icinga2/lib/icinga/service-apply.cpp

110 lines
4.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "icinga/service.h"
#include "config/configitembuilder.h"
#include "config/applyrule.h"
#include "base/initialize.h"
#include "base/dynamictype.h"
#include "base/logger_fwd.h"
#include "base/context.h"
#include <boost/foreach.hpp>
using namespace icinga;
INITIALIZE_ONCE(&Service::RegisterApplyRuleHandler);
void Service::RegisterApplyRuleHandler(void)
{
std::vector<String> targets;
targets.push_back("Host");
ApplyRule::RegisterType("Service", targets, &Service::EvaluateApplyRules);
}
bool Service::EvaluateApplyRule(const Host::Ptr& host, const ApplyRule& rule)
{
DebugInfo di = rule.GetDebugInfo();
std::ostringstream msgbuf;
msgbuf << "Evaluating 'apply' rule (" << di << ")";
CONTEXT(msgbuf.str());
Dictionary::Ptr locals = make_shared<Dictionary>();
locals->Set("host", host);
if (!rule.EvaluateFilter(locals))
return false;
std::ostringstream msgbuf2;
msgbuf2 << "Applying service '" << rule.GetName() << "' to host '" << host->GetName() << "' for rule " << di;
Log(LogDebug, "icinga", msgbuf2.str());
ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
builder->SetType("Service");
builder->SetName(rule.GetName());
builder->SetScope(rule.GetScope());
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
make_shared<AExpression>(&AExpression::OpLiteral, "host_name", di),
make_shared<AExpression>(&AExpression::OpLiteral, host->GetName(), di),
di));
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
make_shared<AExpression>(&AExpression::OpLiteral, "name", di),
make_shared<AExpression>(&AExpression::OpLiteral, rule.GetName(), di),
di));
String zone = host->GetZone();
if (!zone.IsEmpty()) {
builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
make_shared<AExpression>(&AExpression::OpLiteral, "zone", di),
make_shared<AExpression>(&AExpression::OpLiteral, zone, di),
di));
}
builder->AddExpression(rule.GetExpression());
ConfigItem::Ptr serviceItem = builder->Compile();
serviceItem->Register();
DynamicObject::Ptr dobj = serviceItem->Commit();
dobj->OnConfigLoaded();
return true;
}
void Service::EvaluateApplyRules(const std::vector<ApplyRule>& rules)
{
int apply_count = 0;
BOOST_FOREACH(const ApplyRule& rule, rules) {
apply_count = 0;
BOOST_FOREACH(const Host::Ptr& host, DynamicType::GetObjects<Host>()) {
CONTEXT("Evaluating 'apply' rules for host '" + host->GetName() + "'");
if (EvaluateApplyRule(host, rule))
apply_count++;
}
if (apply_count == 0)
Log(LogWarning, "icinga", "Apply rule '" + rule.GetName() + "' for host does not match anywhere!");
}
}