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Fix fmea generation #41

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Fix fmea generation #41

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Matthew-Kulich
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@blcham
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blcham commented Dec 10, 2022

@Matthew-Kulich I am not able to review this. Try contact @kostobog on slack and if he does not answer in 2 days and you are quite sure it is ok then merge it.

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I think that there some issues with FMEA generation. Check comments and implement fix.

@@ -281,7 +281,7 @@ private void processChildBehaviors(Behavior behavior,FaultEvent parentFaultEvent
parentFaultEvent.addChild(faultEvent);

for (Behavior behaviorChild : behavior.getChildBehaviors()) {
if(isVisited(behaviorChild))
if(isVisited(behaviorChild) || behaviorChild.isFailureModeCause())
continue;
FaultEvent fEvent = new FaultEvent();
fEvent.setBehavior(behaviorChild);
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@@ -154,39 +154,37 @@ private List<Map<String, Object>> computeTableRows(FailureModesTable table, List
.stream()
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line #132 - potential issue that was not fixed. The failure mode is extracted from the localEffect (I assume that this is the leaf event in the FTA see FailureModesTableDialog.handleCreate). This does not follow the description established in kbss-cvut/fta-fmea-ui#46 , specifically:

  • select Failure Mode - select the Failure Mode (FM) of the Fault Event which is a direct child of the FF Fault Event . If there is no child fault event or if the fault event is not a manifestation of a failure mode leave the failure mode column empty.

Comment on lines +158 to +162
for (FaultEvent faultEvent : treePathList) {
localEffect = faultEvent;
if (!localEffect.getName().equals(failureMode.getName())) {
break;
}
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The code will fetch the first event in the path from the root side (treePathList is ordered from root to leaf) that does not match the name of the failure mode.

Check if this code follows the description established in kbss-cvut/fta-fmea-ui#46 , specifically:

  • select Local Effect - the local effect (LE) should be a direct parent of the FF fault event and it should be a failure of a function which is different from function F and is in component C. If there is no such fault event leave the column empty.

Comment on lines +170 to +176
List<FaultEvent> indexedNextEffects = IntStream.range(0, treePathList.size())
.boxed()
.map(index -> Pair.of(treePathList.get(index), index))
.filter(pair -> !pair.getFirst().getUri().equals(treeRoot.getUri()))
.filter(pair -> r.getEffects().contains(pair.getFirst().getUri()))
.filter(pair -> !pair.getFirst().getUri().equals(functionFailure.getUri()))
.filter(pair -> !pair.getFirst().getUri().toString().equals(localEffectUriCopy))
.map(treePathList::get)
.filter(faultE -> !faultE.getUri().equals(treeRoot.getUri()))
.filter(faultE -> r.getEffects().contains(faultE.getUri()))
.filter(faultE -> !faultE.getUri().equals(functionFailure.getUri()))
.filter(faultE -> !faultE.getUri().toString().equals(localEffectUri))
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This could lead to wrong effects. I suggest to make a sub list of the treePathList:
treePathList.subList(localEffectIndex +1, treePathList.length - 1)

@@ -154,39 +154,37 @@ private List<Map<String, Object>> computeTableRows(FailureModesTable table, List
.stream()
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line #119 - question for optimization - this line will search for a path between the root and the leaf in the tree. Isn't the path already found and stored in the local variable FailureModesRow r? Or maybe this is necessary because the path might have changed?

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