def testImplicitTensorRepresentations(self):
tfxio = self._MakeTFXIO(_SCHEMA)
self.assertEqual(
{
"int_feature": text_format.Parse(
"""varlen_sparse_tensor { column_name: "int_feature" }""",
schema_pb2.TensorRepresentation()),
"float_feature": text_format.Parse(
"""varlen_sparse_tensor { column_name: "float_feature" }""",
schema_pb2.TensorRepresentation()),
"string_feature": text_format.Parse(
"""varlen_sparse_tensor { column_name: "string_feature" }""",
schema_pb2.TensorRepresentation()),
}, tfxio.TensorRepresentations())
def _AssertFn(record_batch_list):
self.assertLen(record_batch_list, 1)
record_batch = record_batch_list[0]
self._ValidateRecordBatch(tfxio, record_batch)
self.assertTrue(record_batch.schema.equals(tfxio.ArrowSchema()))
tensor_adapter = tfxio.TensorAdapter()
dict_of_tensors = tensor_adapter.ToBatchTensors(record_batch)
self.assertLen(dict_of_tensors, 3)
self.assertIn("int_feature", dict_of_tensors)
self.assertIn("float_feature", dict_of_tensors)
self.assertIn("string_feature", dict_of_tensors)
p = beam.Pipeline()
record_batch_pcoll = p | tfxio.BeamSource(batch_size=1000)
beam_testing_util.assert_that(record_batch_pcoll, _AssertFn)
pipeline_result = p.run()
pipeline_result.wait_until_finish()
telemetry_test_util.ValidateMetrics(
self, pipeline_result, _TELEMETRY_DESCRIPTORS,
"tf_example", "tfrecords_gzip")
def testProjection(self):
schema = schema_pb2.Schema()
schema.CopyFrom(_SCHEMA)
tensor_representations = {
"dense_string":
text_format.Parse(
"""dense_tensor {
column_name: "string_feature"
shape { dim { size: 2 } }
default_value { bytes_value: "zzz" }
}""", schema_pb2.TensorRepresentation()),
"varlen_string":
text_format.Parse(
"""varlen_sparse_tensor {
column_name: "string_feature"
}""", schema_pb2.TensorRepresentation()),
"varlen_float":
text_format.Parse(
"""varlen_sparse_tensor {
column_name: "float_feature"
}""", schema_pb2.TensorRepresentation()),
}
schema.tensor_representation_group[""].CopyFrom(
schema_pb2.TensorRepresentationGroup(
tensor_representation=tensor_representations))
tfxio = self._MakeTFXIO(schema)
self.assertEqual(tensor_representations, tfxio.TensorRepresentations())
projected_tfxio = tfxio.Project(
["dense_string", "varlen_string", "varlen_float"])
self.assertEqual(tensor_representations,
projected_tfxio.TensorRepresentations())
self.assertTrue(projected_tfxio.ArrowSchema().equals(
pa.schema([
pa.field("float_feature", pa.list_(pa.float32())),
pa.field("string_feature", pa.list_(pa.binary())),
])))
def _AssertFn(record_batch_list):
self.assertLen(record_batch_list, 1)
record_batch = record_batch_list[0]
self.ValidateRecordBatch(record_batch)
expected_schema = projected_tfxio.ArrowSchema()
self.assertTrue(
record_batch.schema.equals(expected_schema),
"actual: {}; expected: {}".format(record_batch.schema,
expected_schema))
tensor_adapter = projected_tfxio.TensorAdapter()
dict_of_tensors = tensor_adapter.ToBatchTensors(record_batch)
self.assertLen(dict_of_tensors, 3)
self.assertIn("dense_string", dict_of_tensors)
self.assertIn("varlen_string", dict_of_tensors)
self.assertIn("varlen_float", dict_of_tensors)
with beam.Pipeline() as p:
# Setting the betch_size to make sure only one batch is generated.
record_batch_pcoll = p | projected_tfxio.BeamSource(
batch_size=len(_EXAMPLES))
beam_testing_util.assert_that(record_batch_pcoll, _AssertFn)
def testProjection(self):
"""Test projecting of a TFXIO."""
