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

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2014 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/notification.hpp"
  21 #include "icinga/service.hpp"
  22 #include "config/configitembuilder.hpp"
  23 #include "config/applyrule.hpp"
  24 #include "base/initialize.hpp"
  25 #include "base/dynamictype.hpp"
  26 #include "base/logger_fwd.hpp"
  27 #include "base/context.hpp"
  28 #include "base/workqueue.hpp"
  29 #include <boost/foreach.hpp>
  30
  31 using namespace icinga;
  32
  33 INITIALIZE_ONCE(&Notification::RegisterApplyRuleHandler);
  34
  35 void Notification::RegisterApplyRuleHandler(void)
  36 {
  37         std::vector<String> targets;
  38         targets.push_back("Host");
  39         targets.push_back("Service");
  40         ApplyRule::RegisterType("Notification", targets, &Notification::EvaluateApplyRules);
  41 }
  42
  43 bool Notification::EvaluateApplyRuleOne(const Checkable::Ptr& checkable, const ApplyRule& rule)
  44 {
  45         DebugInfo di = rule.GetDebugInfo();
  46
  47         std::ostringstream msgbuf;
  48         msgbuf << "Evaluating 'apply' rule (" << di << ")";
  49         CONTEXT(msgbuf.str());
  50
  51         Host::Ptr host;
  52         Service::Ptr service;
  53         tie(host, service) = GetHostService(checkable);
  54
  55         Dictionary::Ptr locals = make_shared<Dictionary>();
  56         locals->Set("host", host);
  57         if (service)
  58                 locals->Set("service", service);
  59
  60         if (!rule.EvaluateFilter(locals))
  61                 return false;
  62
  63         std::ostringstream msgbuf2;
  64         msgbuf2 << "Applying notification '" << rule.GetName() << "' to object '" << checkable->GetName() << "' for rule " << di;
  65         Log(LogDebug, "Notification", msgbuf2.str());
  66
  67         ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
  68         builder->SetType("Notification");
  69         builder->SetName(rule.GetName());
  70         builder->SetScope(rule.GetScope());
  71
  72         builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
  73             make_shared<AExpression>(&AExpression::OpLiteral, "host_name", di),
  74             make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(), di),
  75             di));
  76
  77         if (service) {
  78                 builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
  79                     make_shared<AExpression>(&AExpression::OpLiteral, "service_name", di),
  80                     make_shared<AExpression>(&AExpression::OpLiteral, service->GetShortName(), di),
  81                     di));
  82         }
  83
  84         String zone = checkable->GetZone();
  85
  86         if (!zone.IsEmpty()) {
  87                 builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
  88                     make_shared<AExpression>(&AExpression::OpLiteral, "zone", di),
  89                     make_shared<AExpression>(&AExpression::OpLiteral, zone, di),
  90                     di));
  91         }
  92
  93         builder->AddExpression(rule.GetExpression());
  94
  95         ConfigItem::Ptr notificationItem = builder->Compile();
  96         notificationItem->Register();
  97         DynamicObject::Ptr dobj = notificationItem->Commit();
  98         dobj->OnConfigLoaded();
  99
 100         return true;
 101 }
 102
 103 void Notification::EvaluateApplyRule(const ApplyRule& rule)
 104 {
 105         int apply_count = 0;
 106
 107         if (rule.GetTargetType() == "Host") {
 108                 apply_count = 0;
 109
 110                 BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjects<Host>()) {
 111                         CONTEXT("Evaluating 'apply' rules for host '" + host->GetName() + "'");
 112
 113                         if (EvaluateApplyRuleOne(host, rule))
 114                                 apply_count++;
 115                 }
 116
 117                 if (apply_count == 0)
 118                         Log(LogWarning, "Notification", "Apply rule '" + rule.GetName() + "' for host does not match anywhere!");
 119
 120         } else if (rule.GetTargetType() == "Service") {
 121                 apply_count = 0;
 122
 123                 BOOST_FOREACH(const Service::Ptr& service, DynamicType::GetObjects<Service>()) {
 124                         CONTEXT("Evaluating 'apply' rules for Service '" + service->GetName() + "'");
 125
 126                         if (EvaluateApplyRuleOne(service, rule))
 127                                 apply_count++;
 128                 }
 129
 130                 if (apply_count == 0)
 131                         Log(LogWarning, "Notification", "Apply rule '" + rule.GetName() + "' for service does not match anywhere!");
 132
 133         } else {
 134                 Log(LogWarning, "Notification", "Wrong target type for apply rule '" + rule.GetName() + "'!");
 135         }
 136 }
 137 void Notification::EvaluateApplyRules(const std::vector<ApplyRule>& rules)
 138 {
 139         ParallelWorkQueue upq;
 140
 141         BOOST_FOREACH(const ApplyRule& rule, rules) {
 142                 upq.Enqueue(boost::bind(&Notification::EvaluateApplyRule, boost::cref(rule)));
 143         }
 144
 145         upq.Join();
 146 }