1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2012 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
39 #include <yaz/marcdisp.h>
40 #include <yaz/comstack.h>
41 #include <yaz/tcpip.h>
42 #include <yaz/proto.h>
43 #include <yaz/readconf.h>
44 #include <yaz/pquery.h>
45 #include <yaz/otherinfo.h>
46 #include <yaz/yaz-util.h>
48 #include <yaz/query-charset.h>
49 #include <yaz/querytowrbuf.h>
50 #include <yaz/oid_db.h>
51 #include <yaz/diagbib1.h>
52 #include <yaz/snprintf.h>
53 #include <yaz/rpn2cql.h>
54 #include <yaz/rpn2solr.h>
55 #include <yaz/gettimeofday.h>
59 #include <yaz/timing.h>
64 #include "parameters.h"
66 #include "connection.h"
68 #include "relevance.h"
71 static YAZ_MUTEX g_mutex = 0;
72 static int no_clients = 0;
73 static int no_clients_total = 0;
75 static int client_use(int delta)
79 yaz_mutex_create(&g_mutex);
80 yaz_mutex_enter(g_mutex);
83 no_clients_total += delta;
85 yaz_mutex_leave(g_mutex);
86 yaz_log(YLOG_DEBUG, "%s clients=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), clients);
90 int clients_count(void) {
94 int clients_count_total(void) {
98 yaz_mutex_enter(g_mutex);
99 total = no_clients_total;
100 yaz_mutex_leave(g_mutex);
105 /** \brief Represents client state for a connection to one search target */
107 struct session_database *database;
108 struct connection *connection;
109 struct session *session;
110 char *pquery; // Current search
111 char *cqlquery; // used for SRU targets only
112 char *addinfo; // diagnostic info for most resent error
115 int filtered; // When using local:, this will count the number of filtered records.
120 struct suggestions *suggestions;
121 enum client_state state;
122 struct show_raw *show_raw;
123 ZOOM_resultset resultset;
127 facet_limits_t facet_limits;
142 int active; // whether this request has been sent to the server
148 void (*error_handler)(void *data, const char *addinfo);
149 void (*record_handler)(void *data, const char *buf, size_t sz);
151 struct show_raw *next;
154 static const char *client_states[] = {
160 "Client_Disconnected"
163 const char *client_get_state_str(struct client *cl)
165 return client_states[cl->state];
168 enum client_state client_get_state(struct client *cl)
173 void client_set_state_nb(struct client *cl, enum client_state st)
178 void client_set_state(struct client *cl, enum client_state st)
181 if (client_is_active(cl))
184 /* If client is going from being active to inactive and all clients
185 are now idle we fire a watch for the session . The assumption is
186 that session is not mutex locked if client is already active */
187 if (was_active && !client_is_active(cl) && cl->session)
190 int no_active = session_active_clients(cl->session);
191 yaz_log(YLOG_DEBUG, "%s: releasing watches on zero active: %d",
192 client_get_id(cl), no_active);
193 if (no_active == 0) {
194 session_alert_watch(cl->session, SESSION_WATCH_SHOW);
195 session_alert_watch(cl->session, SESSION_WATCH_BYTARGET);
196 session_alert_watch(cl->session, SESSION_WATCH_TERMLIST);
197 session_alert_watch(cl->session, SESSION_WATCH_SHOW_PREF);
202 static void client_show_raw_error(struct client *cl, const char *addinfo);
204 struct connection *client_get_connection(struct client *cl)
206 return cl->connection;
209 struct session_database *client_get_database(struct client *cl)
214 struct session *client_get_session(struct client *cl)
219 const char *client_get_pquery(struct client *cl)
224 static void client_send_raw_present(struct client *cl);
225 static int nativesyntax_to_type(const char *s, char *type, ZOOM_record rec);
227 static void client_show_immediate(
228 ZOOM_resultset resultset, struct session_database *sdb, int position,
230 void (*error_handler)(void *data, const char *addinfo),
