AFP::SiLocAlignDBTool Class Reference

Tool providing local alignment of silicon detectors from the conditions database. More...

#include <SiLocAlignDBTool.h>

Inheritance diagram for AFP::SiLocAlignDBTool:

Collaboration diagram for AFP::SiLocAlignDBTool:

Public Member Functions
	SiLocAlignDBTool (const std::string &type, const std::string &name, const IInterface *parent)
virtual	~SiLocAlignDBTool () override
	Does nothing.
virtual StatusCode	initialize () override
	Does nothing.
virtual StatusCode	finalize () override
	Does nothing.
nlohmann::json	alignmentData (const EventContext &ctx) const override
	Provide alignment parameters for a given plane. Returns zeros if no data available.
const SiLocAlignData	alignment (const nlohmann::json &jsondata, const int stationID, const int planeID) const override

Private Attributes
SG::ReadCondHandleKey< CondAttrListCollection >	m_rch_loc {this, "loc_align_key", "/FWD/Onl/AFP/Align/Local", "read condition handle for local alignement"}

Detailed Description

Tool providing local alignment of silicon detectors from the conditions database.

Definition at line 33 of file SiLocAlignDBTool.h.

Constructor & Destructor Documentation

SiLocAlignDBTool()

AFP::SiLocAlignDBTool::SiLocAlignDBTool	(	const std::string &	type,
		const std::string &	name,
		const IInterface *	parent )

Definition at line 10 of file SiLocAlignDBTool.cxx.

                                                                                                           :
    base_class(type, name, parent)
  {
  }

~SiLocAlignDBTool()

virtual AFP::SiLocAlignDBTool::~SiLocAlignDBTool ( )

inlineoverridevirtual

Does nothing.

Definition at line 39 of file SiLocAlignDBTool.h.

{}

Member Function Documentation

alignment()

const SiLocAlignData AFP::SiLocAlignDBTool::alignment ( const nlohmann::json & jsondata, const int stationID, const int planeID ) const

override

Definition at line 52 of file SiLocAlignDBTool.cxx.

  {
    ATH_MSG_DEBUG("will get local alignment for station "<<stationID<<", layerID "<<layerID);
    nlohmann::json channeldata=jsondata["data"];
    
    // first, try to guess the channel nr.
    int guess_ch=stationID*4+layerID;
      
    nlohmann::json aligndata=channeldata.at(std::to_string(guess_ch)); // because using int would be too simple
    int st=aligndata["stationID"];
    int la=aligndata["layerID"];
    if(stationID==st && layerID==la)
    {
      ATH_MSG_DEBUG("channel guessed correctly, stationID "<<st<<", layerId "<<la<<", channel guess "<<guess_ch);
      return SiLocAlignData(st, la, aligndata["shiftX"], aligndata["shiftY"], aligndata["shiftZ"], aligndata["alpha"], aligndata["beta"], aligndata["gamma"]);
    }
    else
    {
      ATH_MSG_DEBUG("channel was not guessed correctly, stationID "<<st<<", layerId "<<la<<", channel guess "<<guess_ch);
    }
    
    // if guess is not correct, loop over all channels
    for(auto& chan : channeldata.items())
    {
      // channels are ordered alphabetically: 0,1,10,...,15,2,3,...,9
      nlohmann::json aligndata=chan.value();
        
      int st=aligndata["stationID"];
      int la=aligndata["layerID"];
        
      if(stationID==st && layerID==la)
      {
        ATH_MSG_DEBUG("channel found for stationID "<<st<<", layerId "<<la<<", channel nr. "<<chan.key());
        return SiLocAlignData(st, la, aligndata["shiftX"], aligndata["shiftY"], aligndata["shiftZ"], aligndata["alpha"], aligndata["beta"], aligndata["gamma"]);
      }
    }
 
    ATH_MSG_WARNING("local alignment data stationID "<<stationID<<", layerId "<<layerID<<" not found in any channels, returning zeros");
    return SiLocAlignData(stationID,layerID);
  }

alignmentData()

nlohmann::json AFP::SiLocAlignDBTool::alignmentData ( const EventContext & ctx ) const

override

Provide alignment parameters for a given plane. Returns zeros if no data available.

Definition at line 30 of file SiLocAlignDBTool.cxx.

  { 
    ATH_MSG_DEBUG("will get local alignment for run "<<ctx.eventID().run_number()<<", lb "<<ctx.eventID().lumi_block()<<", event "<<ctx.eventID().event_number());
 
    SG::ReadCondHandle<CondAttrListCollection> ch_loc( m_rch_loc, ctx );
    const CondAttrListCollection* attrLocList { *ch_loc};
    if ( attrLocList == nullptr )
    {
        ATH_MSG_WARNING("local alignment data for key " << m_rch_loc.fullKey() << " not found, returning empty string");
        return nlohmann::json::parse("");
    }
    
    if(attrLocList->size()>1) ATH_MSG_INFO("there should be only one real channel in "<< m_rch_loc.fullKey() <<", there are "<<attrLocList->size()<<" real channels, only the first one will be used ");
    
    CondAttrListCollection::const_iterator itr = attrLocList->begin();
    const coral::AttributeList &atr = itr->second;
    std::string data = *(static_cast<const std::string *>((atr["data"]).addressOfData()));
 
    return nlohmann::json::parse(data);
  }

finalize()

StatusCode AFP::SiLocAlignDBTool::finalize ( )

overridevirtual

Does nothing.

Definition at line 23 of file SiLocAlignDBTool.cxx.

  {
    ATH_MSG_DEBUG("in the finalize of SiLocAlignDBTool, bye bye");
    return StatusCode::SUCCESS;
  }

initialize()

StatusCode AFP::SiLocAlignDBTool::initialize ( )

overridevirtual

Does nothing.

Definition at line 16 of file SiLocAlignDBTool.cxx.

  {
    ATH_CHECK( m_rch_loc.initialize() ); 
    ATH_MSG_DEBUG( "using DB with key " << m_rch_loc.fullKey() );
    return StatusCode::SUCCESS;
  }

Member Data Documentation

m_rch_loc

SG::ReadCondHandleKey<CondAttrListCollection> AFP::SiLocAlignDBTool::m_rch_loc {this, "loc_align_key", "/FWD/Onl/AFP/Align/Local", "read condition handle for local alignement"}

private

Definition at line 52 of file SiLocAlignDBTool.h.

{this, "loc_align_key", "/FWD/Onl/AFP/Align/Local", "read condition handle for local alignement"};

---

The documentation for this class was generated from the following files:

• SiLocAlignDBTool.h
• SiLocAlignDBTool.cxx