#include <RootAutoLibraryLoader.h>

Public Member Functions
virtual TClass *	GetClass (char const *classname, Bool_t load)
	return class type
virtual TClass *	GetClass (type_info const &typeinfo, Bool_t load)
	return class type
Static Public Member Functions
static void	enable ()
	interface for TClass generators
static void	loadAll ()
	load all known libraries holding dictionaries
Private Member Functions
RootAutoLibraryLoader const &	operator= (RootAutoLibraryLoader const &)
	RootAutoLibraryLoader ()
	RootAutoLibraryLoader (RootAutoLibraryLoader const &)
Private Attributes
char const *	classNameAttemptingToLoad_
bool	isInitializingCintex_
Friends
class	DummyClassToStopCompilerWarning

Detailed Description

Definition at line 19 of file RootAutoLibraryLoader.h.

Constructor & Destructor Documentation

RootAutoLibraryLoader::RootAutoLibraryLoader ( ) [private]

Definition at line 301 of file RootAutoLibraryLoader.cc.

References classNameAttemptingToLoad_, h, and isInitializingCintex_.

                                                :
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,27,6)
     classNameAttemptingToLoad_(0),
     isInitializingCintex_(true) {
#else
     classNameAttemptingToLoad_(0) {
#endif
      AssertHandler h;
      gROOT->AddClassGenerator(this);
      ROOT::Cintex::Cintex::Enable();
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,27,6)
      isInitializingCintex_ =false;
#endif
      //set the special cases
      std::map<std::string, std::string>& specials = cintToReflexSpecialCasesMap();
      if(specials.empty()) {
         addWrapperOfVectorOfBuiltin(specials,"bool");

         addWrapperOfVectorOfBuiltin(specials,"char");
         addWrapperOfVectorOfBuiltin(specials,"unsigned char");
         addWrapperOfVectorOfBuiltin(specials,"signed char");
         addWrapperOfVectorOfBuiltin(specials,"short");
         addWrapperOfVectorOfBuiltin(specials,"unsigned short");
         addWrapperOfVectorOfBuiltin(specials,"int");
         addWrapperOfVectorOfBuiltin(specials,"unsigned int");
         addWrapperOfVectorOfBuiltin(specials,"long");
         addWrapperOfVectorOfBuiltin(specials,"unsigned long");
         addWrapperOfVectorOfBuiltin(specials,"long long");
         addWrapperOfVectorOfBuiltin(specials,"unsigned long long");

         addWrapperOfVectorOfBuiltin(specials,"float");
         addWrapperOfVectorOfBuiltin(specials,"double");
      }
      //std::cout << "my loader" << std::endl;
      //remember if the callback was already set so we can chain together our results
      gPrevious = G__p_class_autoloading;
      G__set_class_autoloading_callback(&ALL_AutoLoadCallback);
      registerTypes();
   }

edm::RootAutoLibraryLoader::RootAutoLibraryLoader ( RootAutoLibraryLoader const & ) [private]

Member Function Documentation

void RootAutoLibraryLoader::enable ( ) [static]

interface for TClass generators

enable automatic library loading

Definition at line 405 of file RootAutoLibraryLoader.cc.

Referenced by edm::service::InitRootHandlers::InitRootHandlers(), loadAll(), and edm::StreamerOutputModuleBase::StreamerOutputModuleBase().

                                 {
      //static BareRootProductGetter s_getter;
      //static EDProductGetter::Operate s_op(&s_getter);
      static RootAutoLibraryLoader s_loader;
   }

TClass * RootAutoLibraryLoader::GetClass	(	type_info const &	typeinfo,
		Bool_t	load
	)		`[virtual]`

return class type

Definition at line 395 of file RootAutoLibraryLoader.cc.

References GetClass(), and svgfig::load().

