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));
520 /* TODO possible threading issue. Session can have been destroyed */
522 if (session_is_preferred_clients_ready(se)) {
524 session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
528 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: Still locked on preferred targets.");
532 yaz_log(YLOG_WARN, "client_check_preferred_watch: %s. No session!", client_get_id(cl));
534 session_leave_ro(se, "client_check_preferred_watch");
537 struct suggestions* client_suggestions_create(const char* suggestions_string);
538 static void client_suggestions_destroy(struct client *cl);
540 void client_search_response(struct client *cl)
542 struct connection *co = cl->connection;
543 ZOOM_connection link = connection_get_link(co);
544 ZOOM_resultset resultset = cl->resultset;
546 const char *error, *addinfo = 0;
548 session_enter_rw(cl->session, "client_search_response");
549 if (ZOOM_connection_error(link, &error, &addinfo))
552 client_set_state(cl, Client_Error);
553 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
554 error, addinfo, client_get_id(cl));
558 client_report_facets(cl, resultset);
559 cl->record_offset = cl->startrecs;
560 cl->hits = ZOOM_resultset_size(resultset);
561 yaz_log(YLOG_DEBUG, "client_search_response: hits " ODR_INT_PRINTF, cl->hits);
563 client_suggestions_destroy(cl);
564 cl->suggestions = client_suggestions_create(ZOOM_resultset_option_get(resultset, "suggestions"));
566 session_leave_rw(cl->session, "client_search_response");
569 void client_got_records(struct client *cl)
571 struct session *se = cl->session;
573 session_enter_ro(se, "client_got_records");
574 if (reclist_get_num_records(se->reclist) > 0)
576 session_alert_watch(se, SESSION_WATCH_SHOW);
577 session_alert_watch(se, SESSION_WATCH_BYTARGET);
578 session_alert_watch(se, SESSION_WATCH_TERMLIST);
579 session_alert_watch(se, SESSION_WATCH_RECORD);
581 session_leave_ro(se, "client_got_records");
584 static void client_record_ingest(struct client *cl)
586 const char *msg, *addinfo;
588 ZOOM_resultset resultset = cl->resultset;
589 struct session *se = client_get_session(cl);
591 if ((rec = ZOOM_resultset_record_immediate(resultset, cl->record_offset)))
593 int offset = ++cl->record_offset;
594 if (cl->session == 0) {
597 else if (ZOOM_record_error(rec, &msg, &addinfo, 0))
599 session_log(se, YLOG_WARN, "Record error %s (%s): %s #%d",
600 msg, addinfo, client_get_id(cl), offset);
604 struct session_database *sdb = client_get_database(cl);
605 NMEM nmem = nmem_create();
609 const char *s = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
610 if (nativesyntax_to_type(s, type, rec))
611 session_log(se, YLOG_WARN, "Failed to determine record type");
612 xmlrec = ZOOM_record_get(rec, type, NULL);
615 const char *rec_syn = ZOOM_record_get(rec, "syntax", NULL);
616 session_log(se, YLOG_WARN, "ZOOM_record_get failed from %s #%d",
617 client_get_id(cl), offset);
618 session_log(se, YLOG_LOG, "pz:nativesyntax=%s . "
619 "ZOOM record type=%s . Actual record syntax=%s",
620 s ? s : "null", type,
621 rec_syn ? rec_syn : "null");
625 /* OK = 0, -1 = failure, -2 = Filtered */
626 int rc = ingest_record(cl, xmlrec, cl->record_offset, nmem);