schema = schema_pb2.Schema()
schema.CopyFrom(_UNORDERED_SCHEMA)
tensor_representations = {
"string_tensor":
schema_pb2.TensorRepresentation(
dense_tensor=schema_pb2.TensorRepresentation.DenseTensor(
column_name="string_feature")),
"float_tensor":
schema_pb2.TensorRepresentation(
sparse_tensor=schema_pb2.TensorRepresentation.SparseTensor(
dense_shape=schema_pb2.FixedShape(
dim=[schema_pb2.FixedShape.Dim(size=10)]),
index_column_names=["int_feature"],
value_column_name="float_feature")),
}
tensor_representation_util.SetTensorRepresentationsInSchema(
schema, tensor_representations)
tfxio = ParquetTFXIO(file_pattern=self._example_file,
column_names=_COLUMN_NAMES,
schema=schema,
telemetry_descriptors=_TELEMETRY_DESCRIPTORS)
projected_tfxio = tfxio.Project(["float_tensor"])
# The projected_tfxio has the projected schema
self.assertTrue(projected_tfxio.ArrowSchema().equals(
_EXPECTED_PROJECTED_ARROW_SCHEMA))
def _AssertFn(record_batch_list):
self.assertLen(record_batch_list, 1)
record_batch = record_batch_list[0]
self._ValidateRecordBatch(record_batch,
_EXPECTED_PROJECTED_ARROW_SCHEMA)
expected_schema = projected_tfxio.ArrowSchema()
self.assertListEqual(
record_batch.schema.names, expected_schema.names,
"actual: {}; expected: {}".format(record_batch.schema.names,
expected_schema.names))
self.assertListEqual(
record_batch.schema.types, expected_schema.types,
"actual: {}; expected: {}".format(record_batch.schema.types,
expected_schema.types))
tensor_adapter = projected_tfxio.TensorAdapter()
dict_of_tensors = tensor_adapter.ToBatchTensors(record_batch)
self.assertLen(dict_of_tensors, 1)
self.assertIn("float_tensor", dict_of_tensors)
pipeline = beam.Pipeline()
record_batch_pcoll = (pipeline |
projected_tfxio.BeamSource(batch_size=_NUM_ROWS))
beam_testing_util.assert_that(record_batch_pcoll, _AssertFn)
pipeline_result = pipeline.run()
pipeline_result.wait_until_finish()
telemetry_test_util.ValidateMetrics(self, pipeline_result,
_TELEMETRY_DESCRIPTORS, "parquet",
"parquet")
def testTrackRecordTensorRepresentations(self):
num_dense_tensors = 3
num_varlen_sparse_tensors = 2
num_sparse_tensors = 1
num_ragged_tensors = 4
tensor_representations = {}
for i in range(num_dense_tensors):
tensor_representations[f"dense{i}"] = (
schema_pb2.TensorRepresentation(
dense_tensor=schema_pb2.TensorRepresentation.DenseTensor())
)
for i in range(num_varlen_sparse_tensors):
tensor_representations[f"varlen{i}"] = (
schema_pb2.TensorRepresentation(
varlen_sparse_tensor=schema_pb2.TensorRepresentation.
VarLenSparseTensor()))
for i in range(num_sparse_tensors):
tensor_representations[f"sparse{i}"] = (
schema_pb2.TensorRepresentation(
sparse_tensor=schema_pb2.TensorRepresentation.SparseTensor(
)))
for i in range(num_ragged_tensors):
tensor_representations[f"ragged{i}"] = (
schema_pb2.TensorRepresentation(
ragged_tensor=schema_pb2.TensorRepresentation.RaggedTensor(
)))
expected_counters = {
"dense_tensor": num_dense_tensors,
"varlen_sparse_tensor": num_varlen_sparse_tensors,
"sparse_tensor": num_sparse_tensors,
"ragged_tensor": num_ragged_tensors,
}
with beam.Pipeline(
**test_helpers.make_test_beam_pipeline_kwargs()) as p:
_ = (p | beam.Create([tensor_representations])
| collection.TrackTensorRepresentations(
counter_namespace="TestNamespace"))
pipeline_result = p.run()
result_metrics = pipeline_result.metrics()
for kind, expected_count in expected_counters.items():
actual_counter = result_metrics.query(
beam.metrics.metric.MetricsFilter().with_name(
kind))["counters"]
self.assertLen(
actual_counter,
1,
msg=
f"Actual and expected lengths of {kind} counter are different."
)
self.assertEqual(
actual_counter[0].committed,
expected_count,
msg=
f"Actual and expected values for {kind} counter are different."
