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"
73 #define TERMLIST_HIGH_SCORE 25
77 // Note: Some things in this structure will eventually move to configuration
78 struct parameters global_parameters =
86 30, // operations timeout
90 60, // session timeout
95 180, // Z39.50 session timeout
99 static void log_xml_doc(xmlDoc *doc)
101 FILE *lf = yaz_log_file();
104 #if LIBXML_VERSION >= 20600
105 xmlDocDumpFormatMemory(doc, &result, &len, 1);
107 xmlDocDumpMemory(doc, &result, &len);
111 fwrite(result, 1, len, lf);
117 // Recursively traverse query structure to extract terms.
118 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
130 pull_terms(nmem, n->u.p[0], termlist, num);
131 pull_terms(nmem, n->u.p[1], termlist, num);
134 nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
135 for (i = 0; i < numwords; i++)
136 termlist[(*num)++] = words[i];
145 static void add_facet(struct session *s, const char *type, const char *value)
151 for (i = 0; i < s->num_termlists; i++)
152 if (!strcmp(s->termlists[i].name, type))
154 if (i == s->num_termlists)
156 if (i == SESSION_MAX_TERMLISTS)
158 yaz_log(YLOG_FATAL, "Too many termlists");
162 s->termlists[i].name = nmem_strdup(s->nmem, type);
163 s->termlists[i].termlist
164 = termlist_create(s->nmem, s->expected_maxrecs,
165 TERMLIST_HIGH_SCORE);
166 s->num_termlists = i + 1;
168 termlist_insert(s->termlists[i].termlist, value);
171 xmlDoc *record_to_xml(struct session_database *sdb, const char *rec)
173 struct database *db = sdb->database;
176 rdoc = xmlParseMemory(rec, strlen(rec));
180 yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
185 if (global_parameters.dump_records)
187 yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
194 #define MAX_XSLT_ARGS 16
196 // Add static values from session database settings if applicable
197 static void insert_settings_parameters(struct session_database *sdb,
198 struct session *se, char **parms)
200 struct conf_service *service = global_parameters.server->service;
205 for (i = 0; i < service->num_metadata; i++)
207 struct conf_metadata *md = &service->metadata[i];
210 if (md->setting == Metadata_setting_parameter &&
211 (setting = settings_offset(md->name)) > 0)
213 const char *val = session_setting_oneval(sdb, setting);
214 if (val && nparms < MAX_XSLT_ARGS)
217 int len = strlen(val);
218 buf = nmem_malloc(se->nmem, len + 3);
220 strcpy(buf + 1, val);
223 parms[offset++] = md->name;
224 parms[offset++] = buf;
232 // Add static values from session database settings if applicable
233 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc)
235 struct conf_service *service = global_parameters.server->service;
238 for (i = 0; i < service->num_metadata; i++)
240 struct conf_metadata *md = &service->metadata[i];
243 if (md->setting == Metadata_setting_postproc &&
244 (offset = settings_offset(md->name)) > 0)
246 const char *val = session_setting_oneval(sdb, offset);
249 xmlNode *r = xmlDocGetRootElement(doc);
250 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
252 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
258 xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
261 struct database_retrievalmap *m;
262 xmlDoc *rdoc = record_to_xml(sdb, rec);
265 for (m = sdb->map; m; m = m->next)
271 char *parms[MAX_XSLT_ARGS*2+1];
273 insert_settings_parameters(sdb, se, parms);
277 new = xsltApplyStylesheet(m->stylesheet, rdoc, (const char **) parms);
281 new = marcmap_apply(m->marcmap, rdoc);
284 root = xmlDocGetRootElement(new);
286 if (!new || !root || !(root->children))
288 yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
300 insert_settings_values(sdb, rdoc);
302 if (global_parameters.dump_records)
304 yaz_log(YLOG_LOG, "Normalized record from %s",
312 // Retrieve first defined value for 'name' for given database.
313 // Will be extended to take into account user associated with session
314 const char *session_setting_oneval(struct session_database *db, int offset)
316 if (!db->settings[offset])
318 return db->settings[offset]->value;
321 // Prepare XSLT stylesheets for record normalization
322 // Structures are allocated on the session_wide nmem to avoid having
323 // to recompute this for every search. This would lead
324 // to leaking if a single session was to repeatedly change the PZ_XSLT
325 // setting. However, this is not a realistic use scenario.
