-/* $Id: client.c,v 1.14 2007-07-05 18:40:24 adam Exp $
- Copyright (c) 2006-2007, Index Data.
-
-This file is part of Pazpar2.
+/* This file is part of Pazpar2.
+ Copyright (C) 2006-2011 Index Data
Pazpar2 is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
for more details.
You should have received a copy of the GNU General Public License
-along with Pazpar2; see the file LICENSE. If not, write to the
-Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.
- */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
/** \file client.c
\brief Z39.50 client
*/
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
+#if HAVE_SYS_TIME_H
#include <sys/time.h>
+#endif
+#if HAVE_UNISTD_H
#include <unistd.h>
-#include <sys/socket.h>
-#include <netdb.h>
+#endif
#include <signal.h>
-#include <ctype.h>
#include <assert.h>
#include <yaz/marcdisp.h>
#include <yaz/querytowrbuf.h>
#include <yaz/oid_db.h>
#include <yaz/diagbib1.h>
-
-#if HAVE_CONFIG_H
-#include "cconfig.h"
-#endif
+#include <yaz/snprintf.h>
+#include <yaz/rpn2cql.h>
+#include <yaz/rpn2solr.h>
#define USE_TIMING 0
#if USE_TIMING
#include <yaz/timing.h>
#endif
-#include <netinet/in.h>
-
-#include "pazpar2.h"
-
+#include "ppmutex.h"
+#include "session.h"
+#include "parameters.h"
#include "client.h"
#include "connection.h"
#include "settings.h"
+#include "relevance.h"
+#include "incref.h"
+
+static YAZ_MUTEX g_mutex = 0;
+static int no_clients = 0;
+static int no_clients_total = 0;
+
+static int client_use(int delta)
+{
+ int clients;
+ if (!g_mutex)
+ yaz_mutex_create(&g_mutex);
+ yaz_mutex_enter(g_mutex);
+ no_clients += delta;
+ if (delta > 0)
+ no_clients_total += delta;
+ clients = no_clients;
+ yaz_mutex_leave(g_mutex);
+ yaz_log(YLOG_DEBUG, "%s clients=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), clients);
+ return clients;
+}
+
+int clients_count(void) {
+ return client_use(0);
+}
+
+int clients_count_total(void) {
+ int total = 0;
+ if (!g_mutex)
+ return 0;
+ yaz_mutex_enter(g_mutex);
+ total = no_clients_total;
+ yaz_mutex_leave(g_mutex);
+ return total;
+}
+
/** \brief Represents client state for a connection to one search target */
struct client {
struct connection *connection;
struct session *session;
char *pquery; // Current search
- int hits;
- int records;
- int setno;
- int requestid; // ID of current outstanding request
+ char *cqlquery; // used for SRU targets only
+ Odr_int hits;
+ int record_offset;
+ int maxrecs;
+ int startrecs;
int diagnostic;
+ int preferred;
+ struct suggestions *suggestions;
enum client_state state;
struct show_raw *show_raw;
- struct client *next; // next client in session or next in free list
+ ZOOM_resultset resultset;
+ YAZ_MUTEX mutex;
+ int ref_count;
+ char *id;
+};
+
+struct suggestions {
+ NMEM nmem;
+ int num;
+ char **misspelled;
+ char **suggest;
};
struct show_raw {
int active; // whether this request has been sent to the server
int position;
+ int binary;
char *syntax;
char *esn;
void (*error_handler)(void *data, const char *addinfo);
void (*record_handler)(void *data, const char *buf, size_t sz);
void *data;
+ struct show_raw *next;
};
static const char *client_states[] = {
"Client_Connecting",
- "Client_Connected",
"Client_Idle",
- "Client_Initializing",
- "Client_Searching",
- "Client_Presenting",
+ "Client_Working",
"Client_Error",
"Client_Failed",
- "Client_Disconnected",
- "Client_Stopped"
+ "Client_Disconnected"
};
-static struct client *client_freelist = 0;
-
-static int send_apdu(struct client *c, Z_APDU *a)
-{
- struct session_database *sdb = client_get_database(c);
- const char *apdulog = session_setting_oneval(sdb, PZ_APDULOG);
- if (apdulog && *apdulog && *apdulog != '0')
- {
- ODR p = odr_createmem(ODR_PRINT);
- yaz_log(YLOG_LOG, "send APDU %s", client_get_url(c));
-
- odr_setprint(p, yaz_log_file());
- z_APDU(p, &a, 0, 0);
- odr_setprint(p, stderr);
- odr_destroy(p);
- }
- return connection_send_apdu(client_get_connection(c), a);
-}
-
-
const char *client_get_state_str(struct client *cl)
{
return client_states[cl->state];
void client_set_state(struct client *cl, enum client_state st)
{
+ int was_active = 0;
+ if (client_is_active(cl))
+ was_active = 1;
cl->state = st;
-}
-
-static void client_show_raw_error(struct client *cl, const char *addinfo);
-
-// Close connection and set state to error
-void client_fatal(struct client *cl)
-{
- client_show_raw_error(cl, "client connection failure");
