feat(ingest): support domains in meta -> "datahub" section

metadata-ingestion/setup.py

@@ -113,6 +113,11 @@
     "numpy<2",
 }
 
+dbt_common = {
+    *sqlglot_lib,
+    "more_itertools",
+}
+
 sql_common = (
     {
         # Required for all SQL sources.
@@ -352,8 +357,8 @@
     "datahub-lineage-file": set(),
     "datahub-business-glossary": set(),
     "delta-lake": {*data_lake_profiling, *delta_lake},
-    "dbt": {"requests"} | sqlglot_lib | aws_common,
-    "dbt-cloud": {"requests"} | sqlglot_lib,
+    "dbt": {"requests"} | dbt_common | aws_common,
+    "dbt-cloud": {"requests"} | dbt_common,
     "druid": sql_common | {"pydruid>=0.6.2"},
     "dynamodb": aws_common | classification_lib,
     # Starting with 7.14.0 python client is checking if it is connected to elasticsearch client. If its not it throws

metadata-ingestion/src/datahub/emitter/mce_builder.py

@@ -23,6 +23,7 @@
 )
 
 import typing_inspect
+from avrogen.dict_wrapper import DictWrapper
 
 from datahub.configuration.source_common import DEFAULT_ENV as DEFAULT_ENV_CONFIGURATION
 from datahub.metadata.schema_classes import (
@@ -412,9 +413,9 @@ def make_lineage_mce(
     return mce
 
 
-def can_add_aspect(mce: MetadataChangeEventClass, AspectType: Type[Aspect]) -> bool:
-    SnapshotType = type(mce.proposedSnapshot)
-
+def can_add_aspect_to_snapshot(
+    SnapshotType: Type[DictWrapper], AspectType: Type[Aspect]
+) -> bool:
     constructor_annotations = get_type_hints(SnapshotType.__init__)
     aspect_list_union = typing_inspect.get_args(constructor_annotations["aspects"])[0]
 
@@ -423,6 +424,12 @@ def can_add_aspect(mce: MetadataChangeEventClass, AspectType: Type[Aspect]) -> b
     return issubclass(AspectType, supported_aspect_types)
 
 
+def can_add_aspect(mce: MetadataChangeEventClass, AspectType: Type[Aspect]) -> bool:
+    SnapshotType = type(mce.proposedSnapshot)
+
+    return can_add_aspect_to_snapshot(SnapshotType, AspectType)
+
+
 def assert_can_add_aspect(
     mce: MetadataChangeEventClass, AspectType: Type[Aspect]
 ) -> None:

metadata-ingestion/src/datahub/ingestion/source/dbt/dbt_common.py

@@ -7,6 +7,7 @@
 from enum import auto
 from typing import Any, Dict, Iterable, List, Optional, Tuple
 
+import more_itertools
 import pydantic
 from pydantic import root_validator, validator
 from pydantic.fields import Field
@@ -1309,8 +1310,23 @@ def create_dbt_platform_mces(
                     aspect=self._make_data_platform_instance_aspect(),
                 ).as_workunit()
 
+                standalone_aspects, snapshot_aspects = more_itertools.partition(
+                    (
+                        lambda aspect: mce_builder.can_add_aspect_to_snapshot(
+                            DatasetSnapshot, type(aspect)
+                        )
+                    ),
+                    aspects,
+                )
+                for aspect in standalone_aspects:
+                    # The domains aspect, and some others, may not support being added to the snapshot.
+                    yield MetadataChangeProposalWrapper(
+                        entityUrn=node_datahub_urn,
+                        aspect=aspect,
+                    ).as_workunit()
+
                 dataset_snapshot = DatasetSnapshot(
-                    urn=node_datahub_urn, aspects=aspects
+                    urn=node_datahub_urn, aspects=list(snapshot_aspects)
                 )
                 mce = MetadataChangeEvent(proposedSnapshot=dataset_snapshot)
                 if self.config.write_semantics == "PATCH":
@@ -1588,6 +1604,10 @@ def _generate_base_dbt_aspects(
         ):
             aspects.append(meta_aspects.get(Constants.ADD_TERM_OPERATION))
 
