1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2013 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
42 #include <yaz/marcdisp.h>
43 #include <yaz/comstack.h>
44 #include <yaz/tcpip.h>
45 #include <yaz/proto.h>
46 #include <yaz/readconf.h>
47 #include <yaz/pquery.h>
48 #include <yaz/otherinfo.h>
49 #include <yaz/yaz-util.h>
51 #include <yaz/query-charset.h>
52 #include <yaz/querytowrbuf.h>
53 #include <yaz/oid_db.h>
54 #include <yaz/diagbib1.h>
55 #include <yaz/snprintf.h>
56 #include <yaz/rpn2cql.h>
57 #include <yaz/rpn2solr.h>
58 #include <yaz/gettimeofday.h>
62 #include <yaz/timing.h>
67 #include "parameters.h"
69 #include "connection.h"
71 #include "relevance.h"
74 static YAZ_MUTEX g_mutex = 0;
75 static int no_clients = 0;
76 static int no_clients_total = 0;
78 static int client_use(int delta)
82 yaz_mutex_create(&g_mutex);
83 yaz_mutex_enter(g_mutex);
86 no_clients_total += delta;
88 yaz_mutex_leave(g_mutex);
89 yaz_log(YLOG_DEBUG, "%s clients=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), clients);
93 int clients_count(void) {
97 int clients_count_total(void) {
101 yaz_mutex_enter(g_mutex);
102 total = no_clients_total;
103 yaz_mutex_leave(g_mutex);
108 /** \brief Represents client state for a connection to one search target */
110 struct session_database *database;
111 struct connection *connection;
112 struct session *session;
113 char *pquery; // Current search
114 char *cqlquery; // used for SRU targets only
115 char *addinfo; // diagnostic info for most resent error
119 int filtered; // When using local:, this will count the number of filtered records.
125 struct suggestions *suggestions;
126 enum client_state state;
127 struct show_raw *show_raw;
128 ZOOM_resultset resultset;
132 facet_limits_t facet_limits;
147 int active; // whether this request has been sent to the server
153 void (*error_handler)(void *data, const char *addinfo);
154 void (*record_handler)(void *data, const char *buf, size_t sz);
156 struct show_raw *next;
159 static const char *client_states[] = {
165 "Client_Disconnected"
168 const char *client_get_state_str(struct client *cl)
170 return client_states[cl->state];
173 enum client_state client_get_state(struct client *cl)
178 void client_set_state_nb(struct client *cl, enum client_state st)
183 void client_set_state(struct client *cl, enum client_state st)
186 if (client_is_active(cl))
189 /* If client is going from being active to inactive and all clients
190 are now idle we fire a watch for the session . The assumption is
191 that session is not mutex locked if client is already active */
192 if (was_active && !client_is_active(cl) && cl->session)
195 int no_active = session_active_clients(cl->session);
196 yaz_log(YLOG_DEBUG, "%s: releasing watches on zero active: %d",
197 client_get_id(cl), no_active);
198 if (no_active == 0) {
199 session_alert_watch(cl->session, SESSION_WATCH_SHOW);
200 session_alert_watch(cl->session, SESSION_WATCH_BYTARGET);
201 session_alert_watch(cl->session, SESSION_WATCH_TERMLIST);
202 session_alert_watch(cl->session, SESSION_WATCH_SHOW_PREF);
207 static void client_show_raw_error(struct client *cl, const char *addinfo);
209 struct connection *client_get_connection(struct client *cl)
211 return cl->connection;
214 struct session_database *client_get_database(struct client *cl)
219 struct session *client_get_session(struct client *cl)
224 const char *client_get_pquery(struct client *cl)
229 static void client_send_raw_present(struct client *cl);
230 static int nativesyntax_to_type(const char *s, char *type, ZOOM_record rec);
232 static void client_show_immediate(
233 ZOOM_resultset resultset, struct session_database *sdb, int position,
235 void (*error_handler)(void *data, const char *addinfo),
236 void (*record_handler)(void *data, const char *buf, size_t sz),
238 const char *nativesyntax)
247 error_handler(data, "no resultset");
250 rec = ZOOM_resultset_record_immediate(resultset, position-1);
253 error_handler(data, "no record");
256 nativesyntax_to_type(nativesyntax, type, rec);
257 buf = ZOOM_record_get(rec, type, &len);
260 error_handler(data, "no record");
263 record_handler(data, buf, len);
267 int client_show_raw_begin(struct client *cl, int position,
268 const char *syntax, const char *esn,
270 void (*error_handler)(void *data, const char *addinfo),
271 void (*record_handler)(void *data, const char *buf,
274 const char *nativesyntax)
279 nativesyntax = "raw";
