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>
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 =
81 30, // operations timeout
85 60, // session timeout
90 180, // Z39.50 session timeout
94 static void log_xml_doc(xmlDoc *doc)
96 FILE *lf = yaz_log_file();
99 #if LIBXML_VERSION >= 20600
100 xmlDocDumpFormatMemory(doc, &result, &len, 1);
102 xmlDocDumpMemory(doc, &result, &len);
106 fwrite(result, 1, len, lf);
112 // Recursively traverse query structure to extract terms.
113 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
125 pull_terms(nmem, n->u.p[0], termlist, num);
126 pull_terms(nmem, n->u.p[1], termlist, num);
129 nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
130 for (i = 0; i < numwords; i++)
131 termlist[(*num)++] = words[i];
140 static void add_facet(struct session *s, const char *type, const char *value)
146 for (i = 0; i < s->num_termlists; i++)
147 if (!strcmp(s->termlists[i].name, type))
149 if (i == s->num_termlists)
151 if (i == SESSION_MAX_TERMLISTS)
153 yaz_log(YLOG_FATAL, "Too many termlists");
157 s->termlists[i].name = nmem_strdup(s->nmem, type);
158 s->termlists[i].termlist
159 = termlist_create(s->nmem, s->expected_maxrecs,
160 TERMLIST_HIGH_SCORE);
161 s->num_termlists = i + 1;
163 termlist_insert(s->termlists[i].termlist, value);
166 xmlDoc *record_to_xml(struct session_database *sdb, const char *rec)
168 struct database *db = sdb->database;
171 rdoc = xmlParseMemory(rec, strlen(rec));
175 yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
180 if (global_parameters.dump_records)
182 yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
189 #define MAX_XSLT_ARGS 16
191 // Add static values from session database settings if applicable
192 static void insert_settings_parameters(struct session_database *sdb,
193 struct session *se, char **parms)
195 struct conf_service *service = se->service;
200 for (i = 0; i < service->num_metadata; i++)
202 struct conf_metadata *md = &service->metadata[i];
205 if (md->setting == Metadata_setting_parameter &&
206 (setting = settings_offset(service, md->name)) > 0)
208 const char *val = session_setting_oneval(sdb, setting);
209 if (val && nparms < MAX_XSLT_ARGS)
212 int len = strlen(val);
213 buf = nmem_malloc(se->nmem, len + 3);
215 strcpy(buf + 1, val);
218 parms[offset++] = md->name;
219 parms[offset++] = buf;
227 // Add static values from session database settings if applicable
228 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
229 struct conf_service *service)
233 for (i = 0; i < service->num_metadata; i++)
235 struct conf_metadata *md = &service->metadata[i];
238 if (md->setting == Metadata_setting_postproc &&
239 (offset = settings_offset(service, md->name)) > 0)
241 const char *val = session_setting_oneval(sdb, offset);
244 xmlNode *r = xmlDocGetRootElement(doc);
245 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
247 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
253 xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
256 struct database_retrievalmap *m;
257 xmlDoc *rdoc = record_to_xml(sdb, rec);
260 for (m = sdb->map; m; m = m->next)
266 char *parms[MAX_XSLT_ARGS*2+1];
268 insert_settings_parameters(sdb, se, parms);
270 new = xsltApplyStylesheet(m->stylesheet, rdoc, (const char **) parms);
271 root= xmlDocGetRootElement(new);
272 if (!new || !root || !(root->children))
274 yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
286 insert_settings_values(sdb, rdoc, se->service);
288 if (global_parameters.dump_records)
290 yaz_log(YLOG_LOG, "Normalized record from %s",
298 // Retrieve first defined value for 'name' for given database.
299 // Will be extended to take into account user associated with session
300 const char *session_setting_oneval(struct session_database *db, int offset)
302 if (!db->settings[offset])
304 return db->settings[offset]->value;
307 // Prepare XSLT stylesheets for record normalization
308 // Structures are allocated on the session_wide nmem to avoid having
309 // to recompute this for every search. This would lead
310 // to leaking if a single session was to repeatedly change the PZ_XSLT
311 // setting. However, this is not a realistic use scenario.
