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
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
|
/*
Copyright (C) 2016 Brazil
Copyright (C) 2022-2024 Sutou Kouhei <kou@clear-code.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef GRN_EMBEDDED
# define GRN_PLUGIN_FUNCTION_TAG functions_number
#endif
#include <groonga/plugin.h>
#include <groonga/bulk.hpp>
#include <cmath>
namespace {
template <typename TYPE>
std::enable_if_t<std::is_integral_v<TYPE> && std::is_signed_v<TYPE>, TYPE>
classify_raw(grn_ctx *ctx, TYPE number, TYPE interval)
{
return number < 0 ? (((number + 1) / interval) - 1) : ((number / interval));
}
template <typename TYPE>
std::enable_if_t<std::is_integral_v<TYPE> && !std::is_signed_v<TYPE>, TYPE>
classify_raw(grn_ctx *ctx, TYPE number, TYPE interval)
{
return number / interval;
}
template <typename TYPE>
std::enable_if_t<std::is_floating_point_v<TYPE>, TYPE>
classify_raw(grn_ctx *ctx, TYPE number, TYPE interval)
{
return std::floor(number / interval);
}
template <typename TYPE>
void
classify(grn_ctx *ctx,
grn_obj *number,
grn_obj *interval,
grn_obj *classed_number)
{
auto number_raw = grn::bulk::get<TYPE>(ctx, number, 0);
auto interval_raw = grn::bulk::get<TYPE>(ctx, interval, 0);
auto class_raw = classify_raw<TYPE>(ctx, number_raw, interval_raw);
auto classed_number_raw = class_raw * interval_raw;
grn::bulk::set<TYPE>(ctx, classed_number, classed_number_raw);
}
grn_obj *
func_number_classify(grn_ctx *ctx,
int n_args,
grn_obj **args,
grn_user_data *user_data)
{
#define FUNCTION_NAME "number_classify"
grn_obj *number;
grn_obj *interval;
grn_obj casted_interval;
grn_obj *classed_number;
if (n_args != 2) {
GRN_PLUGIN_ERROR(ctx,
GRN_INVALID_ARGUMENT,
"%s(): wrong number of arguments (%d for 2)",
FUNCTION_NAME,
n_args);
return NULL;
}
number = args[0];
if (!grn_obj_is_number_family_bulk(ctx, number)) {
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, number);
GRN_PLUGIN_ERROR(ctx,
GRN_INVALID_ARGUMENT,
"%s(): the first argument must be a number: %.*s",
FUNCTION_NAME,
static_cast<int>(GRN_TEXT_LEN(&inspected)),
GRN_TEXT_VALUE(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
return NULL;
}
interval = args[1];
if (!grn_obj_is_number_family_bulk(ctx, interval)) {
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, interval);
GRN_PLUGIN_ERROR(ctx,
GRN_INVALID_ARGUMENT,
"%s(): the second argument must be a number: %.*s",
FUNCTION_NAME,
static_cast<int>(GRN_TEXT_LEN(&inspected)),
GRN_TEXT_VALUE(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
return NULL;
}
classed_number =
grn_plugin_proc_alloc(ctx, user_data, number->header.domain, 0);
if (!classed_number) {
return NULL;
}
GRN_VALUE_FIX_SIZE_INIT(&casted_interval, 0, number->header.domain);
grn_obj_cast(ctx, interval, &casted_interval, false);
switch (number->header.domain) {
case GRN_DB_INT8:
classify<int8_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_UINT8:
classify<uint8_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_INT16:
classify<int16_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_UINT16:
classify<uint16_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_INT32:
classify<int32_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_UINT32:
classify<uint32_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_INT64:
classify<int64_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_UINT64:
classify<uint64_t>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_FLOAT32:
classify<float>(ctx, number, &casted_interval, classed_number);
break;
case GRN_DB_FLOAT:
classify<double>(ctx, number, &casted_interval, classed_number);
break;
default:
{
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, number);
GRN_PLUGIN_ERROR(
ctx,
GRN_FUNCTION_NOT_IMPLEMENTED,
