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Diffstat (limited to 'src/mongo/db/pipeline/document_source_backup_cursor.h')
| -rw-r--r-- | src/mongo/db/pipeline/document_source_backup_cursor.h | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/src/mongo/db/pipeline/document_source_backup_cursor.h b/src/mongo/db/pipeline/document_source_backup_cursor.h deleted file mode 100644 index 5295c9159d8..00000000000 --- a/src/mongo/db/pipeline/document_source_backup_cursor.h +++ /dev/null @@ -1,117 +0,0 @@ -/** - * Copyright (C) 2018 MongoDB Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License, version 3, - * as published by the Free Software Foundation. - * - * 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 - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * 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 GNU Affero General 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. - */ - -#pragma once - -#include <vector> - -#include "mongo/bson/bsonobj.h" -#include "mongo/db/auth/action_set.h" -#include "mongo/db/pipeline/document_source.h" -#include "mongo/db/repl/read_concern_args.h" -#include "mongo/db/storage/backup_cursor_service.h" - -namespace mongo { - -/** - * Represents the `$backupCursor` aggregation stage. The lifetime of this object maps to storage - * engine calls on `beginNonBlockingBackup` and `endNonBlockingBackup`. The DocumentSource will - * return filenames in the running `dbpath` that an application can copy and optionally some - * metadata information. - */ -class DocumentSourceBackupCursor final : public DocumentSource { -public: - static const char* kStageName; - - class LiteParsed final : public LiteParsedDocumentSource { - public: - static std::unique_ptr<LiteParsed> parse(const AggregationRequest& request, - const BSONElement& spec) { - return stdx::make_unique<LiteParsed>(); - } - - stdx::unordered_set<NamespaceString> getInvolvedNamespaces() const final { - return stdx::unordered_set<NamespaceString>(); - } - - PrivilegeVector requiredPrivileges(bool isMongos) const final { - return {Privilege(ResourcePattern::forClusterResource(), ActionSet{ActionType::fsync})}; - } - - bool isInitialSource() const final { - return true; - } - - bool allowedToForwardFromMongos() const final { - return false; - } - - void assertSupportsReadConcern(const repl::ReadConcernArgs& readConcern) const { - uassert(ErrorCodes::InvalidOptions, - str::stream() << "Aggregation stage " << kStageName - << " requires read concern local but found " - << readConcern.toString(), - readConcern.getLevel() == repl::ReadConcernLevel::kLocalReadConcern); - } - }; - - virtual ~DocumentSourceBackupCursor(); - - GetNextResult getNext() final; - - const char* getSourceName() const final { - return kStageName; - } - - Value serialize(boost::optional<ExplainOptions::Verbosity> explain = boost::none) const final; - - StageConstraints constraints(Pipeline::SplitState pipeState) const final { - StageConstraints constraints(StreamType::kStreaming, - PositionRequirement::kFirst, - // This stage `uasserts` on a MongoS; the - // `HostTypeRequirement` field has no effect. - HostTypeRequirement::kAnyShard, - DiskUseRequirement::kNoDiskUse, - FacetRequirement::kNotAllowed, - TransactionRequirement::kNotAllowed); - - constraints.isIndependentOfAnyCollection = true; - constraints.requiresInputDocSource = false; - return constraints; - } - - static boost::intrusive_ptr<DocumentSource> createFromBson( - BSONElement elem, const boost::intrusive_ptr<ExpressionContext>& pExpCtx); - -private: - DocumentSourceBackupCursor(const boost::intrusive_ptr<ExpressionContext>& pExpCtx); - - BackupCursorState _backupCursorState; -}; - -} // namespace mongo |