mirror of
https://github.com/datahub-project/datahub.git
synced 2025-06-27 05:03:31 +00:00
54 lines
1.5 KiB
Python
54 lines
1.5 KiB
Python
|
import datahub.emitter.mce_builder as builder
|
||
|
|
from datahub.emitter.mcp import MetadataChangeProposalWrapper
|
||
|
|
from datahub.emitter.rest_emitter import DatahubRestEmitter
|
||
|
|
from datahub.metadata.com.linkedin.pegasus2avro.dataset import (
|
||
|
|
DatasetLineageType,
|
||
|
|
FineGrainedLineage,
|
||
|
|
FineGrainedLineageDownstreamType,
|
||
|
|
FineGrainedLineageUpstreamType,
|
||
|
|
Upstream,
|
||
|
|
UpstreamLineage,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def datasetUrn(tbl):
|
||
|
|
return builder.make_dataset_urn("hive", tbl)
|
||
|
|
|
||
|
|
|
||
|
|
def fldUrn(tbl, fld):
|
||
|
|
return builder.make_schema_field_urn(datasetUrn(tbl), fld)
|
||
|
|
|
||
|
|
|
||
|
|
fineGrainedLineages = [
|
||
|
|
FineGrainedLineage(
|
||
|
|
upstreamType=FineGrainedLineageUpstreamType.FIELD_SET,
|
||
|
|
upstreams=[
|
||
|
|
fldUrn("fct_users_deleted", "browser_id"),
|
||
|
|
fldUrn("fct_users_created", "user_id"),
|
||
|
|
],
|
||
|
|
downstreamType=FineGrainedLineageDownstreamType.FIELD,
|
||
|
|
downstreams=[fldUrn("logging_events", "browser")],
|
||
|
|
),
|
||
|
|
]
|
||
|
|
|
||
|
|
|
||
|
|
# this is just to check if any conflicts with existing Upstream, particularly the DownstreamOf relationship
|
||
|
|
upstream = Upstream(
|
||
|
|
dataset=datasetUrn("fct_users_deleted"), type=DatasetLineageType.TRANSFORMED
|
||
|
|
)
|
||
|
|
|
||
|
|
fieldLineages = UpstreamLineage(
|
||
|
|
upstreams=[upstream], fineGrainedLineages=fineGrainedLineages
|
||
|
|
)
|
||
|
|
|
||
|
|
lineageMcp = MetadataChangeProposalWrapper(
|
||
|
|
entityUrn=datasetUrn("logging_events"),
|
||
|
|
aspect=fieldLineages,
|
||
|
|
)
|
||
|
|
|
||
|
|
# Create an emitter to the GMS REST API.
|
||
|
|
emitter = DatahubRestEmitter("http://localhost:8080")
|
||
|
|
|
||
|
|
# Emit metadata!
|
||
|
|
emitter.emit_mcp(lineageMcp)
|