312 static int prepare_map(struct session *se, struct session_database *sdb)
318 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
321 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
324 struct database_retrievalmap **m = &sdb->map;
326 char auto_stylesheet[256];
328 if (!strcmp(s, "auto"))
330 const char *request_syntax = session_setting_oneval(
331 sdb, PZ_REQUESTSYNTAX);
335 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
336 "%s.xsl", request_syntax);
337 for (cp = auto_stylesheet; *cp; cp++)
339 /* deliberately only consider ASCII */
340 if (*cp > 32 && *cp < 127)
347 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
350 nmem_strsplit(se->session_nmem, ",", s, &stylesheets, &num);
351 for (i = 0; i < num; i++)
353 (*m) = nmem_malloc(se->session_nmem, sizeof(**m));
355 if (!((*m)->stylesheet = conf_load_stylesheet(stylesheets[i])))
357 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Unable to load stylesheet: %s",
365 yaz_log(YLOG_WARN, "No Normalization stylesheet for target %s",
370 // This analyzes settings and recomputes any supporting data structures
372 static int prepare_session_database(struct session *se,
373 struct session_database *sdb)
378 "No settings associated with %s", sdb->database->url);
381 if (sdb->settings[PZ_XSLT] && !sdb->map)
383 if (prepare_map(se, sdb) < 0)
389 // called if watch should be removed because http_channel is to be destroyed
390 static void session_watch_cancel(void *data, struct http_channel *c,
393 struct session_watchentry *ent = data;
400 // set watch. Returns 0=OK, -1 if watch is already set
401 int session_set_watch(struct session *s, int what,
402 session_watchfun fun, void *data,
403 struct http_channel *chan)
405 if (s->watchlist[what].fun)
407 s->watchlist[what].fun = fun;
408 s->watchlist[what].data = data;
409 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
410 session_watch_cancel);
414 void session_alert_watch(struct session *s, int what)
416 if (s->watchlist[what].fun)
418 /* our watch is no longer associated with http_channel */
420 session_watchfun fun;
422 http_remove_observer(s->watchlist[what].obs);
423 fun = s->watchlist[what].fun;
424 data = s->watchlist[what].data;
426 /* reset watch before fun is invoked - in case fun wants to set
428 s->watchlist[what].fun = 0;
429 s->watchlist[what].data = 0;
430 s->watchlist[what].obs = 0;
436 //callback for grep_databases
437 static void select_targets_callback(void *context, struct session_database *db)
439 struct session *se = (struct session*) context;
440 struct client *cl = client_create();
441 client_set_database(cl, db);
442 client_set_session(cl, se);
445 // Associates a set of clients with a session;
446 // Note: Session-databases represent databases with per-session
448 int select_targets(struct session *se, struct database_criterion *crit)
451 client_destroy(se->clients);
453 return session_grep_databases(se, crit, select_targets_callback);
456 int session_active_clients(struct session *s)
461 for (c = s->clients; c; c = client_next_in_session(c))
462 if (client_is_active(c))
468 // parses crit1=val1,crit2=val2|val3,...
469 static struct database_criterion *parse_filter(NMEM m, const char *buf)
471 struct database_criterion *res = 0;
478 nmem_strsplit(m, ",", buf, &values, &num);
479 for (i = 0; i < num; i++)
484 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
485 char *eq = strchr(values[i], '=');
488 yaz_log(YLOG_WARN, "Missing equal-sign in filter");
492 new->name = values[i];
493 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
495 for (subi = 0; subi < subnum; subi++)
497 struct database_criterion_value *newv
498 = nmem_malloc(m, sizeof(*newv));
499 newv->value = subvalues[subi];
500 newv->next = new->values;
509 enum pazpar2_error_code search(struct session *se,
510 char *query, char *filter,
511 const char **addinfo)
513 int live_channels = 0;
517 struct database_criterion *criteria;
519 yaz_log(YLOG_DEBUG, "Search");
522 nmem_reset(se->nmem);
524 se->total_records = se->total_hits = se->total_merged = 0;
526 se->num_termlists = 0;
527 criteria = parse_filter(se->nmem, filter);
528 live_channels = select_targets(se, criteria);
531 int maxrecs = live_channels * global_parameters.toget; // This is buggy!!!
