icinga2/lib/icinga/service-downtime.cpp

394 lines
11 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 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 "config/configitembuilder.h"
#include "base/dynamictype.h"
#include "base/objectlock.h"
#include "base/logger_fwd.h"
#include "base/timer.h"
#include "base/utility.h"
#include "base/convert.h"
#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 Downtime::Ptr&, const String&)> Service::OnDowntimeAdded;
boost::signals2::signal<void (const Service::Ptr&, const Downtime::Ptr&, const String&)> Service::OnDowntimeRemoved;
boost::signals2::signal<void (const Service::Ptr&, const Downtime::Ptr&)> Service::OnDowntimeTriggered;
int Service::GetNextDowntimeID(void)
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
return l_NextDowntimeID;
}
String Service::AddDowntime(const String& author, const String& comment,
double startTime, double endTime, bool fixed,
const String& triggeredBy, double duration, const String& scheduledBy,
const String& id, const String& authority)
{
String uid;
if (id.IsEmpty())
uid = Utility::NewUniqueID();
else
uid = id;
Downtime::Ptr downtime = make_shared<Downtime>();
downtime->SetId(uid);
downtime->SetEntryTime(Utility::GetTime());
downtime->SetAuthor(author);
downtime->SetComment(comment);
downtime->SetStartTime(startTime);
downtime->SetEndTime(endTime);
downtime->SetFixed(fixed);
downtime->SetDuration(duration);
downtime->SetTriggeredBy(triggeredBy);
downtime->SetScheduledBy(scheduledBy);
if (!triggeredBy.IsEmpty()) {
Downtime::Ptr triggerDowntime = GetDowntimeByID(triggeredBy);
if (triggerDowntime)
downtime->SetTriggeredByLegacyId(triggerDowntime->GetLegacyId());
}
int legacy_id;
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
legacy_id = l_NextDowntimeID++;
}
downtime->SetLegacyId(legacy_id);
if (!triggeredBy.IsEmpty()) {
Service::Ptr otherOwner = GetOwnerByDowntimeID(triggeredBy);
Dictionary::Ptr otherDowntimes = otherOwner->GetDowntimes();
Downtime::Ptr otherDowntime = otherDowntimes->Get(triggeredBy);
Dictionary::Ptr triggers = otherDowntime->GetTriggers();
triggers->Set(triggeredBy, triggeredBy);
}
GetDowntimes()->Set(uid, downtime);
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
l_LegacyDowntimesCache[legacy_id] = uid;
l_DowntimesCache[uid] = GetSelf();
}
Log(LogDebug, "icinga", "Added downtime with ID '" + Convert::ToString(downtime->GetLegacyId()) +
"' between '" + Utility::FormatDateTime("%Y-%m-%d %H:%M:%S", startTime) + "' and '" + Utility::FormatDateTime("%Y-%m-%d %H:%M:%S", endTime) + "'.");
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();
Downtime::Ptr downtime = downtimes->Get(id);
if (!downtime)
return;
int legacy_id = downtime->GetLegacyId();
downtimes->Remove(id);
{
boost::mutex::scoped_lock lock(l_DowntimeMutex);
l_LegacyDowntimesCache.erase(legacy_id);
l_DowntimesCache.erase(id);
}
downtime->SetWasCancelled(cancelled);
Log(LogDebug, "icinga", "Removed downtime with ID '" + Convert::ToString(downtime->GetLegacyId()) + "' from service '" + owner->GetName() + "'.");
OnDowntimeRemoved(owner, downtime, authority);
}
void Service::TriggerDowntimes(void)
{
Dictionary::Ptr downtimes = GetDowntimes();
std::vector<String> ids;
{
ObjectLock olock(downtimes);
BOOST_FOREACH(const Dictionary::Pair& kv, downtimes) {
ids.push_back(kv.first);
}
}
BOOST_FOREACH(const String& id, ids) {
TriggerDowntime(id);
}
}
void Service::TriggerDowntime(const String& id)
{
Service::Ptr owner = GetOwnerByDowntimeID(id);
Downtime::Ptr downtime = GetDowntimeByID(id);
if (!downtime)
return;
if (downtime->IsActive() && downtime->IsTriggered()) {
Log(LogDebug, "icinga", "Not triggering downtime with ID '" + Convert::ToString(downtime->GetLegacyId()) + "': already triggered.");
return;
}
if (downtime->IsExpired()) {
Log(LogDebug, "icinga", "Not triggering downtime with ID '" + Convert::ToString(downtime->GetLegacyId()) + "': expired.");
return;
}
Log(LogDebug, "icinga", "Triggering downtime with ID '" + Convert::ToString(downtime->GetLegacyId()) + "'.");
if (downtime->GetTriggerTime() == 0)
downtime->SetTriggerTime(Utility::GetTime());
Dictionary::Ptr triggers = downtime->GetTriggers();
