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diff --git a/storage/mroonga/lib/mrn_path_mapper.hpp b/storage/mroonga/lib/mrn_path_mapper.hpp
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+/* -*- c-basic-offset: 2 -*- */
+/*
+  Copyright(C) 2010 Tetsuro IKEDA
+  Copyright(C) 2010-2013 Kentoku SHIBA
+  Copyright(C) 2011-2015 Kouhei Sutou <kou@clear-code.com>
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
+*/
+
+#ifndef MRN_PATH_MAPPER_HPP_
+#define MRN_PATH_MAPPER_HPP_
+
+#include <mrn_constants.hpp>
+
+namespace mrn {
+  class PathMapper {
+  public:
+    static char *default_path_prefix;
+    static char *default_mysql_data_home_path;
+
+    PathMapper(const char *original_mysql_path,
+               const char *path_prefix=default_path_prefix,
+               const char *mysql_data_home_path=default_mysql_data_home_path);
+    const char *db_path();
+    const char *db_name();
+    const char *table_name();
+    const char *mysql_table_name();
+    const char *mysql_path();
+    bool is_internal_table_name();
+    bool is_temporary_table_name();
+  private:
+    const char *original_mysql_path_;
+    const char *path_prefix_;
+    const char *mysql_data_home_path_;
+    char db_path_[MRN_MAX_PATH_SIZE];
+    char db_name_[MRN_MAX_PATH_SIZE];
+    char table_name_[MRN_MAX_PATH_SIZE];
+    char mysql_table_name_[MRN_MAX_PATH_SIZE];
+    char mysql_path_[MRN_MAX_PATH_SIZE];
+  };
+}
+
+#endif /* MRN_PATH_MAPPER_HPP_ */