C++ configitem::Ptr类代码示例

void ConfigType::ValidateItem(const ConfigItem::Ptr& item)
{
	/* Don't validate abstract items. */
	if (item->IsAbstract())
		return;

	Dictionary::Ptr attrs;
	DebugInfo debugInfo;
	String type, name;

	{
		ObjectLock olock(item);

		attrs = item->GetProperties();
		debugInfo = item->GetDebugInfo();
		type = item->GetType();
		name = item->GetName();
	}

	std::vector<String> locations;
	locations.push_back("Object '" + name + "' (Type: '" + type + "') at " + debugInfo.Path + ":" + Convert::ToString(debugInfo.FirstLine));

	std::vector<TypeRuleList::Ptr> ruleLists;
	AddParentRules(ruleLists, GetSelf());
	ruleLists.push_back(m_RuleList);

	ValidateDictionary(attrs, ruleLists, locations);
}

void ScheduledDowntime::EvaluateApplyRuleOneInstance(const Checkable::Ptr& checkable, const String& name, const Dictionary::Ptr& locals, const ApplyRule& rule)
{
	DebugInfo di = rule.GetDebugInfo();

	Log(LogDebug, "ScheduledDowntime")
		<< "Applying scheduled downtime '" << rule.GetName() << "' to object '" << checkable->GetName() << "' for rule " << di;

	ConfigItemBuilder::Ptr builder = new ConfigItemBuilder(di);
	builder->SetType("ScheduledDowntime");
	builder->SetName(name);
	builder->SetScope(locals);

	Host::Ptr host;
	Service::Ptr service;
	tie(host, service) = GetHostService(checkable);

	builder->AddExpression(new SetExpression(MakeIndexer("host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));

	if (service)
		builder->AddExpression(new SetExpression(MakeIndexer("service_name"), OpSetLiteral, MakeLiteral(service->GetShortName()), di));

	String zone = checkable->GetZone();

	if (!zone.IsEmpty()) {
		builder->AddExpression(new SetExpression(MakeIndexer("zone"), OpSetLiteral, MakeLiteral(zone), di));
	}

	builder->AddExpression(new OwnedExpression(rule.GetExpression()));

	ConfigItem::Ptr downtimeItem = builder->Compile();
	DynamicObject::Ptr dobj = downtimeItem->Commit();
	dobj->OnConfigLoaded();
}

bool Service::EvaluateApplyRuleInstance(const Host::Ptr& host, const String& name, ScriptFrame& frame, const ApplyRule& rule)
{
	if (!rule.EvaluateFilter(frame))
		return false;

	DebugInfo di = rule.GetDebugInfo();

	Log(LogDebug, "Service")
	    << "Applying service '" << name << "' to host '" << host->GetName() << "' for rule " << di;

	ConfigItemBuilder::Ptr builder = new ConfigItemBuilder(di);
	builder->SetType("Service");
	builder->SetName(name);
	builder->SetScope(frame.Locals->ShallowClone());
	builder->SetIgnoreOnError(rule.GetIgnoreOnError());

	builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));

	builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "name"), OpSetLiteral, MakeLiteral(name), di));

	String zone = host->GetZoneName();

	if (!zone.IsEmpty())
		builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "zone"), OpSetLiteral, MakeLiteral(zone), di));

	builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "package"), OpSetLiteral, MakeLiteral(rule.GetPackage()), di));

	builder->AddExpression(new OwnedExpression(rule.GetExpression()));

	ConfigItem::Ptr serviceItem = builder->Compile();
	serviceItem->Register();

	return true;
}

bool ServiceGroup::EvaluateObjectRule(const Service::Ptr& service, const ConfigItem::Ptr& group)
{
	String group_name = group->GetName();

	CONTEXT("Evaluating rule for group '" + group_name + "'");

	Host::Ptr host = service->GetHost();

	ScriptFrame frame;
	if (group->GetScope())
		group->GetScope()->CopyTo(frame.Locals);
	frame.Locals->Set("host", host);
	frame.Locals->Set("service", service);

	if (!group->GetFilter()->Evaluate(frame).GetValue().ToBool())
		return false;

