AlgContextSvc Class Reference

#include <AlgContextSvc.h>

Inheritance diagram for AlgContextSvc:

Collaboration diagram for AlgContextSvc:

List of all members.

Public Member Functions
virtual StatusCode	setCurrentAlg (IAlgorithm *a)
	set the currently executing algorithm ("push_back")
virtual StatusCode	unSetCurrentAlg (IAlgorithm *a)
	remove the algorithm ("pop_back")
virtual IAlgorithm *	currentAlg () const
	accessor to current algorithm:
virtual const IAlgContextSvc::Algorithms &	algorithms () const
	get the stack of executed algorithms
virtual void	handle (const Incident &)
	handle incident
virtual StatusCode	initialize ()
	standard initialization of the service
virtual StatusCode	finalize ()
	standard finalization of the service
	AlgContextSvc (const std::string &name, ISvcLocator *svc)
	Standard Constructor.
virtual	~AlgContextSvc ()
	Standard Destructor.
Private Member Functions
	AlgContextSvc ()
	no default constructor
	AlgContextSvc (const AlgContextSvc &)
	no copy constructor
AlgContextSvc &	operator= (const AlgContextSvc &)
	no assignment
Private Attributes
IAlgContextSvc::Algorithms	m_algorithms
	the stack of current algorithms
IIncidentSvc *	m_inc
	pointer to Incident Service
bool	m_check
Friends
class	SvcFactory< AlgContextSvc >
	friend factory for instantiations

---

Detailed Description

Definition at line 28 of file AlgContextSvc.h.

---

Constructor & Destructor Documentation

AlgContextSvc::AlgContextSvc	(	const std::string &	name,
		ISvcLocator *	svc
	)

Standard Constructor.

Instantiation of a static factory class used by clients to create instances of this service.

See also:

Service

Definition at line 31 of file AlgContextSvc.cpp.

  : base_class ( name , svc  )
  , m_algorithms (  0   )
  , m_inc        (  0   )
  , m_check      ( true )
{
  declareProperty ( "Check" , m_check , "Flag to perform more checks" );
}

AlgContextSvc::~AlgContextSvc

(

)

[virtual]

Standard Destructor.

Definition at line 43 of file AlgContextSvc.cpp.

{}

AlgContextSvc::AlgContextSvc

(

)

[private]

no default constructor

AlgContextSvc::AlgContextSvc

(

const AlgContextSvc &

)

[private]

no copy constructor

---

Member Function Documentation

virtual const IAlgContextSvc::Algorithms& AlgContextSvc::algorithms

(

)

const [inline, virtual]

get the stack of executed algorithms

See also:

IAlgContextSvc

Definition at line 41 of file AlgContextSvc.h.

  { return m_algorithms ; }

IAlgorithm * AlgContextSvc::currentAlg

(

)

const [virtual]

accessor to current algorithm:

See also:

IAlgContextSvc

Definition at line 152 of file AlgContextSvc.cpp.

{ return m_algorithms.empty() ? 0 : m_algorithms.back() ; }

StatusCode AlgContextSvc::finalize

(

void

)

[virtual]

standard finalization of the service

See also:

IService

Reimplemented from Service.

Definition at line 90 of file AlgContextSvc.cpp.

{
  if ( !m_algorithms.empty() )
  {
    MsgStream log ( msgSvc() , name() ) ;
    log << MSG::WARNING
        << "Non-empty stack of algorithms #"
        << m_algorithms.size() << endmsg ;
  }
  // Incident Service
  if ( 0 != m_inc     )
  {
    m_inc -> removeListener ( this ) ;
    m_inc -> release() ;
    m_inc = 0 ;
  }
  // finalize the base class
  return Service::finalize () ;
}

void AlgContextSvc::handle

(

const Incident &

)

[virtual]

handle incident

See also:

IIncidentListener

Definition at line 157 of file AlgContextSvc.cpp.

{
  if ( !m_algorithms.empty() )
  {
    MsgStream log ( msgSvc() , name() ) ;
    log << MSG::ERROR
        << "Non-empty stack of algorithms #"
        << m_algorithms.size() << endmsg ;
  }
}

StatusCode AlgContextSvc::initialize

(

)

[virtual]

standard initialization of the service

See also:

IService

Reimplemented from Service.