532 se->reclist = reclist_create(se->nmem, maxrecs);
533 se->expected_maxrecs = maxrecs;
536 return PAZPAR2_NO_TARGETS;
538 for (cl = se->clients; cl; cl = client_next_in_session(cl))
540 if (prepare_session_database(se, client_get_database(cl)) < 0)
542 *addinfo = client_get_database(cl)->database->url;
543 return PAZPAR2_CONFIG_TARGET;
545 // Parse query for target
546 if (client_parse_query(cl, query) < 0)
551 if (client_prep_connection(cl))
552 client_start_search(cl);
556 // If no queries could be mapped, we signal an error
560 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
562 return PAZPAR2_NO_ERROR;
565 // Creates a new session_database object for a database
566 static void session_init_databases_fun(void *context, struct database *db)
568 struct session *se = (struct session *) context;
569 struct conf_service *service = se->service;
570 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
571 int num = settings_num(service);
578 = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
579 memset(new->settings, 0, sizeof(struct settings*) * num);
583 for (i = 0; i < num; i++)
584 new->settings[i] = db->settings[i];
586 new->next = se->databases;
590 // Doesn't free memory associated with sdb -- nmem takes care of that
591 static void session_database_destroy(struct session_database *sdb)
593 struct database_retrievalmap *m;
595 for (m = sdb->map; m; m = m->next)
596 xsltFreeStylesheet(m->stylesheet);
599 // Initialize session_database list -- this represents this session's view
600 // of the database list -- subject to modification by the settings ws command
601 void session_init_databases(struct session *se)
604 predef_grep_databases(se, se->service, 0, session_init_databases_fun);
607 // Probably session_init_databases_fun should be refactored instead of
609 static struct session_database *load_session_database(struct session *se,
612 struct database *db = find_database(id, 0, se->service);
614 session_init_databases_fun((void*) se, db);
615 // New sdb is head of se->databases list
616 return se->databases;
619 // Find an existing session database. If not found, load it
620 static struct session_database *find_session_database(struct session *se,
623 struct session_database *sdb;
625 for (sdb = se->databases; sdb; sdb = sdb->next)
626 if (!strcmp(sdb->database->url, id))
628 return load_session_database(se, id);
631 // Apply a session override to a database
632 void session_apply_setting(struct session *se, char *dbname, char *setting,
635 struct session_database *sdb = find_session_database(se, dbname);
636 struct conf_service *service = se->service;
637 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
638 int offset = settings_offset_cprefix(service, setting);
642 yaz_log(YLOG_WARN, "Unknown setting %s", setting);
645 // Jakub: This breaks the filter setting.
646 /*if (offset == PZ_ID)
648 yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
652 new->target = dbname;
655 new->next = sdb->settings[offset];
656 sdb->settings[offset] = new;
658 // Force later recompute of settings-driven data structures
659 // (happens when a search starts and client connections are prepared)
665 struct database_retrievalmap *m;
666 // We don't worry about the map structure -- it's in nmem
667 for (m = sdb->map; m; m = m->next)
668 xsltFreeStylesheet(m->stylesheet);
675 void destroy_session(struct session *s)
677 struct session_database *sdb;
680 client_destroy(s->clients);
681 for (sdb = s->databases; sdb; sdb = sdb->next)
682 session_database_destroy(sdb);
683 nmem_destroy(s->nmem);
684 wrbuf_destroy(s->wrbuf);
687 struct session *new_session(NMEM nmem, struct conf_service *service)
690 struct session *session = nmem_malloc(nmem, sizeof(*session));
692 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
694 session->service = service;
695 session->relevance = 0;
696 session->total_hits = 0;
697 session->total_records = 0;
698 session->number_of_warnings_unknown_elements = 0;
699 session->number_of_warnings_unknown_metadata = 0;
700 session->num_termlists = 0;
