1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2010 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
45 #include <yaz/marcdisp.h>
46 #include <yaz/comstack.h>
47 #include <yaz/tcpip.h>
48 #include <yaz/proto.h>
49 #include <yaz/readconf.h>
50 #include <yaz/pquery.h>
51 #include <yaz/otherinfo.h>
52 #include <yaz/yaz-util.h>
54 #include <yaz/query-charset.h>
55 #include <yaz/querytowrbuf.h>
56 #include <yaz/oid_db.h>
57 #include <yaz/snprintf.h>
58 #include <yaz/gettimeofday.h>
62 #include <yaz/timing.h>
66 #include "parameters.h"
70 #include "termlists.h"
72 #include "relevance.h"
76 #include "normalize7bit.h"
78 #define TERMLIST_HIGH_SCORE 25
82 // Note: Some things in this structure will eventually move to configuration
83 struct parameters global_parameters =
90 struct client *client;
91 struct client_list *next;
94 static void log_xml_doc(xmlDoc *doc)
96 FILE *lf = yaz_log_file();
99 #if LIBXML_VERSION >= 20600
100 xmlDocDumpFormatMemory(doc, &result, &len, 1);
102 xmlDocDumpMemory(doc, &result, &len);
106 (void) fwrite(result, 1, len, lf);
112 static void session_enter(struct session *s)
114 yaz_mutex_enter(s->session_mutex);
117 static void session_leave(struct session *s)
119 yaz_mutex_leave(s->session_mutex);
122 // Recursively traverse query structure to extract terms.
123 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
135 pull_terms(nmem, n->u.p[0], termlist, num);
136 pull_terms(nmem, n->u.p[1], termlist, num);
139 nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
140 for (i = 0; i < numwords; i++)
141 termlist[(*num)++] = words[i];
149 void add_facet(struct session *s, const char *type, const char *value, int count)
155 for (i = 0; i < s->num_termlists; i++)
156 if (!strcmp(s->termlists[i].name, type))
158 if (i == s->num_termlists)
160 if (i == SESSION_MAX_TERMLISTS)
162 session_log(s, YLOG_FATAL, "Too many termlists");
166 s->termlists[i].name = nmem_strdup(s->nmem, type);
167 s->termlists[i].termlist
168 = termlist_create(s->nmem, TERMLIST_HIGH_SCORE);
169 s->num_termlists = i + 1;
171 session_log(s, YLOG_DEBUG, "Session: facets for %s: %s (%d)",
174 termlist_insert(s->termlists[i].termlist, value, count);
177 static xmlDoc *record_to_xml(struct session *se,
178 struct session_database *sdb, const char *rec)
180 struct database *db = sdb->database;
183 rdoc = xmlParseMemory(rec, strlen(rec));
187 session_log(se, YLOG_FATAL, "Non-wellformed XML received from %s",
192 if (global_parameters.dump_records)
194 session_log(se, YLOG_LOG, "Un-normalized record from %s", db->url);
201 #define MAX_XSLT_ARGS 16
203 // Add static values from session database settings if applicable
204 static void insert_settings_parameters(struct session_database *sdb,
205 struct conf_service *service,
213 for (i = 0; i < service->num_metadata; i++)
215 struct conf_metadata *md = &service->metadata[i];
218 if (md->setting == Metadata_setting_parameter &&
219 (setting = settings_lookup_offset(service, md->name)) >= 0)
221 const char *val = session_setting_oneval(sdb, setting);
222 if (val && nparms < MAX_XSLT_ARGS)
225 int len = strlen(val);
226 buf = nmem_malloc(nmem, len + 3);
228 strcpy(buf + 1, val);
231 parms[offset++] = md->name;
232 parms[offset++] = buf;
240 // Add static values from session database settings if applicable
241 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
242 struct conf_service *service)
246 for (i = 0; i < service->num_metadata; i++)
248 struct conf_metadata *md = &service->metadata[i];
251 if (md->setting == Metadata_setting_postproc &&
252 (offset = settings_lookup_offset(service, md->name)) >= 0)
254 const char *val = session_setting_oneval(sdb, offset);
257 xmlNode *r = xmlDocGetRootElement(doc);
