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# EventSelectorDataStream.cpp

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    00001 //====================================================================
    00002 //      EventSelectorDataStream.cpp
    00003 //--------------------------------------------------------------------
    00004 //
    00005 //      Package    : EventSelectorDataStream  (The LHCb Event Selector Package)
    00006 //
    00007 //
    00008 //      Author     : M.Frank
    00009 //  Created    : 4/10/00
    00010 //      Changes    :
    00011 //
    00012 //====================================================================
    00013 #define GAUDISVC_EVENTSELECTOR_EVENTSELECTORDATASTREAM_CPP 1
    00014 // Include files
    00015 #include "GaudiKernel/Tokenizer.h"
    00016 #include "GaudiKernel/IService.h"
    00017 #include "GaudiKernel/ISvcLocator.h"
    00018 #include "GaudiKernel/IConversionSvc.h"
    00019 #include "GaudiKernel/IDataManagerSvc.h"
    00020 #include "GaudiKernel/IPersistencySvc.h"
    00021 #include "GaudiKernel/PropertyMgr.h"
    00022 #include "GaudiKernel/MsgStream.h"
    00023 #include "GaudiKernel/EventSelectorDataStream.h"
    00024
    00025
    00026 // Output friend
    00027 MsgStream& operator<<(MsgStream& s, const EventSelectorDataStream& obj)    {
    00028   s << "Stream:"   << obj.name() << " Def:" << obj.definition();
    00029   return s;
    00030 }
    00031
    00032 // Output friend
    00033 std::ostream& operator<<(std::ostream& s, const EventSelectorDataStream& obj)    {
    00034   s << "Stream:"   << obj.name() << " Def:" << obj.definition();
    00035   return s;
    00036 }
    00037
    00038 // Standard Constructor
    00039 EventSelectorDataStream::EventSelectorDataStream(const std::string& nam, const std::string& def, ISvcLocator* svcloc)
    00040 : m_refCount(0),
    00041   m_pSelector(0),
    00042   m_pSvcLocator(svcloc)
    00043 {
    00044   m_name = nam;
    00045   m_definition = def;
    00046   m_initialized = false;
    00047   m_properties = new Properties();
    00048 }
    00049
    00050 // Standard Constructor
    00051 EventSelectorDataStream::~EventSelectorDataStream()   {
    00052   setSelector(0);
    00053   delete m_properties;
    00054 }
    00055
    00056 //--- IInterface::addRef
    00057 unsigned long EventSelectorDataStream::addRef()   {
    00058   m_refCount++;
    00059   return m_refCount;
    00060 }
    00061
    00062 //--- IInterface::release
    00063 unsigned long EventSelectorDataStream::release()   {
    00064   unsigned long count = --m_refCount;
    00065   if( count <= 0) {
    00066     delete this;
    00067   }
    00068   return count;
    00069 }
    00070
    00071 //--- IInterface::queryInterface
    00072 StatusCode EventSelectorDataStream::queryInterface(const InterfaceID& riid, void** ppvInterface)  {
    00073   if ( riid == IID_IInterface )   {
    00074     *ppvInterface = (IInterface*)this;
    00075   }
    00076   else   {
    00077      return NO_INTERFACE;
    00078   }
    00079   addRef();
    00080   return SUCCESS;
    00081 }
    00082
    00083 // Set selector
    00084 void EventSelectorDataStream::setSelector(IEvtSelector* pSelector)   {
    00085   if ( 0 != pSelector   )  pSelector->addRef();
    00086   if ( 0 != m_pSelector )  m_pSelector->release();
    00087   m_pSelector = pSelector;
    00088 }
    00089
    00090 // Allow access to individual properties by name
    00091 StringProperty* EventSelectorDataStream::property(const std::string& nam)    {
    00092   for ( Properties::iterator i = m_properties->begin(); i != m_properties->end(); i++ )   {
    00093     if ( (*i).name() == nam )    {
    00094       return &(*i);
    00095     }
    00096   }
    00097   return 0;
    00098 }
    00099
    00100 // Allow access to individual properties by name
    00101 const StringProperty* EventSelectorDataStream::property(const std::string& nam)   const  {
    00102   for ( Properties::const_iterator i = m_properties->begin(); i != m_properties->end(); i++ )   {
    00103     if ( (*i).name() == nam )    {
    00104       return &(*i);
    00105     }
    00106   }
    00107   return 0;
    00108 }
    00109
    00110 // Parse input criteria
    00111 StatusCode EventSelectorDataStream::initialize()   {
    00112   bool isData = true;
    00113   std::string auth, dbtyp, item, crit, sel, svc, stmt;
    00114   std::string cnt    = "/Event";
    00115   std::string db     = "<Unknown>";
    00116   Tokenizer tok(true);
    00117
    00118   IDataManagerSvc* eds;
    00119   StatusCode sc = m_pSvcLocator->service("EventDataSvc", eds);
    00120   if( !sc.isSuccess() ) {
    00121     std::cout << "ERROR: Unable to localize interface IID_IDataManagerSvc from service EventDataSvc"
    00122               << std::endl;
    00123     return sc;
    00124   }
    00125   else {