ObjectLock olock(triggers);
BOOST_FOREACH(const Dictionary::Pair& kv, triggers) {
TriggerDowntime(kv.first);
}
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();
}
Downtime::Ptr Service::GetDowntimeByID(const String& id)
{
Service::Ptr owner = GetOwnerByDowntimeID(id);
if (!owner)
return Downtime::Ptr();
Dictionary::Ptr downtimes = owner->GetDowntimes();
if (downtimes)
return downtimes->Get(id);
return Downtime::Ptr();
}
void Service::StartDowntimesExpiredTimer(void)
{
l_DowntimesExpireTimer = make_shared<Timer>();
l_DowntimesExpireTimer->SetInterval(60);
l_DowntimesExpireTimer->OnTimerExpired.connect(boost::bind(&Service::DowntimesExpireTimerHandler));
l_DowntimesExpireTimer->Start();
}
void Service::AddDowntimesToCache(void)
{
#ifdef _DEBUG
Log(LogDebug, "icinga", "Updating Service downtimes cache.");
#endif /* _DEBUG */
Dictionary::Ptr downtimes = GetDowntimes();
boost::mutex::scoped_lock lock(l_DowntimeMutex);
ObjectLock olock(downtimes);
BOOST_FOREACH(const Dictionary::Pair& kv, downtimes) {
Downtime::Ptr downtime = kv.second;
int legacy_id = downtime->GetLegacyId();
if (legacy_id >= l_NextDowntimeID)
l_NextDowntimeID = legacy_id + 1;
l_LegacyDowntimesCache[legacy_id] = kv.first;
l_DowntimesCache[kv.first] = GetSelf();
}
}
void Service::RemoveExpiredDowntimes(void)
{
Dictionary::Ptr downtimes = GetDowntimes();
std::vector<String> expiredDowntimes;
{
ObjectLock olock(downtimes);
BOOST_FOREACH(const Dictionary::Pair& kv, downtimes) {
Downtime::Ptr downtime = kv.second;
if (downtime->IsExpired())
expiredDowntimes.push_back(kv.first);
}
}
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();
ObjectLock olock(downtimes);
BOOST_FOREACH(const Dictionary::Pair& kv, downtimes) {
Downtime::Ptr downtime = kv.second;
if (downtime->IsActive())
return true;
}
return false;
}
int Service::GetDowntimeDepth(void) const
{
int downtime_depth = 0;
Dictionary::Ptr downtimes = GetDowntimes();
ObjectLock olock(downtimes);
BOOST_FOREACH(const Dictionary::Pair& kv, downtimes) {
Downtime::Ptr downtime = kv.second;
if (downtime->IsActive())
downtime_depth++;
}
return downtime_depth;
}
void Service::UpdateSlaveScheduledDowntimes(void)
{
/* Service scheduled downtime descs */
Dictionary::Ptr descs = GetScheduledDowntimeDescriptions();
if (!descs || descs->GetLength() == 0)
return;
ConfigItem::Ptr item = ConfigItem::GetObject("Service", GetName());
ObjectLock olock(descs);
BOOST_FOREACH(const Dictionary::Pair& kv, descs) {
std::ostringstream namebuf;
namebuf << GetName() << "!" << kv.first;
String name = namebuf.str();
std::vector<String> path;
path.push_back("scheduled_downtimes");
path.push_back(kv.first);
AExpression::Ptr exprl;
{
ObjectLock ilock(item);
exprl = item->GetExpressionList();
}
DebugInfo di;
exprl->FindDebugInfoPath(path, di);
if (di.Path.IsEmpty())
di = item->GetDebugInfo();
ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
builder->SetType("ScheduledDowntime");
builder->SetName(name);
Dictionary::Ptr scheduledDowntime = kv.second;
Array::Ptr templates = scheduledDowntime->Get("templates");
if (templates) {
ObjectLock tlock(templates);
BOOST_FOREACH(const Value& tmpl, templates) {
AExpression::Ptr atype = make_shared<AExpression>(&AExpression::OpLiteral, "ScheduledDowntime", di);
AExpression::Ptr atmpl = make_shared<AExpression>(&AExpression::OpLiteral, tmpl, di);
builder->AddExpression(make_shared<AExpression>(&AExpression::OpImport, atype, atmpl, di));
}
}
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet, "host", make_shared<AExpression>(&AExpression::OpLiteral, GetHost()->GetName(), di), di));
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet, "service", make_shared<AExpression>(&AExpression::OpLiteral, GetShortName(), di), di));
/* Clone attributes from the scheduled downtime expression list. */
Array::Ptr sd_exprl = make_shared<Array>();
exprl->ExtractPath(path, sd_exprl);
builder->AddExpression(make_shared<AExpression>(&AExpression::OpDict, sd_exprl, true, di));
builder->SetScope(item->GetScope());
ConfigItem::Ptr scheduledDowntimeItem = builder->Compile();
scheduledDowntimeItem->Register();
DynamicObject::Ptr dobj = scheduledDowntimeItem->Commit();
dobj->OnConfigLoaded();
}
}