Gaudi::IODataManager Class Reference

#include <src/component/IODataManager.h>

Inheritance diagram for Gaudi::IODataManager:

Collaboration diagram for Gaudi::IODataManager:

Classes
struct	Entry

Public Member Functions
	~IODataManager () override=default
	Standard destructor. More...
StatusCode	initialize () override
	IService implementation: initialize the service. More...
StatusCode	finalize () override
	IService implementation: finalize the service. More...
StatusCode	connectRead (bool keep_open, Connection *ioDesc) override
	Open data stream in read mode. More...
StatusCode	connectWrite (Connection *con, IoType mode=Connection::CREATE, CSTR doctype="UNKNOWN") override
	Open data stream in write mode. More...
StatusCode	disconnect (Connection *ioDesc) override
	Release data stream. More...
Connection *	connection (const std::string &dsn) const override
	Retrieve known connection. More...
Connections	connections (const IInterface *owner) const override
	Get connection by owner instance (0=ALL) More...
StatusCode	read (Connection *ioDesc, void *const data, size_t len) override
	Read raw byte buffer from input stream. More...
StatusCode	write (Connection *con, const void *data, int len) override
	Write raw byte buffer to output stream. More...
long long int	seek (Connection *ioDesc, long long int where, int origin) override
	Seek on the file described by ioDesc. Arguments as in ::seek() More...
Public Member Functions inherited from extends< Service, IIODataManager >
void *	i_cast (const InterfaceID &tid) const override
	Implementation of IInterface::i_cast. More...
StatusCode	queryInterface (const InterfaceID &ti, void **pp) override
	Implementation of IInterface::queryInterface. More...
std::vector< std::string >	getInterfaceNames () const override
	Implementation of IInterface::getInterfaceNames. More...
	~extends () override=default
	Virtual destructor. More...
Public Member Functions inherited from Service
const std::string &	name () const override
	Retrieve name of the service. More...
StatusCode	configure () override
StatusCode	initialize () override
StatusCode	start () override
StatusCode	stop () override
StatusCode	finalize () override
StatusCode	terminate () override
Gaudi::StateMachine::State	FSMState () const override
Gaudi::StateMachine::State	targetFSMState () const override
StatusCode	reinitialize () override
StatusCode	restart () override
StatusCode	sysInitialize () override
	Initialize Service. More...
StatusCode	sysStart () override
	Initialize Service. More...
StatusCode	sysStop () override
	Initialize Service. More...
StatusCode	sysFinalize () override
	Finalize Service. More...
StatusCode	sysReinitialize () override
	Re-initialize the Service. More...
StatusCode	sysRestart () override
	Re-initialize the Service. More...
	Service (std::string name, ISvcLocator *svcloc)
	Standard Constructor. More...
SmartIF< ISvcLocator > &	serviceLocator () const override
	Retrieve pointer to service locator. More...
StatusCode	setProperties ()
	Method for setting declared properties to the values specified for the job. More...
template<class T >
StatusCode	service (const std::string &name, const T *&psvc, bool createIf=true) const
	Access a service by name, creating it if it doesn't already exist. More...
template<class T >
StatusCode	service (const std::string &name, T *&psvc, bool createIf=true) const
template<typename IFace = IService>
SmartIF< IFace >	service (const std::string &name, bool createIf=true) const
template<class T >
StatusCode	service (const std::string &svcType, const std::string &svcName, T *&psvc) const
	Access a service by name and type, creating it if it doesn't already exist. More...
template<class T >
StatusCode	declareTool (ToolHandle< T > &handle, std::string toolTypeAndName, bool createIf=true)
	Declare used tool. More...
SmartIF< IAuditorSvc > &	auditorSvc () const
	The standard auditor service.May not be invoked before sysInitialize() has been invoked. More...
