1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2009 Index Data
4 Pazpar2 is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 \brief high-level logic; mostly user sessions and settings
41 #include <yaz/marcdisp.h>
42 #include <yaz/comstack.h>
43 #include <yaz/tcpip.h>
44 #include <yaz/proto.h>
45 #include <yaz/readconf.h>
46 #include <yaz/pquery.h>
47 #include <yaz/otherinfo.h>
48 #include <yaz/yaz-util.h>
50 #include <yaz/query-charset.h>
51 #include <yaz/querytowrbuf.h>
52 #include <yaz/oid_db.h>
53 #include <yaz/snprintf.h>
57 #include <yaz/timing.h>
60 #include "parameters.h"
64 #include "termlists.h"
66 #include "relevance.h"
70 #include "normalize7bit.h"
72 #define TERMLIST_HIGH_SCORE 25
76 // Note: Some things in this structure will eventually move to configuration
77 struct parameters global_parameters =
84 static void log_xml_doc(xmlDoc *doc)
86 FILE *lf = yaz_log_file();
89 #if LIBXML_VERSION >= 20600
90 xmlDocDumpFormatMemory(doc, &result, &len, 1);
92 xmlDocDumpMemory(doc, &result, &len);
96 fwrite(result, 1, len, lf);
102 // Recursively traverse query structure to extract terms.
103 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
115 pull_terms(nmem, n->u.p[0], termlist, num);
116 pull_terms(nmem, n->u.p[1], termlist, num);
119 nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
120 for (i = 0; i < numwords; i++)
121 termlist[(*num)++] = words[i];
130 static void add_facet(struct session *s, const char *type, const char *value)
136 for (i = 0; i < s->num_termlists; i++)
137 if (!strcmp(s->termlists[i].name, type))
139 if (i == s->num_termlists)
141 if (i == SESSION_MAX_TERMLISTS)
143 yaz_log(YLOG_FATAL, "Too many termlists");
147 s->termlists[i].name = nmem_strdup(s->nmem, type);
148 s->termlists[i].termlist
149 = termlist_create(s->nmem, s->expected_maxrecs,
150 TERMLIST_HIGH_SCORE);
151 s->num_termlists = i + 1;
153 termlist_insert(s->termlists[i].termlist, value);
156 static xmlDoc *record_to_xml(struct session_database *sdb, const char *rec)
158 struct database *db = sdb->database;
161 rdoc = xmlParseMemory(rec, strlen(rec));
165 yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
170 if (global_parameters.dump_records)
172 yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
179 #define MAX_XSLT_ARGS 16
181 // Add static values from session database settings if applicable
182 static void insert_settings_parameters(struct session_database *sdb,
183 struct session *se, char **parms)
185 struct conf_service *service = se->service;
190 for (i = 0; i < service->num_metadata; i++)
192 struct conf_metadata *md = &service->metadata[i];
195 if (md->setting == Metadata_setting_parameter &&
196 (setting = settings_offset(service, md->name)) > 0)
198 const char *val = session_setting_oneval(sdb, setting);
199 if (val && nparms < MAX_XSLT_ARGS)
202 int len = strlen(val);
203 buf = nmem_malloc(se->nmem, len + 3);
205 strcpy(buf + 1, val);
208 parms[offset++] = md->name;
209 parms[offset++] = buf;
217 // Add static values from session database settings if applicable
218 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
219 struct conf_service *service)
223 for (i = 0; i < service->num_metadata; i++)
225 struct conf_metadata *md = &service->metadata[i];
228 if (md->setting == Metadata_setting_postproc &&
229 (offset = settings_offset(service, md->name)) > 0)
231 const char *val = session_setting_oneval(sdb, offset);
234 xmlNode *r = xmlDocGetRootElement(doc);
235 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
237 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
243 static xmlDoc *normalize_record(struct session_database *sdb,
247 xmlDoc *rdoc = record_to_xml(sdb, rec);
251 char *parms[MAX_XSLT_ARGS*2+1];
253 insert_settings_parameters(sdb, se, parms);
255 if (normalize_record_transform(sdb->map, &rdoc, (const char **)parms))
257 yaz_log(YLOG_WARN, "Normalize failed from %s", sdb->database->url);
261 insert_settings_values(sdb, rdoc, se->service);
263 if (global_parameters.dump_records)
265 yaz_log(YLOG_LOG, "Normalized record from %s",
274 // Retrieve first defined value for 'name' for given database.
