public void addDimPruningMsgs(
Dimension dim, CubeDimensionTable dimtable, CandidateTablePruneCause msg) {
PruneCauses<CubeDimensionTable> dimMsgs = dimPruningMsgs.get(dim);
if (dimMsgs == null) {
dimMsgs = new PruneCauses<CubeDimensionTable>();
dimPruningMsgs.put(dim, dimMsgs);
}
dimMsgs.addPruningMsg(dimtable, msg);
}
private Set<CandidateFact> pickCandidateFactToQuery() throws LensException {
Set<CandidateFact> facts = null;
if (hasCubeInQuery()) {
if (candidateFactSets.size() > 0) {
facts = candidateFactSets.iterator().next();
log.info(
"Available candidate facts:{}, picking up {} for querying", candidateFactSets, facts);
} else {
String reason = "";
if (!factPruningMsgs.isEmpty()) {
ByteArrayOutputStream out = null;
try {
ObjectMapper mapper = new ObjectMapper();
out = new ByteArrayOutputStream();
mapper.writeValue(out, factPruningMsgs.getJsonObject());
reason = out.toString("UTF-8");
} catch (Exception e) {
throw new LensException("Error writing fact pruning messages", e);
} finally {
if (out != null) {
try {
out.close();
} catch (IOException e) {
throw new LensException(e);
}
}
}
}
log.error(
"Query rewrite failed due to NO_CANDIDATE_FACT_AVAILABLE, Cause {}",
factPruningMsgs.toJsonObject());
throw new NoCandidateFactAvailableException(factPruningMsgs);
}
}
return facts;
}
public void addFactPruningMsgs(CubeFactTable fact, CandidateTablePruneCause factPruningMsg) {
log.info("Pruning fact {} with cause: {}", fact, factPruningMsg);
factPruningMsgs.addPruningMsg(fact, factPruningMsg);
}