282 struct session_database *sdb = client_get_database(cl);
283 nativesyntax = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
287 if (syntax == 0 && esn == 0)
288 client_show_immediate(cl->resultset, client_get_database(cl),
290 error_handler, record_handler,
291 binary, nativesyntax);
294 struct show_raw *rr, **rrp;
300 rr = xmalloc(sizeof(*rr));
301 rr->position = position;
304 rr->error_handler = error_handler;
305 rr->record_handler = record_handler;
308 rr->syntax = xstrdup(syntax);
312 rr->esn = xstrdup(esn);
316 assert(nativesyntax);
317 rr->nativesyntax = xstrdup(nativesyntax);
321 for (rrp = &cl->show_raw; *rrp; rrp = &(*rrp)->next)
325 if (cl->state == Client_Failed)
327 client_show_raw_error(cl, "client failed");
329 else if (cl->state == Client_Disconnected)
331 client_show_raw_error(cl, "client disconnected");
335 client_send_raw_present(cl);
341 static void client_show_raw_delete(struct show_raw *r)
345 xfree(r->nativesyntax);
349 void client_show_raw_remove(struct client *cl, void *data)
351 struct show_raw *rr = data;
352 struct show_raw **rrp = &cl->show_raw;
358 client_show_raw_delete(rr);
362 void client_show_raw_dequeue(struct client *cl)
364 struct show_raw *rr = cl->show_raw;
366 cl->show_raw = rr->next;
367 client_show_raw_delete(rr);
370 static void client_show_raw_error(struct client *cl, const char *addinfo)
374 cl->show_raw->error_handler(cl->show_raw->data, addinfo);
375 client_show_raw_dequeue(cl);
379 static void client_send_raw_present(struct client *cl)
381 struct session_database *sdb = client_get_database(cl);
382 struct connection *co = client_get_connection(cl);
383 ZOOM_resultset set = cl->resultset;
385 int offset = cl->show_raw->position;
386 const char *syntax = 0;
387 const char *elements = 0;
389 assert(cl->show_raw);
392 yaz_log(YLOG_DEBUG, "%s: trying to present %d record(s) from %d",
393 client_get_id(cl), 1, offset);
395 if (cl->show_raw->syntax)
396 syntax = cl->show_raw->syntax;
398 syntax = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
399 ZOOM_resultset_option_set(set, "preferredRecordSyntax", syntax);
401 if (cl->show_raw->esn)
402 elements = cl->show_raw->esn;
404 elements = session_setting_oneval(sdb, PZ_ELEMENTS);
405 if (elements && *elements)
406 ZOOM_resultset_option_set(set, "elementSetName", elements);
408 ZOOM_resultset_records(set, 0, offset-1, 1);
409 cl->show_raw->active = 1;
411 connection_continue(co);
414 static int nativesyntax_to_type(const char *s, char *type,
419 if (!strncmp(s, "iso2709", 7))
421 const char *cp = strchr(s, ';');
422 yaz_snprintf(type, 80, "xml; charset=%s", cp ? cp+1 : "marc-8s");
424 else if (!strncmp(s, "txml", 4))
426 const char *cp = strchr(s, ';');
427 yaz_snprintf(type, 80, "txml; charset=%s", cp ? cp+1 : "marc-8s");
429 else /* pass verbatim to ZOOM - including "xml" */
433 else /* attempt to deduce structure */
435 const char *syntax = ZOOM_record_get(rec, "syntax", NULL);
438 if (!strcmp(syntax, "XML"))
443 else if (!strcmp(syntax, "USmarc") || !strcmp(syntax, "MARC21"))
445 strcpy(type, "xml; charset=marc8-s");
455 * TODO Consider thread safety!!!
458 void client_report_facets(struct client *cl, ZOOM_resultset rs)
460 struct session_database *sdb = client_get_database(cl);
461 ZOOM_facet_field *facets = ZOOM_resultset_facets(rs);
465 struct session *se = client_get_session(cl);
466 int facet_num = ZOOM_resultset_facets_size(rs);
469 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
471 const char *p = strchr(s->name + 3, ':');
472 if (p && p[1] && s->value && s->value[0])
475 p++; /* p now holds logical facet name */
476 for (facet_idx = 0; facet_idx < facet_num; facet_idx++)
478 const char *native_name =
479 ZOOM_facet_field_name(facets[facet_idx]);
480 if (native_name && !strcmp(s->value, native_name))
484 ZOOM_facet_field_term_count(facets[facet_idx]);
485 for (term_idx = 0; term_idx < term_num; term_idx++ )
489 ZOOM_facet_field_get_term(facets[facet_idx],
492 add_facet(se, p, term, freq);
502 static void ingest_raw_record(struct client *cl, ZOOM_record rec)
508 nativesyntax_to_type(cl->show_raw->nativesyntax, type, rec);
509 buf = ZOOM_record_get(rec, type, &len);
510 cl->show_raw->record_handler(cl->show_raw->data, buf, len);
511 client_show_raw_dequeue(cl);
514 void client_check_preferred_watch(struct client *cl)
516 struct session *se = cl->session;
517 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: %s ", client_get_id(cl));
