ByteStreamMetadataTool.cxx

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/*
   Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
   */

 
#include "ByteStreamMetadataTool.h"
 
#include "ByteStreamData/ByteStreamMetadataContainer.h"
#include "StoreGate/StoreGateSvc.h"
 
 
/******************************************************************************/
ByteStreamMetadataTool::ByteStreamMetadataTool(
    const std::string& type,
    const std::string& name,
    const IInterface* parent)
  : base_class(type, name, parent)
  , m_metadataStore("StoreGateSvc/MetaDataStore", name)
  , m_inputStore   ("StoreGateSvc/InputMetaDataStore", name)
{
}
 
 
/******************************************************************************/
ByteStreamMetadataTool::~ByteStreamMetadataTool()
{}
 
 
/******************************************************************************/
StatusCode
ByteStreamMetadataTool::initialize()
{
  ATH_MSG_INFO("Initializing");
 
  ATH_CHECK(m_metadataStore.retrieve());
  ATH_CHECK(m_inputStore.retrieve());
 
  return StatusCode::SUCCESS;
}
 
 
/******************************************************************************/
StatusCode
ByteStreamMetadataTool::beginInputFile(const SG::SourceID&)
{
  std::set<std::string> keys = keysFromInput();
 
  std::vector<std::unique_ptr<ByteStreamMetadata> > copy;
  std::set<std::string> transGuids;
 
 
  for(const auto& key : keys) {
    ATH_MSG_DEBUG("Processing Input ByteStreamMetadata, key = " << key);
    copy.clear();
 
    if(m_inputStore->contains<ByteStreamMetadata>(key)) {
      const ByteStreamMetadata* obj = nullptr;
      ATH_CHECK(m_inputStore->retrieve(obj, key));
      copy.push_back(std::make_unique<ByteStreamMetadata>(*obj));
    }
 
    if(m_inputStore->contains<ByteStreamMetadataContainer>(key)) {
      const ByteStreamMetadataContainer* obj = nullptr;
      ATH_CHECK(m_inputStore->retrieve(obj, key));
      for(const ByteStreamMetadata* md : *obj)
        copy.push_back(std::make_unique<ByteStreamMetadata>(*md));
    }
 
 
    if(!copy.empty()) {
 
      transGuids.clear();
      // Check for existing container
      ByteStreamMetadataContainer* bsmdc = nullptr;
 
      if (m_metadataStore->contains<ByteStreamMetadataContainer>(key)) {
 
        ATH_MSG_DEBUG("Pre-existing ByteStreamMetadataContainer found");
        ATH_CHECK(m_metadataStore->retrieve(bsmdc, key));
 
        for (const auto bsmd : *bsmdc)
          transGuids.insert(bsmd->getGuid());
 
      } else {
 
        bsmdc = new ByteStreamMetadataContainer;
        ATH_CHECK(m_metadataStore->record(bsmdc, key));
 
      }
 
      for(auto& pBSMD : copy) {
        // Only insert new metadata records (with GUID not yet in container)
        if(transGuids.insert(pBSMD->getGuid()).second)
          bsmdc->push_back(std::move(pBSMD));
      }
    }
  }
 
  return StatusCode::SUCCESS;
}
 
 
 
/******************************************************************************/
inline
std::set<std::string>
ByteStreamMetadataTool::keysFromInput() const
{
  std::vector<std::string> vKeys;
  std::set<std::string> keys;
 
  m_inputStore->keys<ByteStreamMetadata>(vKeys);
  keys.insert(vKeys.begin(), vKeys.end());
 
  m_inputStore->keys<ByteStreamMetadataContainer>(vKeys);
  keys.insert(vKeys.begin(), vKeys.end());
 
  return keys;
}
 
 
/******************************************************************************/
StatusCode
ByteStreamMetadataTool::endInputFile(const SG::SourceID&)
{
  return StatusCode::SUCCESS;
}
 
 
StatusCode
ByteStreamMetadataTool::metaDataStop()
{
  return StatusCode::SUCCESS;
}