Collection* Database::createCollection(OperationContext* txn,
StringData ns,
const CollectionOptions& options,
bool createIdIndex) {
invariant(txn->lockState()->isDbLockedForMode(name(), MODE_X));
invariant(!options.isView());
NamespaceString nss(ns);
_checkCanCreateCollection(nss, options);
audit::logCreateCollection(&cc(), ns);
txn->recoveryUnit()->registerChange(new AddCollectionChange(txn, this, ns));
Status status = _dbEntry->createCollection(txn, ns, options, true /*allocateDefaultSpace*/);
massertNoTraceStatusOK(status);
Collection* collection = _getOrCreateCollectionInstance(txn, ns);
invariant(collection);
_collections[ns] = collection;
if (createIdIndex) {
if (collection->requiresIdIndex()) {
if (options.autoIndexId == CollectionOptions::YES ||
options.autoIndexId == CollectionOptions::DEFAULT) {
// The creation of the _id index isn't replicated and is instead implicit in the
// creation of the collection. This means that the version of the _id index to build
// is technically unspecified. However, we're able to use the
// featureCompatibilityVersion of this server to determine the default index version
// to use because we apply commands (opType == 'c') in their own batch. This
// guarantees the write to the admin.system.version collection from the
// "setFeatureCompatibilityVersion" command either happens entirely before the
// collection creation or it happens entirely after.
const auto featureCompatibilityVersion =
serverGlobalParams.featureCompatibilityVersion.load();
IndexCatalog* ic = collection->getIndexCatalog();
uassertStatusOK(ic->createIndexOnEmptyCollection(
txn, ic->getDefaultIdIndexSpec(featureCompatibilityVersion)));
}
}
if (nss.isSystem()) {
authindex::createSystemIndexes(txn, collection);
}
}
auto opObserver = getGlobalServiceContext()->getOpObserver();
if (opObserver)
opObserver->onCreateCollection(txn, nss, options);
return collection;
}
Collection* Database::createCollection(OperationContext* txn,
StringData ns,
const CollectionOptions& options,
bool createIdIndex,
const BSONObj& idIndex) {
invariant(txn->lockState()->isDbLockedForMode(name(), MODE_X));
invariant(!options.isView());
NamespaceString nss(ns);
_checkCanCreateCollection(nss, options);
audit::logCreateCollection(&cc(), ns);
Status status = _dbEntry->createCollection(txn, ns, options, true /*allocateDefaultSpace*/);
massertNoTraceStatusOK(status);
txn->recoveryUnit()->registerChange(new AddCollectionChange(txn, this, ns));
Collection* collection = _getOrCreateCollectionInstance(txn, ns);
invariant(collection);
_collections[ns] = collection;
BSONObj fullIdIndexSpec;
if (createIdIndex) {
if (collection->requiresIdIndex()) {
if (options.autoIndexId == CollectionOptions::YES ||
options.autoIndexId == CollectionOptions::DEFAULT) {
const auto featureCompatibilityVersion =
serverGlobalParams.featureCompatibility.version.load();
IndexCatalog* ic = collection->getIndexCatalog();
fullIdIndexSpec = uassertStatusOK(ic->createIndexOnEmptyCollection(
txn,
!idIndex.isEmpty() ? idIndex
: ic->getDefaultIdIndexSpec(featureCompatibilityVersion)));
}
}
if (nss.isSystem()) {
authindex::createSystemIndexes(txn, collection);
}
}
auto opObserver = getGlobalServiceContext()->getOpObserver();
if (opObserver)
opObserver->onCreateCollection(txn, nss, options, fullIdIndexSpec);
return collection;
}
Status Database::createView(OperationContext* txn,
StringData ns,
const CollectionOptions& options) {
invariant(txn->lockState()->isDbLockedForMode(name(), MODE_X));
invariant(options.isView());
NamespaceString nss(ns);
NamespaceString viewOnNss(nss.db(), options.viewOn);
_checkCanCreateCollection(nss, options);
audit::logCreateCollection(&cc(), ns);
if (nss.isOplog())
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid namespace name for a view: " + nss.toString());
return _views.createView(txn, nss, viewOnNss, BSONArray(options.pipeline), options.collation);
}