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 =
84 30, // operations timeout
88 60, // session timeout
93 180, // Z39.50 session timeout
97 static void log_xml_doc(xmlDoc *doc)
99 FILE *lf = yaz_log_file();
102 #if LIBXML_VERSION >= 20600
103 xmlDocDumpFormatMemory(doc, &result, &len, 1);
105 xmlDocDumpMemory(doc, &result, &len);
109 fwrite(result, 1, len, lf);
115 // Recursively traverse query structure to extract terms.
116 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
128 pull_terms(nmem, n->u.p[0], termlist, num);
129 pull_terms(nmem, n->u.p[1], termlist, num);
132 nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
133 for (i = 0; i < numwords; i++)
134 termlist[(*num)++] = words[i];
143 static void add_facet(struct session *s, const char *type, const char *value)
149 for (i = 0; i < s->num_termlists; i++)
150 if (!strcmp(s->termlists[i].name, type))
152 if (i == s->num_termlists)
154 if (i == SESSION_MAX_TERMLISTS)
156 yaz_log(YLOG_FATAL, "Too many termlists");
160 s->termlists[i].name = nmem_strdup(s->nmem, type);
161 s->termlists[i].termlist
162 = termlist_create(s->nmem, s->expected_maxrecs,
163 TERMLIST_HIGH_SCORE);
164 s->num_termlists = i + 1;
166 termlist_insert(s->termlists[i].termlist, value);
169 xmlDoc *record_to_xml(struct session_database *sdb, const char *rec)
171 struct database *db = sdb->database;
174 rdoc = xmlParseMemory(rec, strlen(rec));
178 yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
183 if (global_parameters.dump_records)
185 yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
192 #define MAX_XSLT_ARGS 16
194 // Add static values from session database settings if applicable
195 static void insert_settings_parameters(struct session_database *sdb,
196 struct session *se, char **parms)
198 struct conf_service *service = se->service;
203 for (i = 0; i < service->num_metadata; i++)
205 struct conf_metadata *md = &service->metadata[i];
208 if (md->setting == Metadata_setting_parameter &&
209 (setting = settings_offset(service, md->name)) > 0)
211 const char *val = session_setting_oneval(sdb, setting);
212 if (val && nparms < MAX_XSLT_ARGS)
215 int len = strlen(val);
216 buf = nmem_malloc(se->nmem, len + 3);
218 strcpy(buf + 1, val);
221 parms[offset++] = md->name;
222 parms[offset++] = buf;
230 // Add static values from session database settings if applicable
231 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
232 struct conf_service *service)
236 for (i = 0; i < service->num_metadata; i++)
238 struct conf_metadata *md = &service->metadata[i];
241 if (md->setting == Metadata_setting_postproc &&
242 (offset = settings_offset(service, md->name)) > 0)
244 const char *val = session_setting_oneval(sdb, offset);
247 xmlNode *r = xmlDocGetRootElement(doc);
248 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
250 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
256 xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
259 struct database_retrievalmap *m;
260 xmlDoc *rdoc = record_to_xml(sdb, rec);
263 for (m = sdb->map; m; m = m->next)
269 char *parms[MAX_XSLT_ARGS*2+1];
271 insert_settings_parameters(sdb, se, parms);
273 new = xsltApplyStylesheet(m->stylesheet, rdoc, (const char **) parms);
274 root= xmlDocGetRootElement(new);
275 if (!new || !root || !(root->children))
277 yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
289 insert_settings_values(sdb, rdoc, se->service);
291 if (global_parameters.dump_records)
293 yaz_log(YLOG_LOG, "Normalized record from %s",
301 // Retrieve first defined value for 'name' for given database.
302 // Will be extended to take into account user associated with session
303 const char *session_setting_oneval(struct session_database *db, int offset)
305 if (!db->settings[offset])
307 return db->settings[offset]->value;
310 // Prepare XSLT stylesheets for record normalization
311 // Structures are allocated on the session_wide nmem to avoid having
312 // to recompute this for every search. This would lead
313 // to leaking if a single session was to repeatedly change the PZ_XSLT
314 // setting. However, this is not a realistic use scenario.
