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fix(ingest/abs): split abs utils into multiple files (datahub-project…
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66 changes: 66 additions & 0 deletions
66
metadata-ingestion/src/datahub/ingestion/source/azure/abs_utils.py
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Original file line number | Diff line number | Diff line change |
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import os | ||
import re | ||
from typing import Optional | ||
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# This file should not import any abs spectific modules as we import it in path_spec.py in datat_lake_common.py | ||
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ABS_PREFIXES_REGEX = re.compile( | ||
r"(http[s]?://[a-z0-9]{3,24}\.blob\.core\.windows\.net/)" | ||
) | ||
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def is_abs_uri(uri: str) -> bool: | ||
return bool(ABS_PREFIXES_REGEX.match(uri)) | ||
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def get_abs_prefix(abs_uri: str) -> Optional[str]: | ||
result = re.search(ABS_PREFIXES_REGEX, abs_uri) | ||
if result and result.groups(): | ||
return result.group(1) | ||
return None | ||
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def strip_abs_prefix(abs_uri: str) -> str: | ||
# remove abs prefix https://<storage-account>.blob.core.windows.net | ||
abs_prefix = get_abs_prefix(abs_uri) | ||
if not abs_prefix: | ||
raise ValueError( | ||
f"Not an Azure Blob Storage URI. Must match the following regular expression: {str(ABS_PREFIXES_REGEX)}" | ||
) | ||
length_abs_prefix = len(abs_prefix) | ||
return abs_uri[length_abs_prefix:] | ||
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def make_abs_urn(abs_uri: str, env: str) -> str: | ||
abs_name = strip_abs_prefix(abs_uri) | ||
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if abs_name.endswith("/"): | ||
abs_name = abs_name[:-1] | ||
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name, extension = os.path.splitext(abs_name) | ||
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if extension != "": | ||
extension = extension[1:] # remove the dot | ||
return f"urn:li:dataset:(urn:li:dataPlatform:abs,{name}_{extension},{env})" | ||
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return f"urn:li:dataset:(urn:li:dataPlatform:abs,{abs_name},{env})" | ||
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def get_container_name(abs_uri: str) -> str: | ||
if not is_abs_uri(abs_uri): | ||
raise ValueError( | ||
f"Not an Azure Blob Storage URI. Must match the following regular expression: {str(ABS_PREFIXES_REGEX)}" | ||
) | ||
return strip_abs_prefix(abs_uri).split("/")[0] | ||
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def get_key_prefix(abs_uri: str) -> str: | ||
if not is_abs_uri(abs_uri): | ||
raise ValueError( | ||
f"Not an Azure Blob Storage URI. Must match the following regular expression: {str(ABS_PREFIXES_REGEX)}" | ||
) | ||
return strip_abs_prefix(abs_uri).split("/", maxsplit=1)[1] | ||
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def get_container_relative_path(abs_uri: str) -> str: | ||
return "/".join(strip_abs_prefix(abs_uri).split("/")[1:]) |
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