	Log(LogDebug, "ServiceGroup")
	    << "Assigning membership for group '" << group_name << "' to service '" << service->GetName() << "'";

	Array::Ptr groups = service->GetGroups();
	groups->Add(group_name);

	return true;
}

ExpressionResult ImportExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
{
	if (frame.Sandboxed)
		BOOST_THROW_EXCEPTION(ScriptError("Imports are not allowed in sandbox mode.", m_DebugInfo));

	String type = VMOps::GetField(frame.Self, "type", frame.Sandboxed, m_DebugInfo);
	ExpressionResult nameres = m_Name->Evaluate(frame);
	CHECK_RESULT(nameres);
	Value name = nameres.GetValue();

	if (!name.IsString())
		BOOST_THROW_EXCEPTION(ScriptError("Template/object name must be a string", m_DebugInfo));

	ConfigItem::Ptr item = ConfigItem::GetByTypeAndName(Type::GetByName(type), name);

	if (!item)
		BOOST_THROW_EXCEPTION(ScriptError("Import references unknown template: '" + name + "'", m_DebugInfo));

	Dictionary::Ptr scope = item->GetScope();

	if (scope)
		scope->CopyTo(frame.Locals);

	ExpressionResult result = item->GetExpression()->Evaluate(frame, dhint);
	CHECK_RESULT(result);

	return Empty;
}

	static Dictionary::Ptr GetTargetForTemplate(const ConfigItem::Ptr& item)
	{
		Dictionary::Ptr target = new Dictionary();
		target->Set("name", item->GetName());
		target->Set("type", item->GetType());
		return target;
	}

	virtual bool ValidateName(const String& type, const String& name) const override
	{
		ConfigItem::Ptr item = ConfigItem::GetByTypeAndName(type, name);

		if (!item || (item && item->IsAbstract()))
			return false;

		return true;
	}

bool ConfigObjectUtility::DeleteObjectHelper(const ConfigObject::Ptr& object, bool cascade, const Array::Ptr& errors)
{
	std::vector<Object::Ptr> parents = DependencyGraph::GetParents(object);

	Type::Ptr type = object->GetReflectionType();

	if (!parents.empty() && !cascade) {
		if (errors)
			errors->Add("Object '" + object->GetName() + "' of type '" + type->GetName() +
			    "' cannot be deleted because other objects depend on it. "
			    "Use cascading delete to delete it anyway.");

		return false;
	}

	for (const Object::Ptr& pobj : parents) {
		ConfigObject::Ptr parentObj = dynamic_pointer_cast<ConfigObject>(pobj);

		if (!parentObj)
			continue;

		DeleteObjectHelper(parentObj, cascade, errors);
	}

	ConfigItem::Ptr item = ConfigItem::GetByTypeAndName(type, object->GetName());

	try {
		/* mark this object for cluster delete event */
		object->SetExtension("ConfigObjectDeleted", true);
		/* triggers signal for DB IDO and other interfaces */
		object->Deactivate(true);

		if (item)
			item->Unregister();
		else
			object->Unregister();

	} catch (const std::exception& ex) {
		if (errors)
			errors->Add(DiagnosticInformation(ex));

		return false;
	}

	String path = GetObjectConfigPath(object->GetReflectionType(), object->GetName());

	if (Utility::PathExists(path)) {
		if (unlink(path.CStr()) < 0 && errno != ENOENT) {
			BOOST_THROW_EXCEPTION(posix_error()
			    << boost::errinfo_api_function("unlink")
			    << boost::errinfo_errno(errno)
			    << boost::errinfo_file_name(path));
		}
	}

	return true;
}

	virtual Value GetTargetByName(const String& type, const String& name) const override
	{
		ConfigItem::Ptr item = ConfigItem::GetByTypeAndName(type, name);

		if (!item || !item->IsAbstract())
			BOOST_THROW_EXCEPTION(std::invalid_argument("Template does not exist."));

		return GetTargetForTemplate(item);
	}

bool Notification::EvaluateApplyRule(const Checkable::Ptr& checkable, const ApplyRule& rule)
{
	DebugInfo di = rule.GetDebugInfo();

	std::ostringstream msgbuf;
	msgbuf << "Evaluating 'apply' rule (" << di << ")";
	CONTEXT(msgbuf.str());