326 static int prepare_map(struct session *se, struct session_database *sdb)
332 yaz_log(YLOG_WARN, "No settings on %s", sdb->database->url);
335 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
338 struct database_retrievalmap **m = &sdb->map;
340 char auto_stylesheet[256];
342 if (!strcmp(s, "auto"))
344 const char *request_syntax = session_setting_oneval(
345 sdb, PZ_REQUESTSYNTAX);
349 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
350 "%s.xsl", request_syntax);
351 for (cp = auto_stylesheet; *cp; cp++)
353 /* deliberately only consider ASCII */
354 if (*cp > 32 && *cp < 127)
361 yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
364 nmem_strsplit(se->session_nmem, ",", s, &stylesheets, &num);
365 for (i = 0; i < num; i++)
367 (*m) = nmem_malloc(se->session_nmem, sizeof(**m));
371 if (!strcmp(&stylesheets[i][strlen(stylesheets[i])-4], ".xsl"))
373 (*m)->marcmap = NULL;
374 if (!((*m)->stylesheet = conf_load_stylesheet(stylesheets[i])))
376 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Unable to load stylesheet: %s",
382 else if (!strcmp(&stylesheets[i][strlen(stylesheets[i])-5], ".mmap"))
384 (*m)->stylesheet = NULL;
385 if (!((*m)->marcmap = marcmap_load(stylesheets[i], se->session_nmem)))
387 yaz_log(YLOG_FATAL|YLOG_ERRNO, "Unable to load marcmap: %s",
397 yaz_log(YLOG_WARN, "No Normalization stylesheet for target %s",
402 // This analyzes settings and recomputes any supporting data structures
404 static int prepare_session_database(struct session *se,
405 struct session_database *sdb)
410 "No settings associated with %s", sdb->database->url);
413 if (sdb->settings[PZ_XSLT] && !sdb->map)
415 if (prepare_map(se, sdb) < 0)
421 // called if watch should be removed because http_channel is to be destroyed
422 static void session_watch_cancel(void *data, struct http_channel *c,
425 struct session_watchentry *ent = data;
432 // set watch. Returns 0=OK, -1 if watch is already set
433 int session_set_watch(struct session *s, int what,
434 session_watchfun fun, void *data,
435 struct http_channel *chan)
437 if (s->watchlist[what].fun)
439 s->watchlist[what].fun = fun;
440 s->watchlist[what].data = data;
441 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
442 session_watch_cancel);
446 void session_alert_watch(struct session *s, int what)
448 if (s->watchlist[what].fun)
450 /* our watch is no longer associated with http_channel */
452 session_watchfun fun;
454 http_remove_observer(s->watchlist[what].obs);
455 fun = s->watchlist[what].fun;
456 data = s->watchlist[what].data;
458 /* reset watch before fun is invoked - in case fun wants to set
460 s->watchlist[what].fun = 0;
461 s->watchlist[what].data = 0;
462 s->watchlist[what].obs = 0;
468 //callback for grep_databases
469 static void select_targets_callback(void *context, struct session_database *db)
471 struct session *se = (struct session*) context;
472 struct client *cl = client_create();
473 client_set_database(cl, db);
474 client_set_session(cl, se);
477 // Associates a set of clients with a session;
478 // Note: Session-databases represent databases with per-session
480 int select_targets(struct session *se, struct database_criterion *crit)
483 client_destroy(se->clients);
485 return session_grep_databases(se, crit, select_targets_callback);
488 int session_active_clients(struct session *s)
493 for (c = s->clients; c; c = client_next_in_session(c))
494 if (client_is_active(c))
500 // parses crit1=val1,crit2=val2|val3,...
