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|
|
| """Define classes that describe external data sources. |
| |
| These are used for both Table.externalDataConfiguration and |
| Job.configuration.query.tableDefinitions. |
| """ |
|
|
| from __future__ import absolute_import |
|
|
| import base64 |
| import copy |
| from typing import Any, Dict, FrozenSet, Iterable, Optional, Union |
|
|
| from google.cloud.bigquery._helpers import _to_bytes |
| from google.cloud.bigquery._helpers import _bytes_to_json |
| from google.cloud.bigquery._helpers import _int_or_none |
| from google.cloud.bigquery._helpers import _str_or_none |
| from google.cloud.bigquery.format_options import AvroOptions, ParquetOptions |
| from google.cloud.bigquery.schema import SchemaField |
|
|
|
|
| class ExternalSourceFormat(object): |
| """The format for external data files. |
| |
| Note that the set of allowed values for external data sources is different |
| than the set used for loading data (see |
| :class:`~google.cloud.bigquery.job.SourceFormat`). |
| """ |
|
|
| CSV = "CSV" |
| """Specifies CSV format.""" |
|
|
| GOOGLE_SHEETS = "GOOGLE_SHEETS" |
| """Specifies Google Sheets format.""" |
|
|
| NEWLINE_DELIMITED_JSON = "NEWLINE_DELIMITED_JSON" |
| """Specifies newline delimited JSON format.""" |
|
|
| AVRO = "AVRO" |
| """Specifies Avro format.""" |
|
|
| DATASTORE_BACKUP = "DATASTORE_BACKUP" |
| """Specifies datastore backup format""" |
|
|
| ORC = "ORC" |
| """Specifies ORC format.""" |
|
|
| PARQUET = "PARQUET" |
| """Specifies Parquet format.""" |
|
|
| BIGTABLE = "BIGTABLE" |
| """Specifies Bigtable format.""" |
|
|
|
|
| class BigtableColumn(object): |
| """Options for a Bigtable column.""" |
|
|
| def __init__(self): |
| self._properties = {} |
|
|
| @property |
| def encoding(self): |
| """str: The encoding of the values when the type is not `STRING` |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumn.FIELDS.encoding |
| """ |
| return self._properties.get("encoding") |
|
|
| @encoding.setter |
| def encoding(self, value): |
| self._properties["encoding"] = value |
|
|
| @property |
| def field_name(self): |
| """str: An identifier to use if the qualifier is not a valid BigQuery |
| field identifier |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumn.FIELDS.field_name |
| """ |
| return self._properties.get("fieldName") |
|
|
| @field_name.setter |
| def field_name(self, value): |
| self._properties["fieldName"] = value |
|
|
| @property |
| def only_read_latest(self): |
| """bool: If this is set, only the latest version of value in this |
| column are exposed. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumn.FIELDS.only_read_latest |
| """ |
| return self._properties.get("onlyReadLatest") |
|
|
| @only_read_latest.setter |
| def only_read_latest(self, value): |
| self._properties["onlyReadLatest"] = value |
|
|
| @property |
| def qualifier_encoded(self): |
| """Union[str, bytes]: The qualifier encoded in binary. |
| |
| The type is ``str`` (Python 2.x) or ``bytes`` (Python 3.x). The module |
| will handle base64 encoding for you. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumn.FIELDS.qualifier_encoded |
| """ |
| prop = self._properties.get("qualifierEncoded") |
| if prop is None: |
| return None |
| return base64.standard_b64decode(_to_bytes(prop)) |
|
|
| @qualifier_encoded.setter |
| def qualifier_encoded(self, value): |
| self._properties["qualifierEncoded"] = _bytes_to_json(value) |
|
|
| @property |
| def qualifier_string(self): |
| """str: A valid UTF-8 string qualifier |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumn.FIELDS.qualifier_string |
| """ |
| return self._properties.get("qualifierString") |
|
|
| @qualifier_string.setter |
| def qualifier_string(self, value): |
| self._properties["qualifierString"] = value |
|
|
| @property |
| def type_(self): |
| """str: The type to convert the value in cells of this column. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumn.FIELDS.type |
| """ |
| return self._properties.get("type") |
|
|
| @type_.setter |
| def type_(self, value): |
