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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/document/bucket/bucketid.h>
#include "ibucketmodifiedhandler.h"
#include "ibucketstatecalculator.h"
#include "iclusterstatechangednotifier.h"
#include <vespa/persistence/spi/clusterstate.h>
#include <vespa/searchcore/proton/persistenceengine/resulthandler.h>
#include <vespa/vespalib/util/threadstackexecutorbase.h>
#include <set>
namespace proton {
/**
* Class handling operations in IPersistenceHandler that are dealing with
* that the cluster state is changing.
*/
class ClusterStateHandler : public IBucketModifiedHandler,
public IClusterStateChangedNotifier
{
private:
vespalib::Executor &_executor;
std::vector<IClusterStateChangedHandler *> _changedHandlers;
// storage::spi::BucketIdListResult::List _modifiedBuckets;
std::set<document::BucketId> _modifiedBuckets;
void performSetClusterState(const storage::spi::ClusterState *calc, IGenericResultHandler *resultHandler);
void performGetModifiedBuckets(IBucketIdListResultHandler *resultHandler);
// Implements IBucketModifiedHandler
void notifyBucketModified(const document::BucketId &bucket) override;
public:
ClusterStateHandler(vespalib::Executor &executor);
~ClusterStateHandler() override;
void addClusterStateChangedHandler(IClusterStateChangedHandler *handler) override;
void removeClusterStateChangedHandler(IClusterStateChangedHandler *handler) override;
/**
* Implements the cluster state aspect of IPersistenceHandler.
*/
void handleSetClusterState(const storage::spi::ClusterState &calc, IGenericResultHandler &resultHandler);
void handleGetModifiedBuckets(IBucketIdListResultHandler &resultHandler);
};
} // namespace proton
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