SysReadDecorHandle.icc

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/*
  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
*/
 
/// @author Nils Krumnack
 
 
//
// includes
//
 
#include <AsgMessaging/MessageCheck.h>
#include <AsgMessaging/StatusCode.h>
 
#include <regex>
 
//
// method implementations
//
 
namespace CP
{
  template<typename T> template<typename T2> SysReadDecorHandle<T> ::
  SysReadDecorHandle (T2 *owner, const std::string& propertyName,
                 const std::string& propertyValue,
                 const std::string& propertyDescription)
    : AsgMessagingForward (owner), m_decorName (propertyValue)
  {
    owner->declareProperty (propertyName, m_decorName, propertyDescription);
  }
 
 
  template<typename T> template<typename T2> SysReadDecorHandle<T> ::
  SysReadDecorHandle (const std::string& decorName, T2 *owner)
    : AsgMessagingForward (owner), m_decorName(decorName)
  {}
 
 
 
  template<typename T> bool SysReadDecorHandle<T> ::
  empty () const noexcept
  {
    return m_decorName.empty();
  }
 
 
 
  template<typename T> SysReadDecorHandle<T> ::
  operator bool () const noexcept
  {
    return !m_decorName.empty();
  }
 
 
 
  template<typename T> std::string SysReadDecorHandle<T> ::
  getNamePattern () const
  {
    // So far it is undefined what to return here, it could either be
    // "decorName" or "objectName.decorName".  I'll fill this in once
    // there is a reason for it to be one or the other.
    return "";
  }
 
 
 
  template<typename T> StatusCode SysReadDecorHandle<T> ::
  initialize (SysListHandle& sysListHandle, const ISysHandleBase& objectHandle)
  {
    if (m_objectHandle != nullptr)
    {
      ANA_MSG_ERROR ("trying to initialize handle twice");
      return StatusCode::FAILURE;
    }
    m_objectHandle = &objectHandle;
    return sysListHandle.addHandle (*this);
  }
 
 
 
  template<typename T> StatusCode SysReadDecorHandle<T> ::
  initialize (SysListHandle& sysListHandle, const ISysHandleBase& objectHandle, SG::AllowEmptyEnum)
  {
    if (!empty())
      return initialize (sysListHandle, objectHandle);
    else
      return StatusCode::SUCCESS;
  }
 
 
 
  template<typename T> const std::string& SysReadDecorHandle<T> ::
  getName (const CP::SystematicSet& sys) const
  {
    const auto& data = getData (sys);
    return std::get<0> (data);
  }
 
 
 
  template<typename T> const T& SysReadDecorHandle<T> ::
  get (const SG::AuxElement& object,
       const CP::SystematicSet& sys) const
  {
    const auto& data = getData (sys);
    return std::get<1> (data) (object);
  }
 
 
 
  template<typename T> CP::SystematicSet SysReadDecorHandle<T> ::
  getInputAffecting (const ISystematicsSvc& svc) const
  {
    return svc.getDecorSystematics (m_objectHandle->getNamePattern(), m_decorName);
  }
 
 
 
  template<typename T> StatusCode SysReadDecorHandle<T> ::
  fillSystematics (const ISystematicsSvc& svc,
                   const CP::SystematicSet& /*fullAffecting*/,
                   const std::vector<CP::SystematicSet>& sysList)
  {
    const CP::SystematicSet affecting
      = svc.getDecorSystematics (m_objectHandle->getNamePattern(), m_decorName);
    for (auto& sys : sysList)
    {
      CP::SystematicSet inputSys;
      ANA_CHECK (SystematicSet::filterForAffectingSystematics (sys, affecting, inputSys));
      std::string decorName;
      ANA_CHECK (svc.makeSystematicsName (decorName, m_decorName, inputSys));
      ANA_MSG_DEBUG ("SysReadDecorHandle: " << decorName << " (" << sys.name() << ")");
      m_dataCache.emplace (sys, std::make_tuple (decorName, decorName));
    }
    return StatusCode::SUCCESS;
  }
 
 
 
  template<typename T> const auto&
  SysReadDecorHandle<T> ::
  getData (const CP::SystematicSet& sys) const
  {
    auto cache = m_dataCache.find (sys);
    if (cache == m_dataCache.end())
    {
      if (m_dataCache.empty())
        throw std::logic_error ("uninitialized SysReadDecorHandle (" + m_decorName + ")");
      else
        throw std::logic_error ("unsupported systematic in SysReadDecorHandle (" + m_decorName + "): (" + sys.name() + ")");
    }
    return cache->second;
  }
}