- yaz_log(YLOG_WARN, "Fatal error from %s", client_get_url(cl));
- connection_destroy(cl->connection);
- cl->state = Client_Error;
-}
-
-
-static int diag_to_wrbuf(Z_DiagRec **pp, int num, WRBUF w)
-{
- int code = 0;
- int i;
- for (i = 0; i<num; i++)
+ /* If client is going from being active to inactive and all clients
+ are now idle we fire a watch for the session . The assumption is
+ that session is not mutex locked if client is already active */
+ if (was_active && !client_is_active(cl) && cl->session)
{
- Z_DiagRec *p = pp[i];
- if (i)
- wrbuf_puts(w, "; ");
- if (p->which != Z_DiagRec_defaultFormat)
- {
- wrbuf_puts(w, "? Not in default format");
- }
- else
- {
- Z_DefaultDiagFormat *r = p->u.defaultFormat;
-
- if (!r->diagnosticSetId)
- wrbuf_puts(w, "? Missing diagset");
- else
- {
- oid_class oclass;
- char diag_name_buf[OID_STR_MAX];
- const char *diag_name = 0;
- diag_name = yaz_oid_to_string_buf
- (r->diagnosticSetId, &oclass, diag_name_buf);
- wrbuf_puts(w, diag_name);
- }
- if (!code)
- code = *r->condition;
- wrbuf_printf(w, " %d %s", *r->condition,
- diagbib1_str(*r->condition));
- switch (r->which)
- {
- case Z_DefaultDiagFormat_v2Addinfo:
- wrbuf_printf(w, " -- v2 addinfo '%s'", r->u.v2Addinfo);
- break;
- case Z_DefaultDiagFormat_v3Addinfo:
- wrbuf_printf(w, " -- v3 addinfo '%s'", r->u.v3Addinfo);
- break;
- }
+
+ int no_active = session_active_clients(cl->session);
+ yaz_log(YLOG_DEBUG, "%s: releasing watches on zero active: %d",
+ client_get_id(cl), no_active);
+ if (no_active == 0) {
+ session_alert_watch(cl->session, SESSION_WATCH_SHOW);
+ session_alert_watch(cl->session, SESSION_WATCH_SHOW_PREF);
}
}
- return code;
}
-
+static void client_show_raw_error(struct client *cl, const char *addinfo);
struct connection *client_get_connection(struct client *cl)
{
return cl->pquery;
}
-void client_set_requestid(struct client *cl, int id)
+static void client_send_raw_present(struct client *cl);
+static int nativesyntax_to_type(struct session_database *sdb, char *type,
+ ZOOM_record rec);
+
+static void client_show_immediate(
+ ZOOM_resultset resultset, struct session_database *sdb, int position,
+ void *data,
+ void (*error_handler)(void *data, const char *addinfo),
+ void (*record_handler)(void *data, const char *buf, size_t sz),
+ int binary)
{
- cl->requestid = id;
+ ZOOM_record rec = 0;
+ char type[80];
+ const char *buf;
+ int len;
+
+ if (!resultset)
+ {
+ error_handler(data, "no resultset");
+ return;
+ }
+ rec = ZOOM_resultset_record(resultset, position-1);
+ if (!rec)
+ {
+ error_handler(data, "no record");
+ return;
+ }
+ if (binary)
+ strcpy(type, "raw");
+ else
+ nativesyntax_to_type(sdb, type, rec);
+ buf = ZOOM_record_get(rec, type, &len);
+ if (!buf)
+ {
+ error_handler(data, "no record");
+ return;
+ }
+ record_handler(data, buf, len);
}
+
int client_show_raw_begin(struct client *cl, int position,
const char *syntax, const char *esn,
void *data,
void (*error_handler)(void *data, const char *addinfo),
void (*record_handler)(void *data, const char *buf,
- size_t sz))
+ size_t sz),
+ int binary)
{
- if (cl->show_raw)
- return -1;
- cl->show_raw = xmalloc(sizeof(*cl->show_raw));
- cl->show_raw->position = position;
- cl->show_raw->active = 0;
- cl->show_raw->data = data;
- cl->show_raw->error_handler = error_handler;
- cl->show_raw->record_handler = record_handler;
- if (syntax)
- cl->show_raw->syntax = xstrdup(syntax);
- else
- cl->show_raw->syntax = 0;
- if (esn)
- cl->show_raw->esn = xstrdup(esn);
+ if (syntax == 0 && esn == 0)
+ client_show_immediate(cl->resultset, client_get_database(cl),
+ position, data,
+ error_handler, record_handler,
+ binary);
else
- cl->show_raw->esn = 0;
+ {
+ struct show_raw *rr, **rrp;
+
+ if (!cl->connection)
+ return -1;
- if (cl->state == Client_Failed || cl->state == Client_Disconnected)
- {
- client_show_raw_error(cl, "not connected");
- }
- else
- {
- client_continue(cl);
+ rr = xmalloc(sizeof(*rr));
+ rr->position = position;
+ rr->active = 0;
+ rr->data = data;
+ rr->error_handler = error_handler;
+ rr->record_handler = record_handler;
+ rr->binary = binary;
+ if (syntax)
+ rr->syntax = xstrdup(syntax);
+ else
+ rr->syntax = 0;
+ if (esn)
+ rr->esn = xstrdup(esn);
+ else
+ rr->esn = 0;
+ rr->next = 0;
+
+ for (rrp = &cl->show_raw; *rrp; rrp = &(*rrp)->next)
+ ;
+ *rrp = rr;
+
+ if (cl->state == Client_Failed)
+ {
+ client_show_raw_error(cl, "client failed");
+ }