)
def test_simple(self, attach_raw_records):
raw_record_column_name = "_raw_records" if attach_raw_records else None
tfxio = record_to_tensor_tfxio.TFRecordToTensorTFXIO(
self._input_path,
self._decoder_path,
_TELEMETRY_DESCRIPTORS,
raw_record_column_name=raw_record_column_name)
expected_fields = [
pa.field("st1", pa.list_(pa.binary())),
pa.field("st2", pa.list_(pa.binary())),
]
if attach_raw_records:
raw_record_column_type = (pa.large_list(pa.large_binary())
if tfxio._can_produce_large_types else
pa.list_(pa.binary()))
expected_fields.append(
pa.field(raw_record_column_name, raw_record_column_type))
self.assertTrue(tfxio.ArrowSchema().equals(pa.schema(expected_fields)),
tfxio.ArrowSchema())
self.assertEqual(
tfxio.TensorRepresentations(), {
"st1":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "st1" }""",
schema_pb2.TensorRepresentation()),
"st2":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "st2" }""",
schema_pb2.TensorRepresentation())
})
tensor_adapter = tfxio.TensorAdapter()
self.assertEqual(tensor_adapter.TypeSpecs(),
_DecoderForTesting().output_type_specs())
def _assert_fn(list_of_rb):
self.assertLen(list_of_rb, 1)
rb = list_of_rb[0]
self.assertTrue(rb.schema.equals(tfxio.ArrowSchema()))
tensors = tensor_adapter.ToBatchTensors(rb)
self.assertLen(tensors, 2)
for tensor_name in ("st1", "st2"):
self.assertIn(tensor_name, tensors)
st = tensors[tensor_name]
self.assertAllEqual(st.values, _RECORDS)
self.assertAllEqual(st.indices, [[0, 0], [1, 0]])
self.assertAllEqual(st.dense_shape, [2, 1])
p = beam.Pipeline()
rb_pcoll = p | tfxio.BeamSource(batch_size=len(_RECORDS))
beam_testing_util.assert_that(rb_pcoll, _assert_fn)
pipeline_result = p.run()
pipeline_result.wait_until_finish()
telemetry_test_util.ValidateMetrics(self, pipeline_result,
_TELEMETRY_DESCRIPTORS, "tensor",
"tfrecords_gzip")
def _InferTensorRepresentationFromSchema(
schema: schema_pb2.Schema
) -> Dict[str, schema_pb2.TensorRepresentation]:
"""Translate a Feature proto into a TensorRepresentation proto.
We apply the following rules:
1. If the feature has a fixed shape (set through Feature.shape field),
then the feature must always be present (
Feature.presence.min_fraction == 1.0), and a DenseTensor representation
will be produced for it.
2. Otherwise, a VarLenSparseTensor representation will be produced for it.
Args:
schema: a schema_pb2.Schema.
Returns:
A Dict mapping tensor names to their TensorRepresentations.
Raises:
ValueError: if the feature has a fixed shape but is not always present.
"""
result = {}
columns_remaining = {f.name: f for f in schema.feature}
sparse_tensor_repsentations, columns_remaining = (
_InferSparseTensorRepresentationsFromSchema(schema, columns_remaining))
result.update(sparse_tensor_repsentations)
for feature in columns_remaining.values():
if not _ShouldIncludeFeature(feature):
continue
if feature.HasField("shape"):
if feature.presence.min_fraction != 1:
raise ValueError(
"Feature {} had shape {} set but min_fraction {} != 1. Use"
" value_count not shape field when min_fraction != 1.".
format(feature.name, feature.shape,
feature.presence.min_fraction))
logging.info("Feature %s has a shape %s. Setting to DenseTensor.",
feature.name, feature.shape)
result[feature.name] = schema_pb2.TensorRepresentation(
dense_tensor=schema_pb2.TensorRepresentation.DenseTensor(
column_name=feature.name, shape=feature.shape))
else:
logging.info(
"Feature %s has no shape. Setting to VarLenSparseTensor.",
feature.name)
result[feature.name] = schema_pb2.TensorRepresentation(
varlen_sparse_tensor=schema_pb2.TensorRepresentation.