315 static int prepare_map(struct session *se, struct session_database *sdb)
321 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
324 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
327 struct database_retrievalmap **m = &sdb->map;
329 char auto_stylesheet[256];
331 if (!strcmp(s, "auto"))
333 const char *request_syntax = session_setting_oneval(
334 sdb, PZ_REQUESTSYNTAX);
338 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
339 "%s.xsl", request_syntax);
340 for (cp = auto_stylesheet; *cp; cp++)
342 /* deliberately only consider ASCII */
343 if (*cp > 32 && *cp < 127)
350 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
353 nmem_strsplit(se->session_nmem, ",", s, &stylesheets, &num);
354 for (i = 0; i < num; i++)
356 (*m) = nmem_malloc(se->session_nmem, sizeof(**m));
358 if (!((*m)->stylesheet = conf_load_stylesheet(stylesheets[i])))
360 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Unable to load stylesheet: %s",
368 yaz_log(YLOG_WARN, "No Normalization stylesheet for target %s",
373 // This analyzes settings and recomputes any supporting data structures
375 static int prepare_session_database(struct session *se,
376 struct session_database *sdb)
381 "No settings associated with %s", sdb->database->url);
384 if (sdb->settings[PZ_XSLT] && !sdb->map)
386 if (prepare_map(se, sdb) < 0)
392 // called if watch should be removed because http_channel is to be destroyed
393 static void session_watch_cancel(void *data, struct http_channel *c,
396 struct session_watchentry *ent = data;
403 // set watch. Returns 0=OK, -1 if watch is already set
404 int session_set_watch(struct session *s, int what,
405 session_watchfun fun, void *data,
406 struct http_channel *chan)
408 if (s->watchlist[what].fun)
410 s->watchlist[what].fun = fun;
411 s->watchlist[what].data = data;
412 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
413 session_watch_cancel);
417 void session_alert_watch(struct session *s, int what)
419 if (s->watchlist[what].fun)
421 /* our watch is no longer associated with http_channel */
423 session_watchfun fun;
425 http_remove_observer(s->watchlist[what].obs);
426 fun = s->watchlist[what].fun;
427 data = s->watchlist[what].data;
429 /* reset watch before fun is invoked - in case fun wants to set
431 s->watchlist[what].fun = 0;
432 s->watchlist[what].data = 0;
433 s->watchlist[what].obs = 0;
439 //callback for grep_databases
440 static void select_targets_callback(void *context, struct session_database *db)
442 struct session *se = (struct session*) context;
443 struct client *cl = client_create();
444 client_set_database(cl, db);
445 client_set_session(cl, se);
448 // Associates a set of clients with a session;
449 // Note: Session-databases represent databases with per-session
451 int select_targets(struct session *se, struct database_criterion *crit)
454 client_destroy(se->clients);
456 return session_grep_databases(se, crit, select_targets_callback);
459 int session_active_clients(struct session *s)
464 for (c = s->clients; c; c = client_next_in_session(c))
465 if (client_is_active(c))
471 // parses crit1=val1,crit2=val2|val3,...
472 static struct database_criterion *parse_filter(NMEM m, const char *buf)
474 struct database_criterion *res = 0;
481 nmem_strsplit(m, ",", buf, &values, &num);
482 for (i = 0; i < num; i++)
487 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
488 char *eq = strchr(values[i], '=');
491 yaz_log(YLOG_WARN, "Missing equal-sign in filter");
495 new->name = values[i];
496 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
498 for (subi = 0; subi < subnum; subi++)
500 struct database_criterion_value *newv
501 = nmem_malloc(m, sizeof(*newv));
502 newv->value = subvalues[subi];
503 newv->next = new->values;
512 enum pazpar2_error_code search(struct session *se,
513 char *query, char *filter,
514 const char **addinfo)
516 int live_channels = 0;
520 struct database_criterion *criteria;
522 yaz_log(YLOG_DEBUG, "Search");
525 nmem_reset(se->nmem);
527 se->total_records = se->total_hits = se->total_merged = 0;
529 se->num_termlists = 0;
530 criteria = parse_filter(se->nmem, filter);
531 live_channels = select_targets(se, criteria);
534 int maxrecs = live_channels * global_parameters.toget; // This is buggy!!!