521 /* TODO possible threading issue. Session can have been destroyed */
522 if (session_is_preferred_clients_ready(se)) {
523 session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
526 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: Still locked on preferred targets.");
531 yaz_log(YLOG_WARN, "client_check_preferred_watch: %s. No session!", client_get_id(cl));
535 struct suggestions* client_suggestions_create(const char* suggestions_string);
536 static void client_suggestions_destroy(struct client *cl);
538 void client_search_response(struct client *cl)
540 struct connection *co = cl->connection;
541 ZOOM_connection link = connection_get_link(co);
542 ZOOM_resultset resultset = cl->resultset;
544 const char *error, *addinfo = 0;
546 if (ZOOM_connection_error(link, &error, &addinfo))
549 client_set_state(cl, Client_Error);
550 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
551 error, addinfo, client_get_id(cl));
555 client_report_facets(cl, resultset);
556 cl->record_offset = cl->startrecs;
557 cl->hits = ZOOM_resultset_size(resultset);
558 yaz_log(YLOG_DEBUG, "client_search_response: hits " ODR_INT_PRINTF, cl->hits);
560 client_suggestions_destroy(cl);
561 cl->suggestions = client_suggestions_create(ZOOM_resultset_option_get(resultset, "suggestions"));
565 void client_got_records(struct client *cl)
567 struct session *se = cl->session;
570 if (reclist_get_num_records(se->reclist) > 0)
573 session_alert_watch(se, SESSION_WATCH_SHOW);
574 session_alert_watch(se, SESSION_WATCH_BYTARGET);
575 session_alert_watch(se, SESSION_WATCH_TERMLIST);
576 session_alert_watch(se, SESSION_WATCH_RECORD);
582 static void client_record_ingest(struct client *cl)
584 const char *msg, *addinfo;
586 ZOOM_resultset resultset = cl->resultset;
587 struct session *se = client_get_session(cl);
589 if ((rec = ZOOM_resultset_record_immediate(resultset, cl->record_offset)))
591 int offset = ++cl->record_offset;
592 if (cl->session == 0) {
595 else if (ZOOM_record_error(rec, &msg, &addinfo, 0))
597 session_log(se, YLOG_WARN, "Record error %s (%s): %s #%d",
598 msg, addinfo, client_get_id(cl), offset);
602 struct session_database *sdb = client_get_database(cl);
603 NMEM nmem = nmem_create();
607 const char *s = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
608 if (nativesyntax_to_type(s, type, rec))
609 session_log(se, YLOG_WARN, "Failed to determine record type");
610 xmlrec = ZOOM_record_get(rec, type, NULL);
613 const char *rec_syn = ZOOM_record_get(rec, "syntax", NULL);
614 session_log(se, YLOG_WARN, "ZOOM_record_get failed from %s #%d",
615 client_get_id(cl), offset);
616 session_log(se, YLOG_LOG, "pz:nativesyntax=%s . "
617 "ZOOM record type=%s . Actual record syntax=%s",
618 s ? s : "null", type,
619 rec_syn ? rec_syn : "null");
623 /* OK = 0, -1 = failure, -2 = Filtered */
624 int rc = ingest_record(cl, xmlrec, cl->record_offset, nmem);
627 const char *rec_syn = ZOOM_record_get(rec, "syntax", NULL);
628 session_log(se, YLOG_WARN,
629 "Failed to ingest record from %s #%d",
630 client_get_id(cl), offset);
631 session_log(se, YLOG_LOG, "pz:nativesyntax=%s . "
632 "ZOOM record type=%s . Actual record syntax=%s",
633 s ? s : "null", type,
634 rec_syn ? rec_syn : "null");
644 session_log(se, YLOG_WARN, "Got NULL record from %s #%d",
645 client_get_id(cl), cl->record_offset);
649 void client_record_response(struct client *cl)
651 struct connection *co = cl->connection;
652 ZOOM_connection link = connection_get_link(co);
653 ZOOM_resultset resultset = cl->resultset;
654 const char *error, *addinfo;
656 if (ZOOM_connection_error(link, &error, &addinfo))
658 client_set_state(cl, Client_Error);
659 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
660 error, addinfo, client_get_id(cl));
664 if (cl->show_raw && cl->show_raw->active)
667 if ((rec = ZOOM_resultset_record_immediate(
668 resultset, cl->show_raw->position-1)))
670 cl->show_raw->active = 0;
671 ingest_raw_record(cl, rec);
675 yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d",
676 cl->show_raw->position-1);
681 client_record_ingest(cl);
686 int client_reingest(struct client *cl)
688 int i = cl->startrecs;
689 int to = cl->record_offset;
692 cl->record_offset = i;
694 client_record_ingest(cl);
698 static void client_set_facets_request(struct client *cl, ZOOM_connection link)
700 struct session_database *sdb = client_get_database(cl);
702 WRBUF w = wrbuf_alloc();
706 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
