1 files changed, 199 insertions, 0 deletions
diff --git a/lib/config/applyrule.cpp b/lib/config/applyrule.cpp
new file mode 100644
index 0000000..5cfbf9e
--- /dev/null
+++ b/lib/config/applyrule.cpp
@@ -0,0 +1,199 @@
+/* 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;
+}
+
+String ApplyRule::GetFKVar() const
+{
+	return m_FKVar;
+}
+
+String ApplyRule::GetFVVar() const
+{
+	return m_FVVar;
+}
+
+Expression::Ptr ApplyRule::GetFTerm() const
+{
+	return m_FTerm;
+}
+
+bool ApplyRule::GetIgnoreOnError() const
+{
+	return m_IgnoreOnError;
+}
+
+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 = true;
+}
+
+bool ApplyRule::HasMatches() const
+{
+	return m_HasMatches;
+}
+
+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!";
+	}
+}