mirror of https://github.com/Icinga/icinga2.git
624 lines
14 KiB
C++
624 lines
14 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2013 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "icinga/host.h"
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#include "icinga/service.h"
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#include "icinga/hostgroup.h"
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#include "icinga/icingaapplication.h"
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#include "base/dynamictype.h"
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#include "base/objectlock.h"
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#include "base/logger_fwd.h"
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#include "base/timer.h"
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#include "base/convert.h"
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#include "base/utility.h"
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#include "base/scriptfunction.h"
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#include "base/debug.h"
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#include "config/configitembuilder.h"
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#include "config/configcompilercontext.h"
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#include <boost/tuple/tuple.hpp>
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#include <boost/smart_ptr/make_shared.hpp>
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#include <boost/foreach.hpp>
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using namespace icinga;
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REGISTER_TYPE(Host);
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void Host::Start(void)
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{
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DynamicObject::Start();
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ASSERT(!OwnsLock());
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Array::Ptr groups = GetGroups();
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if (groups) {
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ObjectLock olock(groups);
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BOOST_FOREACH(const String& name, groups) {
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HostGroup::Ptr hg = HostGroup::GetByName(name);
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if (hg)
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hg->AddMember(GetSelf());
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}
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}
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}
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void Host::OnConfigLoaded(void)
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{
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UpdateSlaveServices();
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}
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void Host::Stop(void)
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{
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DynamicObject::Stop();
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Array::Ptr groups = GetGroups();
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if (groups) {
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ObjectLock olock(groups);
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BOOST_FOREACH(const String& name, groups) {
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HostGroup::Ptr hg = HostGroup::GetByName(name);
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if (hg)
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hg->RemoveMember(GetSelf());
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}
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}
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// TODO: unregister slave services/notifications?
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}
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bool Host::IsReachable(void) const
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{
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ASSERT(!OwnsLock());
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std::set<Service::Ptr> parentServices = GetParentServices();
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BOOST_FOREACH(const Service::Ptr& service, parentServices) {
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ObjectLock olock(service);
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/* ignore pending services */
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if (!service->GetLastCheckResult())
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continue;
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/* ignore soft states */
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if (service->GetStateType() == StateTypeSoft)
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continue;
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/* ignore services states OK and Warning */
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if (service->GetState() == StateOK ||
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service->GetState() == StateWarning)
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continue;
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return false;
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}
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std::set<Host::Ptr> parentHosts = GetParentHosts();
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BOOST_FOREACH(const Host::Ptr& host, parentHosts) {
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Service::Ptr hc = host->GetCheckService();
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/* ignore hosts that don't have a check */
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if (!hc)
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continue;
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ObjectLock olock(hc);
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/* ignore soft states */
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if (hc->GetStateType() == StateTypeSoft)
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continue;
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/* ignore hosts that are up */
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if (hc->GetState() == StateOK)
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continue;
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return false;
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}
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return true;
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}
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void Host::UpdateSlaveServices(void)
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{
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ASSERT(!OwnsLock());
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ConfigItem::Ptr item = ConfigItem::GetObject("Host", GetName());
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/* Don't create slave services unless we own this object */
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if (!item)
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return;
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Dictionary::Ptr service_descriptions = GetServiceDescriptions();
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if (!service_descriptions)
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return;
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ObjectLock olock(service_descriptions);
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String svcname;
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Value svcdesc;
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BOOST_FOREACH(boost::tie(svcname, svcdesc), service_descriptions) {
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if (svcdesc.IsScalar())
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svcname = svcdesc;
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std::ostringstream namebuf;
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namebuf << GetName() << ":" << svcname;
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String name = namebuf.str();
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std::vector<String> path;
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path.push_back("services");
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path.push_back(svcname);
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DebugInfo di;
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item->GetLinkedExpressionList()->FindDebugInfoPath(path, di);
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if (di.Path.IsEmpty())
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di = item->GetDebugInfo();
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ConfigItemBuilder::Ptr builder = boost::make_shared<ConfigItemBuilder>(di);
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builder->SetType("Service");
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builder->SetName(name);
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builder->AddExpression("host", OperatorSet, GetName());
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builder->AddExpression("display_name", OperatorSet, svcname);
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builder->AddExpression("short_name", OperatorSet, svcname);
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if (!svcdesc.IsObjectType<Dictionary>())
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BOOST_THROW_EXCEPTION(std::invalid_argument("Service description must be either a string or a dictionary."));
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Dictionary::Ptr service = svcdesc;
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Array::Ptr templates = service->Get("templates");
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if (templates) {
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ObjectLock olock(templates);
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BOOST_FOREACH(const Value& tmpl, templates) {
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builder->AddParent(tmpl);
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}
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}
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/* Clone attributes from the service expression list. */
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ExpressionList::Ptr svc_exprl = boost::make_shared<ExpressionList>();
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item->GetLinkedExpressionList()->ExtractPath(path, svc_exprl);
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std::vector<String> dpath;
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dpath.push_back("templates");
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svc_exprl->ErasePath(dpath);
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builder->AddExpressionList(svc_exprl);
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ConfigItem::Ptr serviceItem = builder->Compile();
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serviceItem->Register();
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DynamicObject::Ptr dobj = serviceItem->Commit();
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dobj->OnConfigLoaded();
