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_lookup_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_lookup_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 void session_settings_dump(struct session *se,
273 struct session_database *db,
278 int i, num = db->num_settings;
279 for (i = 0; i < num; i++)
281 struct setting *s = db->settings[i];
282 for (;s ; s = s->next)
284 wrbuf_puts(w, "<set name=\"");
285 wrbuf_xmlputs(w, s->name);
286 wrbuf_puts(w, "\" value=\"");
287 wrbuf_xmlputs(w, s->value);
288 wrbuf_puts(w, "\"/>");
296 // Retrieve first defined value for 'name' for given database.
297 // Will be extended to take into account user associated with session
298 const char *session_setting_oneval(struct session_database *db, int offset)
300 if (!db->settings[offset])
302 return db->settings[offset]->value;
305 // Prepare XSLT stylesheets for record normalization
306 // Structures are allocated on the session_wide nmem to avoid having
307 // to recompute this for every search. This would lead
308 // to leaking if a single session was to repeatedly change the PZ_XSLT
309 // setting. However, this is not a realistic use scenario.
310 static int prepare_map(struct session *se, struct session_database *sdb)
316 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
319 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
321 char auto_stylesheet[256];
323 if (!strcmp(s, "auto"))
325 const char *request_syntax = session_setting_oneval(
326 sdb, PZ_REQUESTSYNTAX);
330 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
331 "%s.xsl", request_syntax);
332 for (cp = auto_stylesheet; *cp; cp++)
334 /* deliberately only consider ASCII */
335 if (*cp > 32 && *cp < 127)
342 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
345 sdb->map = normalize_cache_get(se->normalize_cache,
353 // This analyzes settings and recomputes any supporting data structures
355 static int prepare_session_database(struct session *se,
356 struct session_database *sdb)
361 "No settings associated with %s", sdb->database->url);
364 if (sdb->settings[PZ_XSLT] && !sdb->map)
366 if (prepare_map(se, sdb) < 0)
372 // called if watch should be removed because http_channel is to be destroyed
373 static void session_watch_cancel(void *data, struct http_channel *c,
376 struct session_watchentry *ent = data;
383 // set watch. Returns 0=OK, -1 if watch is already set
384 int session_set_watch(struct session *s, int what,
385 session_watchfun fun, void *data,
386 struct http_channel *chan)
388 if (s->watchlist[what].fun)
390 s->watchlist[what].fun = fun;
391 s->watchlist[what].data = data;
392 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
393 session_watch_cancel);
397 void session_alert_watch(struct session *s, int what)
399 if (s->watchlist[what].fun)
401 /* our watch is no longer associated with http_channel */
403 session_watchfun fun;
405 http_remove_observer(s->watchlist[what].obs);
406 fun = s->watchlist[what].fun;
407 data = s->watchlist[what].data;
409 /* reset watch before fun is invoked - in case fun wants to set
411 s->watchlist[what].fun = 0;
412 s->watchlist[what].data = 0;
413 s->watchlist[what].obs = 0;
419 //callback for grep_databases
420 static void select_targets_callback(void *context, struct session_database *db)
422 struct session *se = (struct session*) context;
423 struct client *cl = client_create();
424 client_set_database(cl, db);
425 client_set_session(cl, se);
428 // Associates a set of clients with a session;
429 // Note: Session-databases represent databases with per-session
431 int select_targets(struct session *se, struct database_criterion *crit)
434 client_destroy(se->clients);
436 return session_grep_databases(se, crit, select_targets_callback);
439 int session_active_clients(struct session *s)
444 for (c = s->clients; c; c = client_next_in_session(c))
445 if (client_is_active(c))
451 // parses crit1=val1,crit2=val2|val3,...