701 session->reclist = 0;
702 session->clients = 0;
703 session->expected_maxrecs = 0;
704 session->session_nmem = nmem;
705 session->nmem = nmem_create();
706 session->wrbuf = wrbuf_alloc();
707 session->databases = 0;
708 for (i = 0; i <= SESSION_WATCH_MAX; i++)
710 session->watchlist[i].data = 0;
711 session->watchlist[i].fun = 0;
716 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
718 struct hitsbytarget *res = 0;
722 for (cl = se->clients; cl; cl = client_next_in_session(cl))
725 res = nmem_malloc(nmem, sizeof(*res) * sz);
727 for (cl = se->clients; cl; cl = client_next_in_session(cl))
729 const char *name = session_setting_oneval(client_get_database(cl),
732 res[*count].id = client_get_database(cl)->database->url;
733 res[*count].name = *name ? name : "Unknown";
734 res[*count].hits = client_get_hits(cl);
735 res[*count].records = client_get_num_records(cl);
736 res[*count].diagnostic = client_get_diagnostic(cl);
737 res[*count].state = client_get_state_str(cl);
738 res[*count].connected = client_get_connection(cl) ? 1 : 0;
744 struct termlist_score **termlist(struct session *s, const char *name, int *num)
748 for (i = 0; i < s->num_termlists; i++)
749 if (!strcmp((const char *) s->termlists[i].name, name))
750 return termlist_highscore(s->termlists[i].termlist, num);
754 #ifdef MISSING_HEADERS
755 void report_nmem_stats(void)
757 size_t in_use, is_free;
759 nmem_get_memory_in_use(&in_use);
760 nmem_get_memory_free(&is_free);
762 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
763 (long) in_use, (long) is_free);
767 struct record_cluster *show_single(struct session *s, const char *id,
768 struct record_cluster **prev_r,
769 struct record_cluster **next_r)
771 struct record_cluster *r;
773 reclist_rewind(s->reclist);
776 while ((r = reclist_read_record(s->reclist)))
778 if (!strcmp(r->recid, id))
780 *next_r = reclist_read_record(s->reclist);
788 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
789 int start, int *num, int *total, int *sumhits,
792 struct record_cluster **recs = nmem_malloc(nmem_show, *num
793 * sizeof(struct record_cluster *));
794 struct reclist_sortparms *spp;
797 yaz_timing_t t = yaz_timing_create();
809 for (spp = sp; spp; spp = spp->next)
810 if (spp->type == Metadata_sortkey_relevance)
812 relevance_prepare_read(s->relevance, s->reclist);
815 reclist_sort(s->reclist, sp);
817 *total = s->reclist->num_records;
818 *sumhits = s->total_hits;
820 for (i = 0; i < start; i++)
821 if (!reclist_read_record(s->reclist))
828 for (i = 0; i < *num; i++)
830 struct record_cluster *r = reclist_read_record(s->reclist);
841 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
842 yaz_timing_get_real(t), yaz_timing_get_user(t),
843 yaz_timing_get_sys(t));
844 yaz_timing_destroy(&t);
849 void statistics(struct session *se, struct statistics *stat)
854 memset(stat, 0, sizeof(*stat));
855 for (cl = se->clients; cl; cl = client_next_in_session(cl))
857 if (!client_get_connection(cl))
858 stat->num_no_connection++;
859 switch (client_get_state(cl))
861 case Client_Connecting: stat->num_connecting++; break;
862 case Client_Working: stat->num_working++; break;
863 case Client_Idle: stat->num_idle++; break;
864 case Client_Failed: stat->num_failed++; break;
865 case Client_Error: stat->num_error++; break;
870 stat->num_hits = se->total_hits;
871 stat->num_records = se->total_records;
873 stat->num_clients = count;
876 int start_http_listener(struct conf_config *conf,
877 const char *listener_override,
878 const char *proxy_override)
880 struct conf_server *ser;
881 for (ser = conf->servers; ser; ser = ser->next)
885 if (listener_override)
887 strcpy(hp, listener_override);
888 listener_override = 0; /* only first server is overriden */
892 strcpy(hp, ser->host ? ser->host : "");
897 sprintf(hp + strlen(hp), "%d", ser->port);
900 if (http_init(hp, ser))
905 strcpy(hp, proxy_override);
906 else if (ser->proxy_host || ser->proxy_port)
908 strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
913 sprintf(hp + strlen(hp), "%d", ser->proxy_port);