258 xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
260 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
266 static xmlDoc *normalize_record(struct session *se,
267 struct session_database *sdb,
268 struct conf_service *service,
269 const char *rec, NMEM nmem)
271 xmlDoc *rdoc = record_to_xml(se, sdb, rec);
275 char *parms[MAX_XSLT_ARGS*2+1];
277 insert_settings_parameters(sdb, service, parms, nmem);
279 if (normalize_record_transform(sdb->map, &rdoc, (const char **)parms))
281 session_log(se, YLOG_WARN, "Normalize failed from %s",
286 insert_settings_values(sdb, rdoc, service);
288 if (global_parameters.dump_records)
290 session_log(se, YLOG_LOG, "Normalized record from %s",
299 void session_settings_dump(struct session *se,
300 struct session_database *db,
305 int i, num = db->num_settings;
306 for (i = 0; i < num; i++)
308 struct setting *s = db->settings[i];
309 for (;s ; s = s->next)
311 wrbuf_puts(w, "<set name=\"");
312 wrbuf_xmlputs(w, s->name);
313 wrbuf_puts(w, "\" value=\"");
314 wrbuf_xmlputs(w, s->value);
315 wrbuf_puts(w, "\"/>");
323 // Retrieve first defined value for 'name' for given database.
324 // Will be extended to take into account user associated with session
325 const char *session_setting_oneval(struct session_database *db, int offset)
327 if (offset >= db->num_settings || !db->settings[offset])
329 return db->settings[offset]->value;
332 // Prepare XSLT stylesheets for record normalization
333 // Structures are allocated on the session_wide nmem to avoid having
334 // to recompute this for every search. This would lead
335 // to leaking if a single session was to repeatedly change the PZ_XSLT
336 // setting. However, this is not a realistic use scenario.
337 static int prepare_map(struct session *se, struct session_database *sdb)
343 session_log(se, YLOG_WARN, "No settings on %s", sdb->database->url);
346 if ((s = session_setting_oneval(sdb, PZ_XSLT)))
348 char auto_stylesheet[256];
350 if (!strcmp(s, "auto"))
352 const char *request_syntax = session_setting_oneval(
353 sdb, PZ_REQUESTSYNTAX);
357 yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
358 "%s.xsl", request_syntax);
359 for (cp = auto_stylesheet; *cp; cp++)
361 /* deliberately only consider ASCII */
362 if (*cp > 32 && *cp < 127)
369 session_log(se, YLOG_WARN,
370 "No pz:requestsyntax for auto stylesheet");
373 sdb->map = normalize_cache_get(se->normalize_cache,
374 se->service->server->config, s);
381 // This analyzes settings and recomputes any supporting data structures
383 static int prepare_session_database(struct session *se,
384 struct session_database *sdb)
388 session_log(se, YLOG_WARN,
389 "No settings associated with %s", sdb->database->url);
392 if (sdb->settings[PZ_XSLT] && !sdb->map)
394 if (prepare_map(se, sdb) < 0)
400 // called if watch should be removed because http_channel is to be destroyed
401 static void session_watch_cancel(void *data, struct http_channel *c,
404 struct session_watchentry *ent = data;
411 // set watch. Returns 0=OK, -1 if watch is already set
412 int session_set_watch(struct session *s, int what,
413 session_watchfun fun, void *data,
414 struct http_channel *chan)
418 if (s->watchlist[what].fun)
423 s->watchlist[what].fun = fun;
424 s->watchlist[what].data = data;
425 s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
426 session_watch_cancel);
433 void session_alert_watch(struct session *s, int what)
437 if (s->watchlist[what].fun)
439 /* our watch is no longer associated with http_channel */
441 session_watchfun fun;
443 http_remove_observer(s->watchlist[what].obs);
444 fun = s->watchlist[what].fun;
445 data = s->watchlist[what].data;
447 /* reset watch before fun is invoked - in case fun wants to set