535 se->reclist = reclist_create(se->nmem, maxrecs);
536 se->expected_maxrecs = maxrecs;
539 return PAZPAR2_NO_TARGETS;
541 for (cl = se->clients; cl; cl = client_next_in_session(cl))
543 if (prepare_session_database(se, client_get_database(cl)) < 0)
545 *addinfo = client_get_database(cl)->database->url;
546 return PAZPAR2_CONFIG_TARGET;
548 // Parse query for target
549 if (client_parse_query(cl, query) < 0)
554 if (client_prep_connection(cl))
555 client_start_search(cl);
559 // If no queries could be mapped, we signal an error
563 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
565 return PAZPAR2_NO_ERROR;
568 // Creates a new session_database object for a database
569 static void session_init_databases_fun(void *context, struct database *db)
571 struct session *se = (struct session *) context;
572 struct conf_service *service = se->service;
573 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
574 int num = settings_num(service);
581 = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
582 memset(new->settings, 0, sizeof(struct settings*) * num);
586 for (i = 0; i < num; i++)
587 new->settings[i] = db->settings[i];
589 new->next = se->databases;
593 // Doesn't free memory associated with sdb -- nmem takes care of that
594 static void session_database_destroy(struct session_database *sdb)
596 struct database_retrievalmap *m;
598 for (m = sdb->map; m; m = m->next)
599 xsltFreeStylesheet(m->stylesheet);
602 // Initialize session_database list -- this represents this session's view
603 // of the database list -- subject to modification by the settings ws command
604 void session_init_databases(struct session *se)
607 predef_grep_databases(se, se->service, 0, session_init_databases_fun);
610 // Probably session_init_databases_fun should be refactored instead of
612 static struct session_database *load_session_database(struct session *se,
615 struct database *db = find_database(id, 0, se->service);
617 session_init_databases_fun((void*) se, db);
618 // New sdb is head of se->databases list
619 return se->databases;
622 // Find an existing session database. If not found, load it
623 static struct session_database *find_session_database(struct session *se,
626 struct session_database *sdb;
628 for (sdb = se->databases; sdb; sdb = sdb->next)
629 if (!strcmp(sdb->database->url, id))
631 return load_session_database(se, id);
634 // Apply a session override to a database
635 void session_apply_setting(struct session *se, char *dbname, char *setting,
638 struct session_database *sdb = find_session_database(se, dbname);
639 struct conf_service *service = se->service;
640 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
641 int offset = settings_offset_cprefix(service, setting);
645 yaz_log(YLOG_WARN, "Unknown setting %s", setting);
648 // Jakub: This breaks the filter setting.
649 /*if (offset == PZ_ID)
651 yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
655 new->target = dbname;
658 new->next = sdb->settings[offset];
659 sdb->settings[offset] = new;
661 // Force later recompute of settings-driven data structures
662 // (happens when a search starts and client connections are prepared)
668 struct database_retrievalmap *m;
669 // We don't worry about the map structure -- it's in nmem
670 for (m = sdb->map; m; m = m->next)
671 xsltFreeStylesheet(m->stylesheet);
678 void destroy_session(struct session *s)
680 struct session_database *sdb;
683 client_destroy(s->clients);
684 for (sdb = s->databases; sdb; sdb = sdb->next)
685 session_database_destroy(sdb);
686 nmem_destroy(s->nmem);
687 wrbuf_destroy(s->wrbuf);
690 struct session *new_session(NMEM nmem, struct conf_service *service)
693 struct session *session = nmem_malloc(nmem, sizeof(*session));
695 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
697 session->service = service;
698 session->relevance = 0;
699 session->total_hits = 0;
700 session->total_records = 0;
701 session->number_of_warnings_unknown_elements = 0;
702 session->number_of_warnings_unknown_metadata = 0;
703 session->num_termlists = 0;
