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#pragma once
#include <Coordination/KeeperFeatureFlags.h>
#include <Disks/DiskSelector.h>
#include <IO/WriteBufferFromString.h>
#include <Poco/Util/AbstractConfiguration.h>
#include <cstdint>
#include <memory>
namespace DB
{
class KeeperDispatcher;
class KeeperContext
{
public:
explicit KeeperContext(bool standalone_keeper_);
enum class Phase : uint8_t
{
INIT,
RUNNING,
SHUTDOWN
};
void initialize(const Poco::Util::AbstractConfiguration & config, KeeperDispatcher * dispatcher_);
Phase getServerState() const;
void setServerState(Phase server_state_);
bool ignoreSystemPathOnStartup() const;
bool digestEnabled() const;
void setDigestEnabled(bool digest_enabled_);
DiskPtr getLatestLogDisk() const;
DiskPtr getLogDisk() const;
std::vector<DiskPtr> getOldLogDisks() const;
void setLogDisk(DiskPtr disk);
DiskPtr getLatestSnapshotDisk() const;
DiskPtr getSnapshotDisk() const;
std::vector<DiskPtr> getOldSnapshotDisks() const;
void setSnapshotDisk(DiskPtr disk);
DiskPtr getStateFileDisk() const;
void setStateFileDisk(DiskPtr disk);
const std::unordered_map<std::string, std::string> & getSystemNodesWithData() const;
const KeeperFeatureFlags & getFeatureFlags() const;
void dumpConfiguration(WriteBufferFromOwnString & buf) const;
constexpr KeeperDispatcher * getDispatcher() const { return dispatcher; }
private:
/// local disk defined using path or disk name
using Storage = std::variant<DiskPtr, std::string>;
void initializeFeatureFlags(const Poco::Util::AbstractConfiguration & config);
void initializeDisks(const Poco::Util::AbstractConfiguration & config);
Storage getLogsPathFromConfig(const Poco::Util::AbstractConfiguration & config) const;
Storage getSnapshotsPathFromConfig(const Poco::Util::AbstractConfiguration & config) const;
Storage getStatePathFromConfig(const Poco::Util::AbstractConfiguration & config) const;
DiskPtr getDisk(const Storage & storage) const;
Phase server_state{Phase::INIT};
bool ignore_system_path_on_startup{false};
bool digest_enabled{true};
std::shared_ptr<DiskSelector> disk_selector;
Storage log_storage;
Storage latest_log_storage;
Storage snapshot_storage;
Storage latest_snapshot_storage;
Storage state_file_storage;
std::vector<std::string> old_log_disk_names;
std::vector<std::string> old_snapshot_disk_names;
bool standalone_keeper;
std::unordered_map<std::string, std::string> system_nodes_with_data;
KeeperFeatureFlags feature_flags;
KeeperDispatcher * dispatcher{nullptr};
};
using KeeperContextPtr = std::shared_ptr<KeeperContext>;
}
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