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 =
83 static void log_xml_doc(xmlDoc *doc)
85 FILE *lf = yaz_log_file();
88 #if LIBXML_VERSION >= 20600
89 xmlDocDumpFormatMemory(doc, &result, &len, 1);
91 xmlDocDumpMemory(doc, &result, &len);
95 fwrite(result, 1, len, lf);
101 // Recursively traverse query structure to extract terms.
102 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
114 pull_terms(nmem, n->u.p[0], termlist, num);
115 pull_terms(nmem, n->u.p[1], termlist, num);
118 nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
119 for (i = 0; i < numwords; i++)
120 termlist[(*num)++] = words[i];
129 static void add_facet(struct session *s, const char *type, const char *value)
135 for (i = 0; i < s->num_termlists; i++)
136 if (!strcmp(s->termlists[i].name, type))
138 if (i == s->num_termlists)
140 if (i == SESSION_MAX_TERMLISTS)
142 yaz_log(YLOG_FATAL, "Too many termlists");
146 s->termlists[i].name = nmem_strdup(s->nmem, type);
147 s->termlists[i].termlist
148 = termlist_create(s->nmem, TERMLIST_HIGH_SCORE);
149 s->num_termlists = i + 1;
151 termlist_insert(s->termlists[i].termlist, value);
154 static xmlDoc *record_to_xml(struct session_database *sdb, const char *rec)
156 struct database *db = sdb->database;
159 rdoc = xmlParseMemory(rec, strlen(rec));
163 yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
168 if (global_parameters.dump_records)
170 yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
177 #define MAX_XSLT_ARGS 16
179 // Add static values from session database settings if applicable
180 static void insert_settings_parameters(struct session_database *sdb,
181 struct session *se, char **parms)
183 struct conf_service *service = se->service;
188 for (i = 0; i < service->num_metadata; i++)
190 struct conf_metadata *md = &service->metadata[i];
193 if (md->setting == Metadata_setting_parameter &&
194 (setting = settings_offset(service, md->name)) > 0)
196 const char *val = session_setting_oneval(sdb, setting);
197 if (val && nparms < MAX_XSLT_ARGS)
200 int len = strlen(val);
201 buf = nmem_malloc(se->nmem, len + 3);
203 strcpy(buf + 1, val);
206 parms[offset++] = md->name;
207 parms[offset++] = buf;
215 // Add static values from session database settings if applicable
216 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
217 struct conf_service *service)
221 for (i = 0; i < service->num_metadata; i++)
223 struct conf_metadata *md = &service->metadata[i];
226 if (md->setting == Metadata_setting_postproc &&
227 (offset = settings_offset(service, md->name)) > 0)
229 const char *val = session_setting_oneval(sdb, offset);
232 xmlNode *r = xmlDocGetRootElement(doc);
233 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
235 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
241 static xmlDoc *normalize_record(struct session_database *sdb,
245 xmlDoc *rdoc = record_to_xml(sdb, rec);
249 char *parms[MAX_XSLT_ARGS*2+1];
251 insert_settings_parameters(sdb, se, parms);
253 if (normalize_record_transform(sdb->map, &rdoc, (const char **)parms))
255 yaz_log(YLOG_WARN, "Normalize failed from %s", sdb->database->url);
259 insert_settings_values(sdb, rdoc, se->service);
261 if (global_parameters.dump_records)
263 yaz_log(YLOG_LOG, "Normalized record from %s",
272 // Retrieve first defined value for 'name' for given database.
273 // Will be extended to take into account user associated with session
274 const char *session_setting_oneval(struct session_database *db, int offset)
276 if (!db->settings[offset])
278 return db->settings[offset]->value;
281 // Prepare XSLT stylesheets for record normalization
282 // Structures are allocated on the session_wide nmem to avoid having
283 // to recompute this for every search. This would lead
284 // to leaking if a single session was to repeatedly change the PZ_XSLT
285 // setting. However, this is not a realistic use scenario.
