feat: Added default AutoMLTabularTrainingJob column transformations

google/cloud/aiplatform/datasets/_datasources.py

@@ -86,9 +86,9 @@ def __init__(
             raise ValueError("One of gcs_source or bq_source must be set.")
 
         if gcs_source:
-            dataset_metadata = {"input_config": {"gcs_source": {"uri": gcs_source}}}
+            dataset_metadata = {"inputConfig": {"gcsSource": {"uri": gcs_source}}}
         elif bq_source:
-            dataset_metadata = {"input_config": {"bigquery_source": {"uri": bq_source}}}
+            dataset_metadata = {"inputConfig": {"bigquerySource": {"uri": bq_source}}}
 
         self._dataset_metadata = dataset_metadata
 

google/cloud/aiplatform/datasets/tabular_dataset.py

@@ -15,16 +15,23 @@
 # limitations under the License.
 #
 
+import csv
 from typing import Optional, Sequence, Tuple, Union
 
 from google.auth import credentials as auth_credentials
 
+from google.cloud import bigquery
+from google.cloud import storage
+
 from google.cloud.aiplatform import datasets
 from google.cloud.aiplatform.datasets import _datasources
 from google.cloud.aiplatform import initializer
 from google.cloud.aiplatform import schema
 from google.cloud.aiplatform import utils
 
+from typing import List
+import logging
+
 
 class TabularDataset(datasets._Dataset):
     """Managed tabular dataset resource for AI Platform"""
@@ -33,6 +40,154 @@ class TabularDataset(datasets._Dataset):
         schema.dataset.metadata.tabular,
     )
 
+    @property
+    def column_names(self) -> List[str]:
+        """Retrieve the columns for the dataset by extracting it from the Google Cloud Storage or
+        Google BigQuery source.
+
+        Returns:
+            List[str]
+                A list of columns names
+
+        Raises:
+            RuntimeError: When no valid source is found.
+        """
+
+        metadata = self._gca_resource.metadata
+
+        if metadata is None:
+            raise RuntimeError("No metadata found for dataset")
+
+        input_config = metadata.get("inputConfig")
+
+        if input_config is None:
+            raise RuntimeError("No inputConfig found for dataset")
+
+        gcs_source = input_config.get("gcsSource")
+        bq_source = input_config.get("bigquerySource")
+
+        if gcs_source:
+            gcs_source_uris = gcs_source.get("uri")
+
+            if gcs_source_uris and len(gcs_source_uris) > 0:
+                # Lexicographically sort the files
+                gcs_source_uris.sort()
+
+                # Get the first file in sorted list
+                return TabularDataset._retrieve_gcs_source_columns(
+                    self.project, gcs_source_uris[0]
+                )
+        elif bq_source:
+            bq_table_uri = bq_source.get("uri")
+            if bq_table_uri:
+                return TabularDataset._retrieve_bq_source_columns(
+                    self.project, bq_table_uri
+                )
+
+        raise RuntimeError("No valid CSV or BigQuery datasource found.")
+
+    @staticmethod
+    def _retrieve_gcs_source_columns(project: str, gcs_csv_file_path: str) -> List[str]:
+        """Retrieve the columns from a comma-delimited CSV file stored on Google Cloud Storage
+
+        Example Usage:
+
+            column_names = _retrieve_gcs_source_columns(
+                "project_id",
+                "gs://example-bucket/path/to/csv_file"
+            )
+
+            # column_names = ["column_1", "column_2"]
+
+        Args:
+            project (str):
+                Required. Project to initiate the Google Cloud Storage client with.
+            gcs_csv_file_path (str):
+                Required. A full path to a CSV files stored on Google Cloud Storage.
+                Must include "gs://" prefix.
+
+        Returns:
+            List[str]
+                A list of columns names in the CSV file.
+
+        Raises:
+            RuntimeError: When the retrieved CSV file is invalid.
+        """
+
+        gcs_bucket, gcs_blob = utils.extract_bucket_and_prefix_from_gcs_path(
+            gcs_csv_file_path
+        )
+        client = storage.Client(project=project)
+        bucket = client.bucket(gcs_bucket)
+        blob = bucket.blob(gcs_blob)
+
+        # Incrementally download the CSV file until the header is retrieved
+        first_new_line_index = -1
+        start_index = 0
+        increment = 1000
+        line = ""
+
+        try:
+            logging.disable(logging.CRITICAL)
+            while first_new_line_index == -1:
+                line += blob.download_as_bytes(
+                    start=start_index, end=start_index + increment
+                ).decode("utf-8")
+                first_new_line_index = line.find("\n")
+                start_index += increment
+
+            header_line = line[:first_new_line_index]
+
+            # Split to make it an iterable
+            header_line = header_line.split("\n")[:1]
+
+            csv_reader = csv.reader(header_line, delimiter=",")
+        except (ValueError, RuntimeError) as err:
+            raise RuntimeError(
+                "There was a problem extracting the headers from the CSV file at '{}': {}".format(
+                    gcs_csv_file_path, err
+                )
+            )
+        finally:
+            logging.disable(logging.NOTSET)
+
+        return next(csv_reader)
+
+    @staticmethod
+    def _retrieve_bq_source_columns(project: str, bq_table_uri: str) -> List[str]:
+        """Retrieve the columns from a table on Google BigQuery
+
+        Example Usage:
+
+            column_names = _retrieve_bq_source_columns(
+                "project_id",
+                "bq://project_id.dataset.table"
+            )
+
+            # column_names = ["column_1", "column_2"]
+
+        Args:
+            project (str):
+                Required. Project to initiate the BigQuery client with.
+            bq_table_uri (str):
+                Required. A URI to a BigQuery table.
+                Can include "bq://" prefix but not required.
+
+        Returns:
+            List[str]
+                A list of columns names in the BigQuery table.
+        """
+
+        # Remove bq:// prefix
+        prefix = "bq://"
+        if bq_table_uri.startswith(prefix):
+            bq_table_uri = bq_table_uri[len(prefix) :]
+
+        client = bigquery.Client(project=project)
+        table = client.get_table(bq_table_uri)
+        schema = table.schema
+        return [schema.name for schema in schema]
+
     @classmethod
     def create(
         cls,

