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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 "feed_handler_stats.h"
#include <vespa/searchcore/proton/metrics/documentdb_tagged_metrics.h>
#include <vespa/vespalib/stllike/cache_stats.h>
#include <optional>
namespace proton {
class AttributeUsageFilter;
class DDBState;
class DocumentDBJobTrackers;
class DocumentSubDBCollection;
class ExecutorThreadingService;
class ExecutorThreadingServiceStats;
class FeedHandler;
/**
* Class used to update metrics for a document db.
*/
class DocumentDBMetricsUpdater {
public:
struct DocumentStoreCacheStats {
vespalib::CacheStats readySubDb;
vespalib::CacheStats notReadySubDb;
vespalib::CacheStats removedSubDb;
DocumentStoreCacheStats() : readySubDb(), notReadySubDb(), removedSubDb() {}
};
private:
const DocumentSubDBCollection &_subDBs;
ExecutorThreadingService &_writeService;
DocumentDBJobTrackers &_jobTrackers;
const AttributeUsageFilter &_writeFilter;
FeedHandler &_feed_handler;
// Last updated document store cache statistics. Necessary due to metrics implementation is upside down.
DocumentStoreCacheStats _lastDocStoreCacheStats;
std::optional<FeedHandlerStats> _last_feed_handler_stats;
void updateMiscMetrics(DocumentDBTaggedMetrics &metrics, const ExecutorThreadingServiceStats &threadingServiceStats);
void updateAttributeResourceUsageMetrics(DocumentDBTaggedMetrics::AttributeMetrics &metrics);
public:
DocumentDBMetricsUpdater(const DocumentSubDBCollection &subDBs,
ExecutorThreadingService &writeService,
DocumentDBJobTrackers &jobTrackers,
const AttributeUsageFilter &writeFilter,
FeedHandler& feed_handler);
~DocumentDBMetricsUpdater();
void updateMetrics(const metrics::MetricLockGuard & guard, DocumentDBTaggedMetrics &metrics);
};
}
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