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
118 int filtered; // When using local:, this will count the number of filtered records.
124 struct suggestions *suggestions;
125 enum client_state state;
126 struct show_raw *show_raw;
127 ZOOM_resultset resultset;
130 facet_limits_t facet_limits;
145 int active; // whether this request has been sent to the server
151 void (*error_handler)(void *data, const char *addinfo);
152 void (*record_handler)(void *data, const char *buf, size_t sz);
154 struct show_raw *next;
157 static const char *client_states[] = {
163 "Client_Disconnected"
166 const char *client_get_state_str(struct client *cl)
168 return client_states[cl->state];
171 enum client_state client_get_state(struct client *cl)
176 void client_set_state_nb(struct client *cl, enum client_state st)
181 void client_set_state(struct client *cl, enum client_state st)
184 if (client_is_active(cl))
187 /* If client is going from being active to inactive and all clients
188 are now idle we fire a watch for the session . The assumption is
189 that session is not mutex locked if client is already active */
190 if (was_active && !client_is_active(cl) && cl->session)
193 int no_active = session_active_clients(cl->session);
194 yaz_log(YLOG_DEBUG, "%s: releasing watches on zero active: %d",
195 client_get_id(cl), no_active);
196 if (no_active == 0) {
197 session_alert_watch(cl->session, SESSION_WATCH_SHOW);
198 session_alert_watch(cl->session, SESSION_WATCH_BYTARGET);
199 session_alert_watch(cl->session, SESSION_WATCH_TERMLIST);
200 session_alert_watch(cl->session, SESSION_WATCH_SHOW_PREF);
205 static void client_show_raw_error(struct client *cl, const char *addinfo);
207 struct connection *client_get_connection(struct client *cl)
209 return cl->connection;
212 struct session_database *client_get_database(struct client *cl)
217 struct session *client_get_session(struct client *cl)
222 const char *client_get_pquery(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 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 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;
516 session_enter_ro(se, "client_check_preferred_watch");
517 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: %s ", client_get_id(cl));
521 if (session_is_preferred_clients_ready(se))
522 session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
524 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: Still locked on preferred targets.");
528 yaz_log(YLOG_WARN, "client_check_preferred_watch: %s. No session!", client_get_id(cl));
530 session_leave_ro(se, "client_check_preferred_watch");
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 session_enter_rw(cl->session, "client_search_response");
545 if (ZOOM_connection_error(link, &error, &addinfo))
548 client_set_state(cl, Client_Error);
549 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
550 error, addinfo, client_get_id(cl));
554 client_report_facets(cl, resultset);
555 cl->record_offset = cl->startrecs;
556 cl->hits = ZOOM_resultset_size(resultset);
557 yaz_log(YLOG_DEBUG, "client_search_response: hits " ODR_INT_PRINTF, cl->hits);
559 client_suggestions_destroy(cl);
560 cl->suggestions = client_suggestions_create(ZOOM_resultset_option_get(resultset, "suggestions"));
562 session_leave_rw(cl->session, "client_search_response");
565 void client_got_records(struct client *cl)
567 struct session *se = cl->session;
569 session_enter_ro(se, "client_got_records");
570 if (reclist_get_num_records(se->reclist) > 0)
572 session_alert_watch(se, SESSION_WATCH_SHOW);
573 session_alert_watch(se, SESSION_WATCH_BYTARGET);
574 session_alert_watch(se, SESSION_WATCH_TERMLIST);
575 session_alert_watch(se, SESSION_WATCH_RECORD);