"%s(): unsupported type: %s",
FUNCTION_NAME,
grn_type_id_to_string_builtin(ctx, number->header.domain));
GRN_OBJ_FIN(ctx, &inspected);
}
break;
}
GRN_OBJ_FIN(ctx, &casted_interval);
return classed_number;
#undef FUNCTION_NAME
}
template <typename TYPE>
std::enable_if_t<std::is_integral_v<TYPE>, TYPE>
round_raw(TYPE value, int32_t n_digits)
{
if (n_digits >= 0) {
return value;
}
auto scale = std::pow(10, -n_digits);
return std::round(value / scale) * scale;
}
template <typename TYPE>
std::enable_if_t<std::is_floating_point_v<TYPE>, TYPE>
round_raw(TYPE value, int32_t n_digits)
{
if (n_digits == 0) {
return std::round(value);
}
if (n_digits > 0) {
auto scale = std::pow(10, n_digits);
return std::round(value * scale) / scale;
} else {
auto scale = std::pow(10, -n_digits);
return std::round(value / scale) * scale;
}
}
template <typename TYPE>
void
round(grn_ctx *ctx, grn_obj *value, int32_t n_digits_raw, grn_obj *rounded)
{
TYPE value_raw = grn::bulk::get<TYPE>(ctx, value, 0);
TYPE rounded_raw = round_raw<TYPE>(value_raw, n_digits_raw);
grn::bulk::set(ctx, rounded, rounded_raw);
}
grn_obj *
func_number_round(grn_ctx *ctx,
int n_args,
grn_obj **args,
grn_user_data *user_data)
{
#define FUNCTION_NAME "round"
if (n_args == 0 || n_args > 2) {
GRN_PLUGIN_ERROR(ctx,
GRN_INVALID_ARGUMENT,
"%s(): wrong number of arguments (%d for 1..2)",
FUNCTION_NAME,
n_args);
return grn_plugin_proc_alloc(ctx, user_data, GRN_DB_VOID, 0);
}
grn_obj *target = args[0];
if (!grn_obj_is_number_family_bulk(ctx, target)) {
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, target);
GRN_PLUGIN_ERROR(ctx,
GRN_INVALID_ARGUMENT,
"%s(): target value must be a number family value: %.*s",
FUNCTION_NAME,
(int)GRN_TEXT_LEN(&inspected),
GRN_TEXT_VALUE(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
return grn_plugin_proc_alloc(ctx, user_data, GRN_DB_VOID, 0);
}
int32_t n_digits = 0;
if (n_args >= 2) {
grn_obj *n_digits_object = args[1];
n_digits = grn_plugin_proc_get_value_int32(ctx,
n_digits_object,
n_digits,
FUNCTION_NAME "(): n_digits");
if (ctx->rc != GRN_SUCCESS) {
return grn_plugin_proc_alloc(ctx, user_data, GRN_DB_VOID, 0);
}
}
auto rounded =
grn_plugin_proc_alloc(ctx, user_data, target->header.domain, 0);
switch (target->header.domain) {
case GRN_DB_UINT8:
round<uint8_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_INT8:
round<int8_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_UINT16:
round<uint16_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_INT16:
round<int16_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_UINT32:
round<uint32_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_INT32:
round<int32_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_UINT64:
round<uint64_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_INT64:
round<int64_t>(ctx, target, n_digits, rounded);
break;
case GRN_DB_FLOAT32:
round<float>(ctx, target, n_digits, rounded);
break;
case GRN_DB_FLOAT:
round<double>(ctx, target, n_digits, rounded);
break;
default:
{
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, target);
GRN_PLUGIN_ERROR(
ctx,
GRN_FUNCTION_NOT_IMPLEMENTED,
"%s(): unsupported type: %s",
FUNCTION_NAME,
grn_type_id_to_string_builtin(ctx, target->header.domain));
GRN_OBJ_FIN(ctx, &inspected);
}
break;
}
return rounded;
#undef FUNCTION_NAME
}
} // namespace
extern "C" grn_rc
GRN_PLUGIN_INIT(grn_ctx *ctx)
{
return ctx->rc;
}
extern "C" grn_rc
GRN_PLUGIN_REGISTER(grn_ctx *ctx)
{
grn_rc rc = GRN_SUCCESS;
grn_proc_create(ctx,
"number_classify",
-1,
GRN_PROC_FUNCTION,
func_number_classify,
NULL,
NULL,
0,
NULL);
grn_proc_create(ctx,
"number_round",
-1,
GRN_PROC_FUNCTION,
func_number_round,
NULL,
NULL,
0,
NULL);
return rc;
}
extern "C" grn_rc
GRN_PLUGIN_FIN(grn_ctx *ctx)
{
return GRN_SUCCESS;
}
|