231 void (*record_handler)(void *data, const char *buf, size_t sz),
233 const char *nativesyntax)
242 error_handler(data, "no resultset");
245 rec = ZOOM_resultset_record_immediate(resultset, position-1);
248 error_handler(data, "no record");
251 nativesyntax_to_type(nativesyntax, type, rec);
252 buf = ZOOM_record_get(rec, type, &len);
255 error_handler(data, "no record");
258 record_handler(data, buf, len);
262 int client_show_raw_begin(struct client *cl, int position,
263 const char *syntax, const char *esn,
265 void (*error_handler)(void *data, const char *addinfo),
266 void (*record_handler)(void *data, const char *buf,
269 const char *nativesyntax)
274 nativesyntax = "raw";
277 struct session_database *sdb = client_get_database(cl);
278 nativesyntax = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
282 if (syntax == 0 && esn == 0)
283 client_show_immediate(cl->resultset, client_get_database(cl),
285 error_handler, record_handler,
286 binary, nativesyntax);
289 struct show_raw *rr, **rrp;
295 rr = xmalloc(sizeof(*rr));
296 rr->position = position;
299 rr->error_handler = error_handler;
300 rr->record_handler = record_handler;
303 rr->syntax = xstrdup(syntax);
307 rr->esn = xstrdup(esn);
311 assert(nativesyntax);
312 rr->nativesyntax = xstrdup(nativesyntax);
316 for (rrp = &cl->show_raw; *rrp; rrp = &(*rrp)->next)
320 if (cl->state == Client_Failed)
322 client_show_raw_error(cl, "client failed");
324 else if (cl->state == Client_Disconnected)
326 client_show_raw_error(cl, "client disconnected");
330 client_send_raw_present(cl);
336 static void client_show_raw_delete(struct show_raw *r)
340 xfree(r->nativesyntax);
344 void client_show_raw_remove(struct client *cl, void *data)
346 struct show_raw *rr = data;
347 struct show_raw **rrp = &cl->show_raw;
353 client_show_raw_delete(rr);
357 void client_show_raw_dequeue(struct client *cl)
359 struct show_raw *rr = cl->show_raw;
361 cl->show_raw = rr->next;
362 client_show_raw_delete(rr);
365 static void client_show_raw_error(struct client *cl, const char *addinfo)
369 cl->show_raw->error_handler(cl->show_raw->data, addinfo);
370 client_show_raw_dequeue(cl);
374 static void client_send_raw_present(struct client *cl)
376 struct session_database *sdb = client_get_database(cl);
377 struct connection *co = client_get_connection(cl);
378 ZOOM_resultset set = cl->resultset;
380 int offset = cl->show_raw->position;
381 const char *syntax = 0;
382 const char *elements = 0;
384 assert(cl->show_raw);
387 yaz_log(YLOG_DEBUG, "%s: trying to present %d record(s) from %d",
388 client_get_id(cl), 1, offset);
390 if (cl->show_raw->syntax)
391 syntax = cl->show_raw->syntax;
393 syntax = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
394 ZOOM_resultset_option_set(set, "preferredRecordSyntax", syntax);
396 if (cl->show_raw->esn)
397 elements = cl->show_raw->esn;
399 elements = session_setting_oneval(sdb, PZ_ELEMENTS);
400 if (elements && *elements)
401 ZOOM_resultset_option_set(set, "elementSetName", elements);
403 ZOOM_resultset_records(set, 0, offset-1, 1);
404 cl->show_raw->active = 1;
406 connection_continue(co);
409 static int nativesyntax_to_type(const char *s, char *type,
414 if (!strncmp(s, "iso2709", 7))
416 const char *cp = strchr(s, ';');
417 yaz_snprintf(type, 80, "xml; charset=%s", cp ? cp+1 : "marc-8s");
419 else if (!strncmp(s, "txml", 4))
421 const char *cp = strchr(s, ';');
422 yaz_snprintf(type, 80, "txml; charset=%s", cp ? cp+1 : "marc-8s");
424 else /* pass verbatim to ZOOM - including "xml" */
428 else /* attempt to deduce structure */
430 const char *syntax = ZOOM_record_get(rec, "syntax", NULL);
433 if (!strcmp(syntax, "XML"))
438 else if (!strcmp(syntax, "USmarc") || !strcmp(syntax, "MARC21"))
440 strcpy(type, "xml; charset=marc8-s");
450 * TODO Consider thread safety!!!