629 const char *rec_syn = ZOOM_record_get(rec, "syntax", NULL);
630 session_log(se, YLOG_WARN,
631 "Failed to ingest record from %s #%d",
632 client_get_id(cl), offset);
633 session_log(se, YLOG_LOG, "pz:nativesyntax=%s . "
634 "ZOOM record type=%s . Actual record syntax=%s",
635 s ? s : "null", type,
636 rec_syn ? rec_syn : "null");
646 session_log(se, YLOG_WARN, "Got NULL record from %s #%d",
647 client_get_id(cl), cl->record_offset);
651 void client_record_response(struct client *cl)
653 struct connection *co = cl->connection;
654 ZOOM_connection link = connection_get_link(co);
655 ZOOM_resultset resultset = cl->resultset;
656 const char *error, *addinfo;
658 session_enter_rw(cl->session, "client_record_response");
659 if (ZOOM_connection_error(link, &error, &addinfo))
661 client_set_state(cl, Client_Error);
662 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
663 error, addinfo, client_get_id(cl));
667 if (cl->show_raw && cl->show_raw->active)
670 if ((rec = ZOOM_resultset_record_immediate(
671 resultset, cl->show_raw->position-1)))
673 cl->show_raw->active = 0;
674 ingest_raw_record(cl, rec);
678 yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d",
679 cl->show_raw->position-1);
684 client_record_ingest(cl);
687 session_leave_rw(cl->session, "client_record_response");
690 int client_reingest(struct client *cl)
692 int i = cl->startrecs;
693 int to = cl->record_offset;
696 cl->record_offset = i;
698 client_record_ingest(cl);
702 static void client_set_facets_request(struct client *cl, ZOOM_connection link)
704 struct session_database *sdb = client_get_database(cl);
706 WRBUF w = wrbuf_alloc();
710 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
712 const char *p = strchr(s->name + 3, ':');
715 yaz_log(YLOG_WARN, "Malformed facetmap name: %s", s->name);
717 else if (s->value && s->value[0])
719 wrbuf_puts(w, "@attr 1=");
720 yaz_encode_pqf_term(w, s->value, strlen(s->value));
725 yaz_log(YLOG_DEBUG, "using facets str: %s", wrbuf_cstr(w));
726 ZOOM_connection_option_set(link, "facets",
727 wrbuf_len(w) ? wrbuf_cstr(w) : 0);
731 int client_has_facet(struct client *cl, const char *name)
733 struct session_database *sdb = client_get_database(cl);
736 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
738 const char *p = strchr(s->name + 3, ':');
739 if (p && !strcmp(name, p + 1))
745 static const char *get_strategy_plus_sort(struct client *l, const char *field)
747 struct session_database *sdb = client_get_database(l);
750 const char *strategy_plus_sort = 0;
752 for (s = sdb->settings[PZ_SORTMAP]; s; s = s->next)
754 char *p = strchr(s->name + 3, ':');
757 yaz_log(YLOG_WARN, "Malformed sortmap name: %s", s->name);
761 if (!strcmp(p, field))
763 strategy_plus_sort = s->value;
767 return strategy_plus_sort;
770 int client_parse_init(struct client *cl, int same_search)
772 cl->same_search = same_search;
777 * TODO consider how to extend the range
779 int client_parse_range(struct client *cl, const char *startrecs, const char *maxrecs)
781 if (maxrecs && atoi(maxrecs) != cl->maxrecs)
784 cl->maxrecs = atoi(maxrecs);
787 if (startrecs && atoi(startrecs) != cl->startrecs)
790 cl->startrecs = atoi(startrecs);
796 int client_start_search(struct client *cl)
798 struct session_database *sdb = client_get_database(cl);
