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