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                         Zone::Ptr cmdZone = endpoint->GetZone();
  62
  63                         if (cmdZone != checkableZone && cmdZone->GetParent() != checkableZone) {
  64                                 BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
  65                                         "Command endpoint must be in zone '" + checkableZone->GetName() + "' or in a direct child zone thereof."));
  66                         }
  67                 } else {
  68                         BOOST_THROW_EXCEPTION(ValidationError(this, { "command_endpoint" },
  69                                 "Command endpoint must not be set."));
  70                 }
  71         }
  72 }
  73
  74 void Checkable::Start(bool runtimeCreated)
  75 {
  76         double now = Utility::GetTime();
  77
  78         if (GetNextCheck() < now + 60) {
  79                 double delta = std::min(GetCheckInterval(), 60.0);
  80                 delta *= (double)std::rand() / RAND_MAX;
  81                 SetNextCheck(now + delta);
  82         }
  83
  84         ObjectImpl<Checkable>::Start(runtimeCreated);
  85 }
  86
  87 void Checkable::AddGroup(const String& name)
  88 {
  89         boost::mutex::scoped_lock lock(m_CheckableMutex);
  90
  91         Array::Ptr groups;
  92         auto *host = dynamic_cast<Host *>(this);
  93
  94         if (host)
  95                 groups = host->GetGroups();
  96         else
  97                 groups = static_cast<Service *>(this)->GetGroups();
  98
  99         if (groups && groups->Contains(name))
 100                 return;
 101
 102         if (!groups)
 103                 groups = new Array();
 104
 105         groups->Add(name);
 106 }
 107
 108 AcknowledgementType Checkable::GetAcknowledgement()
 109 {
 110         auto avalue = static_cast<AcknowledgementType>(GetAcknowledgementRaw());
 111
 112         if (avalue != AcknowledgementNone) {
 113                 double expiry = GetAcknowledgementExpiry();
 114
 115                 if (expiry != 0 && expiry < Utility::GetTime()) {
 116                         avalue = AcknowledgementNone;
 117                         ClearAcknowledgement();
 118                 }
 119         }
 120
 121         return avalue;
 122 }
 123
 124 bool Checkable::IsAcknowledged() const
 125 {
 126         return const_cast<Checkable *>(this)->GetAcknowledgement() != AcknowledgementNone;
 127 }
 128
 129 void Checkable::AcknowledgeProblem(const String& author, const String& comment, AcknowledgementType type, bool notify, bool persistent, double expiry, const MessageOrigin::Ptr& origin)
 130 {
 131         SetAcknowledgementRaw(type);
 132         SetAcknowledgementExpiry(expiry);
 133
 134         if (notify && !IsPaused())
 135                 OnNotificationsRequested(this, NotificationAcknowledgement, GetLastCheckResult(), author, comment, nullptr);
 136
 137         OnAcknowledgementSet(this, author, comment, type, notify, persistent, expiry, origin);
 138 }
 139
 140 void Checkable::ClearAcknowledgement(const MessageOrigin::Ptr& origin)
 141 {
 142         SetAcknowledgementRaw(AcknowledgementNone);
 143         SetAcknowledgementExpiry(0);
 144
 145         OnAcknowledgementCleared(this, origin);
 146 }
 147
 148 Endpoint::Ptr Checkable::GetCommandEndpoint() const
 149 {
 150         return Endpoint::GetByName(GetCommandEndpointRaw());
 151 }
 152
 153 int Checkable::GetSeverity() const
 154 {
 155         /* overridden in Host/Service class. */
 156         return 0;
 157 }
 158
 159 void Checkable::NotifyFixedDowntimeStart(const Downtime::Ptr& downtime)
 160 {
 161         if (!downtime->GetFixed())
 162                 return;
 163
 164         NotifyDowntimeInternal(downtime);
 165 }
 166
 167 void Checkable::NotifyFlexibleDowntimeStart(const Downtime::Ptr& downtime)
 168 {
 169         if (downtime->GetFixed())
 170                 return;
 171
 172         NotifyDowntimeInternal(downtime);
 173 }
 174
 175 void Checkable::NotifyDowntimeInternal(const Downtime::Ptr& downtime)
 176 {
 177         Checkable::Ptr checkable = downtime->GetCheckable();
 178
 179         if (!checkable->IsPaused())
 180                 OnNotificationsRequested(checkable, NotificationDowntimeStart, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
 181 }
 182
 183 void Checkable::NotifyDowntimeEnd(const Downtime::Ptr& downtime)
 184 {
 185         /* don't send notifications for flexible downtimes which never triggered */
 186         if (!downtime->GetFixed() && !downtime->IsTriggered())
 187                 return;
 188
 189         Checkable::Ptr checkable = downtime->GetCheckable();
 190
 191         if (!checkable->IsPaused())
 192                 OnNotificationsRequested(checkable, NotificationDowntimeEnd, checkable->GetLastCheckResult(), downtime->GetAuthor(), downtime->GetComment(), nullptr);
 193 }
 194
 195 void Checkable::ValidateCheckInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
 196 {
 197         ObjectImpl<Checkable>::ValidateCheckInterval(lvalue, utils);
 198
 199         if (lvalue() <= 0)
 200                 BOOST_THROW_EXCEPTION(ValidationError(this, { "check_interval" }, "Interval must be greater than 0."));
 201 }
 202
 203 void Checkable::ValidateRetryInterval(const Lazy<double>& lvalue, const ValidationUtils& utils)
 204 {
 205         ObjectImpl<Checkable>::ValidateRetryInterval(lvalue, utils);
 206
 207         if (lvalue() <= 0)
 208                 BOOST_THROW_EXCEPTION(ValidationError(this, { "retry_interval" }, "Interval must be greater than 0."));
 209 }
 210
 211 void Checkable::ValidateMaxCheckAttempts(const Lazy<int>& lvalue, const ValidationUtils& utils)
 212 {
 213         ObjectImpl<Checkable>::ValidateMaxCheckAttempts(lvalue, utils);
 214
 215         if (lvalue() <= 0)
 216                 BOOST_THROW_EXCEPTION(ValidationError(this, { "max_check_attempts" }, "Value must be greater than 0."));
 217 }