DataStreamTool Class Reference

#include <GaudiKernel/DataStreamTool.h>

Inheritance diagram for DataStreamTool:

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Collaboration diagram for DataStreamTool:

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List of all members.

Detailed Description

Author:: Andres Felipe Osorio Oliveros
Marco Clemencic

Date:: 2006-09-21

Definition at line 29 of file DataStreamTool.h.


Public Types
typedef std::vector < EventSelectorDataStream * >	Streams
typedef std::vector < StringProperty >	Properties
Public Member Functions
	DataStreamTool (const std::string &type, const std::string &name, const IInterface *parent)
	Standard constructor.
virtual	~DataStreamTool ()
	Destructor.
virtual StatusCode	initialize ()
	Initialization (from CONFIGURED to INITIALIZED).
virtual StatusCode	addStream (const std::string &)
virtual StatusCode	addStreams (const StreamSpecs &)
virtual StatusCode	eraseStream (const std::string &)
virtual StatusCode	finalize ()
	Finalize (from INITIALIZED to CONFIGURED).
virtual StatusCode	initializeStream (EventSelectorDataStream *)
	Initialize newly opened stream.
virtual StatusCode	finalizeStream (EventSelectorDataStream *)
	Finalize no longer needed stream.
virtual StatusCode	getNextStream (const EventSelectorDataStream *&, size_type &)
virtual StatusCode	getPreviousStream (const EventSelectorDataStream *&, size_type &)
virtual Streams &	getStreams ()
virtual EventSelectorDataStream *	lastStream ()
virtual Streams::iterator	beginOfStreams ()
virtual Streams::iterator	endOfStreams ()
virtual EventSelectorDataStream *	getStream (const std::string &)
	Retrieve stream by name.
virtual EventSelectorDataStream *	getStream (size_type)
virtual size_type	size ()
virtual StatusCode	clear ()
Protected Member Functions
virtual StatusCode	createSelector (const std::string &, const std::string &, IEvtSelector *&)
virtual StatusCode	createStream (const std::string &, const std::string &, EventSelectorDataStream *&)
StatusCode	connectStream (EventSelectorDataStream *)
	Connect single stream by reference.
StatusCode	connectStream (const std::string &)
	Connect single stream by name.
Streams::iterator	getStreamIterator (const std::string &)
Protected Attributes
size_type	m_streamID
size_type	m_streamCount
Streams	m_streams
StreamSpecs	m_streamSpecs
IIncidentSvc *	m_incidentSvc
	Reference to the indicent service.
bool	m_reconfigure

Member Typedef Documentation

typedef std::vector<EventSelectorDataStream*> DataStreamTool::Streams

Definition at line 32 of file DataStreamTool.h.

typedef std::vector<StringProperty> DataStreamTool::Properties

Definition at line 33 of file DataStreamTool.h.

Constructor & Destructor Documentation

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

Standard constructor.

Definition at line 34 of file DataStreamTool.cpp.

00037   : AlgTool ( type, name , parent )
00038 {
00039   declareInterface<IDataStreamTool>(this);
00040   
00041   m_incidentSvc       = 0;
00042   m_streamCount       = 0;
00043   m_streamID          = 0;
00044 
00045 }

DataStreamTool::~DataStreamTool ( ) [virtual]

Destructor.

Definition at line 49 of file DataStreamTool.cpp.

00049                                 {
00050 }

Member Function Documentation

StatusCode DataStreamTool::initialize ( ) [virtual]

Initialization (from CONFIGURED to INITIALIZED).

Reimplemented from AlgTool.

Reimplemented in GFALDataStreamTool.

Definition at line 53 of file DataStreamTool.cpp.

00053                                       {
00054   
00055   MsgStream logger(msgSvc(), name());
00056   
00057   StatusCode status = AlgTool::initialize();
00058   if( !status.isSuccess() )  {
00059     logger << MSG::FATAL << "Error. Cannot initialize base class." << endreq;
00060     return status;
00061   }
00062   
00063   // Get the references to the services that are needed by the ApplicationMgr itself
00064   status = serviceLocator()->service("IncidentSvc", m_incidentSvc, true);
00065   if( !status.isSuccess() )  {
00066     logger << MSG::FATAL << "Error retrieving IncidentSvc." << endreq;
00067     return status;
00068   }
00069   
00070   return StatusCode::SUCCESS;
00071   
00072 }

StatusCode DataStreamTool::addStream ( const std::string & input ) [virtual]

Implements IDataStreamTool.