452 static struct database_criterion *parse_filter(NMEM m, const char *buf)
454 struct database_criterion *res = 0;
461 nmem_strsplit(m, ",", buf, &values, &num);
462 for (i = 0; i < num; i++)
467 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
469 if ((eq = strchr(values[i], '=')))
470 new->type = PAZPAR2_STRING_MATCH;
471 else if ((eq = strchr(values[i], '~')))
472 new->type = PAZPAR2_SUBSTRING_MATCH;
475 yaz_log(YLOG_WARN, "Missing equal-sign/tilde in filter");
479 new->name = values[i];
480 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
482 for (subi = 0; subi < subnum; subi++)
484 struct database_criterion_value *newv
485 = nmem_malloc(m, sizeof(*newv));
486 newv->value = subvalues[subi];
487 newv->next = new->values;
496 enum pazpar2_error_code search(struct session *se,
498 const char *startrecs, const char *maxrecs,
500 const char **addinfo)
502 int live_channels = 0;
506 struct database_criterion *criteria;
508 yaz_log(YLOG_DEBUG, "Search");
511 nmem_reset(se->nmem);
513 se->total_records = se->total_hits = se->total_merged = 0;
515 se->num_termlists = 0;
516 criteria = parse_filter(se->nmem, filter);
517 live_channels = select_targets(se, criteria);
520 se->reclist = reclist_create(se->nmem);
523 return PAZPAR2_NO_TARGETS;
525 for (cl = se->clients; cl; cl = client_next_in_session(cl))
528 client_set_maxrecs(cl, atoi(maxrecs));
530 client_set_startrecs(cl, atoi(startrecs));
531 if (prepare_session_database(se, client_get_database(cl)) < 0)
533 // Parse query for target
534 if (client_parse_query(cl, query) < 0)
539 if (client_prep_connection(cl, se->service->z3950_operation_timeout,
540 se->service->z3950_session_timeout))
541 client_start_search(cl);
549 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
552 return PAZPAR2_NO_TARGETS;
554 return PAZPAR2_NO_ERROR;
557 // Creates a new session_database object for a database
558 static void session_init_databases_fun(void *context, struct database *db)
560 struct session *se = (struct session *) context;
561 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
567 assert(db->settings);
568 new->settings = nmem_malloc(se->session_nmem,
569 sizeof(struct settings *) * db->num_settings);
570 new->num_settings = db->num_settings;
571 for (i = 0; i < db->num_settings; i++)
572 new->settings[i] = db->settings[i];
573 new->next = se->databases;
577 // Doesn't free memory associated with sdb -- nmem takes care of that
578 static void session_database_destroy(struct session_database *sdb)
583 // Initialize session_database list -- this represents this session's view
584 // of the database list -- subject to modification by the settings ws command
585 void session_init_databases(struct session *se)
588 predef_grep_databases(se, se->service, 0, session_init_databases_fun);
591 // Probably session_init_databases_fun should be refactored instead of
593 static struct session_database *load_session_database(struct session *se,
596 struct database *db = find_database(id, 0, se->service);
598 resolve_database(db);
600 session_init_databases_fun((void*) se, db);
601 // New sdb is head of se->databases list
602 return se->databases;
605 // Find an existing session database. If not found, load it
606 static struct session_database *find_session_database(struct session *se,
609 struct session_database *sdb;
611 for (sdb = se->databases; sdb; sdb = sdb->next)
612 if (!strcmp(sdb->database->url, id))
614 return load_session_database(se, id);
617 // Apply a session override to a database
618 void session_apply_setting(struct session *se, char *dbname, char *setting,
621 struct session_database *sdb = find_session_database(se, dbname);
622 struct conf_service *service = se->service;