708 const char *p = strchr(s->name + 3, ':');
711 yaz_log(YLOG_WARN, "Malformed facetmap name: %s", s->name);
713 else if (s->value && s->value[0])
715 wrbuf_puts(w, "@attr 1=");
716 yaz_encode_pqf_term(w, s->value, strlen(s->value));
721 yaz_log(YLOG_DEBUG, "using facets str: %s", wrbuf_cstr(w));
722 ZOOM_connection_option_set(link, "facets",
723 wrbuf_len(w) ? wrbuf_cstr(w) : 0);
727 int client_has_facet(struct client *cl, const char *name)
729 struct session_database *sdb = client_get_database(cl);
732 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
734 const char *p = strchr(s->name + 3, ':');
735 if (p && !strcmp(name, p + 1))
741 static const char *get_strategy_plus_sort(struct client *l, const char *field)
743 struct session_database *sdb = client_get_database(l);
746 const char *strategy_plus_sort = 0;
748 for (s = sdb->settings[PZ_SORTMAP]; s; s = s->next)
750 char *p = strchr(s->name + 3, ':');
753 yaz_log(YLOG_WARN, "Malformed sortmap name: %s", s->name);
757 if (!strcmp(p, field))
759 strategy_plus_sort = s->value;
763 return strategy_plus_sort;
766 void client_update_show_stat(struct client *cl, int cmd)
769 cl->show_stat_no = 0;
774 int client_fetch_more(struct client *cl)
776 struct session_database *sdb = client_get_database(cl);
781 yaz_log(YLOG_LOG, "cl=%s show_stat_no=%d got=%d",
782 client_get_id(cl), cl->show_stat_no, cl->record_offset);
783 if (cl->show_stat_no < cl->record_offset)
785 yaz_log(YLOG_LOG, "cl=%s Trying to get more", client_get_id(cl));
787 str = session_setting_oneval(sdb, PZ_EXTENDRECS);
789 extend_recs = atoi(str);
791 if (extend_recs > cl->hits)
792 extend_recs = cl->hits;
794 number = extend_recs - cl->record_offset;
797 ZOOM_resultset set = cl->resultset;
798 struct connection *co = client_get_connection(cl);
800 str = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
801 ZOOM_resultset_option_set(set, "preferredRecordSyntax", str);
802 str = session_setting_oneval(sdb, PZ_ELEMENTS);
804 ZOOM_resultset_option_set(set, "elementSetName", str);
806 ZOOM_resultset_records(set, 0, cl->record_offset, number);
807 client_set_state(cl, Client_Working);
808 connection_continue(co);
813 yaz_log(YLOG_LOG, "cl=%s. OK no more in total set", client_get_id(cl));
818 int client_parse_init(struct client *cl, int same_search)
820 cl->same_search = same_search;
825 * TODO consider how to extend the range
827 int client_parse_range(struct client *cl, const char *startrecs, const char *maxrecs)
829 if (maxrecs && atoi(maxrecs) != cl->maxrecs)
832 cl->maxrecs = atoi(maxrecs);
835 if (startrecs && atoi(startrecs) != cl->startrecs)
838 cl->startrecs = atoi(startrecs);
844 int client_start_search(struct client *cl)
846 struct session_database *sdb = client_get_database(cl);
847 struct connection *co = 0;
848 ZOOM_connection link = 0;
849 struct session *se = client_get_session(cl);
851 const char *opt_piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK);
852 const char *opt_queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING);
853 const char *opt_elements = session_setting_oneval(sdb, PZ_ELEMENTS);
854 const char *opt_requestsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
855 const char *opt_maxrecs = session_setting_oneval(sdb, PZ_MAXRECS);
856 const char *opt_sru = session_setting_oneval(sdb, PZ_SRU);
857 const char *opt_sort = session_setting_oneval(sdb, PZ_SORT);
858 const char *opt_preferred = session_setting_oneval(sdb, PZ_PREFERRED);
859 const char *extra_args = session_setting_oneval(sdb, PZ_EXTRA_ARGS);
860 const char *opt_present_chunk = session_setting_oneval(sdb, PZ_PRESENT_CHUNK);
862 char maxrecs_str[24], startrecs_str[24], present_chunk_str[24];
864 int present_chunk = 20; // Default chunk size
865 int rc_prep_connection;
868 yaz_gettimeofday(&tval);
871 if (opt_present_chunk && strcmp(opt_present_chunk,"")) {
872 present_chunk = atoi(opt_present_chunk);
873 yaz_log(YLOG_DEBUG, "Present chunk set to %d", present_chunk);
876 client_prep_connection(cl, se->service->z3950_operation_timeout,
877 se->service->z3950_session_timeout,
878 se->service->server->iochan_man,
880 /* Nothing has changed and we already have a result */
881 if (cl->same_search == 1 && rc_prep_connection == 2)
883 session_log(se, YLOG_LOG, "client %s REUSE result", client_get_id(cl));
884 return client_reingest(cl);
886 else if (!rc_prep_connection)
888 session_log(se, YLOG_LOG, "client %s FAILED to search: No connection.", client_get_id(cl));
891 co = client_get_connection(cl);