Definition at line 47 of file AlgContextSvc.cpp.

{
  // Initialize the base class
  StatusCode sc = Service::initialize () ;
  if ( sc.isFailure () ) { return sc ; }
  // Incident Service
  if ( 0 != m_inc     )
  {
    m_inc -> removeListener ( this ) ;
    m_inc -> release() ;
    m_inc = 0 ;
  }
  // perform more checks?
  if ( m_check )
  {
    sc = Service::service ( "IncidentSvc" , m_inc , true ) ;
    if ( sc.isFailure() )
    {
      MsgStream log ( msgSvc() , name() )  ;
      log << MSG::ERROR << "Could not locate 'IncidentSvc'" << sc << endmsg ;
      return sc ;                                               // RETURN
    }
    if ( 0 == m_inc )
    {
      MsgStream log ( msgSvc() , name() ) ;
      log << MSG::ERROR << "Invalid pointer to IIncindentSvc" << endmsg ;
      return StatusCode::FAILURE ;                               // RETURN
    }
    m_inc -> addListener ( this , IncidentType::BeginEvent ) ;
    m_inc -> addListener ( this , IncidentType::EndEvent   ) ;
  }
  if ( !m_algorithms.empty() )
  {
    MsgStream log ( msgSvc() , name() ) ;
    log << MSG::WARNING
        << "Non-empty stack of algorithms #"
        << m_algorithms.size() << endmsg ;
  }
  return StatusCode::SUCCESS ;
}

AlgContextSvc& AlgContextSvc::operator=

(

const AlgContextSvc &

)

[private]

no assignment

StatusCode AlgContextSvc::setCurrentAlg

(

IAlgorithm *

a )

[virtual]

set the currently executing algorithm ("push_back")

See also:

IAlgContextSvc

Definition at line 112 of file AlgContextSvc.cpp.

{
  if ( 0 == a )
  {
    MsgStream log ( msgSvc() , name() ) ;
    log << MSG::WARNING << "IAlgorithm* points to NULL" << endmsg ;
    //
    return StatusCode::RECOVERABLE ;                              // RETURN
  }
  m_algorithms.push_back ( a ) ;
  //
  return StatusCode::SUCCESS ;                                    // RETURN
}

StatusCode AlgContextSvc::unSetCurrentAlg

(

IAlgorithm *

a )

[virtual]

remove the algorithm ("pop_back")

See also:

IAlgContextSvc

Definition at line 128 of file AlgContextSvc.cpp.

{
  if ( 0 == a )
  {
    MsgStream log ( msgSvc() , name() ) ;
    log << MSG::WARNING << "IAlgorithm* points to NULL" << endmsg ;
    //
    return StatusCode::RECOVERABLE ;                              // RETURN
  }
  if ( m_algorithms.empty() || m_algorithms.back() != a )
  {
    MsgStream log ( msgSvc() , name() ) ;
    log << MSG::ERROR << "Algorithm stack is invalid" << endmsg ;
    //
    return StatusCode::FAILURE ;
  }
  //
  m_algorithms.pop_back() ;                                      // POP_BACK
  //
  return StatusCode::SUCCESS ;
}

---

Friends And Related Function Documentation

friend class SvcFactory< AlgContextSvc > [friend]

friend factory for instantiations

Definition at line 32 of file AlgContextSvc.h.

---

Member Data Documentation

IAlgContextSvc::Algorithms AlgContextSvc::m_algorithms [private]

the stack of current algorithms

Definition at line 67 of file AlgContextSvc.h.

bool AlgContextSvc::m_check [private]

Definition at line 71 of file AlgContextSvc.h.

IIncidentSvc* AlgContextSvc::m_inc [private]

pointer to Incident Service

Definition at line 69 of file AlgContextSvc.h.

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

• /afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/GaudiSvc/src/AlgContextSvc/AlgContextSvc.h
• /afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/GaudiSvc/src/AlgContextSvc/AlgContextSvc.cpp