1 /* $Id: logic.c,v 1.57 2007-07-30 11:52:08 quinn Exp $
2 Copyright (c) 2006-2007, Index Data.
4 This file is part of Pazpar2.
6 Pazpar2 is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 2, or (at your option) any later
11 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with Pazpar2; see the file LICENSE. If not, write to the
18 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 \brief high-level logic; mostly user sessions and settings
31 #include <sys/socket.h>
37 #include <yaz/marcdisp.h>
38 #include <yaz/comstack.h>
39 #include <yaz/tcpip.h>
40 #include <yaz/proto.h>
41 #include <yaz/readconf.h>
42 #include <yaz/pquery.h>
43 #include <yaz/otherinfo.h>
44 #include <yaz/yaz-util.h>
46 #include <yaz/query-charset.h>
47 #include <yaz/querytowrbuf.h>
48 #include <yaz/oid_db.h>
49 #include <yaz/snprintf.h>
57 #include <yaz/timing.h>
60 #include <netinet/in.h>
65 #include "termlists.h"
67 #include "relevance.h"
72 #include "normalize7bit.h"
74 #define TERMLIST_HIGH_SCORE 25
78 // Note: Some things in this structure will eventually move to configuration
79 struct parameters global_parameters =
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, s->expected_maxrecs,
149 TERMLIST_HIGH_SCORE);
150 s->num_termlists = i + 1;
152 termlist_insert(s->termlists[i].termlist, value);
155 xmlDoc *record_to_xml(struct session_database *sdb, Z_External *rec)
157 struct database *db = sdb->database;
159 const Odr_oid *oid = rec->direct_reference;
161 /* convert response record to XML somehow */
162 if (rec->which == Z_External_octet && oid
163 && !oid_oidcmp(oid, yaz_oid_recsyn_xml))
166 rdoc = xmlParseMemory((char*) rec->u.octet_aligned->buf,
167 rec->u.octet_aligned->len);
170 yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
175 else if (rec->which == Z_External_OPAC)
179 yaz_log(YLOG_WARN, "MARC decoding not configured");
184 /* OPAC gets converted to XML too */
185 WRBUF wrbuf_opac = wrbuf_alloc();
186 /* MARCXML inside the OPAC XML. Charset is in effect because we
187 use the yaz_marc handle */
188 yaz_marc_xml(sdb->yaz_marc, YAZ_MARC_MARCXML);
189 yaz_opac_decode_wrbuf(sdb->yaz_marc, rec->u.opac, wrbuf_opac);
191 rdoc = xmlParseMemory((char*) wrbuf_buf(wrbuf_opac),
192 wrbuf_len(wrbuf_opac));
194 yaz_log(YLOG_WARN, "Unable to parse OPAC XML");
195 wrbuf_destroy(wrbuf_opac);
198 else if (oid && yaz_oid_is_iso2709(oid))
200 /* ISO2709 gets converted to MARCXML */
203 yaz_log(YLOG_WARN, "MARC decoding not configured");
212 if (rec->which != Z_External_octet)
214 yaz_log(YLOG_WARN, "Unexpected external branch, probably BER %s",
218 buf = (char*) rec->u.octet_aligned->buf;
219 len = rec->u.octet_aligned->len;
220 if (yaz_marc_read_iso2709(sdb->yaz_marc, buf, len) < 0)
222 yaz_log(YLOG_WARN, "Failed to decode MARC %s", db->url);
226 yaz_marc_write_using_libxml2(sdb->yaz_marc, 1);
227 if (yaz_marc_write_xml(sdb->yaz_marc, &res,
228 "http://www.loc.gov/MARC21/slim", 0, 0) < 0)
230 yaz_log(YLOG_WARN, "Failed to encode as XML %s",
234 rdoc = xmlNewDoc((xmlChar *) "1.0");
235 xmlDocSetRootElement(rdoc, res);
240 char oid_name_buf[OID_STR_MAX];
241 const char *oid_name = yaz_oid_to_string_buf(oid, 0, oid_name_buf);
243 "Unable to handle record of type %s from %s",
248 if (global_parameters.dump_records)
250 FILE *lf = yaz_log_file();
253 yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
254 #if LIBXML_VERSION >= 20600
255 xmlDocFormatDump(lf, rdoc, 1);
257 xmlDocDump(lf, rdoc);
265 // Add static values from session database settings if applicable
266 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc)
268 struct conf_service *service = global_parameters.server->service;
271 for (i = 0; i < service->num_metadata; i++)
273 struct conf_metadata *md = &service->metadata[i];
276 if (md->setting == Metadata_setting_postproc &&
277 (offset = settings_offset(md->name)) > 0)
279 char *val = session_setting_oneval(sdb, offset);
282 xmlNode *r = xmlDocGetRootElement(doc);
283 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
285 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
291 xmlDoc *normalize_record(struct session_database *sdb, Z_External *rec)
293 struct database_retrievalmap *m;
294 xmlDoc *rdoc = record_to_xml(sdb, rec);
297 for (m = sdb->map; m; m = m->next)
303 new = xsltApplyStylesheet(m->stylesheet, rdoc, 0);
304 root= xmlDocGetRootElement(new);