453 void client_report_facets(struct client *cl, ZOOM_resultset rs)
455 struct session_database *sdb = client_get_database(cl);
456 ZOOM_facet_field *facets = ZOOM_resultset_facets(rs);
460 struct session *se = client_get_session(cl);
461 int facet_num = ZOOM_resultset_facets_size(rs);
464 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
466 const char *p = strchr(s->name + 3, ':');
467 if (p && p[1] && s->value && s->value[0])
470 p++; /* p now holds logical facet name */
471 for (facet_idx = 0; facet_idx < facet_num; facet_idx++)
473 const char *native_name =
474 ZOOM_facet_field_name(facets[facet_idx]);
475 if (native_name && !strcmp(s->value, native_name))
479 ZOOM_facet_field_term_count(facets[facet_idx]);
480 for (term_idx = 0; term_idx < term_num; term_idx++ )
484 ZOOM_facet_field_get_term(facets[facet_idx],
487 add_facet(se, p, term, freq);
497 static void ingest_raw_record(struct client *cl, ZOOM_record rec)
503 nativesyntax_to_type(cl->show_raw->nativesyntax, type, rec);
504 buf = ZOOM_record_get(rec, type, &len);
505 cl->show_raw->record_handler(cl->show_raw->data, buf, len);
506 client_show_raw_dequeue(cl);
509 void client_check_preferred_watch(struct client *cl)
511 struct session *se = cl->session;
512 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: %s ", client_get_id(cl));
516 /* TODO possible threading issue. Session can have been destroyed */
517 if (session_is_preferred_clients_ready(se)) {
518 session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
521 yaz_log(YLOG_DEBUG, "client_check_preferred_watch: Still locked on preferred targets.");
526 yaz_log(YLOG_WARN, "client_check_preferred_watch: %s. No session!", client_get_id(cl));
530 struct suggestions* client_suggestions_create(const char* suggestions_string);
531 static void client_suggestions_destroy(struct client *cl);
533 void client_search_response(struct client *cl)
535 struct connection *co = cl->connection;
536 ZOOM_connection link = connection_get_link(co);
537 ZOOM_resultset resultset = cl->resultset;
539 const char *error, *addinfo = 0;
541 if (ZOOM_connection_error(link, &error, &addinfo))
544 client_set_state(cl, Client_Error);
545 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
546 error, addinfo, client_get_id(cl));
550 client_report_facets(cl, resultset);
551 cl->record_offset = cl->startrecs;
552 cl->hits = ZOOM_resultset_size(resultset);
553 yaz_log(YLOG_DEBUG, "client_search_response: hits " ODR_INT_PRINTF, cl->hits);
555 client_suggestions_destroy(cl);
556 cl->suggestions = client_suggestions_create(ZOOM_resultset_option_get(resultset, "suggestions"));
560 void client_got_records(struct client *cl)
562 struct session *se = cl->session;
565 if (reclist_get_num_records(se->reclist) > 0)
568 session_alert_watch(se, SESSION_WATCH_SHOW);
569 session_alert_watch(se, SESSION_WATCH_BYTARGET);
570 session_alert_watch(se, SESSION_WATCH_TERMLIST);
571 session_alert_watch(se, SESSION_WATCH_RECORD);
577 static void client_record_ingest(struct client *cl)
579 const char *msg, *addinfo;
581 ZOOM_resultset resultset = cl->resultset;
582 int offset = cl->record_offset;
583 if ((rec = ZOOM_resultset_record_immediate(resultset, offset)))
586 if (cl->session == 0) {
589 else if (ZOOM_record_error(rec, &msg, &addinfo, 0))
591 yaz_log(YLOG_WARN, "Record error %s (%s): %s (rec #%d)",
592 msg, addinfo, client_get_id(cl), cl->record_offset);
596 struct session_database *sdb = client_get_database(cl);
597 NMEM nmem = nmem_create();
601 const char *s = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
602 if (nativesyntax_to_type(s, type, rec))
603 yaz_log(YLOG_WARN, "Failed to determine record type");
604 xmlrec = ZOOM_record_get(rec, type, NULL);
606 yaz_log(YLOG_WARN, "ZOOM_record_get failed from %s",
610 /* OK = 0, -1 = failure, -2 = Filtered */
611 int rc = ingest_record(cl, xmlrec, cl->record_offset, nmem);
613 yaz_log(YLOG_WARN, "Failed to ingest from %s", client_get_id(cl));
622 yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d", offset);
626 void client_record_response(struct client *cl)
628 struct connection *co = cl->connection;
629 ZOOM_connection link = connection_get_link(co);
630 ZOOM_resultset resultset = cl->resultset;
