FWLiteEnabler Class Reference

#include <FWLiteEnabler.h>

Public Member Functions
	FWLiteEnabler (const FWLiteEnabler &)=delete
FWLiteEnabler const &	operator= (FWLiteEnabler const &)=delete

Static Public Member Functions
static void	enable ()
	enable automatic library loading More...

Private Member Functions
	FWLiteEnabler ()

Static Private Attributes
static bool	enabled_

Friends
class	DummyClassToStopCompilerWarning

Detailed Description

helper class to enable fwlite. Using a free function enable() directly does not work in macros.

Definition at line 11 of file FWLiteEnabler.h.

Constructor & Destructor Documentation

FWLiteEnabler::FWLiteEnabler ( const FWLiteEnabler &  )

delete

FWLiteEnabler::FWLiteEnabler ( )

private

Definition at line 41 of file FWLiteEnabler.cc.

                               {
  }

Member Function Documentation

void FWLiteEnabler::enable ( )

static

enable automatic library loading

Definition at line 50 of file FWLiteEnabler.cc.

References MessageLogger_cfi::cerr, edmplugin::standard::config(), edmplugin::PluginManager::configure(), dir, enabled_, end, web.browse_db::env, fwlite::setRefStreamer(), and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by CmsShowMain::CmsShowMain(), AutoLibraryLoader::enable(), fwlite::EventContainer::EventContainer(), AutoLibraryLoader::loadAll(), and main().

                        {
   if (enabled_) { return; }
   enabled_ = true;

   edmplugin::PluginManager::configure(edmplugin::standard::config());
   static BareRootProductGetter s_getter;
   //this function must be called
   // so that the TClass we need will be available
   fwlite::setRefStreamer(&s_getter);

   //Make it easy to load our headers
   TInterpreter* intrp= gROOT->GetInterpreter();
   char const* env = getenv("CMSSW_FWLITE_INCLUDE_PATH");
   if(nullptr != env) {
     //this is a comma separated list
     char const* start = env;
     char const* end;
     do {
       //find end
       for(end=start; *end!=0 and *end != ':';++end);
       std::string dir(start, end);
       intrp->AddIncludePath(dir.c_str());
       start = end+1;
     } while(*end != 0);
   }

   bool foundCMSIncludes = false;
   env = getenv("CMSSW_BASE");
   if(nullptr != env) {
     foundCMSIncludes = true;
     std::string dir(env);
     dir += "/src";
     intrp->AddIncludePath(dir.c_str());
   }

   env = getenv("CMSSW_RELEASE_BASE");
   if(nullptr != env) {
     foundCMSIncludes = true;
     std::string dir(env);
     dir += "/src";
     intrp->AddIncludePath(dir.c_str());
   }
   if(not foundCMSIncludes) {
     std::cerr <<"Could not find the environment variables \n"
     <<"  CMSSW_BASE or\n"
     <<"  CMSSW_RELEASE_BASE\n"
     <<" therefore attempting to '#include' any CMS headers will not work"<<std::endl;
   }
   if (nullptr != gApplication) {
     gApplication->InitializeGraphics();
   }
  }

FWLiteEnabler const& FWLiteEnabler::operator= ( FWLiteEnabler const &  )

delete

Friends And Related Function Documentation

friend class DummyClassToStopCompilerWarning

friend

Definition at line 12 of file FWLiteEnabler.h.

Member Data Documentation

bool FWLiteEnabler::enabled_

staticprivate

Definition at line 20 of file FWLiteEnabler.h.

Referenced by enable().