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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @class storage::RecoveryVisitor
* @ingroup visitors
*
* @brief A recovery visitor is a visitor that sends messages with bucketid
* and a list of minimal documents to the client.
*
*/
#pragma once
#include "visitor.h"
#include <vespa/storageapi/message/datagram.h>
namespace documentapi { class DocumentListMessage; }
namespace storage {
class RecoveryVisitor : public Visitor {
public:
RecoveryVisitor(StorageComponent&, const vdslib::Parameters& params);
private:
void handleDocuments(const document::BucketId& bucketId,
DocEntryList & entries,
HitCounter& hitCounter) override;
void completedBucket(const document::BucketId&, HitCounter&) override;
std::set<std::string> _requestedFields;
using CommandPtr = std::unique_ptr<documentapi::DocumentListMessage>;
using CommandMap = std::map<document::BucketId, CommandPtr>;
CommandMap _activeCommands;
std::mutex _mutex;
};
struct RecoveryVisitorFactory : public VisitorFactory {
VisitorEnvironment::UP
makeVisitorEnvironment(StorageComponent&) override {
return std::make_unique<VisitorEnvironment>();
};
Visitor*
makeVisitor(StorageComponent& c, VisitorEnvironment&, const vdslib::Parameters& params) override
{
return new RecoveryVisitor(c, params);
}
};
}
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