icinga2/lib/icinga/service-downtime.cpp

396 lines
10 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2013 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "icinga/service.h"
#include "base/dynamictype.h"
#include "base/objectlock.h"
#include "base/logger_fwd.h"
#include "base/timer.h"
#include "base/utility.h"
#include <boost/tuple/tuple.hpp>
#include <boost/smart_ptr/make_shared.hpp>
#include <boost/foreach.hpp>
using namespace icinga;
static int l_NextDowntimeID = 1;
static boost::mutex l_DowntimeMutex;
static std::map<int, String> l_LegacyDowntimesCache;
static std::map<String, Service::WeakPtr> l_DowntimesCache;
static Timer::Ptr l_DowntimesExpireTimer;
boost::signals2::signal<void (const Service::Ptr&, const Dictionary::Ptr&, const String&)> Service::OnDowntimeAdded;
boost::signals2::signal<void (const Service::Ptr&, const Dictionary::Ptr&, const String&)> Service::OnDowntimeRemoved;
boost::signals2::signal<void (const Service::Ptr&, const Dictionary::Ptr&)> Service::OnDowntimeTriggered;
int Service::GetNextDowntimeID(void)
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
return l_NextDowntimeID;
}
Dictionary::Ptr Service::GetDowntimes(void) const
{
return m_Downtimes;
}
String Service::AddDowntime(const String& comment_id,
double startTime, double endTime, bool fixed,
const String& triggeredBy, double duration, const String& id, const String& authority)
{
String uid;
if (id.IsEmpty())
uid = Utility::NewUniqueID();
else
uid = id;
Dictionary::Ptr downtime = boost::make_shared<Dictionary>();
downtime->Set("id", uid);
downtime->Set("entry_time", Utility::GetTime());
downtime->Set("comment_id", comment_id);
downtime->Set("start_time", startTime);
downtime->Set("end_time", endTime);
downtime->Set("fixed", fixed);
downtime->Set("duration", duration);
downtime->Set("triggered_by", triggeredBy);
downtime->Set("triggers", boost::make_shared<Dictionary>());
downtime->Set("trigger_time", 0);
int legacy_id;
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
legacy_id = l_NextDowntimeID++;
}
downtime->Set("legacy_id", legacy_id);
if (!triggeredBy.IsEmpty()) {
Service::Ptr otherOwner = GetOwnerByDowntimeID(triggeredBy);
Dictionary::Ptr otherDowntimes = otherOwner->m_Downtimes;
Dictionary::Ptr otherDowntime = otherDowntimes->Get(triggeredBy);
Dictionary::Ptr triggers = otherDowntime->Get("triggers");
{
ObjectLock olock(otherOwner);
triggers->Set(triggeredBy, triggeredBy);
}
}
Dictionary::Ptr downtimes;
{
ObjectLock olock(this);
downtimes = m_Downtimes;
if (!downtimes)
downtimes = boost::make_shared<Dictionary>();
m_Downtimes = downtimes;
}
downtimes->Set(uid, downtime);
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
l_LegacyDowntimesCache[legacy_id] = uid;
l_DowntimesCache[uid] = GetSelf();
}
Log(LogWarning, "icinga", "added downtime with ID '" + downtime->Get("legacy_id") + "'.");
Utility::QueueAsyncCallback(boost::bind(boost::ref(OnDowntimeAdded), GetSelf(), downtime, authority));
return uid;
}
void Service::RemoveDowntime(const String& id, bool cancelled, const String& authority)
{
Service::Ptr owner = GetOwnerByDowntimeID(id);
if (!owner)
return;
Dictionary::Ptr downtimes = owner->GetDowntimes();
if (!downtimes)
return;
Dictionary::Ptr downtime = downtimes->Get(id);
if (!downtime)
return;
String comment_id = downtime->Get("comment_id");
int legacy_id = downtime->Get("legacy_id");
downtimes->Remove(id);
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
l_LegacyDowntimesCache.erase(legacy_id);
l_DowntimesCache.erase(id);
}
RemoveComment(comment_id);
downtime->Set("was_cancelled", cancelled);
Log(LogWarning, "icinga", "removed downtime with ID '" + downtime->Get("legacy_id") + "' from service '" + owner->GetName() + "'.");
Utility::QueueAsyncCallback(boost::bind(boost::ref(OnDowntimeRemoved), owner, downtime, authority));
}
void Service::TriggerDowntimes(void)
{
Dictionary::Ptr downtimes = GetDowntimes();
if (!downtimes)
return;
std::vector<String> ids;
{
ObjectLock olock(downtimes);
String id;
BOOST_FOREACH(boost::tie(id, boost::tuples::ignore), downtimes) {
ids.push_back(id);
}
}
BOOST_FOREACH(const String& id, ids) {
TriggerDowntime(id);
}
}
void Service::TriggerDowntime(const String& id)
{
Service::Ptr owner = GetOwnerByDowntimeID(id);
Dictionary::Ptr downtime = GetDowntimeByID(id);
if (!downtime)
return;
if (IsDowntimeActive(downtime) && IsDowntimeTriggered(downtime)) {
