A pure rust implementation of version 3.0-dev of the Zarr core protocol for storage and retrieval of N-dimensional typed arrays.
Stable 1.41
[dependencies]
zarr = "0.0.1"use zarr::prelude::*;
use zarr::smallvec::smallvec;
fn zarr_roundtrip(root_path: &str) -> std::io::Result<()> {
let n = FilesystemHierarchy::open_or_create(root_path)?;
let chunk_shape = smallvec![44, 33, 22];
let array_meta = ArrayMetadata::new(
smallvec![100, 200, 300],
chunk_shape,
i16::ZARR_TYPE,
CompressionType::default(),
);
let chunk_data = vec![0i16; array_meta.get_chunk_num_elements()];
let chunk_in = SliceDataChunk::new(
smallvec![0, 0, 0],
&chunk_data);
let path_name = "/test/array/group";
n.create_array(path_name, &array_meta)?;
n.write_chunk(path_name, &array_meta, &chunk_in)?;
let chunk_out = n.read_chunk::<i16>(path_name, &array_meta, smallvec![0, 0, 0])?
.expect("Chunk is empty");
assert_eq!(chunk_out.get_data(), &chunk_data[..]);
Ok(())
}
fn main() {
zarr_roundtrip("tmp.zr3").expect("Zarr roundtrip failed!");
std::fs::remove_dir_all("tmp.zr3").expect("Failed to delete temporary zarr hierarchy");
}TODO
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.