623 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
624 int offset = settings_create_offset(service, setting);
626 expand_settings_array(&sdb->settings, &sdb->num_settings, offset,
629 new->target = dbname;
632 new->next = sdb->settings[offset];
633 sdb->settings[offset] = new;
635 // Force later recompute of settings-driven data structures
636 // (happens when a search starts and client connections are prepared)
648 void destroy_session(struct session *s)
650 struct session_database *sdb;
653 client_destroy(s->clients);
654 for (sdb = s->databases; sdb; sdb = sdb->next)
655 session_database_destroy(sdb);
656 normalize_cache_destroy(s->normalize_cache);
657 nmem_destroy(s->nmem);
658 service_destroy(s->service);
659 wrbuf_destroy(s->wrbuf);
662 struct session *new_session(NMEM nmem, struct conf_service *service)
665 struct session *session = nmem_malloc(nmem, sizeof(*session));
667 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
669 session->service = service;
670 session->relevance = 0;
671 session->total_hits = 0;
672 session->total_records = 0;
673 session->number_of_warnings_unknown_elements = 0;
674 session->number_of_warnings_unknown_metadata = 0;
675 session->num_termlists = 0;
676 session->reclist = 0;
677 session->clients = 0;
678 session->session_nmem = nmem;
679 session->nmem = nmem_create();
680 session->wrbuf = wrbuf_alloc();
681 session->databases = 0;
682 for (i = 0; i <= SESSION_WATCH_MAX; i++)
684 session->watchlist[i].data = 0;
685 session->watchlist[i].fun = 0;
687 session->normalize_cache = normalize_cache_create();
692 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
694 struct hitsbytarget *res = 0;
698 for (cl = se->clients; cl; cl = client_next_in_session(cl))
701 res = nmem_malloc(nmem, sizeof(*res) * sz);
703 for (cl = se->clients; cl; cl = client_next_in_session(cl))
705 WRBUF w = wrbuf_alloc();
706 const char *name = session_setting_oneval(client_get_database(cl),
709 res[*count].id = client_get_database(cl)->database->url;
710 res[*count].name = *name ? name : "Unknown";
711 res[*count].hits = client_get_hits(cl);
712 res[*count].records = client_get_num_records(cl);
713 res[*count].diagnostic = client_get_diagnostic(cl);
714 res[*count].state = client_get_state_str(cl);
715 res[*count].connected = client_get_connection(cl) ? 1 : 0;
716 session_settings_dump(se, client_get_database(cl), w);
717 res[*count].settings_xml = w;
723 struct termlist_score **termlist(struct session *s, const char *name, int *num)
727 for (i = 0; i < s->num_termlists; i++)
728 if (!strcmp((const char *) s->termlists[i].name, name))
729 return termlist_highscore(s->termlists[i].termlist, num);
733 #ifdef MISSING_HEADERS
734 void report_nmem_stats(void)
736 size_t in_use, is_free;
738 nmem_get_memory_in_use(&in_use);
739 nmem_get_memory_free(&is_free);
741 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
742 (long) in_use, (long) is_free);
746 struct record_cluster *show_single(struct session *s, const char *id,
747 struct record_cluster **prev_r,
748 struct record_cluster **next_r)
750 struct record_cluster *r;
752 reclist_rewind(s->reclist);
755 while ((r = reclist_read_record(s->reclist)))
757 if (!strcmp(r->recid, id))
759 *next_r = reclist_read_record(s->reclist);
767 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
768 int start, int *num, int *total, int *sumhits,
771 struct record_cluster **recs = nmem_malloc(nmem_show, *num
772 * sizeof(struct record_cluster *));
773 struct reclist_sortparms *spp;
776 yaz_timing_t t = yaz_timing_create();
788 for (spp = sp; spp; spp = spp->next)
789 if (spp->type == Metadata_sortkey_relevance)
791 relevance_prepare_read(s->relevance, s->reclist);
794 reclist_sort(s->reclist, sp);