275 // Will be extended to take into account user associated with session
276 const char *session_setting_oneval(struct session_database *db, int offset)
278 if (!db->settings[offset])
280 return db->settings[offset]->value;
283 // Prepare XSLT stylesheets for record normalization
284 // Structures are allocated on the session_wide nmem to avoid having
285 // to recompute this for every search. This would lead
286 // to leaking if a single session was to repeatedly change the PZ_XSLT
287 // setting. However, this is not a realistic use scenario.
288 static int prepare_map(struct session *se, struct session_database *sdb)
294 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
297 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
299 char auto_stylesheet[256];
301 if (!strcmp(s, "auto"))
303 const char *request_syntax = session_setting_oneval(
304 sdb, PZ_REQUESTSYNTAX);
308 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
309 "%s.xsl", request_syntax);
310 for (cp = auto_stylesheet; *cp; cp++)
312 /* deliberately only consider ASCII */
313 if (*cp > 32 && *cp < 127)
320 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
323 sdb->map = normalize_record_create(se->service, s);
330 // This analyzes settings and recomputes any supporting data structures
332 static int prepare_session_database(struct session *se,
333 struct session_database *sdb)
338 "No settings associated with %s", sdb->database->url);
341 if (sdb->settings[PZ_XSLT] && !sdb->map)
343 if (prepare_map(se, sdb) < 0)
349 // called if watch should be removed because http_channel is to be destroyed
350 static void session_watch_cancel(void *data, struct http_channel *c,
353 struct session_watchentry *ent = data;
360 // set watch. Returns 0=OK, -1 if watch is already set
361 int session_set_watch(struct session *s, int what,
362 session_watchfun fun, void *data,
363 struct http_channel *chan)
365 if (s->watchlist[what].fun)
367 s->watchlist[what].fun = fun;
368 s->watchlist[what].data = data;
369 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
370 session_watch_cancel);
374 void session_alert_watch(struct session *s, int what)
376 if (s->watchlist[what].fun)
378 /* our watch is no longer associated with http_channel */
380 session_watchfun fun;
382 http_remove_observer(s->watchlist[what].obs);
383 fun = s->watchlist[what].fun;
384 data = s->watchlist[what].data;
386 /* reset watch before fun is invoked - in case fun wants to set
388 s->watchlist[what].fun = 0;
389 s->watchlist[what].data = 0;
390 s->watchlist[what].obs = 0;
396 //callback for grep_databases
397 static void select_targets_callback(void *context, struct session_database *db)
399 struct session *se = (struct session*) context;
400 struct client *cl = client_create();
401 client_set_database(cl, db);
402 client_set_session(cl, se);
405 // Associates a set of clients with a session;
406 // Note: Session-databases represent databases with per-session
408 int select_targets(struct session *se, struct database_criterion *crit)
411 client_destroy(se->clients);
413 return session_grep_databases(se, crit, select_targets_callback);
416 int session_active_clients(struct session *s)
421 for (c = s->clients; c; c = client_next_in_session(c))
422 if (client_is_active(c))
428 // parses crit1=val1,crit2=val2|val3,...
429 static struct database_criterion *parse_filter(NMEM m, const char *buf)
431 struct database_criterion *res = 0;
438 nmem_strsplit(m, ",", buf, &values, &num);
439 for (i = 0; i < num; i++)
444 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
446 if ((eq = strchr(values[i], '=')))
447 new->type = PAZPAR2_STRING_MATCH;
448 if ((eq = strchr(values[i], '~')))
449 new->type = PAZPAR2_SUBSTRING_MATCH;
452 yaz_log(YLOG_WARN, "Missing equal-signi/tilde in filter");
456 new->name = values[i];
457 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
459 for (subi = 0; subi < subnum; subi++)
461 struct database_criterion_value *newv
462 = nmem_malloc(m, sizeof(*newv));
463 newv->value = subvalues[subi];
464 newv->next = new->values;
473 enum pazpar2_error_code search(struct session *se,
474 const char *query, const char *filter,
475 const char **addinfo)
477 int live_channels = 0;
481 struct database_criterion *criteria;
483 yaz_log(YLOG_DEBUG, "Search");
486 nmem_reset(se->nmem);
488 se->total_records = se->total_hits = se->total_merged = 0;
490 se->num_termlists = 0;
491 criteria = parse_filter(se->nmem, filter);
492 live_channels = select_targets(se, criteria);
495 int maxrecs = live_channels * global_parameters.toget; // This is buggy!!!
