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Add wildcard support for protocol prefix paths (gs://, s3://)
Co-authored-by: joocer <[email protected]>
1 parent e98da26 commit 66a40fe

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6 files changed

+339
-16
lines changed

6 files changed

+339
-16
lines changed

‎opteryx/connectors/__init__.py‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -285,7 +285,7 @@ def connector_factory(dataset, statistics, **config):
285285
prefix = connector_entry.pop("prefix", "")
286286
remove_prefix = connector_entry.pop("remove_prefix", False)
287287
if prefix and remove_prefix and dataset.startswith(prefix):
288-
dataset = dataset[len(prefix) + 1 :]
288+
dataset = dataset[len(prefix):]
289289

290290
return connector(dataset=dataset, statistics=statistics, **connector_entry)
291291

‎opteryx/connectors/aws_s3_connector.py‎

Lines changed: 38 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -87,18 +87,48 @@ def __init__(self, credentials=None, **kwargs):
8787

8888
self.minio = Minio(end_point, access_key, secret_key, secure=secure)
8989
self.dataset = self.dataset.replace(".", OS_SEP)
90+
91+
# Check if dataset contains wildcards
92+
self.has_wildcards = paths.has_wildcards(self.dataset)
93+
if self.has_wildcards:
94+
# For wildcards, we need to split into prefix and pattern
95+
self.wildcard_prefix, self.wildcard_pattern = paths.split_wildcard_path(self.dataset)
96+
else:
97+
self.wildcard_prefix = None
98+
self.wildcard_pattern = None
9099

91100
@single_item_cache
92101
def get_list_of_blob_names(self, *, prefix: str) -> List[str]:
93-
bucket, object_path, _, _ = paths.get_parts(prefix)
102+
# If we have wildcards, use the wildcard prefix for listing
103+
if self.has_wildcards:
104+
list_prefix = self.wildcard_prefix
105+
filter_pattern = self.wildcard_pattern
106+
else:
107+
list_prefix = prefix
108+
filter_pattern = None
109+
110+
bucket, object_path, _, _ = paths.get_parts(list_prefix)
94111
blobs = self.minio.list_objects(bucket_name=bucket, prefix=object_path, recursive=True)
95-
blobs = (
96-
bucket + "/" + blob.object_name for blob in blobs if not blob.object_name.endswith("/")
97-
)
98-
99-
return sorted(
100-
blob for blob in blobs if ("." + blob.split(".")[-1].lower()) in VALID_EXTENSIONS
101-
)
112+
113+
blob_list = []
114+
for blob in blobs:
115+
if blob.object_name.endswith("/"):
116+
continue
117+
118+
full_path = bucket + "/" + blob.object_name
119+
120+
# Check if blob has valid extension
121+
if ("." + full_path.split(".")[-1].lower()) not in VALID_EXTENSIONS:
122+
continue
123+
124+
# If we have a wildcard pattern, filter by it
125+
if filter_pattern:
126+
if paths.match_wildcard(filter_pattern, full_path):
127+
blob_list.append(full_path)
128+
else:
129+
blob_list.append(full_path)
130+
131+
return sorted(blob_list)
102132

103133
def read_dataset(
104134
self, columns: list = None, just_schema: bool = False, **kwargs

‎opteryx/connectors/gcp_cloudstorage_connector.py‎

Lines changed: 34 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -93,7 +93,18 @@ def __init__(self, credentials=None, **kwargs):
9393

9494
self.dataset = self.dataset.replace(".", OS_SEP)
9595
self.credentials = credentials
96-
self.bucket, _, _, _ = paths.get_parts(self.dataset)
96+
97+
# Check if dataset contains wildcards
98+
self.has_wildcards = paths.has_wildcards(self.dataset)
99+
if self.has_wildcards:
100+
# For wildcards, we need to split into prefix and pattern
101+
# The prefix is used for listing, pattern for filtering
102+
self.wildcard_prefix, self.wildcard_pattern = paths.split_wildcard_path(self.dataset)
103+
self.bucket, _, _, _ = paths.get_parts(self.wildcard_prefix or self.dataset)
104+
else:
105+
self.wildcard_prefix = None
106+
self.wildcard_pattern = None
107+
self.bucket, _, _, _ = paths.get_parts(self.dataset)
97108

98109
# we're going to cache the first blob as the schema and dataset reader
99110
# sometimes both start here
@@ -181,7 +192,15 @@ def get_list_of_blob_names(self, *, prefix: str) -> List[str]:
181192
if prefix in self.blob_list:
182193
return self.blob_list[prefix]
183194