893 link = connection_get_link(co);
896 session_log(se, YLOG_LOG, "client %s NEW search", client_get_id(cl));
901 if (extra_args && *extra_args)
902 ZOOM_connection_option_set(link, "extraArgs", extra_args);
905 cl->preferred = atoi(opt_preferred);
907 yaz_log(YLOG_LOG, "Target %s has preferred status: %d",
908 client_get_id(cl), cl->preferred);
912 ZOOM_connection_option_set(link, "piggyback", opt_piggyback);
914 ZOOM_connection_option_set(link, "piggyback", "1");
916 ZOOM_connection_option_set(link, "rpnCharset", opt_queryenc);
917 if (*opt_sru && *opt_elements)
918 ZOOM_connection_option_set(link, "schema", opt_elements);
919 else if (*opt_elements)
920 ZOOM_connection_option_set(link, "elementSetName", opt_elements);
922 ZOOM_connection_option_set(link, "preferredRecordSyntax", opt_requestsyn);
924 if (opt_maxrecs && *opt_maxrecs)
926 cl->maxrecs = atoi(opt_maxrecs);
929 /* convert back to string representation used in ZOOM API */
930 sprintf(maxrecs_str, "%d", cl->maxrecs);
931 ZOOM_connection_option_set(link, "count", maxrecs_str);
933 /* A present_chunk less than 1 will disable chunking. */
934 if (present_chunk > 0 && cl->maxrecs > present_chunk) {
935 sprintf(present_chunk_str, "%d", present_chunk);
936 ZOOM_connection_option_set(link, "presentChunk", present_chunk_str);
937 yaz_log(YLOG_DEBUG, "Present chunk set to %s", present_chunk_str);
940 ZOOM_connection_option_set(link, "presentChunk", maxrecs_str);
941 yaz_log(YLOG_DEBUG, "Present chunk set to %s (maxrecs)", maxrecs_str);
943 sprintf(startrecs_str, "%d", cl->startrecs);
944 ZOOM_connection_option_set(link, "start", startrecs_str);
946 /* TODO Verify does it break something for CQL targets(non-SOLR) ? */
947 /* facets definition is in PQF */
948 client_set_facets_request(cl, link);
950 query = ZOOM_query_create();
953 yaz_log(YLOG_LOG, "Client %s: Search CQL: %s", client_get_id(cl), cl->cqlquery);
954 ZOOM_query_cql(query, cl->cqlquery);
956 ZOOM_query_sortby(query, opt_sort);
960 yaz_log(YLOG_LOG, "Client %s: Search PQF: %s", client_get_id(cl), cl->pquery);
962 ZOOM_query_prefix(query, cl->pquery);
964 if (cl->sort_strategy && cl->sort_criteria) {
965 yaz_log(YLOG_LOG, "Client %s: Setting ZOOM sort strategy and criteria: %s %s",
966 client_get_id(cl), cl->sort_strategy, cl->sort_criteria);
967 ZOOM_query_sortby2(query, cl->sort_strategy, cl->sort_criteria);
970 yaz_log(YLOG_DEBUG,"Client %s: Starting search", client_get_id(cl));
971 client_set_state(cl, Client_Working);
973 cl->record_offset = 0;
974 rs = ZOOM_connection_search(link, query);
975 ZOOM_query_destroy(query);
976 ZOOM_resultset_destroy(cl->resultset);
978 connection_continue(co);
982 struct client *client_create(const char *id)
984 struct client *cl = xmalloc(sizeof(*cl));
995 cl->record_offset = 0;
998 cl->state = Client_Disconnected;
1001 cl->suggestions = 0;
1003 pazpar2_mutex_create(&cl->mutex, "client");
1006 cl->facet_limits = 0;
1007 cl->sort_strategy = 0;
1008 cl->sort_criteria = 0;
1010 cl->id = xstrdup(id);
1016 void client_lock(struct client *c)
1018 yaz_mutex_enter(c->mutex);
1021 void client_unlock(struct client *c)
1023 yaz_mutex_leave(c->mutex);
1026 void client_incref(struct client *c)
1028 pazpar2_incref(&c->ref_count, c->mutex);
1029 yaz_log(YLOG_DEBUG, "client_incref c=%p %s cnt=%d",
1030 c, client_get_id(c), c->ref_count);
1033 int client_destroy(struct client *c)
1037 yaz_log(YLOG_DEBUG, "client_destroy c=%p %s cnt=%d",
1038 c, client_get_id(c), c->ref_count);
1039 if (!pazpar2_decref(&c->ref_count, c->mutex))
1050 xfree(c->sort_strategy);
1051 xfree(c->sort_criteria);
1052 assert(!c->connection);
1053 facet_limits_destroy(c->facet_limits);
1057 ZOOM_resultset_destroy(c->resultset);
1059 yaz_mutex_destroy(&c->mutex);
1068 void client_set_connection(struct client *cl, struct connection *con)
1071 ZOOM_resultset_release(cl->resultset);
1074 assert(cl->connection == 0);
1075 cl->connection = con;
1080 cl->connection = con;
1085 void client_disconnect(struct client *cl)
1087 if (cl->state != Client_Idle)
1088 client_set_state(cl, Client_Disconnected);
1089 client_set_connection(cl, 0);
1093 // Initialize CCL map for a target
1094 static CCL_bibset prepare_cclmap(struct client *cl, CCL_bibset base_bibset)
1096 struct session_database *sdb = client_get_database(cl);
1103 res = ccl_qual_dup(base_bibset);
1105 res = ccl_qual_mk();
1106 for (s = sdb->settings[PZ_CCLMAP]; s; s = s->next)
1108 const char *addinfo = 0;
