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",
90 delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), clients);
94 int clients_count(void)
99 int clients_count_total(void)
104 yaz_mutex_enter(g_mutex);
105 total = no_clients_total;
106 yaz_mutex_leave(g_mutex);
111 /** \brief Represents client state for a connection to one search target */
113 struct session_database *database;
114 struct connection *connection;
115 struct session *session;
116 char *pquery; // Current search
117 char *cqlquery; // used for SRU targets only
118 char *addinfo; // diagnostic info for most resent error
122 int filtered; // When using local:, this will count the number of filtered records.
128 struct suggestions *suggestions;
129 enum client_state state;
130 struct show_raw *show_raw;
131 ZOOM_resultset resultset;
135 facet_limits_t facet_limits;
150 int active; // whether this request has been sent to the server
156 void (*error_handler)(void *data, const char *addinfo);
157 void (*record_handler)(void *data, const char *buf, size_t sz);
159 struct show_raw *next;
162 static const char *client_states[] = {
168 "Client_Disconnected"
171 const char *client_get_state_str(struct client *cl)
173 return client_states[cl->state];
176 enum client_state client_get_state(struct client *cl)
181 void client_set_state_nb(struct client *cl, enum client_state st)
186 void client_set_state(struct client *cl, enum client_state st)
189 if (client_is_active(cl))
192 /* If client is going from being active to inactive and all clients
193 are now idle we fire a watch for the session . The assumption is
194 that session is not mutex locked if client is already active */
195 if (was_active && !client_is_active(cl) && cl->session)
198 int no_active = session_active_clients(cl->session);
199 yaz_log(YLOG_DEBUG, "%s: releasing watches on zero active: %d",
200 client_get_id(cl), no_active);
201 if (no_active == 0) {
202 session_alert_watch(cl->session, SESSION_WATCH_SHOW);
203 session_alert_watch(cl->session, SESSION_WATCH_BYTARGET);
204 session_alert_watch(cl->session, SESSION_WATCH_TERMLIST);
205 session_alert_watch(cl->session, SESSION_WATCH_SHOW_PREF);
210 static void client_show_raw_error(struct client *cl, const char *addinfo);
212 struct connection *client_get_connection(struct client *cl)
214 return cl->connection;
217 struct session_database *client_get_database(struct client *cl)
222 struct session *client_get_session(struct client *cl)
227 static void client_send_raw_present(struct client *cl);
228 static int nativesyntax_to_type(const char *s, char *type, ZOOM_record rec);
230 static void client_show_immediate(
231 ZOOM_resultset resultset, struct session_database *sdb, int position,
233 void (*error_handler)(void *data, const char *addinfo),
234 void (*record_handler)(void *data, const char *buf, size_t sz),
236 const char *nativesyntax)
245 error_handler(data, "no resultset");
248 rec = ZOOM_resultset_record_immediate(resultset, position-1);
251 error_handler(data, "no record");
254 nativesyntax_to_type(nativesyntax, type, rec);
255 buf = ZOOM_record_get(rec, type, &len);
258 error_handler(data, "no record");
261 record_handler(data, buf, len);
265 int client_show_raw_begin(struct client *cl, int position,
266 const char *syntax, const char *esn,
268 void (*error_handler)(void *data, const char *addinfo),
269 void (*record_handler)(void *data, const char *buf,
272 const char *nativesyntax)
277 nativesyntax = "raw";
280 struct session_database *sdb = client_get_database(cl);
281 nativesyntax = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
285 if (syntax == 0 && esn == 0)
286 client_show_immediate(cl->resultset, client_get_database(cl),
288 error_handler, record_handler,
289 binary, nativesyntax);
292 struct show_raw *rr, **rrp;
298 rr = xmalloc(sizeof(*rr));
299 rr->position = position;
302 rr->error_handler = error_handler;
303 rr->record_handler = record_handler;
306 rr->syntax = xstrdup(syntax);
310 rr->esn = xstrdup(esn);
314 assert(nativesyntax);
315 rr->nativesyntax = xstrdup(nativesyntax);