+ else if (cl->state == Client_Disconnected)
+ {
+ client_show_raw_error(cl, "client disconnected");
+ }
+ else
+ {
+ client_send_raw_present(cl);
+ }
}
return 0;
}
-void client_show_raw_reset(struct client *cl)
+static void client_show_raw_delete(struct show_raw *r)
{
- xfree(cl->show_raw);
- cl->show_raw = 0;
+ xfree(r->syntax);
+ xfree(r->esn);
+ xfree(r);
}
-static void client_show_raw_error(struct client *cl, const char *addinfo)
+void client_show_raw_remove(struct client *cl, void *data)
{
- if (cl->show_raw)
+ struct show_raw *rr = data;
+ struct show_raw **rrp = &cl->show_raw;
+ while (*rrp != rr)
+ rrp = &(*rrp)->next;
+ if (*rrp)
{
- cl->show_raw->error_handler(cl->show_raw->data, addinfo);
- client_show_raw_reset(cl);
+ *rrp = rr->next;
+ client_show_raw_delete(rr);
}
}
-static void client_show_raw_cancel(struct client *cl)
+void client_show_raw_dequeue(struct client *cl)
{
- if (cl->show_raw)
- {
- cl->show_raw->error_handler(cl->show_raw->data, "cancel");
- client_show_raw_reset(cl);
- }
-}
+ struct show_raw *rr = cl->show_raw;
-static void client_present_syntax(Z_APDU *a, const char *syntax)
-{
- // empty string for syntax OMITS preferredRecordSyntax (OPTIONAL)
- if (syntax && *syntax)
- a->u.presentRequest->preferredRecordSyntax =
- yaz_string_to_oid_odr(yaz_oid_std(),
- CLASS_RECSYN, syntax,
- global_parameters.odr_out);
+ cl->show_raw = rr->next;
+ client_show_raw_delete(rr);
}
-static void client_present_elements(Z_APDU *a, const char *elements)
+static void client_show_raw_error(struct client *cl, const char *addinfo)
{
- if (elements && *elements) // element set is optional
+ while (cl->show_raw)
{
- Z_ElementSetNames *elementSetNames =
- odr_malloc(global_parameters.odr_out, sizeof(*elementSetNames));
- Z_RecordComposition *compo =
- odr_malloc(global_parameters.odr_out, sizeof(*compo));
- a->u.presentRequest->recordComposition = compo;
-
- compo->which = Z_RecordComp_simple;
- compo->u.simple = elementSetNames;
-
- elementSetNames->which = Z_ElementSetNames_generic;
- elementSetNames->u.generic =
- odr_strdup(global_parameters.odr_out, elements);
+ cl->show_raw->error_handler(cl->show_raw->data, addinfo);
+ client_show_raw_dequeue(cl);
}
}
-void client_send_raw_present(struct client *cl)
+static void client_send_raw_present(struct client *cl)
{
struct session_database *sdb = client_get_database(cl);
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_presentRequest);
- int toget = 1;
- int start = cl->show_raw->position;
+ struct connection *co = client_get_connection(cl);
+ ZOOM_resultset set = cl->resultset;
+
+ int offset = cl->show_raw->position;
const char *syntax = 0;
const char *elements = 0;
assert(cl->show_raw);
+ assert(set);
yaz_log(YLOG_DEBUG, "%s: trying to present %d record(s) from %d",
- client_get_url(cl), toget, start);
-
- a->u.presentRequest->resultSetStartPoint = &start;
- a->u.presentRequest->numberOfRecordsRequested = &toget;
+ client_get_id(cl), 1, offset);
if (cl->show_raw->syntax)
syntax = cl->show_raw->syntax;
else
syntax = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
+ ZOOM_resultset_option_set(set, "preferredRecordSyntax", syntax);
- client_present_syntax(a, syntax);
if (cl->show_raw->esn)
elements = cl->show_raw->esn;
else
elements = session_setting_oneval(sdb, PZ_ELEMENTS);
- client_present_elements(a, elements);
+ if (elements && *elements)
+ ZOOM_resultset_option_set(set, "elementSetName", elements);
- if (send_apdu(cl, a) >= 0)
- {
- cl->show_raw->active = 1;
- cl->state = Client_Presenting;
- }
- else
- {
- client_show_raw_error(cl, "send_apdu failed");
- cl->state = Client_Error;
- }
- odr_reset(global_parameters.odr_out);
-}
+ ZOOM_resultset_records(set, 0, offset-1, 1);
+ cl->show_raw->active = 1;
-void client_send_present(struct client *cl)
-{
- struct session_database *sdb = client_get_database(cl);
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_presentRequest);
- int toget;
- int start = cl->records + 1;
- const char *syntax = 0;
- const char *elements = 0;
-
- toget = global_parameters.chunk;
- if (toget > global_parameters.toget - cl->records)
- toget = global_parameters.toget - cl->records;
- if (toget > cl->hits - cl->records)
- toget = cl->hits - cl->records;
-
- yaz_log(YLOG_DEBUG, "Trying to present %d record(s) from %d",
- toget, start);
-
- a->u.presentRequest->resultSetStartPoint = &start;
- a->u.presentRequest->numberOfRecordsRequested = &toget;