704 session->reclist = 0;
705 session->clients = 0;
706 session->expected_maxrecs = 0;
707 session->session_nmem = nmem;
708 session->nmem = nmem_create();
709 session->wrbuf = wrbuf_alloc();
710 session->databases = 0;
711 for (i = 0; i <= SESSION_WATCH_MAX; i++)
713 session->watchlist[i].data = 0;
714 session->watchlist[i].fun = 0;
719 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
721 struct hitsbytarget *res = 0;
725 for (cl = se->clients; cl; cl = client_next_in_session(cl))
728 res = nmem_malloc(nmem, sizeof(*res) * sz);
730 for (cl = se->clients; cl; cl = client_next_in_session(cl))
732 const char *name = session_setting_oneval(client_get_database(cl),
735 res[*count].id = client_get_database(cl)->database->url;
736 res[*count].name = *name ? name : "Unknown";
737 res[*count].hits = client_get_hits(cl);
738 res[*count].records = client_get_num_records(cl);
739 res[*count].diagnostic = client_get_diagnostic(cl);
740 res[*count].state = client_get_state_str(cl);
741 res[*count].connected = client_get_connection(cl) ? 1 : 0;
747 struct termlist_score **termlist(struct session *s, const char *name, int *num)
751 for (i = 0; i < s->num_termlists; i++)
752 if (!strcmp((const char *) s->termlists[i].name, name))
753 return termlist_highscore(s->termlists[i].termlist, num);
757 #ifdef MISSING_HEADERS
758 void report_nmem_stats(void)
760 size_t in_use, is_free;
762 nmem_get_memory_in_use(&in_use);
763 nmem_get_memory_free(&is_free);
765 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
766 (long) in_use, (long) is_free);
770 struct record_cluster *show_single(struct session *s, const char *id,
771 struct record_cluster **prev_r,
772 struct record_cluster **next_r)
774 struct record_cluster *r;
776 reclist_rewind(s->reclist);
779 while ((r = reclist_read_record(s->reclist)))
781 if (!strcmp(r->recid, id))
783 *next_r = reclist_read_record(s->reclist);
791 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
792 int start, int *num, int *total, int *sumhits,
795 struct record_cluster **recs = nmem_malloc(nmem_show, *num
796 * sizeof(struct record_cluster *));
797 struct reclist_sortparms *spp;
800 yaz_timing_t t = yaz_timing_create();
812 for (spp = sp; spp; spp = spp->next)
813 if (spp->type == Metadata_sortkey_relevance)
815 relevance_prepare_read(s->relevance, s->reclist);
818 reclist_sort(s->reclist, sp);
820 *total = s->reclist->num_records;
821 *sumhits = s->total_hits;
823 for (i = 0; i < start; i++)
824 if (!reclist_read_record(s->reclist))
831 for (i = 0; i < *num; i++)
833 struct record_cluster *r = reclist_read_record(s->reclist);
844 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
845 yaz_timing_get_real(t), yaz_timing_get_user(t),
846 yaz_timing_get_sys(t));
847 yaz_timing_destroy(&t);
852 void statistics(struct session *se, struct statistics *stat)
857 memset(stat, 0, sizeof(*stat));
858 for (cl = se->clients; cl; cl = client_next_in_session(cl))
860 if (!client_get_connection(cl))
861 stat->num_no_connection++;
862 switch (client_get_state(cl))
864 case Client_Connecting: stat->num_connecting++; break;
865 case Client_Working: stat->num_working++; break;
866 case Client_Idle: stat->num_idle++; break;
867 case Client_Failed: stat->num_failed++; break;
868 case Client_Error: stat->num_error++; break;
873 stat->num_hits = se->total_hits;
874 stat->num_records = se->total_records;
876 stat->num_clients = count;
879 int start_http_listener(void)
882 struct conf_server *ser = global_parameters.server;
884 if (*global_parameters.listener_override)
885 strcpy(hp, global_parameters.listener_override);
888 strcpy(hp, ser->host ? ser->host : "");
893 sprintf(hp + strlen(hp), "%d", ser->port);
896 return http_init(hp);
899 void start_proxy(void)
902 struct conf_server *ser = global_parameters.server;
904 if (*global_parameters.proxy_override)
905 strcpy(hp, global_parameters.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);
919 http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
923 // Master list of connections we're handling events to