917 http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
922 // Master list of connections we're handling events to
923 static IOCHAN channel_list = 0;
924 void pazpar2_add_channel(IOCHAN chan)
926 chan->next = channel_list;
930 void pazpar2_event_loop()
932 event_loop(&channel_list);
935 static struct record_metadata *record_metadata_init(
936 NMEM nmem, char *value, enum conf_metadata_type type)
938 struct record_metadata *rec_md = record_metadata_create(nmem);
939 if (type == Metadata_type_generic)
942 p = normalize7bit_generic(p, " ,/.:([");
944 rec_md->data.text.disp = nmem_strdup(nmem, p);
945 rec_md->data.text.sort = 0;
947 else if (type == Metadata_type_year || type == Metadata_type_date)
952 if (type == Metadata_type_date)
954 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
957 rec_md->data.number.min = first;
958 rec_md->data.number.max = last;
965 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
966 struct conf_service *service, NMEM nmem)
968 char *mergekey_norm = 0;
969 xmlNode *root = xmlDocGetRootElement(doc);
970 WRBUF norm_wr = wrbuf_alloc();
973 /* create mergekey based on mergekey attribute from XSL (if any) */
974 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
977 const char *norm_str;
978 pp2_relevance_token_t prt =
979 pp2_relevance_tokenize(
980 service->mergekey_pct,
981 (const char *) mergekey);
983 while ((norm_str = pp2_relevance_token_next(prt)))
987 if (wrbuf_len(norm_wr))
988 wrbuf_puts(norm_wr, " ");
989 wrbuf_puts(norm_wr, norm_str);
992 pp2_relevance_token_destroy(prt);
995 /* append (if any) mergekey=yes metadata values */
996 for (n = root->children; n; n = n->next)
998 if (n->type != XML_ELEMENT_NODE)
1000 if (!strcmp((const char *) n->name, "metadata"))
1002 struct conf_metadata *ser_md = 0;
1003 int md_field_id = -1;
1005 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1011 = conf_service_metadata_field_id(service,
1012 (const char *) type);
1013 if (md_field_id >= 0)
1015 ser_md = &service->metadata[md_field_id];
1016 if (ser_md->mergekey == Metadata_mergekey_yes)
1018 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
1021 const char *norm_str;
1022 pp2_relevance_token_t prt =
1023 pp2_relevance_tokenize(
1024 service->mergekey_pct,
1025 (const char *) value);
1027 while ((norm_str = pp2_relevance_token_next(prt)))
1031 if (wrbuf_len(norm_wr))
1032 wrbuf_puts(norm_wr, " ");
1033 wrbuf_puts(norm_wr, norm_str);
1037 pp2_relevance_token_destroy(prt);
1045 /* generate unique key if none is not generated already or is empty */
1046 if (wrbuf_len(norm_wr) == 0)
1048 wrbuf_printf(norm_wr, "%s-%d",
1049 client_get_database(cl)->database->url, record_no);
1051 if (wrbuf_len(norm_wr) > 0)
1052 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1053 wrbuf_destroy(norm_wr);
1054 return mergekey_norm;
1059 /** \brief ingest XML record
1060 \param cl client holds the result set for record
1061 \param rec record buffer (0 terminated)
1062 \param record_no record position (1, 2, ..)
1063 \returns resulting record or NULL on failure
1065 struct record *ingest_record(struct client *cl, const char *rec,
1068 xmlDoc *xdoc = normalize_record(client_get_database(cl),
1069 client_get_session(cl), rec);
1071 struct record *record;
1072 struct record_cluster *cluster;
1073 struct session *se = client_get_session(cl);
1074 const char *mergekey_norm;
1077 struct conf_service *service = se->service;
1082 root = xmlDocGetRootElement(xdoc);
1084 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
1087 yaz_log(YLOG_WARN, "Got no mergekey");
1091 record = record_create(se->nmem,
1092 service->num_metadata, service->num_sortkeys, cl,
1095 cluster = reclist_insert(se->reclist,
1097 record, (char *) mergekey_norm,
1099 if (global_parameters.dump_records)
1100 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1101 client_get_database(cl)->database->url, record_no);
1104 /* no room for record */
1108 relevance_newrec(se->relevance, cluster);
1110 // now parsing XML record and adding data to cluster or record metadata
1111 for (n = root->children; n; n = n->next)