-
- syntax = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
- client_present_syntax(a, syntax);
-
- elements = session_setting_oneval(sdb, PZ_ELEMENTS);
- client_present_elements(a, elements);
-
- if (send_apdu(cl, a) >= 0)
- cl->state = Client_Presenting;
- else
- cl->state = Client_Error;
- odr_reset(global_parameters.odr_out);
+ connection_continue(co);
}
-
-void client_send_search(struct client *cl)
+static int nativesyntax_to_type(struct session_database *sdb, char *type,
+ ZOOM_record rec)
{
- struct session *se = client_get_session(cl);
- struct session_database *sdb = client_get_database(cl);
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_searchRequest);
- int ndb;
- char **databaselist;
- Z_Query *zquery;
- int ssub = 0, lslb = 100000, mspn = 10;
- char *piggyback = 0;
- char *queryenc = 0;
- yaz_iconv_t iconv = 0;
+ const char *s = session_setting_oneval(sdb, PZ_NATIVESYNTAX);
- yaz_log(YLOG_DEBUG, "Sending search to %s", sdb->database->url);
-
-
- // constructing RPN query
- a->u.searchRequest->query = zquery = odr_malloc(global_parameters.odr_out,
- sizeof(Z_Query));
- zquery->which = Z_Query_type_1;
- zquery->u.type_1 = p_query_rpn(global_parameters.odr_out,
- client_get_pquery(cl));
-
- // converting to target encoding
- if ((queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING))){
- iconv = yaz_iconv_open(queryenc, "UTF-8");
- if (iconv){
- yaz_query_charset_convert_rpnquery(zquery->u.type_1,
- global_parameters.odr_out,
- iconv);
- yaz_iconv_close(iconv);
- } else
- yaz_log(YLOG_WARN, "Query encoding failed %s %s",
- client_get_database(cl)->database->url, queryenc);
- }
-
- for (ndb = 0; sdb->database->databases[ndb]; ndb++)
- ;
- databaselist = odr_malloc(global_parameters.odr_out, sizeof(char*) * ndb);
- for (ndb = 0; sdb->database->databases[ndb]; ndb++)
- databaselist[ndb] = sdb->database->databases[ndb];
-
- if (!(piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK))
- || *piggyback == '1')
- {
- const char *elements = session_setting_oneval(sdb, PZ_ELEMENTS);
- const char *recsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
- if (recsyn && *recsyn)
+ if (s && *s)
+ {
+ if (!strncmp(s, "iso2709", 7))
{
- a->u.searchRequest->preferredRecordSyntax =
- yaz_string_to_oid_odr(yaz_oid_std(),
- CLASS_RECSYN, recsyn,
- global_parameters.odr_out);
+ const char *cp = strchr(s, ';');
+ yaz_snprintf(type, 80, "xml; charset=%s", cp ? cp+1 : "marc-8s");
}
- if (elements && *elements)
+ else if (!strncmp(s, "xml", 3))
{
- Z_ElementSetNames *esn =
- odr_malloc(global_parameters.odr_out, sizeof(*esn));
- esn->which = Z_ElementSetNames_generic;
- esn->u.generic = odr_strdup(global_parameters.odr_out, elements);
-
- a->u.searchRequest->smallSetElementSetNames = esn;
- a->u.searchRequest->mediumSetElementSetNames = esn;
+ strcpy(type, "xml");
}
- a->u.searchRequest->smallSetUpperBound = &ssub;
- a->u.searchRequest->largeSetLowerBound = &lslb;
- a->u.searchRequest->mediumSetPresentNumber = &mspn;
- }
- a->u.searchRequest->databaseNames = databaselist;
- a->u.searchRequest->num_databaseNames = ndb;
-
-
- { //scope for sending and logging queries
- WRBUF wbquery = wrbuf_alloc();
- yaz_query_to_wrbuf(wbquery, a->u.searchRequest->query);
-
-
- if (send_apdu(cl, a) >= 0)
+ else if (!strncmp(s, "txml", 4))
{
- client_set_state(cl, Client_Searching);
- client_set_requestid(cl, se->requestid);
- yaz_log(YLOG_LOG, "SearchRequest %s %s %s",
- client_get_database(cl)->database->url,
- queryenc ? queryenc : "UTF-8",
- wrbuf_cstr(wbquery));
+ const char *cp = strchr(s, ';');
+ yaz_snprintf(type, 80, "txml; charset=%s", cp ? cp+1 : "marc-8s");
}
- else {
- client_set_state(cl, Client_Error);
- yaz_log(YLOG_WARN, "Failed SearchRequest %s %s %s",
- client_get_database(cl)->database->url,
- queryenc ? queryenc : "UTF-8",
- wrbuf_cstr(wbquery));
+ else
+ return -1;
+ return 0;
+ }
+ else /* attempt to deduce structure */
+ {
+ const char *syntax = ZOOM_record_get(rec, "syntax", NULL);
+ if (syntax)
+ {
+ if (!strcmp(syntax, "XML"))
+ {
+ strcpy(type, "xml");
+ return 0;
+ }
+ else if (!strcmp(syntax, "USmarc") || !strcmp(syntax, "MARC21"))
+ {
+ strcpy(type, "xml; charset=marc8-s");
+ return 0;
+ }
+ else return -1;
}
-
- wrbuf_destroy(wbquery);
- }
-
- odr_reset(global_parameters.odr_out);
+ else return -1;
+ }
}
-void client_init_response(struct client *cl, Z_APDU *a)
+/**
+ * TODO Consider thread safety!!!