319 for (rrp = &cl->show_raw; *rrp; rrp = &(*rrp)->next)
323 if (cl->state == Client_Failed)
325 client_show_raw_error(cl, "client failed");
327 else if (cl->state == Client_Disconnected)
329 client_show_raw_error(cl, "client disconnected");
333 client_send_raw_present(cl);
339 static void client_show_raw_delete(struct show_raw *r)
343 xfree(r->nativesyntax);
347 void client_show_raw_remove(struct client *cl, void *data)
349 struct show_raw *rr = data;
350 struct show_raw **rrp = &cl->show_raw;
356 client_show_raw_delete(rr);
360 static void client_show_raw_dequeue(struct client *cl)
362 struct show_raw *rr = cl->show_raw;
364 cl->show_raw = rr->next;
365 client_show_raw_delete(rr);
368 static void client_show_raw_error(struct client *cl, const char *addinfo)
372 cl->show_raw->error_handler(cl->show_raw->data, addinfo);
373 client_show_raw_dequeue(cl);
377 static void client_send_raw_present(struct client *cl)
379 struct session_database *sdb = client_get_database(cl);
380 struct connection *co = client_get_connection(cl);
381 ZOOM_resultset set = cl->resultset;
383 int offset = cl->show_raw->position;
384 const char *syntax = 0;
385 const char *elements = 0;
387 assert(cl->show_raw);
390 yaz_log(YLOG_DEBUG, "%s: trying to present %d record(s) from %d",
391 client_get_id(cl), 1, offset);
393 if (cl->show_raw->syntax)
394 syntax = cl->show_raw->syntax;
396 syntax = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
397 ZOOM_resultset_option_set(set, "preferredRecordSyntax", syntax);
399 if (cl->show_raw->esn)
400 elements = cl->show_raw->esn;
402 elements = session_setting_oneval(sdb, PZ_ELEMENTS);
403 if (elements && *elements)
404 ZOOM_resultset_option_set(set, "elementSetName", elements);
406 ZOOM_resultset_records(set, 0, offset-1, 1);
407 cl->show_raw->active = 1;
409 connection_continue(co);
412 static int nativesyntax_to_type(const char *s, char *type,
417 if (!strncmp(s, "iso2709", 7))
419 const char *cp = strchr(s, ';');
420 yaz_snprintf(type, 80, "xml; charset=%s", cp ? cp+1 : "marc-8s");
422 else if (!strncmp(s, "txml", 4))
424 const char *cp = strchr(s, ';');
425 yaz_snprintf(type, 80, "txml; charset=%s", cp ? cp+1 : "marc-8s");
427 else /* pass verbatim to ZOOM - including "xml" */
431 else /* attempt to deduce structure */
433 const char *syntax = ZOOM_record_get(rec, "syntax", NULL);
436 if (!strcmp(syntax, "XML"))
441 else if (!strcmp(syntax, "USmarc") || !strcmp(syntax, "MARC21"))
443 strcpy(type, "xml; charset=marc8-s");
453 * TODO Consider thread safety!!!
456 static void client_report_facets(struct client *cl, ZOOM_resultset rs)
458 struct session_database *sdb = client_get_database(cl);
459 ZOOM_facet_field *facets = ZOOM_resultset_facets(rs);
463 struct session *se = client_get_session(cl);
464 int facet_num = ZOOM_resultset_facets_size(rs);
467 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
469 const char *p = strchr(s->name + 3, ':');
470 if (p && p[1] && s->value && s->value[0])
473 p++; /* p now holds logical facet name */
474 for (facet_idx = 0; facet_idx < facet_num; facet_idx++)
476 const char *native_name =
477 ZOOM_facet_field_name(facets[facet_idx]);
478 if (native_name && !strcmp(s->value, native_name))
482 ZOOM_facet_field_term_count(facets[facet_idx]);
483 for (term_idx = 0; term_idx < term_num; term_idx++ )
487 ZOOM_facet_field_get_term(facets[facet_idx],
490 add_facet(se, p, term, freq);
500 static void ingest_raw_record(struct client *cl, ZOOM_record rec)
506 nativesyntax_to_type(cl->show_raw->nativesyntax, type, rec);
507 buf = ZOOM_record_get(rec, type, &len);
508 cl->show_raw->record_handler(cl->show_raw->data, buf, len);
509 client_show_raw_dequeue(cl);
512 void client_check_preferred_watch(struct client *cl)
514 struct session *se = cl->session;
515 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: %s ", client_get_id(cl));
519 /* TODO possible threading issue. Session can have been destroyed */
520 if (session_is_preferred_clients_ready(se)) {
521 session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
