1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
|
"""Tests of the Python opener VSI plugin."""
import io
import os
import warnings
from pathlib import Path
from threading import Thread
import zipfile
from affine import Affine
import fsspec
import numpy as np
import pytest
import rasterio
from rasterio.enums import MaskFlags
from rasterio.errors import OpenerRegistrationError
from rasterio.warp import reproject
def test_opener_failure():
"""Use int as an opener :)"""
with pytest.raises(OpenerRegistrationError) as exc_info:
rasterio.open("tests/data/RGB.byte.tif", opener=int)
def test_opener_io_open():
"""Use io.open as opener."""
with rasterio.open("tests/data/RGB.byte.tif", opener=io.open) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
def test_opener_zipfile_open():
"""Use zipfile as opener."""
with zipfile.ZipFile("tests/data/files.zip") as zf:
with rasterio.open("RGB.byte.tif", opener=zf.open) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
@pytest.mark.parametrize(
"urlpath", ["file://tests/data/RGB.byte.tif", "zip://RGB.byte.tif::tests/data/files.zip"]
)
def test_opener_fsspec_open(urlpath):
"""Use fsspec.open as opener."""
with rasterio.open(urlpath, opener=fsspec.open) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
def test_opener_fsspec_fs_open():
"""Use fsspec filesystem open() as opener."""
fs = fsspec.filesystem("file")
with rasterio.open("tests/data/RGB.byte.tif", opener=fs.open) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
def test_opener_fsspec_fs():
"""Use fsspec filesystem as opener."""
fs = fsspec.filesystem("file")
with rasterio.open("tests/data/RGB.byte.tif", opener=fs) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
@pytest.mark.network
def test_opener_fsspec_http_fs():
"""Use fsspec http filesystem as opener."""
fs = fsspec.filesystem("http")
with rasterio.open(
"https://raw.githubusercontent.com/rasterio/rasterio/main/tests/data/float32.tif",
opener=fs,
) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 1
def test_opener_fsspec_fs_open_write(tmp_path):
"""Use fsspec filesystem open() as opener for writing."""
data = np.ma.masked_less_equal(np.array([[0, 1, 2]], dtype="uint8"), 1)
fs = fsspec.filesystem("file")
with rasterio.open(
os.fspath(tmp_path / "test.tif"),
"w",
driver="GTiff",
count=1,
width=3,
height=1,
dtype="uint8",
nodata=0,
opener=fs.open,
) as dst:
dst.write(data, indexes=1)
# Expect the dataset's nodata value in the first two pixels.
with rasterio.open(tmp_path / "test.tif") as src:
assert src.mask_flag_enums == ([MaskFlags.nodata],)
arr = src.read()
assert list(arr.flatten()) == [0, 0, 2]
def test_opener_fsspec_fs_write(tmp_path):
"""Use fsspec filesystem open() as opener for writing."""
data = np.ma.masked_less_equal(np.array([[0, 1, 2]], dtype="uint8"), 1)
fs = fsspec.filesystem("file")
with rasterio.open(
os.fspath(tmp_path / "test.tif"),
"w",
driver="GTiff",
count=1,
width=3,
height=1,
dtype="uint8",
nodata=0,
opener=fs,
) as dst:
dst.write(data, indexes=1)
# Expect the dataset's nodata value in the first two pixels.
with rasterio.open(tmp_path / "test.tif") as src:
assert src.mask_flag_enums == ([MaskFlags.nodata],)
arr = src.read()
assert list(arr.flatten()) == [0, 0, 2]
def test_fp_fsspec_openfile_write(tmp_path):
"""Use an fsspec OpenFile for writing."""
data = np.ma.masked_less_equal(np.array([[0, 1, 2]], dtype="uint8"), 1)
of = fsspec.open(os.fspath(tmp_path / "test.tif"), "wb")
with rasterio.open(
of,
"w",
driver="GTiff",
count=1,
width=3,
height=1,
dtype="uint8",
nodata=0,
) as dst:
dst.write(data, indexes=1)
# Expect the dataset's nodata value in the first two pixels.
with rasterio.open(tmp_path / "test.tif") as src:
assert src.mask_flag_enums == ([MaskFlags.nodata],)
arr = src.read()
assert list(arr.flatten()) == [0, 0, 2]
def test_opener_msk_sidecar():
"""Access .msk sidecar file via opener."""
