icinga2/lib/icinga/host.cpp

309 lines
8.1 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2016 Icinga Development Team (https://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/host.hpp"
#include "icinga/host.tcpp"
#include "icinga/service.hpp"
#include "icinga/hostgroup.hpp"
#include "icinga/pluginutility.hpp"
#include "icinga/scheduleddowntime.hpp"
#include "base/objectlock.hpp"
#include "base/convert.hpp"
#include "base/utility.hpp"
#include "base/debug.hpp"
#include "base/json.hpp"
#include <boost/foreach.hpp>
using namespace icinga;
REGISTER_TYPE(Host);
void Host::OnAllConfigLoaded(void)
{
ObjectImpl<Host>::OnAllConfigLoaded();
String zoneName = GetZoneName();
if (!zoneName.IsEmpty()) {
Zone::Ptr zone = Zone::GetByName(zoneName);
if (zone && zone->IsGlobal())
BOOST_THROW_EXCEPTION(std::invalid_argument("Host '" + GetName() + "' cannot be put into global zone '" + zone->GetName() + "'."));
}
HostGroup::EvaluateObjectRules(this);
Array::Ptr groups = GetGroups();
if (groups) {
groups = groups->ShallowClone();
ObjectLock olock(groups);
BOOST_FOREACH(const String& name, groups) {
HostGroup::Ptr hg = HostGroup::GetByName(name);
if (hg)
hg->ResolveGroupMembership(this, true);
}
}
}
void Host::CreateChildObjects(const Type::Ptr& childType)
{
if (childType->GetName() == "ScheduledDowntime")
ScheduledDowntime::EvaluateApplyRules(this);
if (childType->GetName() == "Notification")
Notification::EvaluateApplyRules(this);
if (childType->GetName() == "Dependency")
Dependency::EvaluateApplyRules(this);
if (childType->GetName() == "Service")
Service::EvaluateApplyRules(this);
}
void Host::Stop(bool runtimeRemoved)
{
ObjectImpl<Host>::Stop(runtimeRemoved);
Array::Ptr groups = GetGroups();
if (groups) {
ObjectLock olock(groups);
BOOST_FOREACH(const String& name, groups) {
HostGroup::Ptr hg = HostGroup::GetByName(name);
if (hg)
hg->ResolveGroupMembership(this, false);
}
}
// TODO: unregister slave services/notifications?
}
std::vector<Service::Ptr> Host::GetServices(void) const
{
boost::mutex::scoped_lock lock(m_ServicesMutex);
std::vector<Service::Ptr> services;
services.reserve(m_Services.size());
typedef std::pair<String, Service::Ptr> ServicePair;
BOOST_FOREACH(const ServicePair& kv, m_Services) {
services.push_back(kv.second);
}
return services;
}
void Host::AddService(const Service::Ptr& service)
{
boost::mutex::scoped_lock lock(m_ServicesMutex);
m_Services[service->GetShortName()] = service;
}
void Host::RemoveService(const Service::Ptr& service)
{
boost::mutex::scoped_lock lock(m_ServicesMutex);
m_Services.erase(service->GetShortName());
}
int Host::GetTotalServices(void) const
{
return GetServices().size();
}
Service::Ptr Host::GetServiceByShortName(const Value& name)
{
if (name.IsScalar()) {
{
boost::mutex::scoped_lock lock(m_ServicesMutex);
std::map<String, Service::Ptr>::const_iterator it = m_Services.find(name);
if (it != m_Services.end())
return it->second;
}
return Service::Ptr();
} else if (name.IsObjectType<Dictionary>()) {
Dictionary::Ptr dict = name;
String short_name;
return Service::GetByNamePair(dict->Get("host"), dict->Get("service"));
} else {
BOOST_THROW_EXCEPTION(std::invalid_argument("Host/Service name pair is invalid: " + JsonEncode(name)));
}
}
HostState Host::CalculateState(ServiceState state)
{
switch (state) {
case ServiceOK:
case ServiceWarning:
return HostUp;
default:
return HostDown;
}
}
HostState Host::GetState(void) const
{
return CalculateState(GetStateRaw());
}
HostState Host::GetLastState(void) const
{
return CalculateState(GetLastStateRaw());
}
HostState Host::GetLastHardState(void) const
{
return CalculateState(GetLastHardStateRaw());
}
void Host::SaveLastState(ServiceState state, double timestamp)
{
if (state == ServiceOK || state == ServiceWarning)
SetLastStateUp(timestamp);
else if (state == ServiceCritical)
SetLastStateDown(timestamp);
}
HostState Host::StateFromString(const String& state)
{
if (state == "UP")
return HostUp;
else
return HostDown;
}
String Host::StateToString(HostState state)
{
switch (state) {
case HostUp:
return "UP";
case HostDown:
return "DOWN";
default:
return "INVALID";
}
}
StateType Host::StateTypeFromString(const String& type)
{
if (type == "SOFT")
return StateTypeSoft;
else
return StateTypeHard;
}
String Host::StateTypeToString(StateType type)
{
if (type == StateTypeSoft)
return "SOFT";
else
return "HARD";
}
bool Host::ResolveMacro(const String& macro, const CheckResult::Ptr&, Value *result) const
{
if (macro == "state") {
*result = StateToString(GetState());
return true;
} else if (macro == "state_id") {
*result = Convert::ToString(GetState());
return true;
} else if (macro == "state_type") {
*result = StateTypeToString(GetStateType());
return true;
} else if (macro == "last_state") {
*result = StateToString(GetLastState());
return true;
} else if (macro == "last_state_id") {
*result = Convert::ToString(GetLastState());
return true;
} else if (macro == "last_state_type") {
*result = StateTypeToString(GetLastStateType());
return true;
} else if (macro == "last_state_change") {
*result = Convert::ToString((long)GetLastStateChange());
return true;
} else if (macro == "downtime_depth") {
*result = Convert::ToString((long)GetDowntimeDepth());
return true;
} else if (macro == "duration_sec") {
*result = Convert::ToString((long)(Utility::GetTime() - GetLastStateChange()));
return true;
} else if (macro == "num_services" || macro == "num_services_ok" || macro == "num_services_warning"
|| macro == "num_services_unknown" || macro == "num_services_critical") {
int filter = -1;
int count = 0;
if (macro == "num_services_ok")
filter = ServiceOK;
else if (macro == "num_services_warning")
filter = ServiceWarning;
else if (macro == "num_services_unknown")
filter = ServiceUnknown;
else if (macro == "num_services_critical")
filter = ServiceCritical;
BOOST_FOREACH(const Service::Ptr& service, GetServices()) {
if (filter != -1 && service->GetState() != filter)
continue;
count++;
}
*result = Convert::ToString(count);
return true;
}
CheckResult::Ptr cr = GetLastCheckResult();
if (cr) {
if (macro == "latency") {
*result = Convert::ToString(Service::CalculateLatency(cr));
return true;
} else if (macro == "execution_time") {
*result = Convert::ToString(Service::CalculateExecutionTime(cr));
return true;
} else if (macro == "output") {
*result = cr->GetOutput();
return true;
} else if (macro == "perfdata") {
*result = PluginUtility::FormatPerfdata(cr->GetPerformanceData());
return true;
} else if (macro == "last_check") {
*result = Convert::ToString((long)cr->GetScheduleStart());
return true;
} else if (macro == "check_source") {
*result = cr->GetCheckSource();
return true;
}
}
return false;
}