	Host::Ptr host;
	Service::Ptr service;
	tie(host, service) = GetHostService(checkable);

	Dictionary::Ptr locals = make_shared<Dictionary>();
	locals->Set("host", host);
	if (service)
		locals->Set("service", service);

	if (!rule.EvaluateFilter(locals))
		return false;

	std::ostringstream msgbuf2;
	msgbuf2 << "Applying notification '" << rule.GetName() << "' to object '" << checkable->GetName() << "' for rule " << di;
	Log(LogDebug, "icinga", msgbuf2.str());

	ConfigItemBuilder::Ptr builder = make_shared<ConfigItemBuilder>(di);
	builder->SetType("Notification");
	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));

	if (service) {
		builder->AddExpression(make_shared<AExpression>(&AExpression::OpSet,
		    make_shared<AExpression>(&AExpression::OpLiteral, "service_name", di),
		    make_shared<AExpression>(&AExpression::OpLiteral, service->GetShortName(), di),
		    di));
	}

	builder->AddExpression(rule.GetExpression());

	ConfigItem::Ptr notificationItem = builder->Compile();
	notificationItem->Register();
	DynamicObject::Ptr dobj = notificationItem->Commit();
	dobj->OnConfigLoaded();

	return true;
}

bool Dependency::EvaluateApplyRuleInstance(const Checkable::Ptr& checkable, const String& name, ScriptFrame& frame, const ApplyRule& rule)
{
	if (!rule.EvaluateFilter(frame))
		return false;

	DebugInfo di = rule.GetDebugInfo();

#ifdef _DEBUG
	Log(LogDebug, "Dependency")
		<< "Applying dependency '" << name << "' to object '" << checkable->GetName() << "' for rule " << di;
#endif /* _DEBUG */

	ConfigItemBuilder builder{di};
	builder.SetType(Dependency::TypeInstance);
	builder.SetName(name);
	builder.SetScope(frame.Locals->ShallowClone());
	builder.SetIgnoreOnError(rule.GetIgnoreOnError());

	Host::Ptr host;
	Service::Ptr service;
	tie(host, service) = GetHostService(checkable);

	builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "parent_host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));
	builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "child_host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));

	if (service)
		builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "child_service_name"), OpSetLiteral, MakeLiteral(service->GetShortName()), di));

	String zone = checkable->GetZoneName();

	if (!zone.IsEmpty())
		builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "zone"), OpSetLiteral, MakeLiteral(zone), di));

	builder.AddExpression(new SetExpression(MakeIndexer(ScopeThis, "package"), OpSetLiteral, MakeLiteral(rule.GetPackage()), di));

	builder.AddExpression(new ImportDefaultTemplatesExpression());

	builder.AddExpression(new OwnedExpression(rule.GetExpression()));

	ConfigItem::Ptr dependencyItem = builder.Compile();
	dependencyItem->Register();

	return true;
}

bool Dependency::EvaluateApplyRuleInstance(const Checkable::Ptr& checkable, const String& name, ScriptFrame& frame, const ApplyRule& rule)
{
	if (!rule.EvaluateFilter(frame))
		return false;

	DebugInfo di = rule.GetDebugInfo();

	Log(LogDebug, "Dependency")
		<< "Applying dependency '" << name << "' to object '" << checkable->GetName() << "' for rule " << di;

	ConfigItemBuilder::Ptr builder = new ConfigItemBuilder(di);
	builder->SetType("Dependency");
	builder->SetName(name);
	builder->SetScope(frame.Locals->ShallowClone());