VarLenSparseTensor(column_name=feature.name))
return result
def tensor_representation(self) -> schema_pb2.TensorRepresentation:
result = schema_pb2.TensorRepresentation()
for d in self._unbatched_shape:
result.sparse_tensor.dense_shape.dim.add().size = d
result.sparse_tensor.value_column_name = self._value_column_name
result.sparse_tensor.index_column_names.extend(self._index_column_names)
return result
def testGetSourceValueColumnFromTensorRepresentation(
self, pbtxt, expected):
self.assertEqual(
path.ColumnPath(expected),
tensor_representation_util.
GetSourceValueColumnFromTensorRepresentation(
text_format.Parse(pbtxt, schema_pb2.TensorRepresentation())))
def testCreateTfExampleParserConfig(self, tensor_representation,
feature_type, tf_example,
expected_feature,
expected_parsed_results):
tensor_representation = text_format.Parse(
tensor_representation, schema_pb2.TensorRepresentation())
feature = tensor_representation_util.CreateTfExampleParserConfig(
tensor_representation, feature_type)
# Checks that the parser configs are correct.
for actual_arg, expected_arg in zip(feature, expected_feature):
self.assertAllEqual(actual_arg, expected_arg)
# Checks that the parser configs can be used with tf.io.parse_example()
actual_tensors = tf.io.parse_single_example(tf_example,
{'feat': feature})
actual = actual_tensors['feat']
if isinstance(actual, tf.SparseTensor) or isinstance(
actual, tf.compat.v1.SparseTensorValue):
self.assertAllEqual(actual.values, expected_parsed_results.values)
self.assertAllEqual(actual.indices,
expected_parsed_results.indices)
self.assertAllEqual(actual.dense_shape,
expected_parsed_results.dense_shape)
else:
self.assertAllEqual(actual, expected_parsed_results)
def __setstate__(self, t):
tensor_representations = {}
for k, v in t[1].items():
r = schema_pb2.TensorRepresentation()
r.ParseFromString(v)
tensor_representations[k] = r
self.__init__(t[0], tensor_representations, t[2])
def testPickleTensorAdapterConfig(self):
config = tensor_adapter.TensorAdapterConfig(
arrow_schema=pa.schema([pa.field("column1",
pa.list_(pa.int32()))]),
tensor_representations={
"column1":
text_format.Parse(
"""
dense_tensor {
column_name: "column1"
shape {
dim {
size: 1
}
}
}""", schema_pb2.TensorRepresentation())
},
original_type_specs={
"column1": tf.TensorSpec(dtype=tf.int32, shape=[None, 1]),
"column2": tf.TensorSpec(dtype=tf.int32, shape=[None, 1])
})
unpickled_config = pickle.loads(pickle.dumps(config))
self.assertEqual(config.arrow_schema, unpickled_config.arrow_schema)
self.assertEqual(config.tensor_representations,
unpickled_config.tensor_representations)
self.assertEqual(config.original_type_specs,
unpickled_config.original_type_specs)
def testInferTensorRepresentationsFromSchema(
self,
ascii_proto,
expected,
generate_legacy_feature_spec=False,
schema_is_mixed=False):
if not _IS_LEGACY_SCHEMA and generate_legacy_feature_spec:
raise self.skipTest('This test exersizes legacy inference logic, but the '
'schema is not legacy schema.')
schema = text_format.Parse(ascii_proto, schema_pb2.Schema())
if _IS_LEGACY_SCHEMA:
schema.generate_legacy_feature_spec = generate_legacy_feature_spec
expected_protos = {
k: text_format.Parse(pbtxt, schema_pb2.TensorRepresentation())
for k, pbtxt in expected.items()
}
if not schema_is_mixed:
self.assertEqual(
expected_protos,
tensor_representation_util.InferTensorRepresentationsFromSchema(
schema))
self.assertEqual(
expected_protos,
tensor_representation_util.InferTensorRepresentationsFromMixedSchema(
schema))
def TensorRepresentations(self) -> tensor_adapter.TensorRepresentations:
return {
self.raw_record_column_name:
schema_pb2.TensorRepresentation(
dense_tensor=schema_pb2.TensorRepresentation.DenseTensor(
column_name=self.raw_record_column_name,
shape=schema_pb2.FixedShape(), # scalar
))
}
def testImplicitTensorRepresentations(self, use_beam_record_csv_tfxio):
"""Tests inferring of tensor representation."""
