HLT::HLTResultByteStreamCnv Class Reference

Gaudi bytestream Converter for the HLTResult class. More...

#include <HLTResultByteStreamCnv.h>

Inheritance diagram for HLT::HLTResultByteStreamCnv:

Collaboration diagram for HLT::HLTResultByteStreamCnv:

Public Member Functions
	HLTResultByteStreamCnv (ISvcLocator *svcloc)
	std Gaudi converter constructor
virtual StatusCode	initialize ()
	Gaudi initialize.
virtual StatusCode	finalize ()
	Gaudi finalize.
virtual StatusCode	createObj (IOpaqueAddress *pAddr, DataObject *&pObj)
	create RDO (HLTResult) from bytestream
virtual StatusCode	createRep (DataObject *pObj, IOpaqueAddress *&pAddr)
	create bytestream from RDOs (HLTResult)
long	repSvcType () const
	return repSvcType

Static Public Member Functions
static long	storageType ()
	storageType
static CLID	classID ()
	CLID.

Private Attributes
MsgStream *	m_log
	std message stream
ToolHandle< HLTResultByteStreamTool >	m_tool
	tool for conversion work
ServiceHandle< IByteStreamEventAccess >	m_ByteStreamEventAccess
	Gaudi helper.
ServiceHandle< IROBDataProviderSvc >	m_robDataProvider
	Gaudi ROB helper.

Detailed Description

Gaudi bytestream Converter for the HLTResult class.

An AlgTool to provide conversion of Run-1&2 HLTResult from/to ByteStream.

This class essentially provides two methods:

1. createObj(IOpaqueAddress*, DataObject*&)
2. createRep(DataObject*, IOpaqueAddress*& )

The first one creates a DataObject from persistent information, captured in IOpaqueAddress, and the second is supposed to write the DataObject to a persistent representation. Here, DataObject will be casted to HLTResult

see here for a general ByteStream converter description: http://atlas-sw.cern.ch/cgi-bin/viewcvs-atlas.cgi/offline/Event/ByteStreamCnvSvc/doc/ByteStream.txt

beginning of this file:
ByteStream conversion Service (ByteStreamCnvSvc) provides a means to convert the raw data in the ByteStream format to and from the transient representation, Raw Data Objects (RDO). In Gaudi's terminology, ByteStream can be considered as a persistency for reading and storing raw data. In practice, the source of the ByteStream can be a file, or the online data source (or its emulation) through network, for example. Together with the IdentifiableContainer, used to contain the Raw Data Objects, ByteStreamCnvSvc provides a mechanism for creating the RDOs on demand.

This tool is used by the Gaudi converter class: HLTResultByteStreamCnv.

Definition at line 69 of file HLTResultByteStreamCnv.h.

Constructor & Destructor Documentation

HLTResultByteStreamCnv()

HLT::HLTResultByteStreamCnv::HLTResultByteStreamCnv

(

ISvcLocator *

svcloc

)

std Gaudi converter constructor

Constructor.

Definition at line 34 of file HLTResultByteStreamCnv.cxx.

                                                                     :
  Converter(storageType(), classID(),svcloc),
  m_log(0),
  m_tool("HLT::HLTResultByteStreamTool"),
  m_ByteStreamEventAccess("ByteStreamCnvSvc", "HLTResultByteStreamCnv"),
  m_robDataProvider("ROBDataProviderSvc", "HLTResultByteStreamCnv")
{ }

Member Function Documentation

classID()

CLID HLT::HLTResultByteStreamCnv::classID ( )

static

CLID.

Definition at line 45 of file HLTResultByteStreamCnv.cxx.

{
  return ClassID_traits<HLT::HLTResult>::ID() ;
}

createObj()

StatusCode HLT::HLTResultByteStreamCnv::createObj ( IOpaqueAddress * pAddr, DataObject *& pObj )

virtual

create RDO (HLTResult) from bytestream

createObj should create the RDO from bytestream.

Definition at line 148 of file HLTResultByteStreamCnv.cxx.

{
  HLTResult* result = new HLTResult();
 
  ByteStreamAddress *pBS_Addr = dynamic_cast<ByteStreamAddress*>(pAddr);
  if(pBS_Addr==nullptr) {
    (*m_log) << MSG::ERROR << " Can not cast to ByteStreamAddress " << endmsg ;
    delete result;
    return StatusCode::FAILURE;
  }
 
  const std::string nm = *(pBS_Addr->par()) ;
  std::vector<ROBData> vRobData;
 
  StatusCode sc = m_tool->convert(*m_robDataProvider, result, nm);
  if (sc != StatusCode::SUCCESS) {
    (*m_log) << MSG::ERROR << "Failed to create object " << nm << endmsg;
    return sc;
  }
 
  pObj = SG::asStorable(result);
  return sc;
}

createRep()

StatusCode HLT::HLTResultByteStreamCnv::createRep ( DataObject * pObj, IOpaqueAddress *& pAddr )

virtual

create bytestream from RDOs (HLTResult)

createRep should create the bytestream from RDOs.

Definition at line 175 of file HLTResultByteStreamCnv.cxx.

{
 
   HLTResult* result = 0;
   SG::fromStorable(pObj, result);
 
   if (!result) {
     (*m_log) << MSG::ERROR << " Cannot cast to HLTResult " << endmsg ;
     return StatusCode::FAILURE;
   }
 
   std::string nm = pObj->registry()->name();
 
   RawEventWrite* re = m_ByteStreamEventAccess->getRawEvent();
  // Convert to ByteStream
   StatusCode sc = m_tool->convert(result, re, nm);
 
   if ( pAddr != nullptr ) pAddr->release();
   ByteStreamAddress* addr = new ByteStreamAddress(classID(), nm, "");
   pAddr = addr;
   pAddr->addRef();
 
   return sc;
 
}

finalize()

StatusCode HLT::HLTResultByteStreamCnv::finalize ( )

virtual

Gaudi finalize.

