include/edm4hep/TrackCollection.h

0001 // AUTOMATICALLY GENERATED FILE - DO NOT EDIT
0002
0003 #ifndef EDM4HEP_TrackCollection_H
0004 #define EDM4HEP_TrackCollection_H
0005
0006 // datamodel specific includes
0007 #include "edm4hep/MutableTrack.h"
0008 #include "edm4hep/Track.h"
0009 #include "edm4hep/TrackCollectionData.h"
0010 #include "edm4hep/TrackObj.h"
0011
0012 // podio specific includes
0013 #include "podio/CollectionBase.h"
0014 #include "podio/ICollectionProvider.h"
0015
0016 #if defined(PODIO_JSON_OUTPUT) && !defined(__CLING__)
0017 #include "nlohmann/json_fwd.hpp"
0018 #endif
0019
0020 #include <algorithm>
0021 #include <array>
0022 #include <cstddef>
0023 #include <memory>
0024 #include <mutex>
0025 #include <ostream>
0026 #include <string_view>
0027 #include <vector>
0028
0029 namespace podio {
0030 struct RelationNames;
0031 }
0032
0033 namespace edm4hep {
0034
0035 class TrackCollectionIterator {
0036 public:
0037   TrackCollectionIterator(size_t index, const TrackObjPointerContainer* collection) :
0038       m_index(index), m_object(podio::utils::MaybeSharedPtr<TrackObj>{nullptr}), m_collection(collection) {
0039   }
0040
0041   TrackCollectionIterator(const TrackCollectionIterator&) = delete;
0042   TrackCollectionIterator& operator=(const TrackCollectionIterator&) = delete;
0043
0044   bool operator!=(const TrackCollectionIterator& x) const {
0045     return m_index != x.m_index; // TODO: may not be complete
0046   }
0047
0048   bool operator==(const TrackCollectionIterator& x) const {
0049     return m_index == x.m_index; // TODO: may not be complete
0050   }
0051
0052   Track operator*();
0053   Track* operator->();
0054   TrackCollectionIterator& operator++();
0055
0056 private:
0057   size_t m_index;
0058   Track m_object;
0059   const TrackObjPointerContainer* m_collection;
0060 };
0061
0062 class TrackMutableCollectionIterator {
0063 public:
0064   TrackMutableCollectionIterator(size_t index, const TrackObjPointerContainer* collection) :
0065       m_index(index), m_object(podio::utils::MaybeSharedPtr<TrackObj>{nullptr}), m_collection(collection) {
0066   }
0067
0068   TrackMutableCollectionIterator(const TrackMutableCollectionIterator&) = delete;
0069   TrackMutableCollectionIterator& operator=(const TrackMutableCollectionIterator&) = delete;
0070
0071   bool operator!=(const TrackMutableCollectionIterator& x) const {
0072     return m_index != x.m_index; // TODO: may not be complete
0073   }
0074
0075   bool operator==(const TrackMutableCollectionIterator& x) const {
0076     return m_index == x.m_index; // TODO: may not be complete
0077   }
0078
0079   MutableTrack operator*();
0080   MutableTrack* operator->();
0081   TrackMutableCollectionIterator& operator++();
0082
0083 private:
0084   size_t m_index;
0085   MutableTrack m_object;
0086   const TrackObjPointerContainer* m_collection;
0087 };
0088
0089 /**
0090 A Collection is identified by an ID.
0091 */
0092 class TrackCollection : public podio::CollectionBase {
0093 public:
0094   using value_type = Track;
0095   using const_iterator = TrackCollectionIterator;
0096   using iterator = TrackMutableCollectionIterator;
0097   using difference_type = ptrdiff_t;
0098   using size_type = size_t;
0099
0100   TrackCollection();
0101   TrackCollection(TrackCollectionData&& data, bool isSubsetColl);
0102   // This is a move-only type
0103   TrackCollection(const TrackCollection&) = delete;
0104   TrackCollection& operator=(const TrackCollection&) = delete;
0105   TrackCollection(TrackCollection&&) = default;
0106   TrackCollection& operator=(TrackCollection&&) = default;
0107
0108   //  TrackCollection(TrackVector* data, uint32_t collectionID);
0109   ~TrackCollection();
0110
0111   constexpr static auto typeName = "edm4hep::TrackCollection";
0112   constexpr static auto valueTypeName = "edm4hep::Track";
0113   constexpr static auto dataTypeName = "edm4hep::TrackData";
0114
0115   void clear() final;
0116
0117   /// Print this collection to the passed stream
0118   void print(std::ostream& os = std::cout, bool flush = true) const final;
0119
0120   /// operator to allow pointer like calling of members a la LCIO
0121   TrackCollection* operator->() {
0122     return static_cast<TrackCollection*>(this);
0123   }
0124
0125   /// Append a new object to the collection, and return this object.
0126   MutableTrack create();
0127
0128   /// Append a new object to the collection, and return this object.