tfxio = self._MakeTFXIO(
_COLUMN_NAMES,
schema=_SCHEMA,
make_beam_record_tfxio=use_beam_record_csv_tfxio)
self.assertEqual(
{
"int_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "int_feature"}""",
schema_pb2.TensorRepresentation()),
"float_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "float_feature"}""",
schema_pb2.TensorRepresentation()),
"string_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "string_feature" }""",
schema_pb2.TensorRepresentation()),
}, tfxio.TensorRepresentations())
def _AssertFn(record_batch_list):
self.assertLen(record_batch_list, 1)
record_batch = record_batch_list[0]
self._ValidateRecordBatch(tfxio, record_batch)
self.assertTrue(record_batch.schema.equals(tfxio.ArrowSchema()))
tensor_adapter = tfxio.TensorAdapter()
dict_of_tensors = tensor_adapter.ToBatchTensors(record_batch)
self.assertLen(dict_of_tensors, 3)
self.assertIn("int_feature", dict_of_tensors)
self.assertIn("float_feature", dict_of_tensors)
self.assertIn("string_feature", dict_of_tensors)
p = beam.Pipeline()
record_batch_pcoll = (self._MakePipelineInputs(
p, use_beam_record_csv_tfxio)
| tfxio.BeamSource(batch_size=len(_ROWS)))
beam_testing_util.assert_that(record_batch_pcoll, _AssertFn)
pipeline_result = p.run()
pipeline_result.wait_until_finish()
telemetry_test_util.ValidateMetrics(self, pipeline_result,
_TELEMETRY_DESCRIPTORS, "csv",
_EXPECTED_PHYSICAL_FORMAT)
def testImplicitTensorRepresentations(self):
"""Tests inferring of tensor representation."""
tfxio = ParquetTFXIO(file_pattern=self._example_file,
column_names=_COLUMN_NAMES,
schema=_UNORDERED_SCHEMA,
telemetry_descriptors=_TELEMETRY_DESCRIPTORS)
self.assertEqual(
{
"int_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "int_feature"}""",
schema_pb2.TensorRepresentation()),
"float_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "float_feature"}""",
schema_pb2.TensorRepresentation()),
"string_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "string_feature" }""",
schema_pb2.TensorRepresentation()),
}, tfxio.TensorRepresentations())
def _AssertFn(record_batch_list):
self.assertLen(record_batch_list, 1)
record_batch = record_batch_list[0]
self._ValidateRecordBatch(record_batch, _EXPECTED_ARROW_SCHEMA)
self.assertTrue(record_batch.schema.equals(tfxio.ArrowSchema()))
tensor_adapter = tfxio.TensorAdapter()
dict_of_tensors = tensor_adapter.ToBatchTensors(record_batch)
self.assertLen(dict_of_tensors, 3)
self.assertIn("int_feature", dict_of_tensors)
self.assertIn("float_feature", dict_of_tensors)
self.assertIn("string_feature", dict_of_tensors)
pipeline = beam.Pipeline()
record_batch_pcoll = (pipeline
| tfxio.BeamSource(batch_size=_NUM_ROWS))
beam_testing_util.assert_that(record_batch_pcoll, _AssertFn)
pipeline_result = pipeline.run()
pipeline_result.wait_until_finish()
telemetry_test_util.ValidateMetrics(self, pipeline_result,
_TELEMETRY_DESCRIPTORS, "parquet",
"parquet")
def tensor_representation(self) -> schema_pb2.TensorRepresentation:
result = schema_pb2.TensorRepresentation()
result.ragged_tensor.feature_path.step.append(self._tensor_name)
row_partition_dtype = (
schema_pb2.TensorRepresentation.RowPartitionDType.INT32
if self._row_partition_dtype == tf.int32 else
schema_pb2.TensorRepresentation.RowPartitionDType.INT64)
result.ragged_tensor.row_partition_dtype = row_partition_dtype
return result
def testRaiseOnInvalidSparseTensorRepresentation(
self, tensor_representation_textpb, arrow_schema):
tensor_representation = text_format.Parse(
tensor_representation_textpb, schema_pb2.TensorRepresentation())
with self.assertRaisesRegex(ValueError, "Unable to handle tensor"):
tensor_adapter.TensorAdapter(
tensor_adapter.TensorAdapterConfig(
pa.schema(
[pa.field(k, v) for k, v in arrow_schema.items()]),
{"tensor": tensor_representation}))
