AFP::ToFVtxParamDBTool Class Reference

Tool providing vertex parameters of ToF detectors from the conditions database. More...

#include <ToFVtxParamDBTool.h>

Inheritance diagram for AFP::ToFVtxParamDBTool:

Collaboration diagram for AFP::ToFVtxParamDBTool:

Public Member Functions
	ToFVtxParamDBTool (const std::string &type, const std::string &name, const IInterface *parent)
virtual	~ToFVtxParamDBTool () override
	Does nothing.
virtual StatusCode	initialize () override
	Does nothing.
virtual StatusCode	finalize () override
	Does nothing.
nlohmann::json	parametersData (const EventContext &ctx) const override
	Provide ToF parameters for a given station. Returns zeros if no data available.
const ToFVtxParamData	parameters (const nlohmann::json &jsondata, const int stationID) const override

Private Attributes
SG::ReadCondHandleKey< CondAttrListCollection >	m_rch_vtx {this, "vtx_param_key", "/FWD/Onl/AFP/ToFParameters/Vertex", "read condition handle for vertex ToF parameters"}

Detailed Description

Tool providing vertex parameters of ToF detectors from the conditions database.

Definition at line 33 of file ToFVtxParamDBTool.h.

Constructor & Destructor Documentation

ToFVtxParamDBTool()

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

Definition at line 10 of file ToFVtxParamDBTool.cxx.

                                                                                                             :
    base_class(type, name, parent)
  {
  }

~ToFVtxParamDBTool()

virtual AFP::ToFVtxParamDBTool::~ToFVtxParamDBTool ( )

inlineoverridevirtual

Does nothing.

Definition at line 39 of file ToFVtxParamDBTool.h.

{}

Member Function Documentation

finalize()

StatusCode AFP::ToFVtxParamDBTool::finalize ( )

overridevirtual

Does nothing.

Definition at line 23 of file ToFVtxParamDBTool.cxx.

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

initialize()

StatusCode AFP::ToFVtxParamDBTool::initialize ( )

overridevirtual

Does nothing.

Definition at line 16 of file ToFVtxParamDBTool.cxx.

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

parameters()

const ToFVtxParamData AFP::ToFVtxParamDBTool::parameters ( const nlohmann::json & jsondata, const int stationID ) const

override

Definition at line 52 of file ToFVtxParamDBTool.cxx.

  {
    ATH_MSG_DEBUG("will get vertex ToF parameters for station "<<stationID);
    nlohmann::json channeldata=jsondata["data"];
    
    // first, try to guess the channel nr.
    int guess_ch=(stationID/3);
      
    nlohmann::json paramdata=channeldata.at(std::to_string(guess_ch)); // because using int would be too simple
    int st=paramdata["stationID"];
    if(stationID==st)
    {
      ATH_MSG_DEBUG("channel guessed correctly, stationID "<<st<<", channel guess "<<guess_ch);
      return ToFVtxParamData(st, paramdata["timeGlobalOffset"], paramdata["timeOffset"], paramdata["timeSlope"], paramdata["trainEdge"]);
    }
    else
    {
      ATH_MSG_DEBUG("channel was not guessed correctly, stationID "<<st<<", channel guess "<<guess_ch);
    }
    
    // if guess is not correct, loop over all channels
    for(auto& chan : channeldata.items())
    {
      // channels are ordered alphabetically: 0,1
      nlohmann::json paramdata=chan.value();
        
      int st=paramdata["stationID"];
      if(stationID==st)
      {
        ATH_MSG_DEBUG("channel found for stationID "<<st<<", channel nr. "<<chan.key());
        return ToFVtxParamData(st, paramdata["timeGlobalOffset"], paramdata["timeOffset"], paramdata["timeSlope"], paramdata["trainEdge"]);
      }
    }
 
    ATH_MSG_WARNING("vertex ToF parameters data stationID "<<stationID<<" not found in any channels, returning zeros");
    return ToFVtxParamData(stationID);
  }

parametersData()

nlohmann::json AFP::ToFVtxParamDBTool::parametersData ( const EventContext & ctx ) const

override

Provide ToF parameters for a given station. Returns zeros if no data available.

Definition at line 30 of file ToFVtxParamDBTool.cxx.

  { 
    ATH_MSG_DEBUG("will get vertex ToF parameters for run "<<ctx.eventID().run_number()<<", lb "<<ctx.eventID().lumi_block()<<", event "<<ctx.eventID().event_number());
 
    SG::ReadCondHandle<CondAttrListCollection> ch_loc( m_rch_vtx, ctx );
    const CondAttrListCollection* attrLocList { *ch_loc};
    if ( attrLocList == nullptr )
    {
        ATH_MSG_WARNING("vertex ToF parameters data for key " << m_rch_vtx.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_vtx.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);
  }

Member Data Documentation

m_rch_vtx

SG::ReadCondHandleKey<CondAttrListCollection> AFP::ToFVtxParamDBTool::m_rch_vtx {this, "vtx_param_key", "/FWD/Onl/AFP/ToFParameters/Vertex", "read condition handle for vertex ToF parameters"}

private

Definition at line 52 of file ToFVtxParamDBTool.h.

{this, "vtx_param_key", "/FWD/Onl/AFP/ToFParameters/Vertex", "read condition handle for vertex ToF parameters"};

---

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

• ToFVtxParamDBTool.h
• ToFVtxParamDBTool.cxx