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
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
|
/* -*- c-basic-offset: 2 -*- */
/*
Copyright(C) 2016 Brazil
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License version 2.1 as published by the Free Software Foundation.
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_time
#endif
#include <groonga/plugin.h>
#include <math.h>
typedef enum {
GRN_TIME_CLASSIFY_UNIT_SECOND,
GRN_TIME_CLASSIFY_UNIT_MINUTE,
GRN_TIME_CLASSIFY_UNIT_HOUR,
GRN_TIME_CLASSIFY_UNIT_DAY,
GRN_TIME_CLASSIFY_UNIT_WEEK,
GRN_TIME_CLASSIFY_UNIT_MONTH,
GRN_TIME_CLASSIFY_UNIT_YEAR
} grn_time_classify_unit;
static grn_obj *
func_time_classify_raw(grn_ctx *ctx,
int n_args,
grn_obj **args,
grn_user_data *user_data,
const char *function_name,
grn_time_classify_unit unit)
{
grn_obj *time;
uint32_t interval_raw = 1;
grn_obj *classed_time;
grn_bool accept_interval = GRN_TRUE;
switch (unit) {
case GRN_TIME_CLASSIFY_UNIT_SECOND :
case GRN_TIME_CLASSIFY_UNIT_MINUTE :
case GRN_TIME_CLASSIFY_UNIT_HOUR :
accept_interval = GRN_TRUE;
break;
case GRN_TIME_CLASSIFY_UNIT_DAY :
case GRN_TIME_CLASSIFY_UNIT_WEEK :
accept_interval = GRN_FALSE;
break;
case GRN_TIME_CLASSIFY_UNIT_MONTH :
case GRN_TIME_CLASSIFY_UNIT_YEAR :
accept_interval = GRN_TRUE;
break;
}
if (accept_interval) {
if (!(n_args == 1 || n_args == 2)) {
GRN_PLUGIN_ERROR(ctx, GRN_INVALID_ARGUMENT,
"%s(): "
"wrong number of arguments (%d for 1..2)",
function_name,
n_args);
return NULL;
}
} else {
if (n_args != 1) {
GRN_PLUGIN_ERROR(ctx, GRN_INVALID_ARGUMENT,
"%s(): "
"wrong number of arguments (%d for 1)",
function_name,
n_args);
return NULL;
}
}
time = args[0];
if (!(time->header.type == GRN_BULK &&
time->header.domain == GRN_DB_TIME)) {
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, time);
GRN_PLUGIN_ERROR(ctx, GRN_INVALID_ARGUMENT,
"%s(): "
"the first argument must be a time: "
"<%.*s>",
function_name,
(int)GRN_TEXT_LEN(&inspected),
GRN_TEXT_VALUE(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
return NULL;
}
if (n_args == 2) {
grn_obj *interval;
grn_obj casted_interval;
interval = args[1];
if (!(interval->header.type == GRN_BULK &&
grn_type_id_is_number_family(ctx, interval->header.domain))) {
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,
(int)GRN_TEXT_LEN(&inspected),
GRN_TEXT_VALUE(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
return NULL;
}
GRN_VALUE_FIX_SIZE_INIT(&casted_interval, 0, GRN_DB_UINT32);
grn_obj_cast(ctx, interval, &casted_interval, GRN_FALSE);
interval_raw = GRN_UINT32_VALUE(&casted_interval);
GRN_OBJ_FIN(ctx, &casted_interval);
if (interval_raw == 0) {
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 not be zero: "
"<%.*s>",
function_name,
(int)GRN_TEXT_LEN(&inspected),
GRN_TEXT_VALUE(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
return NULL;
}
}
{
int64_t time_raw;
struct tm tm;
int64_t classed_time_raw;
time_raw = GRN_TIME_VALUE(time);
if (!grn_time_to_tm(ctx, time_raw, &tm)) {
return NULL;
}
switch (unit) {
case GRN_TIME_CLASSIFY_UNIT_SECOND :
tm.tm_sec = (tm.tm_sec / interval_raw) * interval_raw;
break;
case GRN_TIME_CLASSIFY_UNIT_MINUTE :
tm.tm_min = (tm.tm_min / interval_raw) * interval_raw;
tm.tm_sec = 0;
break;
case GRN_TIME_CLASSIFY_UNIT_HOUR :
tm.tm_hour = (tm.tm_hour / interval_raw) * interval_raw;
