forked from datahub-project/datahub
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
docs(model): auto-generated docs and hand-written docs for the metada…
…ta model (datahub-project#4189)
- Loading branch information
1 parent
db8c215
commit eaf7b02
Showing
27 changed files
with
1,173 additions
and
65 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
110 changes: 110 additions & 0 deletions
110
metadata-ingestion/examples/library/dataset_add_column_tag.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| import logging | ||
| import time | ||
|
|
||
| from datahub.emitter.mce_builder import make_dataset_urn, make_tag_urn | ||
| from datahub.emitter.mcp import MetadataChangeProposalWrapper | ||
|
|
||
| # read-modify-write requires access to the DataHubGraph (RestEmitter is not enough) | ||
| from datahub.ingestion.graph.client import DatahubClientConfig, DataHubGraph | ||
|
|
||
| # Imports for metadata model classes | ||
| from datahub.metadata.schema_classes import ( | ||
| AuditStampClass, | ||
| ChangeTypeClass, | ||
| EditableSchemaFieldInfoClass, | ||
| EditableSchemaMetadataClass, | ||
| GlobalTagsClass, | ||
| TagAssociationClass, | ||
| ) | ||
|
|
||
| log = logging.getLogger(__name__) | ||
| logging.basicConfig(level=logging.INFO) | ||
|
|
||
|
|
||
| def get_simple_field_path_from_v2_field_path(field_path: str) -> str: | ||
| """A helper function to extract simple . path notation from the v2 field path""" | ||
| if field_path.startswith("[version=2.0]"): | ||
| # this is a v2 field path | ||
| tokens = [ | ||
| t | ||
| for t in field_path.split(".") | ||
| if not (t.startswith("[") or t.endswith("]")) | ||
| ] | ||
| path = ".".join(tokens) | ||
| return path | ||
| else: | ||
| # not a v2, we assume this is a simple path | ||
| return field_path | ||
|
|
||
|
|
||
| # Inputs -> the column, dataset and the tag to set | ||
| column = "address.zipcode" | ||
| dataset_urn = make_dataset_urn(platform="hive", name="realestate_db.sales", env="PROD") | ||
| tag_to_add = make_tag_urn("location") | ||
|
|
||
|
|
||
| # First we get the current editable schema metadata | ||
| gms_endpoint = "http://localhost:8080" | ||
| graph = DataHubGraph(DatahubClientConfig(server=gms_endpoint)) | ||
|
|
||
|
|
||
| current_editable_schema_metadata = graph.get_aspect( | ||
| entity_urn=dataset_urn, | ||
| aspect="editableSchemaMetadata", | ||
| aspect_type=EditableSchemaMetadataClass, | ||
| ) | ||
|
|
||
|
|
||
| # Some pre-built objects to help all the conditional pathways | ||
| tag_association_to_add = TagAssociationClass(tag=tag_to_add) | ||
| tags_aspect_to_set = GlobalTagsClass(tags=[tag_association_to_add]) | ||
| field_info_to_set = EditableSchemaFieldInfoClass( | ||
| fieldPath=column, globalTags=tags_aspect_to_set | ||
| ) | ||
|
|
||
|
|
||
| need_write = False | ||
| field_match = False | ||
| if current_editable_schema_metadata: | ||
| for fieldInfo in current_editable_schema_metadata.editableSchemaFieldInfo: | ||
| if get_simple_field_path_from_v2_field_path(fieldInfo.fieldPath) == column: | ||
| # we have some editable schema metadata for this field | ||
| field_match = True | ||
| if fieldInfo.globalTags: | ||
| if tag_to_add not in [x.tag for x in fieldInfo.globalTags.tags]: | ||
| # this tag is not present | ||
| fieldInfo.globalTags.tags.append(tag_association_to_add) | ||
| need_write = True | ||
| else: | ||
| fieldInfo.globalTags = tags_aspect_to_set | ||
| need_write = True | ||
|
|
||
| if not field_match: | ||
| # this field isn't present in the editable schema metadata aspect, add it | ||
| field_info = field_info_to_set | ||
| current_editable_schema_metadata.editableSchemaFieldInfo.append(field_info) | ||
| need_write = True | ||
|
|
||
| else: | ||
| # create a brand new editable schema metadata aspect | ||
| now = int(time.time() * 1000) # milliseconds since epoch | ||
| current_timestamp = AuditStampClass(time=now, actor="urn:li:corpuser:ingestion") | ||
| current_editable_schema_metadata = EditableSchemaMetadataClass( | ||
| editableSchemaFieldInfo=[field_info_to_set], | ||
| created=current_timestamp, | ||
| ) | ||
| need_write = True | ||
|
|
||
| if need_write: | ||
| event: MetadataChangeProposalWrapper = MetadataChangeProposalWrapper( | ||
| entityType="dataset", | ||
| changeType=ChangeTypeClass.UPSERT, | ||
| entityUrn=dataset_urn, | ||
| aspectName="editableSchemaMetadata", | ||
| aspect=current_editable_schema_metadata, | ||
| ) | ||
| graph.emit(event) | ||
| log.info(f"Tag {tag_to_add} added to column {column} of dataset {dataset_urn}") | ||
|
|
||
| else: | ||
| log.info(f"Tag {tag_to_add} already attached to column {column}, omitting write") |
Oops, something went wrong.