796 *total = reclist_get_num_records(s->reclist);
797 *sumhits = s->total_hits;
799 for (i = 0; i < start; i++)
800 if (!reclist_read_record(s->reclist))
807 for (i = 0; i < *num; i++)
809 struct record_cluster *r = reclist_read_record(s->reclist);
820 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
821 yaz_timing_get_real(t), yaz_timing_get_user(t),
822 yaz_timing_get_sys(t));
823 yaz_timing_destroy(&t);
828 void statistics(struct session *se, struct statistics *stat)
833 memset(stat, 0, sizeof(*stat));
834 for (cl = se->clients; cl; cl = client_next_in_session(cl))
836 if (!client_get_connection(cl))
837 stat->num_no_connection++;
838 switch (client_get_state(cl))
840 case Client_Connecting: stat->num_connecting++; break;
841 case Client_Working: stat->num_working++; break;
842 case Client_Idle: stat->num_idle++; break;
843 case Client_Failed: stat->num_failed++; break;
844 case Client_Error: stat->num_error++; break;
849 stat->num_hits = se->total_hits;
850 stat->num_records = se->total_records;
852 stat->num_clients = count;
856 // Master list of connections we're handling events to
857 static IOCHAN channel_list = 0; /* thread pr */
859 void pazpar2_add_channel(IOCHAN chan)
861 chan->next = channel_list;
865 void pazpar2_event_loop()
867 event_loop(&channel_list);
870 static struct record_metadata *record_metadata_init(
871 NMEM nmem, char *value, enum conf_metadata_type type)
873 struct record_metadata *rec_md = record_metadata_create(nmem);
874 if (type == Metadata_type_generic)
877 p = normalize7bit_generic(p, " ,/.:([");
879 rec_md->data.text.disp = nmem_strdup(nmem, p);
880 rec_md->data.text.sort = 0;
882 else if (type == Metadata_type_year || type == Metadata_type_date)
887 if (type == Metadata_type_date)
889 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
892 rec_md->data.number.min = first;
893 rec_md->data.number.max = last;
900 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
901 struct conf_service *service, WRBUF norm_wr)
905 for (n = root->children; n; n = n->next)
907 if (n->type != XML_ELEMENT_NODE)
909 if (!strcmp((const char *) n->name, "metadata"))
911 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
912 if (!strcmp(name, (const char *) type))
914 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
917 const char *norm_str;
918 pp2_relevance_token_t prt =
919 pp2_relevance_tokenize(
920 service->mergekey_pct,
921 (const char *) value);
923 wrbuf_puts(norm_wr, name);
924 wrbuf_puts(norm_wr, "=");
926 pp2_relevance_token_next(prt)))
930 if (wrbuf_len(norm_wr))
931 wrbuf_puts(norm_wr, " ");
932 wrbuf_puts(norm_wr, norm_str);
936 pp2_relevance_token_destroy(prt);
946 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
947 struct conf_service *service, NMEM nmem)
949 char *mergekey_norm = 0;
950 xmlNode *root = xmlDocGetRootElement(doc);
951 WRBUF norm_wr = wrbuf_alloc();
953 /* consider mergekey from XSL first */
954 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
957 const char *norm_str;
958 pp2_relevance_token_t prt =
959 pp2_relevance_tokenize(
960 service->mergekey_pct,
961 (const char *) mergekey);
963 while ((norm_str = pp2_relevance_token_next(prt)))
967 if (wrbuf_len(norm_wr))
968 wrbuf_puts(norm_wr, " ");
969 wrbuf_puts(norm_wr, norm_str);
972 pp2_relevance_token_destroy(prt);
977 /* no mergekey defined in XSL. Look for mergekey metadata instead */
979 for (field_id = 0; field_id < service->num_metadata; field_id++)
981 struct conf_metadata *ser_md = &service->metadata[field_id];
982 if (ser_md->mergekey != Metadata_mergekey_no)
984 int r = get_mergekey_from_doc(doc, root, ser_md->name,
986 if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
988 /* no mergekey on this one and it is required..
