1 | //STARTHEADER |
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2 | // $Id: LimitedWarning.cc 859 2012-11-28 01:49:23Z pavel $ |
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3 | // |
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4 | // Copyright (c) 2005-2011, Matteo Cacciari, Gavin P. Salam and Gregory Soyez |
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5 | // |
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6 | //---------------------------------------------------------------------- |
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7 | // This file is part of FastJet. |
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8 | // |
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9 | // FastJet is free software; you can redistribute it and/or modify |
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10 | // it under the terms of the GNU General Public License as published by |
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11 | // the Free Software Foundation; either version 2 of the License, or |
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12 | // (at your option) any later version. |
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13 | // |
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14 | // The algorithms that underlie FastJet have required considerable |
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15 | // development and are described in hep-ph/0512210. If you use |
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16 | // FastJet as part of work towards a scientific publication, please |
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17 | // include a citation to the FastJet paper. |
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18 | // |
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19 | // FastJet is distributed in the hope that it will be useful, |
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20 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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21 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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22 | // GNU General Public License for more details. |
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23 | // |
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24 | // You should have received a copy of the GNU General Public License |
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25 | // along with FastJet. If not, see <http://www.gnu.org/licenses/>. |
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26 | //---------------------------------------------------------------------- |
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27 | //ENDHEADER |
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28 | |
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29 | #include "fastjet/LimitedWarning.hh" |
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30 | #include <sstream> |
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31 | #include <limits> |
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32 | |
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33 | using namespace std; |
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34 | |
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35 | FASTJET_BEGIN_NAMESPACE |
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36 | |
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37 | ostream * LimitedWarning::_default_ostr = &cerr; |
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38 | std::list< LimitedWarning::Summary > LimitedWarning::_global_warnings_summary; |
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39 | int LimitedWarning::_max_warn_default = 5; |
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40 | |
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41 | |
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42 | /// output a warning to ostr |
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43 | void LimitedWarning::warn(const std::string & warning) { |
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44 | warn(warning, _default_ostr); |
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45 | } |
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46 | |
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47 | void LimitedWarning::warn(const std::string & warning, std::ostream * ostr) { |
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48 | if (_this_warning_summary == 0) { |
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49 | // prepare the information for the summary |
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50 | _global_warnings_summary.push_back(Summary(warning, 0)); |
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51 | _this_warning_summary = & (_global_warnings_summary.back()); |
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52 | } |
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53 | if (_n_warn_so_far < _max_warn) { |
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54 | // prepare the warning within a string stream |
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55 | ostringstream warnstr; |
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56 | warnstr << "WARNING: "; |
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57 | warnstr << warning; |
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58 | _n_warn_so_far++; |
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59 | if (_n_warn_so_far == _max_warn) warnstr << " (LAST SUCH WARNING)"; |
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60 | warnstr << std::endl; |
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61 | // arrange for the whole warning to be output in one go (that way |
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62 | // user can easily insert their own printout, e.g. event number |
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63 | // before the warning string). |
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64 | if (ostr) { |
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65 | (*ostr) << warnstr.str(); |
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66 | ostr->flush(); // get something written to file even if the program aborts |
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67 | } |
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68 | } |
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69 | |
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70 | // maintain the count, but do not allow overflow |
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71 | if (_this_warning_summary->second < numeric_limits<unsigned>::max()) { |
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72 | _this_warning_summary->second++; |
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73 | } |
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74 | } |
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75 | |
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76 | //---------------------------------------------------------------------- |
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77 | string LimitedWarning::summary() { |
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78 | ostringstream str; |
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79 | for (list<Summary>::const_iterator it = _global_warnings_summary.begin(); |
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80 | it != _global_warnings_summary.end(); it++) { |
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81 | str << it->second << " times: " << it->first << endl; |
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82 | } |
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83 | return str.str(); |
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84 | } |
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85 | |
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86 | FASTJET_END_NAMESPACE |
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