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#include "FWCore/Framework/interface/ESProducer.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/ESTransientHandle.h"
#include "FWCore/Framework/interface/ModuleFactory.h"
#include "FWCore/Concurrency/interface/SharedResourceNames.h"
#include "DetectorDescription/Core/interface/DDCompactView.h"
#include "DetectorDescription/Core/interface/DDRoot.h"
#include "DetectorDescription/Parser/interface/DDLParser.h"
#include "Geometry/Records/interface/IdealGeometryRecord.h"
#include "Geometry/Records/interface/GeometryFileRcd.h"
#include "CondFormats/Common/interface/FileBlob.h"
#include <memory>
class XMLIdealGeometryESProducer : public edm::ESProducer {
public:
XMLIdealGeometryESProducer(const edm::ParameterSet&);
using ReturnType = std::unique_ptr<DDCompactView>;
ReturnType produce(const IdealGeometryRecord&);
static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);
private:
const std::string rootDDName_; // this must be the form namespace:name
const edm::ESGetToken<FileBlob, GeometryFileRcd> blobToken_;
};
XMLIdealGeometryESProducer::XMLIdealGeometryESProducer(const edm::ParameterSet& iConfig)
: rootDDName_(iConfig.getParameter<std::string>("rootDDName")),
blobToken_(setWhatProduced(this).consumes(edm::ESInputTag("", iConfig.getParameter<std::string>("label")))) {
usesResources({{edm::ESSharedResourceNames::kDDGeometry}});
}
XMLIdealGeometryESProducer::ReturnType XMLIdealGeometryESProducer::produce(const IdealGeometryRecord& iRecord) {
edm::ESTransientHandle<FileBlob> gdd = iRecord.getTransientHandle(blobToken_);
auto cpv = std::make_unique<DDCompactView>(DDName(rootDDName_));
DDLParser parser(*cpv);
parser.getDDLSAX2FileHandler()->setUserNS(true);
parser.clearFiles();
std::unique_ptr<std::vector<unsigned char> > tb = (*gdd).getUncompressedBlob();
parser.parse(*tb, tb->size());
cpv->lockdown();
return cpv;
}
void XMLIdealGeometryESProducer::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
edm::ParameterSetDescription desc;
desc.add<std::string>("rootDDName")->setComment("The value must be of the form 'namespace:name'");
desc.add<std::string>("label")->setComment("product label used to get the FileBlob");
descriptions.addDefault(desc);
}
//define this as a plug-in
DEFINE_FWK_EVENTSETUP_MODULE(XMLIdealGeometryESProducer);
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