| self._properties["type"] = value |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: |
| A dictionary in the format used by the BigQuery API. |
| """ |
| return copy.deepcopy(self._properties) |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "BigtableColumn": |
| """Factory: construct a :class:`~.external_config.BigtableColumn` |
| instance given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of a :class:`~.external_config.BigtableColumn` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| external_config.BigtableColumn: Configuration parsed from ``resource``. |
| """ |
| config = cls() |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|
|
|
| class BigtableColumnFamily(object): |
| """Options for a Bigtable column family.""" |
|
|
| def __init__(self): |
| self._properties = {} |
|
|
| @property |
| def encoding(self): |
| """str: The encoding of the values when the type is not `STRING` |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumnFamily.FIELDS.encoding |
| """ |
| return self._properties.get("encoding") |
|
|
| @encoding.setter |
| def encoding(self, value): |
| self._properties["encoding"] = value |
|
|
| @property |
| def family_id(self): |
| """str: Identifier of the column family. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumnFamily.FIELDS.family_id |
| """ |
| return self._properties.get("familyId") |
|
|
| @family_id.setter |
| def family_id(self, value): |
| self._properties["familyId"] = value |
|
|
| @property |
| def only_read_latest(self): |
| """bool: If this is set only the latest version of value are exposed |
| for all columns in this column family. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumnFamily.FIELDS.only_read_latest |
| """ |
| return self._properties.get("onlyReadLatest") |
|
|
| @only_read_latest.setter |
| def only_read_latest(self, value): |
| self._properties["onlyReadLatest"] = value |
|
|
| @property |
| def type_(self): |
| """str: The type to convert the value in cells of this column family. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumnFamily.FIELDS.type |
| """ |
| return self._properties.get("type") |
|
|
| @type_.setter |
| def type_(self, value): |
| self._properties["type"] = value |
|
|
| @property |
| def columns(self): |
| """List[BigtableColumn]: Lists of columns |
| that should be exposed as individual fields. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableColumnFamily.FIELDS.columns |
| """ |
| prop = self._properties.get("columns", []) |
| return [BigtableColumn.from_api_repr(col) for col in prop] |
|
|
| @columns.setter |
| def columns(self, value): |
| self._properties["columns"] = [col.to_api_repr() for col in value] |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: |
| A dictionary in the format used by the BigQuery API. |
| """ |
| return copy.deepcopy(self._properties) |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "BigtableColumnFamily": |
| """Factory: construct a :class:`~.external_config.BigtableColumnFamily` |
| instance given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of a :class:`~.external_config.BigtableColumnFamily` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| :class:`~.external_config.BigtableColumnFamily`: |
| Configuration parsed from ``resource``. |
| """ |
| config = cls() |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|
|
|
| class BigtableOptions(object): |
| """Options that describe how to treat Bigtable tables as BigQuery tables.""" |
|
|
| _SOURCE_FORMAT = "BIGTABLE" |
| _RESOURCE_NAME = "bigtableOptions" |
|
|
| def __init__(self): |
| self._properties = {} |
|
|
| @property |
| def ignore_unspecified_column_families(self): |
| """bool: If :data:`True`, ignore columns not specified in |
| :attr:`column_families` list. Defaults to :data:`False`. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableOptions.FIELDS.ignore_unspecified_column_families |
| """ |
| return self._properties.get("ignoreUnspecifiedColumnFamilies") |
|
|
| @ignore_unspecified_column_families.setter |
| def ignore_unspecified_column_families(self, value): |
| self._properties["ignoreUnspecifiedColumnFamilies"] = value |