305 if (!new || !root || !(root->children))
307 yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
319 insert_settings_values(sdb, rdoc);
321 if (global_parameters.dump_records)
323 FILE *lf = yaz_log_file();
327 yaz_log(YLOG_LOG, "Normalized record from %s",
329 #if LIBXML_VERSION >= 20600
330 xmlDocFormatDump(lf, rdoc, 1);
332 xmlDocDump(lf, rdoc);
341 // Retrieve first defined value for 'name' for given database.
342 // Will be extended to take into account user associated with session
343 char *session_setting_oneval(struct session_database *db, int offset)
345 if (!db->settings[offset])
347 return db->settings[offset]->value;
352 // Initialize YAZ Map structures for MARC-based targets
353 static int prepare_yazmarc(struct session_database *sdb)
359 yaz_log(YLOG_WARN, "No settings for %s", sdb->database->url);
362 if ((s = session_setting_oneval(sdb, PZ_NATIVESYNTAX))
363 && !strncmp(s, "iso2709", 7))
365 char *encoding = "marc-8s", *e;
368 // See if a native encoding is specified
369 if ((e = strchr(s, ';')))
372 sdb->yaz_marc = yaz_marc_create();
373 yaz_marc_subfield_str(sdb->yaz_marc, "\t");
375 cm = yaz_iconv_open("utf-8", encoding);
379 "Unable to map from %s to UTF-8 for target %s",
380 encoding, sdb->database->url);
383 yaz_marc_iconv(sdb->yaz_marc, cm);
388 // Prepare XSLT stylesheets for record normalization
389 // Structures are allocated on the session_wide nmem to avoid having
390 // to recompute this for every search. This would lead
391 // to leaking if a single session was to repeatedly change the PZ_XSLT
392 // setting. However, this is not a realistic use scenario.
393 static int prepare_map(struct session *se, struct session_database *sdb)
399 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
402 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
405 struct database_retrievalmap **m = &sdb->map;
407 char auto_stylesheet[256];
409 if (!strcmp(s, "auto"))
411 char *request_syntax = session_setting_oneval(sdb,
416 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
417 "%s.xsl", request_syntax);
418 for (cp = auto_stylesheet; *cp; cp++)
420 /* deliberately only consider ASCII */
421 if (*cp > 32 && *cp < 127)
428 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
431 nmem_strsplit(se->session_nmem, ",", s, &stylesheets, &num);
432 for (i = 0; i < num; i++)
434 (*m) = nmem_malloc(se->session_nmem, sizeof(**m));
436 if (!((*m)->stylesheet = conf_load_stylesheet(stylesheets[i])))
438 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Unable to load stylesheet: %s",
446 yaz_log(YLOG_WARN, "No Normalization stylesheet for target %s",
451 // This analyzes settings and recomputes any supporting data structures
453 static int prepare_session_database(struct session *se,
454 struct session_database *sdb)
459 "No settings associated with %s", sdb->database->url);
462 if (sdb->settings[PZ_NATIVESYNTAX] && !sdb->yaz_marc)
464 if (prepare_yazmarc(sdb) < 0)
467 if (sdb->settings[PZ_XSLT] && !sdb->map)
469 if (prepare_map(se, sdb) < 0)
475 // called if watch should be removed because http_channel is to be destroyed
476 static void session_watch_cancel(void *data, struct http_channel *c)
478 struct session_watchentry *ent = data;
485 // set watch. Returns 0=OK, -1 if watch is already set
486 int session_set_watch(struct session *s, int what,
487 session_watchfun fun, void *data,
488 struct http_channel *chan)
490 if (s->watchlist[what].fun)
492 s->watchlist[what].fun = fun;
493 s->watchlist[what].data = data;
494 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
495 session_watch_cancel);
499 void session_alert_watch(struct session *s, int what)
501 if (!s->watchlist[what].fun)
503 http_remove_observer(s->watchlist[what].obs);
504 (*s->watchlist[what].fun)(s->watchlist[what].data);
505 s->watchlist[what].fun = 0;
506 s->watchlist[what].data = 0;
507 s->watchlist[what].obs = 0;
510 //callback for grep_databases
511 static void select_targets_callback(void *context, struct session_database *db)
513 struct session *se = (struct session*) context;
514 struct client *cl = client_create();
515 client_set_database(cl, db);
516 client_set_session(cl, se);
519 // Associates a set of clients with a session;
520 // Note: Session-databases represent databases with per-session
522 int select_targets(struct session *se, struct database_criterion *crit)
525 client_destroy(se->clients);