Definition at line 74 of file DataStreamTool.cpp.

00074                                                             {
00075 
00076   if ( NULL != getStream(input) )   {
00077     MsgStream log(msgSvc(), name());
00078     log << MSG::WARNING << "Input stream " << input << "already in use" << endmsg;
00079   }
00080 
00081   m_streamSpecs.push_back(input);
00082 
00083   char txt[32];
00084   
00085   std::string strname = name() + "_" + ::_itoa(++m_streamCount, txt, 10);
00086     
00087   EventSelectorDataStream* s = 0;
00088   
00089   StatusCode status = createStream(strname, input , s );
00090   
00091   if( status.isSuccess() && 0 != s ) {
00092     s->addRef();
00093     m_streams.push_back(s);
00094     status = StatusCode::SUCCESS;
00095   }
00096   else {
00097     MsgStream log(msgSvc(), name());
00098     if (s) {
00099       s->release();
00100       log << MSG::ERROR << "Error connecting/creating Stream: " << s << endreq;
00101     }
00102     log << MSG::ERROR << "Error connecting/creating Stream: " << input << endreq;
00103     status = StatusCode::FAILURE;
00104   }
00105 
00106   return status;
00107   
00108 }

StatusCode DataStreamTool::addStreams ( const StreamSpecs & inputs ) [virtual]

Implements IDataStreamTool.

Reimplemented in GFALDataStreamTool.

Definition at line 110 of file DataStreamTool.cpp.

00110                                                                 {
00111   
00112   StatusCode status = StatusCode::SUCCESS;
00113 
00114   for ( StreamSpecs::const_iterator itr = inputs.begin(); itr != inputs.end() && status.isSuccess(); ++itr )    {
00115     
00116     status = addStream(*itr);
00117 
00118   }
00119   
00120   return status;
00121   
00122 }

StatusCode DataStreamTool::eraseStream ( const std::string & info ) [virtual]

Implements IDataStreamTool.

Definition at line 204 of file DataStreamTool.cpp.

00204                                                                  {
00205   
00206   Streams::iterator i = getStreamIterator(info);
00207   
00208   if ( m_streams.end() != i )   {
00209     (*i)->release();
00210     m_streams.erase(i);
00211     return StatusCode::SUCCESS;
00212   }
00213 
00214   return StatusCode::FAILURE;
00215 }

StatusCode DataStreamTool::finalize ( ) [virtual]

Finalize (from INITIALIZED to CONFIGURED).

Reimplemented from AlgTool.

Reimplemented in GFALDataStreamTool.

Definition at line 124 of file DataStreamTool.cpp.

00124                                     {
00125   
00126   StatusCode status = StatusCode::SUCCESS;
00127   
00128   clear().ignore();
00129   
00130   if( m_incidentSvc ) {
00131     m_incidentSvc->release();
00132     m_incidentSvc = 0 ;
00133   }
00134   
00135   status = AlgTool::finalize();
00136   
00137   return status;
00138   
00139 }

StatusCode DataStreamTool::initializeStream ( EventSelectorDataStream * s ) [virtual]

Initialize newly opened stream.

Implements IDataStreamTool.

Definition at line 141 of file DataStreamTool.cpp.

00141                                                                         {
00142   IEvtSelector* sel = 0;
00143   StatusCode status = s->initialize();
00144   if ( status.isSuccess() )   {
00145     status = createSelector(s->name(), s->selectorType(), sel);
00146     if ( status.isSuccess() )   {
00147       SmartIF<IProperty> prop(IID_IProperty, sel); //Att:IID_IProperty, IID_IService used to point to EventSelector
00148       SmartIF<IService>  isvc(IID_IService, sel);
00149       s->setSelector(sel);
00150       sel->release();  // No need of this interface anymore, it is passed to the stream
00151       if ( prop.isValid( ) && isvc.isValid( ) )   {
00152         const Properties& p = s->properties();
00153         for(Properties::const_iterator i=p.begin(); i!=p.end(); i++)   {
00154           prop->setProperty((*i)).ignore();
00155         }
00156         int output_level = this->outputLevel();
00157         prop->setProperty(IntegerProperty("OutputLevel",output_level)).ignore();
00158         // FIXME: (MCl) Why do we have to initialize the selector here?
00159         return isvc->sysInitialize();
00160       }
00161     }
00162   }
00163   return StatusCode::FAILURE;
00164 }

StatusCode DataStreamTool::finalizeStream ( EventSelectorDataStream * s ) [virtual]

Finalize no longer needed stream.