google/cloud/aiplatform/training_jobs.py

@@ -130,7 +130,6 @@ def __init__(
 
         super().__init__(project=project, location=location, credentials=credentials)
         self._display_name = display_name
-        self._project = project
         self._training_encryption_spec = initializer.global_config.get_encryption_spec(
             encryption_spec_key_name=training_encryption_spec_key_name
         )
@@ -2918,10 +2917,31 @@ def _run(
 
         training_task_definition = schema.training_job.definition.automl_tabular
 
+        if self._column_transformations is None:
+            _LOGGER.info(
+                "No column transformations provided, so now retrieving columns from dataset in order to set default column transformations."
+            )
+
+            column_names = [
+                column_name
+                for column_name in dataset.column_names
+                if column_name != target_column
+            ]
+            column_transformations = [
+                {"auto": {"column_name": column_name}} for column_name in column_names
+            ]
+
+            _LOGGER.info(
+                "The column transformation of type 'auto' was set for the following columns: %s."
+                % column_names
+            )
+        else:
+            column_transformations = self._column_transformations
+
         training_task_inputs_dict = {
             # required inputs
             "targetColumn": target_column,
-            "transformations": self._column_transformations,
+            "transformations": column_transformations,
             "trainBudgetMilliNodeHours": budget_milli_node_hours,
             # optional inputs
             "weightColumnName": weight_column,

tests/system/aiplatform/test_dataset.py

@@ -25,8 +25,8 @@
 from google.api_core import exceptions
 from google.api_core import client_options
 
-from google.cloud import storage
 from google.cloud import aiplatform
+from google.cloud import storage
 from google.cloud.aiplatform import utils
 from google.cloud.aiplatform import initializer
 from google.cloud.aiplatform_v1beta1.types import dataset as gca_dataset

tests/unit/aiplatform/test_automl_tabular_training_jobs.py

@@ -34,10 +34,16 @@
 _TEST_DATASET_DISPLAY_NAME = "test-dataset-display-name"
 _TEST_DATASET_NAME = "test-dataset-name"
 _TEST_DISPLAY_NAME = "test-display-name"
-_TEST_TRAINING_CONTAINER_IMAGE = "gcr.io/test-training/container:image"
 _TEST_METADATA_SCHEMA_URI_TABULAR = schema.dataset.metadata.tabular
 _TEST_METADATA_SCHEMA_URI_NONTABULAR = schema.dataset.metadata.image
 