799 struct connection *co = 0;
800 ZOOM_connection link = 0;
801 struct session *se = client_get_session(cl);
803 const char *opt_piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK);
804 const char *opt_queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING);
805 const char *opt_elements = session_setting_oneval(sdb, PZ_ELEMENTS);
806 const char *opt_requestsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
807 const char *opt_maxrecs = session_setting_oneval(sdb, PZ_MAXRECS);
808 const char *opt_sru = session_setting_oneval(sdb, PZ_SRU);
809 const char *opt_sort = session_setting_oneval(sdb, PZ_SORT);
810 const char *opt_preferred = session_setting_oneval(sdb, PZ_PREFERRED);
811 const char *extra_args = session_setting_oneval(sdb, PZ_EXTRA_ARGS);
812 const char *opt_present_chunk = session_setting_oneval(sdb, PZ_PRESENT_CHUNK);
814 char maxrecs_str[24], startrecs_str[24], present_chunk_str[24];
816 int present_chunk = 20; // Default chunk size
817 int rc_prep_connection;
820 yaz_gettimeofday(&tval);
823 if (opt_present_chunk && strcmp(opt_present_chunk,"")) {
824 present_chunk = atoi(opt_present_chunk);
825 yaz_log(YLOG_DEBUG, "Present chunk set to %d", present_chunk);
828 client_prep_connection(cl, se->service->z3950_operation_timeout,
829 se->service->z3950_session_timeout,
830 se->service->server->iochan_man,
832 /* Nothing has changed and we already have a result */
833 if (cl->same_search == 1 && rc_prep_connection == 2)
835 session_log(se, YLOG_LOG, "client %s REUSE result", client_get_id(cl));
836 return client_reingest(cl);
838 else if (!rc_prep_connection)
840 session_log(se, YLOG_LOG, "client %s FAILED to search: No connection.", client_get_id(cl));
843 co = client_get_connection(cl);
845 link = connection_get_link(co);
848 session_log(se, YLOG_LOG, "client %s NEW search", client_get_id(cl));
853 if (extra_args && *extra_args)
854 ZOOM_connection_option_set(link, "extraArgs", extra_args);
857 cl->preferred = atoi(opt_preferred);
859 yaz_log(YLOG_LOG, "Target %s has preferred status: %d",
860 client_get_id(cl), cl->preferred);
864 ZOOM_connection_option_set(link, "piggyback", opt_piggyback);
866 ZOOM_connection_option_set(link, "piggyback", "1");
868 ZOOM_connection_option_set(link, "rpnCharset", opt_queryenc);
869 if (*opt_sru && *opt_elements)
870 ZOOM_connection_option_set(link, "schema", opt_elements);
871 else if (*opt_elements)
872 ZOOM_connection_option_set(link, "elementSetName", opt_elements);
874 ZOOM_connection_option_set(link, "preferredRecordSyntax", opt_requestsyn);
876 if (opt_maxrecs && *opt_maxrecs)
878 cl->maxrecs = atoi(opt_maxrecs);
881 /* convert back to string representation used in ZOOM API */
882 sprintf(maxrecs_str, "%d", cl->maxrecs);
883 ZOOM_connection_option_set(link, "count", maxrecs_str);
885 /* A present_chunk less than 1 will disable chunking. */
886 if (present_chunk > 0 && cl->maxrecs > present_chunk) {
887 sprintf(present_chunk_str, "%d", present_chunk);
888 ZOOM_connection_option_set(link, "presentChunk", present_chunk_str);
889 yaz_log(YLOG_DEBUG, "Present chunk set to %s", present_chunk_str);
892 ZOOM_connection_option_set(link, "presentChunk", maxrecs_str);
893 yaz_log(YLOG_DEBUG, "Present chunk set to %s (maxrecs)", maxrecs_str);
