mirror of https://github.com/Icinga/icinga2.git
481 lines
11 KiB
C++
481 lines
11 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 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 "i2-icinga.h"
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using namespace icinga;
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REGISTER_CLASS(Service);
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const int Service::DefaultMaxCheckAttempts = 3;
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const int Service::DefaultCheckInterval = 5 * 60;
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const int Service::MinCheckInterval = 15;
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const int Service::CheckIntervalDivisor = 5;
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boost::signal<void (const Service::Ptr&, const CheckResultMessage&)> Service::OnCheckResultReceived;
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boost::signal<void (const Service::Ptr&, const String&)> Service::OnCheckerChanged;
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Service::Service(const Dictionary::Ptr& serializedObject)
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: DynamicObject(serializedObject)
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{
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RegisterAttribute("alias", Attribute_Config);
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RegisterAttribute("host_name", Attribute_Config);
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RegisterAttribute("macros", Attribute_Config);
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RegisterAttribute("check_command", Attribute_Config);
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RegisterAttribute("max_check_attempts", Attribute_Config);
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RegisterAttribute("check_interval", Attribute_Config);
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RegisterAttribute("retry_interval", Attribute_Config);
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RegisterAttribute("dependencies", Attribute_Config);
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RegisterAttribute("servicegroups", Attribute_Config);
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RegisterAttribute("checkers", Attribute_Config);
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RegisterAttribute("scheduling_offset", Attribute_Transient);
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RegisterAttribute("next_check", Attribute_Replicated);
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RegisterAttribute("checker", Attribute_Replicated);
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RegisterAttribute("check_attempt", Attribute_Replicated);
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RegisterAttribute("state", Attribute_Replicated);
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RegisterAttribute("state_type", Attribute_Replicated);
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RegisterAttribute("last_result", Attribute_Replicated);
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RegisterAttribute("last_state_change", Attribute_Replicated);
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RegisterAttribute("last_hard_state_change", Attribute_Replicated);
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}
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String Service::GetAlias(void) const
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{
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String value = Get("alias");
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if (!value.IsEmpty())
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return value;
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return GetName();
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}
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bool Service::Exists(const String& name)
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{
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return (DynamicObject::GetObject("Service", name));
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}
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Service::Ptr Service::GetByName(const String& name)
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{
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DynamicObject::Ptr configObject = DynamicObject::GetObject("Service", name);
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if (!configObject)
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throw_exception(invalid_argument("Service '" + name + "' does not exist."));
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return dynamic_pointer_cast<Service>(configObject);
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}
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Host::Ptr Service::GetHost(void) const
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{
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String hostname = Get("host_name");
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if (hostname.IsEmpty())
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throw_exception(runtime_error("Service object is missing the 'host_name' property."));
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return Host::GetByName(hostname);
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}
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Dictionary::Ptr Service::GetMacros(void) const
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{
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return Get("macros");
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}
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String Service::GetCheckCommand(void) const
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{
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return Get("check_command");
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}
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long Service::GetMaxCheckAttempts(void) const
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{
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Value value = Get("max_check_attempts");
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if (value.IsEmpty())
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return DefaultMaxCheckAttempts;
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return value;
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}
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long Service::GetCheckInterval(void) const
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{
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Value value = Get("check_interval");
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if (value.IsEmpty())
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return DefaultCheckInterval;
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if (value < MinCheckInterval)
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value = MinCheckInterval;
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return value;
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}
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long Service::GetRetryInterval(void) const
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{
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Value value = Get("retry_interval");
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if (value.IsEmpty())
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return GetCheckInterval() / CheckIntervalDivisor;
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return value;
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}
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Dictionary::Ptr Service::GetDependencies(void) const
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{
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return Get("dependencies");
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}
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void Service::GetDependenciesRecursive(const Dictionary::Ptr& result) const {
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assert(result);
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Dictionary::Ptr dependencies = GetDependencies();
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if (!dependencies)
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return;
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Value dependency;
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BOOST_FOREACH(tie(tuples::ignore, dependency), dependencies) {
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if (result->Contains(dependency))
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continue;
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result->Set(dependency, dependency);
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Service::Ptr service = Service::GetByName(dependency);
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service->GetDependenciesRecursive(result);
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}
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}
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Dictionary::Ptr Service::GetGroups(void) const
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{
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return Get("servicegroups");
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}
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Dictionary::Ptr Service::GetCheckers(void) const
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{
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return Get("checkers");
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}
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bool Service::IsReachable(void) const
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{
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Dictionary::Ptr dependencies = boost::make_shared<Dictionary>();
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GetDependenciesRecursive(dependencies);
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Value dependency;
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BOOST_FOREACH(tie(tuples::ignore, dependency), dependencies) {
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Service::Ptr service = Service::GetByName(dependency);
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/* ignore ourselves */
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if (service->GetName() == GetName())
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continue;
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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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return true;
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}
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void Service::SetSchedulingOffset(long offset)
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{
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Set("scheduling_offset", offset);
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}
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long Service::GetSchedulingOffset(void)
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{
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Value value = Get("scheduling_offset");
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if (value.IsEmpty()) {
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value = rand();
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SetSchedulingOffset(value);
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}
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return value;
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}
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void Service::SetNextCheck(double nextCheck)
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{
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Set("next_check", nextCheck);
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}
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double Service::GetNextCheck(void)
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{
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Value value = Get("next_check");
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if (value.IsEmpty()) {
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UpdateNextCheck();
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value = Get("next_check");
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if (value.IsEmpty())
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throw_exception(runtime_error("Failed to schedule next check."));
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}
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return value;
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}
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void Service::UpdateNextCheck(void)
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{
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double interval;
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if (GetStateType() == StateTypeSoft)
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interval = GetRetryInterval();
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else
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interval = GetCheckInterval();
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double now = Utility::GetTime();
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double adj = fmod(now + GetSchedulingOffset(), interval);