Public Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	PropertyHolder ()=default
	~PropertyHolder () override=default
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Details::PropertyBase &prop)
	Declare a property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, TYPE &value, const std::string &doc="none")
	Helper to wrap a regular data member and use it as a regular property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, TYPE &value, const std::string &doc="none") const
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, Gaudi::Property< TYPE, VERIFIER, HANDLERS > &prop, const std::string &doc="none")
	Declare a PropertyBase instance setting name and documentation. More...
Gaudi::Details::PropertyBase *	declareRemoteProperty (const std::string &name, IProperty *rsvc, const std::string &rname="")
	Declare a remote property. More...
StatusCode	setProperty (const Gaudi::Details::PropertyBase &p) override
	set the property form another property More...
StatusCode	setProperty (const std::string &s) override
	set the property from the formatted string More...
StatusCode	setProperty (const std::string &n, const std::string &v) override
	set the property from name and the value More...
StatusCode	setProperty (const std::string &name, const TYPE &value)
	set the property form the value More...
StatusCode	getProperty (Gaudi::Details::PropertyBase *p) const override
	get the property More...
const Gaudi::Details::PropertyBase &	getProperty (const std::string &name) const override
	get the property by name More...
StatusCode	getProperty (const std::string &n, std::string &v) const override
	convert the property to the string More...
const std::vector< Gaudi::Details::PropertyBase * > &	getProperties () const override
	get all properties More...
bool	hasProperty (const std::string &name) const override
	Return true if we have a property with the given name. More...
	PropertyHolder (const PropertyHolder &)=delete
PropertyHolder &	operator= (const PropertyHolder &)=delete
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, GaudiHandleBase &ref, const std::string &doc="none")
	Specializations for various GaudiHandles. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, GaudiHandleArrayBase &ref, const std::string &doc="none")
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, DataObjectHandleBase &ref, const std::string &doc="none")
Public Member Functions inherited from CommonMessagingBase
virtual	~CommonMessagingBase ()=default
	Virtual destructor. More...
SmartIF< IMessageSvc > &	msgSvc () const
	The standard message service. More...
MsgStream &	msgStream () const
	Return an uninitialized MsgStream. More...
MsgStream &	msgStream (const MSG::Level level) const
	Predefined configurable message stream for the efficient printouts. More...
MsgStream &	always () const
	shortcut for the method msgStream(MSG::ALWAYS) More...
MsgStream &	fatal () const
	shortcut for the method msgStream(MSG::FATAL) More...
MsgStream &	err () const
	shortcut for the method msgStream(MSG::ERROR) More...
MsgStream &	error () const
	shortcut for the method msgStream(MSG::ERROR) More...
MsgStream &	warning () const
	shortcut for the method msgStream(MSG::WARNING) More...
MsgStream &	info () const
	shortcut for the method msgStream(MSG::INFO) More...
MsgStream &	debug () const
	shortcut for the method msgStream(MSG::DEBUG) More...
MsgStream &	verbose () const
	shortcut for the method msgStream(MSG::VERBOSE) More...
MsgStream &	msg () const
	shortcut for the method msgStream(MSG::INFO) More...
MSG::Level	msgLevel () const
	get the output level from the embedded MsgStream More...
MSG::Level	outputLevel () const __attribute__((deprecated))
	Backward compatibility function for getting the output level. More...
bool	msgLevel (MSG::Level lvl) const
	get the output level from the embedded MsgStream More...
Public Member Functions inherited from extend_interfaces< Interfaces... >
	~extend_interfaces () override=default
	Virtual destructor. More...

