JPrintMeta.cc

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#include <string>
#include <iostream>
#include <iomanip>

#include "TROOT.h"
#include "TFile.h"
#include "TNamed.h"
#include "TKey.h"
#include "TRegexp.h"

#include "JLang/JLangToolkit.hh"
#include "JLang/JObjectMultiplexer.hh"
#include "Jeep/JeepToolkit.hh"

#include "JSupport/JMultipleFileScanner.hh"
#include "JSupport/JMeta.hh"
#include "JSupport/JSupport.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

namespace {

  /**
   * Print options.
   */
  static const char* plain_t   =  "plain";       //!< plain text
  static const char* single_t  =  "single";      //!< single line text
  static const char* json_t    =  "JSON";        //!< JSON compatible format
}

/**
 * \file
 * Auxiliary program to print Jpp meta data.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  string         inputFile;
  JLimit_t       numberOfEvents;
  string         application;
  string         option;
  int            debug;

  try { 

    JParser<> zap("Auxiliary program to print Jpp meta data.");
    
    zap['f'] = make_field(inputFile);
    zap['n'] = make_field(numberOfEvents)  = JLimit::max();
    zap['A'] = make_field(application)     = "";
    zap['O'] = make_field(option)          = plain_t, single_t, json_t;
    zap['d'] = make_field(debug)           = 1;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }
  
  cout.tie(&cerr);

  if (application != "") {

    TFile* in = TFile::Open(inputFile.c_str(), "exists");

    if (in != NULL && in->IsOpen()) {

      const TRegexp regexp(application.c_str());

      TIter iter(in->GetListOfKeys());
      
      for (TKey* key; (key = (TKey*) iter.Next()) != NULL; ) {
        
        const TString tag(key->GetName());
        
        if (tag.Index(regexp) != -1) {
          
          TNamed* named = dynamic_cast<TNamed*>(key->ReadObj());
          
          if (named != NULL) {
            cout << named->GetName() << "[" << key->GetCycle() << "] " << named->GetTitle() << endl;
          }
        }
      }
      
      in->Close();
      
    } else {

      ERROR("Error opening file: " << inputFile << endl);
    }

  } else {

    JMultipleFileScanner<JMetaTypes_t> in(inputFile, numberOfEvents);

    JObjectMultiplexer<JMetaTypes_t> abc(in);

    if (option == single_t) {    
      cout << "[" << endl;
    }

    while (abc.hasNext()) {

      JMeta* meta = abc.next();

      if        (option == plain_t) {

        cout << *meta << endl;

      } else if (option == single_t || 
                 option == json_t) {

        cout << "[" << double_quote((*meta)[application_t]) << ", {" << endl;

        for (JMeta::const_iterator i = meta->begin(); i != meta->end(); ++i) {
          if (i->first != application_t) {
            cout << double_quote(i->first) << " : " << double_quote(i->second) << (i->first != meta->rbegin()->first ? "," : "") << endl;
          }
        }
        cout << "}]";

        if (abc.hasNext()) {
          cout << ",";
        }

        cout << endl;
      }
    }

    if (option == single_t) {    
      cout << "]" << endl;
    }
  }
}