2 * Copyright (c) 1995-1999, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.17 1999-11-30 13:47:12 adam
8 * Improved installation. Moved header files to include/yaz.
10 * Revision 1.16 1999/08/27 09:40:32 adam
11 * Renamed logf function to yaz_log. Removed VC++ project files.
13 * Revision 1.15 1999/03/31 11:18:25 adam
14 * Implemented odr_strdup. Added Reference ID to backend server API.
16 * Revision 1.14 1998/03/16 12:21:15 adam
17 * Fixed problem with tag names that weren't set to the right value
18 * when wildcards were used.
20 * Revision 1.13 1998/02/11 11:53:35 adam
21 * Changed code so that it compiles as C++.
23 * Revision 1.12 1997/11/24 11:33:56 adam
24 * Using function odr_nullval() instead of global ODR_NULLVAL when
27 * Revision 1.11 1997/11/18 09:51:09 adam
28 * Removed element num_children from data1_node. Minor changes in
31 * Revision 1.10 1997/09/17 12:10:36 adam
34 * Revision 1.9 1997/05/14 06:54:03 adam
37 * Revision 1.8 1996/12/05 13:17:49 quinn
38 * Fixed GRS-1 null-ref
40 * Revision 1.7 1996/10/11 11:57:23 quinn
43 * Revision 1.6 1996/07/06 19:58:34 quinn
44 * System headerfiles gathered in yconfig
46 * Revision 1.5 1996/06/03 09:46:42 quinn
47 * Added OID data type.
49 * Revision 1.4 1996/05/01 12:45:30 quinn
50 * Support use of local tag names in abs file.
52 * Revision 1.3 1995/11/13 09:27:35 quinn
53 * Fiddling with the variant stuff.
55 * Revision 1.2 1995/11/01 13:54:46 quinn
58 * Revision 1.1 1995/11/01 11:56:07 quinn
59 * Added Retrieval (data management) functions en masse.
67 #include <yaz/proto.h>
69 #include <yaz/data1.h>
71 #define D1_VARIANTARRAY 20 /* fixed max length on sup'd variant-list. Lazy me */
73 static Z_ElementMetaData *get_ElementMetaData(ODR o)
75 Z_ElementMetaData *r = (Z_ElementMetaData *)odr_malloc(o, sizeof(*r));
82 r->num_supportedVariants = 0;
83 r->supportedVariants = 0;
85 r->elementDescriptor = 0;
87 r->surrogateElement = 0;
94 * N should point to the *last* (leaf) triple in a sequence. Construct a variant
95 * from each of the triples beginning (ending) with 'n', up to the
96 * nearest parent tag. num should equal the number of triples in the
99 static Z_Variant *make_variant(data1_node *n, int num, ODR o)
101 Z_Variant *v = (Z_Variant *)odr_malloc(o, sizeof(*v));
104 v->globalVariantSetId = 0;
105 v->num_triples = num;
106 v->triples = (Z_Triple **)odr_malloc(o, sizeof(Z_Triple*) * num);
109 * cycle back up through the tree of variants
110 * (traversing exactly 'level' variants).
112 for (p = n, num--; p && num >= 0; p = p->parent, num--)
116 assert(p->which == DATA1N_variant);
117 t = v->triples[num] = (Z_Triple *)odr_malloc(o, sizeof(*t));
119 t->zclass = (int *)odr_malloc(o, sizeof(int));
120 *t->zclass = p->u.variant.type->zclass->zclass;
121 t->type = (int *)odr_malloc(o, sizeof(int));
122 *t->type = p->u.variant.type->type;
124 switch (p->u.variant.type->datatype)
127 t->which = Z_Triple_internationalString;
128 t->value.internationalString =
129 odr_strdup(o, p->u.variant.value);
132 yaz_log(LOG_WARN, "Unable to handle value for variant %s",
133 p->u.variant.type->name);
141 * Traverse the variant children of n, constructing a supportedVariant list.