|
|
| @property |
| def read_rowkey_as_string(self): |
| """bool: If :data:`True`, rowkey column families will be read and |
| converted to string. Defaults to :data:`False`. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableOptions.FIELDS.read_rowkey_as_string |
| """ |
| return self._properties.get("readRowkeyAsString") |
|
|
| @read_rowkey_as_string.setter |
| def read_rowkey_as_string(self, value): |
| self._properties["readRowkeyAsString"] = value |
|
|
| @property |
| def column_families(self): |
| """List[:class:`~.external_config.BigtableColumnFamily`]: List of |
| column families to expose in the table schema along with their types. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#BigtableOptions.FIELDS.column_families |
| """ |
| prop = self._properties.get("columnFamilies", []) |
| return [BigtableColumnFamily.from_api_repr(cf) for cf in prop] |
|
|
| @column_families.setter |
| def column_families(self, value): |
| self._properties["columnFamilies"] = [cf.to_api_repr() for cf in value] |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: |
| A dictionary in the format used by the BigQuery API. |
| """ |
| return copy.deepcopy(self._properties) |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "BigtableOptions": |
| """Factory: construct a :class:`~.external_config.BigtableOptions` |
| instance given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of a :class:`~.external_config.BigtableOptions` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| BigtableOptions: Configuration parsed from ``resource``. |
| """ |
| config = cls() |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|
|
|
| class CSVOptions(object): |
| """Options that describe how to treat CSV files as BigQuery tables.""" |
|
|
| _SOURCE_FORMAT = "CSV" |
| _RESOURCE_NAME = "csvOptions" |
|
|
| def __init__(self): |
| self._properties = {} |
|
|
| @property |
| def allow_jagged_rows(self): |
| """bool: If :data:`True`, BigQuery treats missing trailing columns as |
| null values. Defaults to :data:`False`. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.allow_jagged_rows |
| """ |
| return self._properties.get("allowJaggedRows") |
|
|
| @allow_jagged_rows.setter |
| def allow_jagged_rows(self, value): |
| self._properties["allowJaggedRows"] = value |
|
|
| @property |
| def allow_quoted_newlines(self): |
| """bool: If :data:`True`, quoted data sections that contain newline |
| characters in a CSV file are allowed. Defaults to :data:`False`. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.allow_quoted_newlines |
| """ |
| return self._properties.get("allowQuotedNewlines") |
|
|
| @allow_quoted_newlines.setter |
| def allow_quoted_newlines(self, value): |
| self._properties["allowQuotedNewlines"] = value |
|
|
| @property |
| def encoding(self): |
| """str: The character encoding of the data. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.encoding |
| """ |
| return self._properties.get("encoding") |
|
|
| @encoding.setter |
| def encoding(self, value): |
| self._properties["encoding"] = value |
|
|
| @property |
| def preserve_ascii_control_characters(self): |
| """bool: Indicates if the embedded ASCII control characters |
| (the first 32 characters in the ASCII-table, from '\x00' to '\x1F') are preserved. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.preserve_ascii_control_characters |
| """ |
| return self._properties.get("preserveAsciiControlCharacters") |
|
|
| @preserve_ascii_control_characters.setter |
| def preserve_ascii_control_characters(self, value): |
| self._properties["preserveAsciiControlCharacters"] = value |
|
|
| @property |
| def field_delimiter(self): |
| """str: The separator for fields in a CSV file. Defaults to comma (','). |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.field_delimiter |
| """ |
| return self._properties.get("fieldDelimiter") |
|
|
| @field_delimiter.setter |
| def field_delimiter(self, value): |
| self._properties["fieldDelimiter"] = value |
|
|
| @property |
| def quote_character(self): |