286 static int prepare_map(struct session *se, struct session_database *sdb)
292 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
295 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
297 char auto_stylesheet[256];
299 if (!strcmp(s, "auto"))
301 const char *request_syntax = session_setting_oneval(
302 sdb, PZ_REQUESTSYNTAX);
306 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
307 "%s.xsl", request_syntax);
308 for (cp = auto_stylesheet; *cp; cp++)
310 /* deliberately only consider ASCII */
311 if (*cp > 32 && *cp < 127)
318 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
321 sdb->map = normalize_cache_get(se->normalize_cache,
329 // This analyzes settings and recomputes any supporting data structures
331 static int prepare_session_database(struct session *se,
332 struct session_database *sdb)
337 "No settings associated with %s", sdb->database->url);
340 if (sdb->settings[PZ_XSLT] && !sdb->map)
342 if (prepare_map(se, sdb) < 0)
348 // called if watch should be removed because http_channel is to be destroyed
349 static void session_watch_cancel(void *data, struct http_channel *c,
352 struct session_watchentry *ent = data;
359 // set watch. Returns 0=OK, -1 if watch is already set
360 int session_set_watch(struct session *s, int what,
361 session_watchfun fun, void *data,
362 struct http_channel *chan)
364 if (s->watchlist[what].fun)
366 s->watchlist[what].fun = fun;
367 s->watchlist[what].data = data;
368 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
369 session_watch_cancel);
373 void session_alert_watch(struct session *s, int what)
375 if (s->watchlist[what].fun)
377 /* our watch is no longer associated with http_channel */
379 session_watchfun fun;
381 http_remove_observer(s->watchlist[what].obs);
382 fun = s->watchlist[what].fun;
383 data = s->watchlist[what].data;
385 /* reset watch before fun is invoked - in case fun wants to set
387 s->watchlist[what].fun = 0;
388 s->watchlist[what].data = 0;
389 s->watchlist[what].obs = 0;
395 //callback for grep_databases
396 static void select_targets_callback(void *context, struct session_database *db)
398 struct session *se = (struct session*) context;
399 struct client *cl = client_create();
400 client_set_database(cl, db);
401 client_set_session(cl, se);
404 // Associates a set of clients with a session;
405 // Note: Session-databases represent databases with per-session
407 int select_targets(struct session *se, struct database_criterion *crit)
410 client_destroy(se->clients);
412 return session_grep_databases(se, crit, select_targets_callback);
415 int session_active_clients(struct session *s)
420 for (c = s->clients; c; c = client_next_in_session(c))
421 if (client_is_active(c))
427 // parses crit1=val1,crit2=val2|val3,...
428 static struct database_criterion *parse_filter(NMEM m, const char *buf)
430 struct database_criterion *res = 0;
437 nmem_strsplit(m, ",", buf, &values, &num);
438 for (i = 0; i < num; i++)
443 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
445 if ((eq = strchr(values[i], '=')))
446 new->type = PAZPAR2_STRING_MATCH;
447 else if ((eq = strchr(values[i], '~')))
448 new->type = PAZPAR2_SUBSTRING_MATCH;
451 yaz_log(YLOG_WARN, "Missing equal-sign/tilde in filter");
455 new->name = values[i];
456 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
458 for (subi = 0; subi < subnum; subi++)
460 struct database_criterion_value *newv
461 = nmem_malloc(m, sizeof(*newv));
462 newv->value = subvalues[subi];
463 newv->next = new->values;
472 enum pazpar2_error_code search(struct session *se,
474 const char *startrecs, const char *maxrecs,
476 const char **addinfo)
478 int live_channels = 0;
482 struct database_criterion *criteria;
484 yaz_log(YLOG_DEBUG, "Search");
487 nmem_reset(se->nmem);
489 se->total_records = se->total_hits = se->total_merged = 0;
491 se->num_termlists = 0;
492 criteria = parse_filter(se->nmem, filter);
493 live_channels = select_targets(se, criteria);
496 se->reclist = reclist_create(se->nmem);
499 return PAZPAR2_NO_TARGETS;
501 for (cl = se->clients; cl; cl = client_next_in_session(cl))
504 client_set_maxrecs(cl, atoi(maxrecs));
506 client_set_startrecs(cl, atoi(startrecs));
507 if (prepare_session_database(se, client_get_database(cl)) < 0)
509 // Parse query for target
510 if (client_parse_query(cl, query) < 0)
515 if (client_prep_connection(cl, se->service->z3950_operation_timeout,
516 se->service->z3950_session_timeout))
517 client_start_search(cl);
525 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
528 return PAZPAR2_NO_TARGETS;
530 return PAZPAR2_NO_ERROR;
533 // Creates a new session_database object for a database