449 s->watchlist[what].fun = 0;
450 s->watchlist[what].data = 0;
451 s->watchlist[what].obs = 0;
454 session_log(s, YLOG_DEBUG,
455 "session_alert_watch: %d calling function: %p", what, fun);
462 //callback for grep_databases
463 static void select_targets_callback(void *context, struct session_database *db)
465 struct session *se = (struct session*) context;
466 struct client *cl = client_create();
467 struct client_list *l;
468 client_set_database(cl, db);
470 client_set_session(cl, se);
471 l = xmalloc(sizeof(*l));
473 l->next = se->clients;
477 static void session_remove_clients(struct session *se)
479 struct client_list *l;
488 struct client_list *l_next = l->next;
489 client_lock(l->client);
490 client_set_session(l->client, 0);
491 client_set_database(l->client, 0);
492 client_unlock(l->client);
493 client_destroy(l->client);
499 // Associates a set of clients with a session;
500 // Note: Session-databases represent databases with per-session
502 static int select_targets(struct session *se, const char *filter)
504 return session_grep_databases(se, filter, select_targets_callback);
507 int session_active_clients(struct session *s)
509 struct client_list *l;
512 for (l = s->clients; l; l = l->next)
513 if (client_is_active(l->client))
519 int session_is_preferred_clients_ready(struct session *s)
521 struct client_list *l;
524 for (l = s->clients; l; l = l->next)
525 if (client_is_active_preferred(l->client))
527 session_log(s, YLOG_DEBUG, "Session has %d active preferred clients.", res);
533 enum pazpar2_error_code search(struct session *se,
535 const char *startrecs, const char *maxrecs,
537 const char **addinfo)
539 int live_channels = 0;
542 struct client_list *l;
545 session_log(se, YLOG_DEBUG, "Search");
549 session_remove_clients(se);
552 reclist_destroy(se->reclist);
554 relevance_destroy(&se->relevance);
555 nmem_reset(se->nmem);
556 se->total_records = se->total_hits = se->total_merged = 0;
557 se->num_termlists = 0;
558 live_channels = select_targets(se, filter);
562 return PAZPAR2_NO_TARGETS;
564 se->reclist = reclist_create(se->nmem);
566 yaz_gettimeofday(&tval);
570 for (l = se->clients; l; l = l->next)
572 struct client *cl = l->client;
575 client_set_maxrecs(cl, atoi(maxrecs));
577 client_set_startrecs(cl, atoi(startrecs));
578 if (prepare_session_database(se, client_get_database(cl)) < 0)
580 else if (client_parse_query(cl, query) < 0)
585 if (client_prep_connection(cl, se->service->z3950_operation_timeout,
586 se->service->z3950_session_timeout,
587 se->service->server->iochan_man,
589 client_start_search(cl);
598 return PAZPAR2_MALFORMED_PARAMETER_VALUE;
601 return PAZPAR2_NO_TARGETS;
603 return PAZPAR2_NO_ERROR;
606 // Creates a new session_database object for a database
607 static void session_init_databases_fun(void *context, struct database *db)
609 struct session *se = (struct session *) context;
610 struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
616 assert(db->settings);
617 new->settings = nmem_malloc(se->session_nmem,
618 sizeof(struct settings *) * db->num_settings);
619 new->num_settings = db->num_settings;
620 for (i = 0; i < db->num_settings; i++)
622 struct setting *setting = db->settings[i];
623 new->settings[i] = setting;
625 new->next = se->databases;
629 // Doesn't free memory associated with sdb -- nmem takes care of that
630 static void session_database_destroy(struct session_database *sdb)
635 // Initialize session_database list -- this represents this session's view
636 // of the database list -- subject to modification by the settings ws command
637 void session_init_databases(struct session *se)
640 predef_grep_databases(se, se->service, session_init_databases_fun);
