mirror of
https://github.com/Icinga/icinga2.git
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118 lines
4.3 KiB
C++
118 lines
4.3 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-present 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/dependency.h"
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#include "icinga/service.h"
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#include "config/configitembuilder.h"
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#include "base/initialize.h"
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#include "base/dynamictype.h"
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#include "base/convert.h"
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#include "base/logger_fwd.h"
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#include "base/context.h"
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#include <boost/foreach.hpp>
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using namespace icinga;
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INITIALIZE_ONCE(&Dependency::RegisterApplyRuleHandler);
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void Dependency::RegisterApplyRuleHandler(void)
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{
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std::vector<String> targets;
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targets.push_back("Host");
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targets.push_back("Service");
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ApplyRule::RegisterType("Dependency", targets, &Dependency::EvaluateApplyRules);
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}
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void Dependency::EvaluateApplyRule(const Checkable::Ptr& checkable, const ApplyRule& rule)
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{
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DebugInfo di = rule.GetDebugInfo();
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std::ostringstream msgbuf;
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msgbuf << "Evaluating 'apply' rule (" << di << ")";
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CONTEXT(msgbuf.str());
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Host::Ptr host;
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Service::Ptr service;
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tie(host, service) = GetHostService(checkable);
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Dictionary::Ptr locals = make_shared<Dictionary>();
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locals->Set("host", host);
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if (service)
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locals->Set("service", service);
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if (!rule.EvaluateFilter(locals))
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return;
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std::ostringstream msgbuf2;
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msgbuf2 << "Applying dependency '" << rule.GetName() << "' to object '" << checkable->GetName() << "' for rule " << di;
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Log(LogDebug, "icinga", msgbuf2.str());
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std::ostringstream namebuf;
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namebuf << checkable->GetName() << "!" << rule.GetName();
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String name = namebuf.str();
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ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
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builder->SetType("Dependency");
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builder->SetName(name);
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builder->SetScope(rule.GetScope());
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builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
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make_shared<AExpression>(&AExpression::OpLiteral, "child_host_name", di),
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make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(),
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di), di));
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if (service) {
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builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
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make_shared<AExpression>(&AExpression::OpLiteral, "child_service_name", di),
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make_shared<AExpression>(&AExpression::OpLiteral, service->GetShortName(), di), di));
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}
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builder->AddExpression(rule.GetExpression());
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ConfigItem::Ptr dependencyItem = builder->Compile();
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dependencyItem->Register();
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DynamicObject::Ptr dobj = dependencyItem->Commit();
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dobj->OnConfigLoaded();
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}
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void Dependency::EvaluateApplyRules(const std::vector<ApplyRule>& rules)
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{
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BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjects<Host>()) {
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CONTEXT("Evaluating 'apply' rules for host '" + host->GetName() + "'");
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BOOST_FOREACH(const ApplyRule& rule, rules) {
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if (rule.GetTargetType() != "Host")
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continue;
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EvaluateApplyRule(host, rule);
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}
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}
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BOOST_FOREACH(const Service::Ptr& service, DynamicType::GetObjects<Service>()) {
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CONTEXT("Evaluating 'apply' rules for Service '" + service->GetName() + "'");
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BOOST_FOREACH(const ApplyRule& rule, rules) {
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if (rule.GetTargetType() != "Service")
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continue;
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EvaluateApplyRule(service, rule);
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}
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}
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}
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