AthenaPoolAddressProviderSvc.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ATHENAPOOLADDRESSPROVIEDERSVC_H
#define ATHENAPOOLADDRESSPROVIEDERSVC_H

 
#include "GaudiKernel/ServiceHandle.h"
#include "Gaudi/Property.h"  // no forward decl: typedef
 
#include "AthenaKernel/IAddressProvider.h"
#include "AthenaBaseComps/AthService.h"
#include "PersistentDataModel/Guid.h"
 
#include <string>
#include <unordered_set>
 
class IClassIDSvc;

class AthenaPoolAddressProviderSvc : public extends<AthService, IAddressProvider> {
public: // Constructor and Destructor
   AthenaPoolAddressProviderSvc(const std::string& name, ISvcLocator* pSvcLocator);
   virtual ~AthenaPoolAddressProviderSvc();

   virtual StatusCode initialize() override;

   virtual StatusCode preLoadAddresses(StoreID::type storeID, IAddressProvider::tadList& tads) override;

   virtual StatusCode loadAddresses(StoreID::type storeID, IAddressProvider::tadList& tads) override;

   virtual StatusCode updateAddress(StoreID::type storeID, SG::TransientAddress* tad,
                                    const EventContext& ctx) override;
 
private: // data
   ServiceHandle<StoreGateSvc> m_metaDataStore;
   ServiceHandle<IClassIDSvc> m_clidSvc;
   Guid m_guid;
   std::unordered_set<std::string> m_dhFormKeys;
 
private: // properties
   Gaudi::Property<std::string> m_dataHeaderKey{this, "DataHeaderKey", "EventSelector",
       "StoreGate key of event entry object"};
 
   Gaudi::Property<std::string> m_attrListKey{this, "AttributeListKey", {},
     "Attribute list key of a secondary input file. If non-zero, creates a new IOpaqueAddress for that file and records it."};
 
private: // internal helper functions
   StoreGateSvc* eventStore() const;
};
 
#endif