| """str: The value that is used to quote data sections in a CSV file. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.quote |
| """ |
| return self._properties.get("quote") |
|
|
| @quote_character.setter |
| def quote_character(self, value): |
| self._properties["quote"] = value |
|
|
| @property |
| def skip_leading_rows(self): |
| """int: The number of rows at the top of a CSV file. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#CsvOptions.FIELDS.skip_leading_rows |
| """ |
| return _int_or_none(self._properties.get("skipLeadingRows")) |
|
|
| @skip_leading_rows.setter |
| def skip_leading_rows(self, value): |
| self._properties["skipLeadingRows"] = str(value) |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: A dictionary in the format used by the BigQuery API. |
| """ |
| return copy.deepcopy(self._properties) |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "CSVOptions": |
| """Factory: construct a :class:`~.external_config.CSVOptions` instance |
| given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of a :class:`~.external_config.CSVOptions` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| CSVOptions: Configuration parsed from ``resource``. |
| """ |
| config = cls() |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|
|
|
| class GoogleSheetsOptions(object): |
| """Options that describe how to treat Google Sheets as BigQuery tables.""" |
|
|
| _SOURCE_FORMAT = "GOOGLE_SHEETS" |
| _RESOURCE_NAME = "googleSheetsOptions" |
|
|
| def __init__(self): |
| self._properties = {} |
|
|
| @property |
| def skip_leading_rows(self): |
| """int: The number of rows at the top of a sheet that BigQuery will |
| skip when reading the data. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#GoogleSheetsOptions.FIELDS.skip_leading_rows |
| """ |
| return _int_or_none(self._properties.get("skipLeadingRows")) |
|
|
| @skip_leading_rows.setter |
| def skip_leading_rows(self, value): |
| self._properties["skipLeadingRows"] = str(value) |
|
|
| @property |
| def range(self): |
| """str: The range of a sheet that BigQuery will query from. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#GoogleSheetsOptions.FIELDS.range |
| """ |
| return _str_or_none(self._properties.get("range")) |
|
|
| @range.setter |
| def range(self, value): |
| self._properties["range"] = value |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: A dictionary in the format used by the BigQuery API. |
| """ |
| return copy.deepcopy(self._properties) |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "GoogleSheetsOptions": |
| """Factory: construct a :class:`~.external_config.GoogleSheetsOptions` |
| instance given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of a :class:`~.external_config.GoogleSheetsOptions` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| GoogleSheetsOptions: Configuration parsed from ``resource``. |
| """ |
| config = cls() |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|
|
|
| _OPTION_CLASSES = ( |
| AvroOptions, |
| BigtableOptions, |
| CSVOptions, |
| GoogleSheetsOptions, |
| ParquetOptions, |
| ) |
|
|
| OptionsType = Union[ |
| AvroOptions, |
| BigtableOptions, |
| CSVOptions, |
| GoogleSheetsOptions, |
| ParquetOptions, |
| ] |
|
|
|
|
| class HivePartitioningOptions(object): |
| """[Beta] Options that configure hive partitioning. |
| |
| .. note:: |
| **Experimental**. This feature is experimental and might change or |
| have limited support. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#HivePartitioningOptions |
| """ |
|
|
| def __init__(self) -> None: |
| self._properties: Dict[str, Any] = {} |
|
|
| @property |
| def mode(self): |
| """Optional[str]: When set, what mode of hive partitioning to use when reading data. |
| |
| Two modes are supported: "AUTO" and "STRINGS". |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#HivePartitioningOptions.FIELDS.mode |
| """ |
| return self._properties.get("mode") |
|
|
| @mode.setter |
| def mode(self, value): |
| self._properties["mode"] = value |
|
|
| @property |
| def source_uri_prefix(self): |
| """Optional[str]: When hive partition detection is requested, a common prefix for |
