mirror of https://github.com/Icinga/icinga2.git
91 lines
3.7 KiB
C++
91 lines
3.7 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/host.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(&Host::RegisterApplyRuleHandler);
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void Host::RegisterApplyRuleHandler(void)
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{
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ApplyRule::RegisterCombination("Service", "Host", &Host::EvaluateApplyRules);
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}
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void Host::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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Dictionary::Ptr locals = make_shared<Dictionary>();
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locals->Set("host", host->GetName());
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Array::Ptr groups = host->GetGroups();
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if (!groups)
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groups = make_shared<Array>();
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locals->Set("hostgroups", groups);
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BOOST_FOREACH(const ApplyRule& rule, rules) {
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std::ostringstream msgbuf;
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msgbuf << "Evaluating 'apply' rule (" << rule.GetDebugInfo() << ")";
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CONTEXT(msgbuf.str());
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Value result = rule.GetExpression()->Evaluate(locals);
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try {
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if (!static_cast<bool>(result))
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continue;
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} catch (...) {
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std::ostringstream msgbuf;
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msgbuf << "Apply rule (" << rule.GetDebugInfo() << ") returned invalid data type, expected bool: " + JsonSerialize(result);
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Log(LogCritical, "icinga", msgbuf.str());
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continue;
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}
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std::ostringstream msgbuf2;
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msgbuf2 << "Applying service template '" << rule.GetTemplate() << "' to host '" << host->GetName() << "' for rule " << rule.GetDebugInfo();
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Log(LogDebug, "icinga", msgbuf2.str());
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std::ostringstream namebuf;
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namebuf << host->GetName() << "!apply!" << rule.GetTemplate();
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String name = namebuf.str();
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ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(rule.GetDebugInfo());
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builder->SetType("Service");
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builder->SetName(name);
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builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet, "host", make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(), rule.GetDebugInfo()), rule.GetDebugInfo()));
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builder->AddParent(rule.GetTemplate());
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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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}
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