643 // Probably session_init_databases_fun should be refactored instead of
645 static struct session_database *load_session_database(struct session *se,
648 struct database *db = new_database(id, se->session_nmem);
650 resolve_database(se->service, db);
652 session_init_databases_fun((void*) se, db);
654 // New sdb is head of se->databases list
655 return se->databases;
658 // Find an existing session database. If not found, load it
659 static struct session_database *find_session_database(struct session *se,
662 struct session_database *sdb;
664 for (sdb = se->databases; sdb; sdb = sdb->next)
665 if (!strcmp(sdb->database->url, id))
667 return load_session_database(se, id);
670 // Apply a session override to a database
671 void session_apply_setting(struct session *se, char *dbname, char *setting,
674 struct session_database *sdb = find_session_database(se, dbname);
675 struct conf_service *service = se->service;
676 struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
677 int offset = settings_create_offset(service, setting);
679 expand_settings_array(&sdb->settings, &sdb->num_settings, offset,
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)
701 void destroy_session(struct session *se)
703 struct session_database *sdb;
705 session_log(se, YLOG_DEBUG, "Pazpar2 session destroy");
706 session_remove_clients(se);
708 for (sdb = se->databases; sdb; sdb = sdb->next)
709 session_database_destroy(sdb);
710 normalize_cache_destroy(se->normalize_cache);
711 relevance_destroy(&se->relevance);
712 reclist_destroy(se->reclist);
713 nmem_destroy(se->nmem);
714 service_destroy(se->service);
715 yaz_mutex_destroy(&se->session_mutex);
716 wrbuf_destroy(se->wrbuf);
719 struct session *new_session(NMEM nmem, struct conf_service *service,
723 struct session *session = nmem_malloc(nmem, sizeof(*session));
727 sprintf(tmp_str, "session#%u", session_id);
729 session->session_id = session_id;
730 session_log(session, YLOG_DEBUG, "New session");
731 session->service = service;
732 session->relevance = 0;
733 session->total_hits = 0;
734 session->total_records = 0;
735 session->number_of_warnings_unknown_elements = 0;
736 session->number_of_warnings_unknown_metadata = 0;
737 session->num_termlists = 0;
738 session->reclist = 0;
739 session->clients = 0;
740 session->session_nmem = nmem;
741 session->nmem = nmem_create();
742 session->wrbuf = wrbuf_alloc();
743 session->databases = 0;
744 for (i = 0; i <= SESSION_WATCH_MAX; i++)
746 session->watchlist[i].data = 0;
747 session->watchlist[i].fun = 0;
749 session->normalize_cache = normalize_cache_create();
750 session->session_mutex = 0;
751 pazpar2_mutex_create(&session->session_mutex, tmp_str);
756 struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
758 struct hitsbytarget *res = 0;
759 struct client_list *l;
763 for (l = se->clients; l; l = l->next)
766 res = nmem_malloc(nmem, sizeof(*res) * sz);
768 for (l = se->clients; l; l = l->next)
770 struct client *cl = l->client;
771 WRBUF w = wrbuf_alloc();
772 const char *name = session_setting_oneval(client_get_database(cl),
775 res[*count].id = client_get_database(cl)->database->url;
776 res[*count].name = *name ? name : "Unknown";
777 res[*count].hits = client_get_hits(cl);
778 res[*count].records = client_get_num_records(cl);
779 res[*count].diagnostic = client_get_diagnostic(cl);
780 res[*count].state = client_get_state_str(cl);
781 res[*count].connected = client_get_connection(cl) ? 1 : 0;
782 session_settings_dump(se, client_get_database(cl), w);
783 res[*count].settings_xml = w;
790 struct termlist_score **termlist(struct session *se, const char *name, int *num)
793 struct termlist_score **tl = 0;
796 for (i = 0; i < se->num_termlists; i++)
797 if (!strcmp((const char *) se->termlists[i].name, name))
