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/**
* Copyright (C) 2018-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.
*/
#pragma once
#include "mongo/s/catalog_cache_loader.h"
#include "mongo/util/concurrency/thread_pool.h"
namespace mongo {
/**
* Mocks the metadata refresh results with settable return values. The purpose of this class is to
* facilitate testing of classes that use a CatalogCacheLoader.
*/
class CatalogCacheLoaderMock final : public CatalogCacheLoader {
CatalogCacheLoaderMock(const CatalogCacheLoaderMock&) = delete;
CatalogCacheLoaderMock& operator=(const CatalogCacheLoaderMock&) = delete;
public:
CatalogCacheLoaderMock() = default;
~CatalogCacheLoaderMock() = default;
/**
* These functions should never be called. They trigger invariants if called.
*/
void initializeReplicaSetRole(bool isPrimary) override;
void onStepDown() override;
void onStepUp() override;
void shutDown() override;
void notifyOfCollectionPlacementVersionUpdate(const NamespaceString& nss) override;
void waitForCollectionFlush(OperationContext* opCtx, const NamespaceString& nss) override;
void waitForDatabaseFlush(OperationContext* opCtx, StringData dbName) override;
SemiFuture<CollectionAndChangedChunks> getChunksSince(const NamespaceString& nss,
ChunkVersion version) override;
SemiFuture<DatabaseType> getDatabase(StringData dbName) override;
/**
* Sets the mocked collection entry result that getChunksSince will use to construct its return
* value.
*/
void setCollectionRefreshReturnValue(StatusWith<CollectionType> statusWithCollectionType);
void clearCollectionReturnValue();
/**
* Sets the mocked chunk results that getChunksSince will use to construct its return value.
*/
void setChunkRefreshReturnValue(StatusWith<std::vector<ChunkType>> statusWithChunks);
void clearChunksReturnValue();
/**
* Sets the mocked database entry result that getDatabase will use to construct its return
* value.
*/
void setDatabaseRefreshReturnValue(StatusWith<DatabaseType> swDatabase);
void clearDatabaseReturnValue();
void setReshardingFields(boost::optional<TypeCollectionReshardingFields> reshardingFields) {
_reshardingFields = std::move(reshardingFields);
}
void setCollectionRefreshValues(
const NamespaceString& nss,
StatusWith<CollectionType> statusWithCollection,
StatusWith<std::vector<ChunkType>> statusWithChunks,
boost::optional<TypeCollectionReshardingFields> reshardingFields) {
_refreshValues[nss] = {statusWithCollection, statusWithChunks, reshardingFields};
}
static const Status kCollectionInternalErrorStatus;
static const Status kChunksInternalErrorStatus;
static const Status kDatabaseInternalErrorStatus;
private:
StatusWith<CollectionType> _swCollectionReturnValue{kCollectionInternalErrorStatus};
StatusWith<std::vector<ChunkType>> _swChunksReturnValue{kChunksInternalErrorStatus};
boost::optional<TypeCollectionReshardingFields> _reshardingFields;
struct RefreshInfo {
StatusWith<CollectionType> swCollectionReturnValue{kCollectionInternalErrorStatus};
StatusWith<std::vector<ChunkType>> swChunksReturnValue{kChunksInternalErrorStatus};
boost::optional<TypeCollectionReshardingFields> reshardingFields;
};
stdx::unordered_map<NamespaceString, RefreshInfo> _refreshValues;
StatusWith<DatabaseType> _swDatabaseReturnValue{kDatabaseInternalErrorStatus};
};
} // namespace mongo
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