1109 char *p = strchr(s->name + 3, ':');
1112 WRBUF w = wrbuf_alloc();
1113 wrbuf_printf(w, "Malformed cclmap. name=%s", s->name);
1114 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1115 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1116 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1118 client_set_state_nb(cl, Client_Error);
1124 if (ccl_qual_fitem2(res, s->value, p, &addinfo))
1126 WRBUF w = wrbuf_alloc();
1128 wrbuf_printf(w, "Malformed cclmap. name=%s: value=%s (%s)",
1129 s->name, p, addinfo);
1130 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1131 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1132 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1134 client_set_state_nb(cl, Client_Error);
1143 // returns a xmalloced CQL query corresponding to the pquery in client
1144 static char *make_cqlquery(struct client *cl, Z_RPNQuery *zquery)
1146 cql_transform_t cqlt = cql_transform_create();
1148 WRBUF wrb = wrbuf_alloc();
1151 if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
1153 yaz_log(YLOG_WARN, "Failed to generate CQL query, code=%d", status);
1157 r = xstrdup(wrbuf_cstr(wrb));
1160 cql_transform_close(cqlt);
1164 // returns a xmalloced SOLR query corresponding to the pquery in client
1165 // TODO Could prob. be merge with the similar make_cqlquery
1166 static char *make_solrquery(struct client *cl, Z_RPNQuery *zquery)
1168 solr_transform_t sqlt = solr_transform_create();
1170 WRBUF wrb = wrbuf_alloc();
1173 if ((status = solr_transform_rpn2solr_wrbuf(sqlt, wrb, zquery)))
1175 yaz_log(YLOG_WARN, "Failed to generate SOLR query, code=%d", status);
1179 r = xstrdup(wrbuf_cstr(wrb));
1182 solr_transform_close(sqlt);
1186 const char *client_get_facet_limit_local(struct client *cl,
1187 struct session_database *sdb,
1189 NMEM nmem, int *num, char ***values)
1191 const char *name = 0;
1192 const char *value = 0;
1193 for (; (name = facet_limits_get(cl->facet_limits, *l, &value)); (*l)++)
1195 struct setting *s = 0;
1197 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1199 const char *p = strchr(s->name + 3, ':');
1200 if (p && !strcmp(p + 1, name) && s->value)
1204 nmem_strsplit_escape2(nmem, ",", s->value, &cvalues,
1206 for (j = 0; j < cnum; j++)
1208 const char *cvalue = cvalues[j];
1209 while (*cvalue == ' ')
1211 if (!strncmp(cvalue, "local:", 6))
1213 const char *cp = cvalue + 6;
1216 nmem_strsplit_escape2(nmem, "|", value, values,
1219 return *cp ? cp : name;
1228 static int apply_limit(struct session_database *sdb,
1229 facet_limits_t facet_limits,
1230 WRBUF w_pqf, CCL_bibset ccl_map,
1231 struct conf_service *service)
1238 NMEM nmem_tmp = nmem_create();
1239 for (i = 0; (name = facet_limits_get(facet_limits, i, &value)); i++)
1241 struct setting *s = 0;
1242 nmem_reset(nmem_tmp);
1243 /* name="pz:limitmap:author" value="rpn:@attr 1=4|local:other" */
1244 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1246 const char *p = strchr(s->name + 3, ':');
1247 if (p && !strcmp(p + 1, name) && s->value)
1253 nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
1256 nmem_strsplit_escape2(nmem_tmp, ",", s->value, &cvalues,
1259 for (j = 0; ret == 0 && j < cnum; j++)
1261 const char *cvalue = cvalues[j];
1262 while (*cvalue == ' ')
1264 if (!strncmp(cvalue, "rpn:", 4))
1266 const char *pqf = cvalue + 4;
1267 wrbuf_puts(w_pqf, "@and ");
1268 wrbuf_puts(w_pqf, pqf);
1269 wrbuf_puts(w_pqf, " ");
1270 for (i = 0; i < num; i++)
1273 wrbuf_puts(w_pqf, "@or ");
1274 yaz_encode_pqf_term(w_pqf, values[i],
1278 else if (!strncmp(cvalue, "ccl:", 4))
1280 const char *ccl = cvalue + 4;
1281 WRBUF ccl_w = wrbuf_alloc();
1282 for (i = 0; i < num; i++)
1285 struct ccl_rpn_node *cn;
1286 wrbuf_rewind(ccl_w);
1287 wrbuf_puts(ccl_w, ccl);
1288 wrbuf_puts(ccl_w, "=\"");
1289 wrbuf_puts(ccl_w, values[i]);
1290 wrbuf_puts(ccl_w, "\"");
1292 cn = ccl_find_str(ccl_map, wrbuf_cstr(ccl_w),
1297 wrbuf_printf(w_pqf, "@and ");
1299 /* or multiple values.. could be bad if last
1300 CCL parse fails, but this is unlikely to
1303 wrbuf_printf(w_pqf, "@or ");
1304 ccl_pquery(w_pqf, cn);
1308 wrbuf_destroy(ccl_w);
1310 else if (!strncmp(cvalue, "local:", 6)) {
1315 yaz_log(YLOG_WARN, "Target %s: Bad limitmap '%s'",
1316 sdb->database->id, cvalue);
1317 ret = -1; /* bad limitmap */
1326 for (i = 0; i < service->num_metadata; i++)
1328 struct conf_metadata *md = service->metadata + i;
1329 if (!strcmp(md->name, name) && md->limitcluster)
