metadata serialization done

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-authors = [ "Ángel Iglesias Préstamo <[email protected]>" ]
+authors = [ "Ángel Iglesias Préstamo <[email protected]>" ,"Diego Martín Fernández <[email protected]>" ]
 name = "remote-hdt"
 version = "0.0.1"
 edition = "2021"
@@ -16,11 +16,12 @@ rio_xml = "0.8.4"
 rio_api = "0.8.4"
 rayon = "1.8.0"
 parking_lot = "0.12"
+csv = "1.3.0"
 
 [target.'cfg(not(target_env = "msvc"))'.dependencies]
 jemallocator = "0.5.0"
 
 [profile.release]
 codegen-units = 1
 opt-level = 3
-lto = "fat"
+lto = "fat"

examples/metadata_bench.rs

@@ -3,25 +3,22 @@ use remote_hdt::metadata::Metadata;
 use remote_hdt::storage::params::Backend;
 use remote_hdt::storage::params::ReferenceSystem;
 use remote_hdt::storage::params::Serialization;
-use remote_hdt::storage::layout::metadata::MetadataLayout;
+use remote_hdt::metadata::structure::coordinates::CoordinatesStructure;
 
 
 use remote_hdt::storage::params::ChunkingStrategy;
 
 fn main() -> Result<(), RemoteHDTError> {
-    let rdf_path = "resources/1-lubm.ttl";
-    let metadata_path = "";
+    //let rdf_path = "resources/1-lubm.ttl";
+    let metadata_path = "resources/metadata_coordinates.csv";
     let zarr_path = "1-lubm-metadata.zarr";
-    let fields = vec!["X_pos", "Y_pos"];
-    let mut metadata = Metadata::new( MetadataLayout,Serialization::Zarr);
+    let fields = vec!["ID","X_pos", "Y_pos"]; // TODO: fix error when the first string is bigger example => vec!["triple_id","X_pos", "Y_pos"] 
+    let mut metadata = Metadata::new( CoordinatesStructure,Serialization::Zarr);
     metadata
         .serialize(
             Backend::FileSystem(zarr_path),
-            rdf_path, 
-            ChunkingStrategy::Sharding(1024),
-            ReferenceSystem::SPO, 
-
             metadata_path, 
+            ChunkingStrategy::Sharding(250),
             fields)
         .unwrap();