Status IndexBuildInterceptor::_applyWrite(OperationContext* opCtx,
const BSONObj& operation,
const InsertDeleteOptions& options,
int64_t* const keysInserted,
int64_t* const keysDeleted) {
const BSONObj key = operation["key"].Obj();
const RecordId opRecordId = RecordId(operation["recordId"].Long());
const Op opType =
(strcmp(operation.getStringField("op"), "i") == 0) ? Op::kInsert : Op::kDelete;
const BSONObjSet keySet = SimpleBSONObjComparator::kInstance.makeBSONObjSet({key});
auto accessMethod = _indexCatalogEntry->accessMethod();
if (opType == Op::kInsert) {
InsertResult result;
auto status = accessMethod->insertKeys(opCtx,
keySet,
SimpleBSONObjComparator::kInstance.makeBSONObjSet(),
MultikeyPaths{},
opRecordId,
options,
&result);
if (!status.isOK()) {
return status;
}
if (result.dupsInserted.size() &&
options.getKeysMode == IndexAccessMethod::GetKeysMode::kEnforceConstraints) {
status = recordDuplicateKeys(opCtx, result.dupsInserted);
if (!status.isOK()) {
return status;
}
}
int64_t numInserted = result.numInserted;
*keysInserted += numInserted;
opCtx->recoveryUnit()->onRollback(
[keysInserted, numInserted] { *keysInserted -= numInserted; });
} else {
invariant(opType == Op::kDelete);
DEV invariant(strcmp(operation.getStringField("op"), "d") == 0);
int64_t numDeleted;
Status s = accessMethod->removeKeys(opCtx, keySet, opRecordId, options, &numDeleted);
if (!s.isOK()) {
return s;
}
*keysDeleted += numDeleted;
opCtx->recoveryUnit()->onRollback(
[keysDeleted, numDeleted] { *keysDeleted -= numDeleted; });
}
return Status::OK();
}
// Remove the provided doc from the index.
Status AbstractIndexAccessMethod::remove(OperationContext* opCtx,
const BSONObj& obj,
const RecordId& loc,
const InsertDeleteOptions& options,
int64_t* numDeleted) {
invariant(!_btreeState->isBuilding());
invariant(numDeleted);
*numDeleted = 0;
BSONObjSet keys = SimpleBSONObjComparator::kInstance.makeBSONObjSet();
// There's no need to compute the prefixes of the indexed fields that cause the index to be
// multikey when removing a document since the index metadata isn't updated when keys are
// deleted.
BSONObjSet* multikeyMetadataKeys = nullptr;
MultikeyPaths* multikeyPaths = nullptr;
// Relax key constraints on removal when deleting documents with invalid formats, but only
// those that don't apply to the partialIndex filter.
getKeys(
obj, GetKeysMode::kRelaxConstraintsUnfiltered, &keys, multikeyMetadataKeys, multikeyPaths);
return removeKeys(opCtx, keys, loc, options, numDeleted);
}