895 sprintf(startrecs_str, "%d", cl->startrecs);
896 ZOOM_connection_option_set(link, "start", startrecs_str);
898 /* TODO Verify does it break something for CQL targets(non-SOLR) ? */
899 /* facets definition is in PQF */
900 client_set_facets_request(cl, link);
902 query = ZOOM_query_create();
905 yaz_log(YLOG_LOG, "Client %s: Search CQL: %s", client_get_id(cl), cl->cqlquery);
906 ZOOM_query_cql(query, cl->cqlquery);
908 ZOOM_query_sortby(query, opt_sort);
912 yaz_log(YLOG_LOG, "Client %s: Search PQF: %s", client_get_id(cl), cl->pquery);
914 ZOOM_query_prefix(query, cl->pquery);
916 if (cl->sort_strategy && cl->sort_criteria) {
917 yaz_log(YLOG_LOG, "Client %s: Setting ZOOM sort strategy and criteria: %s %s",
918 client_get_id(cl), cl->sort_strategy, cl->sort_criteria);
919 ZOOM_query_sortby2(query, cl->sort_strategy, cl->sort_criteria);
922 yaz_log(YLOG_DEBUG,"Client %s: Starting search", client_get_id(cl));
923 client_set_state(cl, Client_Working);
925 cl->record_offset = 0;
926 rs = ZOOM_connection_search(link, query);
927 ZOOM_query_destroy(query);
928 ZOOM_resultset_destroy(cl->resultset);
930 connection_continue(co);
934 struct client *client_create(const char *id)
936 struct client *cl = xmalloc(sizeof(*cl));
947 cl->record_offset = 0;
950 cl->state = Client_Disconnected;
956 cl->facet_limits = 0;
957 cl->sort_strategy = 0;
958 cl->sort_criteria = 0;
960 cl->id = xstrdup(id);
966 void client_incref(struct client *c)
969 yaz_log(YLOG_DEBUG, "client_incref c=%p %s cnt=%d",
970 c, client_get_id(c), c->ref_count);
973 int client_destroy(struct client *c)
977 yaz_log(YLOG_DEBUG, "client_destroy c=%p %s cnt=%d",
978 c, client_get_id(c), c->ref_count);
979 if (--c->ref_count == 0)
990 xfree(c->sort_strategy);
991 xfree(c->sort_criteria);
992 assert(!c->connection);
993 facet_limits_destroy(c->facet_limits);
997 ZOOM_resultset_destroy(c->resultset);
1007 void client_set_connection(struct client *cl, struct connection *con)
1010 ZOOM_resultset_release(cl->resultset);
1013 assert(cl->connection == 0);
1014 cl->connection = con;
1019 cl->connection = con;
1024 void client_disconnect(struct client *cl)
1026 if (cl->state != Client_Idle)
1027 client_set_state(cl, Client_Disconnected);
1028 client_set_connection(cl, 0);
1032 // Initialize CCL map for a target
1033 static CCL_bibset prepare_cclmap(struct client *cl, CCL_bibset base_bibset)
1035 struct session_database *sdb = client_get_database(cl);
1042 res = ccl_qual_dup(base_bibset);
1044 res = ccl_qual_mk();
1045 for (s = sdb->settings[PZ_CCLMAP]; s; s = s->next)
1047 const char *addinfo = 0;
1048 char *p = strchr(s->name + 3, ':');
1051 WRBUF w = wrbuf_alloc();
1052 wrbuf_printf(w, "Malformed cclmap. name=%s", s->name);
1053 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1054 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1055 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1057 client_set_state_nb(cl, Client_Error);
1063 if (ccl_qual_fitem2(res, s->value, p, &addinfo))
1065 WRBUF w = wrbuf_alloc();
1067 wrbuf_printf(w, "Malformed cclmap. name=%s: value=%s (%s)",
1068 s->name, p, addinfo);
1069 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1070 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG,
1071 ZOOM_diag_str(ZOOM_ERROR_CCL_CONFIG),
