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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "processallhandler.h"
#include "mergehandler.h"
#include "asynchandler.h"
#include "persistenceutil.h"
#include "splitjoinhandler.h"
#include "simplemessagehandler.h"
#include <vespa/storage/common/storagecomponent.h>
#include <vespa/vespalib/util/isequencedtaskexecutor.h>
#include <vespa/config-stor-filestor.h>
#include <atomic>
namespace storage {
class BucketOwnershipNotifier;
/**
* Handle all messages destined for the persistence layer. The detailed handling
* happens in other handlers, but is forked out after common setup has been done.
* Currently metrics are updated so each thread should have its own instance.
*/
class PersistenceHandler : public Types
{
public:
PersistenceHandler(vespalib::ISequencedTaskExecutor &, const ServiceLayerComponent & component,
const vespa::config::content::StorFilestorConfig &, spi::PersistenceProvider &,
FileStorHandler &, BucketOwnershipNotifier &, FileStorThreadMetrics&);
~PersistenceHandler();
void processLockedMessage(FileStorHandler::LockedMessage lock) const;
//TODO Rewrite tests to avoid this api leak
const AsyncHandler & asyncHandler() const { return _asyncHandler; }
const SplitJoinHandler & splitjoinHandler() const { return _splitJoinHandler; }
const SimpleMessageHandler & simpleMessageHandler() const { return _simpleHandler; }
void set_throttle_merge_feed_ops(bool throttle) noexcept;
private:
// Message handling functions
MessageTracker::UP handleCommandSplitByType(api::StorageCommand&, MessageTracker::UP tracker) const;
MessageTracker::UP handleReply(api::StorageReply&, MessageTracker::UP) const;
MessageTracker::UP processMessage(api::StorageMessage& msg, MessageTracker::UP tracker) const;
const framework::Clock & _clock;
PersistenceUtil _env;
ProcessAllHandler _processAllHandler;
MergeHandler _mergeHandler;
AsyncHandler _asyncHandler;
SplitJoinHandler _splitJoinHandler;
SimpleMessageHandler _simpleHandler;
};
} // storage
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