534 static void session_init_databases_fun(void *context, struct database *db)
536 struct session *se = (struct session *) context;
537 struct conf_service *service = se->service;
538 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
539 int num = settings_num(service);
546 = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
547 memset(new->settings, 0, sizeof(struct settings*) * num);
551 for (i = 0; i < num; i++)
552 new->settings[i] = db->settings[i];
554 new->next = se->databases;
558 // Doesn't free memory associated with sdb -- nmem takes care of that
559 static void session_database_destroy(struct session_database *sdb)
564 // Initialize session_database list -- this represents this session's view
565 // of the database list -- subject to modification by the settings ws command
566 void session_init_databases(struct session *se)
569 predef_grep_databases(se, se->service, 0, session_init_databases_fun);
572 // Probably session_init_databases_fun should be refactored instead of
574 static struct session_database *load_session_database(struct session *se,
577 struct database *db = find_database(id, 0, se->service);
579 resolve_database(db);
581 session_init_databases_fun((void*) se, db);
582 // New sdb is head of se->databases list
583 return se->databases;
586 // Find an existing session database. If not found, load it
587 static struct session_database *find_session_database(struct session *se,
590 struct session_database *sdb;
592 for (sdb = se->databases; sdb; sdb = sdb->next)
593 if (!strcmp(sdb->database->url, id))
595 return load_session_database(se, id);
598 // Apply a session override to a database
599 void session_apply_setting(struct session *se, char *dbname, char *setting,
602 struct session_database *sdb = find_session_database(se, dbname);
603 struct conf_service *service = se->service;
604 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
605 int offset = settings_offset_cprefix(service, setting);
609 yaz_log(YLOG_WARN, "Unknown setting %s", setting);
612 // Jakub: This breaks the filter setting.
613 /*if (offset == PZ_ID)
615 yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
619 new->target = dbname;
622 new->next = sdb->settings[offset];
623 sdb->settings[offset] = new;
625 // Force later recompute of settings-driven data structures
626 // (happens when a search starts and client connections are prepared)
638 void destroy_session(struct session *s)
640 struct session_database *sdb;
643 client_destroy(s->clients);
644 for (sdb = s->databases; sdb; sdb = sdb->next)
645 session_database_destroy(sdb);
646 normalize_cache_destroy(s->normalize_cache);
647 nmem_destroy(s->nmem);
648 service_destroy(s->service);
649 wrbuf_destroy(s->wrbuf);
652 struct session *new_session(NMEM nmem, struct conf_service *service)
655 struct session *session = nmem_malloc(nmem, sizeof(*session));
657 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
659 session->service = service;
660 session->relevance = 0;
661 session->total_hits = 0;
662 session->total_records = 0;
663 session->number_of_warnings_unknown_elements = 0;
664 session->number_of_warnings_unknown_metadata = 0;
665 session->num_termlists = 0;
666 session->reclist = 0;
667 session->clients = 0;
668 session->session_nmem = nmem;
669 session->nmem = nmem_create();
670 session->wrbuf = wrbuf_alloc();
671 session->databases = 0;
672 for (i = 0; i <= SESSION_WATCH_MAX; i++)
674 session->watchlist[i].data = 0;
675 session->watchlist[i].fun = 0;
677 session->normalize_cache = normalize_cache_create();
682 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
684 struct hitsbytarget *res = 0;
688 for (cl = se->clients; cl; cl = client_next_in_session(cl))
691 res = nmem_malloc(nmem, sizeof(*res) * sz);
693 for (cl = se->clients; cl; cl = client_next_in_session(cl))
695 const char *name = session_setting_oneval(client_get_database(cl),
698 res[*count].id = client_get_database(cl)->database->url;
699 res[*count].name = *name ? name : "Unknown";
700 res[*count].hits = client_get_hits(cl);
701 res[*count].records = client_get_num_records(cl);
702 res[*count].diagnostic = client_get_diagnostic(cl);
703 res[*count].state = client_get_state_str(cl);
704 res[*count].connected = client_get_connection(cl) ? 1 : 0;
710 struct termlist_score **termlist(struct session *s, const char *name, int *num)
714 for (i = 0; i < s->num_termlists; i++)
715 if (!strcmp((const char *) s->termlists[i].name, name))
716 return termlist_highscore(s->termlists[i].termlist, num);
720 #ifdef MISSING_HEADERS
721 void report_nmem_stats(void)
723 size_t in_use, is_free;
725 nmem_get_memory_in_use(&in_use);
726 nmem_get_memory_free(&is_free);
