Only allow to specify the common base path

include/storage/storage.hpp

@@ -1,24 +1,24 @@
 #ifndef STORAGE_HPP
 #define STORAGE_HPP
 
+#include "storage/storage_config.hpp"
+
 #include <boost/filesystem/path.hpp>
 
-#include <unordered_map>
 #include <string>
 
 namespace osrm
 {
 namespace storage
 {
-using DataPaths = std::unordered_map<std::string, boost::filesystem::path>;
 class Storage
 {
   public:
-    Storage(const DataPaths &data_paths);
+    Storage(StorageConfig config);
     int Run();
 
   private:
-    DataPaths paths;
+    StorageConfig config;
 };
 }
 }

include/storage/storage_config.hpp

@@ -0,0 +1,34 @@
+#ifndef STORAGE_CONFIG_HPP
+#define STORAGE_CONFIG_HPP
+
+#include <boost/filesystem/path.hpp>
+
+#include <string>
+
+namespace osrm
+{
+namespace storage
+{
+struct StorageConfig
+{
+    StorageConfig() = default;
+    StorageConfig(const boost::filesystem::path &base);
+    bool IsValid() const;
+
+    std::string ram_index_path;
+    std::string file_index_path;
+    std::string hsgr_data_path;
+    std::string nodes_data_path;
+    std::string edges_data_path;
+    std::string core_data_path;
+    std::string geometries_path;
+    std::string timestamp_path;
+    std::string datasource_names_path;
+    std::string datasource_indexes_path;
+    std::string names_data_path;
+    std::string properties_path;
+};
+}
+}
+
+#endif