1073 client_set_state_nb(cl, Client_Error);
1082 // returns a xmalloced CQL query corresponding to the pquery in client
1083 static char *make_cqlquery(struct client *cl, Z_RPNQuery *zquery)
1085 cql_transform_t cqlt = cql_transform_create();
1087 WRBUF wrb = wrbuf_alloc();
1090 if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
1092 yaz_log(YLOG_WARN, "Failed to generate CQL query, code=%d", status);
1096 r = xstrdup(wrbuf_cstr(wrb));
1099 cql_transform_close(cqlt);
1103 // returns a xmalloced SOLR query corresponding to the pquery in client
1104 // TODO Could prob. be merge with the similar make_cqlquery
1105 static char *make_solrquery(struct client *cl, Z_RPNQuery *zquery)
1107 solr_transform_t sqlt = solr_transform_create();
1109 WRBUF wrb = wrbuf_alloc();
1112 if ((status = solr_transform_rpn2solr_wrbuf(sqlt, wrb, zquery)))
1114 yaz_log(YLOG_WARN, "Failed to generate SOLR query, code=%d", status);
1118 r = xstrdup(wrbuf_cstr(wrb));
1121 solr_transform_close(sqlt);
1125 const char *client_get_facet_limit_local(struct client *cl,
1126 struct session_database *sdb,
1128 NMEM nmem, int *num, char ***values)
1130 const char *name = 0;
1131 const char *value = 0;
1132 for (; (name = facet_limits_get(cl->facet_limits, *l, &value)); (*l)++)
1134 struct setting *s = 0;
1136 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1138 const char *p = strchr(s->name + 3, ':');
1139 if (p && !strcmp(p + 1, name) && s->value)
1143 nmem_strsplit_escape2(nmem, ",", s->value, &cvalues,
1145 for (j = 0; j < cnum; j++)
1147 const char *cvalue = cvalues[j];
1148 while (*cvalue == ' ')
1150 if (!strncmp(cvalue, "local:", 6))
1152 const char *cp = cvalue + 6;
1155 nmem_strsplit_escape2(nmem, "|", value, values,
1158 return *cp ? cp : name;
1167 static int apply_limit(struct session_database *sdb,
1168 facet_limits_t facet_limits,
1169 WRBUF w_pqf, CCL_bibset ccl_map,
1170 struct conf_service *service)
1177 NMEM nmem_tmp = nmem_create();
1178 for (i = 0; (name = facet_limits_get(facet_limits, i, &value)); i++)
1180 struct setting *s = 0;
1181 nmem_reset(nmem_tmp);
1182 /* name="pz:limitmap:author" value="rpn:@attr 1=4|local:other" */
1183 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1185 const char *p = strchr(s->name + 3, ':');
1186 if (p && !strcmp(p + 1, name) && s->value)
1192 nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
1195 nmem_strsplit_escape2(nmem_tmp, ",", s->value, &cvalues,
1198 for (j = 0; ret == 0 && j < cnum; j++)
1200 const char *cvalue = cvalues[j];
1201 while (*cvalue == ' ')
1203 if (!strncmp(cvalue, "rpn:", 4))
1205 const char *pqf = cvalue + 4;
1206 wrbuf_puts(w_pqf, "@and ");
1207 wrbuf_puts(w_pqf, pqf);
1208 wrbuf_puts(w_pqf, " ");
1209 for (i = 0; i < num; i++)
1212 wrbuf_puts(w_pqf, "@or ");
1213 yaz_encode_pqf_term(w_pqf, values[i],
1217 else if (!strncmp(cvalue, "ccl:", 4))
1219 const char *ccl = cvalue + 4;
1220 WRBUF ccl_w = wrbuf_alloc();
1221 for (i = 0; i < num; i++)
1224 struct ccl_rpn_node *cn;
1225 wrbuf_rewind(ccl_w);
1226 wrbuf_puts(ccl_w, ccl);
1227 wrbuf_puts(ccl_w, "=\"");
1228 wrbuf_puts(ccl_w, values[i]);
1229 wrbuf_puts(ccl_w, "\"");
1231 cn = ccl_find_str(ccl_map, wrbuf_cstr(ccl_w),
1236 wrbuf_printf(w_pqf, "@and ");
