examples/PodioDatamodel/EventInfoCollection.h

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