728 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
729 (long) in_use, (long) is_free);
733 struct record_cluster *show_single(struct session *s, const char *id,
734 struct record_cluster **prev_r,
735 struct record_cluster **next_r)
737 struct record_cluster *r;
739 reclist_rewind(s->reclist);
742 while ((r = reclist_read_record(s->reclist)))
744 if (!strcmp(r->recid, id))
746 *next_r = reclist_read_record(s->reclist);
754 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
755 int start, int *num, int *total, int *sumhits,
758 struct record_cluster **recs = nmem_malloc(nmem_show, *num
759 * sizeof(struct record_cluster *));
760 struct reclist_sortparms *spp;
763 yaz_timing_t t = yaz_timing_create();
775 for (spp = sp; spp; spp = spp->next)
776 if (spp->type == Metadata_sortkey_relevance)
778 relevance_prepare_read(s->relevance, s->reclist);
781 reclist_sort(s->reclist, sp);
783 *total = reclist_get_num_records(s->reclist);
784 *sumhits = s->total_hits;
786 for (i = 0; i < start; i++)
787 if (!reclist_read_record(s->reclist))
794 for (i = 0; i < *num; i++)
796 struct record_cluster *r = reclist_read_record(s->reclist);
807 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
808 yaz_timing_get_real(t), yaz_timing_get_user(t),
809 yaz_timing_get_sys(t));
810 yaz_timing_destroy(&t);
815 void statistics(struct session *se, struct statistics *stat)
820 memset(stat, 0, sizeof(*stat));
821 for (cl = se->clients; cl; cl = client_next_in_session(cl))
823 if (!client_get_connection(cl))
824 stat->num_no_connection++;
825 switch (client_get_state(cl))
827 case Client_Connecting: stat->num_connecting++; break;
828 case Client_Working: stat->num_working++; break;
829 case Client_Idle: stat->num_idle++; break;
830 case Client_Failed: stat->num_failed++; break;
831 case Client_Error: stat->num_error++; break;
836 stat->num_hits = se->total_hits;
837 stat->num_records = se->total_records;
839 stat->num_clients = count;
843 // Master list of connections we're handling events to
844 static IOCHAN channel_list = 0; /* thread pr */
846 void pazpar2_add_channel(IOCHAN chan)
848 chan->next = channel_list;
852 void pazpar2_event_loop()
854 event_loop(&channel_list);
857 static struct record_metadata *record_metadata_init(
858 NMEM nmem, char *value, enum conf_metadata_type type)
860 struct record_metadata *rec_md = record_metadata_create(nmem);
861 if (type == Metadata_type_generic)
864 p = normalize7bit_generic(p, " ,/.:([");
866 rec_md->data.text.disp = nmem_strdup(nmem, p);
867 rec_md->data.text.sort = 0;
869 else if (type == Metadata_type_year || type == Metadata_type_date)
874 if (type == Metadata_type_date)
876 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
879 rec_md->data.number.min = first;
880 rec_md->data.number.max = last;
887 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
888 struct conf_service *service, WRBUF norm_wr)
892 for (n = root->children; n; n = n->next)
894 if (n->type != XML_ELEMENT_NODE)
896 if (!strcmp((const char *) n->name, "metadata"))
898 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
899 if (!strcmp(name, (const char *) type))
901 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
904 const char *norm_str;
905 pp2_relevance_token_t prt =
906 pp2_relevance_tokenize(
907 service->mergekey_pct,
908 (const char *) value);
910 wrbuf_puts(norm_wr, name);
911 wrbuf_puts(norm_wr, "=");
913 pp2_relevance_token_next(prt)))
917 if (wrbuf_len(norm_wr))
918 wrbuf_puts(norm_wr, " ");
919 wrbuf_puts(norm_wr, norm_str);
923 pp2_relevance_token_destroy(prt);
933 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
934 struct conf_service *service, NMEM nmem)
936 char *mergekey_norm = 0;
937 xmlNode *root = xmlDocGetRootElement(doc);
938 WRBUF norm_wr = wrbuf_alloc();
940 /* consider mergekey from XSL first */
941 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
944 const char *norm_str;
945 pp2_relevance_token_t prt =
946 pp2_relevance_tokenize(
947 service->mergekey_pct,
948 (const char *) mergekey);
950 while ((norm_str = pp2_relevance_token_next(prt)))
954 if (wrbuf_len(norm_wr))
955 wrbuf_puts(norm_wr, " ");
956 wrbuf_puts(norm_wr, norm_str);
959 pp2_relevance_token_destroy(prt);
964 /* no mergekey defined in XSL. Look for mergekey metadata instead */
966 for (field_id = 0; field_id < service->num_metadata; field_id++)
968 struct conf_metadata *ser_md = &service->metadata[field_id];
969 if (ser_md->mergekey != Metadata_mergekey_no)
971 int r = get_mergekey_from_doc(doc, root, ser_md->name,
973 if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
975 /* no mergekey on this one and it is required..
