ThePEG::RandomEngineGlue Class Reference

#include <RandomEngineGlue.h>

Inheritance diagram for ThePEG::RandomEngineGlue:

Classes
class	Proxy

Public Member Functions
void	flush ()
	RandomEngineGlue ()
void	setRandomEngine (CLHEP::HepRandomEngine *v)
virtual	~RandomEngineGlue ()

Static Public Member Functions
static void	Init ()

Protected Member Functions
virtual IBPtr	clone () const
virtual void	doinit () throw (InitException)
virtual void	fill ()
virtual IBPtr	fullclone () const
virtual void	setSeed (long seed)

Private Attributes
Proxy::ProxyID	proxyID
CLHEP::HepRandomEngine *	randomEngine

Static Private Attributes
static ClassDescription < RandomEngineGlue >	initRandomEngineGlue

Detailed Description

Definition at line 23 of file RandomEngineGlue.h.

Constructor & Destructor Documentation

RandomEngineGlue::RandomEngineGlue

(

)

Definition at line 18 of file RandomEngineGlue.cc.

                                   :
    randomEngine(nullptr)
{
}

RandomEngineGlue::~RandomEngineGlue ( )

virtual

Definition at line 23 of file RandomEngineGlue.cc.

{
}

Member Function Documentation

virtual IBPtr ThePEG::RandomEngineGlue::clone ( void  ) const

inlineprotectedvirtual

Definition at line 64 of file RandomEngineGlue.h.

{ return new_ptr(*this); }

void RandomEngineGlue::doinit ( ) throw ( InitException )

protectedvirtual

Definition at line 52 of file RandomEngineGlue.cc.

References ThePEG::Proxy< Proxy >::find(), flush(), proxyID, and randomEngine.

{
    RandomGenerator::doinit();

    boost::shared_ptr<Proxy> proxy = Proxy::find(proxyID);
    if (!proxy)
        throw InitException();

    proxy->instance = this;
        randomEngine = proxy->getRandomEngine();
    flush();
}

void RandomEngineGlue::fill ( void  )

protectedvirtual

Definition at line 33 of file RandomEngineGlue.cc.

References Exception, edm::errors::LogicError, and randomEngine.

{
        if(randomEngine == nullptr) {
          throw edm::Exception(edm::errors::LogicError)
            << "The PEG code attempted to a generate random number while\n"
            << "the engine pointer was null. This might mean that the code\n"
            << "was tried to generate a random number outside the event and\n"
            << "beginLuminosityBlock methods, which is not allowed.\n";
        }
    nextNumber = theNumbers.begin();
    for(RndVector::iterator it = nextNumber; it != theNumbers.end(); ++it)
        *it = randomEngine->flat();
}

void RandomEngineGlue::flush

(

)

Definition at line 27 of file RandomEngineGlue.cc.

Referenced by doinit(), and ThePEGInterface::flushRandomNumberGenerator().

{
    RandomGenerator::flush();
    gaussSaved = false;
}

virtual IBPtr ThePEG::RandomEngineGlue::fullclone ( ) const

inlineprotectedvirtual

Definition at line 65 of file RandomEngineGlue.h.

{ return new_ptr(*this); }

void RandomEngineGlue::Init ( void  )

static

Definition at line 67 of file RandomEngineGlue.cc.

References proxyID.

                            {
    typedef Proxy::ProxyID ProxyID;

    static ClassDocumentation<RandomEngineGlue> documentation
        ("Interface to the CMSSW RandomNumberEngine.");
    static Parameter<RandomEngineGlue, ProxyID> interfaceProxyID
        ("ProxyID", "The ProxyID.",
         &RandomEngineGlue::proxyID, ProxyID(),
         ProxyID(), ProxyID(), false, false, false);

    interfaceProxyID.rank(11);
}

void ThePEG::RandomEngineGlue::setRandomEngine ( CLHEP::HepRandomEngine *  v )

inline

Definition at line 28 of file RandomEngineGlue.h.

References randomEngine, and findQualityFiles::v.

Referenced by ThePEGInterface::setPEGRandomEngine().

{ randomEngine = v; }

void RandomEngineGlue::setSeed ( long  seed )

protectedvirtual

Definition at line 47 of file RandomEngineGlue.cc.

{
    // we ignore this, CMSSW overrides the seed from ThePEG
}

Member Data Documentation

ClassDescription< RandomEngineGlue > RandomEngineGlue::initRandomEngineGlue

staticprivate

Definition at line 73 of file RandomEngineGlue.h.

Proxy::ProxyID ThePEG::RandomEngineGlue::proxyID

private

Definition at line 70 of file RandomEngineGlue.h.

Referenced by doinit(), and Init().

CLHEP::HepRandomEngine* ThePEG::RandomEngineGlue::randomEngine

private

Definition at line 71 of file RandomEngineGlue.h.

Referenced by doinit(), fill(), and setRandomEngine().