
+ return nullptr;
+
+ StackFrame &frame = casIterStack.top();
+ try {
+ if (frame.casMultiplier && frame.casMultiplier->hasNext()) {
+ currentCas = &frame.casMultiplier->next();
+ // compute flow for newly produced CAS
+ flow = frame.originalFlow->newCasProduced(*currentCas,
frame.lastEngineKey);
+ }
+ } catch (Exception &exception) {
+ if (!frame.originalFlow->continueOnFailure(frame.lastEngineKey /*
,exception */))
+ throw;
+ }
+
+ if (!currentCas) {
+ // if there is no more output CASes from the stack, take the
original CAS that was processed by
+ // the CAS Multiplier and continue with its flow
+ currentCas = frame.originalCas;
+ flow = std::move(frame.originalFlow);
+ currentCas->setCurrentComponentInfo(nullptr);
+ casIterStack.pop();
+ }
+
+ activeCASes.insert(currentCas);
+
+ if (nextStep.getType() == Step::StepType::UNSPECIFIED) {
+ nextStep = flow->next(); // get the next step for the current flow
+ }
+
+ while (nextStep.getType() != Step::StepType::FINALSTEP) {
+ if (nextStep.getType() == Step::StepType::SIMPLESTEP) {
+ // find the AE specified by the step
+ const icu::UnicodeString &nextAEKey =
nextStep.getSimpleStep()->getEngineName();
+ auto it = std::find_if(iv_vecEntries.begin(), iv_vecEntries.end(),
+ [&, nextAEKey](const EngineEntry &entry) {
+ return
entry.iv_pEngine->getAnnotatorContext().iv_AnCKey == nextAEKey;
+ });
+
+ if (it != iv_vecEntries.end()) {
+ AnalysisEngine *nextAE = it->iv_pEngine;
+ CAS *outputCas = nullptr;
+
+ // call process one the AE and see if it has produced a new CAS
+ try {
+ CASIterator casIter =
nextAE->processAndOutputNewCASes(*currentCas);
+ if (casIter.hasNext())
+ outputCas = &casIter.next();
+ } catch (Exception &e) {
+ if (!flow->continueOnFailure(nextAEKey))
+ throw;
+ }
+
+ if (outputCas) {
+ // new CAS is output so put the current components on the
stack so we can process
+ // the other output CASes and original CASes later
+ std::unique_ptr<Flow> nextFlow =
flow->newCasProduced(*outputCas, nextAEKey);
+ casIterStack.push({nextAE, currentCas, std::move(flow),
nextAEKey});
+ flow = std::move(nextFlow);
+ currentCas = outputCas;
+ activeCASes.insert(currentCas);
+ } else {
+ // No new CASes are output, this CAS is done being processed
by the current engine.
+ currentCas->setCurrentComponentInfo(nullptr);
+ }
+ } else {
+ UIMA_EXC_THROW_NEW(EngineProcessingException,
+ UIMA_ERR_USER_ANNOTATOR_COULD_NOT_PROCESS,
+ UIMA_MSG_ID_EXCON_PROCESSING_CAS,
+ ErrorMessage(UIMA_MSG_ID_LITERAL_STRING,
"Unknown Delegate Key"),
+ ErrorInfo::unrecoverable);
+ }
+ } else if (nextStep.getType() == Step::StepType::PARALLELSTEP) {
+ // TODO: ParallelStep not supported yet
+ UIMA_EXC_THROW_NEW(NotYetImplementedException,
+ UIMA_ERR_NOT_YET_IMPLEMENTED,
+ UIMA_MSG_ID_EXC_NOT_YET_IMPLEMENTED,
+ ErrorMessage(UIMA_MSG_ID_LITERAL_STRING,
"Parallel Step not supported yet"),
+ ErrorInfo::unrecoverable
+ );
+ } else {
+ UIMA_EXC_THROW_NEW(EngineProcessingException,
+ UIMA_ERR_USER_ANNOTATOR_COULD_NOT_PROCESS,
+ UIMA_MSG_ID_EXCON_PROCESSING_CAS,
+ ErrorMessage(UIMA_MSG_ID_LITERAL_STRING,
"Unknown Step Type"),
+ ErrorInfo::unrecoverable);
+ }
+
+ nextStep = flow->next();
+ }
+
+ const FinalStep *finalStep = nextStep.getFinalStep();
+ if (currentCas == inputCas) {
+ if (finalStep->getForceDropCAS()) {
+ // Not allowed to drop the input CAS so something must have gone
wrong
+ UIMA_EXC_THROW_NEW(EngineProcessingException,
+ UIMA_ERR_USER_ANNOTATOR_COULD_NOT_PROCESS,
+ UIMA_MSG_ID_EXCON_PROCESSING_CAS,
+ ErrorMessage(UIMA_MSG_ID_LITERAL_STRING,
"Illegal CAS drop"),
+ ErrorInfo::unrecoverable);
+ }
+ return nullptr;
+ }
+
+ if (iv_bOutputNewCases && !finalStep->getForceDropCAS())
Review Comment:
Yes the finalStep will determine if that CAS is dropped or not. In this
instance that finalStep is constructed by the FixedFlowController and
FixedFlowObject, and the default action in the FixedFlowController is
DROP_IF_NEW_CAS_PRODUCED
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