plots: cleanup data extraction#6355
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pared
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Jul 22, 2021
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| if extension in (".json", ".yaml"): | ||
| return DictData(filename, revision, content) | ||
| if extension in (".csv", ".tsv"): | ||
| return ListData(filename, revision, content) |
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After moving data parsing to collect in #5984 we can abstract obtained data.
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| def _apply_path(data, path=None, **kwargs): | ||
| if not path or not isinstance(data, dict): | ||
| return data | ||
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| import jsonpath_ng | ||
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| found = jsonpath_ng.parse(path).find(data) | ||
| first_datum = first(found) | ||
| if ( | ||
| len(found) == 1 | ||
| and isinstance(first_datum.value, list) | ||
| and isinstance(first(first_datum.value), dict) | ||
| ): | ||
| data_points = first_datum.value | ||
| elif len(first_datum.path.fields) == 1: | ||
| field_name = first(first_datum.path.fields) | ||
| data_points = [{field_name: datum.value} for datum in found] | ||
| else: | ||
| raise PlotDataStructureError() | ||
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| if not isinstance(data_points, list) or not ( | ||
| isinstance(first(data_points), dict) | ||
| ): | ||
| raise PlotDataStructureError() | ||
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| return data_points | ||
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Not supported from #3840 I recall that we have been talking about keeping it in another form, but anyway, it can always be brought back from git history.
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| @pytest.mark.parametrize("data_class", [JSONPlotData, YAMLPlotData]) | ||
| def test_find_data_in_dict(tmp_dir, data_class): | ||
| metric = [{"accuracy": 1, "loss": 2}, {"accuracy": 3, "loss": 4}] | ||
| dmetric = {"train": metric} | ||
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| plot_data = data_class("-", "revision", dmetric) | ||
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| expected = metric | ||
| for d in expected: | ||
| d["rev"] = "revision" | ||
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| assert list(map(dict, plot_data.to_datapoints())) == expected | ||
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| from dvc.repo.plots.data import _apply_path, _find_data, _lists | ||
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| @pytest.mark.parametrize( | ||
| "path,expected_result", | ||
| [ | ||
| ("$.some.path[*].a", [{"a": 1}, {"a": 4}]), | ||
| ("$.some.path", [{"a": 1, "b": 2, "c": 3}, {"a": 4, "b": 5, "c": 6}]), | ||
| ], | ||
| ) | ||
| def test_parse_json(path, expected_result): | ||
| value = { | ||
| "some": {"path": [{"a": 1, "b": 2, "c": 3}, {"a": 4, "b": 5, "c": 6}]} | ||
| } | ||
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| result = _apply_path(value, path=path) | ||
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| assert result == expected_result |
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Same as before, no need for this test for now.
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| def test_finding_data(fields): | ||
| data = {"a": {"b": [{"x": 2, "y": 3}, {"x": 1, "y": 5}]}} |
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Expanded scope of the test to test to_datapoints and remove redundancy in tests (test_finding_data was checking basically the same as test_find_data_in_dict).
pared
commented
Jul 22, 2021
| "nanotime>=0.5.2", | ||
| "pyasn1>=0.4.1", | ||
| "voluptuous>=0.11.7", | ||
| "jsonpath-ng>=1.5.1", |
Contributor
Author
pmrowla
approved these changes
Jul 23, 2021
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