livestatus/src/ColumnFilter.cc

   1 // +------------------------------------------------------------------+
   2 // |             ____ _               _        __  __ _  __           |
   3 // |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   4 // |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   5 // |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   6 // |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   7 // |                                                                  |
   8 // | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
   9 // +------------------------------------------------------------------+
  10 //
  11 // This file is part of Check_MK.
  12 // The official homepage is at http://mathias-kettner.de/check_mk.
  13 //
  14 // check_mk is free software;  you can redistribute it and/or modify it
  15 // under the  terms of the  GNU General Public License  as published by
  16 // the Free Software Foundation in version 2.  check_mk is  distributed
  17 // in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  18 // out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  19 // PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  20 // tails. You should have  received  a copy of the  GNU  General Public
  21 // License along with GNU Make; see the file  COPYING.  If  not,  write
  22 // to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  23 // Boston, MA 02110-1301 USA.
  24
  25 #include "ColumnFilter.h"
  26 #include "AndingFilter.h"
  27
  28 std::unique_ptr<Filter> ColumnFilter::partialFilter(
  29     std::function<bool(const Column &)> predicate) const {
  30     return predicate(_column) ? copy() : AndingFilter::make(kind(), Filters());
  31 }
  32
  33 bool ColumnFilter::is_tautology() const { return false; }
  34
  35 bool ColumnFilter::is_contradiction() const { return false; }
  36
  37 Filters ColumnFilter::disjuncts() const {
  38     Filters filters;
  39     filters.push_back(copy());
  40     return filters;
  41 }
  42
  43 Filters ColumnFilter::conjuncts() const {
  44     Filters filters;
  45     filters.push_back(copy());
  46     return filters;
  47 }
  48
  49 std::ostream &ColumnFilter::print(std::ostream &os) const {
  50     return os << "Filter: " << columnName() << " " << oper() << " " << value();
  51 }