631 const char *error, *addinfo;
633 if (ZOOM_connection_error(link, &error, &addinfo))
635 client_set_state(cl, Client_Error);
636 yaz_log(YLOG_WARN, "Search error %s (%s): %s",
637 error, addinfo, client_get_id(cl));
641 if (cl->show_raw && cl->show_raw->active)
644 if ((rec = ZOOM_resultset_record_immediate(
645 resultset, cl->show_raw->position-1)))
647 cl->show_raw->active = 0;
648 ingest_raw_record(cl, rec);
652 yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d",
653 cl->show_raw->position-1);
658 client_record_ingest(cl);
663 int client_reingest(struct client *cl)
665 int i = cl->startrecs;
666 int to = cl->record_offset;
669 cl->record_offset = i;
671 client_record_ingest(cl);
675 static void client_set_facets_request(struct client *cl, ZOOM_connection link)
677 struct session_database *sdb = client_get_database(cl);
679 WRBUF w = wrbuf_alloc();
683 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
685 const char *p = strchr(s->name + 3, ':');
688 yaz_log(YLOG_WARN, "Malformed facetmap name: %s", s->name);
690 else if (s->value && s->value[0])
692 wrbuf_puts(w, "@attr 1=");
693 yaz_encode_pqf_term(w, s->value, strlen(s->value));
698 yaz_log(YLOG_DEBUG, "using facets str: %s", wrbuf_cstr(w));
699 ZOOM_connection_option_set(link, "facets",
700 wrbuf_len(w) ? wrbuf_cstr(w) : 0);
704 int client_has_facet(struct client *cl, const char *name)
706 struct session_database *sdb = client_get_database(cl);
709 for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
711 const char *p = strchr(s->name + 3, ':');
712 if (p && !strcmp(name, p + 1))
718 static const char *get_strategy_plus_sort(struct client *l, const char *field)
720 struct session_database *sdb = client_get_database(l);
723 const char *strategy_plus_sort = 0;
725 for (s = sdb->settings[PZ_SORTMAP]; s; s = s->next)
727 char *p = strchr(s->name + 3, ':');
730 yaz_log(YLOG_WARN, "Malformed sortmap name: %s", s->name);
734 if (!strcmp(p, field))
736 strategy_plus_sort = s->value;
740 return strategy_plus_sort;
743 int client_parse_init(struct client *cl, int same_search)
745 cl->same_search = same_search;
750 * TODO consider how to extend the range
752 int client_parse_range(struct client *cl, const char *startrecs, const char *maxrecs)
754 if (maxrecs && atoi(maxrecs) != cl->maxrecs)
757 cl->maxrecs = atoi(maxrecs);
760 if (startrecs && atoi(startrecs) != cl->startrecs)
763 cl->startrecs = atoi(startrecs);
769 int client_start_search(struct client *cl)
771 struct session_database *sdb = client_get_database(cl);
772 struct connection *co = 0;
773 ZOOM_connection link = 0;
774 struct session *se = client_get_session(cl);
776 const char *opt_piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK);
777 const char *opt_queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING);
778 const char *opt_elements = session_setting_oneval(sdb, PZ_ELEMENTS);
779 const char *opt_requestsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
780 const char *opt_maxrecs = session_setting_oneval(sdb, PZ_MAXRECS);
781 const char *opt_sru = session_setting_oneval(sdb, PZ_SRU);
782 const char *opt_sort = session_setting_oneval(sdb, PZ_SORT);
783 const char *opt_preferred = session_setting_oneval(sdb, PZ_PREFERRED);
784 const char *extra_args = session_setting_oneval(sdb, PZ_EXTRA_ARGS);
785 const char *opt_present_chunk = session_setting_oneval(sdb, PZ_PRESENT_CHUNK);
787 char maxrecs_str[24], startrecs_str[24], present_chunk_str[24];
789 int present_chunk = 20; // Default chunk size
790 int rc_prep_connection;
793 yaz_gettimeofday(&tval);
796 if (opt_present_chunk && strcmp(opt_present_chunk,"")) {
797 present_chunk = atoi(opt_present_chunk);
798 yaz_log(YLOG_DEBUG, "Present chunk set to %d", present_chunk);
801 client_prep_connection(cl, se->service->z3950_operation_timeout,
802 se->service->z3950_session_timeout,
803 se->service->server->iochan_man,
805 /* Nothing has changed and we already have a result */
806 if (cl->same_search == 1 && rc_prep_connection == 2)
808 session_log(se, YLOG_LOG, "client %s REUSE result", client_get_id(cl));
809 return client_reingest(cl);
811 else if (!rc_prep_connection)
