MdtCsmIdHash Class Reference

Hash function for Mdt module Identifier to be used in MdtDigitContainer (IdentifiableContainer) More...

#include <MdtCsmIdHash.h>

Collaboration diagram for MdtCsmIdHash:

Public Types
typedef Identifier	ID

Public Member Functions
	MdtCsmIdHash ()
virtual	~MdtCsmIdHash ()
int	operator() (const ID &id) const
	Convert ID to int. More...
int	max () const
	return maximum number of IDs More...
ID	identifier (int i) const
	reverse conversion More...

Static Public Member Functions
static int	offset ()
	return offset More...

Private Attributes
int	m_size
	total number of IDs More...
std::map< Identifier, int >	m_lookup
	lookup table More...
std::vector< ID >	m_int2id
	reverse lookup More...

Detailed Description

Hash function for Mdt module Identifier to be used in MdtDigitContainer (IdentifiableContainer)

Author

Hong Ma

Version

00-00-01 , Aug 28, 2002

Definition at line 17 of file MdtCsmIdHash.h.

Member Typedef Documentation

ID

typedef Identifier MdtCsmIdHash::ID

Definition at line 21 of file MdtCsmIdHash.h.

Constructor & Destructor Documentation

MdtCsmIdHash()

MdtCsmIdHash::MdtCsmIdHash

(

)

Definition at line 21 of file MdtCsmIdHash.cxx.

{
  const MdtIdHelper* mdtHelper=nullptr;
  SmartIF<StoreGateSvc> detStore{Gaudi::svcLocator()->service("DetectorStore")};
 
  StatusCode sc = detStore->retrieve( mdtHelper, "MDTIDHELPER" );
  if (sc.isFailure()) {
    throw GaudiException("can not get MdtIdHelper",
                         "MdtCsmIdHash::MdtCsmIdHash()", sc);
  }
 
  unsigned int used = mdtHelper->module_hash_max();
  IdContext context = mdtHelper->module_context();
 
  if( mdtHelper->stationNameIndex("BME") != -1 ) {
    used = mdtHelper->detectorElement_hash_max();
    context = mdtHelper->detectorElement_context();
  }
 
  for(unsigned int hash=0; hash < used; ++hash){
    Identifier id;
    if (!mdtHelper->get_id(hash,id,&context)) {
      m_lookup[id]=(int) hash;
      m_int2id.push_back(id); 
    } else {
      REPORT_MESSAGE_WITH_CONTEXT(MSG::ERROR, "MdtCscIdHash") <<
        "MDT hash constructor failed!" << endmsg;
    }
  } 
 
  m_size = (int) used;
}

~MdtCsmIdHash()

virtual MdtCsmIdHash::~MdtCsmIdHash ( )

inlinevirtual

Definition at line 24 of file MdtCsmIdHash.h.

{ };

Member Function Documentation

identifier()

MdtCsmIdHash::ID MdtCsmIdHash::identifier

(

int

i

)

const

reverse conversion

Definition at line 54 of file MdtCsmIdHash.cxx.

                                                       {
 
  if(index>=0 && index < m_size) { 
   return m_int2id[index] ; 
  }
  // return blank id for invalid index 
  std::cout <<" MdtCsmIdHash::ERROR : identifier invalid ID "<<std::endl; 
  Identifier id;
  return id; 
 
}

max()

int MdtCsmIdHash::max

(

)

const

return maximum number of IDs

Definition at line 78 of file MdtCsmIdHash.cxx.

                            {
 
return m_size; 
 
}

offset()

int MdtCsmIdHash::offset ( )

static

return offset

Definition at line 84 of file MdtCsmIdHash.cxx.

                         {
 
return 0;
 
}

operator()()

int MdtCsmIdHash::operator()

(

const ID &

id

)

const

Convert ID to int.

Definition at line 66 of file MdtCsmIdHash.cxx.

                                                {
 
 std::map<ID,int>::const_iterator it = m_lookup.find(id); 
 if(it!=m_lookup.end()){
    return (*it).second; 
 }
 
 // FIXME  -1 for invalid ID?
 return -1; 
 
}

Member Data Documentation

m_int2id

std::vector<ID> MdtCsmIdHash::m_int2id

private

reverse lookup

Definition at line 49 of file MdtCsmIdHash.h.

m_lookup

std::map<Identifier,int> MdtCsmIdHash::m_lookup

private

lookup table

Definition at line 45 of file MdtCsmIdHash.h.

m_size

int MdtCsmIdHash::m_size

private

total number of IDs

Definition at line 41 of file MdtCsmIdHash.h.

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

• MdtCsmIdHash.h
• MdtCsmIdHash.cxx