                                                                         {
     //std::cout << "looking for type " << typeinfo.name() << std::endl;
      TClass* returnValue = 0;
      if(load) {
         return GetClass(typeinfo.name(), load);
      }
      return returnValue;
   }

TClass * RootAutoLibraryLoader::GetClass	(	char const *	classname,
		Bool_t	load
	)		`[virtual]`

return class type

Definition at line 346 of file RootAutoLibraryLoader.cc.

References className(), classNameAttemptingToLoad_, and isInitializingCintex_.

Referenced by GetClass().

                                                                     {
      TClass* returnValue = 0;
      if(classNameAttemptingToLoad_ != 0 && !strcmp(classname, classNameAttemptingToLoad_)) {
         // We can try to see if the class name contains "basic_string<char>".
         // If so, we replace "basic_string<char>" with "string" and try again.
         std::string className(classname);
         std::string::size_type idx = className.find("basic_string<char>");
         if (idx != std::string::npos) {
            className.replace(idx, 18, std::string("string"));
            //if basic_string<char> was the last argument to a templated class
            // then there would be an extra space to separate the two '>'
            if(className.size() > idx + 6 && className[idx + 6] == ' ') {
              className.replace(idx + 6, 1, "");
            }
            classNameAttemptingToLoad_ = className.c_str();
            returnValue = gROOT->GetClass(className.c_str(), kTRUE);
            classNameAttemptingToLoad_ = classname;
            return returnValue;
         }
         //NOTE: As of ROOT 5.27.06 this warning generates false positives for HepMC classes because
         // ROOT has special handling for them built into class.rules
         //std::cerr << "WARNING[RootAutoLibraryLoader]: Reflex failed to create CINT dictionary for " << classname << std::endl;
         return 0;
      }
      //std::cout << "looking for " << classname << " load " << (load? "T":"F") << std::endl;
      if (load) {
        //std::cout << " going to call loadLibraryForClass" << std::endl;
        //[ROOT 5.28] When Cintex is in its 'Enable' method it will register callbacks to build
        // TClasses. During this phase we do not want to actually force TClasses to have to 
        // come into existence.
#if ROOT_VERSION_CODE >= ROOT_VERSION(5,27,6)
        if (not isInitializingCintex_ and loadLibraryForClass(classname)) {
#else
         if (loadLibraryForClass(classname)) {
#endif
          //use this to check for infinite recursion attempt
          classNameAttemptingToLoad_ = classname;
          // This next call will create the TClass object for the class.
          // It will also attempt to load the dictionary for the class
          // if the second argument is kTRUE. This is the default, so it
          // need not be explicitly specified.
          returnValue = gROOT->GetClass(classname, kTRUE);
          classNameAttemptingToLoad_ = 0;
        }
      }
      return returnValue;
   }

void RootAutoLibraryLoader::loadAll ( ) [static]

load all known libraries holding dictionaries

Definition at line 412 of file RootAutoLibraryLoader.cc.

References edmplugin::PluginManager::categoryToInfos(), EcalCondDB::db, enable(), and reco::get().

                                  {
     // std::cout << "LoadAllDictionaries" << std::endl;
     enable();

     edmplugin::PluginManager* db =  edmplugin::PluginManager::get();

     typedef edmplugin::PluginManager::CategoryToInfos CatToInfos;

     CatToInfos::const_iterator itFound = db->categoryToInfos().find("Capability");

     if(itFound == db->categoryToInfos().end()) {
       return;
     }
     std::string lastClass;
     std::string const cPrefix("LCGReflex/");

     //give ROOT a name for the file we are loading
     RootLoadFileSentry sentry;

     for (edmplugin::PluginManager::Infos::const_iterator itInfo = itFound->second.begin(),
          itInfoEnd = itFound->second.end();
          itInfo != itInfoEnd; ++itInfo) {
       if (lastClass == itInfo->name_) {
         continue;
       }

       lastClass = itInfo->name_;
       edmplugin::PluginCapabilities::get()->load(lastClass);
       //NOTE: since we have the library already, we could be more efficient if we just load it ourselves
     }
   }