Protected Types
typedef const std::string &	CSTR
typedef std::map< std::string, Entry * >	ConnectionMap
typedef std::map< std::string, std::string >	FidMap

Protected Member Functions
StatusCode	connectDataIO (int typ, IoType rw, CSTR fn, CSTR technology, bool keep, Connection *con)
StatusCode	reconnect (Entry *e)
StatusCode	error (CSTR msg, bool rethrow)
	Small routine to issue exceptions. More...
StatusCode	establishConnection (Connection *con)
Protected Member Functions inherited from Service
	~Service () override
	Standard Destructor. More...
int	outputLevel () const
	get the Service's output level More...
Protected Member Functions inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
Gaudi::Details::PropertyBase *	property (const std::string &name) const
Protected Member Functions inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
void	updateMsgStreamOutputLevel (int level)
	Update the output level of the cached MsgStream. More...

Protected Attributes
Gaudi::Property< std::string >	m_catalogSvcName
Gaudi::Property< bool >	m_useGFAL {this, "UseGFAL", true, "flag for auto gfal data access"}
Gaudi::Property< bool >	m_quarantine
Gaudi::Property< int >	m_ageLimit {this, "AgeLimit", 2, "age limit"}
Gaudi::Property< bool >	m_disablePFNWarning
ConnectionMap	m_connectionMap
	Map with I/O descriptors. More...
SmartIF< IFileCatalog >	m_catalog
	Reference to file catalog. More...
FidMap	m_fidMap
	Map of FID to PFN. More...
SmartIF< IIncidentSvc >	m_incSvc
Protected Attributes inherited from Service
Gaudi::StateMachine::State	m_state = Gaudi::StateMachine::OFFLINE
	Service state. More...
Gaudi::StateMachine::State	m_targetState = Gaudi::StateMachine::OFFLINE
	Service state. More...
Gaudi::Property< int >	m_outputLevel {this, "OutputLevel", MSG::NIL, "output level"}
Gaudi::Property< bool >	m_auditInit {this, "AuditServices", false, "[[deprecated]] unused"}
Gaudi::Property< bool >	m_auditorInitialize {this, "AuditInitialize", false, "trigger auditor on initialize()"}
Gaudi::Property< bool >	m_auditorStart {this, "AuditStart", false, "trigger auditor on start()"}
Gaudi::Property< bool >	m_auditorStop {this, "AuditStop", false, "trigger auditor on stop()"}
Gaudi::Property< bool >	m_auditorFinalize {this, "AuditFinalize", false, "trigger auditor on finalize()"}
Gaudi::Property< bool >	m_auditorReinitialize {this, "AuditReinitialize", false, "trigger auditor on reinitialize()"}
Gaudi::Property< bool >	m_auditorRestart {this, "AuditRestart", false, "trigger auditor on restart()"}
SmartIF< IAuditorSvc >	m_pAuditorSvc
	Auditor Service. More...

Additional Inherited Members
Public Types inherited from extends< Service, IIODataManager >
using	base_class = extends
	Typedef to this class. More...
using	extend_interfaces_base = extend_interfaces< Interfaces... >
	Typedef to the base of this class. More...
Public Types inherited from Service
typedef Gaudi::PluginService::Factory< IService *, const std::string &, ISvcLocator * >	Factory
Public Types inherited from PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
using	PropertyHolderImpl = PropertyHolder< CommonMessaging< implements< IService, IProperty, IStateful > > >
	Typedef used to refer to this class from derived classes, as in. More...
Public Types inherited from CommonMessaging< implements< IService, IProperty, IStateful > >
using	base_class = CommonMessaging
Public Types inherited from extend_interfaces< Interfaces... >
using	ext_iids = typename Gaudi::interface_list_cat< typename Interfaces::ext_iids... >::type
	take union of the ext_iids of all Interfaces... More...

Detailed Description

Definition at line 30 of file IODataManager.h.

Member Typedef Documentation

typedef std::map<std::string, Entry*> Gaudi::IODataManager::ConnectionMap

protected

Definition at line 44 of file IODataManager.h.

typedef const std::string& Gaudi::IODataManager::CSTR

protected

Definition at line 33 of file IODataManager.h.

typedef std::map<std::string, std::string> Gaudi::IODataManager::FidMap

protected

Definition at line 45 of file IODataManager.h.

Constructor & Destructor Documentation

Gaudi::IODataManager::~IODataManager ( )

overridedefault

Standard destructor.

Member Function Documentation

StatusCode IODataManager::connectDataIO ( int  typ, IoType  rw, CSTR  fn, CSTR  technology, bool  keep, Connection *  con  )

protected

Definition at line 238 of file IODataManager.cpp.

{
  MsgStream log( msgSvc(), name() );
  std::string dsn = dataset;
  try {
    StatusCode sc( StatusCode::SUCCESS, true );
    if (::strncasecmp( dsn.c_str(), "FID:", 4 ) == 0 )
      dsn = dataset.substr( 4 ), typ = FID;
    else if (::strncasecmp( dsn.c_str(), "LFN:", 4 ) == 0 )
      dsn = dataset.substr( 4 ), typ = LFN;
    else if (::strncasecmp( dsn.c_str(), "PFN:", 4 ) == 0 )
      dsn = dataset.substr( 4 ), typ = PFN;
    else if ( typ == UNKNOWN )
      return connectDataIO( PFN, rw, dsn, technology, keep_open, connection );

