1 files changed, 72 insertions, 0 deletions
diff --git a/src/mongo/db/catalog/virtual_collection_impl.cpp b/src/mongo/db/catalog/virtual_collection_impl.cpp
new file mode 100644
index 00000000000..1c7e2f4e341
--- /dev/null
+++ b/src/mongo/db/catalog/virtual_collection_impl.cpp
@@ -0,0 +1,72 @@
+/**
+ *    Copyright (C) 2022-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#include "mongo/db/catalog/virtual_collection_impl.h"
+
+#include "mongo/db/catalog/collection_impl.h"
+#include "mongo/db/catalog/collection_options.h"
+#include "mongo/db/operation_context.h"
+#include "mongo/db/storage/external_record_store.h"
+
+#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kStorage
+
+namespace mongo {
+VirtualCollectionImpl::VirtualCollectionImpl(OperationContext* opCtx,
+                                             const NamespaceString& nss,
+                                             const CollectionOptions& options,
+                                             std::unique_ptr<ExternalRecordStore> recordStore)
+    : _nss(nss),
+      _options(options),
+      _recordStore(std::move(recordStore)),
+      _collator(CollectionImpl::parseCollation(opCtx, nss, options.collation)) {
+    tassert(6968503,
+            "Cannot create _id index for a virtual collection",
+            options.autoIndexId == CollectionOptions::NO && options.idIndex.isEmpty());
+}
+
+std::shared_ptr<Collection> VirtualCollectionImpl::make(OperationContext* opCtx,
+                                                        const NamespaceString& nss,
+                                                        const CollectionOptions& options,
+                                                        const VirtualCollectionOptions& vopts) {
+    return std::make_shared<VirtualCollectionImpl>(
+        opCtx, nss, options, std::make_unique<ExternalRecordStore>(nss.ns(), vopts));
+}
+
+std::unique_ptr<PlanExecutor, PlanExecutor::Deleter> VirtualCollectionImpl::makePlanExecutor(
+    OperationContext* opCtx,
+    const CollectionPtr& yieldableCollection,
+    PlanYieldPolicy::YieldPolicy yieldPolicy,
+    ScanDirection scanDirection,
+    const boost::optional<RecordId>& resumeAfterRecordId) const {
+    // TODO SERVER-69683 Implement this function when implementing MultiBsonStreamCursor since
+    // we can scan when it's done. We don't support scan yet.
+    unimplementedTasserted();
+    return nullptr;
+}
+}  // namespace mongo