496 se->reclist = reclist_create(se->nmem, maxrecs);
497 se->expected_maxrecs = maxrecs;
500 return PAZPAR2_NO_TARGETS;
502 for (cl = se->clients; cl; cl = client_next_in_session(cl))
504 if (prepare_session_database(se, client_get_database(cl)) < 0)
506 // Parse query for target
507 if (client_parse_query(cl, query) < 0)
512 if (client_prep_connection(cl, se->service->z3950_operation_timeout,
513 se->service->z3950_session_timeout))
514 client_start_search(cl);
522 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
525 return PAZPAR2_NO_TARGETS;
527 return PAZPAR2_NO_ERROR;
530 // Creates a new session_database object for a database
531 static void session_init_databases_fun(void *context, struct database *db)
533 struct session *se = (struct session *) context;
534 struct conf_service *service = se->service;
535 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
536 int num = settings_num(service);
543 = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
544 memset(new->settings, 0, sizeof(struct settings*) * num);
548 for (i = 0; i < num; i++)
549 new->settings[i] = db->settings[i];
551 new->next = se->databases;
555 // Doesn't free memory associated with sdb -- nmem takes care of that
556 static void session_database_destroy(struct session_database *sdb)
558 normalize_record_destroy(sdb->map);
562 // Initialize session_database list -- this represents this session's view
563 // of the database list -- subject to modification by the settings ws command
564 void session_init_databases(struct session *se)
567 predef_grep_databases(se, se->service, 0, session_init_databases_fun);
570 // Probably session_init_databases_fun should be refactored instead of
572 static struct session_database *load_session_database(struct session *se,
575 struct database *db = find_database(id, 0, se->service);
577 resolve_database(db);
579 session_init_databases_fun((void*) se, db);
580 // New sdb is head of se->databases list
581 return se->databases;
584 // Find an existing session database. If not found, load it
585 static struct session_database *find_session_database(struct session *se,
588 struct session_database *sdb;
590 for (sdb = se->databases; sdb; sdb = sdb->next)
591 if (!strcmp(sdb->database->url, id))
593 return load_session_database(se, id);
596 // Apply a session override to a database
597 void session_apply_setting(struct session *se, char *dbname, char *setting,
600 struct session_database *sdb = find_session_database(se, dbname);
601 struct conf_service *service = se->service;
602 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
603 int offset = settings_offset_cprefix(service, setting);
607 yaz_log(YLOG_WARN, "Unknown setting %s", setting);
610 // Jakub: This breaks the filter setting.
611 /*if (offset == PZ_ID)
613 yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
617 new->target = dbname;
620 new->next = sdb->settings[offset];
621 sdb->settings[offset] = new;
623 // Force later recompute of settings-driven data structures
624 // (happens when a search starts and client connections are prepared)
630 normalize_record_destroy(sdb->map);
637 void destroy_session(struct session *s)
639 struct session_database *sdb;
642 client_destroy(s->clients);
643 for (sdb = s->databases; sdb; sdb = sdb->next)
644 session_database_destroy(sdb);
645 nmem_destroy(s->nmem);
646 service_destroy(s->service);
647 wrbuf_destroy(s->wrbuf);
650 struct session *new_session(NMEM nmem, struct conf_service *service)
653 struct session *session = nmem_malloc(nmem, sizeof(*session));
655 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
657 session->service = service;
658 session->relevance = 0;
659 session->total_hits = 0;
660 session->total_records = 0;
661 session->number_of_warnings_unknown_elements = 0;
662 session->number_of_warnings_unknown_metadata = 0;
663 session->num_termlists = 0;
664 session->reclist = 0;
665 session->clients = 0;
666 session->expected_maxrecs = 0;
667 session->session_nmem = nmem;
668 session->nmem = nmem_create();
669 session->wrbuf = wrbuf_alloc();
670 session->databases = 0;
671 for (i = 0; i <= SESSION_WATCH_MAX; i++)
673 session->watchlist[i].data = 0;
674 session->watchlist[i].fun = 0;
679 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
681 struct hitsbytarget *res = 0;
685 for (cl = se->clients; cl; cl = client_next_in_session(cl))
688 res = nmem_malloc(nmem, sizeof(*res) * sz);
690 for (cl = se->clients; cl; cl = client_next_in_session(cl))
692 const char *name = session_setting_oneval(client_get_database(cl),
695 res[*count].id = client_get_database(cl)->database->url;
696 res[*count].name = *name ? name : "Unknown";
697 res[*count].hits = client_get_hits(cl);
698 res[*count].records = client_get_num_records(cl);
699 res[*count].diagnostic = client_get_diagnostic(cl);
700 res[*count].state = client_get_state_str(cl);
701 res[*count].connected = client_get_connection(cl) ? 1 : 0;
707 struct termlist_score **termlist(struct session *s, const char *name, int *num)