def testImplicitTensorRepresentations(self):
tfxio = self._MakeTFXIO(_SCHEMA)
self.assertTrue(tfxio.ArrowSchema().equals(
pa.schema([
pa.field("int_feature", pa.list_(pa.int64())),
pa.field("float_feature", pa.list_(pa.float32())),
pa.field("string_feature", pa.list_(pa.binary())),
])))
self.assertEqual(
{
"int_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "int_feature" }""",
schema_pb2.TensorRepresentation()),
"float_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "float_feature" }""",
schema_pb2.TensorRepresentation()),
"string_feature":
text_format.Parse(
"""varlen_sparse_tensor { column_name: "string_feature" }""",
schema_pb2.TensorRepresentation()),
}, tfxio.TensorRepresentations())
def _AssertFn(record_batch_list):
self.assertLen(record_batch_list, 1)
record_batch = record_batch_list[0]
self.ValidateRecordBatch(record_batch)
self.assertTrue(record_batch.schema.equals(tfxio.ArrowSchema()))
tensor_adapter = tfxio.TensorAdapter()
dict_of_tensors = tensor_adapter.ToBatchTensors(record_batch)
self.assertLen(dict_of_tensors, 3)
self.assertIn("int_feature", dict_of_tensors)
self.assertIn("float_feature", dict_of_tensors)
self.assertIn("string_feature", dict_of_tensors)
with beam.Pipeline() as p:
# Setting the betch_size to make sure only one batch is generated.
record_batch_pcoll = p | tfxio.BeamSource(
batch_size=len(_EXAMPLES))
beam_testing_util.assert_that(record_batch_pcoll, _AssertFn)
def testCreateTfExampleParserConfigRagged(self):
feature_type = schema_pb2.INT
tensor_representation = text_format.Parse(
"""
ragged_tensor {
feature_path {
step: "ragged_feature"
}
}""", schema_pb2.TensorRepresentation())
with self.assertRaisesRegex(NotImplementedError,
'TensorRepresentation: .* is not supported.'):
tensor_representation_util.CreateTfExampleParserConfig(
tensor_representation, feature_type)
def TensorRepresentations(self):
return { # pylint: disable=g-complex-comprehension
c: text_format.Parse(
"""
dense_tensor {
column_name: "%s"
shape {
dim {
size: 1
}
}
}""" % c, schema_pb2.TensorRepresentation())
for c in self._columns
}
def testInputSpecsToTensorRepresentations(self):
tensor_representations = model_util.input_specs_to_tensor_representations(
{
'input_1':
tf.TensorSpec(shape=(None, 2), dtype=tf.int64),
'input_2':
tf.SparseTensorSpec(shape=(None, 1), dtype=tf.float32),
'input_3':
tf.RaggedTensorSpec(shape=(None, None), dtype=tf.float32),
})
dense_tensor_representation = text_format.Parse(
"""
dense_tensor {
column_name: "input_1"
shape { dim { size: 2 } }
}
""", schema_pb2.TensorRepresentation())
sparse_tensor_representation = text_format.Parse(
"""
varlen_sparse_tensor {
column_name: "input_2"
}
""", schema_pb2.TensorRepresentation())
ragged_tensor_representation = text_format.Parse(
"""
ragged_tensor {
feature_path {
step: "input_3"
}
}
""", schema_pb2.TensorRepresentation())
self.assertEqual(
{
'input_1': dense_tensor_representation,
'input_2': sparse_tensor_representation,
'input_3': ragged_tensor_representation
}, tensor_representations)
def _ragged_tensor_representation_from_feature_spec(
spec: common_types.RaggedFeature, name: str,
domains: Dict[str, common_types.DomainType]
) -> Tuple[schema_pb2.Feature, List[schema_pb2.Feature],
schema_pb2.TensorRepresentation]:
"""Returns representation of a RaggedTensor from a feature spec.
Args:
spec: A tf.io.RaggedFeature feature spec.
name: Feature name.
domains: A dict whose keys are feature names and values are one of
schema_pb2.IntDomain, schema_pb2.StringDomain or schema_pb2.FloatDomain.
Returns:
A tuple (value_feature, partitions_features, ragged_tensor_rep),
where value_feature represents RaggedTensor values, partitions_features
represent row lengths partitions and ragged_tensor_rep - ragged
TensorRepresentation.
