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
|
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
import '../../jest-extensions';
import { from, fromDOMStream, toArray } from 'ix/asynciterable';
import { fromNodeStream } from 'ix/asynciterable/fromnodestream';
import 'ix/Ix.node';
import { util } from 'apache-arrow';
import { Builder } from 'apache-arrow';
import { DataType, Vector, Chunked } from 'apache-arrow';
import randstr from 'randomatic';
const rand = Math.random.bind(Math);
const randnulls = <T, TNull = null>(values: T[], n: TNull = <any> null) => values.map((x) => Math.random() > 0.25 ? x : n) as (T | TNull)[];
export const randomBytes = (length: number) => fillRandom(Uint8Array, length);
export const randomString = ((opts) => (length: number) =>
randstr('?', length, opts)
)({ chars: `abcdefghijklmnopqrstuvwxyz0123456789_` });
export const stringsNoNulls = (length = 20) => Array.from({ length }, (_) => randomString(1 + (Math.random() * 19 | 0)));
export const timestamp32sNoNulls = (length = 20, now = Date.now() / 86400000 | 0) =>
Array.from({ length }, (_) => (now + (rand() * 10000 * (rand() > 0.5 ? -1 : 1)) | 0) * 86400000);
export const timestamp64sNoNulls = (length = 20, now = Date.now()) => Array.from({ length }, (_) => {
const ms = now + (rand() * 31557600000 * (rand() > 0.5 ? -1 : 1) | 0);
return new Int32Array([(ms % 4294967296) | 0, (ms / 4294967296) | 0]);
});
export const timestamp32sWithNulls = (length = 20) => randnulls(timestamp32sNoNulls(length), null);
export const timestamp64sWithNulls = (length = 20) => randnulls(timestamp64sNoNulls(length), null);
export const timestamp32sWithMaxInts = (length = 20) => randnulls(timestamp32sNoNulls(length), 0x7fffffff);
export const timestamp64sWithMaxInts = (length = 20) => randnulls(timestamp64sNoNulls(length), new Int32Array([0x7fffffff, 0x7fffffff]));
export const boolsNoNulls = (length = 20) => Array.from({ length }, () => rand() > 0.5);
export const date32sNoNulls = (length = 20) => timestamp32sNoNulls(length).map((x) => new Date(x));
export const date64sNoNulls = (length = 20) => timestamp64sNoNulls(length).map((x) => new Date(4294967296 * x[1] + (x[0] >>> 0)));
export const int8sNoNulls = (length = 20) => Array.from(new Int8Array(randomBytes(length * Int8Array.BYTES_PER_ELEMENT).buffer));
export const int16sNoNulls = (length = 20) => Array.from(new Int16Array(randomBytes(length * Int16Array.BYTES_PER_ELEMENT).buffer));
export const int32sNoNulls = (length = 20) => Array.from(new Int32Array(randomBytes(length * Int32Array.BYTES_PER_ELEMENT).buffer));
export const int64sNoNulls = (length = 20) => Array.from({ length }, (_, i) => {
const bn = util.BN.new(new Int32Array(randomBytes(2 * 4).buffer));
// Evenly distribute the three types of arguments we support in the Int64
// builder
switch (i % 3) {
// Int32Array (util.BN is-a Int32Array)
case 0: return bn;
// BigInt
case 1: return bn[Symbol.toPrimitive]();
// number
case 2:
default: return bn[0];
}
});
export const uint8sNoNulls = (length = 20) => Array.from(new Uint8Array(randomBytes(length * Uint8Array.BYTES_PER_ELEMENT).buffer));
export const uint16sNoNulls = (length = 20) => Array.from(new Uint16Array(randomBytes(length * Uint16Array.BYTES_PER_ELEMENT).buffer));
export const uint32sNoNulls = (length = 20) => Array.from(new Uint32Array(randomBytes(length * Uint32Array.BYTES_PER_ELEMENT).buffer));
export const uint64sNoNulls = (length = 20) => Array.from({ length }, (_, i) => {