711 for (i = 0; i < s->num_termlists; i++)
712 if (!strcmp((const char *) s->termlists[i].name, name))
713 return termlist_highscore(s->termlists[i].termlist, num);
717 #ifdef MISSING_HEADERS
718 void report_nmem_stats(void)
720 size_t in_use, is_free;
722 nmem_get_memory_in_use(&in_use);
723 nmem_get_memory_free(&is_free);
725 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
726 (long) in_use, (long) is_free);
730 struct record_cluster *show_single(struct session *s, const char *id,
731 struct record_cluster **prev_r,
732 struct record_cluster **next_r)
734 struct record_cluster *r;
736 reclist_rewind(s->reclist);
739 while ((r = reclist_read_record(s->reclist)))
741 if (!strcmp(r->recid, id))
743 *next_r = reclist_read_record(s->reclist);
751 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
752 int start, int *num, int *total, int *sumhits,
755 struct record_cluster **recs = nmem_malloc(nmem_show, *num
756 * sizeof(struct record_cluster *));
757 struct reclist_sortparms *spp;
760 yaz_timing_t t = yaz_timing_create();
772 for (spp = sp; spp; spp = spp->next)
773 if (spp->type == Metadata_sortkey_relevance)
775 relevance_prepare_read(s->relevance, s->reclist);
778 reclist_sort(s->reclist, sp);
780 *total = s->reclist->num_records;
781 *sumhits = s->total_hits;
783 for (i = 0; i < start; i++)
784 if (!reclist_read_record(s->reclist))
791 for (i = 0; i < *num; i++)
793 struct record_cluster *r = reclist_read_record(s->reclist);
804 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
805 yaz_timing_get_real(t), yaz_timing_get_user(t),
806 yaz_timing_get_sys(t));
807 yaz_timing_destroy(&t);
812 void statistics(struct session *se, struct statistics *stat)
817 memset(stat, 0, sizeof(*stat));
818 for (cl = se->clients; cl; cl = client_next_in_session(cl))
820 if (!client_get_connection(cl))
821 stat->num_no_connection++;
822 switch (client_get_state(cl))
824 case Client_Connecting: stat->num_connecting++; break;
825 case Client_Working: stat->num_working++; break;
826 case Client_Idle: stat->num_idle++; break;
827 case Client_Failed: stat->num_failed++; break;
828 case Client_Error: stat->num_error++; break;
833 stat->num_hits = se->total_hits;
834 stat->num_records = se->total_records;
836 stat->num_clients = count;
840 // Master list of connections we're handling events to
841 static IOCHAN channel_list = 0; /* thread pr */
843 void pazpar2_add_channel(IOCHAN chan)
845 chan->next = channel_list;
849 void pazpar2_event_loop()
851 event_loop(&channel_list);
854 static struct record_metadata *record_metadata_init(
855 NMEM nmem, char *value, enum conf_metadata_type type)
857 struct record_metadata *rec_md = record_metadata_create(nmem);
858 if (type == Metadata_type_generic)
861 p = normalize7bit_generic(p, " ,/.:([");
863 rec_md->data.text.disp = nmem_strdup(nmem, p);
864 rec_md->data.text.sort = 0;
866 else if (type == Metadata_type_year || type == Metadata_type_date)
871 if (type == Metadata_type_date)
873 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
876 rec_md->data.number.min = first;
877 rec_md->data.number.max = last;
884 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
885 struct conf_service *service, WRBUF norm_wr)
889 for (n = root->children; n; n = n->next)
891 if (n->type != XML_ELEMENT_NODE)
893 if (!strcmp((const char *) n->name, "metadata"))
895 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
896 if (!strcmp(name, (const char *) type))
898 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
901 const char *norm_str;
902 pp2_relevance_token_t prt =
903 pp2_relevance_tokenize(
904 service->mergekey_pct,
905 (const char *) value);
907 wrbuf_puts(norm_wr, name);
908 wrbuf_puts(norm_wr, "=");
910 pp2_relevance_token_next(prt)))
914 if (wrbuf_len(norm_wr))
915 wrbuf_puts(norm_wr, " ");
916 wrbuf_puts(norm_wr, norm_str);
920 pp2_relevance_token_destroy(prt);
930 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
931 struct conf_service *service, NMEM nmem)
933 char *mergekey_norm = 0;
934 xmlNode *root = xmlDocGetRootElement(doc);
935 WRBUF norm_wr = wrbuf_alloc();
937 /* consider mergekey from XSL first */
938 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
941 const char *norm_str;
942 pp2_relevance_token_t prt =
943 pp2_relevance_tokenize(
944 service->mergekey_pct,
945 (const char *) mergekey);
947 while ((norm_str = pp2_relevance_token_next(prt)))
951 if (wrbuf_len(norm_wr))
952 wrbuf_puts(norm_wr, " ");
953 wrbuf_puts(norm_wr, norm_str);
956 pp2_relevance_token_destroy(prt);
961 /* no mergekey defined in XSL. Look for mergekey metadata instead */
963 for (field_id = 0; field_id < service->num_metadata; field_id++)
965 struct conf_metadata *ser_md = &service->metadata[field_id];
966 if (ser_md->mergekey != Metadata_mergekey_no)
968 int r = get_mergekey_from_doc(doc, root, ser_md->name,
970 if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
972 /* no mergekey on this one and it is required..