524 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: Still locked on preferred targets.");
529 yaz_log(YLOG_WARN, "client_check_preferred_watch: %s. No session!", client_get_id(cl));
533 struct suggestions* client_suggestions_create(const char* suggestions_string);
534 static void client_suggestions_destroy(struct client *cl);
536 void client_search_response(struct client *cl)
538 struct connection *co = cl->connection;
539 ZOOM_connection link = connection_get_link(co);
540 ZOOM_resultset resultset = cl->resultset;
542 const char *error, *addinfo = 0;
544 if (ZOOM_connection_error(link, &error, &addinfo))
547 client_set_state(cl, Client_Error);
548 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
549 error, addinfo, client_get_id(cl));
553 client_report_facets(cl, resultset);
554 cl->record_offset = cl->startrecs;
555 cl->hits = ZOOM_resultset_size(resultset);
556 yaz_log(YLOG_DEBUG, "client_search_response: hits " ODR_INT_PRINTF,
559 client_suggestions_destroy(cl);
561 client_suggestions_create(ZOOM_resultset_option_get(
562 resultset, "suggestions"));
566 void client_got_records(struct client *cl)
568 struct session *se = cl->session;
571 if (reclist_get_num_records(se->reclist) > 0)
574 session_alert_watch(se, SESSION_WATCH_SHOW);
575 session_alert_watch(se, SESSION_WATCH_BYTARGET);
576 session_alert_watch(se, SESSION_WATCH_TERMLIST);
577 session_alert_watch(se, SESSION_WATCH_RECORD);
583 static void client_record_ingest(struct client *cl)
585 const char *msg, *addinfo;
587 ZOOM_resultset resultset = cl->resultset;
588 struct session *se = client_get_session(cl);
590 if ((rec = ZOOM_resultset_record_immediate(resultset, cl->record_offset)))
592 int offset = ++cl->record_offset;
593 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, int *got_records)
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);
687 int client_reingest(struct client *cl)
689 int i = cl->startrecs;
690 int to = cl->record_offset;
693 cl->record_offset = i;
695 client_record_ingest(cl);
699 static void client_set_facets_request(struct client *cl, ZOOM_connection link)
701 struct session_database *sdb = client_get_database(cl);
703 WRBUF w = wrbuf_alloc();
707 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
709 const char *p = strchr(s->name + 3, ':');
712 yaz_log(YLOG_WARN, "Malformed facetmap name: %s", s->name);
714 else if (s->value && s->value[0])
716 wrbuf_puts(w, "@attr 1=");
717 yaz_encode_pqf_term(w, s->value, strlen(s->value));
722 yaz_log(YLOG_DEBUG, "using facets str: %s", wrbuf_cstr(w));
723 ZOOM_connection_option_set(link, "facets",
724 wrbuf_len(w) ? wrbuf_cstr(w) : 0);
728 int client_has_facet(struct client *cl, const char *name)
730 struct session_database *sdb = client_get_database(cl);
733 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
735 const char *p = strchr(s->name + 3, ':');
736 if (p && !strcmp(name, p + 1))
742 static const char *get_strategy_plus_sort(struct client *l, const char *field)
744 struct session_database *sdb = client_get_database(l);
747 const char *strategy_plus_sort = 0;
749 for (s = sdb->settings[PZ_SORTMAP]; s; s = s->next)
751 char *p = strchr(s->name + 3, ':');
754 yaz_log(YLOG_WARN, "Malformed sortmap name: %s", s->name);
758 if (!strcmp(p, field))
760 strategy_plus_sort = s->value;
764 return strategy_plus_sort;
767 void client_update_show_stat(struct client *cl, int cmd)
770 cl->show_stat_no = 0;
775 int client_fetch_more(struct client *cl)
777 struct session_database *sdb = client_get_database(cl);
782 str = session_setting_oneval(sdb, PZ_EXTENDRECS);
786 extend_recs = atoi(str);
788 yaz_log(YLOG_LOG, "cl=%s show_stat_no=%d got=%d",
789 client_get_id(cl), cl->show_stat_no, cl->record_offset);
790 if (cl->show_stat_no < cl->record_offset)
792 yaz_log(YLOG_LOG, "cl=%s Trying to fetch more", client_get_id(cl));
794 if (extend_recs > cl->hits)
795 extend_recs = cl->hits;
797 number = extend_recs - cl->record_offset;
800 ZOOM_resultset set = cl->resultset;
801 struct connection *co = client_get_connection(cl);
803 str = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