| all source URIs is required. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#HivePartitioningOptions.FIELDS.source_uri_prefix |
| """ |
| return self._properties.get("sourceUriPrefix") |
|
|
| @source_uri_prefix.setter |
| def source_uri_prefix(self, value): |
| self._properties["sourceUriPrefix"] = value |
|
|
| @property |
| def require_partition_filter(self): |
| """Optional[bool]: If set to true, queries over the partitioned table require a |
| partition filter that can be used for partition elimination to be |
| specified. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#HivePartitioningOptions.FIELDS.mode |
| """ |
| return self._properties.get("requirePartitionFilter") |
|
|
| @require_partition_filter.setter |
| def require_partition_filter(self, value): |
| self._properties["requirePartitionFilter"] = value |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: A dictionary in the format used by the BigQuery API. |
| """ |
| return copy.deepcopy(self._properties) |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "HivePartitioningOptions": |
| """Factory: construct a :class:`~.external_config.HivePartitioningOptions` |
| instance given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of a :class:`~.external_config.HivePartitioningOptions` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| HivePartitioningOptions: Configuration parsed from ``resource``. |
| """ |
| config = cls() |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|
|
|
| class ExternalConfig(object): |
| """Description of an external data source. |
| |
| Args: |
| source_format (ExternalSourceFormat): |
| See :attr:`source_format`. |
| """ |
|
|
| def __init__(self, source_format) -> None: |
| self._properties = {"sourceFormat": source_format} |
|
|
| @property |
| def source_format(self): |
| """:class:`~.external_config.ExternalSourceFormat`: |
| Format of external source. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.source_format |
| """ |
| return self._properties["sourceFormat"] |
|
|
| @property |
| def options(self) -> Optional[OptionsType]: |
| """Source-specific options.""" |
| for optcls in _OPTION_CLASSES: |
| |
| if self.source_format == optcls._SOURCE_FORMAT: |
| options: OptionsType = optcls() |
| options._properties = self._properties.setdefault( |
| optcls._RESOURCE_NAME, {} |
| ) |
| return options |
|
|
| |
| return None |
|
|
| @property |
| def autodetect(self): |
| """bool: If :data:`True`, try to detect schema and format options |
| automatically. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.autodetect |
| """ |
| return self._properties.get("autodetect") |
|
|
| @autodetect.setter |
| def autodetect(self, value): |
| self._properties["autodetect"] = value |
|
|
| @property |
| def compression(self): |
| """str: The compression type of the data source. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.compression |
| """ |
| return self._properties.get("compression") |
|
|
| @compression.setter |
| def compression(self, value): |
| self._properties["compression"] = value |
|
|
| @property |
| def decimal_target_types(self) -> Optional[FrozenSet[str]]: |
| """Possible SQL data types to which the source decimal values are converted. |
| |
| See: |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.decimal_target_types |
| |
| .. versionadded:: 2.21.0 |
| """ |
| prop = self._properties.get("decimalTargetTypes") |
| if prop is not None: |
| prop = frozenset(prop) |
| return prop |
|
|
| @decimal_target_types.setter |
| def decimal_target_types(self, value: Optional[Iterable[str]]): |
| if value is not None: |
| self._properties["decimalTargetTypes"] = list(value) |
| else: |
| if "decimalTargetTypes" in self._properties: |
| del self._properties["decimalTargetTypes"] |
|
|
| @property |
| def hive_partitioning(self): |
| """Optional[:class:`~.external_config.HivePartitioningOptions`]: [Beta] When set, \ |
| it configures hive partitioning support. |
| |
| .. note:: |
| **Experimental**. This feature is experimental and might change or |
| have limited support. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.hive_partitioning_options |