501 static struct database_criterion *parse_filter(NMEM m, const char *buf)
503 struct database_criterion *res = 0;
510 nmem_strsplit(m, ",", buf, &values, &num);
511 for (i = 0; i < num; i++)
516 struct database_criterion *new = nmem_malloc(m, sizeof(*new));
517 char *eq = strchr(values[i], '=');
520 yaz_log(YLOG_WARN, "Missing equal-sign in filter");
524 new->name = values[i];
525 nmem_strsplit(m, "|", eq, &subvalues, &subnum);
527 for (subi = 0; subi < subnum; subi++)
529 struct database_criterion_value *newv
530 = nmem_malloc(m, sizeof(*newv));
531 newv->value = subvalues[subi];
532 newv->next = new->values;
541 enum pazpar2_error_code search(struct session *se,
542 char *query, char *filter,
543 const char **addinfo)
545 int live_channels = 0;
549 struct database_criterion *criteria;
551 yaz_log(YLOG_DEBUG, "Search");
554 nmem_reset(se->nmem);
556 se->total_records = se->total_hits = se->total_merged = 0;
558 se->num_termlists = 0;
559 criteria = parse_filter(se->nmem, filter);
560 live_channels = select_targets(se, criteria);
563 int maxrecs = live_channels * global_parameters.toget;
564 se->reclist = reclist_create(se->nmem, maxrecs);
565 se->expected_maxrecs = maxrecs;
568 return PAZPAR2_NO_TARGETS;
570 for (cl = se->clients; cl; cl = client_next_in_session(cl))
572 if (prepare_session_database(se, client_get_database(cl)) < 0)
574 *addinfo = client_get_database(cl)->database->url;
575 return PAZPAR2_CONFIG_TARGET;
577 // Parse query for target
578 if (client_parse_query(cl, query) < 0)
583 if (client_prep_connection(cl))
584 client_start_search(cl);
588 // If no queries could be mapped, we signal an error
592 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
594 return PAZPAR2_NO_ERROR;
597 // Creates a new session_database object for a database
598 static void session_init_databases_fun(void *context, struct database *db)
600 struct session *se = (struct session *) context;
601 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
602 int num = settings_num();
609 = nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
610 memset(new->settings, 0, sizeof(struct settings*) * num);
614 for (i = 0; i < num; i++)
615 new->settings[i] = db->settings[i];
617 new->next = se->databases;
621 // Doesn't free memory associated with sdb -- nmem takes care of that
622 static void session_database_destroy(struct session_database *sdb)
624 struct database_retrievalmap *m;
626 for (m = sdb->map; m; m = m->next)
627 xsltFreeStylesheet(m->stylesheet);
630 // Initialize session_database list -- this represents this session's view
631 // of the database list -- subject to modification by the settings ws command
632 void session_init_databases(struct session *se)
635 predef_grep_databases(se, 0, session_init_databases_fun);
638 // Probably session_init_databases_fun should be refactored instead of
640 static struct session_database *load_session_database(struct session *se,
643 struct database *db = find_database(id, 0);
645 session_init_databases_fun((void*) se, db);
646 // New sdb is head of se->databases list
647 return se->databases;
650 // Find an existing session database. If not found, load it
651 static struct session_database *find_session_database(struct session *se,
654 struct session_database *sdb;
656 for (sdb = se->databases; sdb; sdb = sdb->next)
657 if (!strcmp(sdb->database->url, id))
659 return load_session_database(se, id);
662 // Apply a session override to a database
663 void session_apply_setting(struct session *se, char *dbname, char *setting,
666 struct session_database *sdb = find_session_database(se, dbname);
667 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
668 int offset = settings_offset_cprefix(setting);
672 yaz_log(YLOG_WARN, "Unknown setting %s", setting);
675 // Jakub: This breaks the filter setting.
676 /*if (offset == PZ_ID)
678 yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
682 new->target = dbname;
685 new->next = sdb->settings[offset];
686 sdb->settings[offset] = new;
688 // Force later recompute of settings-driven data structures
689 // (happens when a search starts and client connections are prepared)
695 struct database_retrievalmap *m;
696 // We don't worry about the map structure -- it's in nmem
697 for (m = sdb->map; m; m = m->next)
698 xsltFreeStylesheet(m->stylesheet);
