Status ViewCatalog::createView(OperationContext* txn,
const NamespaceString& viewName,
const NamespaceString& viewOn,
const BSONArray& pipeline) {
stdx::lock_guard<stdx::mutex> lk(_mutex);
if (!enableViews)
return Status(ErrorCodes::CommandNotSupported, "View support not enabled");
if (viewName.db() != viewOn.db())
return Status(ErrorCodes::BadValue,
"View must be created on a view or collection in the same database");
if (_lookup_inlock(txn, StringData(viewName.ns())))
return Status(ErrorCodes::NamespaceExists, "Namespace already exists");
if (!NamespaceString::validCollectionName(viewOn.coll()))
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid name for 'viewOn': " << viewOn.coll());
// TODO(SERVER-24768): Need to ensure view is correct and doesn't introduce a cycle.
_createOrUpdateView_inlock(txn, viewName, viewOn, pipeline);
return Status::OK();
}
Status ViewCatalog::modifyView(OperationContext* opCtx,
const NamespaceString& viewName,
const NamespaceString& viewOn,
const BSONArray& pipeline) {
stdx::lock_guard<stdx::mutex> lk(_mutex);
if (viewName.db() != viewOn.db())
return Status(ErrorCodes::BadValue,
"View must be created on a view or collection in the same database");
auto viewPtr = _lookup_inlock(opCtx, viewName.ns());
if (!viewPtr)
return Status(ErrorCodes::NamespaceNotFound,
str::stream() << "cannot modify missing view " << viewName.ns());
if (!NamespaceString::validCollectionName(viewOn.coll()))
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid name for 'viewOn': " << viewOn.coll());
ViewDefinition savedDefinition = *viewPtr;
opCtx->recoveryUnit()->onRollback([this, viewName, savedDefinition]() {
this->_viewMap[viewName.ns()] = std::make_shared<ViewDefinition>(savedDefinition);
});
return _createOrUpdateView_inlock(
opCtx,
viewName,
viewOn,
pipeline,
CollatorInterface::cloneCollator(savedDefinition.defaultCollator()));
}
Status ViewCatalog::createView(OperationContext* opCtx,
const NamespaceString& viewName,
const NamespaceString& viewOn,
const BSONArray& pipeline,
const BSONObj& collation) {
stdx::lock_guard<stdx::mutex> lk(_mutex);
if (viewName.db() != viewOn.db())
return Status(ErrorCodes::BadValue,
"View must be created on a view or collection in the same database");
if (_lookup_inlock(opCtx, StringData(viewName.ns())))
return Status(ErrorCodes::NamespaceExists, "Namespace already exists");
if (!NamespaceString::validCollectionName(viewOn.coll()))
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid name for 'viewOn': " << viewOn.coll());
if (viewName.isSystem())
return Status(
ErrorCodes::InvalidNamespace,
"View name cannot start with 'system.', which is reserved for system namespaces");
auto collator = parseCollator(opCtx, collation);
if (!collator.isOK())
return collator.getStatus();
return _createOrUpdateView_inlock(
opCtx, viewName, viewOn, pipeline, std::move(collator.getValue()));
}
Status ViewCatalog::modifyView(OperationContext* txn,
const NamespaceString& viewName,
const NamespaceString& viewOn,
const BSONArray& pipeline) {
stdx::lock_guard<stdx::mutex> lk(_mutex);
if (serverGlobalParams.featureCompatibilityVersion.load() ==
ServerGlobalParams::FeatureCompatibilityVersion_32) {
return Status(ErrorCodes::CommandNotSupported,
"Cannot modify view when the featureCompatibilityVersion is 3.2. See "
"http://dochub.mongodb.org/core/3.4-feature-compatibility.");
}
if (viewName.db() != viewOn.db())
return Status(ErrorCodes::BadValue,
"View must be created on a view or collection in the same database");
auto viewPtr = _lookup_inlock(txn, viewName.ns());
if (!viewPtr)
return Status(ErrorCodes::NamespaceNotFound,
str::stream() << "cannot modify missing view " << viewName.ns());
if (!NamespaceString::validCollectionName(viewOn.coll()))
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid name for 'viewOn': " << viewOn.coll());
ViewDefinition savedDefinition = *viewPtr;
txn->recoveryUnit()->onRollback([this, txn, viewName, savedDefinition]() {
this->_viewMap[viewName.ns()] = std::make_shared<ViewDefinition>(savedDefinition);
});
return _createOrUpdateView_inlock(txn, viewName, viewOn, pipeline);
}
Status ViewCatalog::createView(OperationContext* txn,
const NamespaceString& viewName,
const NamespaceString& viewOn,
const BSONArray& pipeline) {
stdx::lock_guard<stdx::mutex> lk(_mutex);
if (serverGlobalParams.featureCompatibilityVersion.load() ==
ServerGlobalParams::FeatureCompatibilityVersion_32) {
return Status(ErrorCodes::CommandNotSupported,
"Cannot create view when the featureCompatibilityVersion is 3.2. See "
"http://dochub.mongodb.org/core/3.4-feature-compatibility.");
}
if (viewName.db() != viewOn.db())
return Status(ErrorCodes::BadValue,
"View must be created on a view or collection in the same database");
if (_lookup_inlock(txn, StringData(viewName.ns())))
return Status(ErrorCodes::NamespaceExists, "Namespace already exists");
if (!NamespaceString::validCollectionName(viewOn.coll()))
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid name for 'viewOn': " << viewOn.coll());
return _createOrUpdateView_inlock(txn, viewName, viewOn, pipeline);
}
Status ViewCatalog::modifyView(OperationContext* txn,
const NamespaceString& viewName,
const NamespaceString& viewOn,
const BSONArray& pipeline) {
stdx::lock_guard<stdx::mutex> lk(_mutex);
if (viewName.db() != viewOn.db())
return Status(ErrorCodes::BadValue,
"View must be created on a view or collection in the same database");
if (!_lookup_inlock(txn, StringData(viewName.ns())))
return Status(ErrorCodes::NamespaceNotFound,
str::stream() << "cannot modify missing view " << viewName.ns());
if (!NamespaceString::validCollectionName(viewOn.coll()))
return Status(ErrorCodes::InvalidNamespace,
str::stream() << "invalid name for 'viewOn': " << viewOn.coll());
_createOrUpdateView_inlock(txn, viewName, viewOn, pipeline);
return Status::OK();
}