const bn = util.BN.new(new Uint32Array(randomBytes(2 * 4).buffer));
// Evenly distribute the three types of arguments we support in the Uint64
// builder
switch (i % 3) {
// UInt32Array (util.BN is-a Uint32Array)
case 0: return bn;
// BigInt
case 1: return bn[Symbol.toPrimitive]();
// number
case 2:
default: return bn[0];
}
});
export const float16sNoNulls = (length = 20) => Array.from(new Uint16Array(randomBytes(length * Uint16Array.BYTES_PER_ELEMENT).buffer)).map(util.uint16ToFloat64);
export const float32sNoNulls = (length = 20) => Array.from(new Float32Array(randomBytes(length * Float32Array.BYTES_PER_ELEMENT).buffer));
export const float64sNoNulls = (length = 20) => Array.from(new Float64Array(randomBytes(length * Float64Array.BYTES_PER_ELEMENT).buffer));
export const stringsWithNAs = (length = 20) => randnulls(stringsNoNulls(length), 'n/a');
export const stringsWithNulls = (length = 20) => randnulls(stringsNoNulls(length), null);
export const stringsWithEmpties = (length = 20) => randnulls(stringsNoNulls(length), '\0');
export const boolsWithNulls = (length = 20) => randnulls(boolsNoNulls(length), null);
export const date32sWithNulls = (length = 20) => randnulls(date32sNoNulls(length), null);
export const date64sWithNulls = (length = 20) => randnulls(date64sNoNulls(length), null);
export const int8sWithNulls = (length = 20) => randnulls(int8sNoNulls(length), null);
export const int16sWithNulls = (length = 20) => randnulls(int16sNoNulls(length), null);
export const int32sWithNulls = (length = 20) => randnulls(int32sNoNulls(length), null);
export const int64sWithNulls = (length = 20) => randnulls(int64sNoNulls(length), null);
export const uint8sWithNulls = (length = 20) => randnulls(uint8sNoNulls(length), null);
export const uint16sWithNulls = (length = 20) => randnulls(uint16sNoNulls(length), null);
export const uint32sWithNulls = (length = 20) => randnulls(uint32sNoNulls(length), null);
export const uint64sWithNulls = (length = 20) => randnulls(uint64sNoNulls(length), null);
export const float16sWithNulls = (length = 20) => randnulls(float16sNoNulls(length), null);
export const float32sWithNulls = (length = 20) => randnulls(float32sNoNulls(length), null);
export const float64sWithNulls = (length = 20) => randnulls(float64sNoNulls(length), null);
export const int8sWithMaxInts = (length = 20) => randnulls(int8sNoNulls(length), 0x7fffffff);
export const int16sWithMaxInts = (length = 20) => randnulls(int16sNoNulls(length), 0x7fffffff);
export const int32sWithMaxInts = (length = 20) => randnulls(int32sNoNulls(length), 0x7fffffff);
export const int64sWithMaxInts = (length = 20) => randnulls(int64sNoNulls(length), new Int32Array([0x7fffffff, 0x7fffffff]));
export const uint8sWithMaxInts = (length = 20) => randnulls(uint8sNoNulls(length), 0x7fffffff);
export const uint16sWithMaxInts = (length = 20) => randnulls(uint16sNoNulls(length), 0x7fffffff);
export const uint32sWithMaxInts = (length = 20) => randnulls(uint32sNoNulls(length), 0x7fffffff);
export const uint64sWithMaxInts = (length = 20) => randnulls(uint64sNoNulls(length), new Uint32Array([0x7fffffff, 0x7fffffff]));
export const float16sWithNaNs = (length = 20) => randnulls(float16sNoNulls(length), NaN);
export const float32sWithNaNs = (length = 20) => randnulls(float32sNoNulls(length), NaN);
export const float64sWithNaNs = (length = 20) => randnulls(float64sNoNulls(length), NaN);
export const duplicateItems = (n: number, xs: (any | null)[]) => {
const out = new Array<string | null>(n);
