storage: Making use of SkipList-based index
Change-Id: I360af97ae794da383fe00aaad8ab3c417c5167d3
Refs: #1695, #1434
diff --git a/src/storage/storage.hpp b/src/storage/storage.hpp
new file mode 100755
index 0000000..04f366f
--- /dev/null
+++ b/src/storage/storage.hpp
@@ -0,0 +1,99 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDN repo-ng (Next generation of NDN repository).
+ * See AUTHORS.md for complete list of repo-ng authors and contributors.
+ *
+ * repo-ng 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.
+ *
+ * repo-ng 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
+ * repo-ng, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef REPO_STORAGE_STORAGE_HPP
+#define REPO_STORAGE_STORAGE_HPP
+#include <string>
+#include <iostream>
+#include <stdlib.h>
+#include "../common.hpp"
+
+namespace repo {
+
+/**
+ * @brief Storage is a virtual abstract class which will be called by SqliteStorage
+ */
+class Storage : noncopyable
+{
+public:
+ class Error : public std::runtime_error
+ {
+ public:
+ explicit
+ Error(const std::string& what)
+ : std::runtime_error(what)
+ {
+ }
+ };
+
+public:
+ class ItemMeta
+ {
+ public:
+ int64_t id;
+ Name fullName;
+ ndn::ConstBufferPtr keyLocatorHash;
+ };
+
+public :
+
+ virtual
+ ~Storage()
+ {
+ };
+
+ /**
+ * @brief put the data into database
+ * @param data the data should be inserted into databse
+ */
+ virtual int64_t
+ insert(const Data& data) = 0;
+
+ /**
+ * @brief remove the entry in the database by using id
+ * @param id id number of entry in the database
+ */
+ virtual bool
+ erase(const int64_t id) = 0;
+
+ /**
+ * @brief get the data from database
+ * @param id id number of each entry in the database, used to find the data
+ */
+ virtual shared_ptr<Data>
+ read(const int64_t id) = 0;
+
+ /**
+ * @brief return the size of database
+ */
+ virtual int64_t
+ size() = 0;
+
+ /**
+ * @brief enumerate each entry in database and call the function
+ * insertItemToIndex to reubuild index from database
+ */
+ virtual void
+ fullEnumerate(const ndn::function<void(const Storage::ItemMeta)>& f) = 0;
+
+};
+
+} // namespace repo
+
+#endif // REPO_STORAGE_Storage_HPP