527 return session_grep_databases(se, crit, select_targets_callback);
530 int session_active_clients(struct session *s)
535 for (c = s->clients; c; c = client_next_in_session(c))
536 if (client_is_active(c))
542 // parses crit1=val1,crit2=val2|val3,...
543 static struct database_criterion *parse_filter(NMEM m, const char *buf)
545 struct database_criterion *res = 0;
552 nmem_strsplit(m, ",", buf, &values, &num);
553 for (i = 0; i < num; i++)
558 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
559 char *eq = strchr(values[i], '=');
562 yaz_log(YLOG_WARN, "Missing equal-sign in filter");
566 new->name = values[i];
567 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
569 for (subi = 0; subi < subnum; subi++)
571 struct database_criterion_value *newv
572 = nmem_malloc(m, sizeof(*newv));
573 newv->value = subvalues[subi];
574 newv->next = new->values;
583 enum pazpar2_error_code search(struct session *se,
584 char *query, char *filter,
585 const char **addinfo)
587 int live_channels = 0;
591 struct database_criterion *criteria;
593 yaz_log(YLOG_DEBUG, "Search");
596 nmem_reset(se->nmem);
597 criteria = parse_filter(se->nmem, filter);
599 live_channels = select_targets(se, criteria);
602 int maxrecs = live_channels * global_parameters.toget;
603 se->num_termlists = 0;
604 se->reclist = reclist_create(se->nmem, maxrecs);
605 // This will be initialized in send_search()
606 se->total_records = se->total_hits = se->total_merged = 0;
607 se->expected_maxrecs = maxrecs;
610 return PAZPAR2_NO_TARGETS;
614 for (cl = se->clients; cl; cl = client_next_in_session(cl))
616 if (prepare_session_database(se, client_get_database(cl)) < 0)
618 *addinfo = client_get_database(cl)->database->url;
619 return PAZPAR2_CONFIG_TARGET;
621 // Parse query for target
622 if (client_parse_query(cl, query) < 0)
627 client_prep_connection(cl);
631 // If no queries could be mapped, we signal an error
635 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
637 return PAZPAR2_NO_ERROR;
640 // Creates a new session_database object for a database
641 static void session_init_databases_fun(void *context, struct database *db)
643 struct session *se = (struct session *) context;
644 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
645 int num = settings_num();
652 if (global_parameters.server && global_parameters.server->icu_chn)
653 new->pct = pp2_charset_create(global_parameters.server->icu_chn);
655 new->pct = pp2_charset_create(0);
657 new->pct = pp2_charset_create(0);
662 = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
663 memset(new->settings, 0, sizeof(struct settings*) * num);
667 for (i = 0; i < num; i++)
668 new->settings[i] = db->settings[i];
670 new->next = se->databases;
674 // Doesn't free memory associated with sdb -- nmem takes care of that
675 static void session_database_destroy(struct session_database *sdb)
677 struct database_retrievalmap *m;
679 for (m = sdb->map; m; m = m->next)
680 xsltFreeStylesheet(m->stylesheet);
682 yaz_marc_destroy(sdb->yaz_marc);
684 pp2_charset_destroy(sdb->pct);
687 // Initialize session_database list -- this represents this session's view
688 // of the database list -- subject to modification by the settings ws command
689 void session_init_databases(struct session *se)
692 predef_grep_databases(se, 0, session_init_databases_fun);
695 // Probably session_init_databases_fun should be refactored instead of
697 static struct session_database *load_session_database(struct session *se,
700 struct database *db = find_database(id, 0);
702 session_init_databases_fun((void*) se, db);
703 // New sdb is head of se->databases list
704 return se->databases;
707 // Find an existing session database. If not found, load it
708 static struct session_database *find_session_database(struct session *se,
711 struct session_database *sdb;
713 for (sdb = se->databases; sdb; sdb = sdb->next)
714 if (!strcmp(sdb->database->url, id))
716 return load_session_database(se, id);
719 // Apply a session override to a database
720 void session_apply_setting(struct session *se, char *dbname, char *setting,
723 struct session_database *sdb = find_session_database(se, dbname);
724 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
725 int offset = settings_offset_cprefix(setting);
729 yaz_log(YLOG_WARN, "Unknown setting %s", setting);
732 // Jakub: This breaks the filter setting.