804 ZOOM_resultset_option_set(set, "preferredRecordSyntax", str);
805 str = session_setting_oneval(sdb, PZ_ELEMENTS);
807 ZOOM_resultset_option_set(set, "elementSetName", str);
809 ZOOM_resultset_records(set, 0, cl->record_offset, number);
810 client_set_state(cl, Client_Working);
811 connection_continue(co);
816 yaz_log(YLOG_LOG, "cl=%s. OK no more in total set", client_get_id(cl));
821 int client_parse_init(struct client *cl, int same_search)
823 cl->same_search = same_search;
828 * TODO consider how to extend the range
830 int client_parse_range(struct client *cl, const char *startrecs,
833 if (maxrecs && atoi(maxrecs) != cl->maxrecs)
836 cl->maxrecs = atoi(maxrecs);
839 if (startrecs && atoi(startrecs) != cl->startrecs)
842 cl->startrecs = atoi(startrecs);
848 int client_start_search(struct client *cl)
850 struct session_database *sdb = client_get_database(cl);
851 struct connection *co = 0;
852 ZOOM_connection link = 0;
853 struct session *se = client_get_session(cl);
855 const char *opt_piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK);
856 const char *opt_queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING);
857 const char *opt_elements = session_setting_oneval(sdb, PZ_ELEMENTS);
858 const char *opt_requestsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
859 const char *opt_maxrecs = session_setting_oneval(sdb, PZ_MAXRECS);
860 const char *opt_sru = session_setting_oneval(sdb, PZ_SRU);
861 const char *opt_sort = session_setting_oneval(sdb, PZ_SORT);
862 const char *opt_preferred = session_setting_oneval(sdb, PZ_PREFERRED);
863 const char *extra_args = session_setting_oneval(sdb, PZ_EXTRA_ARGS);
864 const char *opt_present_chunk = session_setting_oneval(sdb, PZ_PRESENT_CHUNK);
866 char maxrecs_str[24], startrecs_str[24], present_chunk_str[24];
868 int present_chunk = 20; // Default chunk size
869 int rc_prep_connection;
872 yaz_gettimeofday(&tval);
875 if (opt_present_chunk && strcmp(opt_present_chunk,"")) {
876 present_chunk = atoi(opt_present_chunk);
877 yaz_log(YLOG_DEBUG, "Present chunk set to %d", present_chunk);
880 client_prep_connection(cl, se->service->z3950_operation_timeout,
881 se->service->z3950_session_timeout,
882 se->service->server->iochan_man,
884 /* Nothing has changed and we already have a result */
885 if (cl->same_search == 1 && rc_prep_connection == 2)
887 session_log(se, YLOG_LOG, "client %s REUSE result", client_get_id(cl));
888 return client_reingest(cl);
890 else if (!rc_prep_connection)
892 session_log(se, YLOG_LOG, "client %s FAILED to search: No connection.", client_get_id(cl));
895 co = client_get_connection(cl);
897 link = connection_get_link(co);
900 session_log(se, YLOG_LOG, "client %s NEW search", client_get_id(cl));
905 if (extra_args && *extra_args)
906 ZOOM_connection_option_set(link, "extraArgs", extra_args);
909 cl->preferred = atoi(opt_preferred);
911 yaz_log(YLOG_LOG, "Target %s has preferred status: %d",
912 client_get_id(cl), cl->preferred);
916 ZOOM_connection_option_set(link, "piggyback", opt_piggyback);
918 ZOOM_connection_option_set(link, "piggyback", "1");
920 ZOOM_connection_option_set(link, "rpnCharset", opt_queryenc);
921 if (*opt_sru && *opt_elements)
922 ZOOM_connection_option_set(link, "schema", opt_elements);
923 else if (*opt_elements)
924 ZOOM_connection_option_set(link, "elementSetName", opt_elements);
926 ZOOM_connection_option_set(link, "preferredRecordSyntax", opt_requestsyn);
928 if (opt_maxrecs && *opt_maxrecs)
930 cl->maxrecs = atoi(opt_maxrecs);
933 /* convert back to string representation used in ZOOM API */
934 sprintf(maxrecs_str, "%d", cl->maxrecs);
935 ZOOM_connection_option_set(link, "count", maxrecs_str);
937 /* A present_chunk less than 1 will disable chunking. */
938 if (present_chunk > 0 && cl->maxrecs > present_chunk) {
939 sprintf(present_chunk_str, "%d", present_chunk);
940 ZOOM_connection_option_set(link, "presentChunk", present_chunk_str);
941 yaz_log(YLOG_DEBUG, "Present chunk set to %s", present_chunk_str);
944 ZOOM_connection_option_set(link, "presentChunk", maxrecs_str);