    if ( std::find( s_badFiles.begin(), s_badFiles.end(), dsn ) != s_badFiles.end() ) {
      m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
      return IDataConnection::BAD_DATA_CONNECTION;
    }
    if ( typ == FID ) {
      auto fi = m_connectionMap.find( dsn );
      if ( fi == m_connectionMap.end() ) {
        IFileCatalog::Files files;
        m_catalog->getPFN( dsn, files );
        if ( files.empty() ) {
          if ( !m_useGFAL ) {
            if ( m_quarantine ) s_badFiles.insert( dsn );
            m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
            error( "connectDataIO> failed to resolve FID:" + dsn, false ).ignore();
            return IDataConnection::BAD_DATA_CONNECTION;
          } else if ( dsn.length() == 36 && dsn[8] == '-' && dsn[13] == '-' ) {
            std::string gfal_name = "gfal:guid:" + dsn;
            m_fidMap[dsn] = m_fidMap[dataset] = m_fidMap[gfal_name] = dsn;
            sc = connectDataIO( PFN, rw, gfal_name, technology, keep_open, connection );
            if ( sc.isSuccess() ) return sc;
            if ( m_quarantine ) s_badFiles.insert( dsn );
          }
          if ( m_quarantine ) s_badFiles.insert( dsn );
          m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
          error( "connectDataIO> Failed to resolve FID:" + dsn, false ).ignore();
          return IDataConnection::BAD_DATA_CONNECTION;
        }
        // keep track of the current return code before we start iterating over
        // replicas
        auto appmgr        = serviceLocator()->as<IProperty>();
        int origReturnCode = Gaudi::getAppReturnCode( appmgr );
        for ( auto i = files.cbegin(); i != files.cend(); ++i ) {
          std::string pfn = i->first;
          if ( i != files.cbegin() ) {
            log << MSG::WARNING << "Attempt to connect dsn:" << dsn << " with next entry in data federation:" << pfn
                << "." << endmsg;
          }
          sc = connectDataIO( PFN, rw, pfn, technology, keep_open, connection );
          if ( !sc.isSuccess() ) {
            if ( m_quarantine ) s_badFiles.insert( pfn );
            m_incSvc->fireIncident( Incident( pfn, IncidentType::FailInputFile ) );
          } else {
            m_fidMap[dsn] = m_fidMap[dataset] = m_fidMap[pfn] = dsn;
            // we found a working replica, let's reset the return code to the old value
            Gaudi::setAppReturnCode( appmgr, origReturnCode, true ).ignore();
            return sc;
          }
        }
        log << MSG::ERROR << "Failed to open dsn:" << dsn << " Federated file could not be resolved from "
            << files.size() << " entries." << endmsg;
        return IDataConnection::BAD_DATA_CONNECTION;
      }
      return S_ERROR;
    }
    std::string fid;
    auto j = m_fidMap.find( dsn );
    if ( j == m_fidMap.end() ) {
      IFileCatalog::Files files;
      switch ( typ ) {
      case LFN:
        fid = m_catalog->lookupLFN( dsn );
        if ( fid.empty() ) {
          m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
          log << MSG::ERROR << "Failed to resolve LFN:" << dsn << " Cannot access this dataset." << endmsg;
          return IDataConnection::BAD_DATA_CONNECTION;
        }
        break;
      case PFN:
        fid = m_catalog->lookupPFN( dsn );
        if ( !fid.empty() ) m_catalog->getPFN( fid, files );
        if ( files.empty() ) {
          if ( rw == Connection::CREATE || rw == Connection::RECREATE ) {
            if ( fid.empty() ) fid = m_catalog->createFID();
            m_catalog->registerPFN( fid, dsn, technology );
            log << MSG::INFO << "Referring to dataset " << dsn << " by its file ID:" << fid << endmsg;
          } else {
            fid = dsn;
          }
        }
        break;
      }
    } else {
      fid = j->second;
    }
    if ( typ == PFN ) {
      // Open PFN
      auto fi = m_connectionMap.find( fid );
      if ( fi == m_connectionMap.end() ) {
        connection->setFID( fid );
        connection->setPFN( dsn );
        auto e = new Entry( technology, keep_open, rw, connection );
        // Here we open the file!
        if ( !reconnect( e ).isSuccess() ) {
          delete e;
          if ( m_quarantine ) s_badFiles.insert( dsn );
          m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
          error( "connectDataIO> Cannot connect to database: PFN=" + dsn + " FID=" + fid, false ).ignore();
          return IDataConnection::BAD_DATA_CONNECTION;
        }
        fid               = connection->fid();
        m_fidMap[dataset] = m_fidMap[dsn] = m_fidMap[fid] = fid;
        if ( !( rw == Connection::CREATE || rw == Connection::RECREATE ) ) {
          if ( !m_disablePFNWarning && strcasecmp( dsn.c_str(), fid.c_str() ) == 0 ) {
            log << MSG::ERROR << "Referring to existing dataset " << dsn << " by its physical name." << endmsg;
            log << "You may not be able to navigate back to the input file"
                << " -- processing continues" << endmsg;
          }
        }
        m_connectionMap.emplace( fid, e ); // note: only if we disconnect does e get deleted??
        return S_OK;
      }
      // Here we open the file!
      if ( !reconnect( ( *fi ).second ).isSuccess() ) {
        if ( m_quarantine ) s_badFiles.insert( dsn );
        m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
        error( "connectDataIO> Cannot connect to database: PFN=" + dsn + " FID=" + fid, false ).ignore();
        return IDataConnection::BAD_DATA_CONNECTION;
      }
      return S_OK;
    }
    sc = connectDataIO( FID, rw, fid, technology, keep_open, connection );
    if ( !sc.isSuccess() && m_quarantine ) {
      s_badFiles.insert( fid );
    } else if ( typ == LFN ) {
      m_fidMap[dataset] = fid;
    }
    return sc;
  } catch ( std::exception& e ) {
    error( std::string( "connectDataIO> Caught exception:" ) + e.what(), false ).ignore();
  } catch ( ... ) {
    error( std::string( "connectDataIO> Caught unknown exception" ), false ).ignore();
  }
  m_incSvc->fireIncident( Incident( dsn, IncidentType::FailInputFile ) );
  error( "connectDataIO> The dataset " + dsn + " cannot be opened.", false ).ignore();
  s_badFiles.insert( dsn );
  return IDataConnection::BAD_DATA_CONNECTION;
}