| """ |
| prop = self._properties.get("hivePartitioningOptions") |
| if prop is None: |
| return None |
| return HivePartitioningOptions.from_api_repr(prop) |
|
|
| @hive_partitioning.setter |
| def hive_partitioning(self, value): |
| prop = value.to_api_repr() if value is not None else None |
| self._properties["hivePartitioningOptions"] = prop |
|
|
| @property |
| def reference_file_schema_uri(self): |
| """Optional[str]: |
| When creating an external table, the user can provide a reference file with the |
| table schema. This is enabled for the following formats: |
| |
| AVRO, PARQUET, ORC |
| """ |
| return self._properties.get("referenceFileSchemaUri") |
|
|
| @reference_file_schema_uri.setter |
| def reference_file_schema_uri(self, value): |
| self._properties["referenceFileSchemaUri"] = value |
|
|
| @property |
| def ignore_unknown_values(self): |
| """bool: If :data:`True`, extra values that are not represented in the |
| table schema are ignored. Defaults to :data:`False`. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.ignore_unknown_values |
| """ |
| return self._properties.get("ignoreUnknownValues") |
|
|
| @ignore_unknown_values.setter |
| def ignore_unknown_values(self, value): |
| self._properties["ignoreUnknownValues"] = value |
|
|
| @property |
| def max_bad_records(self): |
| """int: The maximum number of bad records that BigQuery can ignore when |
| reading data. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.max_bad_records |
| """ |
| return self._properties.get("maxBadRecords") |
|
|
| @max_bad_records.setter |
| def max_bad_records(self, value): |
| self._properties["maxBadRecords"] = value |
|
|
| @property |
| def source_uris(self): |
| """List[str]: URIs that point to your data in Google Cloud. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.source_uris |
| """ |
| return self._properties.get("sourceUris", []) |
|
|
| @source_uris.setter |
| def source_uris(self, value): |
| self._properties["sourceUris"] = value |
|
|
| @property |
| def schema(self): |
| """List[:class:`~google.cloud.bigquery.schema.SchemaField`]: The schema |
| for the data. |
| |
| See |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.schema |
| """ |
| prop = self._properties.get("schema", {}) |
| return [SchemaField.from_api_repr(field) for field in prop.get("fields", [])] |
|
|
| @schema.setter |
| def schema(self, value): |
| prop = value |
| if value is not None: |
| prop = {"fields": [field.to_api_repr() for field in value]} |
| self._properties["schema"] = prop |
|
|
| @property |
| def connection_id(self): |
| """Optional[str]: [Experimental] ID of a BigQuery Connection API |
| resource. |
| |
| .. WARNING:: |
| |
| This feature is experimental. Pre-GA features may have limited |
| support, and changes to pre-GA features may not be compatible with |
| other pre-GA versions. |
| """ |
| return self._properties.get("connectionId") |
|
|
| @connection_id.setter |
| def connection_id(self, value): |
| self._properties["connectionId"] = value |
|
|
| @property |
| def avro_options(self) -> Optional[AvroOptions]: |
| """Additional properties to set if ``sourceFormat`` is set to AVRO. |
| |
| See: |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.avro_options |
| """ |
| if self.source_format == ExternalSourceFormat.AVRO: |
| self._properties.setdefault(AvroOptions._RESOURCE_NAME, {}) |
| resource = self._properties.get(AvroOptions._RESOURCE_NAME) |
| if resource is None: |
| return None |
| options = AvroOptions() |
| options._properties = resource |
| return options |
|
|
| @avro_options.setter |
| def avro_options(self, value): |
| if self.source_format != ExternalSourceFormat.AVRO: |
| msg = f"Cannot set Avro options, source format is {self.source_format}" |
| raise TypeError(msg) |
| self._properties[AvroOptions._RESOURCE_NAME] = value._properties |
|
|
| @property |
| def bigtable_options(self) -> Optional[BigtableOptions]: |
| """Additional properties to set if ``sourceFormat`` is set to BIGTABLE. |
| |
| See: |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.bigtable_options |
