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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 "iclusterstatechangedhandler.h"
#include "ibucketstatechangednotifier.h"
#include <vespa/searchcore/proton/documentmetastore/i_bucket_handler.h>
#include <vespa/searchcore/proton/persistenceengine/resulthandler.h>
#include <vespa/vespalib/util/executor.h>
namespace proton {
class IBucketStateChangedhandler;
/**
* Class handling bucket operations in IPersistenceHandler that are not persisted
* in the transaction log for a document database.
*/
class BucketHandler : public IClusterStateChangedHandler,
public IBucketStateChangedNotifier
{
private:
vespalib::Executor &_executor;
documentmetastore::IBucketHandler *_ready;
std::vector<IBucketStateChangedHandler *> _changedHandlers;
bool _nodeUp;
void performSetCurrentState(document::BucketId bucketId,
storage::spi::BucketInfo::ActiveState newState,
IGenericResultHandler *resultHandler);
void performPopulateActiveBuckets(document::BucketId::List buckets,
IGenericResultHandler *resultHandler);
/**
* Deactivate all active buckets when this node transitions from
* up to down in cluster state. Called by document db executor thread.
*/
void deactivateAllActiveBuckets();
public:
/**
* Create a new bucket handler.
*
* @param executor The executor in which to run all tasks.
*/
BucketHandler(vespalib::Executor &executor);
~BucketHandler() override;
void setReadyBucketHandler(documentmetastore::IBucketHandler &ready);
/**
* Implements the bucket aspect of IPersistenceHandler.
*/
void handleListBuckets(IBucketIdListResultHandler &resultHandler);
void handleSetCurrentState(const document::BucketId &bucketId,
storage::spi::BucketInfo::ActiveState newState,
IGenericResultHandler &resultHandler);
void handleGetBucketInfo(const storage::spi::Bucket &bucket,
IBucketInfoResultHandler &resultHandler);
void handleListActiveBuckets(IBucketIdListResultHandler &resultHandler);
void handlePopulateActiveBuckets(document::BucketId::List &buckets,
IGenericResultHandler &resultHandler);
bool hasBucket(const storage::spi::Bucket &bucket);
// Implements IClusterStateChangedHandler
void notifyClusterStateChanged(const std::shared_ptr<IBucketStateCalculator> &newCalc) override;
// Implement IBucketStateChangedNotifier
void addBucketStateChangedHandler(IBucketStateChangedHandler *handler) override;
void removeBucketStateChangedHandler(IBucketStateChangedHandler *handler) override;
};
} // namespace proton
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