BSONObj getErrorLabels(const OperationSessionInfoFromClient& sessionOptions,
const std::string& commandName,
ErrorCodes::Error code,
bool hasWriteConcernError) {
BSONArrayBuilder labelArray;
// Note that we only apply the TransientTxnError label if the "autocommit" field is present in
// the session options. When present, "autocommit" will always be false, so we don't check its
// value.
if (sessionOptions.getAutocommit() &&
isTransientTransactionError(code,
hasWriteConcernError,
commandName == "commitTransaction" ||
commandName == "coordinateCommitTransaction")) {
// An error code for which isTransientTransactionError() is true indicates a transaction
// failure with no persistent side effects.
labelArray << txn::TransientTxnErrorFieldName;
}
if (ErrorCodes::isNonResumableChangeStreamError(code)) {
labelArray << "NonResumableChangeStreamError";
}
return (labelArray.arrSize() > 0) ? BSON("errorLabels" << labelArray.arr()) : BSONObj();
}
void validateSessionOptions(const OperationSessionInfoFromClient& sessionOptions,
StringData cmdName,
StringData dbname) {
if (sessionOptions.getAutocommit()) {
uassertStatusOK(CommandHelpers::canUseTransactions(dbname, cmdName));
}
if (sessionOptions.getTxnNumber()) {
uassert(50768,
str::stream() << "It is illegal to provide a txnNumber for command " << cmdName,
commandCanCheckOutSession(cmdName) || shouldCommandSkipSessionCheckout(cmdName));
}
if (sessionOptions.getStartTransaction()) {
uassert(ErrorCodes::OperationNotSupportedInTransaction,
"Cannot run killCursors as the first operation in a multi-document transaction.",
cmdName != "killCursors");
}
}
