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+/**
+ * @file configurator.hpp
+ *
+ * @brief settingsd configuration manager header.
+ *
+ * @author Ossama Othman @<ossama.othman@@intel.com@>
+ *
+ * @copyright @par
+ * Copyright 2012, 2013 Intel Corporation All Rights Reserved.
+ * @par
+ * 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;
+ * version 2.1 of the License.
+ * @par
+ * 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.
+ * @par
+ * 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  02110-1301  USA
+ *
+ * @note This is an internal header.
+ */
+
+#ifndef IVI_SETTINGS_CONFIGURATOR_HPP
+#define IVI_SETTINGS_CONFIGURATOR_HPP
+
+#include <string>
+#include <boost/program_options.hpp>
+
+
+namespace ivi {
+  namespace settings{
+    /**
+     * @class configurator
+     *
+     * @brief Settingsd configuration manager
+     *
+     * The @c configurator class parses command line and file based
+     * settingsd configuration options.
+     */
+    class configurator
+    {
+    public:
+
+      /// Constructor.
+      configurator(int & argc, char * argv[], char const * logger_name);
+
+      /// Get directory containing the settings plugins.
+      std::string settings_dir() const;
+
+      /// The port on which the web socket server should listen.
+      int websocket_port() const;
+
+
+      /// Websocket server SSL certificate file.
+      char const * ssl_cert_file() const;
+
+      /// Websocket server SSL private key file.
+      char const * ssl_private_key_file() const;
+
+      /// Websocket server SSL CA certificate file.
+      char const * ssl_ca_file() const;
+
+    private:
+
+      /**
+       * @name Prevent copying
+       */
+      //@{
+      configurator(configurator const &) = delete;
+      configurator & operator=(configurator const &) = delete;
+      //@}
+
+      /**
+       * @brief Parse the settingsd configuration.
+       *
+       * Configuration options are obtained from the command line, the
+       * user configuration file and the system configuration file, in
+       * order of decreasing precedence.
+       */
+      void parse_config(int & argc, char * argv[]);
+
+      /// Display settingsd's version and copyright notices.
+      void display_version_info() const;
+
+      /// Configure the underlying logger.
+      void configure_logger(char const * logger_name);
+
+      /// Set the log level in the underlying logger.
+      void set_log_level();
+
+      /**
+       * libwebsockets wants a @c nullptr for SSL certificate/key
+       * paths if they won't be used.
+       *
+       * @param[in] option SSL certificate relate program option.
+       *
+       * @returns C string if @a option is not empty, @c nullptr
+       *          otherwise.
+       */
+      char const * libwebsocket_ssl_filepath(
+        std::string const & option) const;
+
+    private:
+
+      /// Map of settingsd program options.
+      boost::program_options::variables_map vm_;
+
+    };
+  }
+}
+
+#endif  /* IVI_SETTINGS_CONFIGURATOR_HPP */
+
+
+// Local Variables:
+// mode:c++
+// c-basic-offset:2
+// indent-tabs-mode: nil
+// End: