Jpp  19.0.0
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JPrintTreeScanner.cc
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1 
2 #include <string>
3 #include <iostream>
4 #include <iomanip>
5 #include <limits>
6 
8 #include "JDAQ/JDAQEvaluator.hh"
9 
11 #include "JSupport/JTreeScanner.hh"
12 #include "JSupport/JSupport.hh"
14 
15 #include "Jeep/JTimer.hh"
16 #include "Jeep/JParser.hh"
17 #include "Jeep/JMessage.hh"
18 
19 
20 /**
21  * \file
22  *
23  * Program to test ordered reading using JSUPPORT::JTreeScanner.
24  * \author mdejong
25  */
26 int main(int argc, char **argv)
27 {
28  using namespace std;
29  using namespace JPP;
30  using namespace KM3NETDAQ;
31 
32  JMultipleFileScanner<> inputFile;
33  JROOTClassSelector selector;
34  JLimit numberOfEvents;
35  int debug;
36 
37  try {
38 
39  JParser<> zap("Program to test ordered reading from a ROOT TTree.");
40 
41  zap['f'] = make_field(inputFile);
42  zap['C'] = make_field(selector) = getROOTClassSelection<JDAQTimesliceTypes_t>();
43  zap['n'] = make_field(numberOfEvents) = JLimit();
44  zap['d'] = make_field(debug) = 2;
45 
46  zap(argc, argv);
47  }
48  catch(const exception& error) {
49  FATAL(error.what() << endl);
50  }
51 
52 
54 
56 
57  JTreeScannerInterface<JDAQTimeslice>* ps = zmap[selector];
58 
59  JTimer timer;
60 
61  timer.start();
62 
63  ps->configure(inputFile, numberOfEvents);
64 
65  timer.stop();
66 
67  timer.print(cout, milli_t);
68 
69  while (ps->hasNext()) {
70 
71  JDAQTimeslice* p = ps->next();
72 
73  cout << *p << endl;
74  }
75 }
Utility class to parse command line options.
Definition: JParser.hh:1711
int main(int argc, char *argv[])
Definition: Main.cc:15
ROOT TTree parameter settings of various packages.
Auxiliary class to select ROOT class based on class name.
Auxiliary interface for direct access of elements in ROOT TChain.
Auxiliary class for a type holder.
Definition: JType.hh:19
Template definition for direct access of elements in ROOT TChain.
Auxiliary class for defining the range of iterations of objects.
Definition: JLimit.hh:41
milli
Definition: JScale.hh:30
#define make_field(A,...)
macro to convert parameter to JParserTemplateElement object
Definition: JParser.hh:2158
Auxiliary class for CPU timing and usage.
Definition: JTimer.hh:31
Data time slice.
General purpose messaging.
Auxiliary class to select JTreeScanner based on ROOT class name.
#define FATAL(A)
Definition: JMessage.hh:67
Utility class to parse command line options.
int debug
debug level
void start()
Start timer.
Definition: JTimer.hh:106