Implements IDataStreamTool.

Definition at line 182 of file DataStreamTool.cpp.

00182                                                                       {
00183   if ( s )    {
00184     IEvtSelector* sel = const_cast<IEvtSelector*>(s->selector());
00185     if ( sel )    {
00186       SmartIF<IService>  isvc(IID_IService, sel);
00187       if ( isvc.isValid() )   {
00188         isvc->finalize().ignore();
00189         s->finalize().ignore();
00190         // Fire EndStream "Incident"
00191         m_incidentSvc->fireIncident(Incident(name(),IncidentType::EndStream));
00192         return StatusCode::SUCCESS;
00193       }
00194       // Failed to get service interface of sub-event selector
00195       return StatusCode::FAILURE;
00196     }
00197     // No selector (yet) attached - no need to finalize it!
00198     return StatusCode::SUCCESS;
00199   }
00200   return StatusCode::FAILURE;
00201 }

StatusCode DataStreamTool::getNextStream	(	const EventSelectorDataStream *&	esds,
		size_type &	dsid
	)			`[virtual]`

Reimplemented in GFALDataStreamTool.

Definition at line 330 of file DataStreamTool.cpp.

00331 {
00332 
00333   EventSelectorDataStream * nextStream = getStream(dsid);
00334   if ( NULL == nextStream ) return StatusCode::FAILURE; //<-end of streams reached
00335 
00336   esds = nextStream;
00337   ++m_streamID;
00338   
00339   return StatusCode::SUCCESS;
00340   
00341 }

StatusCode DataStreamTool::getPreviousStream	(	const EventSelectorDataStream *&	esds,
		size_type &	dsid
	)			`[virtual]`

Definition at line 343 of file DataStreamTool.cpp.

00344 {
00345 
00346   EventSelectorDataStream * previousStream = getStream(dsid);
00347   if (  NULL == previousStream ) return StatusCode::FAILURE; //<-begin of streams reached
00348 
00349   esds = previousStream;
00350   --m_streamID;
00351   
00352   return StatusCode::SUCCESS;
00353   
00354 }

virtual Streams& DataStreamTool::getStreams ( ) [inline, virtual]

Definition at line 62 of file DataStreamTool.h.

00062 { return m_streams; };

EventSelectorDataStream * DataStreamTool::lastStream ( ) [virtual]

Implements IDataStreamTool.

Definition at line 247 of file DataStreamTool.cpp.

00248 {
00249   if (m_streams.size() > 1 ) 
00250     return *(--m_streams.end());
00251   else return *m_streams.begin();
00252   
00253 }

virtual Streams::iterator DataStreamTool::beginOfStreams ( ) [inline, virtual]

Definition at line 66 of file DataStreamTool.h.

00066 {return m_streams.begin(); };

virtual Streams::iterator DataStreamTool::endOfStreams ( ) [inline, virtual]

Definition at line 68 of file DataStreamTool.h.

00068 {return m_streams.end(); };

EventSelectorDataStream * DataStreamTool::getStream ( const std::string & info ) [virtual]

Retrieve stream by name.

Implements IDataStreamTool.

Definition at line 225 of file DataStreamTool.cpp.

00225                                                                            {
00226   Streams::iterator i = getStreamIterator(info);
00227   if ( m_streams.end() == i ) return NULL;
00228   return *i;
00229 }

EventSelectorDataStream * DataStreamTool::getStream ( size_type pos ) [virtual]

Definition at line 240 of file DataStreamTool.cpp.

00240                                                                    {
00241   if ( (pos >= 0) && ((size_t)pos < m_streams.size()) ) // pos has to point inside the vector
00242     return m_streams[pos];
00243   else
00244     return 0;
00245 }

virtual size_type DataStreamTool::size ( void ) [inline, virtual]

Implements IDataStreamTool.

Definition at line 75 of file DataStreamTool.h.

00075 { return m_streams.size(); };

StatusCode DataStreamTool::clear ( void ) [virtual]

Implements IDataStreamTool.

Definition at line 257 of file DataStreamTool.cpp.