577 session_leave_ro(se, "client_got_records");
580 static void client_record_ingest(struct client *cl)
582 const char *msg, *addinfo;
584 ZOOM_resultset resultset = cl->resultset;
585 struct session *se = client_get_session(cl);
587 if ((rec = ZOOM_resultset_record_immediate(resultset, cl->record_offset)))
589 int offset = ++cl->record_offset;
590 if (cl->session == 0) {
593 else if (ZOOM_record_error(rec, &msg, &addinfo, 0))
595 session_log(se, YLOG_WARN, "Record error %s (%s): %s #%d",
596 msg, addinfo, client_get_id(cl), offset);
600 struct session_database *sdb = client_get_database(cl);
601 NMEM nmem = nmem_create();
605 const char *s = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
606 if (nativesyntax_to_type(s, type, rec))
607 session_log(se, YLOG_WARN, "Failed to determine record type");
608 xmlrec = ZOOM_record_get(rec, type, NULL);
611 const char *rec_syn = ZOOM_record_get(rec, "syntax", NULL);
612 session_log(se, YLOG_WARN, "ZOOM_record_get failed from %s #%d",
613 client_get_id(cl), offset);
614 session_log(se, YLOG_LOG, "pz:nativesyntax=%s . "
615 "ZOOM record type=%s . Actual record syntax=%s",
616 s ? s : "null", type,
617 rec_syn ? rec_syn : "null");
621 /* OK = 0, -1 = failure, -2 = Filtered */
622 int rc = ingest_record(cl, xmlrec, cl->record_offset, nmem);
625 const char *rec_syn = ZOOM_record_get(rec, "syntax", NULL);
626 session_log(se, YLOG_WARN,
627 "Failed to ingest record from %s #%d",
628 client_get_id(cl), offset);
629 session_log(se, YLOG_LOG, "pz:nativesyntax=%s . "
630 "ZOOM record type=%s . Actual record syntax=%s",
631 s ? s : "null", type,
632 rec_syn ? rec_syn : "null");
642 session_log(se, YLOG_WARN, "Got NULL record from %s #%d",
643 client_get_id(cl), cl->record_offset);
647 void client_record_response(struct client *cl)
649 struct connection *co = cl->connection;
650 ZOOM_connection link = connection_get_link(co);
651 ZOOM_resultset resultset = cl->resultset;
652 const char *error, *addinfo;
654 session_enter_rw(cl->session, "client_record_response");
655 if (ZOOM_connection_error(link, &error, &addinfo))
657 client_set_state(cl, Client_Error);
658 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
659 error, addinfo, client_get_id(cl));
663 if (cl->show_raw && cl->show_raw->active)
666 if ((rec = ZOOM_resultset_record_immediate(
667 resultset, cl->show_raw->position-1)))
669 cl->show_raw->active = 0;
670 ingest_raw_record(cl, rec);
674 yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d",
675 cl->show_raw->position-1);
680 client_record_ingest(cl);
683 session_leave_rw(cl->session, "client_record_response");
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 int client_parse_init(struct client *cl, int same_search)
768 cl->same_search = same_search;
773 * TODO consider how to extend the range
775 int client_parse_range(struct client *cl, const char *startrecs, const char *maxrecs)
777 if (maxrecs && atoi(maxrecs) != cl->maxrecs)
780 cl->maxrecs = atoi(maxrecs);
783 if (startrecs && atoi(startrecs) != cl->startrecs)
786 cl->startrecs = atoi(startrecs);
792 int client_start_search(struct client *cl)
794 struct session_database *sdb = client_get_database(cl);
795 struct connection *co = 0;
796 ZOOM_connection link = 0;
797 struct session *se = client_get_session(cl);
799 const char *opt_piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK);
800 const char *opt_queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING);
801 const char *opt_elements = session_setting_oneval(sdb, PZ_ELEMENTS);
802 const char *opt_requestsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
803 const char *opt_maxrecs = session_setting_oneval(sdb, PZ_MAXRECS);