976 Generate unique key instead */
977 wrbuf_rewind(norm_wr);
984 /* generate unique key if none is not generated already or is empty */
985 if (wrbuf_len(norm_wr) == 0)
987 wrbuf_printf(norm_wr, "%s-%d",
988 client_get_database(cl)->database->url, record_no);
990 if (wrbuf_len(norm_wr) > 0)
991 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
992 wrbuf_destroy(norm_wr);
993 return mergekey_norm;
996 /** \brief see if metadata for pz:recordfilter exists
997 \param root xml root element of normalized record
998 \param sdb session database for client
999 \retval 0 if there is no metadata for pz:recordfilter
1000 \retval 1 if there is metadata for pz:recordfilter
1002 If there is no pz:recordfilter defined, this function returns 1
1006 static int check_record_filter(xmlNode *root, struct session_database *sdb)
1011 s = session_setting_oneval(sdb, PZ_RECORDFILTER);
1016 for (n = root->children; n; n = n->next)
1018 if (n->type != XML_ELEMENT_NODE)
1020 if (!strcmp((const char *) n->name, "metadata"))
1022 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1026 const char *eq = strchr(s, '=');
1031 if (len == strlen((const char *)type) &&
1032 !memcmp((const char *) type, s, len))
1034 xmlChar *value = xmlNodeGetContent(n);
1035 if (value && *value)
1037 if (!eq || strstr((const char *) value, eq+1))
1050 /** \brief ingest XML record
1051 \param cl client holds the result set for record
1052 \param rec record buffer (0 terminated)
1053 \param record_no record position (1, 2, ..)
1054 \returns resulting record or NULL on failure
1056 struct record *ingest_record(struct client *cl, const char *rec,
1059 struct session_database *sdb = client_get_database(cl);
1060 struct session *se = client_get_session(cl);
1061 xmlDoc *xdoc = normalize_record(sdb, se, rec);
1063 struct record *record;
1064 struct record_cluster *cluster;
1065 const char *mergekey_norm;
1068 struct conf_service *service = se->service;
1073 root = xmlDocGetRootElement(xdoc);
1075 if (!check_record_filter(root, sdb))
1077 yaz_log(YLOG_WARN, "Filtered out record no %d from %s", record_no,
1078 sdb->database->url);
1083 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
1086 yaz_log(YLOG_WARN, "Got no mergekey");
1090 record = record_create(se->nmem,
1091 service->num_metadata, service->num_sortkeys, cl,
1094 cluster = reclist_insert(se->reclist,
1096 record, (char *) mergekey_norm,
1100 /* no room for record */
1104 if (global_parameters.dump_records)
1105 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1106 sdb->database->url, record_no);
1107 relevance_newrec(se->relevance, cluster);
1109 // now parsing XML record and adding data to cluster or record metadata
1110 for (n = root->children; n; n = n->next)
1112 pp2_relevance_token_t prt;
1119 if (n->type != XML_ELEMENT_NODE)
1121 if (!strcmp((const char *) n->name, "metadata"))
1123 struct conf_metadata *ser_md = 0;
1124 struct conf_sortkey *ser_sk = 0;
1125 struct record_metadata **wheretoput = 0;
1126 struct record_metadata *rec_md = 0;
1127 int md_field_id = -1;
1128 int sk_field_id = -1;
1130 type = xmlGetProp(n, (xmlChar *) "type");
1131 value = xmlNodeListGetString(xdoc, n->children, 1);
1133 if (!type || !value || !*value)
1137 = conf_service_metadata_field_id(service, (const char *) type);
1138 if (md_field_id < 0)
1140 if (se->number_of_warnings_unknown_metadata == 0)
1143 "Ignoring unknown metadata element: %s", type);