Log(LogDebug, "icinga", "Not triggering downtime with ID '" + downtime->Get("legacy_id") + "': already triggered.");
return;
}
if (IsDowntimeExpired(downtime)) {
Log(LogDebug, "icinga", "Not triggering downtime with ID '" + downtime->Get("legacy_id") + "': expired.");
return;
}
double now = Utility::GetTime();
if (now < downtime->Get("start_time") ||
now > downtime->Get("end_time"))
return;
Log(LogDebug, "icinga", "Triggering downtime with ID '" + downtime->Get("legacy_id") + "'.");
if (downtime->Get("trigger_time") == 0)
downtime->Set("trigger_time", now);
Dictionary::Ptr triggers = downtime->Get("triggers");
ObjectLock olock(triggers);
String tid;
BOOST_FOREACH(boost::tie(tid, boost::tuples::ignore), triggers) {
TriggerDowntime(tid);
}
Utility::QueueAsyncCallback(boost::bind(boost::ref(OnDowntimeTriggered), owner, downtime));
}
String Service::GetDowntimeIDFromLegacyID(int id)
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
std::map<int, String>::iterator it = l_LegacyDowntimesCache.find(id);
if (it == l_LegacyDowntimesCache.end())
return Empty;
return it->second;
}
Service::Ptr Service::GetOwnerByDowntimeID(const String& id)
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
return l_DowntimesCache[id].lock();
}
Dictionary::Ptr Service::GetDowntimeByID(const String& id)
{
Service::Ptr owner = GetOwnerByDowntimeID(id);
if (!owner)
return Dictionary::Ptr();
Dictionary::Ptr downtimes = owner->GetDowntimes();
if (downtimes)
return downtimes->Get(id);
return Dictionary::Ptr();
}
bool Service::IsDowntimeActive(const Dictionary::Ptr& downtime)
{
double now = Utility::GetTime();
if (now < downtime->Get("start_time") ||
now > downtime->Get("end_time"))
return false;
if (static_cast<bool>(downtime->Get("fixed")))
return true;
double triggerTime = downtime->Get("trigger_time");
if (triggerTime == 0)
return false;
return (triggerTime + downtime->Get("duration") < now);
}
bool Service::IsDowntimeTriggered(const Dictionary::Ptr& downtime)
{
double now = Utility::GetTime();
double triggerTime = downtime->Get("trigger_time");
return (triggerTime > 0 && triggerTime <= now);
}
bool Service::IsDowntimeExpired(const Dictionary::Ptr& downtime)
{
return (downtime->Get("end_time") < Utility::GetTime());
}
void Service::StartDowntimesExpiredTimer(void)
{
if (!l_DowntimesExpireTimer) {
l_DowntimesExpireTimer = boost::make_shared<Timer>();
l_DowntimesExpireTimer->SetInterval(60);
l_DowntimesExpireTimer->OnTimerExpired.connect(boost::bind(&Service::DowntimesExpireTimerHandler));
l_DowntimesExpireTimer->Start();
}
}
void Service::AddDowntimesToCache(void)
{
Log(LogDebug, "icinga", "Updating Service downtimes cache.");
Dictionary::Ptr downtimes = GetDowntimes();
if (!downtimes)
return;
boost::mutex::scoped_lock lock(l_DowntimeMutex);
ObjectLock olock(downtimes);
String id;
Dictionary::Ptr downtime;
BOOST_FOREACH(boost::tie(id, downtime), downtimes) {
int legacy_id = downtime->Get("legacy_id");
if (legacy_id >= l_NextDowntimeID)
l_NextDowntimeID = legacy_id + 1;
l_LegacyDowntimesCache[legacy_id] = id;
l_DowntimesCache[id] = GetSelf();
}
}
void Service::RemoveExpiredDowntimes(void)
{
Dictionary::Ptr downtimes = GetDowntimes();
if (!downtimes)
return;
std::vector<String> expiredDowntimes;
{
ObjectLock olock(downtimes);
String id;
Dictionary::Ptr downtime;
BOOST_FOREACH(boost::tie(id, downtime), downtimes) {
if (IsDowntimeExpired(downtime))
expiredDowntimes.push_back(id);
}
}
BOOST_FOREACH(const String& id, expiredDowntimes) {
RemoveDowntime(id, false);
}
}
void Service::DowntimesExpireTimerHandler(void)
{
BOOST_FOREACH(const Service::Ptr& service, DynamicType::GetObjects<Service>()) {
service->RemoveExpiredDowntimes();
}
}
bool Service::IsInDowntime(void) const
{
Dictionary::Ptr downtimes = GetDowntimes();
if (!downtimes)
return false;
ObjectLock olock(downtimes);
Dictionary::Ptr downtime;
BOOST_FOREACH(boost::tie(boost::tuples::ignore, downtime), downtimes) {
if (Service::IsDowntimeActive(downtime))
return true;
}
return false;
}
int Service::GetDowntimeDepth(void) const
{
int downtime_depth = 0;
Dictionary::Ptr downtimes = GetDowntimes();
if (!downtimes)
return 0;
ObjectLock olock(downtimes);
Dictionary::Ptr downtime;
BOOST_FOREACH(boost::tie(boost::tuples::ignore, downtime), downtimes) {
if (Service::IsDowntimeActive(downtime))
downtime_depth++;
}
return downtime_depth;
}