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}
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}
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std::set<Service::Ptr> Host::GetServices(void) const
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{
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boost::mutex::scoped_lock lock(m_ServicesMutex);
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std::set<Service::Ptr> services;
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Service::WeakPtr wservice;
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BOOST_FOREACH(boost::tie(boost::tuples::ignore, wservice), m_Services) {
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Service::Ptr service = wservice.lock();
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if (!service)
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continue;
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services.insert(service);
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}
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return services;
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}
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void Host::AddService(const Service::Ptr& service)
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{
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boost::mutex::scoped_lock lock(m_ServicesMutex);
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m_Services[service->GetShortName()] = service;
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}
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void Host::RemoveService(const Service::Ptr& service)
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{
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boost::mutex::scoped_lock lock(m_ServicesMutex);
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m_Services.erase(service->GetShortName());
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}
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int Host::GetTotalServices(void) const
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{
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return GetServices().size();
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}
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Service::Ptr Host::GetServiceByShortName(const Value& name) const
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{
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if (name.IsScalar()) {
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{
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boost::mutex::scoped_lock lock(m_ServicesMutex);
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std::map<String, Service::Ptr>::const_iterator it = m_Services.find(name);
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if (it != m_Services.end())
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return it->second;
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}
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return Service::Ptr();
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} else if (name.IsObjectType<Dictionary>()) {
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Dictionary::Ptr dict = name;
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String short_name;
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return Service::GetByNamePair(dict->Get("host"), dict->Get("service"));
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} else {
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BOOST_THROW_EXCEPTION(std::invalid_argument("Host/Service name pair is invalid: " + name.Serialize()));
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}
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}
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std::set<Host::Ptr> Host::GetParentHosts(void) const
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{
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std::set<Host::Ptr> parents;
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Array::Ptr dependencies = GetHostDependencies();
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if (dependencies) {
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ObjectLock olock(dependencies);
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BOOST_FOREACH(const Value& value, dependencies) {
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if (value == GetName())
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continue;
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Host::Ptr host = GetByName(value);
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if (!host)
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continue;
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parents.insert(host);
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}
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}
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return parents;
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}
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std::set<Host::Ptr> Host::GetChildHosts(void) const
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{
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std::set<Host::Ptr> children;
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BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjects<Host>()) {
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Array::Ptr dependencies = host->GetHostDependencies();
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if (dependencies) {
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ObjectLock olock(dependencies);
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BOOST_FOREACH(const Value& value, dependencies) {
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if (value == GetName())
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children.insert(host);
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}
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}
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}
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return children;
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}
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Service::Ptr Host::GetCheckService(void) const
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{
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String host_check = GetCheck();
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if (host_check.IsEmpty())
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return Service::Ptr();
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return GetServiceByShortName(host_check);
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}
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std::set<Service::Ptr> Host::GetParentServices(void) const
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{
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std::set<Service::Ptr> parents;
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Array::Ptr dependencies = GetServiceDependencies();
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if (dependencies) {
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ObjectLock olock(dependencies);
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BOOST_FOREACH(const Value& value, dependencies) {
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parents.insert(GetServiceByShortName(value));
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}
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}
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return parents;
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}
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HostState Host::CalculateState(ServiceState state, bool reachable)
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{
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if (!reachable)
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return HostUnreachable;
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switch (state) {
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case StateOK:
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case StateWarning:
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return HostUp;
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default:
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return HostDown;
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}
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}
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HostState Host::GetState(void) const
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{
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ASSERT(!OwnsLock());
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if (!IsReachable())
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return HostUnreachable;
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return HostUp;
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switch (hc->GetState()) {
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case StateOK:
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case StateWarning:
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return HostUp;
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default:
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return HostDown;
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}
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}
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HostState Host::GetLastState(void) const
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{
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ASSERT(!OwnsLock());
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if (!IsReachable())
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return HostUnreachable;
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return HostUp;
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switch (hc->GetLastState()) {
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case StateOK:
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case StateWarning:
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return HostUp;
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default:
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return HostDown;
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}
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}
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HostState Host::GetLastHardState(void) const
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{
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ASSERT(!OwnsLock());
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if (!IsReachable())
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return HostUnreachable;
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return HostUp;
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switch (hc->GetLastHardState()) {
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case StateOK:
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case StateWarning:
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return HostUp;
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default:
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return HostDown;
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}
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}