799 tl = termlist_highscore(se->termlists[i].termlist, num);
806 #ifdef MISSING_HEADERS
807 void report_nmem_stats(void)
809 size_t in_use, is_free;
811 nmem_get_memory_in_use(&in_use);
812 nmem_get_memory_free(&is_free);
814 yaz_log(YLOG_LOG, "nmem stat: use=%ld free=%ld",
815 (long) in_use, (long) is_free);
819 struct record_cluster *show_single_start(struct session *se, const char *id,
820 struct record_cluster **prev_r,
821 struct record_cluster **next_r)
823 struct record_cluster *r;
826 reclist_enter(se->reclist);
829 while ((r = reclist_read_record(se->reclist)))
831 if (!strcmp(r->recid, id))
833 *next_r = reclist_read_record(se->reclist);
838 reclist_leave(se->reclist);
844 void show_single_stop(struct session *se, struct record_cluster *rec)
849 struct record_cluster **show_range_start(struct session *se,
850 struct reclist_sortparms *sp,
851 int start, int *num, int *total, Odr_int *sumhits)
853 struct record_cluster **recs;
854 struct reclist_sortparms *spp;
857 yaz_timing_t t = yaz_timing_create();
860 recs = nmem_malloc(se->nmem, *num * sizeof(struct record_cluster *));
870 for (spp = sp; spp; spp = spp->next)
871 if (spp->type == Metadata_sortkey_relevance)
873 relevance_prepare_read(se->relevance, se->reclist);
876 reclist_sort(se->reclist, sp);
878 reclist_enter(se->reclist);
879 *total = reclist_get_num_records(se->reclist);
880 *sumhits = se->total_hits;
882 for (i = 0; i < start; i++)
883 if (!reclist_read_record(se->reclist))
890 for (i = 0; i < *num; i++)
892 struct record_cluster *r = reclist_read_record(se->reclist);
900 reclist_leave(se->reclist);
904 yaz_log(YLOG_LOG, "show %6.5f %3.2f %3.2f",
905 yaz_timing_get_real(t), yaz_timing_get_user(t),
906 yaz_timing_get_sys(t));
907 yaz_timing_destroy(&t);
912 void show_range_stop(struct session *se, struct record_cluster **recs)
917 void statistics(struct session *se, struct statistics *stat)
919 struct client_list *l;
922 memset(stat, 0, sizeof(*stat));
923 for (l = se->clients; l; l = l->next)
925 struct client *cl = l->client;
926 if (!client_get_connection(cl))
927 stat->num_no_connection++;
928 switch (client_get_state(cl))
930 case Client_Connecting: stat->num_connecting++; break;
931 case Client_Working: stat->num_working++; break;
932 case Client_Idle: stat->num_idle++; break;
933 case Client_Failed: stat->num_failed++; break;
934 case Client_Error: stat->num_error++; break;
939 stat->num_hits = se->total_hits;
940 stat->num_records = se->total_records;
942 stat->num_clients = count;
945 static struct record_metadata *record_metadata_init(
946 NMEM nmem, const char *value, enum conf_metadata_type type,
947 struct _xmlAttr *attr)
949 struct record_metadata *rec_md = record_metadata_create(nmem);
950 struct record_metadata_attr **attrp = &rec_md->attributes;
952 for (; attr; attr = attr->next)
954 if (attr->children && attr->children->content)
956 if (strcmp((const char *) attr->name, "type"))
957 { /* skip the "type" attribute.. Its value is already part of
958 the element in output (md-%s) and so repeating it here
960 *attrp = nmem_malloc(nmem, sizeof(**attrp));
962 nmem_strdup(nmem, (const char *) attr->name);
964 nmem_strdup(nmem, (const char *) attr->children->content);
965 attrp = &(*attrp)->next;
971 if (type == Metadata_type_generic)
973 char *p = nmem_strdup(nmem, value);
975 p = normalize7bit_generic(p, " ,/.:([");
977 rec_md->data.text.disp = p;
978 rec_md->data.text.sort = 0;
980 else if (type == Metadata_type_year || type == Metadata_type_date)
985 if (type == Metadata_type_date)
987 if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
990 rec_md->data.number.min = first;
991 rec_md->data.number.max = last;