733 /*if (offset == PZ_ID)
735 yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
739 new->target = dbname;
742 new->next = sdb->settings[offset];
743 sdb->settings[offset] = new;
745 // Force later recompute of settings-driven data structures
746 // (happens when a search starts and client connections are prepared)
749 case PZ_NATIVESYNTAX:
752 yaz_marc_destroy(sdb->yaz_marc);
759 struct database_retrievalmap *m;
760 // We don't worry about the map structure -- it's in nmem
761 for (m = sdb->map; m; m = m->next)
762 xsltFreeStylesheet(m->stylesheet);
769 void destroy_session(struct session *s)
771 struct session_database *sdb;
774 client_destroy(s->clients);
775 for (sdb = s->databases; sdb; sdb = sdb->next)
776 session_database_destroy(sdb);
777 nmem_destroy(s->nmem);
778 wrbuf_destroy(s->wrbuf);
781 struct session *new_session(NMEM nmem)
784 struct session *session = nmem_malloc(nmem, sizeof(*session));
786 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
788 session->relevance = 0;
789 session->total_hits = 0;
790 session->total_records = 0;
791 session->num_termlists = 0;
792 session->reclist = 0;
793 session->requestid = -1;
794 session->clients = 0;
795 session->expected_maxrecs = 0;
796 session->session_nmem = nmem;
797 session->nmem = nmem_create();
798 session->wrbuf = wrbuf_alloc();
799 session->databases = 0;
800 for (i = 0; i <= SESSION_WATCH_MAX; i++)
802 session->watchlist[i].data = 0;
803 session->watchlist[i].fun = 0;
809 struct hitsbytarget *hitsbytarget(struct session *se, int *count)
811 static struct hitsbytarget res[1000]; // FIXME MM
815 for (cl = se->clients; cl; cl = client_next_in_session(cl))
817 char *name = session_setting_oneval(client_get_database(cl), PZ_NAME);
819 res[*count].id = client_get_database(cl)->database->url;
820 res[*count].name = *name ? name : "Unknown";
821 res[*count].hits = client_get_hits(cl);
822 res[*count].records = client_get_num_records(cl);
823 res[*count].diagnostic = client_get_diagnostic(cl);
824 res[*count].state = client_get_state_str(cl);
825 res[*count].connected = client_get_connection(cl) ? 1 : 0;
832 struct termlist_score **termlist(struct session *s, const char *name, int *num)
836 for (i = 0; i < s->num_termlists; i++)
837 if (!strcmp((const char *) s->termlists[i].name, name))
838 return termlist_highscore(s->termlists[i].termlist, num);
842 #ifdef MISSING_HEADERS
843 void report_nmem_stats(void)
845 size_t in_use, is_free;
847 nmem_get_memory_in_use(&in_use);
848 nmem_get_memory_free(&is_free);
850 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
851 (long) in_use, (long) is_free);
855 struct record_cluster *show_single(struct session *s, const char *id)
857 struct record_cluster *r;
859 reclist_rewind(s->reclist);
860 while ((r = reclist_read_record(s->reclist)))
861 if (!strcmp(r->recid, id))
866 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
867 int start, int *num, int *total, int *sumhits,
870 struct record_cluster **recs = nmem_malloc(nmem_show, *num
871 * sizeof(struct record_cluster *));
872 struct reclist_sortparms *spp;
875 yaz_timing_t t = yaz_timing_create();
887 for (spp = sp; spp; spp = spp->next)
888 if (spp->type == Metadata_sortkey_relevance)
890 relevance_prepare_read(s->relevance, s->reclist);
893 reclist_sort(s->reclist, sp);
895 *total = s->reclist->num_records;
896 *sumhits = s->total_hits;
898 for (i = 0; i < start; i++)
899 if (!reclist_read_record(s->reclist))
906 for (i = 0; i < *num; i++)