989 Generate unique key instead */
990 wrbuf_rewind(norm_wr);
997 /* generate unique key if none is not generated already or is empty */
998 if (wrbuf_len(norm_wr) == 0)
1000 wrbuf_printf(norm_wr, "%s-%d",
1001 client_get_database(cl)->database->url, record_no);
1003 if (wrbuf_len(norm_wr) > 0)
1004 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1005 wrbuf_destroy(norm_wr);
1006 return mergekey_norm;
1009 /** \brief see if metadata for pz:recordfilter exists
1010 \param root xml root element of normalized record
1011 \param sdb session database for client
1012 \retval 0 if there is no metadata for pz:recordfilter
1013 \retval 1 if there is metadata for pz:recordfilter
1015 If there is no pz:recordfilter defined, this function returns 1
1019 static int check_record_filter(xmlNode *root, struct session_database *sdb)
1024 s = session_setting_oneval(sdb, PZ_RECORDFILTER);
1029 for (n = root->children; n; n = n->next)
1031 if (n->type != XML_ELEMENT_NODE)
1033 if (!strcmp((const char *) n->name, "metadata"))
1035 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1039 const char *eq = strchr(s, '~');
1044 if (len == strlen((const char *)type) &&
1045 !memcmp((const char *) type, s, len))
1047 xmlChar *value = xmlNodeGetContent(n);
1048 if (value && *value)
1050 if (!eq || strstr((const char *) value, eq+1))
1063 /** \brief ingest XML record
1064 \param cl client holds the result set for record
1065 \param rec record buffer (0 terminated)
1066 \param record_no record position (1, 2, ..)
1067 \returns resulting record or NULL on failure
1069 struct record *ingest_record(struct client *cl, const char *rec,
1072 struct session_database *sdb = client_get_database(cl);
1073 struct session *se = client_get_session(cl);
1074 xmlDoc *xdoc = normalize_record(sdb, se, rec);
1076 struct record *record;
1077 struct record_cluster *cluster;
1078 const char *mergekey_norm;
1081 struct conf_service *service = se->service;
1086 root = xmlDocGetRootElement(xdoc);
1088 if (!check_record_filter(root, sdb))
1090 yaz_log(YLOG_WARN, "Filtered out record no %d from %s", record_no,
1091 sdb->database->url);
1096 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
1099 yaz_log(YLOG_WARN, "Got no mergekey");
1103 record = record_create(se->nmem,
1104 service->num_metadata, service->num_sortkeys, cl,
1107 cluster = reclist_insert(se->reclist,
1109 record, (char *) mergekey_norm,
1113 /* no room for record */
1117 if (global_parameters.dump_records)
1118 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1119 sdb->database->url, record_no);
1120 relevance_newrec(se->relevance, cluster);
1122 // now parsing XML record and adding data to cluster or record metadata
1123 for (n = root->children; n; n = n->next)
1125 pp2_relevance_token_t prt;
1132 if (n->type != XML_ELEMENT_NODE)
1134 if (!strcmp((const char *) n->name, "metadata"))
1136 struct conf_metadata *ser_md = 0;
1137 struct conf_sortkey *ser_sk = 0;
1138 struct record_metadata **wheretoput = 0;
1139 struct record_metadata *rec_md = 0;
1140 int md_field_id = -1;
1141 int sk_field_id = -1;
1143 type = xmlGetProp(n, (xmlChar *) "type");
1144 value = xmlNodeListGetString(xdoc, n->children, 1);
1146 if (!type || !value || !*value)
1150 = conf_service_metadata_field_id(service, (const char *) type);
1151 if (md_field_id < 0)
1153 if (se->number_of_warnings_unknown_metadata == 0)