+ *
+ */
+void client_report_facets(struct client *cl, ZOOM_resultset rs)
{
- Z_InitResponse *r = a->u.initResponse;
-
- yaz_log(YLOG_DEBUG, "Init response %s", cl->database->database->url);
+ struct session_database *sdb = client_get_database(cl);
+ ZOOM_facet_field *facets = ZOOM_resultset_facets(rs);
- if (*r->result)
+ if (sdb && facets)
{
- cl->state = Client_Idle;
+ struct session *se = client_get_session(cl);
+ int facet_num = ZOOM_resultset_facets_size(rs);
+ struct setting *s;
+
+ for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
+ {
+ const char *p = strchr(s->name + 3, ':');
+ if (p && p[1] && s->value && s->value[0])
+ {
+ int facet_idx;
+ p++; /* p now holds logical facet name */
+ for (facet_idx = 0; facet_idx < facet_num; facet_idx++)
+ {
+ const char *native_name =
+ ZOOM_facet_field_name(facets[facet_idx]);
+ if (native_name && !strcmp(s->value, native_name))
+ {
+ size_t term_idx;
+ size_t term_num =
+ ZOOM_facet_field_term_count(facets[facet_idx]);
+ for (term_idx = 0; term_idx < term_num; term_idx++ )
+ {
+ int freq;
+ const char *term =
+ ZOOM_facet_field_get_term(facets[facet_idx],
+ term_idx, &freq);
+ if (term)
+ add_facet(se, p, term, freq);
+ }
+ break;
+ }
+ }
+ }
+ }
}
- else
- cl->state = Client_Failed; // FIXME need to do something to the connection
}
-
-static void ingest_raw_records(struct client *cl, Z_Records *r)
+static void ingest_raw_record(struct client *cl, ZOOM_record rec)
{
- Z_NamePlusRecordList *rlist;
- Z_NamePlusRecord *npr;
- xmlDoc *doc;
- xmlChar *buf_out;
- int len_out;
- if (r->which != Z_Records_DBOSD)
- {
- client_show_raw_error(cl, "non-surrogate diagnostics");
- return;
- }
+ const char *buf;
+ int len;
+ char type[80];
- rlist = r->u.databaseOrSurDiagnostics;
- if (rlist->num_records != 1 || !rlist->records || !rlist->records[0])
- {
- client_show_raw_error(cl, "no records");
- return;
- }
- npr = rlist->records[0];
- if (npr->which != Z_NamePlusRecord_databaseRecord)
- {
- client_show_raw_error(cl, "surrogate diagnostic");
- return;
- }
-
- doc = record_to_xml(client_get_database(cl), npr->u.databaseRecord);
- if (!doc)
+ if (cl->show_raw->binary)
+ strcpy(type, "raw");
+ else
{
- client_show_raw_error(cl, "unable to convert record to xml");
- return;
+ struct session_database *sdb = client_get_database(cl);
+ nativesyntax_to_type(sdb, type, rec);
}
- xmlDocDumpMemory(doc, &buf_out, &len_out);
- xmlFreeDoc(doc);
-
- cl->show_raw->record_handler(cl->show_raw->data,
- (const char *) buf_out, len_out);
-
- xmlFree(buf_out);
- xfree(cl->show_raw);
- cl->show_raw = 0;
+ buf = ZOOM_record_get(rec, type, &len);
+ cl->show_raw->record_handler(cl->show_raw->data, buf, len);
+ client_show_raw_dequeue(cl);
}
-static void ingest_records(struct client *cl, Z_Records *r)
+void client_check_preferred_watch(struct client *cl)
{
-#if USE_TIMING
- yaz_timing_t t = yaz_timing_create();
-#endif
- struct record *rec;
- struct session *s = client_get_session(cl);
- Z_NamePlusRecordList *rlist;
- int i;
-
- if (r->which != Z_Records_DBOSD)
- return;
- rlist = r->u.databaseOrSurDiagnostics;
- for (i = 0; i < rlist->num_records; i++)
+ struct session *se = cl->session;
+ yaz_log(YLOG_DEBUG, "client_check_preferred_watch: %s ", client_get_id(cl));
+ if (se)
{
- Z_NamePlusRecord *npr = rlist->records[i];
-
- cl->records++;
- if (npr->which != Z_NamePlusRecord_databaseRecord)
- {
- yaz_log(YLOG_WARN,
- "Unexpected record type, probably diagnostic %s",
- cl->database->database->url);
- continue;
+ client_unlock(cl);
+ /* TODO possible threading issue. Session can have been destroyed */
+ if (session_is_preferred_clients_ready(se)) {
+ session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
}
+ else
+ yaz_log(YLOG_DEBUG, "client_check_preferred_watch: Still locked on preferred targets.");
- rec = ingest_record(cl, npr->u.databaseRecord, cl->records);
- if (!rec)
- continue;
+ client_lock(cl);
}
- if (rlist->num_records)
- session_alert_watch(s, SESSION_WATCH_RECORDS);
+ else
+ yaz_log(YLOG_WARN, "client_check_preferred_watch: %s. No session!", client_get_id(cl));
-#if USE_TIMING
- yaz_timing_stop(t);
- yaz_log(YLOG_LOG, "ingest_records %6.5f %3.2f %3.2f",
- yaz_timing_get_real(t), yaz_timing_get_user(t),
- yaz_timing_get_sys(t));
- yaz_timing_destroy(&t);
-#endif
}
