private void assertConsistentYoungestChild(
final FacetLabel abPath,
final int abOrd,
final int abYoungChildBase1,
final int abYoungChildBase2,
final int retry,
int numCategories)
throws Exception {
SlowRAMDirectory indexDir = new SlowRAMDirectory(-1, null); // no slowness for intialization
TaxonomyWriter tw = new DirectoryTaxonomyWriter(indexDir);
tw.addCategory(new FacetLabel("a", "0"));
tw.addCategory(abPath);
tw.commit();
final DirectoryTaxonomyReader tr = new DirectoryTaxonomyReader(indexDir);
for (int i = 0; i < numCategories; i++) {
final FacetLabel cp = new FacetLabel("a", "b", Integer.toString(i));
tw.addCategory(cp);
assertEquals(
"Ordinal of " + cp + " must be invalid until Taxonomy Reader was refreshed",
TaxonomyReader.INVALID_ORDINAL,
tr.getOrdinal(cp));
}
tw.close();
final AtomicBoolean stop = new AtomicBoolean(false);
final Throwable[] error = new Throwable[] {null};
final int retrieval[] = {0};
Thread thread =
new Thread("Child Arrays Verifier") {
@Override
public void run() {
setPriority(1 + getPriority());
try {
while (!stop.get()) {
int lastOrd = tr.getParallelTaxonomyArrays().parents().length - 1;
assertNotNull(
"path of last-ord " + lastOrd + " is not found!", tr.getPath(lastOrd));
assertChildrenArrays(tr.getParallelTaxonomyArrays(), retry, retrieval[0]++);
sleep(10); // don't starve refresh()'s CPU, which sleeps every 50 bytes for 1 ms
}
} catch (Throwable e) {
error[0] = e;
stop.set(true);
}
}
private void assertChildrenArrays(ParallelTaxonomyArrays ca, int retry, int retrieval) {
final int abYoungChild = ca.children()[abOrd];
assertTrue(
"Retry "
+ retry
+ ": retrieval: "
+ retrieval
+ ": wrong youngest child for category "
+ abPath
+ " (ord="
+ abOrd
+ ") - must be either "
+ abYoungChildBase1
+ " or "
+ abYoungChildBase2
+ " but was: "
+ abYoungChild,
abYoungChildBase1 == abYoungChild || abYoungChildBase2 == ca.children()[abOrd]);
}
};
thread.start();
indexDir.setSleepMillis(1); // some delay for refresh
TaxonomyReader newTaxoReader = TaxonomyReader.openIfChanged(tr);
if (newTaxoReader != null) {
newTaxoReader.close();
}
stop.set(true);
thread.join();
assertNull(
"Unexpcted exception at retry "
+ retry
+ " retrieval "
+ retrieval[0]
+ ": \n"
+ stackTraceStr(error[0]),
error[0]);
tr.close();
}