184-
bucket, object_path, _, _ = paths.get_parts(prefix)
195+
# If we have wildcards, use the wildcard prefix for listing
196+
if self.has_wildcards:
197+
list_prefix = self.wildcard_prefix
198+
filter_pattern = self.wildcard_pattern
199+
else:
200+
list_prefix = prefix
201+
filter_pattern = None
202+
203+
bucket, object_path, _, _ = paths.get_parts(list_prefix)
185204
if "kh" not in bucket:
186205
bucket = bucket.replace("va_data", "va-data")
187206
bucket = bucket.replace("data_", "data-")
@@ -204,11 +223,19 @@ def get_list_of_blob_names(self, *, prefix: str) -> List[str]:
204223
raise DatasetReadError(f"Error fetching blob list: {response.text}")
205224

206225
blob_data = response.json()
207-
blob_names.extend(
208-
f"{bucket}/{name}"
209-
for name in (blob["name"] for blob in blob_data.get("items", []))
210-
if name.endswith(TUPLE_OF_VALID_EXTENSIONS)
211-
)
226+
for blob in blob_data.get("items", []):
227+
name = blob["name"]
228+
if not name.endswith(TUPLE_OF_VALID_EXTENSIONS):
229+
continue
230+
231+
full_path = f"{bucket}/{name}"
232+
233+
# If we have a wildcard pattern, filter by it
234+
if filter_pattern:
235+
if paths.match_wildcard(filter_pattern, full_path):
236+
blob_names.append(full_path)
237+
else:
238+
blob_names.append(full_path)
212239

213240
page_token = blob_data.get("nextPageToken")
214241
if not page_token:

‎opteryx/utils/paths.py‎

Lines changed: 77 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -7,6 +7,7 @@
77
Functions to help with handling file paths
88
"""
99

10+
import fnmatch
1011
import os
1112

1213
OS_SEP = os.sep
@@ -39,3 +40,79 @@ def get_parts(path_string: str):
3940
parts_path = OS_SEP.join(parts)
4041

4142
return bucket, parts_path, file_name, suffix
43+
44+
45+
def has_wildcards(path: str) -> bool:
46+
"""
47+
Check if a path contains wildcard characters.
48+
49+
Args:
50+
path: Path string to check
51+
52+
Returns:
53+
True if path contains wildcards (*, ?, [])
54+
"""
55+
return any(char in path for char in ['*', '?', '['])
56+
57+
58+
def split_wildcard_path(path: str):
59+
"""
60+
Split a path with wildcards into a non-wildcard prefix and wildcard pattern.
61+
62+
For cloud storage, we need to list blobs with a prefix, then filter by pattern.
63+
This function finds the longest non-wildcard prefix for listing.
64+
65+
Args:
66+
path: Path with potential wildcards (e.g., "bucket/path/subdir/*.parquet")
67+
68+
Returns:
69+
tuple: (prefix, pattern) where:
70+
- prefix: Non-wildcard prefix for listing (e.g., "bucket/path/subdir/")
71+
- pattern: Full path with wildcards for matching (e.g., "bucket/path/subdir/*.parquet")
72+
73+
Examples:
74+
>>> split_wildcard_path("bucket/path/*.parquet")
75+
('bucket/path/', 'bucket/path/*.parquet')
76+
77+
>>> split_wildcard_path("bucket/path/file[0-9].parquet")
78+
('bucket/path/', 'bucket/path/file[0-9].parquet')
79+
80+
>>> split_wildcard_path("bucket/*/data.parquet")
81+
('bucket/', 'bucket/*/data.parquet')
82+
"""
83+
if not has_wildcards(path):
84+
return path, path
85+
86+
# Find the first wildcard character
87+
wildcard_pos = len(path)
88+
for char in ['*', '?', '[']:
89+
pos = path.find(char)
90+
if pos != -1 and pos < wildcard_pos:
91+
wildcard_pos = pos
92+
93+
# Find the last path separator before the wildcard
94+
prefix = path[:wildcard_pos]
95+
last_sep = prefix.rfind(OS_SEP)
96+
97+
if last_sep != -1:
98+
# Include the separator in the prefix
99+
prefix = path[:last_sep + 1]
100+
else:
101+
# No separator before wildcard, prefix is empty or bucket name
102+
prefix = ""
103+
104+
return prefix, path
105+
106+
107+
def match_wildcard(pattern: str, path: str) -> bool:
108+
"""
109+
Match a path against a wildcard pattern.
110+
111+
Args:
112+
pattern: Pattern with wildcards (e.g., "bucket/path/*.parquet")
113+
path: Path to match (e.g., "bucket/path/file1.parquet")
114+
115+
Returns:
116+
True if path matches pattern
117+
"""
118+
return fnmatch.fnmatch(path, pattern)

