1 /*
2 * (C) Copyright 2005- ECMWF.
3 *
4 * This software is licensed under the terms of the Apache Licence Version 2.0
5 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
6 *
7 * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
8 * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
9 */
10
11 #include "grib_api_internal.h"
12
13 /*
14 This is used by make_class.pl
15
16 START_CLASS_DEF
17 CLASS = accessor
18 SUPER = grib_accessor_class_gen
19 IMPLEMENTS = init;unpack_string; get_native_type
20 MEMBERS = const char* codetable
21 END_CLASS_DEF
22
23 */
24
25 /* START_CLASS_IMP */
26
27 /*
28
29 Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
30 Instead edit values between START_CLASS_DEF and END_CLASS_DEF
31 or edit "accessor.class" and rerun ./make_class.pl
32
33 */
34
35 static int get_native_type(grib_accessor*);
36 static int unpack_string(grib_accessor*, char*, size_t* len);
37 static void init(grib_accessor*, const long, grib_arguments*);
38 static void init_class(grib_accessor_class*);
39
40 typedef struct grib_accessor_codetable_units
41 {
42 grib_accessor att;
43 /* Members defined in gen */
44 /* Members defined in codetable_units */
45 const char* codetable;
46 } grib_accessor_codetable_units;
47
48 extern grib_accessor_class* grib_accessor_class_gen;
49
50 static grib_accessor_class _grib_accessor_class_codetable_units = {
51 &grib_accessor_class_gen, /* super */
52 "codetable_units", /* name */
53 sizeof(grib_accessor_codetable_units), /* size */
54 0, /* inited */
55 &init_class, /* init_class */
56 &init, /* init */
57 0, /* post_init */
58 0, /* free mem */
59 0, /* describes himself */
60 0, /* get length of section */
61 0, /* get length of string */
62 0, /* get number of values */
63 0, /* get number of bytes */
64 0, /* get offset to bytes */
65 &get_native_type, /* get native type */
66 0, /* get sub_section */
67 0, /* grib_pack procedures long */
68 0, /* grib_pack procedures long */
69 0, /* grib_pack procedures long */
70 0, /* grib_unpack procedures long */
71 0, /* grib_pack procedures double */
72 0, /* grib_unpack procedures double */
73 0, /* grib_pack procedures string */
74 &unpack_string, /* grib_unpack procedures string */
75 0, /* grib_pack array procedures string */
76 0, /* grib_unpack array procedures string */
77 0, /* grib_pack procedures bytes */
78 0, /* grib_unpack procedures bytes */
79 0, /* pack_expression */
80 0, /* notify_change */
81 0, /* update_size */
82 0, /* preferred_size */
83 0, /* resize */
84 0, /* nearest_smaller_value */
85 0, /* next accessor */
86 0, /* compare vs. another accessor */
87 0, /* unpack only ith value */
88 0, /* unpack a subarray */
89 0, /* clear */
90 0, /* clone accessor */
91 };
92
93
94 grib_accessor_class* grib_accessor_class_codetable_units = &_grib_accessor_class_codetable_units;
95
96
init_class(grib_accessor_class * c)97 static void init_class(grib_accessor_class* c)
98 {
99 c->dump = (*(c->super))->dump;
100 c->next_offset = (*(c->super))->next_offset;
101 c->string_length = (*(c->super))->string_length;
102 c->value_count = (*(c->super))->value_count;
103 c->byte_count = (*(c->super))->byte_count;
104 c->byte_offset = (*(c->super))->byte_offset;
105 c->sub_section = (*(c->super))->sub_section;
106 c->pack_missing = (*(c->super))->pack_missing;
107 c->is_missing = (*(c->super))->is_missing;
108 c->pack_long = (*(c->super))->pack_long;
109 c->unpack_long = (*(c->super))->unpack_long;
110 c->pack_double = (*(c->super))->pack_double;
111 c->unpack_double = (*(c->super))->unpack_double;
112 c->pack_string = (*(c->super))->pack_string;
113 c->pack_string_array = (*(c->super))->pack_string_array;
114 c->unpack_string_array = (*(c->super))->unpack_string_array;
115 c->pack_bytes = (*(c->super))->pack_bytes;
116 c->unpack_bytes = (*(c->super))->unpack_bytes;
117 c->pack_expression = (*(c->super))->pack_expression;
118 c->notify_change = (*(c->super))->notify_change;
119 c->update_size = (*(c->super))->update_size;
120 c->preferred_size = (*(c->super))->preferred_size;
121 c->resize = (*(c->super))->resize;
122 c->nearest_smaller_value = (*(c->super))->nearest_smaller_value;
123 c->next = (*(c->super))->next;
124 c->compare = (*(c->super))->compare;
125 c->unpack_double_element = (*(c->super))->unpack_double_element;
126 c->unpack_double_subarray = (*(c->super))->unpack_double_subarray;
127 c->clear = (*(c->super))->clear;
128 c->make_clone = (*(c->super))->make_clone;
129 }
130
131 /* END_CLASS_IMP */
132
133 typedef struct grib_accessor_codetable
134 {
135 grib_accessor att;
136 /* Members defined in gen */
137 /* Members defined in long */
138 /* Members defined in unsigned */
139 long nbytes;
140 grib_arguments* arg;
141 /* Members defined in codetable */
142 const char* tablename;
143 const char* masterDir;
144 const char* localDir;
145 grib_codetable* table;
146 } grib_accessor_codetable;
147
init(grib_accessor * a,const long len,grib_arguments * params)148 static void init(grib_accessor* a, const long len, grib_arguments* params)
149 {
150 grib_accessor_codetable_units* self = (grib_accessor_codetable_units*)a;
151 int n = 0;
152 self->codetable = grib_arguments_get_name(grib_handle_of_accessor(a), params, n++);
153 a->length = 0;
154 a->flags |= GRIB_ACCESSOR_FLAG_READ_ONLY;
155 }
156
get_native_type(grib_accessor * a)157 static int get_native_type(grib_accessor* a)
158 {
159 return GRIB_TYPE_STRING;
160 }
161
unpack_string(grib_accessor * a,char * buffer,size_t * len)162 static int unpack_string(grib_accessor* a, char* buffer, size_t* len)
163 {
164 grib_accessor_codetable_units* self = (grib_accessor_codetable_units*)a;
165 grib_codetable* table = NULL;
166
167 size_t size = 1;
168 long value;
169 int err = GRIB_SUCCESS;
170 char tmp[1024];
171 size_t l = 1024;
172 grib_accessor_codetable* ca = (grib_accessor_codetable*)grib_find_accessor(grib_handle_of_accessor(a), self->codetable);
173
174 if ((err = grib_unpack_long((grib_accessor*)ca, &value, &size)) != GRIB_SUCCESS)
175 return err;
176
177 table = ca->table;
178
179 if (table && (value >= 0) && (value < table->size) && table->entries[value].units) {
180 strcpy(tmp, table->entries[value].units);
181 }
182 else {
183 sprintf(tmp, "%d", (int)value);
184 }
185
186 l = strlen(tmp) + 1;
187
188 if (*len < l) {
189 *len = l;
190 return GRIB_BUFFER_TOO_SMALL;
191 }
192
193 strcpy(buffer, tmp);
194 *len = l;
195
196 return GRIB_SUCCESS;
197 }
198