mirror of https://github.com/Icinga/icinga2.git
125 lines
4.5 KiB
C++
125 lines
4.5 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2014 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/service.hpp"
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#include "config/configitembuilder.hpp"
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#include "config/applyrule.hpp"
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#include "config/configcompilercontext.hpp"
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#include "base/initialize.hpp"
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#include "base/dynamictype.hpp"
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#include "base/logger.hpp"
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#include "base/context.hpp"
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#include "base/workqueue.hpp"
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#include "base/configerror.hpp"
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#include <boost/foreach.hpp>
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using namespace icinga;
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INITIALIZE_ONCE(&Service::RegisterApplyRuleHandler);
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void Service::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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ApplyRule::RegisterType("Service", targets, &Service::EvaluateApplyRules);
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}
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bool Service::EvaluateApplyRuleOne(const Host::Ptr& host, 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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Dictionary::Ptr locals = make_shared<Dictionary>();
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locals->Set("host", host);
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if (!rule.EvaluateFilter(locals))
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return false;
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Log(LogDebug, "Service")
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<< "Applying service '" << rule.GetName() << "' to host '" << host->GetName() << "' for rule " << di;
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ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
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builder->SetType("Service");
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builder->SetName(rule.GetName());
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builder->SetScope(rule.GetScope());
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builder->AddExpression(make_shared<Expression>(&Expression::OpSet,
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make_shared<Expression>(&Expression::OpLiteral, "host_name", di),
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make_shared<Expression>(&Expression::OpLiteral, host->GetName(), di),
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di));
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builder->AddExpression(make_shared<Expression>(&Expression::OpSet,
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make_shared<Expression>(&Expression::OpLiteral, "name", di),
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make_shared<Expression>(&Expression::OpLiteral, rule.GetName(), di),
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di));
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String zone = host->GetZone();
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if (!zone.IsEmpty()) {
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builder->AddExpression(make_shared<Expression>(&Expression::OpSet,
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make_shared<Expression>(&Expression::OpLiteral, "zone", di),
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make_shared<Expression>(&Expression::OpLiteral, zone, di),
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di));
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}
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builder->AddExpression(rule.GetExpression());
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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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return true;
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}
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void Service::EvaluateApplyRule(const ApplyRule& rule)
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{
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int apply_count = 0;
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BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjectsByType<Host>()) {
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CONTEXT("Evaluating 'apply' rules for host '" + host->GetName() + "'");
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try {
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if (EvaluateApplyRuleOne(host, rule))
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apply_count++;
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} catch (const ConfigError& ex) {
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const DebugInfo *di = boost::get_error_info<errinfo_debuginfo>(ex);
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ConfigCompilerContext::GetInstance()->AddMessage(true, ex.what(), di ? *di : DebugInfo());
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}
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}
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if (apply_count == 0)
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Log(LogWarning, "Service")
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<< "Apply rule '" << rule.GetName() << "' for host does not match anywhere!";
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}
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void Service::EvaluateApplyRules(const std::vector<ApplyRule>& rules)
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{
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ParallelWorkQueue upq;
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BOOST_FOREACH(const ApplyRule& rule, rules) {
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upq.Enqueue(boost::bind(&Service::EvaluateApplyRule, boost::cref(rule)));
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}
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upq.Join();
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}
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