804 const char *opt_sru = session_setting_oneval(sdb, PZ_SRU);
805 const char *opt_sort = session_setting_oneval(sdb, PZ_SORT);
806 const char *opt_preferred = session_setting_oneval(sdb, PZ_PREFERRED);
807 const char *extra_args = session_setting_oneval(sdb, PZ_EXTRA_ARGS);
808 const char *opt_present_chunk = session_setting_oneval(sdb, PZ_PRESENT_CHUNK);
810 char maxrecs_str[24], startrecs_str[24], present_chunk_str[24];
812 int present_chunk = 20; // Default chunk size
813 int rc_prep_connection;
816 yaz_gettimeofday(&tval);
819 if (opt_present_chunk && strcmp(opt_present_chunk,"")) {
820 present_chunk = atoi(opt_present_chunk);
821 yaz_log(YLOG_DEBUG, "Present chunk set to %d", present_chunk);
824 client_prep_connection(cl, se->service->z3950_operation_timeout,
825 se->service->z3950_session_timeout,
826 se->service->server->iochan_man,
828 /* Nothing has changed and we already have a result */
829 if (cl->same_search == 1 && rc_prep_connection == 2)
831 session_log(se, YLOG_LOG, "client %s REUSE result", client_get_id(cl));
832 return client_reingest(cl);
834 else if (!rc_prep_connection)
836 session_log(se, YLOG_LOG, "client %s FAILED to search: No connection.", client_get_id(cl));
839 co = client_get_connection(cl);
841 link = connection_get_link(co);
844 session_log(se, YLOG_LOG, "client %s NEW search", client_get_id(cl));
849 if (extra_args && *extra_args)
850 ZOOM_connection_option_set(link, "extraArgs", extra_args);
853 cl->preferred = atoi(opt_preferred);
855 yaz_log(YLOG_LOG, "Target %s has preferred status: %d",
856 client_get_id(cl), cl->preferred);
860 ZOOM_connection_option_set(link, "piggyback", opt_piggyback);
862 ZOOM_connection_option_set(link, "piggyback", "1");
864 ZOOM_connection_option_set(link, "rpnCharset", opt_queryenc);
865 if (*opt_sru && *opt_elements)
866 ZOOM_connection_option_set(link, "schema", opt_elements);
867 else if (*opt_elements)
868 ZOOM_connection_option_set(link, "elementSetName", opt_elements);
870 ZOOM_connection_option_set(link, "preferredRecordSyntax", opt_requestsyn);
872 if (opt_maxrecs && *opt_maxrecs)
874 cl->maxrecs = atoi(opt_maxrecs);
877 /* convert back to string representation used in ZOOM API */
878 sprintf(maxrecs_str, "%d", cl->maxrecs);
879 ZOOM_connection_option_set(link, "count", maxrecs_str);
881 /* A present_chunk less than 1 will disable chunking. */
882 if (present_chunk > 0 && cl->maxrecs > present_chunk) {
883 sprintf(present_chunk_str, "%d", present_chunk);
884 ZOOM_connection_option_set(link, "presentChunk", present_chunk_str);
885 yaz_log(YLOG_DEBUG, "Present chunk set to %s", present_chunk_str);
888 ZOOM_connection_option_set(link, "presentChunk", maxrecs_str);
889 yaz_log(YLOG_DEBUG, "Present chunk set to %s (maxrecs)", maxrecs_str);
891 sprintf(startrecs_str, "%d", cl->startrecs);
892 ZOOM_connection_option_set(link, "start", startrecs_str);
894 /* TODO Verify does it break something for CQL targets(non-SOLR) ? */
895 /* facets definition is in PQF */
896 client_set_facets_request(cl, link);
898 query = ZOOM_query_create();
901 yaz_log(YLOG_LOG, "Client %s: Search CQL: %s", client_get_id(cl), cl->cqlquery);
902 ZOOM_query_cql(query, cl->cqlquery);
904 ZOOM_query_sortby(query, opt_sort);
908 yaz_log(YLOG_LOG, "Client %s: Search PQF: %s", client_get_id(cl), cl->pquery);
910 ZOOM_query_prefix(query, cl->pquery);
912 if (cl->sort_strategy && cl->sort_criteria) {
913 yaz_log(YLOG_LOG, "Client %s: Setting ZOOM sort strategy and criteria: %s %s",
914 client_get_id(cl), cl->sort_strategy, cl->sort_criteria);
915 ZOOM_query_sortby2(query, cl->sort_strategy, cl->sort_criteria);
918 yaz_log(YLOG_DEBUG,"Client %s: Starting search", client_get_id(cl));
919 client_set_state(cl, Client_Working);
