add policy checker
Change-Id: I90c50d15b1d9d97832c66ce90e39524729f12a0f
diff --git a/core/conf/rule.hpp b/core/conf/rule.hpp
new file mode 100644
index 0000000..5ec229f
--- /dev/null
+++ b/core/conf/rule.hpp
@@ -0,0 +1,73 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California
+ *
+ * This file is part of NSL (NDN Signature Logger).
+ * See AUTHORS.md for complete list of NSL authors and contributors.
+ *
+ * NSL is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NSL is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * NSL, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of nsl authors and contributors.
+ */
+
+#ifndef NSL_CONF_RULE_HPP
+#define NSL_CONF_RULE_HPP
+
+#include "filter.hpp"
+#include "checker.hpp"
+
+namespace nsl {
+namespace conf {
+
+class Rule
+{
+public:
+ explicit
+ Rule(const std::string& id);
+
+ virtual
+ ~Rule();
+
+ const std::string&
+ getId();
+
+ void
+ addFilter(const shared_ptr<Filter>& filter);
+
+ void
+ addChecker(const shared_ptr<Checker>& checker);
+
+ bool
+ match(const Data& data);
+
+ /**
+ * @brief check if data satisfies certain condition
+ *
+ * @param packet The packet
+ * @return false if data is immediately invalid
+ */
+ bool
+ check(const Data& data);
+
+private:
+ typedef std::vector<shared_ptr<Filter> > FilterList;
+ typedef std::vector<shared_ptr<Checker> > CheckerList;
+
+ std::string m_id;
+ FilterList m_filters;
+ CheckerList m_checkers;
+};
+
+} // namespace conf
+} // namespace nsl
+
+#endif // NSL_CONF_RULE_HPP