1331 yaz_log(YLOG_LOG, "limitcluster in use for %s",
1336 if (i == service->num_metadata)
1338 yaz_log(YLOG_WARN, "Target %s: limit %s used, but no limitmap defined",
1339 (sdb->database ? sdb->database->id : "<no id>"), name);
1343 nmem_destroy(nmem_tmp);
1347 // Parse the query given the settings specific to this client
1348 // client variable same_search is set as below as well as returned:
1349 // 0 if query is OK but different from before
1350 // 1 if query is OK but same as before
1351 // return -1 on query error
1352 // return -2 on limit error
1353 int client_parse_query(struct client *cl, const char *query,
1354 facet_limits_t facet_limits)
1356 struct session *se = client_get_session(cl);
1357 struct conf_service *service = se->service;
1358 struct session_database *sdb = client_get_database(cl);
1359 struct ccl_rpn_node *cn;
1362 CCL_bibset ccl_map = prepare_cclmap(cl, service->ccl_bibset);
1363 const char *sru = session_setting_oneval(sdb, PZ_SRU);
1364 const char *pqf_prefix = session_setting_oneval(sdb, PZ_PQF_PREFIX);
1365 const char *pqf_strftime = session_setting_oneval(sdb, PZ_PQF_STRFTIME);
1366 const char *query_syntax = session_setting_oneval(sdb, PZ_QUERY_SYNTAX);
1374 w_ccl = wrbuf_alloc();
1375 wrbuf_puts(w_ccl, query);
1377 w_pqf = wrbuf_alloc();
1380 wrbuf_puts(w_pqf, pqf_prefix);
1381 wrbuf_puts(w_pqf, " ");
1384 if (apply_limit(sdb, facet_limits, w_pqf, ccl_map, service))
1386 ccl_qual_rm(&ccl_map);
1390 facet_limits_destroy(cl->facet_limits);
1391 cl->facet_limits = facet_limits_dup(facet_limits);
1393 yaz_log(YLOG_LOG, "Client %s: CCL query: %s limit: %s", client_get_id(cl), wrbuf_cstr(w_ccl), wrbuf_cstr(w_pqf));
1394 cn = ccl_find_str(ccl_map, wrbuf_cstr(w_ccl), &cerror, &cpos);
1395 ccl_qual_rm(&ccl_map);
1398 client_set_state(cl, Client_Error);
1399 session_log(se, YLOG_WARN, "Client %s: Failed to parse CCL query '%s'",
1402 wrbuf_destroy(w_ccl);
1403 wrbuf_destroy(w_pqf);
1406 wrbuf_destroy(w_ccl);
1408 if (!pqf_strftime || !*pqf_strftime)
1409 ccl_pquery(w_pqf, cn);
1412 time_t cur_time = time(0);
1413 struct tm *tm = localtime(&cur_time);
1415 const char *cp = tmp_str;
1417 /* see man strftime(3) for things .. In particular %% gets converted
1418 to %.. And That's our original query .. */
1419 strftime(tmp_str, sizeof(tmp_str)-1, pqf_strftime, tm);
1423 ccl_pquery(w_pqf, cn);
1425 wrbuf_putc(w_pqf, cp[0]);
1429 /* Compares query and limit with old one. If different we need to research */
1430 if (!cl->pquery || strcmp(cl->pquery, wrbuf_cstr(w_pqf)))
1433 session_log(se, YLOG_LOG, "Client %s: Re-search due query/limit change: %s to %s",
1434 client_get_id(cl), cl->pquery, wrbuf_cstr(w_pqf));
1436 cl->pquery = xstrdup(wrbuf_cstr(w_pqf));
1437 // return value is no longer used.
1439 // Need to (re)search
1442 wrbuf_destroy(w_pqf);
1444 xfree(cl->cqlquery);
1447 odr_out = odr_createmem(ODR_ENCODE);
1448 zquery = p_query_rpn(odr_out, cl->pquery);
1452 session_log(se, YLOG_WARN, "Invalid PQF query for Client %s: %s",
1453 client_get_id(cl), cl->pquery);
1458 session_log(se, YLOG_LOG, "PQF for Client %s: %s",
1459 client_get_id(cl), cl->pquery);
1461 /* Support for PQF on SRU targets. */
1462 if (strcmp(query_syntax, "pqf") != 0 && *sru)
1464 if (!strcmp(sru, "solr"))
1465 cl->cqlquery = make_solrquery(cl, zquery);
1467 cl->cqlquery = make_cqlquery(cl, zquery);
1471 session_log(se, YLOG_LOG, "Client %s native query: %s (%s)",
1472 client_get_id(cl), cl->cqlquery, sru);
1475 odr_destroy(odr_out);
1477 /* TODO FIX Not thread safe */
1480 // Initialize relevance structure with query terms
1481 se->relevance = relevance_create_ccl(se->service->charsets, cn,
1482 se->service->rank_cluster,
1483 se->service->rank_follow,
1484 se->service->rank_lead,
1485 se->service->rank_length);
1491 int client_parse_sort(struct client *cl, struct reclist_sortparms *sp)
1495 const char *sort_strategy_and_spec =
1496 get_strategy_plus_sort(cl, sp->name);
1497 int increasing = sp->increasing;
1498 if (sort_strategy_and_spec && strlen(sort_strategy_and_spec) < 40)
1500 char strategy[50], *p;
1501 strcpy(strategy, sort_strategy_and_spec);
1502 p = strchr(strategy, ':');
1505 // Split the string in two
1513 yaz_log(YLOG_LOG, "Client %s: applying sorting %s %s", client_get_id(cl), strategy, p);
1514 if (!cl->sort_strategy || strcmp(cl->sort_strategy, strategy))
1515 cl->same_search = 0;
1516 if (!cl->sort_criteria || strcmp(cl->sort_criteria, p))
1517 cl->same_search = 0;