	Host::Ptr host;
	Service::Ptr service;
	tie(host, service) = GetHostService(checkable);

	builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "parent_host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));
	builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "child_host_name"), OpSetLiteral, MakeLiteral(host->GetName()), di));

	if (service)
		builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "child_service_name"), OpSetLiteral, MakeLiteral(service->GetShortName()), di));

	String zone = checkable->GetZoneName();

	if (!zone.IsEmpty())
		builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "zone"), OpSetLiteral, MakeLiteral(zone), di));

	builder->AddExpression(new SetExpression(MakeIndexer(ScopeThis, "module"), OpSetLiteral, MakeLiteral(rule.GetModule()), di));
	
	builder->AddExpression(new OwnedExpression(rule.GetExpression()));

	ConfigItem::Ptr dependencyItem = builder->Compile();
	dependencyItem->Register();

	return true;
}

bool UserGroup::EvaluateObjectRule(const User::Ptr& user, const ConfigItem::Ptr& group)
{
	String group_name = group->GetName();

	CONTEXT("Evaluating rule for group '" + group_name + "'");

	ScriptFrame frame;
	if (group->GetScope())
		group->GetScope()->CopyTo(frame.Locals);
	frame.Locals->Set("user", user);

	if (!group->GetFilter()->Evaluate(frame).GetValue().ToBool())
		return false;

	Log(LogDebug, "UserGroup")
	    << "Assigning membership for group '" << group_name << "' to user '" << user->GetName() << "'";

	Array::Ptr groups = user->GetGroups();
	groups->Add(group_name);

	return true;
}

bool HostGroup::EvaluateObjectRule(const Host::Ptr& host, const ConfigItem::Ptr& group)
{
	String groupName = group->GetName();

	CONTEXT("Evaluating rule for group '" + groupName + "'");

	ScriptFrame frame(true);
	if (group->GetScope())
		group->GetScope()->CopyTo(frame.Locals);
	frame.Locals->Set("host", host);

	if (!group->GetFilter()->Evaluate(frame).GetValue().ToBool())
		return false;

	Log(LogDebug, "HostGroup")
		<< "Assigning membership for group '" << groupName << "' to host '" << host->GetName() << "'";

	Array::Ptr groups = host->GetGroups();

	if (groups && !groups->Contains(groupName))
		groups->Add(groupName);

	return true;
}

	static inline Value NewObject(ScriptFrame& frame, bool abstract, const String& type, const String& name, const boost::shared_ptr<Expression>& filter,
		const String& zone, std::map<String, Expression *> *closedVars, const boost::shared_ptr<Expression>& expression, const DebugInfo& debugInfo = DebugInfo())
	{
		ConfigItemBuilder::Ptr item = new ConfigItemBuilder(debugInfo);

		String checkName = name;

		if (!abstract) {
			Type::Ptr ptype = Type::GetByName(type);

			NameComposer *nc = dynamic_cast<NameComposer *>(ptype.get());

			if (nc)
				checkName = nc->MakeName(name, Dictionary::Ptr());
		}

		if (!checkName.IsEmpty()) {
			ConfigItem::Ptr oldItem = ConfigItem::GetObject(type, checkName);

			if (oldItem) {
				std::ostringstream msgbuf;
				msgbuf << "Object '" << name << "' of type '" << type << "' re-defined: " << debugInfo << "; previous definition: " << oldItem->GetDebugInfo();
				BOOST_THROW_EXCEPTION(ScriptError(msgbuf.str(), debugInfo));
			}
		}

		item->SetType(type);

		if (name.FindFirstOf("!") != String::NPos) {
			std::ostringstream msgbuf;
			msgbuf << "Name for object '" << name << "' of type '" << type << "' is invalid: Object names may not contain '!'";
			BOOST_THROW_EXCEPTION(ScriptError(msgbuf.str(), debugInfo));
		}

		item->SetName(name);

		item->AddExpression(new OwnedExpression(expression));
		item->SetAbstract(abstract);
		item->SetScope(EvaluateClosedVars(frame, closedVars));
		item->SetZone(zone);
		item->SetFilter(filter);
		item->Compile()->Register();

		return Empty;
	}