    00126     cnt = eds->rootName();
    00127   }
    00128   eds->release();
    00129   m_selectorType = m_criteria = "";
    00130   m_properties->erase(m_properties->begin(), m_properties->end());
    00131
    00132   tok.analyse(m_definition, " ", "", "", "=", "'", "'");
    00133   for ( Tokenizer::Items::iterator i = tok.items().begin(); i != tok.items().end(); i++ )   {
    00134     long hash = -1;
    00135     const std::string& tag = (*i).tag();
    00136     const std::string& val = (*i).value();
    00137     switch( ::toupper(tag[0]) )    {
    00138     case 'A':
    00139       auth = val;
    00140       break;
    00141     case 'C':
    00142       svc  = "EvtTupleSvc";
    00143       isData = false;
    00144     case 'E':
    00145       hash = val.find('#');
    00146       if ( hash > 0 )   {
    00147         cnt  = val.substr(0,hash);
    00148         item = val.substr(hash+1, val.length()-hash-1);
    00149       }
    00150       else    {
    00151         cnt  = val;
    00152         item = "Address";
    00153       }
    00154       break;
    00155     case 'D':
    00156       m_criteria     = "FILE " + val;
    00157       break;
    00158     case 'F':
    00159       switch( ::toupper(tag[1]) )    {
    00160       case 'I':
    00161         dbtyp        = "SICB";
    00162         m_criteria   = "FILE " + val;
    00163         break;
    00164       case 'U':
    00165         stmt = val;
    00166         break;
    00167       default:
    00168         break;
    00169       }
    00170       break;
    00171     case 'J':
    00172       m_criteria     = "JOBID " + val;
    00173       dbtyp          = "SICB";
    00174       break;
    00175     case 'T':
    00176       switch( ::toupper(tag[1]) )    {
    00177       case 'Y':
    00178         dbtyp = val;
    00179         break;
    00180       case 'A':
    00181         m_criteria   = "TAPE " + val;
    00182         dbtyp        = "SICB";
    00183         break;
    00184       default:
    00185         break;
    00186       }
    00187       break;
    00188     case 'S':
    00189       switch( ::toupper(tag[1]) )    {
    00190       case 'E':
    00191         sel = val;
    00192         break;
    00193       case 'V':
    00194         svc = val;
    00195         break;
    00196       default:
    00197         break;
    00198       }
    00199       break;
    00200     default:
    00201       m_properties->push_back(StringProperty(tag,val));
    00202       break;
    00203     }
    00204   }
    00205   if ( !isData )    { // Unfortunaltely options do not come in order...
    00206     m_selectorType = "EventCollectionSelector";
    00207   }
    00208   else if ( dbtyp == "SICB" )    {
    00209     m_selectorType = "SicbEventSelector";
    00210   }
    00211   else if ( dbtyp.substr(0,4) == "POOL" )    {
    00212     m_selectorType = "PoolDbEvtSelector";
    00213   }
    00214   else if ( svc.empty() ) {
    00215     m_selectorType = "DbEvtSelector";
    00216   }
    00217   else  {
    00218     m_selectorType = svc;
    00219   }
    00220   StatusCode status = StatusCode::SUCCESS;
    00221   if ( svc.length() == 0 && dbtyp.length() != 0 )    {
    00222     IPersistencySvc* ipers = 0;
    00223     status = m_pSvcLocator->getService("EventPersistencySvc", IID_IPersistencySvc, *pp_cast<IInterface>(&ipers));
    00224     if ( status.isSuccess() )   {
    00225       IConversionSvc* icnvSvc = 0;
    00226       status = ipers->getService(dbtyp, icnvSvc);
    00227       if ( status.isSuccess() )   {
    00228         IService* isvc = 0;
    00229         status = icnvSvc->queryInterface(IID_IService, pp_cast<void>(&isvc));
    00230         if ( status.isSuccess() )   {
    00231           svc = isvc->name();
    00232           isvc->release();
    00233         }
    00234       }
    00235     }
    00236   }
    00237   m_properties->push_back( StringProperty("Function",      stmt));
    00238   m_properties->push_back( StringProperty("CnvService",    svc));
    00239   m_properties->push_back( StringProperty("Authentication",auth));
    00240   m_properties->push_back( StringProperty("Container",     cnt));
    00241   m_properties->push_back( StringProperty("Item",          item));
    00242   m_properties->push_back( StringProperty("Criteria",      sel));
    00243   m_properties->push_back( StringProperty("DbType",        dbtyp));
    00244   m_properties->push_back( StringProperty("DB",            m_criteria));
    00245   m_initialized = status.isSuccess();
    00246   return status;
    00247 }
    00248
    00249 // Parse input criteria
    00250 StatusCode EventSelectorDataStream::finalize()   {
    00251   setSelector(0);
    00252   if ( m_properties )  {
    00253     m_properties->clear();
    00254   }
    00255   m_initialized = false;
    00256   return StatusCode::SUCCESS;
    00257 }