File size: 3,613 Bytes
2c3c408 | 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 | # variable_length.py
#
# LICENSE
#
# The MIT License
#
# Copyright (c) 2020 TileDB, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# DESCRIPTION
#
# Please see the TileDB documentation for more information:
# https://docs.tiledb.com/main/how-to/arrays/writing-arrays/var-length-attributes
#
# This program shows how to set/get the TileDB configuration parameters.
#
import numpy as np
#%%
import tiledb
from tiledb.tests.common import assert_subarrays_equal
array_name = "variable_length_array"
#%%
def create_array():
dom = tiledb.Domain(
tiledb.Dim(name="rows", domain=(1, 4), tile=4, dtype=np.int64),
tiledb.Dim(name="cols", domain=(1, 4), tile=4, dtype=np.int64),
)
attrs = [
tiledb.Attr(name="a1", var=True, dtype="U"),
tiledb.Attr(name="a2", var=True, dtype=np.int64),
]
schema = tiledb.ArraySchema(domain=dom, sparse=False, attrs=attrs)
tiledb.Array.create(array_name, schema)
return schema
def generate_data():
# generate test input data
a1_data = np.array(
[
"a",
"bb",
"ccc",
"dd",
"eee",
"f",
"g",
"hhh",
"i",
"jjj",
"kk",
"l",
"m",
"n",
"oo",
"p",
],
dtype=object,
)
a1_data = a1_data.reshape(4, 4)
a2_data = np.array(
list(
map(
lambda v: np.repeat(v[0], v[1]).astype(np.int64),
[
(1, 1),
(2, 2),
(3, 1),
(4, 1),
(5, 1),
(6, 2),
(7, 2),
(8, 3),
(9, 2),
(10, 1),
(11, 1),
(12, 2),
(13, 1),
(14, 3),
(15, 1),
(16, 1),
],
)
),
dtype=object,
)
a2_data = a2_data.reshape(4, 4)
data_dict = {"a1": a1_data, "a2": a2_data}
return data_dict
def write_array(data_dict):
# open array for writing, and write data
with tiledb.open(array_name, "w") as array:
array[:] = data_dict
def test_output_subarrays(test_dict):
with tiledb.open(array_name) as A:
rt_dict = A[:]
assert_subarrays_equal(test_dict["a2"], rt_dict["a2"])
create_array()
data = generate_data()
write_array(data)
test_output_subarrays(data)
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