1238 /* or multiple values.. could be bad if last
1239 CCL parse fails, but this is unlikely to
1242 wrbuf_printf(w_pqf, "@or ");
1243 ccl_pquery(w_pqf, cn);
1247 wrbuf_destroy(ccl_w);
1249 else if (!strncmp(cvalue, "local:", 6)) {
1254 yaz_log(YLOG_WARN, "Target %s: Bad limitmap '%s'",
1255 sdb->database->id, cvalue);
1256 ret = -1; /* bad limitmap */
1265 for (i = 0; i < service->num_metadata; i++)
1267 struct conf_metadata *md = service->metadata + i;
1268 if (!strcmp(md->name, name) && md->limitcluster)
1270 yaz_log(YLOG_LOG, "limitcluster in use for %s",
1275 if (i == service->num_metadata)
1277 yaz_log(YLOG_WARN, "Target %s: limit %s used, but no limitmap defined",
1278 (sdb->database ? sdb->database->id : "<no id>"), name);
1282 nmem_destroy(nmem_tmp);
1286 // Parse the query given the settings specific to this client
1287 // client variable same_search is set as below as well as returned:
1288 // 0 if query is OK but different from before
1289 // 1 if query is OK but same as before
1290 // return -1 on query error
1291 // return -2 on limit error
1292 int client_parse_query(struct client *cl, const char *query,
1293 facet_limits_t facet_limits)
1295 struct session *se = client_get_session(cl);
1296 struct conf_service *service = se->service;
1297 struct session_database *sdb = client_get_database(cl);
1298 struct ccl_rpn_node *cn;
1301 CCL_bibset ccl_map = prepare_cclmap(cl, service->ccl_bibset);
1302 const char *sru = session_setting_oneval(sdb, PZ_SRU);
1303 const char *pqf_prefix = session_setting_oneval(sdb, PZ_PQF_PREFIX);
1304 const char *pqf_strftime = session_setting_oneval(sdb, PZ_PQF_STRFTIME);
1305 const char *query_syntax = session_setting_oneval(sdb, PZ_QUERY_SYNTAX);
1313 w_ccl = wrbuf_alloc();
1314 wrbuf_puts(w_ccl, query);
1316 w_pqf = wrbuf_alloc();
1319 wrbuf_puts(w_pqf, pqf_prefix);
1320 wrbuf_puts(w_pqf, " ");
1323 if (apply_limit(sdb, facet_limits, w_pqf, ccl_map, service))
1325 ccl_qual_rm(&ccl_map);
1329 facet_limits_destroy(cl->facet_limits);
1330 cl->facet_limits = facet_limits_dup(facet_limits);
1332 yaz_log(YLOG_LOG, "Client %s: CCL query: %s limit: %s", client_get_id(cl), wrbuf_cstr(w_ccl), wrbuf_cstr(w_pqf));
1333 cn = ccl_find_str(ccl_map, wrbuf_cstr(w_ccl), &cerror, &cpos);
1334 ccl_qual_rm(&ccl_map);
1337 client_set_state(cl, Client_Error);
1338 session_log(se, YLOG_WARN, "Client %s: Failed to parse CCL query '%s'",
1341 wrbuf_destroy(w_ccl);
1342 wrbuf_destroy(w_pqf);
1345 wrbuf_destroy(w_ccl);
1347 if (!pqf_strftime || !*pqf_strftime)
1348 ccl_pquery(w_pqf, cn);
1351 time_t cur_time = time(0);
1352 struct tm *tm = localtime(&cur_time);
1354 const char *cp = tmp_str;
1356 /* see man strftime(3) for things .. In particular %% gets converted
1357 to %.. And That's our original query .. */
1358 strftime(tmp_str, sizeof(tmp_str)-1, pqf_strftime, tm);
1362 ccl_pquery(w_pqf, cn);
1364 wrbuf_putc(w_pqf, cp[0]);
1368 /* Compares query and limit with old one. If different we need to research */
1369 if (!cl->pquery || strcmp(cl->pquery, wrbuf_cstr(w_pqf)))
1372 session_log(se, YLOG_LOG, "Client %s: Re-search due query/limit change: %s to %s",
1373 client_get_id(cl), cl->pquery, wrbuf_cstr(w_pqf));
1375 cl->pquery = xstrdup(wrbuf_cstr(w_pqf));
1376 // return value is no longer used.
