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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/client/connection_string.h"
#include "mongo/client/remote_command_targeter.h"
#include "mongo/util/net/hostandport.h"
namespace mongo {
class RemoteCommandTargeterMock final : public RemoteCommandTargeter {
public:
RemoteCommandTargeterMock();
virtual ~RemoteCommandTargeterMock();
/**
* Shortcut for unit-tests.
*/
static std::shared_ptr<RemoteCommandTargeterMock> get(
std::shared_ptr<RemoteCommandTargeter> targeter);
/**
* Returns the value last set by setConnectionStringReturnValue.
*/
ConnectionString connectionString() override;
/**
* Returns the return value last set by setFindHostReturnValue.
* Returns ErrorCodes::InternalError if setFindHostReturnValue was never called.
*/
SemiFuture<HostAndPort> findHostWithMaxWait(const ReadPreferenceSetting& readPref,
Milliseconds maxWait) override;
SemiFuture<std::vector<HostAndPort>> findHostsWithMaxWait(const ReadPreferenceSetting& readPref,
Milliseconds maxWait) override;
StatusWith<HostAndPort> findHost(OperationContext* opCtx,
const ReadPreferenceSetting& readPref) override;
/**
* Adds host to a set of hosts marked down, otherwise a no-op.
*/
void markHostNotMaster(const HostAndPort& host, const Status& status) override;
/**
* Adds host to a set of hosts marked down, otherwise a no-op.
*/
void markHostUnreachable(const HostAndPort& host, const Status& status) override;
/**
* Sets the return value for the next call to connectionString.
*/
void setConnectionStringReturnValue(const ConnectionString returnValue);
/**
* Sets the return value for the next call to findHost.
*/
void setFindHostReturnValue(StatusWith<HostAndPort> returnValue);
void setFindHostsReturnValue(StatusWith<std::vector<HostAndPort>> returnValue);
/**
* Returns the current set of hosts marked down and resets the mock's internal list of marked
* down hosts.
*/
std::set<HostAndPort> getAndClearMarkedDownHosts();
private:
ConnectionString _connectionStringReturnValue;
StatusWith<std::vector<HostAndPort>> _findHostReturnValue;
// Protects _hostsMarkedDown.
mutable Mutex _mutex = MONGO_MAKE_LATCH("RemoteCommandTargeterMock::_mutex");
// HostAndPorts marked not master or unreachable. Meant to verify a code path updates the
// RemoteCommandTargeterMock.
std::set<HostAndPort> _hostsMarkedDown;
};
} // namespace mongo
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