924 static IOCHAN channel_list = 0;
925 void pazpar2_add_channel(IOCHAN chan)
927 chan->next = channel_list;
931 void pazpar2_event_loop()
933 event_loop(&channel_list);
936 static struct record_metadata *record_metadata_init(
937 NMEM nmem, char *value, enum conf_metadata_type type)
939 struct record_metadata *rec_md = record_metadata_create(nmem);
940 if (type == Metadata_type_generic)
943 p = normalize7bit_generic(p, " ,/.:([");
945 rec_md->data.text.disp = nmem_strdup(nmem, p);
946 rec_md->data.text.sort = 0;
948 else if (type == Metadata_type_year || type == Metadata_type_date)
953 if (type == Metadata_type_date)
955 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
958 rec_md->data.number.min = first;
959 rec_md->data.number.max = last;
966 const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
967 struct conf_service *service, NMEM nmem)
969 char *mergekey_norm = 0;
970 xmlNode *root = xmlDocGetRootElement(doc);
971 WRBUF norm_wr = wrbuf_alloc();
974 /* create mergekey based on mergekey attribute from XSL (if any) */
975 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
978 const char *norm_str;
979 pp2_relevance_token_t prt =
980 pp2_relevance_tokenize(
981 global_parameters.server->mergekey_pct,
982 (const char *) mergekey);
984 while ((norm_str = pp2_relevance_token_next(prt)))
988 if (wrbuf_len(norm_wr))
989 wrbuf_puts(norm_wr, " ");
990 wrbuf_puts(norm_wr, norm_str);
993 pp2_relevance_token_destroy(prt);
996 /* append (if any) mergekey=yes metadata values */
997 for (n = root->children; n; n = n->next)
999 if (n->type != XML_ELEMENT_NODE)
1001 if (!strcmp((const char *) n->name, "metadata"))
1003 struct conf_metadata *ser_md = 0;
1004 int md_field_id = -1;
1006 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1012 = conf_service_metadata_field_id(service,
1013 (const char *) type);
1014 if (md_field_id >= 0)
1016 ser_md = &service->metadata[md_field_id];
1017 if (ser_md->mergekey == Metadata_mergekey_yes)
1019 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
1022 const char *norm_str;
1023 pp2_relevance_token_t prt =
1024 pp2_relevance_tokenize(
1025 global_parameters.server->mergekey_pct,
1026 (const char *) value);
1028 while ((norm_str = pp2_relevance_token_next(prt)))
1032 if (wrbuf_len(norm_wr))
1033 wrbuf_puts(norm_wr, " ");
1034 wrbuf_puts(norm_wr, norm_str);
1038 pp2_relevance_token_destroy(prt);
1046 /* generate unique key if none is not generated already or is empty */
1047 if (wrbuf_len(norm_wr) == 0)
1049 wrbuf_printf(norm_wr, "%s-%d",
1050 client_get_database(cl)->database->url, record_no);
1052 if (wrbuf_len(norm_wr) > 0)
1053 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1054 wrbuf_destroy(norm_wr);
1055 return mergekey_norm;
1060 /** \brief ingest XML record
1061 \param cl client holds the result set for record
1062 \param rec record buffer (0 terminated)
1063 \param record_no record position (1, 2, ..)
1064 \returns resulting record or NULL on failure
1066 struct record *ingest_record(struct client *cl, const char *rec,
1069 xmlDoc *xdoc = normalize_record(client_get_database(cl),
1070 client_get_session(cl), rec);
1072 struct record *record;
1073 struct record_cluster *cluster;
1074 struct session *se = client_get_session(cl);
1075 const char *mergekey_norm;
1078 struct conf_service *service = se->service;
1083 root = xmlDocGetRootElement(xdoc);
1085 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
1088 yaz_log(YLOG_WARN, "Got no mergekey");
1092 record = record_create(se->nmem,
1093 service->num_metadata, service->num_sortkeys, cl,
1096 cluster = reclist_insert(se->reclist,
1098 record, (char *) mergekey_norm,
1100 if (global_parameters.dump_records)
1101 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1102 client_get_database(cl)->database->url, record_no);
1105 /* no room for record */
1109 relevance_newrec(se->relevance, cluster);
1111 // now parsing XML record and adding data to cluster or record metadata
1112 for (n = root->children; n; n = n->next)
1114 pp2_relevance_token_t prt;
