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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#include "config/applyrule.hpp"
#include "base/logger.hpp"
#include <set>
#include <unordered_set>
using namespace icinga;
ApplyRule::RuleMap ApplyRule::m_Rules;
ApplyRule::TypeMap ApplyRule::m_Types;
ApplyRule::ApplyRule(String name, Expression::Ptr expression,
Expression::Ptr filter, String package, String fkvar, String fvvar, Expression::Ptr fterm,
bool ignoreOnError, DebugInfo di, Dictionary::Ptr scope)
: m_Name(std::move(name)), m_Expression(std::move(expression)), m_Filter(std::move(filter)), m_Package(std::move(package)), m_FKVar(std::move(fkvar)),
m_FVVar(std::move(fvvar)), m_FTerm(std::move(fterm)), m_IgnoreOnError(ignoreOnError), m_DebugInfo(std::move(di)), m_Scope(std::move(scope)), m_HasMatches(false)
{ }
String ApplyRule::GetName() const
{
return m_Name;
}
Expression::Ptr ApplyRule::GetExpression() const
{
return m_Expression;
}
Expression::Ptr ApplyRule::GetFilter() const
{
return m_Filter;
}
String ApplyRule::GetPackage() const
{
return m_Package;
}
Expression::Ptr ApplyRule::GetFTerm() const
{
return m_FTerm;
}
bool ApplyRule::GetIgnoreOnError() const
{
return m_IgnoreOnError;
}
const DebugInfo& ApplyRule::GetDebugInfo() const
{
return m_DebugInfo;
}
Dictionary::Ptr ApplyRule::GetScope() const
{
return m_Scope;
}
void ApplyRule::AddRule(const String& sourceType, const String& targetType, const String& name,
const Expression::Ptr& expression, const Expression::Ptr& filter, const String& package, const String& fkvar,
const String& fvvar, const Expression::Ptr& fterm, bool ignoreOnError, const DebugInfo& di, const Dictionary::Ptr& scope)
{
auto actualTargetType (&targetType);
if (*actualTargetType == "") {
auto& targetTypes (GetTargetTypes(sourceType));
if (targetTypes.size() == 1u) {
actualTargetType = &targetTypes[0];
}
}
ApplyRule::Ptr rule = new ApplyRule(name, expression, filter, package, fkvar, fvvar, fterm, ignoreOnError, di, scope);
auto& rules (m_Rules[Type::GetByName(sourceType).get()]);
if (!AddTargetedRule(rule, *actualTargetType, rules)) {
rules.Regular[Type::GetByName(*actualTargetType).get()].emplace_back(std::move(rule));
}
}
bool ApplyRule::EvaluateFilter(ScriptFrame& frame) const
{
return Convert::ToBool(m_Filter->Evaluate(frame));
}
void ApplyRule::RegisterType(const String& sourceType, const std::vector<String>& targetTypes)
{
m_Types[sourceType] = targetTypes;
}
bool ApplyRule::IsValidSourceType(const String& sourceType)
{
return m_Types.find(sourceType) != m_Types.end();
}
bool ApplyRule::IsValidTargetType(const String& sourceType, const String& targetType)
{
auto it = m_Types.find(sourceType);
if (it == m_Types.end())
return false;
if (it->second.size() == 1 && targetType == "")
return true;
for (const String& type : it->second) {
if (type == targetType)
return true;
}
return false;
}
const std::vector<String>& ApplyRule::GetTargetTypes(const String& sourceType)
{
auto it = m_Types.find(sourceType);
if (it == m_Types.end()) {
static const std::vector<String> noTypes;
return noTypes;
}
return it->second;
}
void ApplyRule::AddMatch()
{
m_HasMatches.store(true, std::memory_order_relaxed);
}
bool ApplyRule::HasMatches() const
{
return m_HasMatches.load(std::memory_order_relaxed);
}
const std::vector<ApplyRule::Ptr>& ApplyRule::GetRules(const Type::Ptr& sourceType, const Type::Ptr& targetType)
{
auto perSourceType (m_Rules.find(sourceType.get()));
if (perSourceType != m_Rules.end()) {
auto perTargetType (perSourceType->second.Regular.find(targetType.get()));
if (perTargetType != perSourceType->second.Regular.end()) {
return perTargetType->second;
}
}
static const std::vector<ApplyRule::Ptr> noRules;
return noRules;
}
void ApplyRule::CheckMatches(bool silent)
{
for (auto& perSourceType : m_Rules) {
for (auto& perTargetType : perSourceType.second.Regular) {
for (auto& rule : perTargetType.second) {
CheckMatches(rule, perSourceType.first, silent);
}
}
std::unordered_set<ApplyRule*> targeted;
for (auto& perHost : perSourceType.second.Targeted) {
for (auto& rule : perHost.second.ForHost) {
targeted.emplace(rule.get());
}
for (auto& perService : perHost.second.ForServices) {
for (auto& rule : perService.second) {
targeted.emplace(rule.get());
}
}
}
for (auto rule : targeted) {
CheckMatches(rule, perSourceType.first, silent);
}
}
}
void ApplyRule::CheckMatches(const ApplyRule::Ptr& rule, Type* sourceType, bool silent)
{
if (!rule->HasMatches() && !silent) {
Log(LogWarning, "ApplyRule")
<< "Apply rule '" << rule->GetName() << "' (" << rule->GetDebugInfo() << ") for type '"
<< sourceType->GetName() << "' does not match anywhere!";
}
}
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