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double Host::GetLastStateUp(void) const
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{
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ASSERT(!OwnsLock());
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return 0;
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if (hc->GetLastStateOK() > hc->GetLastStateWarning())
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return hc->GetLastStateOK();
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else
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return hc->GetLastStateWarning();
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}
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double Host::GetLastStateDown(void) const
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{
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ASSERT(!OwnsLock());
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return 0;
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return hc->GetLastStateCritical();
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}
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double Host::GetLastStateUnreachable(void) const
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{
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ASSERT(!OwnsLock());
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return 0;
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return hc->GetLastStateUnreachable();
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}
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double Host::GetLastStateChange(void) const
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{
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return Application::GetStartTime();
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return hc->GetLastStateChange();
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}
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double Host::GetLastHardStateChange(void) const
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{
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return Application::GetStartTime();
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return hc->GetLastHardStateChange();
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}
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StateType Host::GetLastStateType(void) const
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{
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return StateTypeHard;
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return hc->GetLastStateType();
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}
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StateType Host::GetStateType(void) const
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{
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Service::Ptr hc = GetCheckService();
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if (!hc)
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return StateTypeHard;
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return hc->GetStateType();
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}
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String Host::StateToString(HostState state)
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{
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switch (state) {
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case HostUp:
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return "UP";
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case HostDown:
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return "DOWN";
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case HostUnreachable:
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return "UNREACHABLE";
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default:
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return "INVALID";
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}
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}
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bool Host::ResolveMacro(const String& macro, const Dictionary::Ptr&, String *result) const
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{
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if (macro == "HOSTNAME") {
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*result = GetName();
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return true;
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}
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else if (macro == "HOSTDISPLAYNAME" || macro == "HOSTALIAS") {
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*result = GetDisplayName();
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return true;
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}
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Service::Ptr hc = GetCheckService();
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Dictionary::Ptr hccr;
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if (hc) {
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ServiceState state = hc->GetState();
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bool reachable = IsReachable();
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if (macro == "HOSTSTATE") {
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HostState hstate = CalculateState(state, reachable);
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switch (hstate) {
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case HostUnreachable:
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*result = "UNREACHABLE";
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break;
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case HostUp:
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*result = "UP";
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break;
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case HostDown:
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*result = "DOWN";
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break;
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default:
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ASSERT(0);
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}
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return true;
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} else if (macro == "HOSTSTATEID") {
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*result = Convert::ToString(state);
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return true;
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} else if (macro == "HOSTSTATETYPE") {
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*result = Service::StateTypeToString(hc->GetStateType());
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return true;
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} else if (macro == "HOSTATTEMPT") {
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*result = Convert::ToString(hc->GetCheckAttempt());
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return true;
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} else if (macro == "MAXHOSTATTEMPT") {
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*result = Convert::ToString(hc->GetMaxCheckAttempts());
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return true;
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} else if (macro == "LASTHOSTSTATE") {
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*result = StateToString(GetLastState());
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return true;
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} else if (macro == "LASTHOSTSTATEID") {
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*result = Convert::ToString(GetLastState());
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return true;
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} else if (macro == "LASTHOSTSTATETYPE") {
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*result = Service::StateTypeToString(GetLastStateType());
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return true;
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} else if (macro == "LASTHOSTSTATECHANGE") {
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*result = Convert::ToString((long)hc->GetLastStateChange());
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return true;
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} else if (macro == "HOSTDURATIONSEC") {
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*result = Convert::ToString((long)(Utility::GetTime() - hc->GetLastStateChange()));
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return true;
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}
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hccr = hc->GetLastCheckResult();
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}
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if (hccr) {
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if (macro == "HOSTLATENCY") {
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*result = Convert::ToString(Service::CalculateLatency(hccr));
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return true;
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} else if (macro == "HOSTEXECUTIONTIME") {
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*result = Convert::ToString(Service::CalculateExecutionTime(hccr));
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return true;
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} else if (macro == "HOSTOUTPUT") {
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*result = hccr->Get("output");
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return true;
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} else if (macro == "HOSTPERFDATA") {
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*result = hccr->Get("performance_data_raw");
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return true;
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} else if (macro == "LASTHOSTCHECK") {
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*result = Convert::ToString((long)hccr->Get("schedule_start"));
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return true;
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}
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}
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Dictionary::Ptr macros = GetMacros();
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String name = macro;
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if (name == "HOSTADDRESS")
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name = "address";
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else if (macro == "HOSTADDRESS6")
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name = "address6";
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if (macros && macros->Contains(name)) {
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*result = macros->Get(name);
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return true;
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}
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if (macro == "HOSTADDRESS" || macro == "HOSTADDRESS6") {
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*result = GetName();
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return true;
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}
|
|
|
|
return false;
|
|
}
|