update20140630

uni/masterarbeit/source/moversight/common/validator/MessageValidator.h

@@ -0,0 +1,73 @@
+/*
+ * File:   MessageValidator.h
+ * Author: jgaebler
+ *
+ * Created on May 11, 2011, 3:20 PM
+ */
+#pragma once
+
+#ifndef MESSAGEVALIDATOR_H
+#define	MESSAGEVALIDATOR_H
+
+#include "Dispatcher.h"
+#include "ms/MembershipService.h"
+
+namespace ubeeme {
+    namespace moversight {
+
+        class MoversightMessage;
+        class ExteriorMessage;
+        class MulticastMessage;
+
+        /**
+         * @class MessageValidator
+         * @author Jan Gäbler
+         * @ingroup Moversight
+         * @brief Defines an abstract interface to a message validator, that
+         * decides whether to process a received message or to drop it.
+         */
+        class MessageValidator {
+        public:
+            /**
+             * @brief Constructor
+             * @param dis A reference to the dispatcher.
+             */
+            MessageValidator( Dispatcher& dis) : dispatcher(dis), membershipService( dis.getMembershipService()) {
+            }
+
+            /**
+             * @brief Destructor
+             */
+            virtual ~MessageValidator(){
+            }
+
+            /**
+             * @brief Checks, if the received interior message valid within the current group.
+             * @param msg The message to validate.
+             * @return True, if the received message checked as valid message within the current group, false otherwise.
+             */
+            virtual bool isValid( const MoversightMessage & msg) const = 0;
+
+            /**
+             * @brief Checks, if the received multicast message valid within the current view, or not.
+             * @param msg The message to validate.
+             * @return True, if the received message checked as valid message within the current view, false otherwise.
+             */
+            virtual bool isValid( const MulticastMessage & msg) const = 0;
+
+            /**
+             * @brief Checks, if the received exterior message valid within the current view, or not.
+             * @param msg The message to validate.
+             * @return True, if the received message checked as valid message within the current view, false otherwise.
+             */
+            virtual bool isValid( const ExteriorMessage & msg) const = 0;
+
+        protected:
+            Dispatcher & dispatcher;
+            MembershipService& membershipService;
+        };
+    }
+}
+
+#endif	/* MESSAGEVALIDATOR_H */
+