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

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2018 Icinga Development Team (https://icinga.com/)      *
   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/checkable.hpp"
  21 #include "icinga/checkable-ti.cpp"
  22 #include "icinga/host.hpp"
  23 #include "icinga/service.hpp"
  24 #include "base/objectlock.hpp"
  25 #include "base/utility.hpp"
  26 #include "base/exception.hpp"
  27
  28 using namespace icinga;
  29
  30 REGISTER_TYPE_WITH_PROTOTYPE(Checkable, Checkable::GetPrototype());
  31 INITIALIZE_ONCE(&Checkable::StaticInitialize);
  32
  33 boost::signals2::signal<void (const Checkable::Ptr&, const String&, const String&, AcknowledgementType, bool, bool, double, const MessageOrigin::Ptr&)> Checkable::OnAcknowledgementSet;
  34 boost::signals2::signal<void (const Checkable::Ptr&, const MessageOrigin::Ptr&)> Checkable::OnAcknowledgementCleared;
  35
  36 void Checkable::StaticInitialize()
  37 {
  38         /* fixed downtime start */
  39         Downtime::OnDowntimeStarted.connect(std::bind(&Checkable::NotifyFixedDowntimeStart, _1));
  40         /* flexible downtime start */
  41         Downtime::OnDowntimeTriggered.connect(std::bind(&Checkable::NotifyFlexibleDowntimeStart, _1));
  42         /* fixed/flexible downtime end */
  43         Downtime::OnDowntimeRemoved.connect(std::bind(&Checkable::NotifyDowntimeEnd, _1));
  44 }
  45
  46 Checkable::Checkable()
  47 {
  48         SetSchedulingOffset(Utility::Random());
  49 }
  50
  51 void Checkable::OnAllConfigLoaded()
  52 {
  53         ObjectImpl<Checkable>::OnAllConfigLoaded();
  54
  55         Endpoint::Ptr endpoint = GetCommandEndpoint();
  56
  57         if (endpoint) {
  58                 Zone::Ptr checkableZone = static_pointer_cast<Zone>(GetZone());
  59
  60                 if (!checkableZone)
  61                         checkableZone = Zone::GetLocalZone();
  62
  63                 Zone::Ptr cmdZone = endpoint->GetZone();
  64
  65                 if (checkableZone && cmdZone != checkableZone && cmdZone->GetParent() != checkableZone) {
  66                         BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
  67                                 "Command endpoint must be in zone '" + checkableZone->GetName() + "' or in a direct child zone thereof."));
  68                 }
  69         }
  70 }
  71
  72 void Checkable::Start(bool runtimeCreated)
  73 {
  74         double now = Utility::GetTime();
  75
  76         if (GetNextCheck() < now + 60) {
  77                 double delta = std::min(GetCheckInterval(), 60.0);
  78                 delta *= (double)std::rand() / RAND_MAX;
  79                 SetNextCheck(now + delta);
  80         }
  81
  82         ObjectImpl<Checkable>::Start(runtimeCreated);
  83 }
  84
  85 void Checkable::AddGroup(const String& name)
  86 {
  87         boost::mutex::scoped_lock lock(m_CheckableMutex);
  88
  89         Array::Ptr groups;
  90         auto *host = dynamic_cast<Host *>(this);
  91
  92         if (host)
  93                 groups = host->GetGroups();
  94         else
  95                 groups = static_cast<Service *>(this)->GetGroups();
  96
  97         if (groups && groups->Contains(name))
  98                 return;
  99
 100         if (!groups)
 101                 groups = new Array();
 102
 103         groups->Add(name);
 104 }
 105
 106 AcknowledgementType Checkable::GetAcknowledgement()
 107 {
 108         auto avalue = static_cast<AcknowledgementType>(GetAcknowledgementRaw());
 109
 110         if (avalue != AcknowledgementNone) {
 111                 double expiry = GetAcknowledgementExpiry();
 112
 113                 if (expiry != 0 && expiry < Utility::GetTime()) {
 114                         avalue = AcknowledgementNone;
 115                         ClearAcknowledgement();
 116                 }
 117         }
 118
 119         return avalue;
 120 }
 121
 122 bool Checkable::IsAcknowledged() const
 123 {
 124         return const_cast<Checkable *>(this)->GetAcknowledgement() != AcknowledgementNone;
 125 }
 126
 127 void Checkable::AcknowledgeProblem(const String& author, const String& comment, AcknowledgementType type, bool notify, bool persistent, double expiry, const MessageOrigin::Ptr& origin)
 128 {
 129         SetAcknowledgementRaw(type);
 130         SetAcknowledgementExpiry(expiry);
 131
 132         if (notify && !IsPaused())
 133                 OnNotificationsRequested(this, NotificationAcknowledgement, GetLastCheckResult(), author, comment, nullptr);
 134
 135         OnAcknowledgementSet(this, author, comment, type, notify, persistent, expiry, origin);
 136 }
 137
 138 void Checkable::ClearAcknowledgement(const MessageOrigin::Ptr& origin)
 139 {
 140         SetAcknowledgementRaw(AcknowledgementNone);
 141         SetAcknowledgementExpiry(0);
 142
 143         OnAcknowledgementCleared(this, origin);
 144 }
 145
 146 Endpoint::Ptr Checkable::GetCommandEndpoint() const
 147 {
 148         return Endpoint::GetByName(GetCommandEndpointRaw());
 149 }
 150
 151 int Checkable::GetSeverity() const
 152 {
 153         /* overridden in Host/Service class. */
 154         return 0;
 155 }
 156
 157 void Checkable::NotifyFixedDowntimeStart(const Downtime::Ptr& downtime)
 158 {
 159         if (!downtime->GetFixed())
 160                 return;
 161
 162         NotifyDowntimeInternal(downtime);
 163 }
 164
 165 void Checkable::NotifyFlexibleDowntimeStart(const Downtime::Ptr& downtime)
 166 {
 167         if (downtime->GetFixed())
 168                 return;
 169
 170         NotifyDowntimeInternal(downtime);
 171 }
 172
 173 void Checkable::NotifyDowntimeInternal(const Downtime::Ptr& downtime)
 174 {
 175         Checkable::Ptr checkable = downtime->GetCheckable();
 176
 177         if (!checkable->IsPaused())
 178                 OnNotificationsRequested(checkable, NotificationDowntimeStart, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
 179 }
 180
 181 void Checkable::NotifyDowntimeEnd(const Downtime::Ptr& downtime)
 182 {
 183         /* don't send notifications for flexible downtimes which never triggered */
 184         if (!downtime->GetFixed() && !downtime->IsTriggered())
 185                 return;
 186
 187         Checkable::Ptr checkable = downtime->GetCheckable();
 188
 189         if (!checkable->IsPaused())
 190                 OnNotificationsRequested(checkable, NotificationDowntimeEnd, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
 191 }
 192
 193 void Checkable::ValidateCheckInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
 194 {
 195         ObjectImpl<Checkable>::ValidateCheckInterval(lvalue, utils);
 196
 197         if (lvalue() <= 0)
 198                 BOOST_THROW_EXCEPTION(ValidationError(this, { "check_interval" }, "Interval must be greater than 0."));
 199 }
 200
 201 void Checkable::ValidateMaxCheckAttempts(const Lazy<int>& lvalue, const ValidationUtils& utils)
 202 {
 203         ObjectImpl<Checkable>::ValidateMaxCheckAttempts(lvalue, utils);
 204
 205         if (lvalue() <= 0)
 206                 BOOST_THROW_EXCEPTION(ValidationError(this, { "max_check_attempts" }, "Value must be greater than 0."));
 207 }