granicus.if.org Git - icinga2/blob - lib/icinga/notification-apply.cpp

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-present Icinga Development Team (http://www.icinga.org) *
   4  *                                                                            *
   5  * This program is free software; you can redistribute it and/or              *
   6  * modify it under the terms of the GNU General Public License                *
   7  * as published by the Free Software Foundation; either version 2             *
   8  * of the License, or (at your option) any later version.                     *
   9  *                                                                            *
  10  * This program is distributed in the hope that it will be useful,            *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
  14  *                                                                            *
  15  * You should have received a copy of the GNU General Public License          *
  16  * along with this program; if not, write to the Free Software Foundation     *
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
  18  ******************************************************************************/
  19
  20 #include "icinga/service.h"
  21 #include "config/configitembuilder.h"
  22 #include "base/initialize.h"
  23 #include "base/dynamictype.h"
  24 #include "base/convert.h"
  25 #include "base/logger_fwd.h"
  26 #include "base/context.h"
  27 #include <boost/foreach.hpp>
  28
  29 using namespace icinga;
  30
  31 INITIALIZE_ONCE(&Notification::RegisterApplyRuleHandler);
  32
  33 void Notification::RegisterApplyRuleHandler(void)
  34 {
  35         std::vector<String> targets;
  36         targets.push_back("Host");
  37         targets.push_back("Service");
  38         ApplyRule::RegisterType("Notification", targets, &Notification::EvaluateApplyRules);
  39 }
  40
  41 bool Notification::EvaluateApplyRule(const Checkable::Ptr& checkable, const ApplyRule& rule)
  42 {
  43         DebugInfo di = rule.GetDebugInfo();
  44
  45         std::ostringstream msgbuf;
  46         msgbuf << "Evaluating 'apply' rule (" << di << ")";
  47         CONTEXT(msgbuf.str());
  48
  49         Host::Ptr host;
  50         Service::Ptr service;
  51         tie(host, service) = GetHostService(checkable);
  52
  53         Dictionary::Ptr locals = make_shared<Dictionary>();
  54         locals->Set("host", host);
  55         if (service)
  56                 locals->Set("service", service);
  57
  58         if (!rule.EvaluateFilter(locals))
  59                 return false;
  60
  61         std::ostringstream msgbuf2;
  62         msgbuf2 << "Applying notification '" << rule.GetName() << "' to object '" << checkable->GetName() << "' for rule " << di;
  63         Log(LogDebug, "icinga", msgbuf2.str());
  64
  65         ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
  66         builder->SetType("Notification");
  67         builder->SetName(rule.GetName());
  68         builder->SetScope(rule.GetScope());
  69
  70         builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
  71             make_shared<AExpression>(&AExpression::OpLiteral, "host_name", di),
  72             make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(), di),
  73             di));
  74
  75         if (service) {
  76                 builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
  77                     make_shared<AExpression>(&AExpression::OpLiteral, "service_name", di),
  78                     make_shared<AExpression>(&AExpression::OpLiteral, service->GetShortName(), di),
  79                     di));
  80         }
  81
  82         builder->AddExpression(rule.GetExpression());
  83
  84         ConfigItem::Ptr notificationItem = builder->Compile();
  85         notificationItem->Register();
  86         DynamicObject::Ptr dobj = notificationItem->Commit();
  87         dobj->OnConfigLoaded();
  88
  89         return true;
  90 }
  91
  92 void Notification::EvaluateApplyRules(const std::vector<ApplyRule>& rules)
  93 {
  94         int apply_count = 0;
  95
  96         BOOST_FOREACH(const ApplyRule& rule, rules) {
  97                 if (rule.GetTargetType() == "Host") {
  98                         apply_count = 0;
  99
 100                         BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjects<Host>()) {
 101                                 CONTEXT("Evaluating 'apply' rules for host '" + host->GetName() + "'");
 102
 103                                 if (EvaluateApplyRule(host, rule))
 104                                         apply_count++;
 105                         }
 106
 107                         if (apply_count == 0)
 108                                 Log(LogWarning, "icinga", "Apply rule '" + rule.GetName() + "' for host does not match anywhere!");
 109
 110                 } else if (rule.GetTargetType() == "Service") {
 111                         apply_count = 0;
 112
 113                         BOOST_FOREACH(const Service::Ptr& service, DynamicType::GetObjects<Service>()) {
 114                                 CONTEXT("Evaluating 'apply' rules for Service '" + service->GetName() + "'");
 115
 116                                 if(EvaluateApplyRule(service, rule))
 117                                         apply_count++;
 118                         }
 119
 120                         if (apply_count == 0)
 121                                 Log(LogWarning, "icinga", "Apply rule '" + rule.GetName() + "' for service does not match anywhere!");
 122
 123                 } else {
 124                         Log(LogWarning, "icinga", "Wrong target type for apply rule '" + rule.GetName() + "'!");
 125                 }
 126         }
 127 }