973 Generate unique key instead */
974 wrbuf_rewind(norm_wr);
981 /* generate unique key if none is not generated already or is empty */
982 if (wrbuf_len(norm_wr) == 0)
984 wrbuf_printf(norm_wr, "%s-%d",
985 client_get_database(cl)->database->url, record_no);
987 if (wrbuf_len(norm_wr) > 0)
988 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
989 wrbuf_destroy(norm_wr);
990 return mergekey_norm;
993 /** \brief see if metadata for pz:recordfilter exists
994 \param root xml root element of normalized record
995 \param sdb session database for client
996 \retval 0 if there is no metadata for pz:recordfilter
997 \retval 1 if there is metadata for pz:recordfilter
999 If there is no pz:recordfilter defined, this function returns 1
1003 static int check_record_filter(xmlNode *root, struct session_database *sdb)
1008 s = session_setting_oneval(sdb, PZ_RECORDFILTER);
1013 for (n = root->children; n; n = n->next)
1015 if (n->type != XML_ELEMENT_NODE)
1017 if (!strcmp((const char *) n->name, "metadata"))
1019 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1023 const char *eq = strchr(s, '=');
1028 if (len == strlen((const char *)type) &&
1029 !memcmp((const char *) type, s, len))
1031 xmlChar *value = xmlNodeGetContent(n);
1032 if (value && *value)
1034 if (!eq || strstr((const char *) value, eq+1))
1047 /** \brief ingest XML record
1048 \param cl client holds the result set for record
1049 \param rec record buffer (0 terminated)
1050 \param record_no record position (1, 2, ..)
1051 \returns resulting record or NULL on failure
1053 struct record *ingest_record(struct client *cl, const char *rec,
1056 struct session_database *sdb = client_get_database(cl);
1057 struct session *se = client_get_session(cl);
1058 xmlDoc *xdoc = normalize_record(sdb, se, rec);
1060 struct record *record;
1061 struct record_cluster *cluster;
1062 const char *mergekey_norm;
1065 struct conf_service *service = se->service;
1070 root = xmlDocGetRootElement(xdoc);
1072 if (!check_record_filter(root, sdb))
1074 yaz_log(YLOG_WARN, "Filtered out record no %d from %s", record_no,
1075 sdb->database->url);
1080 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
1083 yaz_log(YLOG_WARN, "Got no mergekey");
1087 record = record_create(se->nmem,
1088 service->num_metadata, service->num_sortkeys, cl,
1091 cluster = reclist_insert(se->reclist,
1093 record, (char *) mergekey_norm,
1095 if (global_parameters.dump_records)
1096 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1097 sdb->database->url, record_no);
1100 /* no room for record */
1104 relevance_newrec(se->relevance, cluster);
1106 // now parsing XML record and adding data to cluster or record metadata
1107 for (n = root->children; n; n = n->next)
1109 pp2_relevance_token_t prt;
1116 if (n->type != XML_ELEMENT_NODE)
1118 if (!strcmp((const char *) n->name, "metadata"))
1120 struct conf_metadata *ser_md = 0;
1121 struct conf_sortkey *ser_sk = 0;
1122 struct record_metadata **wheretoput = 0;
1123 struct record_metadata *rec_md = 0;
1124 int md_field_id = -1;
1125 int sk_field_id = -1;
1127 type = xmlGetProp(n, (xmlChar *) "type");
1128 value = xmlNodeListGetString(xdoc, n->children, 1);
1130 if (!type || !value || !*value)
1134 = conf_service_metadata_field_id(service, (const char *) type);
1135 if (md_field_id < 0)
1137 if (se->number_of_warnings_unknown_metadata == 0)
1140 "Ignoring unknown metadata element: %s", type);