1378 // Need to (re)search
1381 wrbuf_destroy(w_pqf);
1383 xfree(cl->cqlquery);
1386 odr_out = odr_createmem(ODR_ENCODE);
1387 zquery = p_query_rpn(odr_out, cl->pquery);
1391 session_log(se, YLOG_WARN, "Invalid PQF query for Client %s: %s",
1392 client_get_id(cl), cl->pquery);
1397 session_log(se, YLOG_LOG, "PQF for Client %s: %s",
1398 client_get_id(cl), cl->pquery);
1400 /* Support for PQF on SRU targets. */
1401 if (strcmp(query_syntax, "pqf") != 0 && *sru)
1403 if (!strcmp(sru, "solr"))
1404 cl->cqlquery = make_solrquery(cl, zquery);
1406 cl->cqlquery = make_cqlquery(cl, zquery);
1410 session_log(se, YLOG_LOG, "Client %s native query: %s (%s)",
1411 client_get_id(cl), cl->cqlquery, sru);
1414 odr_destroy(odr_out);
1416 /* TODO FIX Not thread safe */
1419 // Initialize relevance structure with query terms
1420 se->relevance = relevance_create_ccl(se->service->charsets, cn,
1421 se->service->rank_cluster,
1422 se->service->rank_follow,
1423 se->service->rank_lead,
1424 se->service->rank_length);
1430 int client_parse_sort(struct client *cl, struct reclist_sortparms *sp)
1434 const char *sort_strategy_and_spec =
1435 get_strategy_plus_sort(cl, sp->name);
1436 int increasing = sp->increasing;
1437 if (sort_strategy_and_spec && strlen(sort_strategy_and_spec) < 40)
1439 char strategy[50], *p;
1440 strcpy(strategy, sort_strategy_and_spec);
1441 p = strchr(strategy, ':');
1444 // Split the string in two
1452 yaz_log(YLOG_LOG, "Client %s: applying sorting %s %s", client_get_id(cl), strategy, p);
1453 if (!cl->sort_strategy || strcmp(cl->sort_strategy, strategy))
1454 cl->same_search = 0;
1455 if (!cl->sort_criteria || strcmp(cl->sort_criteria, p))
1456 cl->same_search = 0;
1457 if (cl->same_search == 0) {
1458 xfree(cl->sort_strategy);
1459 cl->sort_strategy = xstrdup(strategy);
1460 xfree(cl->sort_criteria);
1461 cl->sort_criteria = xstrdup(p);
1465 yaz_log(YLOG_LOG, "Client %s: Invalid sort strategy and spec found %s", client_get_id(cl), sort_strategy_and_spec);
1466 xfree(cl->sort_strategy);
1467 cl->sort_strategy = 0;
1468 xfree(cl->sort_criteria);
1469 cl->sort_criteria = 0;
1472 yaz_log(YLOG_DEBUG, "Client %s: No sort strategy and spec found.", client_get_id(cl));
1473 xfree(cl->sort_strategy);
1474 cl->sort_strategy = 0;
1475 xfree(cl->sort_criteria);
1476 cl->sort_criteria = 0;
1480 return !cl->same_search;
1483 void client_set_session(struct client *cl, struct session *se)
1488 int client_is_active(struct client *cl)
1490 if (cl->connection && (cl->state == Client_Connecting ||
1491 cl->state == Client_Working))
1496 int client_is_active_preferred(struct client *cl)
1498 /* only count if this is a preferred target. */
1501 /* TODO No sure this the condition that Seb wants */
1502 if (cl->connection && (cl->state == Client_Connecting ||
1503 cl->state == Client_Working))
1508 Odr_int client_get_hits(struct client *cl)
1513 Odr_int client_get_approximation(struct client *cl)
1515 if (cl->record_offset > 0) {
1516 Odr_int approx = ((10 * cl->hits * (cl->record_offset - cl->filtered)) / cl->record_offset + 5) /10;