945 yaz_log(YLOG_DEBUG, "Present chunk set to %s (maxrecs)", maxrecs_str);
947 sprintf(startrecs_str, "%d", cl->startrecs);
948 ZOOM_connection_option_set(link, "start", startrecs_str);
950 /* TODO Verify does it break something for CQL targets(non-SOLR) ? */
951 /* facets definition is in PQF */
952 client_set_facets_request(cl, link);
954 query = ZOOM_query_create();
957 yaz_log(YLOG_LOG, "Client %s: Search CQL: %s", client_get_id(cl),
959 ZOOM_query_cql(query, cl->cqlquery);
961 ZOOM_query_sortby(query, opt_sort);
965 yaz_log(YLOG_LOG, "Client %s: Search PQF: %s", client_get_id(cl),
968 ZOOM_query_prefix(query, cl->pquery);
970 if (cl->sort_strategy && cl->sort_criteria) {
971 yaz_log(YLOG_LOG, "Client %s: "
972 "Set ZOOM sort strategy and criteria: %s %s",
973 client_get_id(cl), cl->sort_strategy, cl->sort_criteria);
974 ZOOM_query_sortby2(query, cl->sort_strategy, cl->sort_criteria);
977 yaz_log(YLOG_DEBUG,"Client %s: Starting search", client_get_id(cl));
978 client_set_state(cl, Client_Working);
980 cl->record_offset = 0;
981 rs = ZOOM_connection_search(link, query);
982 ZOOM_query_destroy(query);
983 ZOOM_resultset_destroy(cl->resultset);
985 connection_continue(co);
989 struct client *client_create(const char *id)
991 struct client *cl = xmalloc(sizeof(*cl));
1002 cl->record_offset = 0;
1005 cl->state = Client_Disconnected;
1008 cl->suggestions = 0;
1010 pazpar2_mutex_create(&cl->mutex, "client");
1013 cl->facet_limits = 0;
1014 cl->sort_strategy = 0;
1015 cl->sort_criteria = 0;
1017 cl->id = xstrdup(id);
1023 void client_lock(struct client *c)
1025 yaz_mutex_enter(c->mutex);
1028 void client_unlock(struct client *c)
1030 yaz_mutex_leave(c->mutex);
1033 void client_incref(struct client *c)
1035 pazpar2_incref(&c->ref_count, c->mutex);
1036 yaz_log(YLOG_DEBUG, "client_incref c=%p %s cnt=%d",
1037 c, client_get_id(c), c->ref_count);
1040 int client_destroy(struct client *c)
1044 yaz_log(YLOG_DEBUG, "client_destroy c=%p %s cnt=%d",
1045 c, client_get_id(c), c->ref_count);
1046 if (!pazpar2_decref(&c->ref_count, c->mutex))
1057 xfree(c->sort_strategy);
1058 xfree(c->sort_criteria);
1059 assert(!c->connection);
1060 facet_limits_destroy(c->facet_limits);
1064 ZOOM_resultset_destroy(c->resultset);
1066 yaz_mutex_destroy(&c->mutex);
1075 void client_set_connection(struct client *cl, struct connection *con)
1078 ZOOM_resultset_release(cl->resultset);
1081 assert(cl->connection == 0);
1082 cl->connection = con;
1087 cl->connection = con;
1092 void client_disconnect(struct client *cl)
1094 if (cl->state != Client_Idle)
1095 client_set_state(cl, Client_Disconnected);
1096 client_set_connection(cl, 0);
1099 // Initialize CCL map for a target
1100 static CCL_bibset prepare_cclmap(struct client *cl, CCL_bibset base_bibset)
1102 struct session_database *sdb = client_get_database(cl);
1109 res = ccl_qual_dup(base_bibset);
1111 res = ccl_qual_mk();
1112 for (s = sdb->settings[PZ_CCLMAP]; s; s = s->next)
1114 const char *addinfo = 0;
1115 char *p = strchr(s->name + 3, ':');
1118 WRBUF w = wrbuf_alloc();
1119 wrbuf_printf(w, "Malformed cclmap. name=%s", s->name);
1120 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1121 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1122 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1124 client_set_state_nb(cl, Client_Error);
1130 if (ccl_qual_fitem2(res, s->value, p, &addinfo))
1132 WRBUF w = wrbuf_alloc();
1134 wrbuf_printf(w, "Malformed cclmap. name=%s: value=%s (%s)",
1135 s->name, p, addinfo);
1136 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1137 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1138 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1140 client_set_state_nb(cl, Client_Error);
1149 // returns a xmalloced CQL query corresponding to the pquery in client
1150 static char *make_cqlquery(struct client *cl, Z_RPNQuery *zquery)
1152 cql_transform_t cqlt = cql_transform_create();
1154 WRBUF wrb = wrbuf_alloc();
1157 if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