| """ |
| if self.source_format == ExternalSourceFormat.BIGTABLE: |
| self._properties.setdefault(BigtableOptions._RESOURCE_NAME, {}) |
| resource = self._properties.get(BigtableOptions._RESOURCE_NAME) |
| if resource is None: |
| return None |
| options = BigtableOptions() |
| options._properties = resource |
| return options |
|
|
| @bigtable_options.setter |
| def bigtable_options(self, value): |
| if self.source_format != ExternalSourceFormat.BIGTABLE: |
| msg = f"Cannot set Bigtable options, source format is {self.source_format}" |
| raise TypeError(msg) |
| self._properties[BigtableOptions._RESOURCE_NAME] = value._properties |
|
|
| @property |
| def csv_options(self) -> Optional[CSVOptions]: |
| """Additional properties to set if ``sourceFormat`` is set to CSV. |
| |
| See: |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.csv_options |
| """ |
| if self.source_format == ExternalSourceFormat.CSV: |
| self._properties.setdefault(CSVOptions._RESOURCE_NAME, {}) |
| resource = self._properties.get(CSVOptions._RESOURCE_NAME) |
| if resource is None: |
| return None |
| options = CSVOptions() |
| options._properties = resource |
| return options |
|
|
| @csv_options.setter |
| def csv_options(self, value): |
| if self.source_format != ExternalSourceFormat.CSV: |
| msg = f"Cannot set CSV options, source format is {self.source_format}" |
| raise TypeError(msg) |
| self._properties[CSVOptions._RESOURCE_NAME] = value._properties |
|
|
| @property |
| def google_sheets_options(self) -> Optional[GoogleSheetsOptions]: |
| """Additional properties to set if ``sourceFormat`` is set to |
| GOOGLE_SHEETS. |
| |
| See: |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.google_sheets_options |
| """ |
| if self.source_format == ExternalSourceFormat.GOOGLE_SHEETS: |
| self._properties.setdefault(GoogleSheetsOptions._RESOURCE_NAME, {}) |
| resource = self._properties.get(GoogleSheetsOptions._RESOURCE_NAME) |
| if resource is None: |
| return None |
| options = GoogleSheetsOptions() |
| options._properties = resource |
| return options |
|
|
| @google_sheets_options.setter |
| def google_sheets_options(self, value): |
| if self.source_format != ExternalSourceFormat.GOOGLE_SHEETS: |
| msg = f"Cannot set Google Sheets options, source format is {self.source_format}" |
| raise TypeError(msg) |
| self._properties[GoogleSheetsOptions._RESOURCE_NAME] = value._properties |
|
|
| @property |
| def parquet_options(self) -> Optional[ParquetOptions]: |
| """Additional properties to set if ``sourceFormat`` is set to PARQUET. |
| |
| See: |
| https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.parquet_options |
| """ |
| if self.source_format == ExternalSourceFormat.PARQUET: |
| self._properties.setdefault(ParquetOptions._RESOURCE_NAME, {}) |
| resource = self._properties.get(ParquetOptions._RESOURCE_NAME) |
| if resource is None: |
| return None |
| options = ParquetOptions() |
| options._properties = resource |
| return options |
|
|
| @parquet_options.setter |
| def parquet_options(self, value): |
| if self.source_format != ExternalSourceFormat.PARQUET: |
| msg = f"Cannot set Parquet options, source format is {self.source_format}" |
| raise TypeError(msg) |
| self._properties[ParquetOptions._RESOURCE_NAME] = value._properties |
|
|
| def to_api_repr(self) -> dict: |
| """Build an API representation of this object. |
| |
| Returns: |
| Dict[str, Any]: |
| A dictionary in the format used by the BigQuery API. |
| """ |
| config = copy.deepcopy(self._properties) |
| return config |
|
|
| @classmethod |
| def from_api_repr(cls, resource: dict) -> "ExternalConfig": |
| """Factory: construct an :class:`~.external_config.ExternalConfig` |
| instance given its API representation. |
| |
| Args: |
| resource (Dict[str, Any]): |
| Definition of an :class:`~.external_config.ExternalConfig` |
| instance in the same representation as is returned from the |
| API. |
| |
| Returns: |
| ExternalConfig: Configuration parsed from ``resource``. |
| """ |
| config = cls(resource["sourceFormat"]) |
| config._properties = copy.deepcopy(resource) |
| return config |
|
|