+struct suggestions* client_suggestions_create(const char* suggestions_string);
+static void client_suggestions_destroy(struct client *cl);
-void client_search_response(struct client *cl, Z_APDU *a)
+void client_search_response(struct client *cl)
{
- struct session *se = cl->session;
- Z_SearchResponse *r = a->u.searchResponse;
-
- yaz_log(YLOG_DEBUG, "Search response %s (status=%d)",
- cl->database->database->url, *r->searchStatus);
+ struct connection *co = cl->connection;
+ ZOOM_connection link = connection_get_link(co);
+ ZOOM_resultset resultset = cl->resultset;
- if (*r->searchStatus)
+ const char *error, *addinfo = 0;
+
+ if (ZOOM_connection_error(link, &error, &addinfo))
{
- cl->hits = *r->resultCount;
- se->total_hits += cl->hits;
- if (r->presentStatus && !*r->presentStatus && r->records)
- {
- yaz_log(YLOG_DEBUG, "Records in search response %s",
- cl->database->database->url);
- ingest_records(cl, r->records);
- }
- cl->state = Client_Idle;
+ cl->hits = 0;
+ client_set_state(cl, Client_Error);
+ yaz_log(YLOG_WARN, "Search error %s (%s): %s",
+ error, addinfo, client_get_id(cl));
}
else
- { /*"FAILED"*/
- Z_Records *recs = r->records;
- cl->hits = 0;
- cl->state = Client_Error;
- if (recs && recs->which == Z_Records_NSD)
- {
- WRBUF w = wrbuf_alloc();
-
- Z_DiagRec dr, *dr_p = &dr;
- dr.which = Z_DiagRec_defaultFormat;
- dr.u.defaultFormat = recs->u.nonSurrogateDiagnostic;
-
- wrbuf_printf(w, "Search response NSD %s: ",
- cl->database->database->url);
-
- cl->diagnostic = diag_to_wrbuf(&dr_p, 1, w);
-
- yaz_log(YLOG_WARN, "%s", wrbuf_cstr(w));
-
- cl->state = Client_Error;
- wrbuf_destroy(w);
- }
- else if (recs && recs->which == Z_Records_multipleNSD)
- {
- WRBUF w = wrbuf_alloc();
-
- wrbuf_printf(w, "Search response multipleNSD %s: ",
- cl->database->database->url);
- cl->diagnostic =
- diag_to_wrbuf(recs->u.multipleNonSurDiagnostics->diagRecs,
- recs->u.multipleNonSurDiagnostics->num_diagRecs,
- w);
- yaz_log(YLOG_WARN, "%s", wrbuf_cstr(w));
- cl->state = Client_Error;
- wrbuf_destroy(w);
- }
+ {
+ yaz_log(YLOG_DEBUG, "client_search_response: hits "
+ ODR_INT_PRINTF, cl->hits);
+ client_report_facets(cl, resultset);
+ cl->record_offset = cl->startrecs;
+ cl->hits = ZOOM_resultset_size(resultset);
+ if (cl->suggestions)
+ client_suggestions_destroy(cl);
+ cl->suggestions = client_suggestions_create(ZOOM_resultset_option_get(resultset, "suggestions"));
}
}
-void client_present_response(struct client *cl, Z_APDU *a)
+void client_got_records(struct client *cl)
{
- Z_PresentResponse *r = a->u.presentResponse;
- Z_Records *recs = r->records;
-
- if (recs && recs->which == Z_Records_NSD)
+ struct session *se = cl->session;
+ if (se)
{
- WRBUF w = wrbuf_alloc();
-
- Z_DiagRec dr, *dr_p = &dr;
- dr.which = Z_DiagRec_defaultFormat;
- dr.u.defaultFormat = recs->u.nonSurrogateDiagnostic;
-
- wrbuf_printf(w, "Present response NSD %s: ",
- cl->database->database->url);
-
- cl->diagnostic = diag_to_wrbuf(&dr_p, 1, w);
-
- yaz_log(YLOG_WARN, "%s", wrbuf_cstr(w));
-
- cl->state = Client_Error;
- wrbuf_destroy(w);
+ client_unlock(cl);
+ session_alert_watch(se, SESSION_WATCH_SHOW);
+ session_alert_watch(se, SESSION_WATCH_RECORD);
+ client_lock(cl);
+ }
+}
- client_show_raw_error(cl, "non surrogate diagnostics");
+void client_record_response(struct client *cl)
+{
+ struct connection *co = cl->connection;
+ ZOOM_connection link = connection_get_link(co);
+ ZOOM_resultset resultset = cl->resultset;
+ const char *error, *addinfo;
+
+ if (ZOOM_connection_error(link, &error, &addinfo))
+ {
+ client_set_state(cl, Client_Error);
+ yaz_log(YLOG_WARN, "Search error %s (%s): %s",
+ error, addinfo, client_get_id(cl));
}
- else if (recs && recs->which == Z_Records_multipleNSD)
+ else
{
- WRBUF w = wrbuf_alloc();
+ ZOOM_record rec = 0;
+ const char *msg, *addinfo;
- wrbuf_printf(w, "Present response multipleNSD %s: ",
- cl->database->database->url);
- cl->diagnostic =
- diag_to_wrbuf(recs->u.multipleNonSurDiagnostics->diagRecs,
- recs->u.multipleNonSurDiagnostics->num_diagRecs,
- w);
- yaz_log(YLOG_WARN, "%s", wrbuf_cstr(w));
- cl->state = Client_Error;
- wrbuf_destroy(w);
- }
- else if (recs && !*r->presentStatus && cl->state != Client_Error)
- {
- yaz_log(YLOG_DEBUG, "Good Present response %s",
- cl->database->database->url);
-
- // we can mix show raw and normal show ..