705 void destroy_session(struct session *s)
707 struct session_database *sdb;
710 client_destroy(s->clients);
711 for (sdb = s->databases; sdb; sdb = sdb->next)
712 session_database_destroy(sdb);
713 nmem_destroy(s->nmem);
714 wrbuf_destroy(s->wrbuf);
717 struct session *new_session(NMEM nmem)
720 struct session *session = nmem_malloc(nmem, sizeof(*session));
722 yaz_log(YLOG_DEBUG, "New Pazpar2 session");
724 session->relevance = 0;
725 session->total_hits = 0;
726 session->total_records = 0;
727 session->number_of_warnings_unknown_elements = 0;
728 session->number_of_warnings_unknown_metadata = 0;
729 session->num_termlists = 0;
730 session->reclist = 0;
731 session->clients = 0;
732 session->expected_maxrecs = 0;
733 session->session_nmem = nmem;
734 session->nmem = nmem_create();
735 session->wrbuf = wrbuf_alloc();
736 session->databases = 0;
737 for (i = 0; i <= SESSION_WATCH_MAX; i++)
739 session->watchlist[i].data = 0;
740 session->watchlist[i].fun = 0;
745 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
747 struct hitsbytarget *res = 0;
751 for (cl = se->clients; cl; cl = client_next_in_session(cl))
754 res = nmem_malloc(nmem, sizeof(*res) * sz);
756 for (cl = se->clients; cl; cl = client_next_in_session(cl))
758 const char *name = session_setting_oneval(client_get_database(cl),
761 res[*count].id = client_get_database(cl)->database->url;
762 res[*count].name = *name ? name : "Unknown";
763 res[*count].hits = client_get_hits(cl);
764 res[*count].records = client_get_num_records(cl);
765 res[*count].diagnostic = client_get_diagnostic(cl);
766 res[*count].state = client_get_state_str(cl);
767 res[*count].connected = client_get_connection(cl) ? 1 : 0;
773 struct termlist_score **termlist(struct session *s, const char *name, int *num)
777 for (i = 0; i < s->num_termlists; i++)
778 if (!strcmp((const char *) s->termlists[i].name, name))
779 return termlist_highscore(s->termlists[i].termlist, num);
783 #ifdef MISSING_HEADERS
784 void report_nmem_stats(void)
786 size_t in_use, is_free;
788 nmem_get_memory_in_use(&in_use);
789 nmem_get_memory_free(&is_free);
791 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
792 (long) in_use, (long) is_free);
796 struct record_cluster *show_single(struct session *s, const char *id,
797 struct record_cluster **prev_r,
798 struct record_cluster **next_r)
800 struct record_cluster *r;
802 reclist_rewind(s->reclist);
805 while ((r = reclist_read_record(s->reclist)))
807 if (!strcmp(r->recid, id))
809 *next_r = reclist_read_record(s->reclist);
817 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp,
818 int start, int *num, int *total, int *sumhits,
821 struct record_cluster **recs = nmem_malloc(nmem_show, *num
822 * sizeof(struct record_cluster *));
823 struct reclist_sortparms *spp;
826 yaz_timing_t t = yaz_timing_create();
838 for (spp = sp; spp; spp = spp->next)
839 if (spp->type == Metadata_sortkey_relevance)
841 relevance_prepare_read(s->relevance, s->reclist);
844 reclist_sort(s->reclist, sp);
846 *total = s->reclist->num_records;
847 *sumhits = s->total_hits;
849 for (i = 0; i < start; i++)
850 if (!reclist_read_record(s->reclist))
857 for (i = 0; i < *num; i++)
859 struct record_cluster *r = reclist_read_record(s->reclist);
870 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
871 yaz_timing_get_real(t), yaz_timing_get_user(t),
872 yaz_timing_get_sys(t));
873 yaz_timing_destroy(&t);
878 void statistics(struct session *se, struct statistics *stat)
883 memset(stat, 0, sizeof(*stat));
884 for (cl = se->clients; cl; cl = client_next_in_session(cl))
886 if (!client_get_connection(cl))
887 stat->num_no_connection++;
888 switch (client_get_state(cl))
890 case Client_Connecting: stat->num_connecting++; break;
891 case Client_Working: stat->num_working++; break;
892 case Client_Idle: stat->num_idle++; break;
893 case Client_Failed: stat->num_failed++; break;
894 case Client_Error: stat->num_error++; break;
899 stat->num_hits = se->total_hits;
900 stat->num_records = se->total_records;
902 stat->num_clients = count;
905 int start_http_listener(void)
908 struct conf_server *ser = global_parameters.server;
910 if (*global_parameters.listener_override)
911 strcpy(hp, global_parameters.listener_override);
914 strcpy(hp, ser->host ? ser->host : "");
919 sprintf(hp + strlen(hp), "%d", ser->port);
922 return http_init(hp);