1142 se->number_of_warnings_unknown_metadata++;
1146 ser_md = &service->metadata[md_field_id];
1148 if (ser_md->sortkey_offset >= 0){
1149 sk_field_id = ser_md->sortkey_offset;
1150 ser_sk = &service->sortkeys[sk_field_id];
1153 // non-merged metadata
1154 rec_md = record_metadata_init(se->nmem, (char *) value,
1158 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1162 wheretoput = &record->metadata[md_field_id];
1164 wheretoput = &(*wheretoput)->next;
1165 *wheretoput = rec_md;
1168 rec_md = record_metadata_init(se->nmem, (char *) value,
1170 wheretoput = &cluster->metadata[md_field_id];
1172 // and polulate with data:
1173 // assign cluster or record based on merge action
1174 if (ser_md->merge == Metadata_merge_unique)
1176 struct record_metadata *mnode;
1177 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1178 if (!strcmp((const char *) mnode->data.text.disp,
1179 rec_md->data.text.disp))
1183 rec_md->next = *wheretoput;
1184 *wheretoput = rec_md;
1187 else if (ser_md->merge == Metadata_merge_longest)
1190 || strlen(rec_md->data.text.disp)
1191 > strlen((*wheretoput)->data.text.disp))
1193 *wheretoput = rec_md;
1196 const char *sort_str = 0;
1198 ser_sk->type == Metadata_sortkey_skiparticle;
1200 if (!cluster->sortkeys[sk_field_id])
1201 cluster->sortkeys[sk_field_id] =
1202 nmem_malloc(se->nmem,
1203 sizeof(union data_types));
1205 prt = pp2_relevance_tokenize(
1207 rec_md->data.text.disp);
1209 pp2_relevance_token_next(prt);
1211 sort_str = pp2_get_sort(prt, skip_article);
1213 cluster->sortkeys[sk_field_id]->text.disp =
1214 rec_md->data.text.disp;
1217 sort_str = rec_md->data.text.disp;
1219 "Could not make sortkey. Bug #1858");
1221 cluster->sortkeys[sk_field_id]->text.sort =
1222 nmem_strdup(se->nmem, sort_str);
1224 yaz_log(YLOG_LOG, "text disp=%s",
1225 cluster->sortkeys[sk_field_id]->text.disp);
1226 yaz_log(YLOG_LOG, "text sort=%s",
1227 cluster->sortkeys[sk_field_id]->text.sort);
1229 pp2_relevance_token_destroy(prt);
1233 else if (ser_md->merge == Metadata_merge_all)
1235 rec_md->next = *wheretoput;
1236 *wheretoput = rec_md;
1238 else if (ser_md->merge == Metadata_merge_range)
1242 *wheretoput = rec_md;
1244 cluster->sortkeys[sk_field_id]
1249 int this_min = rec_md->data.number.min;
1250 int this_max = rec_md->data.number.max;
1251 if (this_min < (*wheretoput)->data.number.min)
1252 (*wheretoput)->data.number.min = this_min;
1253 if (this_max > (*wheretoput)->data.number.max)
1254 (*wheretoput)->data.number.max = this_max;
1259 // ranking of _all_ fields enabled ...
1261 relevance_countwords(se->relevance, cluster,
1262 (char *) value, ser_md->rank);
1264 // construct facets ...
1265 if (ser_md->termlist)
1267 if (ser_md->type == Metadata_type_year)
1270 sprintf(year, "%d", rec_md->data.number.max);
1271 add_facet(se, (char *) type, year);
1272 if (rec_md->data.number.max != rec_md->data.number.min)
1274 sprintf(year, "%d", rec_md->data.number.min);
1275 add_facet(se, (char *) type, year);
1279 add_facet(se, (char *) type, (char *) value);
1289 if (se->number_of_warnings_unknown_elements == 0)
1291 "Unexpected element in internal record: %s", n->name);
1292 se->number_of_warnings_unknown_elements++;
1302 relevance_donerecord(se->relevance, cluster);
1303 se->total_records++;
1313 * c-file-style: "Stroustrup"
1314 * indent-tabs-mode: nil
1316 * vim: shiftwidth=4 tabstop=8 expandtab