1517 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);
1523 int client_get_num_records(struct client *cl)
1525 return cl->record_offset;
1528 int client_get_num_records_filtered(struct client *cl)
1530 return cl->filtered;
1533 void client_set_diagnostic(struct client *cl, int diagnostic,
1534 const char *message, const char *addinfo)
1536 cl->diagnostic = diagnostic;
1538 cl->message = xstrdup(message);
1542 cl->addinfo = xstrdup(addinfo);
1545 int client_get_diagnostic(struct client *cl, const char **message,
1546 const char **addinfo)
1549 *message = cl->message;
1551 *addinfo = cl->addinfo;
1552 return cl->diagnostic;
1555 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf)
1558 struct suggestions *suggestions = cl->suggestions;
1561 //yaz_log(YLOG_DEBUG, "No suggestions found");
1564 if (suggestions->passthrough) {
1565 yaz_log(YLOG_DEBUG, "Passthrough Suggestions: \n%s\n", suggestions->passthrough);
1566 return suggestions->passthrough;
1568 if (suggestions->num == 0) {
1572 for (idx = 0; idx < suggestions->num; idx++) {
1573 wrbuf_printf(wrbuf, "<suggest term=\"%s\"", suggestions->suggest[idx]);
1574 if (suggestions->misspelled[idx] && suggestions->misspelled[idx]) {
1575 wrbuf_puts(wrbuf, suggestions->misspelled[idx]);
1576 wrbuf_puts(wrbuf, "</suggest>\n");
1579 wrbuf_puts(wrbuf, "/>\n");
1582 return wrbuf_cstr(wrbuf);
1586 void client_set_database(struct client *cl, struct session_database *db)
1591 const char *client_get_id(struct client *cl)
1596 int client_get_maxrecs(struct client *cl)
1601 void client_set_preferred(struct client *cl, int v)
1607 struct suggestions* client_suggestions_create(const char* suggestions_string)
1611 struct suggestions *suggestions;
1612 if (suggestions_string == 0 || suggestions_string[0] == 0 )
1614 nmem = nmem_create();
1615 suggestions = nmem_malloc(nmem, sizeof(*suggestions));
1616 yaz_log(YLOG_DEBUG, "client target suggestions: %s.", suggestions_string);
1618 suggestions->nmem = nmem;
1619 suggestions->num = 0;
1620 suggestions->misspelled = 0;
1621 suggestions->suggest = 0;
1622 suggestions->passthrough = nmem_strdup_null(nmem, suggestions_string);
1624 if (suggestions_string)
1625 nmem_strsplit_escape2(suggestions->nmem, "\n", suggestions_string, &suggestions->suggest,
1626 &suggestions->num, 1, '\\', 0);
1627 /* Set up misspelled array */
1628 suggestions->misspelled = (char **) nmem_malloc(nmem, suggestions->num * sizeof(**suggestions->misspelled));
1629 /* replace = with \0 .. for each item */
1630 for (i = 0; i < suggestions->num; i++)
1632 char *cp = strchr(suggestions->suggest[i], '=');
1635 suggestions->misspelled[i] = cp+1;
1641 static void client_suggestions_destroy(struct client *cl)
1643 NMEM nmem = cl->suggestions->nmem;
1644 cl->suggestions = 0;
1648 int client_test_sort_order(struct client *cl, struct reclist_sortparms *sp)
1650 //TODO implement correctly.
1656 * c-file-style: "Stroustrup"
1657 * indent-tabs-mode: nil
1659 * vim: shiftwidth=4 tabstop=8 expandtab