0129   /// Initialized with the parameters given
0130   template <typename... Args>
0131   MutableTrack create(Args&&... args);
0132
0133   /// number of elements in the collection
0134   std::size_t size() const final;
0135
0136   /// maximal number of elements in the collection
0137   std::size_t max_size() const final;
0138
0139   /// Is the collection empty
0140   bool empty() const final;
0141
0142   /// fully qualified type name
0143   const std::string_view getTypeName() const final {
0144     return typeName;
0145   }
0146   /// fully qualified type name of elements - with namespace
0147   const std::string_view getValueTypeName() const final {
0148     return valueTypeName;
0149   }
0150   /// fully qualified type name of stored POD elements - with namespace
0151   const std::string_view getDataTypeName() const final {
0152     return dataTypeName;
0153   }
0154   /// schema version
0155   podio::SchemaVersionT getSchemaVersion() const final;
0156
0157   bool isSubsetCollection() const final {
0158     return m_isSubsetColl;
0159   }
0160
0161   void setSubsetCollection(bool setSubset = true) final;
0162
0163   /// Returns the const object of given index
0164   Track operator[](std::size_t index) const;
0165   /// Returns the object of a given index
0166   MutableTrack operator[](std::size_t index);
0167   /// Returns the const object of given index
0168   Track at(std::size_t index) const;
0169   /// Returns the object of given index
0170   MutableTrack at(std::size_t index);
0171
0172   /// Append object to the collection
0173   void push_back(const MutableTrack& object);
0174   /// Append an object to the (subset) collection
0175   void push_back(const Track& object);
0176
0177   void prepareForWrite() const final;
0178   void prepareAfterRead() final;
0179   bool setReferences(const podio::ICollectionProvider* collectionProvider) final;
0180
0181   /// Get the collection buffers for this collection
0182   podio::CollectionWriteBuffers getBuffers() final;
0183
0184   void setID(uint32_t ID) final {
0185     m_collectionID = ID;
0186     if (!m_isSubsetColl) {
0187       std::for_each(m_storage.entries.begin(), m_storage.entries.end(), [ID](TrackObj* obj) {
0188         obj->id = {obj->id.index, static_cast<uint32_t>(ID)};
0189       });
0190     }
0191     m_isValid = true;
0192   }
0193
0194   uint32_t getID() const final {
0195     return m_collectionID;
0196   }
0197
0198   bool isValid() const final {
0199     return m_isValid;
0200   }
0201
0202   size_t getDatamodelRegistryIndex() const final;
0203
0204   // support for the iterator protocol
0205   iterator begin() {
0206     return iterator(0, &m_storage.entries);
0207   }
0208   const_iterator begin() const {
0209     return const_iterator(0, &m_storage.entries);
0210   }
0211   const_iterator cbegin() const {
0212     return begin();
0213   }
0214   iterator end() {
0215     return iterator(m_storage.entries.size(), &m_storage.entries);
0216   }
0217   const_iterator end() const {
0218     return const_iterator(m_storage.entries.size(), &m_storage.entries);
0219   }
0220   const_iterator cend() const {
0221     return end();
0222   }
0223
0224   std::vector<std::int32_t> type(const size_t nElem = 0) const;
0225   std::vector<float> chi2(const size_t nElem = 0) const;
0226   std::vector<std::int32_t> ndf(const size_t nElem = 0) const;
0227   std::vector<float> dEdx(const size_t nElem = 0) const;
0228   std::vector<float> dEdxError(const size_t nElem = 0) const;
0229   std::vector<float> radiusOfInnermostHit(const size_t nElem = 0) const;
0230
0231 private:
0232   // For setReferences, we need to give our own CollectionData access to our
0233   // private entries. Otherwise we would need to expose a public member function
0234   // that gives access to the Obj* which is definitely not what we want
0235   friend class TrackCollectionData;
0236
0237   bool m_isValid{false};
0238   mutable bool m_isPrepared{false};
0239   bool m_isSubsetColl{false};
0240   uint32_t m_collectionID{0};
0241   mutable std::unique_ptr<std::mutex> m_storageMtx{nullptr};
0242   mutable TrackCollectionData m_storage{};
0243 };
0244
0245 std::ostream& operator<<(std::ostream& o, const TrackCollection& v);
0246
0247 template <typename... Args>
0248 MutableTrack TrackCollection::create(Args&&... args) {
0249   if (m_isSubsetColl) {
0250     throw std::logic_error("Cannot create new elements on a subset collection");
0251   }
0252   const int size = m_storage.entries.size();
0253   auto obj = new TrackObj({size, m_collectionID}, {std::forward<Args>(args)...});
0254   m_storage.entries.push_back(obj);
0255
0256   // Need to initialize the relation vectors manually for the {ObjectID, TrackData} constructor
0257   obj->m_trackerHits = new std::vector<edm4hep::TrackerHit>();
0258   obj->m_tracks = new std::vector<edm4hep::Track>();
0259   obj->m_subdetectorHitNumbers = new std::vector<std::int32_t>();
0260   obj->m_trackStates = new std::vector<edm4hep::TrackState>();
0261   obj->m_dxQuantities = new std::vector<edm4hep::Quantity>();
0262   m_storage.createRelations(obj);
0263   return MutableTrack(podio::utils::MaybeSharedPtr(obj));
0264 }
0265
0266 #if defined(PODIO_JSON_OUTPUT) && !defined(__CLING__)
0267 void to_json(nlohmann::json& j, const TrackCollection& collection);
0268 #endif
0269
0270 } // namespace edm4hep
0271
0272 #endif