921 cl->record_offset = 0;
922 rs = ZOOM_connection_search(link, query);
923 ZOOM_query_destroy(query);
924 ZOOM_resultset_destroy(cl->resultset);
926 connection_continue(co);
930 struct client *client_create(const char *id)
932 struct client *cl = xmalloc(sizeof(*cl));
943 cl->record_offset = 0;
946 cl->state = Client_Disconnected;
952 cl->facet_limits = 0;
953 cl->sort_strategy = 0;
954 cl->sort_criteria = 0;
956 cl->id = xstrdup(id);
962 void client_incref(struct client *c)
965 yaz_log(YLOG_DEBUG, "client_incref c=%p %s cnt=%d",
966 c, client_get_id(c), c->ref_count);
969 int client_destroy(struct client *c)
973 yaz_log(YLOG_DEBUG, "client_destroy c=%p %s cnt=%d",
974 c, client_get_id(c), c->ref_count);
975 if (--c->ref_count == 0)
986 xfree(c->sort_strategy);
987 xfree(c->sort_criteria);
988 assert(!c->connection);
989 facet_limits_destroy(c->facet_limits);
993 ZOOM_resultset_destroy(c->resultset);
1003 void client_set_connection(struct client *cl, struct connection *con)
1006 ZOOM_resultset_release(cl->resultset);
1009 assert(cl->connection == 0);
1010 cl->connection = con;
1015 cl->connection = con;
1020 void client_disconnect(struct client *cl)
1022 if (cl->state != Client_Idle)
1023 client_set_state(cl, Client_Disconnected);
1024 client_set_connection(cl, 0);
1028 // Initialize CCL map for a target
1029 static CCL_bibset prepare_cclmap(struct client *cl, CCL_bibset base_bibset)
1031 struct session_database *sdb = client_get_database(cl);
1038 res = ccl_qual_dup(base_bibset);
1040 res = ccl_qual_mk();
1041 for (s = sdb->settings[PZ_CCLMAP]; s; s = s->next)
1043 const char *addinfo = 0;
1044 char *p = strchr(s->name + 3, ':');
1047 WRBUF w = wrbuf_alloc();
1048 wrbuf_printf(w, "Malformed cclmap. name=%s", s->name);
1049 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1050 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1051 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1053 client_set_state_nb(cl, Client_Error);
1059 if (ccl_qual_fitem2(res, s->value, p, &addinfo))
1061 WRBUF w = wrbuf_alloc();
1063 wrbuf_printf(w, "Malformed cclmap. name=%s: value=%s (%s)",
1064 s->name, p, addinfo);
1065 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1066 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1067 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1069 client_set_state_nb(cl, Client_Error);
1078 // returns a xmalloced CQL query corresponding to the pquery in client
1079 static char *make_cqlquery(struct client *cl, Z_RPNQuery *zquery)
1081 cql_transform_t cqlt = cql_transform_create();
1083 WRBUF wrb = wrbuf_alloc();
1086 if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
1088 yaz_log(YLOG_WARN, "Failed to generate CQL query, code=%d", status);
1092 r = xstrdup(wrbuf_cstr(wrb));
1095 cql_transform_close(cqlt);
1099 // returns a xmalloced SOLR query corresponding to the pquery in client
1100 // TODO Could prob. be merge with the similar make_cqlquery
1101 static char *make_solrquery(struct client *cl, Z_RPNQuery *zquery)
1103 solr_transform_t sqlt = solr_transform_create();
1105 WRBUF wrb = wrbuf_alloc();
1108 if ((status = solr_transform_rpn2solr_wrbuf(sqlt, wrb, zquery)))
1110 yaz_log(YLOG_WARN, "Failed to generate SOLR query, code=%d", status);
1114 r = xstrdup(wrbuf_cstr(wrb));
1117 solr_transform_close(sqlt);
1121 const char *client_get_facet_limit_local(struct client *cl,
1122 struct session_database *sdb,
1124 NMEM nmem, int *num, char ***values)
1126 const char *name = 0;
1127 const char *value = 0;
1128 for (; (name = facet_limits_get(cl->facet_limits, *l, &value)); (*l)++)
1130 struct setting *s = 0;
1132 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1134 const char *p = strchr(s->name + 3, ':');
