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File indexing completed on 2022-06-14 22:35:53

0001 #include "DetectorDescription/DDCMS/interface/DDDetector.h"
0002 #include "DetectorDescription/DDCMS/interface/DDParsingContext.h"
0003 #include "FWCore/MessageLogger/interface/MessageLogger.h"
0004 #include <DD4hep/Detector.h>
0005 #include <DD4hep/DetectorTools.h>
0006 #include <DD4hep/Printout.h>
0007 #include <DD4hep/Volumes.h>
0008 #include <XML/DocumentHandler.h>
0009 #include <XML/XMLElements.h>
0010 
0011 #include <iostream>
0012 
0013 namespace cms {
0014 
0015   DDDetector::DDDetector(const std::string& tag, const std::string& fileName, bool bigXML) : m_tag(tag) {
0016     //We do not want to use any previously created TGeoManager but we do want to reset after we are done.
0017     auto oldGeoManager = gGeoManager;
0018     gGeoManager = nullptr;
0019     auto resetManager = [oldGeoManager](TGeoManager*) { gGeoManager = oldGeoManager; };
0020     std::unique_ptr<TGeoManager, decltype(resetManager)> sentry(oldGeoManager, resetManager);
0021 
0022     std::string tagStr(m_tag);
0023     bool makePayload = false;
0024     if (tagStr == "make-payload") {
0025       makePayload = true;
0026       tagStr = "";
0027     }
0028     // Set DD4hep message level to ERROR. The default is INFO,
0029     // but those messages are not necessary for general use.
0030     dd4hep::setPrintLevel(dd4hep::ERROR);
0031 
0032     m_description = &dd4hep::Detector::getInstance(tagStr);
0033     m_description->addExtension<cms::DDVectorsMap>(&m_vectors);
0034     //only validate if using XML
0035     auto parsingContext =
0036         new cms::DDParsingContext(*m_description, makePayload, not bigXML);  // Removed at end of constructor
0037     m_description->addExtension<cms::DDParsingContext>(parsingContext);
0038     m_description->addExtension<dd4hep::PartSelectionMap>(&m_partsels);
0039     m_description->addExtension<dd4hep::SpecParRegistry>(&m_specpars);
0040     m_description->setStdConditions("NTP");
0041     edm::LogVerbatim("Geometry") << "DDDetector::ctor Setting DD4hep STD conditions to NTP";
0042     if (bigXML)
0043       processXML(fileName);
0044     else
0045       process(fileName);
0046     if (makePayload == false)  // context no longer needed if not making payloads
0047       m_description->removeExtension<cms::DDParsingContext>();
0048   }
0049 
0050   void DDDetector::process(const std::string& fileName) {
0051     std::string name("DD4hep_CompactLoader");
0052     const char* files[] = {fileName.c_str(), nullptr};
0053     m_description->apply(name.c_str(), 2, (char**)files);
0054   }
0055 
0056   void DDDetector::processXML(const std::string& xml) {
0057     edm::LogVerbatim("Geometry") << "DDDetector::processXML process string size " << xml.size() << " with max_size "
0058                                  << xml.max_size();
0059     edm::LogVerbatim("Geometry") << "DDDetector::processXML XML string contents = " << xml.substr(0, 800);
0060     std::string name("DD4hep_XMLProcessor");
0061     dd4hep::xml::DocumentHolder doc(dd4hep::xml::DocumentHandler().parse(xml.c_str(), xml.length()));
0062 
0063     char* args[] = {(char*)doc.root().ptr(), nullptr};
0064     m_description->apply(name.c_str(), 1, (char**)args);
0065   }
0066 
0067   dd4hep::Volume DDDetector::worldVolume() const {
0068     assert(m_description);
0069     return m_description->worldVolume();
0070   }
0071 
0072   dd4hep::DetElement DDDetector::world() const {
0073     assert(m_description);
0074     return m_description->world();
0075   }
0076 
0077   TGeoManager& DDDetector::manager() const {
0078     assert(m_description);
0079     return m_description->manager();
0080   }
0081 
0082   dd4hep::DetElement DDDetector::findElement(const std::string& path) const {
0083     assert(m_description);
0084     return dd4hep::detail::tools::findElement(*m_description, path);
0085   }
0086 }  // namespace cms