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Merged
merged 3 commits into from
Apr 19, 2021
Merged

Compress top-level metadata #35

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4f2dd70
Compress top-level metadata
brianzhang01 Apr 7, 2021
ab27282
Minor change to decompression
brianzhang01 Apr 7, 2021
45ec7c1
Adhere to 90-char line limit
brianzhang01 Apr 7, 2021
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13 changes: 13 additions & 0 deletions tests/test_compression.py
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,19 @@ def test_small_msprime_migration(self):
self.assertGreater(ts.num_trees, 2)
self.verify(ts)

def test_small_msprime_top_level_metadata(self):
ts = msprime.simulate(10, recombination_rate=2, mutation_rate=2, random_seed=2)
self.assertGreater(ts.num_sites, 2)
self.assertGreater(ts.num_trees, 2)
tables = ts.dump_tables()
top_level_schema = {
'codec': 'json',
'properties': {'my_int': {'type': 'integer'}}
}
tables.metadata_schema = tskit.MetadataSchema(top_level_schema)
tables.metadata = {"my_int": 1234}
self.verify(tables.tree_sequence())

def test_small_msprime_individuals_metadata(self):
ts = msprime.simulate(10, recombination_rate=1, mutation_rate=2, random_seed=2)
self.assertGreater(ts.num_sites, 2)
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6 changes: 6 additions & 0 deletions tszip/compression.py
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Expand Up @@ -172,6 +172,9 @@ def compress_zarr(ts, root, variants_only=False):
root.attrs["format_version"] = FORMAT_VERSION
root.attrs["sequence_length"] = tables.sequence_length
root.attrs["provenance"] = provenance_dict
if tables.metadata_schema.schema is not None:
root.attrs["metadata_schema"] = tables.metadata_schema.schema
root.attrs["metadata"] = tables.metadata

columns = [
Column("coordinates", coordinates),
Expand Down Expand Up @@ -280,6 +283,9 @@ def load_zarr(path):
def decompress_zarr(root):
tables = tskit.TableCollection(root.attrs["sequence_length"])
coordinates = root["coordinates"][:]
if "metadata_schema" in root.attrs and "metadata" in root.attrs:
tables.metadata_schema = tskit.MetadataSchema(root.attrs["metadata_schema"])
tables.metadata = root.attrs["metadata"]

tables.individuals.set_columns(
flags=root["individuals/flags"],
Expand Down