813 session_log(se, YLOG_LOG, "client %s FAILED to search: No connection.", client_get_id(cl));
816 co = client_get_connection(cl);
818 link = connection_get_link(co);
821 session_log(se, YLOG_LOG, "client %s NEW search", client_get_id(cl));
826 if (extra_args && *extra_args)
827 ZOOM_connection_option_set(link, "extraArgs", extra_args);
830 cl->preferred = atoi(opt_preferred);
832 yaz_log(YLOG_LOG, "Target %s has preferred status: %d",
833 client_get_id(cl), cl->preferred);
837 ZOOM_connection_option_set(link, "piggyback", opt_piggyback);
839 ZOOM_connection_option_set(link, "piggyback", "1");
841 ZOOM_connection_option_set(link, "rpnCharset", opt_queryenc);
842 if (*opt_sru && *opt_elements)
843 ZOOM_connection_option_set(link, "schema", opt_elements);
844 else if (*opt_elements)
845 ZOOM_connection_option_set(link, "elementSetName", opt_elements);
847 ZOOM_connection_option_set(link, "preferredRecordSyntax", opt_requestsyn);
849 if (opt_maxrecs && *opt_maxrecs)
851 cl->maxrecs = atoi(opt_maxrecs);
854 /* convert back to string representation used in ZOOM API */
855 sprintf(maxrecs_str, "%d", cl->maxrecs);
856 ZOOM_connection_option_set(link, "count", maxrecs_str);
858 /* A present_chunk less than 1 will disable chunking. */
859 if (present_chunk > 0 && cl->maxrecs > present_chunk) {
860 sprintf(present_chunk_str, "%d", present_chunk);
861 ZOOM_connection_option_set(link, "presentChunk", present_chunk_str);
862 yaz_log(YLOG_DEBUG, "Present chunk set to %s", present_chunk_str);
865 ZOOM_connection_option_set(link, "presentChunk", maxrecs_str);
866 yaz_log(YLOG_DEBUG, "Present chunk set to %s (maxrecs)", maxrecs_str);
868 sprintf(startrecs_str, "%d", cl->startrecs);
869 ZOOM_connection_option_set(link, "start", startrecs_str);
871 /* TODO Verify does it break something for CQL targets(non-SOLR) ? */
872 /* facets definition is in PQF */
873 client_set_facets_request(cl, link);
875 query = ZOOM_query_create();
878 yaz_log(YLOG_LOG, "Client %s: Search CQL: %s", client_get_id(cl), cl->cqlquery);
879 ZOOM_query_cql(query, cl->cqlquery);
881 ZOOM_query_sortby(query, opt_sort);
885 yaz_log(YLOG_LOG, "Client %s: Search PQF: %s", client_get_id(cl), cl->pquery);
887 ZOOM_query_prefix(query, cl->pquery);
889 if (cl->sort_strategy && cl->sort_criteria) {
890 yaz_log(YLOG_LOG, "Client %s: Setting ZOOM sort strategy and criteria: %s %s",
891 client_get_id(cl), cl->sort_strategy, cl->sort_criteria);
892 ZOOM_query_sortby2(query, cl->sort_strategy, cl->sort_criteria);
895 yaz_log(YLOG_DEBUG,"Client %s: Starting search", client_get_id(cl));
896 client_set_state(cl, Client_Working);
898 cl->record_offset = 0;
899 rs = ZOOM_connection_search(link, query);
900 ZOOM_query_destroy(query);
901 ZOOM_resultset_destroy(cl->resultset);
903 connection_continue(co);
907 struct client *client_create(const char *id)
909 struct client *cl = xmalloc(sizeof(*cl));
919 cl->record_offset = 0;
922 cl->state = Client_Disconnected;
927 pazpar2_mutex_create(&cl->mutex, "client");
930 cl->facet_limits = 0;
931 cl->sort_strategy = 0;
932 cl->sort_criteria = 0;
934 cl->id = xstrdup(id);
940 void client_lock(struct client *c)
942 yaz_mutex_enter(c->mutex);
945 void client_unlock(struct client *c)
947 yaz_mutex_leave(c->mutex);
950 void client_incref(struct client *c)
952 pazpar2_incref(&c->ref_count, c->mutex);
953 yaz_log(YLOG_DEBUG, "client_incref c=%p %s cnt=%d",
954 c, client_get_id(c), c->ref_count);
957 int client_destroy(struct client *c)
961 yaz_log(YLOG_DEBUG, "client_destroy c=%p %s cnt=%d",
962 c, client_get_id(c), c->ref_count);
963 if (!pazpar2_decref(&c->ref_count, c->mutex))
972 assert(!c->connection);
973 facet_limits_destroy(c->facet_limits);
977 ZOOM_resultset_destroy(c->resultset);
979 yaz_mutex_destroy(&c->mutex);
988 void client_set_connection(struct client *cl, struct connection *con)
991 ZOOM_resultset_release(cl->resultset);
994 assert(cl->connection == 0);
995 cl->connection = con;
1000 cl->connection = con;
1005 void client_disconnect(struct client *cl)
1007 if (cl->state != Client_Idle)
1008 client_set_state(cl, Client_Disconnected);
1009 client_set_connection(cl, 0);
1013 // Initialize CCL map for a target
1014 static CCL_bibset prepare_cclmap(struct client *cl, CCL_bibset base_bibset)