143 static int traverse_triples(data1_node *n, int level, Z_ElementMetaData *m,
148 for (c = n->child; c; c = c->next)
149 if (c->which == DATA1N_data && level)
151 if (!m->supportedVariants)
152 m->supportedVariants = (Z_Variant **)odr_malloc(o, sizeof(Z_Variant*) *
154 else if (m->num_supportedVariants >= D1_VARIANTARRAY)
156 yaz_log(LOG_WARN, "Too many variants (D1_VARIANTARRAY==%d)",
161 if (!(m->supportedVariants[m->num_supportedVariants++] =
162 make_variant(n, level, o)))
165 else if (c->which == DATA1N_variant)
166 if (traverse_triples(c, level+1, m, o) < 0)
171 static Z_ElementData *nodetoelementdata(data1_handle dh, data1_node *n,
172 int select, int leaf,
175 Z_ElementData *res = (Z_ElementData *)odr_malloc(o, sizeof(*res));
179 res->which = Z_ElementData_elementNotThere;
180 res->u.elementNotThere = odr_nullval();
182 else if (n->which == DATA1N_data && (leaf || n->next == NULL))
188 for (p = n->parent; p && p->which != DATA1N_tag; p = p->parent)
191 switch (n->u.data.what)
194 res->which = Z_ElementData_numeric;
195 res->u.numeric = (int *)odr_malloc(o, sizeof(int));
196 *res->u.numeric = atoi(n->u.data.data);
200 toget = n->u.data.len;
201 if (p->u.tag.get_bytes > 0 && p->u.tag.get_bytes < toget)
202 toget = p->u.tag.get_bytes;
203 res->which = Z_ElementData_string;
204 res->u.string = (char *)odr_malloc(o, toget+1);
205 memcpy(res->u.string, n->u.data.data, toget);
206 res->u.string[toget] = '\0';
210 res->which = Z_ElementData_oid;
211 strncpy(str, n->u.data.data, n->u.data.len);
212 str[n->u.data.len] = '\0';
213 res->u.oid = odr_getoidbystr(o, str);
214 *len += n->u.data.len;
217 yaz_log(LOG_WARN, "Can't handle datatype.");
223 res->which = Z_ElementData_subtree;
224 if (!(res->u.subtree = data1_nodetogr (dh, n->parent, select, o, len)))
230 static Z_TaggedElement *nodetotaggedelement(data1_handle dh, data1_node *n,
234 Z_TaggedElement *res = (Z_TaggedElement *)odr_malloc(o, sizeof(*res));
239 if (n->which == DATA1N_tag)
241 if (n->u.tag.element)
242 tag = n->u.tag.element->tag;
247 * If we're a data element at this point, we need to insert a
248 * wellKnown tag to wrap us up.
250 else if (n->which == DATA1N_data || n->which == DATA1N_variant)
252 if (!(tag = data1_gettagbyname (dh, n->root->u.root.absyn->tagset,
255 yaz_log(LOG_WARN, "Unable to locate tag for 'wellKnown'");
263 yaz_log(LOG_WARN, "Bad data.");
267 res->tagType = (int *)odr_malloc(o, sizeof(int));
268 *res->tagType = (tag && tag->tagset) ? tag->tagset->type : 3;
269 res->tagValue = (Z_StringOrNumeric *)odr_malloc(o, sizeof(Z_StringOrNumeric));
270 if (tag && tag->which == DATA1T_numeric)
272 res->tagValue->which = Z_StringOrNumeric_numeric;
273 res->tagValue->u.numeric = (int *)odr_malloc(o, sizeof(int));
274 *res->tagValue->u.numeric = tag->value.numeric;
280 if (n->which == DATA1N_tag)
281 tagstr = n->u.tag.tag; /* tag at node */
283 tagstr = tag->value.string; /* no take from well-known */
285 tagstr = "?"; /* no tag at all! */
286 res->tagValue->which = Z_StringOrNumeric_string;
287 res->tagValue->u.string = odr_strdup(o, tagstr);
289 res->tagOccurrence = 0;
290 res->appliedVariant = 0;
292 if (n->which == DATA1N_variant || (data && data->which ==
293 DATA1N_variant && data->next == NULL))
297 res->metaData = get_ElementMetaData(o);
298 if (n->which == DATA1N_tag && n->u.tag.make_variantlist)
299 if (traverse_triples(data, 0, res->metaData, o) < 0)
301 while (data && data->which == DATA1N_variant)
306 if (n->which != DATA1N_tag || !n->u.tag.no_data_requested)
307 res->appliedVariant = make_variant(data->parent, nvars-1, o);
309 if (n->which == DATA1N_tag && n->u.tag.no_data_requested)
311 res->content = (Z_ElementData *)odr_malloc(o, sizeof(*res->content));
312 res->content->which = Z_ElementData_noDataRequested;
313 res->content->u.noDataRequested = odr_nullval();
315 else if (!(res->content = nodetoelementdata (dh, data, select, leaf,
322 Z_GenericRecord *data1_nodetogr(data1_handle dh, data1_node *n,
323 int select, ODR o, int *len)
325 Z_GenericRecord *res = (Z_GenericRecord *)odr_malloc(o, sizeof(*res));
327 int num_children = 0;
329 for (c = n->child; c; c = c->next)
332 res->elements = (Z_TaggedElement **)odr_malloc(o, sizeof(Z_TaggedElement *) * num_children);
333 res->num_elements = 0;
334 for (c = n->child; c; c = c->next)
336 if (c->which == DATA1N_tag && select && !c->u.tag.node_selected)
338 if (!(res->elements[res->num_elements++] =
339 nodetotaggedelement (dh, c, select, o, len)))