icinga2/lib/config/applyrule.cpp

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/******************************************************************************
* Icinga 2 *
2014-04-23 15:57:58 +02:00
* 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. *
******************************************************************************/
2014-05-25 16:23:35 +02:00
#include "config/applyrule.hpp"
#include "base/logger_fwd.hpp"
#include <boost/foreach.hpp>
#include <set>
using namespace icinga;
ApplyRule::RuleMap ApplyRule::m_Rules;
ApplyRule::CallbackMap ApplyRule::m_Callbacks;
ApplyRule::ApplyRule(const String& targetType, const String& name, const AExpression::Ptr& expression,
const AExpression::Ptr& filter, const DebugInfo& di, const Dictionary::Ptr& scope)
: m_TargetType(targetType), m_Name(name), m_Expression(expression), m_Filter(filter), m_DebugInfo(di), m_Scope(scope)
{ }
String ApplyRule::GetTargetType(void) const
{
return m_TargetType;
}
String ApplyRule::GetName(void) const
{
return m_Name;
}
AExpression::Ptr ApplyRule::GetExpression(void) const
{
return m_Expression;
}
AExpression::Ptr ApplyRule::GetFilter(void) const
{
return m_Filter;
}
DebugInfo ApplyRule::GetDebugInfo(void) const
{
return m_DebugInfo;
}
Dictionary::Ptr ApplyRule::GetScope(void) const
{
return m_Scope;
}
void ApplyRule::AddRule(const String& sourceType, const String& targetType, const String& name,
const AExpression::Ptr& expression, const AExpression::Ptr& filter,
const DebugInfo& di, const Dictionary::Ptr& scope)
{
m_Rules[sourceType].push_back(ApplyRule(targetType, name, expression, filter, di, scope));
}
bool ApplyRule::EvaluateFilter(const Dictionary::Ptr& scope) const
{
scope->Set("__parent", m_Scope);
bool result = m_Filter->Evaluate(scope);
scope->Remove("__parent");
return result;
}
void ApplyRule::EvaluateRules(bool clear)
{
std::set<String> completedTypes;
while (completedTypes.size() < m_Callbacks.size()) {
std::pair<String, std::pair<Callback, std::vector<String> > > kv;
BOOST_FOREACH(kv, m_Callbacks) {
const String& sourceType = kv.first;
if (completedTypes.find(sourceType) != completedTypes.end())
continue;
const Callback& callback = kv.second.first;
const std::vector<String>& targetTypes = kv.second.second;
bool cont = false;
BOOST_FOREACH(const String& targetType, targetTypes) {
if (IsValidSourceType(targetType) && completedTypes.find(targetType) == completedTypes.end()) {
cont = true;
break;
}
}
if (cont)
continue;
completedTypes.insert(sourceType);
RuleMap::const_iterator it = m_Rules.find(kv.first);
if (it == m_Rules.end())
continue;
callback(it->second);
}
}
if (clear)
m_Rules.clear();
}
void ApplyRule::RegisterType(const String& sourceType, const std::vector<String>& targetTypes, const ApplyRule::Callback& callback)
{
m_Callbacks[sourceType] = make_pair(callback, targetTypes);
}
bool ApplyRule::IsValidSourceType(const String& sourceType)
{
return m_Callbacks.find(sourceType) != m_Callbacks.end();
}
bool ApplyRule::IsValidTargetType(const String& sourceType, const String& targetType)
{
CallbackMap::const_iterator it = m_Callbacks.find(sourceType);
if (it == m_Callbacks.end())
return false;
if (it->second.second.size() == 1 && targetType == "")
return true;
BOOST_FOREACH(const String& type, it->second.second) {
if (type == targetType)
return true;
}
return false;
}
std::vector<String> ApplyRule::GetTargetTypes(const String& sourceType)
{
CallbackMap::const_iterator it = m_Callbacks.find(sourceType);
if (it == m_Callbacks.end())
return std::vector<String>();
return it->second.second;
}