00258 {
00259   
00260   StatusCode iret, status = StatusCode::SUCCESS;
00261   iret.ignore();
00262   
00263   MsgStream log(msgSvc(), name());
00264 
00265   // disconnect the streams
00266   for ( StreamSpecs::const_iterator il = m_streamSpecs.begin(); il != m_streamSpecs.end(); il++ ) {
00267     EventSelectorDataStream* s = getStream(*il);
00268     if ( NULL != s )   {
00269       if ( s->isInitialized() )    {
00270         iret = finalizeStream(s);
00271         if ( !iret.isSuccess() )  {
00272           log << MSG::ERROR << "Error finalizing Stream" << *il << endreq;
00273           status = iret;
00274         }
00275       }
00276       iret = eraseStream( *il );
00277       if ( !iret.isSuccess() )    {
00278         log << MSG::ERROR << "Error diconnecting Stream" << *il << endreq;
00279         status = iret;
00280       }
00281     }
00282   }
00283   
00284   m_streamSpecs.clear();
00285   
00286   return status;
00287 }

StatusCode DataStreamTool::createSelector	(	const std::string &	nam,
		const std::string &	typ,
		IEvtSelector *&	sel
	)			`[protected, virtual]`

Implements IDataStreamTool.

Definition at line 167 of file DataStreamTool.cpp.

00167                                                                                                         {
00168   MsgStream log(msgSvc(), name());
00169   IService* isvc = ROOT::Reflex::PluginService::Create<IService*>(typ, nam, serviceLocator());
00170   if ( isvc ) {
00171     StatusCode status = isvc->queryInterface(IID_IEvtSelector, (void**)&sel);
00172     if ( status.isSuccess() ) {
00173       return status;
00174     }
00175     sel = 0;
00176     isvc->release();
00177   }
00178   return StatusCode::FAILURE;
00179 }

StatusCode DataStreamTool::createStream	(	const std::string &	nam,
		const std::string &	info,
		EventSelectorDataStream *&	stream
	)			`[protected, virtual]`

Implements IDataStreamTool.

Definition at line 217 of file DataStreamTool.cpp.

00218                                                                            {
00219   stream = new EventSelectorDataStream(nam, info, serviceLocator());
00220 
00221   return StatusCode::SUCCESS;
00222 }

StatusCode DataStreamTool::connectStream ( EventSelectorDataStream * s ) [protected]

Connect single stream by reference.

Definition at line 290 of file DataStreamTool.cpp.

00291 {
00292   
00293   if ( 0 != s )   {
00294     s->addRef();
00295     m_streams.push_back(s);
00296     return StatusCode::SUCCESS;
00297   }
00298   
00299   return StatusCode::FAILURE;
00300   
00301 }

StatusCode DataStreamTool::connectStream ( const std::string & info ) [protected]

Connect single stream by name.

Definition at line 303 of file DataStreamTool.cpp.

00304 {
00305 
00306   if ( NULL != getStream(info) )   {
00307     MsgStream log(msgSvc(), name());
00308     log << MSG::WARNING << "Input stream " << info << "already in use" << endmsg;
00309   }
00310   char txt[32];
00311   std::string nam = name() + "_" + ::_itoa(++m_streamCount, txt, 10);
00312   EventSelectorDataStream* s = 0;
00313   StatusCode status = createStream(nam, info, s);
00314   if ( status.isSuccess() )   {
00315     return connectStream(s);
00316   }
00317   s->release();
00318   return status;
00319   
00320   
00321 }

DataStreamTool::Streams::iterator DataStreamTool::getStreamIterator ( const std::string & info ) [protected]

Definition at line 231 of file DataStreamTool.cpp.

00231                                                                                         {
00232   for ( Streams::iterator i = m_streams.begin(); i != m_streams.end(); i++ )    {
00233     if ( (*i)->definition() == info )    {
00234       return i;
00235     }
00236   }
00237   return m_streams.end();
00238 }

Member Data Documentation

size_type DataStreamTool::m_streamID [protected]

Definition at line 92 of file DataStreamTool.h.

size_type DataStreamTool::m_streamCount [protected]

Definition at line 94 of file DataStreamTool.h.

Streams DataStreamTool::m_streams [protected]

Definition at line 96 of file DataStreamTool.h.

StreamSpecs DataStreamTool::m_streamSpecs [protected]

Definition at line 98 of file DataStreamTool.h.

IIncidentSvc* DataStreamTool::m_incidentSvc [protected]

Reference to the indicent service.

Definition at line 101 of file DataStreamTool.h.

bool DataStreamTool::m_reconfigure [protected]

Definition at line 103 of file DataStreamTool.h.

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

/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r4/GaudiKernel/GaudiKernel/DataStreamTool.h
/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r4/GaudiKernel/src/Lib/DataStreamTool.cpp

	Gaudi Framework, version v20r4
	Generated: 8 Jan 2009

Gaudi Framework, version v20r4

DataStreamTool Class Reference

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation