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RandomEngineStateProducer Class Reference

Description: Gets the state of the random number engines from the related service and stores it in the event. More...

#include <IOMC/RandomEngine/src/RandomEngineStateProducer.h>

Inheritance diagram for RandomEngineStateProducer:

List of all members.

Public Member Functions
	RandomEngineStateProducer (const edm::ParameterSet &)
	~RandomEngineStateProducer ()
Private Member Functions
virtual void	beginJob (const edm::EventSetup &)
virtual void	endJob ()
virtual void	produce (edm::Event &, const edm::EventSetup &)

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Detailed Description

Description: Gets the state of the random number engines from the related service and stores it in the event.

Implementation: This simply copies from the cache in the service, does a small amount of formatting, and puts the object in the event. The cache is filled at the beginning of processing for each event by a call from the InputSource to the service. This module gets called later.

Definition at line 30 of file RandomEngineStateProducer.h.

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Constructor & Destructor Documentation

RandomEngineStateProducer::RandomEngineStateProducer

(

const edm::ParameterSet &

iConfig

)

[explicit]

Definition at line 20 of file RandomEngineStateProducer.cc.

{
  //register your products
  produces<std::vector<RandomEngineState> >();
}

RandomEngineStateProducer::~RandomEngineStateProducer

(

)

Definition at line 27 of file RandomEngineStateProducer.cc.

{
}

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Member Function Documentation

void RandomEngineStateProducer::beginJob

(

const edm::EventSetup &

)

[private, virtual]

Reimplemented from edm::EDProducer.

Definition at line 63 of file RandomEngineStateProducer.cc.

{
}

void RandomEngineStateProducer::endJob

(

void

)

[private, virtual]

Reimplemented from edm::EDProducer.

Definition at line 69 of file RandomEngineStateProducer.cc.

{
}

void RandomEngineStateProducer::produce	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)			[private, virtual]

Implements edm::EDProducer.

Definition at line 33 of file RandomEngineStateProducer.cc.

References edm::Service< T >::isAvailable(), edm::Event::put(), RandomEngineState::setLabel(), RandomEngineState::setSeed(), and RandomEngineState::setState().

{
  std::auto_ptr<std::vector<RandomEngineState> > stateVector(new std::vector<RandomEngineState>);

  edm::Service<edm::RandomNumberGenerator> randomService;
  if (randomService.isAvailable()) {

    const std::vector<std::string>& strings = randomService->getCachedLabels();
    const std::vector<std::vector<uint32_t> >& states = randomService->getCachedStates();
    const std::vector<std::vector<uint32_t> >& seeds = randomService->getCachedSeeds();

    std::vector<std::string>::const_iterator iString = strings.begin();
    std::vector<std::vector<uint32_t> >::const_iterator iState = states.begin();
    std::vector<std::vector<uint32_t> >::const_iterator iSeed = seeds.begin();

    for ( ; iString != strings.end(); ++iString, ++iState, ++iSeed) {

      RandomEngineState engineState;
      engineState.setLabel(*iString);
      engineState.setState(*iState);
      engineState.setSeed(*iSeed);
      stateVector->push_back(engineState);
    }

    iEvent.put(stateVector);
  }
}

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The documentation for this class was generated from the following files:

• IOMC/RandomEngine/src/RandomEngineStateProducer.h
• IOMC/RandomEngine/src/RandomEngineStateProducer.cc

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