925 void start_proxy(void)
928 struct conf_server *ser = global_parameters.server;
930 if (*global_parameters.proxy_override)
931 strcpy(hp, global_parameters.proxy_override);
932 else if (ser->proxy_host || ser->proxy_port)
934 strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
939 sprintf(hp + strlen(hp), "%d", ser->proxy_port);
945 http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
949 // Master list of connections we're handling events to
950 static IOCHAN channel_list = 0;
951 void pazpar2_add_channel(IOCHAN chan)
953 chan->next = channel_list;
957 void pazpar2_event_loop()
959 event_loop(&channel_list);
962 static struct record_metadata *record_metadata_init(
963 NMEM nmem, char *value, enum conf_metadata_type type)
965 struct record_metadata *rec_md = record_metadata_create(nmem);
966 if (type == Metadata_type_generic)
969 p = normalize7bit_generic(p, " ,/.:([");
971 rec_md->data.text.disp = nmem_strdup(nmem, p);
972 rec_md->data.text.sort = 0;
974 else if (type == Metadata_type_year || type == Metadata_type_date)
979 if (type == Metadata_type_date)
981 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
984 rec_md->data.number.min = first;
985 rec_md->data.number.max = last;
992 const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
993 struct conf_service *service, NMEM nmem)
995 char *mergekey_norm = 0;
996 xmlNode *root = xmlDocGetRootElement(doc);
997 WRBUF norm_wr = wrbuf_alloc();
1000 /* create mergekey based on mergekey attribute from XSL (if any) */
1001 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
1004 const char *norm_str;
1005 pp2_relevance_token_t prt =
1006 pp2_relevance_tokenize(
1007 global_parameters.server->mergekey_pct,
1008 (const char *) mergekey);
1010 while ((norm_str = pp2_relevance_token_next(prt)))
1014 if (wrbuf_len(norm_wr))
1015 wrbuf_puts(norm_wr, " ");
1016 wrbuf_puts(norm_wr, norm_str);
1019 pp2_relevance_token_destroy(prt);
1022 /* append (if any) mergekey=yes metadata values */
1023 for (n = root->children; n; n = n->next)
1025 if (n->type != XML_ELEMENT_NODE)
1027 if (!strcmp((const char *) n->name, "metadata"))
1029 struct conf_metadata *ser_md = 0;
1030 int md_field_id = -1;
1032 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1038 = conf_service_metadata_field_id(service,
1039 (const char *) type);
1040 if (md_field_id >= 0)
1042 ser_md = &service->metadata[md_field_id];
1043 if (ser_md->mergekey == Metadata_mergekey_yes)
1045 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
1048 const char *norm_str;
1049 pp2_relevance_token_t prt =
1050 pp2_relevance_tokenize(
1051 global_parameters.server->mergekey_pct,
1052 (const char *) value);
1054 while ((norm_str = pp2_relevance_token_next(prt)))
1058 if (wrbuf_len(norm_wr))
1059 wrbuf_puts(norm_wr, " ");
1060 wrbuf_puts(norm_wr, norm_str);
1064 pp2_relevance_token_destroy(prt);
1072 /* generate unique key if none is not generated already or is empty */
1073 if (wrbuf_len(norm_wr) == 0)
1075 wrbuf_printf(norm_wr, "%s-%d",
1076 client_get_database(cl)->database->url, record_no);
1078 if (wrbuf_len(norm_wr) > 0)
1079 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1080 wrbuf_destroy(norm_wr);
1081 return mergekey_norm;
1086 /** \brief ingest XML record
1087 \param cl client holds the result set for record
1088 \param rec record buffer (0 terminated)
1089 \param record_no record position (1, 2, ..)
1090 \returns resulting record or NULL on failure
1092 struct record *ingest_record(struct client *cl, const char *rec,
1095 xmlDoc *xdoc = normalize_record(client_get_database(cl),
1096 client_get_session(cl), rec);
1098 struct record *record;
1099 struct record_cluster *cluster;
1100 struct session *se = client_get_session(cl);
1101 const char *mergekey_norm;
1104 struct conf_service *service = global_parameters.server->service;
1109 root = xmlDocGetRootElement(xdoc);
1111 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
1114 yaz_log(YLOG_WARN, "Got no mergekey");
1118 record = record_create(se->nmem,
1119 service->num_metadata, service->num_sortkeys, cl,
1122 cluster = reclist_insert(se->reclist,
1123 global_parameters.server->service,
1124 record, (char *) mergekey_norm,
1126 if (global_parameters.dump_records)
1127 yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1128 client_get_database(cl)->database->url, record_no);