for (let i = -1, k = xs.length; ++i < n;) {
out[i] = xs[Math.random() * k | 0];
}
return out;
};
export function encodeAll<T extends DataType>(typeFactory: () => T) {
return async function encodeAll<TNull = any>(values: (T['TValue'] | TNull)[], nullValues?: TNull[]) {
const type = typeFactory();
const builder = Builder.new({ type, nullValues });
values.forEach(builder.append.bind(builder));
return builder.finish().toVector();
};
}
export function encodeEach<T extends DataType>(typeFactory: () => T, chunkLen?: number) {
return async function encodeEach<TNull = any>(vals: (T['TValue'] | TNull)[], nullValues?: TNull[]) {
const type = typeFactory();
const opts = { type, nullValues, highWaterMark: chunkLen };
const chunks = [...Builder.throughIterable(opts)(vals)];
return Chunked.concat(...chunks) as Chunked<T>;
};
}
export function encodeEachDOM<T extends DataType>(typeFactory: () => T, chunkLen?: number) {
return async function encodeEachDOM<TNull = any>(vals: (T['TValue'] | TNull)[], nullValues?: TNull[]) {
const type = typeFactory();
const strategy = { highWaterMark: chunkLen };
const source = from(vals).toDOMStream();
const builder = Builder.throughDOM({ type, nullValues, readableStrategy: strategy, writableStrategy: strategy });
const chunks = await fromDOMStream(source.pipeThrough(builder)).pipe(toArray);
return Chunked.concat(...chunks) as Chunked<T>;
};
}
export function encodeEachNode<T extends DataType>(typeFactory: () => T, chunkLen?: number) {
return async function encodeEachNode<TNull = any>(vals: (T['TValue'] | TNull)[], nullValues?: TNull[]) {
const type = typeFactory();
const vals_ = vals.map((x) => x === null ? undefined : x);
const source = from(vals_).toNodeStream({ objectMode: true });
const nulls_ = nullValues ? nullValues.map((x) => x === null ? undefined : x) : nullValues;
const builder = Builder.throughNode({ type, nullValues: nulls_, highWaterMark: chunkLen });
const chunks: any[] = await fromNodeStream(source.pipe(builder), chunkLen).pipe(toArray);
return Chunked.concat(...chunks) as Chunked<T>;
};
}
const isInt64Null = (nulls: Map<any, any>, x: any) => {
if (ArrayBuffer.isView(x)) {
const bn = util.BN.new<Int32Array>(x as Int32Array);
return nulls.has((<any> bn)[Symbol.toPrimitive]('default'));
}
return false;
};
export function validateVector<T extends DataType>(vals: (T['TValue'] | null)[], vec: Vector, nullVals: any[]) {
let i = 0, x: T['TValue'] | null, y: T['TValue'] | null;
const nulls = nullVals.reduce((m, x) => m.set(x, x), new Map());
try {
for (x of vec) {
if (nulls.has(y = vals[i])) {
expect(x).toBeNull();
} else if (isInt64Null(nulls, y)) {
expect(x).toBeNull();
} else {
expect(x).toArrowCompare(y);
}
i++;
}
} catch (e) {
// Uncomment these two lines to catch and debug the value retrieval that failed
// debugger;
// vec.get(i);
throw new Error([
`${(vec as any).VectorName}[${i}]: ${e?.stack || e}`,
`nulls: [${nullVals.join(', ')}]`,
`values: [${vals.join(', ')}]`,
].join('\n'));
}
}
function fillRandom<T extends TypedArrayConstructor>(ArrayType: T, length: number) {
const BPE = ArrayType.BYTES_PER_ELEMENT;
const array = new ArrayType(length);
const max = (2 ** (8 * BPE)) - 1;
for (let i = -1; ++i < length; array[i] = rand() * max * (rand() > 0.5 ? -1 : 1)) { }
return array as InstanceType<T>;
}
type TypedArrayConstructor =
(typeof Int8Array) |
(typeof Int16Array) |
(typeof Int32Array) |
(typeof Uint8Array) |
(typeof Uint16Array) |
(typeof Uint32Array) |
(typeof Float32Array) |
(typeof Float64Array);
|