Raises:
ValueError: If the feature spec contains partition types different from
UniformRowLength and RowLengths.
"""
value_feature = schema_pb2.Feature(name=spec.value_key or name)
_set_type(name, value_feature, spec.dtype)
_set_domain(name, value_feature, domains.get(name))
ragged_tensor = schema_pb2.TensorRepresentation.RaggedTensor(
feature_path=path_pb2.Path(step=[spec.value_key or name]))
partitions_features = []
for partition in spec.partitions:
if isinstance(partition, tf.io.RaggedFeature.UniformRowLength): # pytype: disable=attribute-error
ragged_tensor.partition.append(
schema_pb2.TensorRepresentation.RaggedTensor.Partition(
uniform_row_length=partition.length))
elif isinstance(partition, tf.io.RaggedFeature.RowLengths): # pytype: disable=attribute-error
ragged_tensor.partition.append(
schema_pb2.TensorRepresentation.RaggedTensor.Partition(
row_length=partition.key))
partitions_features.append(
schema_pb2.Feature(name=partition.key, type=schema_pb2.INT))
else:
raise ValueError(
'RaggedFeature can only be created with UniformRowLength and '
'RowLengths partitions.')
return value_feature, partitions_features, schema_pb2.TensorRepresentation(
ragged_tensor=ragged_tensor)
def testCreateTfExampleParserConfigRagged(self):
feature_type = schema_pb2.INT
tensor_representation = text_format.Parse(
"""
ragged_tensor {
feature_path {
step: "foo"
step: "ragged_feature"
}
}""", schema_pb2.TensorRepresentation())
with self.assertRaisesRegex(
ValueError, ('Parsing spec from a RaggedTensor with multiple steps in '
'feature_path is not implemented.')):
tensor_representation_util.CreateTfExampleParserConfig(
tensor_representation, feature_type)
def tensor_representation(self) -> schema_pb2.TensorRepresentation:
result = schema_pb2.TensorRepresentation()
result.ragged_tensor.feature_path.step.append(self._tensor_name)
row_partition_dtype = (
schema_pb2.TensorRepresentation.RowPartitionDType.INT32
if self._row_partition_dtype == tf.int32 else
schema_pb2.TensorRepresentation.RowPartitionDType.INT64)
result.ragged_tensor.row_partition_dtype = row_partition_dtype
for dim in self._unbatched_shape:
# Create uniform_row_length partitions only.
if dim is not None:
result.ragged_tensor.partition.append(
schema_pb2.TensorRepresentation.RaggedTensor.Partition(
uniform_row_length=dim))
return result
def testRecordBatchToTensorValuesWithTensorRepresentation(self):
record_batch = pa.record_batch(
[pa.array([[1, 2], [2, 3], [3, 4]]),
pa.array([[0], [1], [1]])], ['feature_1', 'feature_2'])
tensor_representation = schema_pb2.TensorRepresentation()
tensor_representation.dense_tensor.column_name = 'feature_1'
tensor_representation.dense_tensor.shape.dim.append(
schema_pb2.FixedShape.Dim(size=2))
actual = util.record_batch_to_tensor_values(
record_batch, {'feature_1': tensor_representation})
expected = {
'feature_1': np.array([[1, 2], [2, 3], [3, 4]]),
'feature_2': np.array([0, 1, 1])
}
self.assertAllClose(actual, expected)
def testRaiseOnInvalidDefaultValue(self, value_type, default_value_pbtxt,
exception_regexp):
tensor_representation = text_format.Parse(
"""
dense_tensor {
column_name: "column"
shape {}
}""", schema_pb2.TensorRepresentation())
tensor_representation.dense_tensor.default_value.CopyFrom(
text_format.Parse(default_value_pbtxt,
schema_pb2.TensorRepresentation.DefaultValue()))
with self.assertRaisesRegex(ValueError, exception_regexp):
tensor_adapter.TensorAdapter(
tensor_adapter.TensorAdapterConfig(
pa.schema([pa.field("column", pa.list_(value_type))]),
{"tensor": tensor_representation}))
def test2DSparseTensor(self):
tensor_representation = text_format.Parse(
"""
sparse_tensor {
value_column_name: "values"
index_column_names: ["d0", "d1"]
dense_shape {
dim {
size: 10
}
dim {
size: 20
}
}
}
""", schema_pb2.TensorRepresentation())