1159 yaz_log(YLOG_WARN, "Failed to generate CQL query, code=%d", status);
1163 r = xstrdup(wrbuf_cstr(wrb));
1166 cql_transform_close(cqlt);
1170 // returns a xmalloced SOLR query corresponding to the pquery in client
1171 // TODO Could prob. be merge with the similar make_cqlquery
1172 static char *make_solrquery(struct client *cl, Z_RPNQuery *zquery)
1174 solr_transform_t sqlt = solr_transform_create();
1176 WRBUF wrb = wrbuf_alloc();
1179 if ((status = solr_transform_rpn2solr_wrbuf(sqlt, wrb, zquery)))
1181 yaz_log(YLOG_WARN, "Failed to generate SOLR query, code=%d", status);
1185 r = xstrdup(wrbuf_cstr(wrb));
1188 solr_transform_close(sqlt);
1192 const char *client_get_facet_limit_local(struct client *cl,
1193 struct session_database *sdb,
1195 NMEM nmem, int *num, char ***values)
1197 const char *name = 0;
1198 const char *value = 0;
1199 for (; (name = facet_limits_get(cl->facet_limits, *l, &value)); (*l)++)
1201 struct setting *s = 0;
1203 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1205 const char *p = strchr(s->name + 3, ':');
1206 if (p && !strcmp(p + 1, name) && s->value)
1210 nmem_strsplit_escape2(nmem, ",", s->value, &cvalues,
1212 for (j = 0; j < cnum; j++)
1214 const char *cvalue = cvalues[j];
1215 while (*cvalue == ' ')
1217 if (!strncmp(cvalue, "local:", 6))
1219 const char *cp = cvalue + 6;
1222 nmem_strsplit_escape2(nmem, "|", value, values,
1225 return *cp ? cp : name;
1234 static int apply_limit(struct session_database *sdb,
1235 facet_limits_t facet_limits,
1236 WRBUF w_pqf, CCL_bibset ccl_map,
1237 struct conf_service *service)
1244 NMEM nmem_tmp = nmem_create();
1245 for (i = 0; (name = facet_limits_get(facet_limits, i, &value)); i++)
1247 struct setting *s = 0;
1248 nmem_reset(nmem_tmp);
1249 /* name="pz:limitmap:author" value="rpn:@attr 1=4|local:other" */
1250 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1252 const char *p = strchr(s->name + 3, ':');
1253 if (p && !strcmp(p + 1, name) && s->value)
1259 nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
1262 nmem_strsplit_escape2(nmem_tmp, ",", s->value, &cvalues,
1265 for (j = 0; ret == 0 && j < cnum; j++)
1267 const char *cvalue = cvalues[j];
1268 while (*cvalue == ' ')
1270 if (!strncmp(cvalue, "rpn:", 4))
1272 const char *pqf = cvalue + 4;
1273 wrbuf_puts(w_pqf, "@and ");
1274 wrbuf_puts(w_pqf, pqf);
1275 wrbuf_puts(w_pqf, " ");
1276 for (i = 0; i < num; i++)
1279 wrbuf_puts(w_pqf, "@or ");
1280 yaz_encode_pqf_term(w_pqf, values[i],
1284 else if (!strncmp(cvalue, "ccl:", 4))
1286 const char *ccl = cvalue + 4;
1287 WRBUF ccl_w = wrbuf_alloc();
1288 for (i = 0; i < num; i++)
1291 struct ccl_rpn_node *cn;
1292 wrbuf_rewind(ccl_w);
1293 wrbuf_puts(ccl_w, ccl);
1294 wrbuf_puts(ccl_w, "=\"");
1295 wrbuf_puts(ccl_w, values[i]);
1296 wrbuf_puts(ccl_w, "\"");
1298 cn = ccl_find_str(ccl_map, wrbuf_cstr(ccl_w),
1303 wrbuf_printf(w_pqf, "@and ");
1305 /* or multiple values.. could be bad if last
1306 CCL parse fails, but this is unlikely to
1309 wrbuf_printf(w_pqf, "@or ");
1310 ccl_pquery(w_pqf, cn);
1314 wrbuf_destroy(ccl_w);
1316 else if (!strncmp(cvalue, "local:", 6)) {
1321 yaz_log(YLOG_WARN, "Target %s: Bad limitmap '%s'",
1322 sdb->database->id, cvalue);
1323 ret = -1; /* bad limitmap */
1332 for (i = 0; i < service->num_metadata; i++)
1334 struct conf_metadata *md = service->metadata + i;
1335 if (!strcmp(md->name, name) && md->limitcluster)
1337 yaz_log(YLOG_LOG, "limitcluster in use for %s",
1342 if (i == service->num_metadata)
1344 yaz_log(YLOG_WARN, "Target %s: limit %s used, but no limitmap defined",
1345 (sdb->database ? sdb->database->id : "<no id>"), name);
1349 nmem_destroy(nmem_tmp);
1353 // Parse the query given the settings specific to this client
1354 // client variable same_search is set as below as well as returned:
1355 // 0 if query is OK but different from before
1356 // 1 if query is OK but same as before
1357 // return -1 on query error
1358 // return -2 on limit error
1359 int client_parse_query(struct client *cl, const char *query,
1360 facet_limits_t facet_limits)