1135 if (p && !strcmp(p + 1, name) && s->value)
1139 nmem_strsplit_escape2(nmem, ",", s->value, &cvalues,
1141 for (j = 0; j < cnum; j++)
1143 const char *cvalue = cvalues[j];
1144 while (*cvalue == ' ')
1146 if (!strncmp(cvalue, "local:", 6))
1148 const char *cp = cvalue + 6;
1151 nmem_strsplit_escape2(nmem, "|", value, values,
1154 return *cp ? cp : name;
1163 static int apply_limit(struct session_database *sdb,
1164 facet_limits_t facet_limits,
1165 WRBUF w_pqf, CCL_bibset ccl_map,
1166 struct conf_service *service)
1173 NMEM nmem_tmp = nmem_create();
1174 for (i = 0; (name = facet_limits_get(facet_limits, i, &value)); i++)
1176 struct setting *s = 0;
1177 nmem_reset(nmem_tmp);
1178 /* name="pz:limitmap:author" value="rpn:@attr 1=4|local:other" */
1179 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1181 const char *p = strchr(s->name + 3, ':');
1182 if (p && !strcmp(p + 1, name) && s->value)
1188 nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
1191 nmem_strsplit_escape2(nmem_tmp, ",", s->value, &cvalues,
1194 for (j = 0; ret == 0 && j < cnum; j++)
1196 const char *cvalue = cvalues[j];
1197 while (*cvalue == ' ')
1199 if (!strncmp(cvalue, "rpn:", 4))
1201 const char *pqf = cvalue + 4;
1202 wrbuf_puts(w_pqf, "@and ");
1203 wrbuf_puts(w_pqf, pqf);
1204 wrbuf_puts(w_pqf, " ");
1205 for (i = 0; i < num; i++)
1208 wrbuf_puts(w_pqf, "@or ");
1209 yaz_encode_pqf_term(w_pqf, values[i],
1213 else if (!strncmp(cvalue, "ccl:", 4))
1215 const char *ccl = cvalue + 4;
1216 WRBUF ccl_w = wrbuf_alloc();
1217 for (i = 0; i < num; i++)
1220 struct ccl_rpn_node *cn;
1221 wrbuf_rewind(ccl_w);
1222 wrbuf_puts(ccl_w, ccl);
1223 wrbuf_puts(ccl_w, "=\"");
1224 wrbuf_puts(ccl_w, values[i]);
1225 wrbuf_puts(ccl_w, "\"");
1227 cn = ccl_find_str(ccl_map, wrbuf_cstr(ccl_w),
1232 wrbuf_printf(w_pqf, "@and ");
1234 /* or multiple values.. could be bad if last
1235 CCL parse fails, but this is unlikely to
1238 wrbuf_printf(w_pqf, "@or ");
1239 ccl_pquery(w_pqf, cn);
1243 wrbuf_destroy(ccl_w);
1245 else if (!strncmp(cvalue, "local:", 6)) {
1250 yaz_log(YLOG_WARN, "Target %s: Bad limitmap '%s'",
1251 sdb->database->id, cvalue);
1252 ret = -1; /* bad limitmap */
1261 for (i = 0; i < service->num_metadata; i++)
1263 struct conf_metadata *md = service->metadata + i;
1264 if (!strcmp(md->name, name) && md->limitcluster)
1266 yaz_log(YLOG_LOG, "limitcluster in use for %s",
1271 if (i == service->num_metadata)
1273 yaz_log(YLOG_WARN, "Target %s: limit %s used, but no limitmap defined",
1274 (sdb->database ? sdb->database->id : "<no id>"), name);
1278 nmem_destroy(nmem_tmp);
1282 // Parse the query given the settings specific to this client
1283 // client variable same_search is set as below as well as returned:
1284 // 0 if query is OK but different from before
1285 // 1 if query is OK but same as before
1286 // return -1 on query error
1287 // return -2 on limit error
1288 int client_parse_query(struct client *cl, const char *query,
1289 facet_limits_t facet_limits)
1291 struct session *se = client_get_session(cl);
1292 struct conf_service *service = se->service;
1293 struct session_database *sdb = client_get_database(cl);
1294 struct ccl_rpn_node *cn;
1297 CCL_bibset ccl_map = prepare_cclmap(cl, service->ccl_bibset);
1298 const char *sru = session_setting_oneval(sdb, PZ_SRU);
1299 const char *pqf_prefix = session_setting_oneval(sdb, PZ_PQF_PREFIX);
1300 const char *pqf_strftime = session_setting_oneval(sdb, PZ_PQF_STRFTIME);
1301 const char *query_syntax = session_setting_oneval(sdb, PZ_QUERY_SYNTAX);
1309 w_ccl = wrbuf_alloc();
1310 wrbuf_puts(w_ccl, query);
1312 w_pqf = wrbuf_alloc();
1315 wrbuf_puts(w_pqf, pqf_prefix);
1316 wrbuf_puts(w_pqf, " ");