‎tests/unit/connectors/test_protocol_prefix_paths.py‎

Lines changed: 107 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,107 @@
1+
"""
2+
Test protocol prefix support for cloud storage paths (gs://, s3://, etc.)
3+
"""
4+
5+
import os
6+
import sys
7+
8+
sys.path.insert(1, os.path.join(sys.path[0], "../../.."))
9+
10+
import pytest
11+
12+
from opteryx.connectors import connector_factory
13+
14+
15+
class MockStatistics:
16+
"""Mock statistics object for testing"""
17+
def __init__(self):
18+
self.bytes_read = 0
19+
self.rows_seen = 0
20+
self.bytes_raw = 0
21+
self.estimated_row_count = 0
22+
23+
24+
def test_prefix_removal():
25+
"""Test that protocol prefixes are correctly removed from dataset paths"""
26+
stats = MockStatistics()
27+
28+
# Note: These tests verify the connector_factory logic, not actual cloud access
29+
# We're testing that the right connector is selected and prefix is removed correctly
30+
31+
# Test GCS prefix
32+
try:
33+
connector = connector_factory("gs://bucket/path", statistics=stats)
34+
# Should use GcpCloudStorageConnector
35+
assert connector.__type__ == "GCS"
36+
# Dataset should have prefix removed (gs:// -> "")
37+
assert connector.dataset == "bucket/path"
38+
except Exception as e:
39+
# May fail due to missing credentials, but we can check the type
40+
if "connector" in str(type(e).__name__).lower():
41+
pass # Expected if credentials not configured
42+
else:
43+
# Check that it would have used the right connector type
44+
pass
45+
46+
# Test S3 prefix
47+
try:
48+
connector = connector_factory("s3://bucket/path", statistics=stats)
49+
assert connector.__type__ == "S3"
50+
assert connector.dataset == "bucket/path"
51+
except Exception as e:
52+
# May fail due to missing credentials
53+
pass
54+
55+
56+
def test_wildcard_detection_in_cloud_paths():
57+
"""Test that wildcards are detected in cloud storage paths"""
58+
stats = MockStatistics()
59+
60+
# Test GCS with wildcards
61+
try:
62+
connector = connector_factory("gs://bucket/path/*.parquet", statistics=stats)
63+
assert hasattr(connector, 'has_wildcards')
64+
assert connector.has_wildcards is True
65+
assert connector.wildcard_pattern == "bucket/path/*.parquet"
66+
except Exception:
67+
# May fail due to missing credentials
68+
pass
69+
70+
# Test S3 with wildcards
71+
try:
72+
connector = connector_factory("s3://bucket/path/*.parquet", statistics=stats)
73+
assert hasattr(connector, 'has_wildcards')
74+
assert connector.has_wildcards is True
75+
assert connector.wildcard_pattern == "bucket/path/*.parquet"
76+
except Exception:
77+
# May fail due to missing credentials
78+
pass
79+
80+
81+
def test_protocol_prefix_matching():
82+
"""Test that protocol prefixes are correctly matched"""
83+
stats = MockStatistics()
84+
85+
# These should match cloud connectors
86+
cloud_paths = [
87+
("gs://bucket/path", "GCS"),
88+
("gs://bucket/path/file.parquet", "GCS"),
89+
("gs://bucket/path/*.parquet", "GCS"),
90+
("s3://bucket/path", "S3"),
91+
("s3://bucket/path/file.parquet", "S3"),
92+
("s3://bucket/path/*.parquet", "S3"),
93+
]
94+
95+
for path, expected_type in cloud_paths:
96+
try:
97+
connector = connector_factory(path, statistics=stats)
98+
assert connector.__type__ == expected_type, f"Path {path} should use {expected_type} connector"
99+
except Exception:
100+
# Expected if credentials not configured
101+
pass
102+
103+
104+
if __name__ == "__main__": # pragma: no cover
105+
from tests import run_tests
106+
107+
run_tests()

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