1518 if (cl->same_search == 0) {
1519 xfree(cl->sort_strategy);
1520 cl->sort_strategy = xstrdup(strategy);
1521 xfree(cl->sort_criteria);
1522 cl->sort_criteria = xstrdup(p);
1526 yaz_log(YLOG_LOG, "Client %s: Invalid sort strategy and spec found %s", client_get_id(cl), sort_strategy_and_spec);
1527 xfree(cl->sort_strategy);
1528 cl->sort_strategy = 0;
1529 xfree(cl->sort_criteria);
1530 cl->sort_criteria = 0;
1533 yaz_log(YLOG_DEBUG, "Client %s: No sort strategy and spec found.", client_get_id(cl));
1534 xfree(cl->sort_strategy);
1535 cl->sort_strategy = 0;
1536 xfree(cl->sort_criteria);
1537 cl->sort_criteria = 0;
1541 return !cl->same_search;
1544 void client_set_session(struct client *cl, struct session *se)
1549 int client_is_active(struct client *cl)
1551 if (cl->connection && (cl->state == Client_Connecting ||
1552 cl->state == Client_Working))
1557 int client_is_active_preferred(struct client *cl)
1559 /* only count if this is a preferred target. */
1562 /* TODO No sure this the condition that Seb wants */
1563 if (cl->connection && (cl->state == Client_Connecting ||
1564 cl->state == Client_Working))
1569 Odr_int client_get_hits(struct client *cl)
1574 Odr_int client_get_approximation(struct client *cl)
1576 if (cl->record_offset > 0) {
1577 Odr_int approx = ((10 * cl->hits * (cl->record_offset - cl->filtered)) / cl->record_offset + 5) /10;
1578 yaz_log(YLOG_DEBUG, "%s: Approx: %lld * %d / %d = %lld ", client_get_id(cl), cl->hits, cl->record_offset - cl->filtered, cl->record_offset, approx);
1584 int client_get_num_records(struct client *cl)
1586 return cl->record_offset;
1589 int client_get_num_records_filtered(struct client *cl)
1591 return cl->filtered;
1594 void client_set_diagnostic(struct client *cl, int diagnostic,
1595 const char *message, const char *addinfo)
1597 cl->diagnostic = diagnostic;
1599 cl->message = xstrdup(message);
1603 cl->addinfo = xstrdup(addinfo);
1606 int client_get_diagnostic(struct client *cl, const char **message,
1607 const char **addinfo)
1610 *message = cl->message;
1612 *addinfo = cl->addinfo;
1613 return cl->diagnostic;
1616 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf)
1619 struct suggestions *suggestions = cl->suggestions;
1622 //yaz_log(YLOG_DEBUG, "No suggestions found");
1625 if (suggestions->passthrough) {
1626 yaz_log(YLOG_DEBUG, "Passthrough Suggestions: \n%s\n", suggestions->passthrough);
1627 return suggestions->passthrough;
1629 if (suggestions->num == 0) {
1633 for (idx = 0; idx < suggestions->num; idx++) {
1634 wrbuf_printf(wrbuf, "<suggest term=\"%s\"", suggestions->suggest[idx]);
1635 if (suggestions->misspelled[idx] && suggestions->misspelled[idx]) {
1636 wrbuf_puts(wrbuf, suggestions->misspelled[idx]);
1637 wrbuf_puts(wrbuf, "</suggest>\n");
1640 wrbuf_puts(wrbuf, "/>\n");
1643 return wrbuf_cstr(wrbuf);
1647 void client_set_database(struct client *cl, struct session_database *db)
1652 const char *client_get_id(struct client *cl)
1657 int client_get_maxrecs(struct client *cl)
1662 void client_set_preferred(struct client *cl, int v)
1668 struct suggestions* client_suggestions_create(const char* suggestions_string)
1672 struct suggestions *suggestions;
1673 if (suggestions_string == 0 || suggestions_string[0] == 0 )
1675 nmem = nmem_create();
1676 suggestions = nmem_malloc(nmem, sizeof(*suggestions));
1677 yaz_log(YLOG_DEBUG, "client target suggestions: %s.", suggestions_string);
1679 suggestions->nmem = nmem;
1680 suggestions->num = 0;
1681 suggestions->misspelled = 0;
1682 suggestions->suggest = 0;
1683 suggestions->passthrough = nmem_strdup_null(nmem, suggestions_string);
1685 if (suggestions_string)
1686 nmem_strsplit_escape2(suggestions->nmem, "\n", suggestions_string, &suggestions->suggest,
1687 &suggestions->num, 1, '\\', 0);
1688 /* Set up misspelled array */
1689 suggestions->misspelled = (char **) nmem_malloc(nmem, suggestions->num * sizeof(**suggestions->misspelled));
1690 /* replace = with \0 .. for each item */
1691 for (i = 0; i < suggestions->num; i++)
1693 char *cp = strchr(suggestions->suggest[i], '=');
1696 suggestions->misspelled[i] = cp+1;
1702 static void client_suggestions_destroy(struct client *cl)
1704 NMEM nmem = cl->suggestions->nmem;
1705 cl->suggestions = 0;
1709 int client_test_sort_order(struct client *cl, struct reclist_sortparms *sp)
1711 //TODO implement correctly.
1717 * c-file-style: "Stroustrup"
1718 * indent-tabs-mode: nil
1720 * vim: shiftwidth=4 tabstop=8 expandtab