if (cl->show_raw && cl->show_raw->active)
{
- cl->show_raw->active = 0; // no longer active
- ingest_raw_records(cl, recs);
+ if ((rec = ZOOM_resultset_record(resultset,
+ cl->show_raw->position-1)))
+ {
+ cl->show_raw->active = 0;
+ ingest_raw_record(cl, rec);
+ }
+ else
+ {
+ yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d",
+ cl->show_raw->position-1);
+ }
}
else
- ingest_records(cl, recs);
- cl->state = Client_Idle;
- }
- else if (*r->presentStatus)
- {
- yaz_log(YLOG_WARN, "Bad Present response %s",
- cl->database->database->url);
- cl->state = Client_Error;
- client_show_raw_error(cl, "bad present response");
+ {
+ int offset = cl->record_offset;
+ if ((rec = ZOOM_resultset_record(resultset, offset)))
+ {
+ cl->record_offset++;
+ if (cl->session == 0)
+ ;
+ else if (ZOOM_record_error(rec, &msg, &addinfo, 0))
+ {
+ yaz_log(YLOG_WARN, "Record error %s (%s): %s (rec #%d)",
+ msg, addinfo, client_get_id(cl),
+ cl->record_offset);
+ }
+ else
+ {
+ struct session_database *sdb = client_get_database(cl);
+ NMEM nmem = nmem_create();
+ const char *xmlrec;
+ char type[80];
+
+ if (nativesyntax_to_type(sdb, type, rec))
+ yaz_log(YLOG_WARN, "Failed to determine record type");
+ xmlrec = ZOOM_record_get(rec, type, NULL);
+ if (!xmlrec)
+ yaz_log(YLOG_WARN, "ZOOM_record_get failed from %s",
+ client_get_id(cl));
+ else
+ {
+ /* OK = 0, -1 = failure, -2 = Filtered */
+ if (ingest_record(cl, xmlrec, cl->record_offset, nmem) == -1)
+ yaz_log(YLOG_WARN, "Failed to ingest from %s", client_get_id(cl));
+ }
+ nmem_destroy(nmem);
+ }
+ }
+ else
+ {
+ yaz_log(YLOG_WARN, "Expected record, but got NULL, offset=%d",
+ offset);
+ }
+ }
}
}
-void client_close_response(struct client *cl, Z_APDU *a)
+static void client_set_facets_request(struct client *cl, ZOOM_connection link)
{
- struct connection *co = cl->connection;
- /* Z_Close *r = a->u.close; */
-
- yaz_log(YLOG_WARN, "Close response %s", cl->database->database->url);
-
- cl->state = Client_Failed;
- connection_destroy(co);
-}
+ struct session_database *sdb = client_get_database(cl);
-int client_is_our_response(struct client *cl)
-{
- struct session *se = client_get_session(cl);
+ WRBUF w = wrbuf_alloc();
+
+ struct setting *s;
- if (cl && (cl->requestid == se->requestid ||
- cl->state == Client_Initializing))
- return 1;
- return 0;
+ for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
+ {
+ const char *p = strchr(s->name + 3, ':');
+ if (!p)
+ {
+ yaz_log(YLOG_WARN, "Malformed facetmap name: %s", s->name);
+ }
+ else if (s->value && s->value[0])
+ {
+ wrbuf_puts(w, "@attr 1=");
+ yaz_encode_pqf_term(w, s->value, strlen(s->value));
+ if (s->next)
+ wrbuf_puts(w, ",");
+ }
+ }
+ yaz_log(YLOG_LOG, "using facets str: %s", wrbuf_cstr(w));
+ ZOOM_connection_option_set(link, "facets",
+ wrbuf_len(w) ? wrbuf_cstr(w) : 0);
+ wrbuf_destroy(w);
}
-// Set authentication token in init if one is set for the client
-// TODO: Extend this to handle other schemes than open (should be simple)
-static void init_authentication(struct client *cl, Z_InitRequest *req)
+int client_has_facet(struct client *cl, const char *name)
{
struct session_database *sdb = client_get_database(cl);
- char *auth = session_setting_oneval(sdb, PZ_AUTHENTICATION);
+ struct setting *s;
- if (*auth)
+ for (s = sdb->settings[PZ_FACETMAP]; s; s = s->next)
{
- struct connection *co = client_get_connection(cl);
- struct session *se = client_get_session(cl);
- Z_IdAuthentication *idAuth = odr_malloc(global_parameters.odr_out,
- sizeof(*idAuth));
- idAuth->which = Z_IdAuthentication_open;
- idAuth->u.open = auth;
- req->idAuthentication = idAuth;
- connection_set_authentication(co, nmem_strdup(se->session_nmem, auth));
+ const char *p = strchr(s->name + 3, ':');
+ if (p && !strcmp(name, p + 1))
+ return 1;
}
+ return 0;
}
-static void init_zproxy(struct client *cl, Z_InitRequest *req)
+void client_start_search(struct client *cl, const char *sort_strategy_and_spec,
+ int increasing)
{
struct session_database *sdb = client_get_database(cl);
- char *ztarget = sdb->database->url;
- //char *ztarget = sdb->url;
- char *zproxy = session_setting_oneval(sdb, PZ_ZPROXY);
-
- if (*zproxy)
- yaz_oi_set_string_oid(&req->otherInfo,
- global_parameters.odr_out,
- yaz_oid_userinfo_proxy,
- 1, ztarget);
-}
+ struct connection *co = client_get_connection(cl);
+ ZOOM_connection link = connection_get_link(co);
+ ZOOM_resultset rs;
+ const char *opt_piggyback = session_setting_oneval(sdb, PZ_PIGGYBACK);
+ const char *opt_queryenc = session_setting_oneval(sdb, PZ_QUERYENCODING);
+ const char *opt_elements = session_setting_oneval(sdb, PZ_ELEMENTS);
+ const char *opt_requestsyn = session_setting_oneval(sdb, PZ_REQUESTSYNTAX);
+ const char *opt_maxrecs = session_setting_oneval(sdb, PZ_MAXRECS);
+ const char *opt_sru = session_setting_oneval(sdb, PZ_SRU);
+ const char *opt_sort = session_setting_oneval(sdb, PZ_SORT);
+ const char *opt_preferred = session_setting_oneval(sdb, PZ_PREFERRED);