1016 struct session_database *sdb = client_get_database(cl);
1023 res = ccl_qual_dup(base_bibset);
1025 res = ccl_qual_mk();
1026 for (s = sdb->settings[PZ_CCLMAP]; s; s = s->next)
1028 const char *addinfo = 0;
1029 char *p = strchr(s->name + 3, ':');
1032 WRBUF w = wrbuf_alloc();
1033 wrbuf_printf(w, "Malformed cclmap. name=%s", s->name);
1034 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1035 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG, wrbuf_cstr(w));
1036 client_set_state_nb(cl, Client_Error);
1042 if (ccl_qual_fitem2(res, s->value, p, &addinfo))
1044 WRBUF w = wrbuf_alloc();
1046 wrbuf_printf(w, "Malformed cclmap. name=%s: value=%s (%s)",
1047 s->name, p, addinfo);
1048 yaz_log(YLOG_WARN, "%s: %s", client_get_id(cl), wrbuf_cstr(w));
1049 client_set_diagnostic(cl, ZOOM_ERROR_CCL_CONFIG, wrbuf_cstr(w));
1050 client_set_state_nb(cl, Client_Error);
1059 // returns a xmalloced CQL query corresponding to the pquery in client
1060 static char *make_cqlquery(struct client *cl, Z_RPNQuery *zquery)
1062 cql_transform_t cqlt = cql_transform_create();
1064 WRBUF wrb = wrbuf_alloc();
1067 if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
1069 yaz_log(YLOG_WARN, "Failed to generate CQL query, code=%d", status);
1073 r = xstrdup(wrbuf_cstr(wrb));
1076 cql_transform_close(cqlt);
1080 // returns a xmalloced SOLR query corresponding to the pquery in client
1081 // TODO Could prob. be merge with the similar make_cqlquery
1082 static char *make_solrquery(struct client *cl, Z_RPNQuery *zquery)
1084 solr_transform_t sqlt = solr_transform_create();
1086 WRBUF wrb = wrbuf_alloc();
1089 if ((status = solr_transform_rpn2solr_wrbuf(sqlt, wrb, zquery)))
1091 yaz_log(YLOG_WARN, "Failed to generate SOLR query, code=%d", status);
1095 r = xstrdup(wrbuf_cstr(wrb));
1098 solr_transform_close(sqlt);
1102 const char *client_get_facet_limit_local(struct client *cl,
1103 struct session_database *sdb,
1105 NMEM nmem, int *num, char ***values)
1107 const char *name = 0;
1108 const char *value = 0;
1109 for (; (name = facet_limits_get(cl->facet_limits, *l, &value)); (*l)++)
1111 struct setting *s = 0;
1113 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1115 const char *p = strchr(s->name + 3, ':');
1116 if (p && !strcmp(p + 1, name) && s->value &&
1117 !strncmp(s->value, "local:", 6))
1119 const char *cp = s->value + 6;
1123 nmem_strsplit_escape2(nmem, "|", value, values,
1126 return *cp ? cp : name;
1133 static int apply_limit(struct session_database *sdb,
1134 facet_limits_t facet_limits,
1135 WRBUF w_pqf, CCL_bibset ccl_map)
1142 NMEM nmem_tmp = nmem_create();
1143 for (i = 0; (name = facet_limits_get(facet_limits, i, &value)); i++)
1145 struct setting *s = 0;
1146 nmem_reset(nmem_tmp);
1147 for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
1149 const char *p = strchr(s->name + 3, ':');
1150 if (p && !strcmp(p + 1, name) && s->value)
1154 nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
1157 if (!strncmp(s->value, "rpn:", 4))
1159 const char *pqf = s->value + 4;
1161 wrbuf_puts(w_pqf, "@and ");
1162 wrbuf_puts(w_pqf, pqf);
1163 wrbuf_puts(w_pqf, " ");
1164 for (i = 0; i < num; i++)
1167 wrbuf_puts(w_pqf, "@or ");
1168 yaz_encode_pqf_term(w_pqf, values[i],
1172 else if (!strncmp(s->value, "ccl:", 4))
1174 const char *ccl = s->value + 4;
1175 WRBUF ccl_w = wrbuf_alloc();
1176 for (i = 0; i < num; i++)
1179 struct ccl_rpn_node *cn;
1181 wrbuf_rewind(ccl_w);
1182 wrbuf_puts(ccl_w, ccl);
1183 wrbuf_puts(ccl_w, "=\"");
1184 wrbuf_puts(ccl_w, values[i]);
1185 wrbuf_puts(ccl_w, "\"");
1187 cn = ccl_find_str(ccl_map, wrbuf_cstr(ccl_w),
1192 wrbuf_printf(w_pqf, "@and ");
1194 /* or multiple values.. could be bad if last CCL
1195 parse fails, but this is unlikely to happen */
1197 wrbuf_printf(w_pqf, "@or ");
1198 ccl_pquery(w_pqf, cn);
1202 wrbuf_destroy(ccl_w);
1204 else if (!strncmp(s->value, "local:", 6)) {
1209 yaz_log(YLOG_WARN, "Target %s: Bad limitmap '%s'",
1210 sdb->database->id, s->value);
1211 ret = -1; /* bad limitmap */
1218 yaz_log(YLOG_WARN, "Target %s: limit %s used, but no limitmap defined",
1219 (sdb->database ? sdb->database->id : "<no id>"), name);
1222 nmem_destroy(nmem_tmp);