record_batch = pa.RecordBatch.from_arrays(
[
pa.array([[1], None, [2], [3, 4, 5], []],
type=pa.list_(pa.int64())),
# Also test that the index column can be of an integral type other
# than int64.
pa.array([[9], None, [9], [7, 8, 9], []],
type=pa.list_(pa.uint32())),
pa.array([[0], None, [0], [0, 1, 2], []],
type=pa.list_(pa.int64()))
],
["values", "d0", "d1"])
adapter = tensor_adapter.TensorAdapter(
tensor_adapter.TensorAdapterConfig(
record_batch.schema, {"output": tensor_representation}))
converted = adapter.ToBatchTensors(record_batch)
self.assertLen(converted, 1)
self.assertIn("output", converted)
actual_output = converted["output"]
self.assertIsInstance(
actual_output, (tf.SparseTensor, tf.compat.v1.SparseTensorValue))
self.assertSparseAllEqual(
tf.compat.v1.SparseTensorValue(dense_shape=[5, 10, 20],
indices=[[0, 9, 0], [2, 9, 0],
[3, 7, 0], [3, 8, 1],
[3, 9, 2]],
values=tf.convert_to_tensor(
[1, 2, 3, 4, 5],
dtype=tf.int64)), actual_output)
self.assertAdapterCanProduceNonEagerInEagerMode(adapter, record_batch)
def testOriginalTypeSpecs(self):
arrow_schema = pa.schema([pa.field("column1", pa.list_(pa.int32()))])
tensor_representations = {
"column1":
text_format.Parse(
"""
dense_tensor {
column_name: "column1"
shape {
dim {
size: 1
}
}
}""", schema_pb2.TensorRepresentation())
}
adapter = tensor_adapter.TensorAdapter(
tensor_adapter.TensorAdapterConfig(arrow_schema,
tensor_representations))
self.assertLen(adapter.TypeSpecs(), 1)
self.assertEqual(adapter.TypeSpecs(), adapter.OriginalTypeSpecs())
adapter = tensor_adapter.TensorAdapter(
tensor_adapter.TensorAdapterConfig(
arrow_schema,
tensor_representations,
original_type_specs={
"column1": tf.TensorSpec(dtype=tf.int32, shape=[None, 1]),
"column2": tf.TensorSpec(dtype=tf.int32, shape=[None, 1])
}))
self.assertLen(adapter.TypeSpecs(), 1)
self.assertLen(adapter.OriginalTypeSpecs(), 2)
with self.assertRaisesRegex(ValueError,
"original_type_specs must be a superset"):
adapter = tensor_adapter.TensorAdapter(
tensor_adapter.TensorAdapterConfig(
arrow_schema,
tensor_representations,
original_type_specs={
# mismatch spec of column1
"column1": tf.TensorSpec(dtype=tf.int64,
shape=[None, 1]),
"column2": tf.TensorSpec(dtype=tf.int32,
shape=[None, 1])
}))
def testInferTensorRepresentationsFromSchema(
self, ascii_proto, expected, generate_legacy_feature_spec=False):
# Skip a test if it's testing legacy logic but the schema is not the
# legacy schema.
if not _IS_LEGACY_SCHEMA and generate_legacy_feature_spec:
print('Skipping test case: ', self.id(), file=sys.stderr)
return
schema = text_format.Parse(ascii_proto, schema_pb2.Schema())
if _IS_LEGACY_SCHEMA:
schema.generate_legacy_feature_spec = generate_legacy_feature_spec
expected_protos = {
k: text_format.Parse(pbtxt, schema_pb2.TensorRepresentation())
for k, pbtxt in expected.items()
}
self.assertEqual(
expected_protos,
tensor_representation_util.InferTensorRepresentationsFromSchema(
schema))
def testCreateTfExampleParserConfigInvalidDefaultValue(self):
tensor_representation = text_format.Parse(
"""
dense_tensor {
column_name: "dense_column"
shape {
dim {
size: 1
}
}
default_value {
int_value: -1
}
}""", schema_pb2.TensorRepresentation())
feature_type = schema_pb2.FLOAT
with self.assertRaisesRegex(
ValueError, 'FeatureType:.* is incompatible with default_value:.*'):
tensor_representation_util.CreateTfExampleParserConfig(
tensor_representation, feature_type)