1362 struct session *se = client_get_session(cl);
1363 struct conf_service *service = se->service;
1364 struct session_database *sdb = client_get_database(cl);
1365 struct ccl_rpn_node *cn;
1368 CCL_bibset ccl_map = prepare_cclmap(cl, service->ccl_bibset);
1369 const char *sru = session_setting_oneval(sdb, PZ_SRU);
1370 const char *pqf_prefix = session_setting_oneval(sdb, PZ_PQF_PREFIX);
1371 const char *pqf_strftime = session_setting_oneval(sdb, PZ_PQF_STRFTIME);
1372 const char *query_syntax = session_setting_oneval(sdb, PZ_QUERY_SYNTAX);
1380 w_ccl = wrbuf_alloc();
1381 wrbuf_puts(w_ccl, query);
1383 w_pqf = wrbuf_alloc();
1386 wrbuf_puts(w_pqf, pqf_prefix);
1387 wrbuf_puts(w_pqf, " ");
1390 if (apply_limit(sdb, facet_limits, w_pqf, ccl_map, service))
1392 ccl_qual_rm(&ccl_map);
1396 facet_limits_destroy(cl->facet_limits);
1397 cl->facet_limits = facet_limits_dup(facet_limits);
1399 yaz_log(YLOG_LOG, "Client %s: CCL query: %s limit: %s",
1400 client_get_id(cl), wrbuf_cstr(w_ccl), wrbuf_cstr(w_pqf));
1401 cn = ccl_find_str(ccl_map, wrbuf_cstr(w_ccl), &cerror, &cpos);
1402 ccl_qual_rm(&ccl_map);
1405 client_set_state(cl, Client_Error);
1406 session_log(se, YLOG_WARN, "Client %s: Failed to parse CCL query '%s'",
1409 wrbuf_destroy(w_ccl);
1410 wrbuf_destroy(w_pqf);
1413 wrbuf_destroy(w_ccl);
1415 if (!pqf_strftime || !*pqf_strftime)
1416 ccl_pquery(w_pqf, cn);
1419 time_t cur_time = time(0);
1420 struct tm *tm = localtime(&cur_time);
1422 const char *cp = tmp_str;
1424 /* see man strftime(3) for things .. In particular %% gets converted
1425 to %.. And That's our original query .. */
1426 strftime(tmp_str, sizeof(tmp_str)-1, pqf_strftime, tm);
1430 ccl_pquery(w_pqf, cn);
1432 wrbuf_putc(w_pqf, cp[0]);
1436 /* Compares query and limit with old one. If different we need to research */
1437 if (!cl->pquery || strcmp(cl->pquery, wrbuf_cstr(w_pqf)))
1440 session_log(se, YLOG_LOG, "Client %s: "
1441 "Re-search due query/limit change: %s to %s",
1442 client_get_id(cl), cl->pquery, wrbuf_cstr(w_pqf));
1444 cl->pquery = xstrdup(wrbuf_cstr(w_pqf));
1445 // return value is no longer used.
1447 // Need to (re)search
1450 wrbuf_destroy(w_pqf);
1452 xfree(cl->cqlquery);
1455 odr_out = odr_createmem(ODR_ENCODE);
1456 zquery = p_query_rpn(odr_out, cl->pquery);
1460 session_log(se, YLOG_WARN, "Invalid PQF query for Client %s: %s",
1461 client_get_id(cl), cl->pquery);
1466 session_log(se, YLOG_LOG, "PQF for Client %s: %s",
1467 client_get_id(cl), cl->pquery);
1469 /* Support for PQF on SRU targets. */
1470 if (strcmp(query_syntax, "pqf") != 0 && *sru)
1472 if (!strcmp(sru, "solr"))
1473 cl->cqlquery = make_solrquery(cl, zquery);
1475 cl->cqlquery = make_cqlquery(cl, zquery);
1479 session_log(se, YLOG_LOG, "Client %s native query: %s (%s)",
1480 client_get_id(cl), cl->cqlquery, sru);
1483 odr_destroy(odr_out);
1485 /* TODO FIX Not thread safe */
1488 // Initialize relevance structure with query terms
1489 se->relevance = relevance_create_ccl(se->service->charsets, cn,
1490 se->service->rank_cluster,
1491 se->service->rank_follow,
1492 se->service->rank_lead,
1493 se->service->rank_length);
1499 int client_parse_sort(struct client *cl, struct reclist_sortparms *sp)
1503 const char *sort_strategy_and_spec =
1504 get_strategy_plus_sort(cl, sp->name);
1505 int increasing = sp->increasing;
1506 if (sort_strategy_and_spec && strlen(sort_strategy_and_spec) < 40)
1508 char strategy[50], *p;
1509 strcpy(strategy, sort_strategy_and_spec);
1510 p = strchr(strategy, ':');
1513 // Split the string in two
1521 yaz_log(YLOG_LOG, "Client %s: "
1522 "applying sorting %s %s", client_get_id(cl),
1524 if (!cl->sort_strategy || strcmp(cl->sort_strategy, strategy))
1525 cl->same_search = 0;
1526 if (!cl->sort_criteria || strcmp(cl->sort_criteria, p))
1527 cl->same_search = 0;
1528 if (cl->same_search == 0) {
1529 xfree(cl->sort_strategy);
1530 cl->sort_strategy = xstrdup(strategy);
1531 xfree(cl->sort_criteria);
1532 cl->sort_criteria = xstrdup(p);
1536 yaz_log(YLOG_LOG, "Client %s: "
1537 "Invalid sort strategy and spec found %s",