1226 // Parse the query given the settings specific to this client
1227 // client variable same_search is set as below as well as returned:
1228 // 0 if query is OK but different from before
1229 // 1 if query is OK but same as before
1230 // return -1 on query error
1231 // return -2 on limit error
1232 int client_parse_query(struct client *cl, const char *query,
1233 facet_limits_t facet_limits,
1236 struct session *se = client_get_session(cl);
1237 struct session_database *sdb = client_get_database(cl);
1238 struct ccl_rpn_node *cn;
1241 CCL_bibset ccl_map = prepare_cclmap(cl, bibset);
1242 const char *sru = session_setting_oneval(sdb, PZ_SRU);
1243 const char *pqf_prefix = session_setting_oneval(sdb, PZ_PQF_PREFIX);
1244 const char *pqf_strftime = session_setting_oneval(sdb, PZ_PQF_STRFTIME);
1245 const char *query_syntax = session_setting_oneval(sdb, PZ_QUERY_SYNTAX);
1253 w_ccl = wrbuf_alloc();
1254 wrbuf_puts(w_ccl, query);
1256 w_pqf = wrbuf_alloc();
1259 wrbuf_puts(w_pqf, pqf_prefix);
1260 wrbuf_puts(w_pqf, " ");
1263 if (apply_limit(sdb, facet_limits, w_pqf, ccl_map))
1265 ccl_qual_rm(&ccl_map);
1269 facet_limits_destroy(cl->facet_limits);
1270 cl->facet_limits = facet_limits_dup(facet_limits);
1272 yaz_log(YLOG_LOG, "Client %s: CCL query: %s limit: %s", client_get_id(cl), wrbuf_cstr(w_ccl), wrbuf_cstr(w_pqf));
1273 cn = ccl_find_str(ccl_map, wrbuf_cstr(w_ccl), &cerror, &cpos);
1274 ccl_qual_rm(&ccl_map);
1277 client_set_state(cl, Client_Error);
1278 session_log(se, YLOG_WARN, "Client %s: Failed to parse CCL query '%s'",
1281 wrbuf_destroy(w_ccl);
1282 wrbuf_destroy(w_pqf);
1285 wrbuf_destroy(w_ccl);
1287 if (!pqf_strftime || !*pqf_strftime)
1288 ccl_pquery(w_pqf, cn);
1291 time_t cur_time = time(0);
1292 struct tm *tm = localtime(&cur_time);
1294 const char *cp = tmp_str;
1296 /* see man strftime(3) for things .. In particular %% gets converted
1297 to %.. And That's our original query .. */
1298 strftime(tmp_str, sizeof(tmp_str)-1, pqf_strftime, tm);
1302 ccl_pquery(w_pqf, cn);
1304 wrbuf_putc(w_pqf, cp[0]);
1308 /* Compares query and limit with old one. If different we need to research */
1309 if (!cl->pquery || strcmp(cl->pquery, wrbuf_cstr(w_pqf)))
1312 session_log(se, YLOG_LOG, "Client %s: Re-search due query/limit change: %s to %s",
1313 client_get_id(cl), cl->pquery, wrbuf_cstr(w_pqf));
1315 cl->pquery = xstrdup(wrbuf_cstr(w_pqf));
1316 // return value is no longer used.
1318 // Need to (re)search
1321 wrbuf_destroy(w_pqf);
1323 xfree(cl->cqlquery);
1326 odr_out = odr_createmem(ODR_ENCODE);
1327 zquery = p_query_rpn(odr_out, cl->pquery);
1331 session_log(se, YLOG_WARN, "Invalid PQF query for Client %s: %s",
1332 client_get_id(cl), cl->pquery);
1337 session_log(se, YLOG_LOG, "PQF for Client %s: %s",
1338 client_get_id(cl), cl->pquery);
1340 /* Support for PQF on SRU targets. */
1341 if (strcmp(query_syntax, "pqf") != 0 && *sru)
1343 if (!strcmp(sru, "solr"))
1344 cl->cqlquery = make_solrquery(cl, zquery);
1346 cl->cqlquery = make_cqlquery(cl, zquery);
1350 session_log(se, YLOG_LOG, "Client %s native query: %s (%s)",
1351 client_get_id(cl), cl->cqlquery, sru);
1354 odr_destroy(odr_out);
1356 /* TODO FIX Not thread safe */
1359 // Initialize relevance structure with query terms
1360 se->relevance = relevance_create_ccl(se->service->charsets, cn,
1361 se->service->rank_cluster,
1362 se->service->rank_follow,
1363 se->service->rank_lead,
1364 se->service->rank_length);
1370 int client_parse_sort(struct client *cl, struct reclist_sortparms *sp)
1372 struct session *se = client_get_session(cl);
1374 { /* first entry is current sorting ! */
1375 const char *sort_strategy_and_spec =
1376 get_strategy_plus_sort(cl, se->sorted_results->name);
1378 int increasing = se->sorted_results->increasing;
1379 // int type = se->sorted_results->type;
1380 if (sort_strategy_and_spec && strlen(sort_strategy_and_spec) < 40)
1382 char strategy[50], *p;
1383 strcpy(strategy, sort_strategy_and_spec);
1384 p = strchr(strategy, ':');
1387 // Split the string in two
1395 yaz_log(YLOG_LOG, "Client %s: applying sorting %s %s", client_get_id(cl), strategy, p);
1396 if (!cl->sort_strategy || strcmp(cl->sort_strategy, strategy))
