ReadFromFileMetaData.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
//@file ReadFromFileMetaData.h
//@brief Class to read from file metadata and give the results
//@author Shaun Roe
#ifndef IOVDbSvc_ReadFromFileMetaData_h
#define IOVDbSvc_ReadFromFileMetaData_h
 
 
#include "CoolKernel/ValidityKey.h"
#include "AthenaKernel/IOVTime.h"
#include "AthenaKernel/IOVRange.h"
#include <string>
#include "FolderTypes.h"
#include "IOVDbDataModel/IOVPayloadContainer.h"
 
//fwd declarations
class IIOVDbMetaDataTool;
class IOVMetaDataContainer;
class CondAttrListCollection;
class AthenaAttributeList;
 
namespace coral{
  class AttributeList;
}
 
namespace IOVDbNamespace{
  //@brief Encapsulates the functionality to read database quantities from file metadata
  class ReadFromFileMetaData{
  public:
    ReadFromFileMetaData()=delete;
    ReadFromFileMetaData(const ReadFromFileMetaData&)=delete;
    ReadFromFileMetaData& operator=(const ReadFromFileMetaData&)=delete;
    ReadFromFileMetaData(const IOVMetaDataContainer* m_metacon, const IOVTime & refTime, const bool useEpochTimestamp);
    ReadFromFileMetaData(const IOVMetaDataContainer* m_metacon, const cool::ValidityKey & refTimeKey, const bool useEpochTimestamp);
    ~ReadFromFileMetaData();
    //
    //
    bool isValid();
    IOVDbNamespace::FolderType folderType();
    CondAttrListCollection *attrListCollection();
    AthenaAttributeList *attributeList();
    unsigned int numberOfObjects();
    std::string stringAddress();
    bool poolPayloadRequested();
    IOVRange range();
    
  private:
    const IOVMetaDataContainer* m_metaContainer{};
    IOVTime m_referenceTime{};
    const IOVPayloadContainer* m_payload{};
    CondAttrListCollection * m_pptr{};
    AthenaAttributeList * m_attrList{};
    CondAttrListCollection * m_attrListColl{};
    IOVDbNamespace::FolderType m_folderType{UNKNOWN};
    bool m_newedPtr{};
  };
 
 
   class FMDReadLock {
   public:
      FMDReadLock( const FMDReadLock& )=delete;
      void operator=( const FMDReadLock& )=delete;
      FMDReadLock( IIOVDbMetaDataTool* metadatatool );
      ~FMDReadLock();
      IOVMetaDataContainer* findFolder( const std::string& folderName );
     private:
      IIOVDbMetaDataTool* m_metadatatool {};
   };
 
   class SafeReadFromFileMetaData : private FMDReadLock, public ReadFromFileMetaData
   {
   public:
      SafeReadFromFileMetaData( const std::string& folderName,
                                IIOVDbMetaDataTool* metadatatool,
                                const IOVTime & refTime, const bool useEpochTimestamp );
      SafeReadFromFileMetaData( const std::string& folderName,
                                IIOVDbMetaDataTool* metadatatool,
                                const cool::ValidityKey & refTimeKey, const bool useEpochTimestamp);
   };
 
}//namespace
#endif