998 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
999 struct conf_service *service, WRBUF norm_wr)
1003 for (n = root->children; n; n = n->next)
1005 if (n->type != XML_ELEMENT_NODE)
1007 if (!strcmp((const char *) n->name, "metadata"))
1009 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1011 yaz_log(YLOG_FATAL, "Missing type attribute on metadata element. Skipping!");
1013 else if (!strcmp(name, (const char *) type))
1015 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
1018 const char *norm_str;
1019 pp2_relevance_token_t prt =
1020 pp2_relevance_tokenize(service->mergekey_pct);
1022 pp2_relevance_first(prt, (const char *) value, 0);
1023 if (wrbuf_len(norm_wr) > 0)
1024 wrbuf_puts(norm_wr, " ");
1025 wrbuf_puts(norm_wr, name);
1027 pp2_relevance_token_next(prt)))
1031 wrbuf_puts(norm_wr, " ");
1032 wrbuf_puts(norm_wr, norm_str);
1036 pp2_relevance_token_destroy(prt);
1046 static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
1047 struct conf_service *service, NMEM nmem)
1049 char *mergekey_norm = 0;
1050 xmlNode *root = xmlDocGetRootElement(doc);
1051 WRBUF norm_wr = wrbuf_alloc();
1053 /* consider mergekey from XSL first */
1054 xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
1057 const char *norm_str;
1058 pp2_relevance_token_t prt =
1059 pp2_relevance_tokenize(service->mergekey_pct);
1061 pp2_relevance_first(prt, (const char *) mergekey, 0);
1062 while ((norm_str = pp2_relevance_token_next(prt)))
1066 if (wrbuf_len(norm_wr))
1067 wrbuf_puts(norm_wr, " ");
1068 wrbuf_puts(norm_wr, norm_str);
1071 pp2_relevance_token_destroy(prt);
1076 /* no mergekey defined in XSL. Look for mergekey metadata instead */
1078 for (field_id = 0; field_id < service->num_metadata; field_id++)
1080 struct conf_metadata *ser_md = &service->metadata[field_id];
1081 if (ser_md->mergekey != Metadata_mergekey_no)
1083 int r = get_mergekey_from_doc(doc, root, ser_md->name,
1085 if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
1087 /* no mergekey on this one and it is required..
1088 Generate unique key instead */
1089 wrbuf_rewind(norm_wr);
1096 /* generate unique key if none is not generated already or is empty */
1097 if (wrbuf_len(norm_wr) == 0)
1099 wrbuf_printf(norm_wr, "%s-%d",
1100 client_get_database(cl)->database->url, record_no);
1102 if (wrbuf_len(norm_wr) > 0)
1103 mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
1104 wrbuf_destroy(norm_wr);
1105 return mergekey_norm;
1108 /** \brief see if metadata for pz:recordfilter exists
1109 \param root xml root element of normalized record
1110 \param sdb session database for client
1111 \retval 0 if there is no metadata for pz:recordfilter
1112 \retval 1 if there is metadata for pz:recordfilter
1114 If there is no pz:recordfilter defined, this function returns 1
1118 static int check_record_filter(xmlNode *root, struct session_database *sdb)
1123 s = session_setting_oneval(sdb, PZ_RECORDFILTER);
1128 for (n = root->children; n; n = n->next)
1130 if (n->type != XML_ELEMENT_NODE)
1132 if (!strcmp((const char *) n->name, "metadata"))
1134 xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
1141 if ((eq = strchr(s, '=')))
1143 else if ((eq = strchr(s, '~')))
1149 if (len == strlen((const char *)type) &&
1150 !memcmp((const char *) type, s, len))
1152 xmlChar *value = xmlNodeGetContent(n);
1153 if (value && *value)
1156 (substring && strstr((const char *) value, eq+1)) ||
1157 (!substring && !strcmp((const char *) value, eq + 1)))
1170 static int ingest_to_cluster(struct client *cl,
1174 const char *mergekey_norm);
1176 /** \brief ingest XML record
1177 \param cl client holds the result set for record
1178 \param rec record buffer (0 terminated)
1179 \param record_no record position (1, 2, ..)