1397 cl->same_search = 0;
1398 if (!cl->sort_criteria || strcmp(cl->sort_criteria, p))
1399 cl->same_search = 0;
1400 if (cl->same_search == 0) {
1401 cl->sort_strategy = nmem_strdup(se->nmem, strategy);
1402 cl->sort_criteria = nmem_strdup(se->nmem, p);
1406 yaz_log(YLOG_LOG, "Client %s: Invalid sort strategy and spec found %s", client_get_id(cl), sort_strategy_and_spec);
1407 cl->sort_strategy = 0;
1408 cl->sort_criteria = 0;
1411 yaz_log(YLOG_LOG, "Client %s: No sort strategy and spec found.", client_get_id(cl));
1412 cl->sort_strategy = 0;
1413 cl->sort_criteria = 0;
1417 return !cl->same_search;
1420 void client_set_session(struct client *cl, struct session *se)
1425 int client_is_active(struct client *cl)
1427 if (cl->connection && (cl->state == Client_Connecting ||
1428 cl->state == Client_Working))
1433 int client_is_active_preferred(struct client *cl)
1435 /* only count if this is a preferred target. */
1438 /* TODO No sure this the condition that Seb wants */
1439 if (cl->connection && (cl->state == Client_Connecting ||
1440 cl->state == Client_Working))
1445 Odr_int client_get_hits(struct client *cl)
1450 Odr_int client_get_approximation(struct client *cl)
1452 if (cl->record_offset > 0) {
1453 Odr_int approx = ((10 * cl->hits * (cl->record_offset - cl->filtered)) / cl->record_offset + 5) /10;
1454 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);
1460 int client_get_num_records(struct client *cl)
1462 return cl->record_offset;
1465 int client_get_num_records_filtered(struct client *cl)
1467 return cl->filtered;
1470 void client_set_diagnostic(struct client *cl, int diagnostic,
1471 const char *addinfo)
1473 cl->diagnostic = diagnostic;
1477 cl->addinfo = xstrdup(addinfo);
1480 int client_get_diagnostic(struct client *cl, const char **addinfo)
1483 *addinfo = cl->addinfo;
1484 return cl->diagnostic;
1487 const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf)
1490 struct suggestions *suggestions = cl->suggestions;
1493 //yaz_log(YLOG_DEBUG, "No suggestions found");
1496 if (suggestions->passthrough) {
1497 yaz_log(YLOG_DEBUG, "Passthrough Suggestions: \n%s\n", suggestions->passthrough);
1498 return suggestions->passthrough;
1500 if (suggestions->num == 0) {
1504 for (idx = 0; idx < suggestions->num; idx++) {
1505 wrbuf_printf(wrbuf, "<suggest term=\"%s\"", suggestions->suggest[idx]);
1506 if (suggestions->misspelled[idx] && suggestions->misspelled[idx]) {
1507 wrbuf_puts(wrbuf, suggestions->misspelled[idx]);
1508 wrbuf_puts(wrbuf, "</suggest>\n");
1511 wrbuf_puts(wrbuf, "/>\n");
1514 return wrbuf_cstr(wrbuf);
1518 void client_set_database(struct client *cl, struct session_database *db)
1523 const char *client_get_id(struct client *cl)
1528 int client_get_maxrecs(struct client *cl)
1533 void client_set_preferred(struct client *cl, int v)
1539 struct suggestions* client_suggestions_create(const char* suggestions_string)
1543 struct suggestions *suggestions;
1544 if (suggestions_string == 0 || suggestions_string[0] == 0 )
1546 nmem = nmem_create();
1547 suggestions = nmem_malloc(nmem, sizeof(*suggestions));
1548 yaz_log(YLOG_DEBUG, "client target suggestions: %s.", suggestions_string);
1550 suggestions->nmem = nmem;
1551 suggestions->num = 0;
1552 suggestions->misspelled = 0;
1553 suggestions->suggest = 0;
1554 suggestions->passthrough = nmem_strdup_null(nmem, suggestions_string);
1556 if (suggestions_string)
1557 nmem_strsplit_escape2(suggestions->nmem, "\n", suggestions_string, &suggestions->suggest,
1558 &suggestions->num, 1, '\\', 0);
1559 /* Set up misspelled array */
1560 suggestions->misspelled = (char **) nmem_malloc(nmem, suggestions->num * sizeof(**suggestions->misspelled));
1561 /* replace = with \0 .. for each item */
1562 for (i = 0; i < suggestions->num; i++)
1564 char *cp = strchr(suggestions->suggest[i], '=');
1567 suggestions->misspelled[i] = cp+1;
1573 static void client_suggestions_destroy(struct client *cl)
1575 NMEM nmem = cl->suggestions->nmem;
1576 cl->suggestions = 0;
1580 int client_test_sort_order(struct client *cl, struct reclist_sortparms *sp)
1582 //TODO implement correctly.
1588 * c-file-style: "Stroustrup"
1589 * indent-tabs-mode: nil
1591 * vim: shiftwidth=4 tabstop=8 expandtab