IIODataManager::Connection * IODataManager::connection ( const std::string &  dsn ) const

override

Retrieve known connection.

Definition at line 210 of file IODataManager.cpp.

{
  auto j = m_fidMap.find( dataset );
  if ( j == m_fidMap.end() ) return nullptr;
  auto i = m_connectionMap.find( j->second );
  return ( i != m_connectionMap.end() ) ? i->second->connection : nullptr;
}

IODataManager::Connections IODataManager::connections ( const IInterface *  owner ) const

override

Get connection by owner instance (0=ALL)

Definition at line 87 of file IODataManager.cpp.

{
  Connections conns;
  transform_copy_if( std::begin( m_connectionMap ), std::end( m_connectionMap ), std::back_inserter( conns ),
                     []( ConnectionMap::const_reference i ) { return i.second->connection; },
                     [&]( const IDataConnection* c ) { return !owner || c->owner() == owner; } );
  return conns;
}

StatusCode IODataManager::connectRead ( bool  keep_open, Connection *  ioDesc  )

override

Open data stream in read mode.

Connect data file for writing.

Definition at line 97 of file IODataManager.cpp.

{
  if ( !establishConnection( con ) ) {
    return connectDataIO( UNKNOWN, Connection::READ, con->name(), "UNKNOWN", keep_open, con );
  }
  std::string dsn = con ? con->name() : std::string( "Unknown" );
  return error( "Failed to connect to data:" + dsn, false );
}

StatusCode IODataManager::connectWrite ( Connection *  con, IoType  mode = Connection::CREATE, CSTR  doctype = "UNKNOWN"  )

override

Open data stream in write mode.

Connect data file for reading.

Definition at line 107 of file IODataManager.cpp.

{
  if ( !establishConnection( con ) ) {
    return connectDataIO( UNKNOWN, mode, con->name(), doctype, true, con );
  }
  std::string dsn = con ? con->name() : std::string( "Unknown" );
  return error( "Failed to connect to data:" + dsn, false );
}

StatusCode IODataManager::disconnect ( Connection *  ioDesc )

override

Release data stream.