1180 \param nmem working NMEM
1184 int ingest_record(struct client *cl, const char *rec,
1185 int record_no, NMEM nmem)
1187 struct session *se = client_get_session(cl);
1189 struct session_database *sdb = client_get_database(cl);
1190 struct conf_service *service = se->service;
1191 xmlDoc *xdoc = normalize_record(se, sdb, service, rec, nmem);
1193 const char *mergekey_norm;
1198 root = xmlDocGetRootElement(xdoc);
1200 if (!check_record_filter(root, sdb))
1202 session_log(se, YLOG_WARN, "Filtered out record no %d from %s",
1203 record_no, sdb->database->url);
1208 mergekey_norm = get_mergekey(xdoc, cl, record_no, service, nmem);
1211 session_log(se, YLOG_WARN, "Got no mergekey");
1216 if (client_get_session(cl) == se)
1217 ret = ingest_to_cluster(cl, xdoc, root, record_no, mergekey_norm);
1224 static int ingest_to_cluster(struct client *cl,
1228 const char *mergekey_norm)
1233 struct session_database *sdb = client_get_database(cl);
1234 struct session *se = client_get_session(cl);
1235 struct conf_service *service = se->service;
1236 struct record *record = record_create(se->nmem,
1237 service->num_metadata,
1238 service->num_sortkeys, cl,
1240 struct record_cluster *cluster = reclist_insert(se->reclist,
1247 if (global_parameters.dump_records)
1248 session_log(se, YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
1249 sdb->database->url, record_no);
1250 relevance_newrec(se->relevance, cluster);
1252 // now parsing XML record and adding data to cluster or record metadata
1253 for (n = root->children; n; n = n->next)
1255 pp2_relevance_token_t prt;
1262 if (n->type != XML_ELEMENT_NODE)
1264 if (!strcmp((const char *) n->name, "metadata"))
1266 struct conf_metadata *ser_md = 0;
1267 struct conf_sortkey *ser_sk = 0;
1268 struct record_metadata **wheretoput = 0;
1269 struct record_metadata *rec_md = 0;
1270 int md_field_id = -1;
1271 int sk_field_id = -1;
1273 type = xmlGetProp(n, (xmlChar *) "type");
1274 value = xmlNodeListGetString(xdoc, n->children, 1);
1276 if (!type || !value || !*value)
1280 = conf_service_metadata_field_id(service, (const char *) type);
1281 if (md_field_id < 0)
1283 if (se->number_of_warnings_unknown_metadata == 0)
1285 session_log(se, YLOG_WARN,
1286 "Ignoring unknown metadata element: %s", type);
1288 se->number_of_warnings_unknown_metadata++;
1292 ser_md = &service->metadata[md_field_id];
1294 if (ser_md->sortkey_offset >= 0){
1295 sk_field_id = ser_md->sortkey_offset;
1296 ser_sk = &service->sortkeys[sk_field_id];
1299 // non-merged metadata
1300 rec_md = record_metadata_init(se->nmem, (const char *) value,
1301 ser_md->type, n->properties);
1304 session_log(se, YLOG_WARN, "bad metadata data '%s' "
1305 "for element '%s'", value, type);
1308 wheretoput = &record->metadata[md_field_id];
1310 wheretoput = &(*wheretoput)->next;
1311 *wheretoput = rec_md;
1314 rec_md = record_metadata_init(se->nmem, (const char *) value,
1316 wheretoput = &cluster->metadata[md_field_id];