1145 se->number_of_warnings_unknown_metadata++;
1149 ser_md = &service->metadata[md_field_id];
1151 if (ser_md->sortkey_offset >= 0){
1152 sk_field_id = ser_md->sortkey_offset;
1153 ser_sk = &service->sortkeys[sk_field_id];
1156 // non-merged metadata
1157 rec_md = record_metadata_init(se->nmem, (char *) value,
1161 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1165 wheretoput = &record->metadata[md_field_id];
1167 wheretoput = &(*wheretoput)->next;
1168 *wheretoput = rec_md;
1171 rec_md = record_metadata_init(se->nmem, (char *) value,
1173 wheretoput = &cluster->metadata[md_field_id];
1175 // and polulate with data:
1176 // assign cluster or record based on merge action
1177 if (ser_md->merge == Metadata_merge_unique)
1179 struct record_metadata *mnode;
1180 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1181 if (!strcmp((const char *) mnode->data.text.disp,
1182 rec_md->data.text.disp))
1186 rec_md->next = *wheretoput;
1187 *wheretoput = rec_md;
1190 else if (ser_md->merge == Metadata_merge_longest)
1193 || strlen(rec_md->data.text.disp)
1194 > strlen((*wheretoput)->data.text.disp))
1196 *wheretoput = rec_md;
1199 const char *sort_str = 0;
1201 ser_sk->type == Metadata_sortkey_skiparticle;
1203 if (!cluster->sortkeys[sk_field_id])
1204 cluster->sortkeys[sk_field_id] =
1205 nmem_malloc(se->nmem,
1206 sizeof(union data_types));
1208 prt = pp2_relevance_tokenize(
1210 rec_md->data.text.disp);
1212 pp2_relevance_token_next(prt);
1214 sort_str = pp2_get_sort(prt, skip_article);
1216 cluster->sortkeys[sk_field_id]->text.disp =
1217 rec_md->data.text.disp;
1220 sort_str = rec_md->data.text.disp;
1222 "Could not make sortkey. Bug #1858");
1224 cluster->sortkeys[sk_field_id]->text.sort =
1225 nmem_strdup(se->nmem, sort_str);
1227 yaz_log(YLOG_LOG, "text disp=%s",
1228 cluster->sortkeys[sk_field_id]->text.disp);
1229 yaz_log(YLOG_LOG, "text sort=%s",
1230 cluster->sortkeys[sk_field_id]->text.sort);
1232 pp2_relevance_token_destroy(prt);
1236 else if (ser_md->merge == Metadata_merge_all)
1238 rec_md->next = *wheretoput;
1239 *wheretoput = rec_md;
1241 else if (ser_md->merge == Metadata_merge_range)
1245 *wheretoput = rec_md;
1247 cluster->sortkeys[sk_field_id]
1252 int this_min = rec_md->data.number.min;
1253 int this_max = rec_md->data.number.max;
1254 if (this_min < (*wheretoput)->data.number.min)
1255 (*wheretoput)->data.number.min = this_min;
1256 if (this_max > (*wheretoput)->data.number.max)
1257 (*wheretoput)->data.number.max = this_max;
1262 // ranking of _all_ fields enabled ...
1264 relevance_countwords(se->relevance, cluster,
1265 (char *) value, ser_md->rank);
1267 // construct facets ...
1268 if (ser_md->termlist)
1270 if (ser_md->type == Metadata_type_year)
1273 sprintf(year, "%d", rec_md->data.number.max);
1274 add_facet(se, (char *) type, year);
1275 if (rec_md->data.number.max != rec_md->data.number.min)
1277 sprintf(year, "%d", rec_md->data.number.min);
1278 add_facet(se, (char *) type, year);
1282 add_facet(se, (char *) type, (char *) value);
1292 if (se->number_of_warnings_unknown_elements == 0)
1294 "Unexpected element in internal record: %s", n->name);
1295 se->number_of_warnings_unknown_elements++;
1305 relevance_donerecord(se->relevance, cluster);
1306 se->total_records++;
1316 * c-file-style: "Stroustrup"
1317 * indent-tabs-mode: nil
1319 * vim: shiftwidth=4 tabstop=8 expandtab