tm.tm_min = 0;
tm.tm_sec = 0;
break;
case GRN_TIME_CLASSIFY_UNIT_DAY :
tm.tm_hour = 0;
tm.tm_min = 0;
tm.tm_sec = 0;
break;
case GRN_TIME_CLASSIFY_UNIT_WEEK :
if ((tm.tm_mday - tm.tm_wday) >= 0) {
tm.tm_mday -= tm.tm_wday;
} else {
int n_underflowed_mday = -(tm.tm_mday - tm.tm_wday);
int mday;
int max_mday = 31;
if (tm.tm_mon == 0) {
tm.tm_year--;
tm.tm_mon = 11;
} else {
tm.tm_mon--;
}
for (mday = max_mday; mday > n_underflowed_mday; mday--) {
int64_t unused;
tm.tm_mday = mday;
if (grn_time_from_tm(ctx, &unused, &tm)) {
break;
}
}
tm.tm_mday -= n_underflowed_mday;
}
tm.tm_hour = 0;
tm.tm_min = 0;
tm.tm_sec = 0;
break;
case GRN_TIME_CLASSIFY_UNIT_MONTH :
tm.tm_mon = (tm.tm_mon / interval_raw) * interval_raw;
tm.tm_mday = 1;
tm.tm_hour = 0;
tm.tm_min = 0;
tm.tm_sec = 0;
break;
case GRN_TIME_CLASSIFY_UNIT_YEAR :
tm.tm_year = (((1900 + tm.tm_year) / interval_raw) * interval_raw) - 1900;
tm.tm_mon = 0;
tm.tm_mday = 1;
tm.tm_hour = 0;
tm.tm_min = 0;
tm.tm_sec = 0;
break;
}
if (!grn_time_from_tm(ctx, &classed_time_raw, &tm)) {
return NULL;
}
classed_time = grn_plugin_proc_alloc(ctx,
user_data,
time->header.domain,
0);
if (!classed_time) {
return NULL;
}
GRN_TIME_SET(ctx, classed_time, classed_time_raw);
return classed_time;
}
}
static grn_obj *
func_time_classify_second(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_second",
GRN_TIME_CLASSIFY_UNIT_SECOND);
}
static grn_obj *
func_time_classify_minute(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_minute",
GRN_TIME_CLASSIFY_UNIT_MINUTE);
}
static grn_obj *
func_time_classify_hour(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_hour",
GRN_TIME_CLASSIFY_UNIT_HOUR);
}
static grn_obj *
func_time_classify_day(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_day",
GRN_TIME_CLASSIFY_UNIT_DAY);
}
static grn_obj *
func_time_classify_week(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_week",
GRN_TIME_CLASSIFY_UNIT_WEEK);
}
static grn_obj *
func_time_classify_month(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_month",
GRN_TIME_CLASSIFY_UNIT_MONTH);
}
static grn_obj *
func_time_classify_year(grn_ctx *ctx, int n_args, grn_obj **args,
grn_user_data *user_data)
{
return func_time_classify_raw(ctx,
n_args,
args,
user_data,
"time_classify_year",
GRN_TIME_CLASSIFY_UNIT_YEAR);
}
grn_rc
GRN_PLUGIN_INIT(grn_ctx *ctx)
{
return ctx->rc;
}
grn_rc
GRN_PLUGIN_REGISTER(grn_ctx *ctx)
{
grn_rc rc = GRN_SUCCESS;
grn_proc_create(ctx,
"time_classify_second", -1,
GRN_PROC_FUNCTION,
func_time_classify_second,
NULL, NULL, 0, NULL);
grn_proc_create(ctx,
"time_classify_minute", -1,
GRN_PROC_FUNCTION,
func_time_classify_minute,
NULL, NULL, 0, NULL);
grn_proc_create(ctx,
"time_classify_hour", -1,
GRN_PROC_FUNCTION,
func_time_classify_hour,
NULL, NULL, 0, NULL);
grn_proc_create(ctx,
"time_classify_day", -1,
GRN_PROC_FUNCTION,
func_time_classify_day,
NULL, NULL, 0, NULL);
grn_proc_create(ctx,
"time_classify_week", -1,
GRN_PROC_FUNCTION,
func_time_classify_week,
NULL, NULL, 0, NULL);
grn_proc_create(ctx,
"time_classify_month", -1,
GRN_PROC_FUNCTION,
func_time_classify_month,
NULL, NULL, 0, NULL);
grn_proc_create(ctx,
"time_classify_year", -1,
GRN_PROC_FUNCTION,
func_time_classify_year,
NULL, NULL, 0, NULL);
return rc;
}
grn_rc
GRN_PLUGIN_FIN(grn_ctx *ctx)
{
return GRN_SUCCESS;
}
|