908 struct record_cluster *r = reclist_read_record(s->reclist);
919 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
920 yaz_timing_get_real(t), yaz_timing_get_user(t),
921 yaz_timing_get_sys(t));
922 yaz_timing_destroy(&t);
927 void statistics(struct session *se, struct statistics *stat)
932 memset(stat, 0, sizeof(*stat));
933 for (cl = se->clients; cl; cl = client_next_in_session(cl))
935 if (!client_get_connection(cl))
936 stat->num_no_connection++;
937 switch (client_get_state(cl))
939 case Client_Connecting: stat->num_connecting++; break;
940 case Client_Initializing: stat->num_initializing++; break;
941 case Client_Searching: stat->num_searching++; break;
942 case Client_Presenting: stat->num_presenting++; break;
943 case Client_Idle: stat->num_idle++; break;
944 case Client_Failed: stat->num_failed++; break;
945 case Client_Error: stat->num_error++; break;
950 stat->num_hits = se->total_hits;
951 stat->num_records = se->total_records;
953 stat->num_clients = count;
956 void start_http_listener(void)
959 struct conf_server *ser = global_parameters.server;
961 if (*global_parameters.listener_override)
962 strcpy(hp, global_parameters.listener_override);
965 strcpy(hp, ser->host ? ser->host : "");
970 sprintf(hp + strlen(hp), "%d", ser->port);
976 void start_proxy(void)
979 struct conf_server *ser = global_parameters.server;
981 if (*global_parameters.proxy_override)
982 strcpy(hp, global_parameters.proxy_override);
983 else if (ser->proxy_host || ser->proxy_port)
985 strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
990 sprintf(hp + strlen(hp), "%d", ser->proxy_port);
996 http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
1000 // Master list of connections we're handling events to
1001 static IOCHAN channel_list = 0;
1002 void pazpar2_add_channel(IOCHAN chan)
1004 chan->next = channel_list;
1005 channel_list = chan;
1008 void pazpar2_event_loop()
1010 event_loop(&channel_list);
1013 static struct record_metadata *record_metadata_init(
1014 NMEM nmem, char *value, enum conf_metadata_type type)
1016 struct record_metadata *rec_md = record_metadata_create(nmem);
1017 if (type == Metadata_type_generic)
1020 p = normalize7bit_generic(p, " ,/.:([");
1022 rec_md->data.text = nmem_strdup(nmem, p);
1024 else if (type == Metadata_type_year)
1027 if (extract7bit_years((char *) value, &first, &last) < 0)
1029 rec_md->data.number.min = first;
1030 rec_md->data.number.max = last;
1037 struct record *ingest_record(struct client *cl, Z_External *rec,
1040 xmlDoc *xdoc = normalize_record(client_get_database(cl), rec);
1042 struct record *record;
1043 struct record_cluster *cluster;
1044 struct session *se = client_get_session(cl);
1045 xmlChar *mergekey, *mergekey_norm;
1048 struct conf_service *service = global_parameters.server->service;
1053 root = xmlDocGetRootElement(xdoc);
1054 if (!(mergekey = xmlGetProp(root, (xmlChar *) "mergekey")))
1056 yaz_log(YLOG_WARN, "No mergekey found in record");
1061 record = record_create(se->nmem,
1062 service->num_metadata, service->num_sortkeys, cl,
1065 mergekey_norm = (xmlChar *) nmem_strdup(se->nmem, (char*) mergekey);
1067 normalize7bit_mergekey((char *) mergekey_norm, 0);
1069 cluster = reclist_insert(se->reclist,
1070 global_parameters.server->service,
1071 record, (char *) mergekey_norm,
1073 if (global_parameters.dump_records)
1074 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1075 client_get_database(cl)->database->url, record_no);
1078 /* no room for record */
1082 relevance_newrec(se->relevance, cluster);