1113 pp2_relevance_token_t prt;
1120 if (n->type != XML_ELEMENT_NODE)
1122 if (!strcmp((const char *) n->name, "metadata"))
1124 struct conf_metadata *ser_md = 0;
1125 struct conf_sortkey *ser_sk = 0;
1126 struct record_metadata **wheretoput = 0;
1127 struct record_metadata *rec_md = 0;
1128 int md_field_id = -1;
1129 int sk_field_id = -1;
1131 type = xmlGetProp(n, (xmlChar *) "type");
1132 value = xmlNodeListGetString(xdoc, n->children, 1);
1134 if (!type || !value || !*value)
1138 = conf_service_metadata_field_id(service, (const char *) type);
1139 if (md_field_id < 0)
1141 if (se->number_of_warnings_unknown_metadata == 0)
1144 "Ignoring unknown metadata element: %s", type);
1146 se->number_of_warnings_unknown_metadata++;
1150 ser_md = &service->metadata[md_field_id];
1152 if (ser_md->sortkey_offset >= 0){
1153 sk_field_id = ser_md->sortkey_offset;
1154 ser_sk = &service->sortkeys[sk_field_id];
1157 // non-merged metadata
1158 rec_md = record_metadata_init(se->nmem, (char *) value,
1162 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1166 wheretoput = &record->metadata[md_field_id];
1168 wheretoput = &(*wheretoput)->next;
1169 *wheretoput = rec_md;
1172 rec_md = record_metadata_init(se->nmem, (char *) value,
1174 wheretoput = &cluster->metadata[md_field_id];
1176 // and polulate with data:
1177 // assign cluster or record based on merge action
1178 if (ser_md->merge == Metadata_merge_unique)
1180 struct record_metadata *mnode;
1181 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1182 if (!strcmp((const char *) mnode->data.text.disp,
1183 rec_md->data.text.disp))
1187 rec_md->next = *wheretoput;
1188 *wheretoput = rec_md;
1191 else if (ser_md->merge == Metadata_merge_longest)
1194 || strlen(rec_md->data.text.disp)
1195 > strlen((*wheretoput)->data.text.disp))
1197 *wheretoput = rec_md;
1200 const char *sort_str = 0;
1202 ser_sk->type == Metadata_sortkey_skiparticle;
1204 if (!cluster->sortkeys[sk_field_id])
1205 cluster->sortkeys[sk_field_id] =
1206 nmem_malloc(se->nmem,
1207 sizeof(union data_types));
1209 prt = pp2_relevance_tokenize(
1211 rec_md->data.text.disp);
1213 pp2_relevance_token_next(prt);
1215 sort_str = pp2_get_sort(prt, skip_article);
1217 cluster->sortkeys[sk_field_id]->text.disp =
1218 rec_md->data.text.disp;
1221 sort_str = rec_md->data.text.disp;
1223 "Could not make sortkey. Bug #1858");
1225 cluster->sortkeys[sk_field_id]->text.sort =
1226 nmem_strdup(se->nmem, sort_str);
1228 yaz_log(YLOG_LOG, "text disp=%s",
1229 cluster->sortkeys[sk_field_id]->text.disp);
1230 yaz_log(YLOG_LOG, "text sort=%s",
1231 cluster->sortkeys[sk_field_id]->text.sort);
1233 pp2_relevance_token_destroy(prt);
1237 else if (ser_md->merge == Metadata_merge_all)
1239 rec_md->next = *wheretoput;
1240 *wheretoput = rec_md;
1242 else if (ser_md->merge == Metadata_merge_range)
1246 *wheretoput = rec_md;
1248 cluster->sortkeys[sk_field_id]
1253 int this_min = rec_md->data.number.min;
1254 int this_max = rec_md->data.number.max;
1255 if (this_min < (*wheretoput)->data.number.min)
1256 (*wheretoput)->data.number.min = this_min;
1257 if (this_max > (*wheretoput)->data.number.max)
1258 (*wheretoput)->data.number.max = this_max;
1263 // ranking of _all_ fields enabled ...
1265 relevance_countwords(se->relevance, cluster,
1266 (char *) value, ser_md->rank);
1268 // construct facets ...
1269 if (ser_md->termlist)
1271 if (ser_md->type == Metadata_type_year)
1274 sprintf(year, "%d", rec_md->data.number.max);
1275 add_facet(se, (char *) type, year);
1276 if (rec_md->data.number.max != rec_md->data.number.min)
1278 sprintf(year, "%d", rec_md->data.number.min);
1279 add_facet(se, (char *) type, year);
1283 add_facet(se, (char *) type, (char *) value);
1293 if (se->number_of_warnings_unknown_elements == 0)
1295 "Unexpected element in internal record: %s", n->name);
1296 se->number_of_warnings_unknown_elements++;
1306 relevance_donerecord(se->relevance, cluster);
1307 se->total_records++;
1317 * c-file-style: "Stroustrup"
1318 * indent-tabs-mode: nil
1320 * vim: shiftwidth=4 tabstop=8 expandtab