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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 <vector>
#include <vespa/storage/distributor/maintenance/maintenanceoperation.h>
#include <vespa/storage/distributor/maintenance/node_maintenance_stats_tracker.h>
namespace storage::distributor {
class MaintenanceOperationGenerator
{
public:
virtual ~MaintenanceOperationGenerator() = default;
/**
* Generate and return the highest prioritized maintenance operation for
* the given bucket. If the bucket does not need maintenance, a nullptr
* shared_ptr is returned.
*/
virtual MaintenanceOperation::SP generate(const document::Bucket &bucket) const = 0;
/**
* Generate all possible maintenance operations for the given bucket and
* return these, ordered by priority in decreasing order. If the bucket
* does not need maintenance, the returned vector will be empty.
*/
virtual std::vector<MaintenanceOperation::SP> generateAll(
const document::Bucket &bucket,
NodeMaintenanceStatsTracker &statsTracker) const = 0;
/**
* Convenience wrapper around generateAll() for when there's no need for
* an explicit stats tracker
*/
std::vector<MaintenanceOperation::SP> generateAll(const document::Bucket &bucket) const
{
NodeMaintenanceStatsTracker dummyTracker;
return generateAll(bucket, dummyTracker);
}
};
} // storage::distributor
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