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

   1 /* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
   2
   3 #include "icinga/checkable.hpp"
   4 #include "icinga/checkable-ti.cpp"
   5 #include "icinga/host.hpp"
   6 #include "icinga/service.hpp"
   7 #include "base/objectlock.hpp"
   8 #include "base/utility.hpp"
   9 #include "base/exception.hpp"
  10 #include "base/timer.hpp"
  11 #include <boost/thread/once.hpp>
  12
  13 using namespace icinga;
  14
  15 REGISTER_TYPE_WITH_PROTOTYPE(Checkable, Checkable::GetPrototype());
  16 INITIALIZE_ONCE(&Checkable::StaticInitialize);
  17
  18 boost::signals2::signal<void (const Checkable::Ptr&, const String&, const String&, AcknowledgementType, bool, bool, double, const MessageOrigin::Ptr&)> Checkable::OnAcknowledgementSet;
  19 boost::signals2::signal<void (const Checkable::Ptr&, const MessageOrigin::Ptr&)> Checkable::OnAcknowledgementCleared;
  20
  21 static Timer::Ptr l_CheckablesFireSuppressedNotifications;
  22
  23 void Checkable::StaticInitialize()
  24 {
  25         /* fixed downtime start */
  26         Downtime::OnDowntimeStarted.connect(std::bind(&Checkable::NotifyFixedDowntimeStart, _1));
  27         /* flexible downtime start */
  28         Downtime::OnDowntimeTriggered.connect(std::bind(&Checkable::NotifyFlexibleDowntimeStart, _1));
  29         /* fixed/flexible downtime end */
  30         Downtime::OnDowntimeRemoved.connect(std::bind(&Checkable::NotifyDowntimeEnd, _1));
  31 }
  32
  33 Checkable::Checkable()
  34 {
  35         SetSchedulingOffset(Utility::Random());
  36 }
  37
  38 void Checkable::OnAllConfigLoaded()
  39 {
  40         ObjectImpl<Checkable>::OnAllConfigLoaded();
  41
  42         Endpoint::Ptr endpoint = GetCommandEndpoint();
  43
  44         if (endpoint) {
  45                 Zone::Ptr checkableZone = static_pointer_cast<Zone>(GetZone());
  46
  47                 if (checkableZone) {
  48                         Zone::Ptr cmdZone = endpoint->GetZone();
  49
  50                         if (cmdZone != checkableZone && cmdZone->GetParent() != checkableZone) {
  51                                 BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
  52                                         "Command endpoint must be in zone '" + checkableZone->GetName() + "' or in a direct child zone thereof."));
  53                         }
  54                 } else {
  55                         BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
  56                                 "Command endpoint must not be set."));
  57                 }
  58         }
  59 }
  60
  61 void Checkable::Start(bool runtimeCreated)
  62 {
  63         double now = Utility::GetTime();
  64
  65         if (GetNextCheck() < now + 60) {
  66                 double delta = std::min(GetCheckInterval(), 60.0);
  67                 delta *= (double)std::rand() / RAND_MAX;
  68                 SetNextCheck(now + delta);
  69         }
  70
  71         ObjectImpl<Checkable>::Start(runtimeCreated);
  72
  73         static boost::once_flag once = BOOST_ONCE_INIT;
  74
  75         boost::call_once(once, []() {
  76                 l_CheckablesFireSuppressedNotifications = new Timer();
  77                 l_CheckablesFireSuppressedNotifications->SetInterval(5);
  78                 l_CheckablesFireSuppressedNotifications->OnTimerExpired.connect(&Checkable::FireSuppressedNotifications);
  79                 l_CheckablesFireSuppressedNotifications->Start();
  80         });
  81 }
  82
  83 void Checkable::AddGroup(const String& name)
  84 {
  85         boost::mutex::scoped_lock lock(m_CheckableMutex);
  86
  87         Array::Ptr groups;
  88         auto *host = dynamic_cast<Host *>(this);
  89
  90         if (host)
  91                 groups = host->GetGroups();
  92         else
  93                 groups = static_cast<Service *>(this)->GetGroups();
  94
  95         if (groups && groups->Contains(name))
  96                 return;
  97
  98         if (!groups)
  99                 groups = new Array();
 100
 101         groups->Add(name);
 102 }
 103
 104 AcknowledgementType Checkable::GetAcknowledgement()
 105 {
 106         auto avalue = static_cast<AcknowledgementType>(GetAcknowledgementRaw());
