Integrate CellStorage into datafacade

include/partition/io.hpp

@@ -3,6 +3,7 @@
 
 #include "storage/io.hpp"
 #include "util/multi_level_partition.hpp"
+#include "util/cell_storage.hpp"
 
 namespace osrm
 {
@@ -21,6 +22,20 @@ inline void write(const boost::filesystem::path &path, const util::MultiLevelPar
     writer.SerializeVector(mlp.partition);
     writer.SerializeVector(mlp.cell_to_children);
 }
+
+template <>
+inline void write(const boost::filesystem::path &path, const util::CellStorage &storage)
+{
+    const auto fingerprint = storage::io::FileWriter::GenerateFingerprint;
+    storage::io::FileWriter writer{path, fingerprint};
+
+    writer.SerializeVector(storage.weights);
+    writer.SerializeVector(storage.source_boundary);
+    writer.SerializeVector(storage.destination_boundary);
+    writer.SerializeVector(storage.cells);
+    writer.SerializeVector(storage.level_to_cell_offset);
+}
+
 }
 }
 }