1538 client_get_id(cl), sort_strategy_and_spec);
1539 xfree(cl->sort_strategy);
1540 cl->sort_strategy = 0;
1541 xfree(cl->sort_criteria);
1542 cl->sort_criteria = 0;
1547 yaz_log(YLOG_DEBUG, "Client %s: "
1548 "No sort strategy and spec found.", client_get_id(cl));
1549 xfree(cl->sort_strategy);
1550 cl->sort_strategy = 0;
1551 xfree(cl->sort_criteria);
1552 cl->sort_criteria = 0;
1556 return !cl->same_search;
1559 void client_set_session(struct client *cl, struct session *se)
1564 int client_is_active(struct client *cl)
1566 if (cl->connection && (cl->state == Client_Connecting ||
1567 cl->state == Client_Working))
1572 int client_is_active_preferred(struct client *cl)
1574 /* only count if this is a preferred target. */
1577 /* TODO No sure this the condition that Seb wants */
1578 if (cl->connection && (cl->state == Client_Connecting ||
1579 cl->state == Client_Working))
1584 Odr_int client_get_hits(struct client *cl)
1589 Odr_int client_get_approximation(struct client *cl)
1591 if (cl->record_offset > 0)
1593 Odr_int approx = ((10 * cl->hits * (cl->record_offset - cl->filtered))
1594 / cl->record_offset + 5) /10;
1595 yaz_log(YLOG_DEBUG, "%s: Approx: %lld * %d / %d = %lld ",
1596 client_get_id(cl), cl->hits,
1597 cl->record_offset - cl->filtered, cl->record_offset, approx);
1603 int client_get_num_records(struct client *cl)
1605 return cl->record_offset;
1608 int client_get_num_records_filtered(struct client *cl)
1610 return cl->filtered;
1613 void client_set_diagnostic(struct client *cl, int diagnostic,
1614 const char *message, const char *addinfo)
1616 cl->diagnostic = diagnostic;
1618 cl->message = xstrdup(message);
1622 cl->addinfo = xstrdup(addinfo);
1625 int client_get_diagnostic(struct client *cl, const char **message,
1626 const char **addinfo)
1629 *message = cl->message;
1631 *addinfo = cl->addinfo;
1632 return cl->diagnostic;
1635 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf)
1638 struct suggestions *suggestions = cl->suggestions;
1642 if (suggestions->passthrough)
1644 yaz_log(YLOG_DEBUG, "Passthrough Suggestions: \n%s\n",
1645 suggestions->passthrough);
1646 return suggestions->passthrough;
1648 if (suggestions->num == 0)
1651 for (idx = 0; idx < suggestions->num; idx++) {
1652 wrbuf_printf(wrbuf, "<suggest term=\"%s\"", suggestions->suggest[idx]);
1653 if (suggestions->misspelled[idx] && suggestions->misspelled[idx]) {
1654 wrbuf_puts(wrbuf, suggestions->misspelled[idx]);
1655 wrbuf_puts(wrbuf, "</suggest>\n");
1658 wrbuf_puts(wrbuf, "/>\n");
1661 return wrbuf_cstr(wrbuf);
1665 void client_set_database(struct client *cl, struct session_database *db)
1670 const char *client_get_id(struct client *cl)
1675 int client_get_maxrecs(struct client *cl)
1680 void client_set_preferred(struct client *cl, int v)
1686 struct suggestions* client_suggestions_create(const char* suggestions_string)
1690 struct suggestions *suggestions;
1691 if (suggestions_string == 0 || suggestions_string[0] == 0 )
1693 nmem = nmem_create();
1694 suggestions = nmem_malloc(nmem, sizeof(*suggestions));
1695 yaz_log(YLOG_DEBUG, "client target suggestions: %s.", suggestions_string);
1697 suggestions->nmem = nmem;
1698 suggestions->num = 0;
1699 suggestions->misspelled = 0;
1700 suggestions->suggest = 0;
1701 suggestions->passthrough = nmem_strdup_null(nmem, suggestions_string);
1703 if (suggestions_string)
1704 nmem_strsplit_escape2(suggestions->nmem, "\n", suggestions_string, &suggestions->suggest,
1705 &suggestions->num, 1, '\\', 0);
1706 /* Set up misspelled array */
1707 suggestions->misspelled = (char **)
1708 nmem_malloc(nmem, suggestions->num * sizeof(*suggestions->misspelled));
1709 /* replace = with \0 .. for each item */
1710 for (i = 0; i < suggestions->num; i++)
1712 char *cp = strchr(suggestions->suggest[i], '=');
1715 suggestions->misspelled[i] = cp+1;
1721 static void client_suggestions_destroy(struct client *cl)
1723 NMEM nmem = cl->suggestions->nmem;
1724 cl->suggestions = 0;
1731 * c-file-style: "Stroustrup"
1732 * indent-tabs-mode: nil
1734 * vim: shiftwidth=4 tabstop=8 expandtab