1085 // now parsing XML record and adding data to cluster or record metadata
1086 for (n = root->children; n; n = n->next)
1094 if (n->type != XML_ELEMENT_NODE)
1096 if (!strcmp((const char *) n->name, "metadata"))
1098 struct conf_metadata *ser_md = 0;
1099 struct conf_sortkey *ser_sk = 0;
1100 struct record_metadata **wheretoput = 0;
1101 struct record_metadata *rec_md = 0;
1102 int md_field_id = -1;
1103 int sk_field_id = -1;
1105 type = xmlGetProp(n, (xmlChar *) "type");
1106 value = xmlNodeListGetString(xdoc, n->children, 1);
1108 if (!type || !value)
1112 = conf_service_metadata_field_id(service, (const char *) type);
1113 if (md_field_id < 0)
1116 "Ignoring unknown metadata element: %s", type);
1120 ser_md = &service->metadata[md_field_id];
1122 if (ser_md->sortkey_offset >= 0){
1123 sk_field_id = ser_md->sortkey_offset;
1124 ser_sk = &service->sortkeys[sk_field_id];
1127 // non-merged metadata
1128 rec_md = record_metadata_init(se->nmem, (char *) value,
1132 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1136 rec_md->next = record->metadata[md_field_id];
1137 record->metadata[md_field_id] = rec_md;
1140 rec_md = record_metadata_init(se->nmem, (char *) value,
1142 wheretoput = &cluster->metadata[md_field_id];
1144 // and polulate with data:
1145 // assign cluster or record based on merge action
1146 if (ser_md->merge == Metadata_merge_unique)
1148 struct record_metadata *mnode;
1149 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1150 if (!strcmp((const char *) mnode->data.text,
1155 rec_md->next = *wheretoput;
1156 *wheretoput = rec_md;
1159 else if (ser_md->merge == Metadata_merge_longest)
1162 || strlen(rec_md->data.text)
1163 > strlen((*wheretoput)->data.text))
1165 *wheretoput = rec_md;
1168 char *s = nmem_strdup(se->nmem, rec_md->data.text);
1169 if (!cluster->sortkeys[sk_field_id])
1170 cluster->sortkeys[sk_field_id] =
1171 nmem_malloc(se->nmem,
1172 sizeof(union data_types));
1173 normalize7bit_mergekey(s,
1174 (ser_sk->type == Metadata_sortkey_skiparticle));
1175 cluster->sortkeys[sk_field_id]->text = s;
1179 else if (ser_md->merge == Metadata_merge_all)
1181 rec_md->next = *wheretoput;
1182 *wheretoput = rec_md;
1184 else if (ser_md->merge == Metadata_merge_range)
1188 *wheretoput = rec_md;
1190 cluster->sortkeys[sk_field_id]
1195 int this_min = rec_md->data.number.min;
1196 int this_max = rec_md->data.number.max;
1197 if (this_min < (*wheretoput)->data.number.min)
1198 (*wheretoput)->data.number.min = this_min;
1199 if (this_max > (*wheretoput)->data.number.max)
1200 (*wheretoput)->data.number.max = this_max;
1205 union data_types *sdata
1206 = cluster->sortkeys[sk_field_id];
1207 yaz_log(YLOG_LOG, "SK range: %d-%d",
1208 sdata->number.min, sdata->number.max);
1214 // ranking of _all_ fields enabled ...
1216 relevance_countwords(se->relevance, cluster,
1217 (char *) value, ser_md->rank);
1219 // construct facets ...
1220 if (ser_md->termlist)
1222 if (ser_md->type == Metadata_type_year)
1225 sprintf(year, "%d", rec_md->data.number.max);
1226 add_facet(se, (char *) type, year);
1227 if (rec_md->data.number.max != rec_md->data.number.min)
1229 sprintf(year, "%d", rec_md->data.number.min);
1230 add_facet(se, (char *) type, year);
1234 add_facet(se, (char *) type, (char *) value);
1244 "Unexpected element %s in internal record", n->name);
1253 relevance_donerecord(se->relevance, cluster);
1254 se->total_records++;
1264 * indent-tabs-mode: nil
1266 * vim: shiftwidth=4 tabstop=8 expandtab