Definition at line 134 of file IODataManager.cpp.

{
  if ( con ) {
    std::string dataset = con->name();
    std::string dsn     = dataset;
    StatusCode sc       = con->disconnect();
    if (::strncasecmp( dsn.c_str(), "FID:", 4 ) == 0 )
      dsn = dataset.substr( 4 );
    else if (::strncasecmp( dsn.c_str(), "LFN:", 4 ) == 0 )
      dsn = dataset.substr( 4 );
    else if (::strncasecmp( dsn.c_str(), "PFN:", 4 ) == 0 )
      dsn = dataset.substr( 4 );

    auto j = m_fidMap.find( dataset );
    if ( j != m_fidMap.end() ) {
      std::string fid       = j->second;
      std::string gfal_name = "gfal:guid:" + fid;
      auto i                = m_connectionMap.find( fid );
      m_fidMap.erase( j );
      if ( ( j = m_fidMap.find( fid ) ) != m_fidMap.end() ) m_fidMap.erase( j );
      if ( ( j = m_fidMap.find( gfal_name ) ) != m_fidMap.end() ) m_fidMap.erase( j );
      if ( i != m_connectionMap.end() && i->second ) {
        IDataConnection* c = i->second->connection;
        if ( ( j = m_fidMap.find( c->pfn() ) ) != m_fidMap.end() ) m_fidMap.erase( j );
        if ( c->isConnected() ) {
          MsgStream log( msgSvc(), name() );
          c->disconnect();
          log << MSG::INFO << "Disconnect from dataset " << dsn << " [" << fid << "]" << endmsg;
        }
        delete i->second;
        m_connectionMap.erase( i );
      }
    }
    return sc;
  }
  return S_ERROR;
}

StatusCode IODataManager::error ( CSTR  msg, bool  rethrow  )

protected

Small routine to issue exceptions.

Definition at line 78 of file IODataManager.cpp.

{
  MsgStream log( msgSvc(), name() );
  log << MSG::ERROR << "Error: " << msg << endmsg;
  if ( rethrow ) System::breakExecution();
  return S_ERROR;
}

StatusCode IODataManager::establishConnection ( Connection *  con )

protected

Definition at line 218 of file IODataManager.cpp.

{
  if ( !con ) return error( "Severe logic bug: No connection object avalible.", true );

  if ( con->isConnected() ) {
    con->resetAge();
    return S_OK;
  }
  auto i = m_connectionMap.find( con->name() );
  if ( i != m_connectionMap.end() ) {
    Connection* c = i->second->connection;
    if ( c != con ) {
      m_incSvc->fireIncident( Incident( con->name(), IncidentType::FailInputFile ) );
      return error( "Severe logic bug: Twice identical connection object for DSN:" + con->name(), true );
    }
    if ( reconnect( i->second ).isSuccess() ) return S_OK;
  }
  return S_ERROR;
}

StatusCode IODataManager::finalize ( )

override

IService implementation: finalize the service.

Definition at line 71 of file IODataManager.cpp.

{
  m_catalog = nullptr; // release
  return Service::finalize();
}

StatusCode IODataManager::initialize ( )

override

IService implementation: initialize the service.

IService implementation: Db event selector override.

Definition at line 47 of file IODataManager.cpp.

{
  // Initialize base class
  StatusCode status = Service::initialize();
  MsgStream log( msgSvc(), name() );
  if ( !status.isSuccess() ) {
    log << MSG::ERROR << "Error initializing base class Service!" << endmsg;
    return status;
  }
  // Retrieve conversion service handling event iteration
  m_catalog = serviceLocator()->service( m_catalogSvcName );
  if ( !m_catalog ) {
    log << MSG::ERROR << "Unable to localize interface IFileCatalog from service:" << m_catalogSvcName << endmsg;
    return StatusCode::FAILURE;
  }
  m_incSvc = serviceLocator()->service( "IncidentSvc" );
  if ( !m_incSvc ) {
    log << MSG::ERROR << "Error initializing IncidentSvc Service!" << endmsg;
    return status;
  }
  return status;
}

StatusCode IODataManager::read ( Connection *  ioDesc, void *const  data, size_t  len  )

override

Read raw byte buffer from input stream.