+        # add meta domains aspect
+        if meta_aspects.get(Constants.ADD_DOMAIN_OPERATION):
+            aspects.append(meta_aspects.get(Constants.ADD_DOMAIN_OPERATION))
+
         # add meta links aspect
         meta_links_aspect = meta_aspects.get(Constants.ADD_DOC_LINK_OPERATION)
         if meta_links_aspect and self.config.enable_meta_mapping:

metadata-ingestion/src/datahub/utilities/mapping.py

@@ -15,6 +15,7 @@
 )
 from datahub.metadata.schema_classes import (
     AuditStampClass,
+    DomainsClass,
     InstitutionalMemoryClass,
     InstitutionalMemoryMetadataClass,
     OwnerClass,
@@ -70,6 +71,8 @@ class Constants:
     ADD_TERM_OPERATION = "add_term"
     ADD_TERMS_OPERATION = "add_terms"
     ADD_OWNER_OPERATION = "add_owner"
+    ADD_DOMAIN_OPERATION = "add_domain"
+
     OPERATION = "operation"
     OPERATION_CONFIG = "config"
     TAG = "tag"
@@ -94,9 +97,15 @@ class _MappingOwner(ConfigModel):
 
 
 class _DatahubProps(ConfigModel):
-    owners: List[Union[str, _MappingOwner]]
+    tags: Optional[List[str]] = None
+    terms: Optional[List[str]] = None
+    owners: Optional[List[Union[str, _MappingOwner]]] = None
+    domain: Optional[str] = None
 
     def make_owner_category_list(self) -> List[Dict]:
+        if self.owners is None:
+            return []
+
         res = []
         for owner in self.owners:
             if isinstance(owner, str):
@@ -176,26 +185,29 @@ def process(self, raw_props: Mapping[str, Any]) -> Dict[str, Any]:  # noqa: C901
         # Process the special "datahub" property, which supports tags, terms, and owners.
         operations_map: Dict[str, list] = {}
         try:
-            datahub_prop = raw_props.get("datahub")
-            if datahub_prop and isinstance(datahub_prop, dict):
-                if datahub_prop.get("tags"):
+            raw_datahub_prop = raw_props.get("datahub")
+            if raw_datahub_prop:
+                datahub_prop = _DatahubProps.parse_obj_allow_extras(raw_datahub_prop)
+                if datahub_prop.tags:
                     # Note that tags get converted to urns later because we need to support the tag prefix.
-                    tags = datahub_prop["tags"]
                     operations_map.setdefault(Constants.ADD_TAG_OPERATION, []).extend(
-                        tags
+                        datahub_prop.tags
                     )
 
-                if datahub_prop.get("terms"):
-                    terms = datahub_prop["terms"]
+                if datahub_prop.terms:
                     operations_map.setdefault(Constants.ADD_TERM_OPERATION, []).extend(
-                        mce_builder.make_term_urn(term) for term in terms
+                        mce_builder.make_term_urn(term) for term in datahub_prop.terms
                     )
 
-                if datahub_prop.get("owners"):
-                    owners = _DatahubProps.parse_obj_allow_extras(datahub_prop)
+                if datahub_prop.owners:
                     operations_map.setdefault(Constants.ADD_OWNER_OPERATION, []).extend(
-                        owners.make_owner_category_list()
+                        datahub_prop.make_owner_category_list()
                     )
+
+                if datahub_prop.domain:
+                    operations_map.setdefault(
+                        Constants.ADD_DOMAIN_OPERATION, []
+                    ).append(mce_builder.make_domain_urn(datahub_prop.domain))
         except Exception as e:
             logger.error(f"Error while processing datahub property: {e}")
 
@@ -299,6 +311,15 @@ def convert_to_aspects(self, operation_map: Dict[str, list]) -> Dict[str, Any]:
             )
             aspect_map[Constants.ADD_TERM_OPERATION] = term_aspect
 
+        if Constants.ADD_DOMAIN_OPERATION in operation_map:
+            domain_aspect = DomainsClass(
+                domains=[
+                    mce_builder.make_domain_urn(domain)
+                    for domain in operation_map[Constants.ADD_DOMAIN_OPERATION]
+                ]
+            )
+            aspect_map[Constants.ADD_DOMAIN_OPERATION] = domain_aspect
+
         if Constants.ADD_DOC_LINK_OPERATION in operation_map:
             try:
                 if len(

metadata-ingestion/tests/unit/test_mapping.py

@@ -2,6 +2,7 @@
 
 from datahub.metadata.com.linkedin.pegasus2avro.common import GlobalTags
 from datahub.metadata.schema_classes import (
+    DomainsClass,
     GlobalTagsClass,
     GlossaryTermsClass,
     InstitutionalMemoryClass,
@@ -366,6 +367,7 @@ def test_operation_processor_datahub_props():
                     "owner_type": "urn:li:ownershipType:steward",
                 },
             ],
+            "domain": "domain1",
         }
     }
 
@@ -396,3 +398,6 @@ def test_operation_processor_datahub_props():
     assert [
         term_association.urn for term_association in aspect_map["add_term"].terms
     ] == ["urn:li:glossaryTerm:term1", "urn:li:glossaryTerm:term2"]
+
+    assert isinstance(aspect_map["add_domain"], DomainsClass)
+    assert aspect_map["add_domain"].domains == ["urn:li:domain:domain1"]