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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 <memory>
#include <vector>
#include "mongo/db/namespace_string.h"
#include "mongo/s/catalog/type_shard.h"
#include "mongo/s/sharding_router_test_fixture.h"
namespace mongo {
class CatalogCacheTestFixture : public ShardingTestFixture {
protected:
void setUp() override;
/**
* Returns a chunk manager for the specified namespace with chunks at the specified split
* points as well as a global index cache with the specified global indexes. Each individual
* chunk is placed on a separate shard with shard id being a single number ranging from "0" to
* the number of chunks.
*/
CollectionRoutingInfo makeCollectionRoutingInfo(
const NamespaceString& nss,
const ShardKeyPattern& shardKeyPattern,
std::unique_ptr<CollatorInterface> defaultCollator,
bool unique,
const std::vector<BSONObj>& splitPoints,
const std::vector<BSONObj>& globalIndexes,
boost::optional<ReshardingFields> reshardingFields = boost::none);
/**
* Invalidates the catalog cache for 'kNss' and schedules a thread to invoke the blocking 'get'
* call, returning a future which can be obtained to get the specified routing information.
*
* The notion of 'forced' in the function name implies that we will always indicate to the
* catalog cache that a refresh will happen.
*
* NOTE: The returned value is always set. The reason to use optional is a deficiency of
* std::future with the MSVC STL library, which requires the templated type to be default
* constructible.
*/
executor::NetworkTestEnv::FutureHandle<boost::optional<CollectionRoutingInfo>>
scheduleRoutingInfoForcedRefresh(const NamespaceString& nss);
/**
* Gets the routing information from the catalog cache. Unforced means the refresh will only
* happen if the cache has been invalidated elsewhere.
*
* NOTE: The returned value is always set. The reason to use optional is a deficiency of
* std::future with the MSVC STL library, which requires the templated type to be default
* constructible.
*/
executor::NetworkTestEnv::FutureHandle<boost::optional<CollectionRoutingInfo>>
scheduleRoutingInfoUnforcedRefresh(const NamespaceString& nss);
/**
* Advance the time in the cache for 'kNss' and schedules a thread to make an incremental
* refresh.
*
* NOTE: The returned value is always set. The reason to use optional is a deficiency of
* std::future with the MSVC STL library, which requires the templated type to be default
* constructible.
*/
executor::NetworkTestEnv::FutureHandle<boost::optional<CollectionRoutingInfo>>
scheduleRoutingInfoIncrementalRefresh(const NamespaceString& nss);
/**
* Ensures that there are 'numShards' available in the shard registry. The shard ids are
* generated as "0", "1", etc.
*
* Returns the mock shard descriptors that were used for the setup.
*/
std::vector<ShardType> setupNShards(int numShards);
/**
* Triggers a refresh for the given namespace and mocks network calls to simulate loading
* metadata with two chunks: [minKey, 0) and [0, maxKey) on two shards with ids: "0" and "1".
*/
ChunkManager loadRoutingTableWithTwoChunksAndTwoShards(NamespaceString nss);
/**
* Same as the above method but the sharding key is hashed.
*/
ChunkManager loadRoutingTableWithTwoChunksAndTwoShardsHash(NamespaceString nss);
/**
* The common implementation for any shard key.
*/
ChunkManager loadRoutingTableWithTwoChunksAndTwoShardsImpl(
NamespaceString nss,
const BSONObj& shardKey,
boost::optional<std::string> primaryShardId = boost::none,
UUID uuid = UUID::gen(),
OID epoch = OID::gen(),
Timestamp timestamp = Timestamp(1));
/**
* Mocks network responses for loading a sharded database and collection from the config server.
*/
void expectGetDatabase(NamespaceString nss, std::string primaryShard = "0");
void expectGetCollection(NamespaceString nss,
OID epoch,
Timestamp timestamp,
UUID uuid,
const ShardKeyPattern& shardKeyPattern);
void expectCollectionAndChunksAggregation(NamespaceString nss,
OID epoch,
Timestamp timestamp,
UUID uuid,
const ShardKeyPattern& shardKeyPattern,
const std::vector<ChunkType>& chunks);
void expectCollectionAndIndexesAggregation(NamespaceString nss,
OID epoch,
Timestamp timestamp,
UUID uuid,
const ShardKeyPattern& shardKeyPattern,
boost::optional<Timestamp> indexVersion,
const std::vector<BSONObj>& indexes);
const HostAndPort kConfigHostAndPort{"DummyConfig", 1234};
};
} // namespace mongo
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