Definition at line 117 of file IODataManager.cpp.

{
  return establishConnection( con ).isSuccess() ? con->read( data, len ) : S_ERROR;
}

StatusCode IODataManager::reconnect ( Entry *  e )

protected

Definition at line 172 of file IODataManager.cpp.

{
  StatusCode sc = S_ERROR;
  if ( e && e->connection ) {
    switch ( e->ioType ) {
    case Connection::READ:
      sc = e->connection->connectRead();
      break;
    case Connection::UPDATE:
    case Connection::CREATE:
    case Connection::RECREATE:
      sc = e->connection->connectWrite( e->ioType );
      break;
    default:
      return S_ERROR;
    }
    if ( sc.isSuccess() && e->ioType == Connection::READ ) {
      std::vector<Entry*> to_retire;
      e->connection->resetAge();
      transform_copy_if( std::begin( m_connectionMap ), std::end( m_connectionMap ), std::back_inserter( to_retire ),
                         select2nd, [&]( Entry* i ) {
                           IDataConnection* c = i->connection;
                           return e->connection != c && c->isConnected() && !i->keepOpen && c->ageFile() > m_ageLimit;
                         } );
      if ( !to_retire.empty() ) {
        MsgStream log( msgSvc(), name() );
        std::for_each( std::begin( to_retire ), std::end( to_retire ), [&]( Entry* j ) {
          IDataConnection* c = j->connection;
          c->disconnect();
          log << MSG::INFO << "Disconnect from dataset " << c->pfn() << " [" << c->fid() << "]" << endmsg;
        } );
      }
    }
  }
  return sc;
}

long long int IODataManager::seek ( Connection *  ioDesc, long long int  where, int  origin  )

override

Seek on the file described by ioDesc. Arguments as in ::seek()

Definition at line 129 of file IODataManager.cpp.

{
  return establishConnection( con ).isSuccess() ? con->seek( where, origin ) : -1;
}

StatusCode IODataManager::write ( Connection *  con, const void *  data, int  len  )

override

Write raw byte buffer to output stream.

Definition at line 123 of file IODataManager.cpp.

{
  return establishConnection( con ).isSuccess() ? con->write( data, len ) : S_ERROR;
}

Member Data Documentation

Gaudi::Property<int> Gaudi::IODataManager::m_ageLimit {this, "AgeLimit", 2, "age limit"}

protected

Definition at line 52 of file IODataManager.h.

SmartIF<IFileCatalog> Gaudi::IODataManager::m_catalog

protected

Reference to file catalog.

Definition at line 60 of file IODataManager.h.

Gaudi::Property<std::string> Gaudi::IODataManager::m_catalogSvcName

protected

Initial value:

{this, "CatalogType", "Gaudi::MultiFileCatalog/FileCatalog",
                                                  "name of the file catalog service"}

Definition at line 47 of file IODataManager.h.

ConnectionMap Gaudi::IODataManager::m_connectionMap

protected

Map with I/O descriptors.

Definition at line 58 of file IODataManager.h.

Gaudi::Property<bool> Gaudi::IODataManager::m_disablePFNWarning

protected

Initial value:

{
        this, "DisablePFNWarning", false,
        "if set to True,  we will not report when a file is opened by its physical name"}

Definition at line 53 of file IODataManager.h.

FidMap Gaudi::IODataManager::m_fidMap

protected

Map of FID to PFN.

Definition at line 62 of file IODataManager.h.

SmartIF<IIncidentSvc> Gaudi::IODataManager::m_incSvc

protected

Definition at line 68 of file IODataManager.h.

Gaudi::Property<bool> Gaudi::IODataManager::m_quarantine

protected

Initial value:

{this, "QuarantineFiles", true,
                                       "if unaccessible files should be quarantines in job"}

Definition at line 50 of file IODataManager.h.

Gaudi::Property<bool> Gaudi::IODataManager::m_useGFAL {this, "UseGFAL", true, "flag for auto gfal data access"}

protected

Definition at line 49 of file IODataManager.h.

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

• GaudiUtils/src/component/IODataManager.h
• GaudiUtils/src/component/IODataManager.cpp