HepMC3 event record library
ReaderLHEF.h
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1 // -*- C++ -*-
2 //
3 // This file is part of HepMC
4 // Copyright (C) 2014-2021 The HepMC collaboration (see AUTHORS for details)
5 //
6 #ifndef HEPMC3_READERLHEF_H
7 #define HEPMC3_READERLHEF_H
8 /**
9  * @file ReaderLHEF.h
10  * @brief Definition of \b class ReaderLHEF
11  *
12  * @class HepMC3::ReaderLHEF
13  * @brief GenEvent I/O parsing and serialization for LHEF files
14  *
15  *
16  * @ingroup IO
17  *
18  */
19 #include "HepMC3/Reader.h"
20 #include "HepMC3/GenEvent.h"
21 #include <deque>
22 #include <string>
23 #include <fstream>
24 #include <istream>
25 #include "HepMC3/LHEFAttributes.h"
26 #include "HepMC3/GenEvent.h"
27 #include "HepMC3/GenParticle.h"
28 #include "HepMC3/GenVertex.h"
29 #include <iomanip>
30 
31 
32 namespace HepMC3
33 {
34 class ReaderLHEF : public Reader
35 {
36 public:
37  /// The ctor to read from stream
38  ReaderLHEF(std::istream &);
39  /** @brief Constructor */
40  ReaderLHEF(const std::string& filename);
41  /// The ctor to read from temp stream
42  ReaderLHEF(std::shared_ptr<std::istream> s_stream);
43  /// @brief skip events
44  bool skip(const int) override;
45  /** @brief Reading event */
46  bool read_event(GenEvent& ev) override;
47  /** @brief Close */
48  void close() override;
49  /** @brief State */
50  bool failed() override;
51  /** @brief Destructor */
52  ~ReaderLHEF() ;
53 private:
54  void init(); ///< Init helper
55  std::shared_ptr<std::istream> m_shared_stream; ///< Holds temporary stream
56  std::shared_ptr<LHEF::Reader> m_reader; ///< The actual reader
57  std::shared_ptr<HEPRUPAttribute> m_hepr; ///< Holder of attributes
58  int m_neve; ///< Event counter
59  bool m_failed; ///< State of reader
60  std::deque<GenEvent> m_storage; ///<storage used for subevents.
61 };
62 }
63 #endif
Definition of class GenEvent.
Definition of class GenParticle.
Definition of class GenVertex.
Definition of class HEPRUPAttribute and class HEPEUAttribute.
Definition of interface Reader.
Stores event-related information.
Definition: GenEvent.h:41
GenEvent I/O parsing and serialization for LHEF files.
Definition: ReaderLHEF.h:35
~ReaderLHEF()
Destructor.
Definition: ReaderLHEF.cc:102
void init()
Init helper.
Definition: ReaderLHEF.cc:44
bool failed() override
State.
Definition: ReaderLHEF.cc:187
bool read_event(GenEvent &ev) override
Reading event.
Definition: ReaderLHEF.cc:104
bool skip(const int) override
skip events
Definition: ReaderLHEF.cc:32
std::shared_ptr< HEPRUPAttribute > m_hepr
Holder of attributes.
Definition: ReaderLHEF.h:57
void close() override
Close.
Definition: ReaderLHEF.cc:190
bool m_failed
State of reader.
Definition: ReaderLHEF.h:59
std::deque< GenEvent > m_storage
storage used for subevents.
Definition: ReaderLHEF.h:60
ReaderLHEF(std::istream &)
The ctor to read from stream.
Definition: ReaderLHEF.cc:19
std::shared_ptr< std::istream > m_shared_stream
Holds temporary stream.
Definition: ReaderLHEF.h:55
std::shared_ptr< LHEF::Reader > m_reader
The actual reader.
Definition: ReaderLHEF.h:56
int m_neve
Event counter.
Definition: ReaderLHEF.h:58
Base class for all I/O readers.
Definition: Reader.h:25
HepMC3 main namespace.