Introduce ConfigObject#get_attribute()

refs #8717

lib/base/configobject-script.cpp

@@ -4,10 +4,28 @@
 #include "base/dictionary.hpp"
 #include "base/function.hpp"
 #include "base/functionwrapper.hpp"
+#include "base/reference.hpp"
 #include "base/scriptframe.hpp"
 
 using namespace icinga;
 
+static bool ConfigObjectGetAttribute(const String& attr, const Reference::Ptr& result)
+{
+	ScriptFrame *vframe = ScriptFrame::GetCurrentFrame();
+	ConfigObject::Ptr self = vframe->Self;
+
+	REQUIRE_NOT_NULL(self);
+
+	Value temp;
+	bool ok = self->GetAttribute(attr, &temp);
+
+	if (ok && result) {
+		result->Set(temp);
+	}
+
+	return ok;
+}
+
 static void ConfigObjectModifyAttribute(const String& attr, const Value& value)
 {
 	ScriptFrame *vframe = ScriptFrame::GetCurrentFrame();
@@ -27,6 +45,7 @@ static void ConfigObjectRestoreAttribute(const String& attr)
 Object::Ptr ConfigObject::GetPrototype()
 {
 	static Dictionary::Ptr prototype = new Dictionary({
+		{ "get_attribute", new Function("ConfigObject#get_attribute", ConfigObjectGetAttribute, { "attr", "result" }, false) },
 		{ "modify_attribute", new Function("ConfigObject#modify_attribute", ConfigObjectModifyAttribute, { "attr", "value" }, false) },
 		{ "restore_attribute", new Function("ConfigObject#restore_attribute", ConfigObjectRestoreAttribute, { "attr", "value" }, false) }
 	});