1318 // and polulate with data:
1319 // assign cluster or record based on merge action
1320 if (ser_md->merge == Metadata_merge_unique)
1322 struct record_metadata *mnode;
1323 for (mnode = *wheretoput; mnode; mnode = mnode->next)
1324 if (!strcmp((const char *) mnode->data.text.disp,
1325 rec_md->data.text.disp))
1329 rec_md->next = *wheretoput;
1330 *wheretoput = rec_md;
1333 else if (ser_md->merge == Metadata_merge_longest)
1336 || strlen(rec_md->data.text.disp)
1337 > strlen((*wheretoput)->data.text.disp))
1339 *wheretoput = rec_md;
1342 const char *sort_str = 0;
1344 ser_sk->type == Metadata_sortkey_skiparticle;
1346 if (!cluster->sortkeys[sk_field_id])
1347 cluster->sortkeys[sk_field_id] =
1348 nmem_malloc(se->nmem,
1349 sizeof(union data_types));
1351 prt = pp2_relevance_tokenize(service->sort_pct);
1353 pp2_relevance_first(prt, rec_md->data.text.disp,
1356 pp2_relevance_token_next(prt);
1358 sort_str = pp2_get_sort(prt);
1360 cluster->sortkeys[sk_field_id]->text.disp =
1361 rec_md->data.text.disp;
1364 sort_str = rec_md->data.text.disp;
1365 session_log(se, YLOG_WARN,
1366 "Could not make sortkey. Bug #1858");
1368 cluster->sortkeys[sk_field_id]->text.sort =
1369 nmem_strdup(se->nmem, sort_str);
1370 pp2_relevance_token_destroy(prt);
1374 else if (ser_md->merge == Metadata_merge_all)
1376 rec_md->next = *wheretoput;
1377 *wheretoput = rec_md;
1379 else if (ser_md->merge == Metadata_merge_range)
1383 *wheretoput = rec_md;
1385 cluster->sortkeys[sk_field_id]
1390 int this_min = rec_md->data.number.min;
1391 int this_max = rec_md->data.number.max;
1392 if (this_min < (*wheretoput)->data.number.min)
1393 (*wheretoput)->data.number.min = this_min;
1394 if (this_max > (*wheretoput)->data.number.max)
1395 (*wheretoput)->data.number.max = this_max;
1400 // ranking of _all_ fields enabled ...
1402 relevance_countwords(se->relevance, cluster,
1403 (char *) value, ser_md->rank,
1406 // construct facets ... unless the client already has reported them
1407 if (ser_md->termlist && !client_has_facet(cl, (char *) type))
1410 if (ser_md->type == Metadata_type_year)
1413 sprintf(year, "%d", rec_md->data.number.max);
1414 add_facet(se, (char *) type, year, 1);
1415 if (rec_md->data.number.max != rec_md->data.number.min)
1417 sprintf(year, "%d", rec_md->data.number.min);
1418 add_facet(se, (char *) type, year, 1);
1422 add_facet(se, (char *) type, (char *) value, 1);
1432 if (se->number_of_warnings_unknown_elements == 0)
1433 session_log(se, YLOG_WARN,
1434 "Unexpected element in internal record: %s", n->name);
1435 se->number_of_warnings_unknown_elements++;
1443 relevance_donerecord(se->relevance, cluster);
1444 se->total_records++;
1449 void session_log(struct session *s, int level, const char *fmt, ...)
1455 yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap);
1456 yaz_log(level, "%u %s", s->session_id, buf);
1464 * c-file-style: "Stroustrup"
1465 * indent-tabs-mode: nil
1467 * vim: shiftwidth=4 tabstop=8 expandtab