 107
 108         if (avalue != AcknowledgementNone) {
 109                 double expiry = GetAcknowledgementExpiry();
 110
 111                 if (expiry != 0 && expiry < Utility::GetTime()) {
 112                         avalue = AcknowledgementNone;
 113                         ClearAcknowledgement();
 114                 }
 115         }
 116
 117         return avalue;
 118 }
 119
 120 bool Checkable::IsAcknowledged() const
 121 {
 122         return const_cast<Checkable *>(this)->GetAcknowledgement() != AcknowledgementNone;
 123 }
 124
 125 void Checkable::AcknowledgeProblem(const String& author, const String& comment, AcknowledgementType type, bool notify, bool persistent, double expiry, const MessageOrigin::Ptr& origin)
 126 {
 127         SetAcknowledgementRaw(type);
 128         SetAcknowledgementExpiry(expiry);
 129
 130         if (notify && !IsPaused())
 131                 OnNotificationsRequested(this, NotificationAcknowledgement, GetLastCheckResult(), author, comment, nullptr);
 132
 133         OnAcknowledgementSet(this, author, comment, type, notify, persistent, expiry, origin);
 134 }
 135
 136 void Checkable::ClearAcknowledgement(const MessageOrigin::Ptr& origin)
 137 {
 138         SetAcknowledgementRaw(AcknowledgementNone);
 139         SetAcknowledgementExpiry(0);
 140
 141         OnAcknowledgementCleared(this, origin);
 142 }
 143
 144 Endpoint::Ptr Checkable::GetCommandEndpoint() const
 145 {
 146         return Endpoint::GetByName(GetCommandEndpointRaw());
 147 }
 148
 149 int Checkable::GetSeverity() const
 150 {
 151         /* overridden in Host/Service class. */
 152         return 0;
 153 }
 154
 155 bool Checkable::GetProblem() const
 156 {
 157         return !IsStateOK(GetStateRaw());
 158 }
 159
 160 bool Checkable::GetHandled() const
 161 {
 162         return GetProblem() && (IsInDowntime() || IsAcknowledged());
 163 }
 164
 165 void Checkable::NotifyFixedDowntimeStart(const Downtime::Ptr& downtime)
 166 {
 167         if (!downtime->GetFixed())
 168                 return;
 169
 170         NotifyDowntimeInternal(downtime);
 171 }
 172
 173 void Checkable::NotifyFlexibleDowntimeStart(const Downtime::Ptr& downtime)
 174 {
 175         if (downtime->GetFixed())
 176                 return;
 177
 178         NotifyDowntimeInternal(downtime);
 179 }
 180
 181 void Checkable::NotifyDowntimeInternal(const Downtime::Ptr& downtime)
 182 {
 183         Checkable::Ptr checkable = downtime->GetCheckable();
 184
 185         if (!checkable->IsPaused())
 186                 OnNotificationsRequested(checkable, NotificationDowntimeStart, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
 187 }
 188
 189 void Checkable::NotifyDowntimeEnd(const Downtime::Ptr& downtime)
 190 {
 191         /* don't send notifications for flexible downtimes which never triggered */
 192         if (!downtime->GetFixed() && !downtime->IsTriggered())
 193                 return;
 194
 195         Checkable::Ptr checkable = downtime->GetCheckable();
 196
 197         if (!checkable->IsPaused())
 198                 OnNotificationsRequested(checkable, NotificationDowntimeEnd, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
 199 }
 200
 201 void Checkable::ValidateCheckInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
 202 {
 203         ObjectImpl<Checkable>::ValidateCheckInterval(lvalue, utils);
 204
 205         if (lvalue() <= 0)
 206                 BOOST_THROW_EXCEPTION(ValidationError(this, { "check_interval" }, "Interval must be greater than 0."));
 207 }
 208
 209 void Checkable::ValidateRetryInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
 210 {
 211         ObjectImpl<Checkable>::ValidateRetryInterval(lvalue, utils);
 212
 213         if (lvalue() <= 0)
 214                 BOOST_THROW_EXCEPTION(ValidationError(this, { "retry_interval" }, "Interval must be greater than 0."));
 215 }
 216
 217 void Checkable::ValidateMaxCheckAttempts(const Lazy<int>& lvalue, const ValidationUtils& utils)
 218 {
 219         ObjectImpl<Checkable>::ValidateMaxCheckAttempts(lvalue, utils);
 220
 221         if (lvalue() <= 0)
 222                 BOOST_THROW_EXCEPTION(ValidationError(this, { "max_check_attempts" }, "Value must be greater than 0."));
 223 }