1156 "Ignoring unknown metadata element: %s", type);
1158 se->number_of_warnings_unknown_metadata++;
1162 ser_md = &service->metadata[md_field_id];
1164 if (ser_md->sortkey_offset >= 0){
1165 sk_field_id = ser_md->sortkey_offset;
1166 ser_sk = &service->sortkeys[sk_field_id];
1169 // non-merged metadata
1170 rec_md = record_metadata_init(se->nmem, (char *) value,
1174 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1178 wheretoput = &record->metadata[md_field_id];
1180 wheretoput = &(*wheretoput)->next;
1181 *wheretoput = rec_md;
1184 rec_md = record_metadata_init(se->nmem, (char *) value,
1186 wheretoput = &cluster->metadata[md_field_id];
1188 // and polulate with data:
1189 // assign cluster or record based on merge action
1190 if (ser_md->merge == Metadata_merge_unique)
1192 struct record_metadata *mnode;
1193 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1194 if (!strcmp((const char *) mnode->data.text.disp,
1195 rec_md->data.text.disp))
1199 rec_md->next = *wheretoput;
1200 *wheretoput = rec_md;
1203 else if (ser_md->merge == Metadata_merge_longest)
1206 || strlen(rec_md->data.text.disp)
1207 > strlen((*wheretoput)->data.text.disp))
1209 *wheretoput = rec_md;
1212 const char *sort_str = 0;
1214 ser_sk->type == Metadata_sortkey_skiparticle;
1216 if (!cluster->sortkeys[sk_field_id])
1217 cluster->sortkeys[sk_field_id] =
1218 nmem_malloc(se->nmem,
1219 sizeof(union data_types));
1221 prt = pp2_relevance_tokenize(
1223 rec_md->data.text.disp);
1225 pp2_relevance_token_next(prt);
1227 sort_str = pp2_get_sort(prt, skip_article);
1229 cluster->sortkeys[sk_field_id]->text.disp =
1230 rec_md->data.text.disp;
1233 sort_str = rec_md->data.text.disp;
1235 "Could not make sortkey. Bug #1858");
1237 cluster->sortkeys[sk_field_id]->text.sort =
1238 nmem_strdup(se->nmem, sort_str);
1240 yaz_log(YLOG_LOG, "text disp=%s",
1241 cluster->sortkeys[sk_field_id]->text.disp);
1242 yaz_log(YLOG_LOG, "text sort=%s",
1243 cluster->sortkeys[sk_field_id]->text.sort);
1245 pp2_relevance_token_destroy(prt);
1249 else if (ser_md->merge == Metadata_merge_all)
1251 rec_md->next = *wheretoput;
1252 *wheretoput = rec_md;
1254 else if (ser_md->merge == Metadata_merge_range)
1258 *wheretoput = rec_md;
1260 cluster->sortkeys[sk_field_id]
1265 int this_min = rec_md->data.number.min;
1266 int this_max = rec_md->data.number.max;
1267 if (this_min < (*wheretoput)->data.number.min)
1268 (*wheretoput)->data.number.min = this_min;
1269 if (this_max > (*wheretoput)->data.number.max)
1270 (*wheretoput)->data.number.max = this_max;
1275 // ranking of _all_ fields enabled ...
1277 relevance_countwords(se->relevance, cluster,
1278 (char *) value, ser_md->rank);
1280 // construct facets ...
1281 if (ser_md->termlist)
1283 if (ser_md->type == Metadata_type_year)
1286 sprintf(year, "%d", rec_md->data.number.max);
1287 add_facet(se, (char *) type, year);
1288 if (rec_md->data.number.max != rec_md->data.number.min)
1290 sprintf(year, "%d", rec_md->data.number.min);
1291 add_facet(se, (char *) type, year);
1295 add_facet(se, (char *) type, (char *) value);
1305 if (se->number_of_warnings_unknown_elements == 0)
1307 "Unexpected element in internal record: %s", n->name);
1308 se->number_of_warnings_unknown_elements++;
1318 relevance_donerecord(se->relevance, cluster);
1319 se->total_records++;
1329 * c-file-style: "Stroustrup"
1330 * indent-tabs-mode: nil
1332 * vim: shiftwidth=4 tabstop=8 expandtab