1131 /* no room for record */
1135 relevance_newrec(se->relevance, cluster);
1137 // now parsing XML record and adding data to cluster or record metadata
1138 for (n = root->children; n; n = n->next)
1140 pp2_relevance_token_t prt;
1147 if (n->type != XML_ELEMENT_NODE)
1149 if (!strcmp((const char *) n->name, "metadata"))
1151 struct conf_metadata *ser_md = 0;
1152 struct conf_sortkey *ser_sk = 0;
1153 struct record_metadata **wheretoput = 0;
1154 struct record_metadata *rec_md = 0;
1155 int md_field_id = -1;
1156 int sk_field_id = -1;
1158 type = xmlGetProp(n, (xmlChar *) "type");
1159 value = xmlNodeListGetString(xdoc, n->children, 1);
1161 if (!type || !value || !*value)
1165 = conf_service_metadata_field_id(service, (const char *) type);
1166 if (md_field_id < 0)
1168 if (se->number_of_warnings_unknown_metadata == 0)
1171 "Ignoring unknown metadata element: %s", type);
1173 se->number_of_warnings_unknown_metadata++;
1177 ser_md = &service->metadata[md_field_id];
1179 if (ser_md->sortkey_offset >= 0){
1180 sk_field_id = ser_md->sortkey_offset;
1181 ser_sk = &service->sortkeys[sk_field_id];
1184 // non-merged metadata
1185 rec_md = record_metadata_init(se->nmem, (char *) value,
1189 yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
1193 wheretoput = &record->metadata[md_field_id];
1195 wheretoput = &(*wheretoput)->next;
1196 *wheretoput = rec_md;
1199 rec_md = record_metadata_init(se->nmem, (char *) value,
1201 wheretoput = &cluster->metadata[md_field_id];
1203 // and polulate with data:
1204 // assign cluster or record based on merge action
1205 if (ser_md->merge == Metadata_merge_unique)
1207 struct record_metadata *mnode;
1208 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1209 if (!strcmp((const char *) mnode->data.text.disp,
1210 rec_md->data.text.disp))
1214 rec_md->next = *wheretoput;
1215 *wheretoput = rec_md;
1218 else if (ser_md->merge == Metadata_merge_longest)
1221 || strlen(rec_md->data.text.disp)
1222 > strlen((*wheretoput)->data.text.disp))
1224 *wheretoput = rec_md;
1227 const char *sort_str = 0;
1229 ser_sk->type == Metadata_sortkey_skiparticle;
1231 if (!cluster->sortkeys[sk_field_id])
1232 cluster->sortkeys[sk_field_id] =
1233 nmem_malloc(se->nmem,
1234 sizeof(union data_types));
1236 prt = pp2_relevance_tokenize(
1237 global_parameters.server->sort_pct,
1238 rec_md->data.text.disp);
1240 pp2_relevance_token_next(prt);
1242 sort_str = pp2_get_sort(prt, skip_article);
1244 cluster->sortkeys[sk_field_id]->text.disp =
1245 rec_md->data.text.disp;
1248 sort_str = rec_md->data.text.disp;
1250 "Could not make sortkey. Bug #1858");
1252 cluster->sortkeys[sk_field_id]->text.sort =
1253 nmem_strdup(se->nmem, sort_str);
1255 yaz_log(YLOG_LOG, "text disp=%s",
1256 cluster->sortkeys[sk_field_id]->text.disp);
1257 yaz_log(YLOG_LOG, "text sort=%s",
1258 cluster->sortkeys[sk_field_id]->text.sort);
1260 pp2_relevance_token_destroy(prt);
1264 else if (ser_md->merge == Metadata_merge_all)
1266 rec_md->next = *wheretoput;
1267 *wheretoput = rec_md;
1269 else if (ser_md->merge == Metadata_merge_range)
1273 *wheretoput = rec_md;
1275 cluster->sortkeys[sk_field_id]
1280 int this_min = rec_md->data.number.min;
1281 int this_max = rec_md->data.number.max;
1282 if (this_min < (*wheretoput)->data.number.min)
1283 (*wheretoput)->data.number.min = this_min;
1284 if (this_max > (*wheretoput)->data.number.max)
1285 (*wheretoput)->data.number.max = this_max;
1290 // ranking of _all_ fields enabled ...
1292 relevance_countwords(se->relevance, cluster,
1293 (char *) value, ser_md->rank);
1295 // construct facets ...
1296 if (ser_md->termlist)
1298 if (ser_md->type == Metadata_type_year)
1301 sprintf(year, "%d", rec_md->data.number.max);
1302 add_facet(se, (char *) type, year);
1303 if (rec_md->data.number.max != rec_md->data.number.min)
1305 sprintf(year, "%d", rec_md->data.number.min);
1306 add_facet(se, (char *) type, year);
1310 add_facet(se, (char *) type, (char *) value);
1320 if (se->number_of_warnings_unknown_elements == 0)
1322 "Unexpected element in internal record: %s", n->name);
1323 se->number_of_warnings_unknown_elements++;
1333 relevance_donerecord(se->relevance, cluster);
1334 se->total_records++;
1344 * c-file-style: "Stroustrup"
1345 * indent-tabs-mode: nil
1347 * vim: shiftwidth=4 tabstop=8 expandtab