Definition at line 55 of file HLTResultByteStreamCnv.cxx.

{
  delete m_log;
  return StatusCode::SUCCESS;
}

initialize()

StatusCode HLT::HLTResultByteStreamCnv::initialize ( )

virtual

Gaudi initialize.

Init method gets all necessary services etc.

Definition at line 65 of file HLTResultByteStreamCnv.cxx.

{
   StatusCode sc = Converter::initialize();
   if(StatusCode::SUCCESS!=sc)
   {
    return sc;
   }
 
   m_log = new MsgStream(msgSvc(), "HLTResultByteStreamCnv");
 
   (*m_log) << MSG::DEBUG << "HLTResultByteStreamCnv in initialize() " <<endmsg;
 
   //Get ByteStreamCnvSvc
   if ( m_ByteStreamEventAccess.retrieve().isFailure() ) {
     (*m_log) << MSG::FATAL << "failed to retrieve ByteStreamEventAccess service: "
          << m_ByteStreamEventAccess << endmsg;
     return  StatusCode::FAILURE;
   } else {
     (*m_log) << MSG::DEBUG << "successfully retrieved ByteStreamEventAccess service: "
          << m_ByteStreamEventAccess << endmsg;
   }
//    if(StatusCode::SUCCESS != service("ByteStreamCnvSvc",m_ByteStreamEventAccess)){
//      (*m_log) << MSG::ERROR << " Can't get ByteStreamEventAccess interface " << endmsg;
//      return StatusCode::FAILURE;
//    }
 
 
 
   // Retrieve Tool
   //   IToolSvc* toolSvc;
   //   if(StatusCode::SUCCESS != service("ToolSvc",toolSvc)){
   //     (*m_log) << MSG::ERROR << " Can't get ToolSvc " << endmsg;
   //     return StatusCode::FAILURE;
   //   }
 
//    std::string toolType = "HLT::HLTResultByteStreamTool" ;
//    if(StatusCode::SUCCESS !=toolSvc->retrieveTool(toolType,m_tool))
//    {
//      (*m_log) << MSG::ERROR << " Can't get ByteStreamTool " << endmsg;
//      return StatusCode::FAILURE;
//    }
   // get the converter tool:
   if ( m_tool.retrieve().isFailure() ) {
     (*m_log) << MSG::FATAL << "failed to retrieve converter tool : "
          << m_tool << endmsg;
     return  StatusCode::FAILURE;
   } else {
     (*m_log) << MSG::DEBUG << "successfully retrieved converter tool: "
          << m_tool << endmsg;
   }
 
 
   // Get ROBDataProvider
   if (m_robDataProvider.retrieve().isFailure()) {
    (*m_log) << MSG::FATAL << "failed to retrieve ROBDataProviderSvc service: "
         << m_robDataProvider << endmsg;
    return StatusCode::FAILURE;
   }
   (*m_log) << MSG::DEBUG << "successfully retrieved ROBDataProviderSvc service: "
        << m_robDataProvider << endmsg;
 
//    IService* robSvc ;
//    sc = serviceLocator()->getService("ROBDataProviderSvc", robSvc);
//    if(sc != StatusCode::SUCCESS ) {
//      (*m_log)<<MSG::ERROR << " Cant get ROBDataProviderSvc " <<endmsg;
 
//      //DBG:
//      //     return sc ;
//      return StatusCode::SUCCESS;
//    }
 
//    m_robDataProvider = dynamic_cast<IROBDataProviderSvc*> (robSvc);
//    if(m_robDataProvider == 0 ) {
//      (*m_log)<<MSG::ERROR<< " Cant cast to ROBDataProviderSvc " <<endmsg;
//      // return StatusCode::FAILURE ;
//    }
 
   return StatusCode::SUCCESS;
}

repSvcType()

long HLT::HLTResultByteStreamCnv::repSvcType ( ) const

inline

return repSvcType

Definition at line 85 of file HLTResultByteStreamCnv.h.

storageType()

long HLT::HLTResultByteStreamCnv::storageType ( )

static

storageType

Definition at line 50 of file HLTResultByteStreamCnv.cxx.

{
  return ByteStreamAddress::storageType();
}

Member Data Documentation

m_ByteStreamEventAccess

ServiceHandle< IByteStreamEventAccess > HLT::HLTResultByteStreamCnv::m_ByteStreamEventAccess

private

Gaudi helper.

Definition at line 93 of file HLTResultByteStreamCnv.h.

m_log

MsgStream* HLT::HLTResultByteStreamCnv::m_log

private

std message stream

Definition at line 89 of file HLTResultByteStreamCnv.h.

m_robDataProvider

ServiceHandle< IROBDataProviderSvc > HLT::HLTResultByteStreamCnv::m_robDataProvider

private

Gaudi ROB helper.

Definition at line 95 of file HLTResultByteStreamCnv.h.

m_tool

ToolHandle< HLTResultByteStreamTool > HLT::HLTResultByteStreamCnv::m_tool

private

tool for conversion work

Definition at line 91 of file HLTResultByteStreamCnv.h.

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

• HLTResultByteStreamCnv.h
• HLTResultByteStreamCnv.cxx