+_TEST_TRAINING_COLUMN_NAMES = [
+    "sepal_width",
+    "sepal_length",
+    "petal_length",
+    "petal_width",
+]
+
 _TEST_TRAINING_COLUMN_TRANSFORMATIONS = [
     {"auto": {"column_name": "sepal_width"}},
     {"auto": {"column_name": "sepal_length"}},
@@ -169,7 +175,9 @@ def mock_dataset_tabular():
         name=_TEST_DATASET_NAME,
         metadata={},
     )
-    return ds
+    ds.column_names = _TEST_TRAINING_COLUMN_NAMES
+
+    yield ds
 
 
 @pytest.fixture
@@ -347,6 +355,81 @@ def test_run_call_pipeline_if_no_model_display_name(
             training_pipeline=true_training_pipeline,
         )
 
+    @pytest.mark.parametrize("sync", [True, False])
+    # This test checks that default transformations are used if no columns transformations are provided
+    def test_run_call_pipeline_service_create_if_no_column_transformations(
+        self,
+        mock_pipeline_service_create,
+        mock_pipeline_service_get,
+        mock_dataset_tabular,
+        mock_model_service_get,
+        sync,
+    ):
+        aiplatform.init(
+            project=_TEST_PROJECT,
+            staging_bucket=_TEST_BUCKET_NAME,
+            encryption_spec_key_name=_TEST_DEFAULT_ENCRYPTION_KEY_NAME,
+        )
+
+        job = training_jobs.AutoMLTabularTrainingJob(
+            display_name=_TEST_DISPLAY_NAME,
+            optimization_objective=_TEST_TRAINING_OPTIMIZATION_OBJECTIVE_NAME,
+            optimization_prediction_type=_TEST_TRAINING_OPTIMIZATION_PREDICTION_TYPE,
+            column_transformations=None,
+            optimization_objective_recall_value=None,
+            optimization_objective_precision_value=None,
+        )
+
+        model_from_job = job.run(
+            dataset=mock_dataset_tabular,
+            target_column=_TEST_TRAINING_TARGET_COLUMN,
+            model_display_name=_TEST_MODEL_DISPLAY_NAME,
+            training_fraction_split=_TEST_TRAINING_FRACTION_SPLIT,
+            validation_fraction_split=_TEST_VALIDATION_FRACTION_SPLIT,
+            test_fraction_split=_TEST_TEST_FRACTION_SPLIT,
+            predefined_split_column_name=_TEST_PREDEFINED_SPLIT_COLUMN_NAME,
+            weight_column=_TEST_TRAINING_WEIGHT_COLUMN,
+            budget_milli_node_hours=_TEST_TRAINING_BUDGET_MILLI_NODE_HOURS,
+            disable_early_stopping=_TEST_TRAINING_DISABLE_EARLY_STOPPING,
+            sync=sync,
+        )
+
+        if not sync:
+            model_from_job.wait()
+
+        true_fraction_split = gca_training_pipeline.FractionSplit(
+            training_fraction=_TEST_TRAINING_FRACTION_SPLIT,
+            validation_fraction=_TEST_VALIDATION_FRACTION_SPLIT,
+            test_fraction=_TEST_TEST_FRACTION_SPLIT,
+        )
+
+        true_managed_model = gca_model.Model(
+            display_name=_TEST_MODEL_DISPLAY_NAME,
+            encryption_spec=_TEST_DEFAULT_ENCRYPTION_SPEC,
+        )
+
+        true_input_data_config = gca_training_pipeline.InputDataConfig(
+            fraction_split=true_fraction_split,
+            predefined_split=gca_training_pipeline.PredefinedSplit(
+                key=_TEST_PREDEFINED_SPLIT_COLUMN_NAME
+            ),
+            dataset_id=mock_dataset_tabular.name,
+        )
+
+        true_training_pipeline = gca_training_pipeline.TrainingPipeline(
+            display_name=_TEST_DISPLAY_NAME,
+            training_task_definition=schema.training_job.definition.automl_tabular,
+            training_task_inputs=_TEST_TRAINING_TASK_INPUTS,
+            model_to_upload=true_managed_model,
+            input_data_config=true_input_data_config,
+            encryption_spec=_TEST_DEFAULT_ENCRYPTION_SPEC,
+        )
+
+        mock_pipeline_service_create.assert_called_once_with(
+            parent=initializer.global_config.common_location_path(),
+            training_pipeline=true_training_pipeline,
+        )
+
     @pytest.mark.usefixtures(
         "mock_pipeline_service_create",
         "mock_pipeline_service_get",