1319 if (apply_limit(sdb, facet_limits, w_pqf, ccl_map, service))
1321 ccl_qual_rm(&ccl_map);
1325 facet_limits_destroy(cl->facet_limits);
1326 cl->facet_limits = facet_limits_dup(facet_limits);
1328 yaz_log(YLOG_LOG, "Client %s: CCL query: %s limit: %s", client_get_id(cl), wrbuf_cstr(w_ccl), wrbuf_cstr(w_pqf));
1329 cn = ccl_find_str(ccl_map, wrbuf_cstr(w_ccl), &cerror, &cpos);
1330 ccl_qual_rm(&ccl_map);
1333 client_set_state(cl, Client_Error);
1334 session_log(se, YLOG_WARN, "Client %s: Failed to parse CCL query '%s'",
1337 wrbuf_destroy(w_ccl);
1338 wrbuf_destroy(w_pqf);
1341 wrbuf_destroy(w_ccl);
1343 if (!pqf_strftime || !*pqf_strftime)
1344 ccl_pquery(w_pqf, cn);
1347 time_t cur_time = time(0);
1348 struct tm *tm = localtime(&cur_time);
1350 const char *cp = tmp_str;
1352 /* see man strftime(3) for things .. In particular %% gets converted
1353 to %.. And That's our original query .. */
1354 strftime(tmp_str, sizeof(tmp_str)-1, pqf_strftime, tm);
1358 ccl_pquery(w_pqf, cn);
1360 wrbuf_putc(w_pqf, cp[0]);
1364 /* Compares query and limit with old one. If different we need to research */
1365 if (!cl->pquery || strcmp(cl->pquery, wrbuf_cstr(w_pqf)))
1368 session_log(se, YLOG_LOG, "Client %s: Re-search due query/limit change: %s to %s",
1369 client_get_id(cl), cl->pquery, wrbuf_cstr(w_pqf));
1371 cl->pquery = xstrdup(wrbuf_cstr(w_pqf));
1372 // return value is no longer used.
1374 // Need to (re)search
1377 wrbuf_destroy(w_pqf);
1379 xfree(cl->cqlquery);
1382 odr_out = odr_createmem(ODR_ENCODE);
1383 zquery = p_query_rpn(odr_out, cl->pquery);
1387 session_log(se, YLOG_WARN, "Invalid PQF query for Client %s: %s",
1388 client_get_id(cl), cl->pquery);
1393 session_log(se, YLOG_LOG, "PQF for Client %s: %s",
1394 client_get_id(cl), cl->pquery);
1396 /* Support for PQF on SRU targets. */
1397 if (strcmp(query_syntax, "pqf") != 0 && *sru)
1399 if (!strcmp(sru, "solr"))
1400 cl->cqlquery = make_solrquery(cl, zquery);
1402 cl->cqlquery = make_cqlquery(cl, zquery);
1406 session_log(se, YLOG_LOG, "Client %s native query: %s (%s)",
1407 client_get_id(cl), cl->cqlquery, sru);
1410 odr_destroy(odr_out);
1412 /* TODO FIX Not thread safe */
1415 // Initialize relevance structure with query terms
1416 se->relevance = relevance_create_ccl(se->service->charsets, cn,
1417 se->service->rank_cluster,
1418 se->service->rank_follow,
1419 se->service->rank_lead,
1420 se->service->rank_length);
1426 int client_parse_sort(struct client *cl, struct reclist_sortparms *sp)
1430 const char *sort_strategy_and_spec =
1431 get_strategy_plus_sort(cl, sp->name);
1432 int increasing = sp->increasing;
1433 if (sort_strategy_and_spec && strlen(sort_strategy_and_spec) < 40)
1435 char strategy[50], *p;
1436 strcpy(strategy, sort_strategy_and_spec);
1437 p = strchr(strategy, ':');
1440 // Split the string in two
1448 yaz_log(YLOG_LOG, "Client %s: applying sorting %s %s", client_get_id(cl), strategy, p);
1449 if (!cl->sort_strategy || strcmp(cl->sort_strategy, strategy))
1450 cl->same_search = 0;
1451 if (!cl->sort_criteria || strcmp(cl->sort_criteria, p))
1452 cl->same_search = 0;
1453 if (cl->same_search == 0) {
1454 xfree(cl->sort_strategy);
1455 cl->sort_strategy = xstrdup(strategy);
1456 xfree(cl->sort_criteria);
1457 cl->sort_criteria = xstrdup(p);
1461 yaz_log(YLOG_LOG, "Client %s: Invalid sort strategy and spec found %s", client_get_id(cl), sort_strategy_and_spec);
1462 xfree(cl->sort_strategy);
1463 cl->sort_strategy = 0;
1464 xfree(cl->sort_criteria);
1465 cl->sort_criteria = 0;
1468 yaz_log(YLOG_DEBUG, "Client %s: No sort strategy and spec found.", client_get_id(cl));
1469 xfree(cl->sort_strategy);
1470 cl->sort_strategy = 0;
1471 xfree(cl->sort_criteria);