1121 if (n->type != XML_ELEMENT_NODE)
1123 if (!strcmp((const char *) n->name, "metadata"))
1125 struct conf_metadata *ser_md = 0;
1126 struct conf_sortkey *ser_sk = 0;
1127 struct record_metadata **wheretoput = 0;
1128 struct record_metadata *rec_md = 0;
1129 int md_field_id = -1;
1130 int sk_field_id = -1;
1132 type = xmlGetProp(n, (xmlChar *) "type");
1133 value = xmlNodeListGetString(xdoc, n->children, 1);
1135 if (!type || !value || !*value)
1139 = conf_service_metadata_field_id(service, (const char *) type);
1140 if (md_field_id < 0)
1142 if (se->number_of_warnings_unknown_metadata == 0)
1145 "Ignoring unknown metadata element: %s", type);
1147 se->number_of_warnings_unknown_metadata++;
1151 ser_md = &service->metadata[md_field_id];
1153 if (ser_md->sortkey_offset >= 0){
1154 sk_field_id = ser_md->sortkey_offset;
1155 ser_sk = &service->sortkeys[sk_field_id];
1158 // non-merged metadata
1159 rec_md = record_metadata_init(se->nmem, (char *) value,
1163 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1167 wheretoput = &record->metadata[md_field_id];
1169 wheretoput = &(*wheretoput)->next;
1170 *wheretoput = rec_md;
1173 rec_md = record_metadata_init(se->nmem, (char *) value,
1175 wheretoput = &cluster->metadata[md_field_id];
1177 // and polulate with data:
1178 // assign cluster or record based on merge action
1179 if (ser_md->merge == Metadata_merge_unique)
1181 struct record_metadata *mnode;
1182 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1183 if (!strcmp((const char *) mnode->data.text.disp,
1184 rec_md->data.text.disp))
1188 rec_md->next = *wheretoput;
1189 *wheretoput = rec_md;
1192 else if (ser_md->merge == Metadata_merge_longest)
1195 || strlen(rec_md->data.text.disp)
1196 > strlen((*wheretoput)->data.text.disp))
1198 *wheretoput = rec_md;
1201 const char *sort_str = 0;
1203 ser_sk->type == Metadata_sortkey_skiparticle;
1205 if (!cluster->sortkeys[sk_field_id])
1206 cluster->sortkeys[sk_field_id] =
1207 nmem_malloc(se->nmem,
1208 sizeof(union data_types));
1210 prt = pp2_relevance_tokenize(
1211 global_parameters.server->sort_pct,
1212 rec_md->data.text.disp);
1214 pp2_relevance_token_next(prt);
1216 sort_str = pp2_get_sort(prt, skip_article);
1218 cluster->sortkeys[sk_field_id]->text.disp =
1219 rec_md->data.text.disp;
1222 sort_str = rec_md->data.text.disp;
1224 "Could not make sortkey. Bug #1858");
1226 cluster->sortkeys[sk_field_id]->text.sort =
1227 nmem_strdup(se->nmem, sort_str);
1229 yaz_log(YLOG_LOG, "text disp=%s",
1230 cluster->sortkeys[sk_field_id]->text.disp);
1231 yaz_log(YLOG_LOG, "text sort=%s",
1232 cluster->sortkeys[sk_field_id]->text.sort);
1234 pp2_relevance_token_destroy(prt);
1238 else if (ser_md->merge == Metadata_merge_all)
1240 rec_md->next = *wheretoput;
1241 *wheretoput = rec_md;
1243 else if (ser_md->merge == Metadata_merge_range)
1247 *wheretoput = rec_md;
1249 cluster->sortkeys[sk_field_id]
1254 int this_min = rec_md->data.number.min;
1255 int this_max = rec_md->data.number.max;
1256 if (this_min < (*wheretoput)->data.number.min)
1257 (*wheretoput)->data.number.min = this_min;
1258 if (this_max > (*wheretoput)->data.number.max)
1259 (*wheretoput)->data.number.max = this_max;
1264 // ranking of _all_ fields enabled ...
1266 relevance_countwords(se->relevance, cluster,
1267 (char *) value, ser_md->rank);
1269 // construct facets ...
1270 if (ser_md->termlist)
1272 if (ser_md->type == Metadata_type_year)
1275 sprintf(year, "%d", rec_md->data.number.max);
1276 add_facet(se, (char *) type, year);
1277 if (rec_md->data.number.max != rec_md->data.number.min)
1279 sprintf(year, "%d", rec_md->data.number.min);
1280 add_facet(se, (char *) type, year);
1284 add_facet(se, (char *) type, (char *) value);
1294 if (se->number_of_warnings_unknown_elements == 0)
1296 "Unexpected element in internal record: %s", n->name);
1297 se->number_of_warnings_unknown_elements++;
1307 relevance_donerecord(se->relevance, cluster);
1308 se->total_records++;
1318 * c-file-style: "Stroustrup"
1319 * indent-tabs-mode: nil
1321 * vim: shiftwidth=4 tabstop=8 expandtab