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 22 of file MdtCsmIdHash.cxx.

{
  IMessageSvc*  msgSvc;
  ISvcLocator* svcLoc = Gaudi::svcLocator( );
  assert(svcLoc);
  StatusCode sc = svcLoc->service( "MessageSvc", msgSvc );
  if (sc.isFailure()) std::cout << "Fail to locate Message Service" << std::endl;
 
  MsgStream log(msgSvc, "MuonDigitContainer" );
 
  log << MSG::DEBUG << " MdtCsmIdHash Constructor "<<endmsg; 
 
  const MdtIdHelper* mdtHelper=nullptr;
  StoreGateSvc* detStore=nullptr;
  sc = svcLoc->service("DetectorStore", detStore);
 
  if (sc.isSuccess()) {
    sc = detStore->retrieve( mdtHelper, "MDTIDHELPER" );
    if (sc.isFailure())
      log << MSG::ERROR << " Cannot retrieve MdtIdHelper " << endmsg;
  } else 
    log << MSG::ERROR << " MdtIdHelper not found in DetectorStore " << endmsg;
  //too bad, we bail out (PC)
  if (!sc.isSuccess()) 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 log << MSG::ERROR << "MDT hash constructor failed!" << endmsg;
  } 
 
  log << MSG::DEBUG << "Number of valid MDT Element IDs " << used << 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 69 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 93 of file MdtCsmIdHash.cxx.

                            {
 
return m_size; 
 
}

offset()

int MdtCsmIdHash::offset ( )

static

return offset

Definition at line 99 of file MdtCsmIdHash.cxx.

                         {
 
return 0;
 
}

operator()()

int MdtCsmIdHash::operator()

(

const ID &

id

)

const

Convert ID to int.

Definition at line 81 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.

---

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

• MdtCsmIdHash.h
• MdtCsmIdHash.cxx