1472 cl->sort_criteria = 0;
1476 return !cl->same_search;
1479 void client_set_session(struct client *cl, struct session *se)
1484 int client_is_active(struct client *cl)
1486 if (cl->connection && (cl->state == Client_Connecting ||
1487 cl->state == Client_Working))
1492 int client_is_active_preferred(struct client *cl)
1494 /* only count if this is a preferred target. */
1497 /* TODO No sure this the condition that Seb wants */
1498 if (cl->connection && (cl->state == Client_Connecting ||
1499 cl->state == Client_Working))
1504 Odr_int client_get_hits(struct client *cl)
1509 Odr_int client_get_approximation(struct client *cl)
1511 if (cl->record_offset > 0) {
1512 Odr_int approx = ((10 * cl->hits * (cl->record_offset - cl->filtered)) / cl->record_offset + 5) /10;
1513 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);
1519 int client_get_num_records(struct client *cl)
1521 return cl->record_offset;
1524 int client_get_num_records_filtered(struct client *cl)
1526 return cl->filtered;
1529 void client_set_diagnostic(struct client *cl, int diagnostic,
1530 const char *message, const char *addinfo)
1532 cl->diagnostic = diagnostic;
1534 cl->message = xstrdup(message);
1538 cl->addinfo = xstrdup(addinfo);
1541 int client_get_diagnostic(struct client *cl, const char **message,
1542 const char **addinfo)
1545 *message = cl->message;
1547 *addinfo = cl->addinfo;
1548 return cl->diagnostic;
1551 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf)
1554 struct suggestions *suggestions = cl->suggestions;
1557 //yaz_log(YLOG_DEBUG, "No suggestions found");
1560 if (suggestions->passthrough) {
1561 yaz_log(YLOG_DEBUG, "Passthrough Suggestions: \n%s\n", suggestions->passthrough);
1562 return suggestions->passthrough;
1564 if (suggestions->num == 0) {
1568 for (idx = 0; idx < suggestions->num; idx++) {
1569 wrbuf_printf(wrbuf, "<suggest term=\"%s\"", suggestions->suggest[idx]);
1570 if (suggestions->misspelled[idx] && suggestions->misspelled[idx]) {
1571 wrbuf_puts(wrbuf, suggestions->misspelled[idx]);
1572 wrbuf_puts(wrbuf, "</suggest>\n");
1575 wrbuf_puts(wrbuf, "/>\n");
1578 return wrbuf_cstr(wrbuf);
1582 void client_set_database(struct client *cl, struct session_database *db)
1587 const char *client_get_id(struct client *cl)
1592 int client_get_maxrecs(struct client *cl)
1597 struct suggestions* client_suggestions_create(const char* suggestions_string)
1601 struct suggestions *suggestions;
1602 if (suggestions_string == 0 || suggestions_string[0] == 0 )
1604 nmem = nmem_create();
1605 suggestions = nmem_malloc(nmem, sizeof(*suggestions));
1606 yaz_log(YLOG_DEBUG, "client target suggestions: %s.", suggestions_string);
1608 suggestions->nmem = nmem;
1609 suggestions->num = 0;
1610 suggestions->misspelled = 0;
1611 suggestions->suggest = 0;
1612 suggestions->passthrough = nmem_strdup_null(nmem, suggestions_string);
1614 if (suggestions_string)
1615 nmem_strsplit_escape2(suggestions->nmem, "\n", suggestions_string, &suggestions->suggest,
1616 &suggestions->num, 1, '\\', 0);
1617 /* Set up misspelled array */
1618 suggestions->misspelled = (char **) nmem_malloc(nmem, suggestions->num * sizeof(**suggestions->misspelled));
1619 /* replace = with \0 .. for each item */
1620 for (i = 0; i < suggestions->num; i++)
1622 char *cp = strchr(suggestions->suggest[i], '=');
1625 suggestions->misspelled[i] = cp+1;
1631 static void client_suggestions_destroy(struct client *cl)
1633 NMEM nmem = cl->suggestions->nmem;
1634 cl->suggestions = 0;
1638 int client_test_sort_order(struct client *cl, struct reclist_sortparms *sp)
1640 //TODO implement correctly.
1646 * c-file-style: "Stroustrup"
1647 * indent-tabs-mode: nil
1649 * vim: shiftwidth=4 tabstop=8 expandtab