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SetNextCheck(now - adj + interval);
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}
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void Service::SetChecker(const String& checker)
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{
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Set("checker", checker);
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}
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String Service::GetChecker(void) const
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{
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return Get("checker");
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}
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void Service::SetCurrentCheckAttempt(long attempt)
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{
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Set("check_attempt", attempt);
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}
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long Service::GetCurrentCheckAttempt(void) const
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{
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Value value = Get("check_attempt");
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if (value.IsEmpty())
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return 1;
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return value;
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}
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void Service::SetState(ServiceState state)
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{
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Set("state", static_cast<long>(state));
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}
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ServiceState Service::GetState(void) const
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{
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Value value = Get("state");
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if (value.IsEmpty())
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return StateUnknown;
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int ivalue = static_cast<int>(value);
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return static_cast<ServiceState>(ivalue);
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}
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void Service::SetStateType(ServiceStateType type)
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{
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Set("state_type", static_cast<long>(type));
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}
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ServiceStateType Service::GetStateType(void) const
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{
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Value value = Get("state_type");
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if (value.IsEmpty())
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return StateTypeHard;
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int ivalue = static_cast<int>(value);
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return static_cast<ServiceStateType>(ivalue);
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}
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void Service::SetLastCheckResult(const Dictionary::Ptr& result)
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{
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Set("last_result", result);
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}
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Dictionary::Ptr Service::GetLastCheckResult(void) const
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{
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return Get("last_result");
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}
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void Service::SetLastStateChange(double ts)
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{
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Set("last_state_change", static_cast<long>(ts));
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}
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double Service::GetLastStateChange(void) const
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{
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Value value = Get("last_state_change");
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if (value.IsEmpty())
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return IcingaApplication::GetInstance()->GetStartTime();
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return value;
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}
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void Service::SetLastHardStateChange(double ts)
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{
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Set("last_hard_state_change", ts);
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}
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double Service::GetLastHardStateChange(void) const
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{
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Value value = Get("last_hard_state_change");
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if (value.IsEmpty())
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value = IcingaApplication::GetInstance()->GetStartTime();
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return value;
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}
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void Service::ApplyCheckResult(const Dictionary::Ptr& cr)
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{
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ServiceState old_state = GetState();
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ServiceStateType old_stateType = GetStateType();
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long attempt = GetCurrentCheckAttempt();
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if (cr->Get("state") == StateOK) {
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if (GetState() == StateOK)
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SetStateType(StateTypeHard);
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attempt = 1;
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} else {
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if (attempt >= GetMaxCheckAttempts()) {
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SetStateType(StateTypeHard);
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attempt = 1;
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} else if (GetStateType() == StateTypeSoft || GetState() == StateOK) {
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SetStateType(StateTypeSoft);
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attempt++;
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}
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}
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SetCurrentCheckAttempt(attempt);
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int state = cr->Get("state");
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SetState(static_cast<ServiceState>(state));
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SetLastCheckResult(cr);
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if (old_state != GetState()) {
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double now = Utility::GetTime();
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SetLastStateChange(now);
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if (old_stateType != GetStateType())
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SetLastHardStateChange(now);
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}
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}
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ServiceState Service::StateFromString(const String& state)
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{
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if (state == "ok")
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return StateOK;
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else if (state == "warning")
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return StateWarning;
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else if (state == "critical")
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return StateCritical;
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else if (state == "uncheckable")
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return StateUncheckable;
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else
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return StateUnknown;
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}
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String Service::StateToString(ServiceState state)
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{
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switch (state) {
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case StateOK:
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return "ok";
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case StateWarning:
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return "warning";
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case StateCritical:
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return "critical";
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case StateUncheckable:
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return "uncheckable";
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case StateUnknown:
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default:
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return "unknown";
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}
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}
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ServiceStateType Service::StateTypeFromString(const String& type)
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{
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if (type == "soft")
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return StateTypeSoft;
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else
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return StateTypeHard;
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}
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String Service::StateTypeToString(ServiceStateType type)
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{
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if (type == StateTypeSoft)
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return "soft";
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else
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return "hard";
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}
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bool Service::IsAllowedChecker(const String& checker) const
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{
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Dictionary::Ptr checkers = GetCheckers();
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if (!checkers)
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return true;
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Value pattern;
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BOOST_FOREACH(tie(tuples::ignore, pattern), checkers) {
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if (Utility::Match(pattern, checker))
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return true;
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}
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return false;
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}
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Dictionary::Ptr Service::ResolveDependencies(const Host::Ptr& host, const Dictionary::Ptr& dependencies)
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{
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Dictionary::Ptr services = host->Get("services");
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Dictionary::Ptr result = boost::make_shared<Dictionary>();
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Value dependency;
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BOOST_FOREACH(tie(tuples::ignore, dependency), dependencies) {
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String name;
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if (services && services->Contains(dependency))
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name = host->GetName() + "-" + static_cast<String>(dependency);
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else
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name = static_cast<String>(dependency);
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result->Set(name, name);
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}
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return result;
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}
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void Service::OnAttributeChanged(const String& name, const Value& oldValue)
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{
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if (name == "checker")
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OnCheckerChanged(GetSelf(), oldValue);
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}
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