# This test fails before issue 3027 is resolved because
# RGB2.byte.tif.msk is not found.
with rasterio.open("tests/data/RGB2.byte.tif", opener=io.open) as src:
for val in src.mask_flag_enums:
assert val == [MaskFlags.per_dataset]
def test_fsspec_msk_sidecar():
"""Access .msk sidecar file via fsspec."""
fs = fsspec.filesystem("file")
with rasterio.open("tests/data/RGB2.byte.tif", opener=fs) as src:
for val in src.mask_flag_enums:
assert val == [MaskFlags.per_dataset]
@pytest.mark.network
def test_fsspec_http_msk_sidecar():
"""Use fsspec http filesystem as opener."""
fs = fsspec.filesystem("http")
with rasterio.open(
"https://raw.githubusercontent.com/rasterio/rasterio/main/tests/data/RGB2.byte.tif",
opener=fs,
) as src:
for val in src.mask_flag_enums:
assert val == [MaskFlags.per_dataset]
def test_opener_tiledb_vfs():
"""Use tiledb virtual filesystem as opener."""
tiledb = pytest.importorskip("tiledb")
fs = tiledb.VFS()
with rasterio.open("tests/data/RGB.byte.tif", opener=fs) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
def test_delete_on_overwrite(data):
"""Opener can delete dataset when overwriting."""
fs = fsspec.filesystem("file")
outputfile = os.path.join(str(data), "RGB.byte.tif")
with rasterio.open(outputfile, opener=fs) as dst:
profile = dst.profile
# No need to write any data, as open() will error if VSI unlinking
# isn't implemented.
with rasterio.open(outputfile, "w", opener=fs, **profile) as dst:
pass
@pytest.mark.parametrize("opener", [io.open, fsspec.filesystem("file")])
def test_opener_registration(opener):
"""Opener is correctly registered."""
from rasterio._vsiopener import _OPENER_REGISTRY, _opener_registration
with _opener_registration("tests/data/RGB.byte.tif", opener) as registered_vsi_path:
assert registered_vsi_path.startswith("/vsiriopener_")
key = (Path("tests/data"), registered_vsi_path.split("/")[1].split("_")[1])
val = _OPENER_REGISTRY.get()[key]
assert val.isfile
assert val._obj == opener
def test_threads_context():
"""Threads have opener registries."""
def target():
with rasterio.open("tests/data/RGB.byte.tif", opener=io.open) as dst:
assert dst.count == 3
thread = Thread(target=target)
thread.start()
thread.join()
def test_threads_overviews(data):
"""."""
fs = fsspec.filesystem("file")
outputfile = os.path.join(str(data), "RGB.byte.tif")
with rasterio.Env(GDAL_NUM_THREADS=1):
with rasterio.open(outputfile, "r+", opener=fs) as dst:
dst.build_overviews([2])
def test_warp(tmp_path):
"""File to file."""
fs = fsspec.filesystem("file")
tiffname = str(tmp_path.joinpath("foo.tif"))
with rasterio.open("tests/data/RGB.byte.tif", opener=fs) as src:
kwargs = src.profile
kwargs.update(
transform=Affine(300.0, 0.0, -8789636.708, 0.0, -300.0, 2943560.235),
crs="EPSG:3857",
)
with rasterio.open(tiffname, "w", opener=fs, **kwargs) as dst:
for i in (1, 2, 3):
reproject(rasterio.band(src, i), rasterio.band(dst, i), num_threads=2)
def test_opener_fsspec_fs_tiff_threads():
"""Fsspec filesystem opener is compatible with multithreaded tiff decoding."""
fs = fsspec.filesystem("file")
with rasterio.open("tests/data/rgb_lzw.tif", opener=fs, num_threads=2) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
assert src.read().shape == (3, 718, 791)
def test_opener_fsspec_fs_tiff_threads_2():
"""Fsspec filesystem opener is compatible with multithreaded tiff decoding."""
fs = fsspec.filesystem("file")
with rasterio.Env(GDAL_NUM_THREADS=2):
with rasterio.open("tests/data/rgb_lzw.tif", opener=fs) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
assert src.read().shape == (3, 718, 791)
def test_opener_multi_range_read():
"""Test with Opener with multi-range-read method."""
from rasterio.abc import MultiByteRangeResourceContainer
class CustomResource(io.FileIO):
"""Custom FileIO FS with `read_multi_range` method."""
def get_byte_ranges(
self,
offsets,
sizes,
):
warnings.warn("Using MultiRange Reads", UserWarning, stacklevel=2)
return [
self._read_range(offset, size) for (offset, size) in zip(offsets, sizes)
]
def _read_range(self, offset, size):
_ = self.seek(offset)
return self.read(size)
class CustomResourceContainer:
def open(self, path, mode="r", **kwds):
return CustomResource(path, mode=mode, **kwds)
def isfile(self, path):
return True
def isdir(self, path):
return False
def ls(self, path):
return []
def mtime(self, path):
return 0
def size(self, path):
with CustomResource(path) as f:
return f.size()
MultiByteRangeResourceContainer.register(CustomResourceContainer)
with rasterio.open(
"tests/data/RGB.byte.tif", opener=CustomResourceContainer()
) as src:
profile = src.profile
assert profile["driver"] == "GTiff"
assert profile["count"] == 3
# Should emit a multi-range read
with pytest.warns(UserWarning, match="Using MultiRange Reads"):
_ = src.read()
|
