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// -*- C++ -*-
//
// Package: LibraryLoader
// Class : FWLiteEnabler
//
// Implementation:
// <Notes on implementation>
//
//
// system include files
#include <iostream>
#include "TROOT.h"
#include "TInterpreter.h"
#include "TApplication.h"
// user include files
#include "FWCore/FWLite/interface/FWLiteEnabler.h"
#include "FWCore/FWLite/src/BareRootProductGetter.h"
#include "FWCore/PluginManager/interface/PluginManager.h"
#include "FWCore/PluginManager/interface/standard.h"
#include "FWCore/FWLite/interface/setRefStreamer.h"
//
// constants, enums and typedefs
//
//
// static data member definitions
//
bool FWLiteEnabler::enabled_(false);
//
// constructors and destructor
//
// Note: this ctor will never be invoked.
// All data and functions are static
FWLiteEnabler::FWLiteEnabler() {}
//
// member functions
//
void FWLiteEnabler::enable() {
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 = std::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 = std::getenv("CMSSW_BASE");
if (nullptr != env) {
foundCMSIncludes = true;
std::string dir(env);
dir += "/src";
intrp->AddIncludePath(dir.c_str());
}
env = std::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();
}
}
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