+ const char *extra_args = session_setting_oneval(sdb, PZ_EXTRA_ARGS);
+ char maxrecs_str[24], startrecs_str[24];
+ ZOOM_query q;
+
+ assert(link);
+
+ cl->record_offset = 0;
+ cl->diagnostic = 0;
+
+ if (extra_args && *extra_args)
+ ZOOM_connection_option_set(link, "extraArgs", extra_args);
+
+ if (opt_preferred) {
+ cl->preferred = atoi(opt_preferred);
+ if (cl->preferred)
+ yaz_log(YLOG_LOG, "Target %s has preferred status: %d",
+ client_get_id(cl), cl->preferred);
+ }
+ client_set_state(cl, Client_Working);
+ if (*opt_piggyback)
+ ZOOM_connection_option_set(link, "piggyback", opt_piggyback);
+ else
+ ZOOM_connection_option_set(link, "piggyback", "1");
+ if (*opt_queryenc)
+ ZOOM_connection_option_set(link, "rpnCharset", opt_queryenc);
+ if (*opt_sru && *opt_elements)
+ ZOOM_connection_option_set(link, "schema", opt_elements);
+ else if (*opt_elements)
+ ZOOM_connection_option_set(link, "elementSetName", opt_elements);
+ if (*opt_requestsyn)
+ ZOOM_connection_option_set(link, "preferredRecordSyntax", opt_requestsyn);
+
+ if (opt_maxrecs && *opt_maxrecs)
+ {
+ cl->maxrecs = atoi(opt_maxrecs);
+ }
-static void client_init_request(struct client *cl)
-{
- Z_APDU *a = zget_APDU(global_parameters.odr_out, Z_APDU_initRequest);
+ /* convert back to string representation used in ZOOM API */
+ sprintf(maxrecs_str, "%d", cl->maxrecs);
+ ZOOM_connection_option_set(link, "count", maxrecs_str);
- a->u.initRequest->implementationId = global_parameters.implementationId;
- a->u.initRequest->implementationName = global_parameters.implementationName;
- a->u.initRequest->implementationVersion =
- global_parameters.implementationVersion;
- ODR_MASK_SET(a->u.initRequest->options, Z_Options_search);
- ODR_MASK_SET(a->u.initRequest->options, Z_Options_present);
- ODR_MASK_SET(a->u.initRequest->options, Z_Options_namedResultSets);
+ if (cl->maxrecs > 20)
+ ZOOM_connection_option_set(link, "presentChunk", "20");
+ else
+ ZOOM_connection_option_set(link, "presentChunk", maxrecs_str);
- ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_1);
- ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_2);
- ODR_MASK_SET(a->u.initRequest->protocolVersion, Z_ProtocolVersion_3);
+ sprintf(startrecs_str, "%d", cl->startrecs);
+ ZOOM_connection_option_set(link, "start", startrecs_str);
- init_authentication(cl, a->u.initRequest);
- init_zproxy(cl, a->u.initRequest);
+ /* TODO Verify does it break something for CQL targets(non-SOLR) ? */
+ /* facets definition is in PQF */
+ client_set_facets_request(cl, link);
- if (send_apdu(cl, a) >= 0)
- client_set_state(cl, Client_Initializing);
+ q = ZOOM_query_create();
+ if (cl->cqlquery)
+ {
+ yaz_log(YLOG_LOG, "Search %s CQL: %s", client_get_id(cl),
+ cl->cqlquery);
+ ZOOM_query_cql(q, cl->cqlquery);
+ if (*opt_sort)
+ ZOOM_query_sortby(q, opt_sort);
+ }
else
- client_set_state(cl, Client_Error);
- odr_reset(global_parameters.odr_out);
-}
-
-void client_continue(struct client *cl)
-{
- if (cl->state == Client_Connected) {
- client_init_request(cl);
+ {
+ yaz_log(YLOG_LOG, "Search %s PQF: %s", client_get_id(cl), cl->pquery);
+
+ ZOOM_query_prefix(q, cl->pquery);
}
- if (cl->state == Client_Idle)
+ if (sort_strategy_and_spec &&
+ strlen(sort_strategy_and_spec) < 40 /* spec below */)
{
- struct session *se = client_get_session(cl);
- if (cl->requestid != se->requestid && cl->pquery) {
- // we'll have to abort this because result set is to be deleted
- client_show_raw_cancel(cl);
- client_send_search(cl);
- }
- else if (cl->show_raw)
+ char spec[50], *p;
+ strcpy(spec, sort_strategy_and_spec);
+ p = strchr(spec, ':');
+ if (p)
{
- client_send_raw_present(cl);
- }
- else if (cl->hits > 0 && cl->records < global_parameters.toget &&
- cl->records < cl->hits) {
- client_send_present(cl);
+ *p++ = '\0'; /* cut the string in two */
+ while (*p == ' ')
+ p++;
+ if (increasing)
+ strcat(p, " <");
+ else
+ strcat(p, " >");
+ yaz_log(YLOG_LOG, "applying %s %s", spec, p);
+ ZOOM_query_sortby2(q, spec, p);
}
}
+ rs = ZOOM_connection_search(link, q);
+ ZOOM_query_destroy(q);
+ ZOOM_resultset_destroy(cl->resultset);
+ cl->resultset = rs;
+ connection_continue(co);
}
-struct client *client_create(void)
+struct client *client_create(const char *id)
{
- struct client *r;
- if (client_freelist)
- {
- r = client_freelist;
- client_freelist = client_freelist->next;
- }
- else
- r = xmalloc(sizeof(struct client));
- r->pquery = 0;
- r->database = 0;
- r->connection = 0;
- r->session = 0;
- r->hits = 0;
- r->records = 0;
- r->setno = 0;
- r->requestid = -1;
- r->diagnostic = 0;
- r->state = Client_Disconnected;
- r->show_raw = 0;
- r->next = 0;
- return r;
+ struct client *cl = xmalloc(sizeof(*cl));
+ cl->maxrecs = 100;
+ cl->startrecs = 0;
+ cl->pquery = 0;
+ cl->cqlquery = 0;
+ cl->database = 0;
+ cl->connection = 0;
+ cl->session = 0;
+ cl->hits = 0;
+ cl->record_offset = 0;
+ cl->diagnostic = 0;
+ cl->state = Client_Disconnected;
+ cl->show_raw = 0;
+ cl->resultset = 0;
+ cl->suggestions = 0;
+ cl->mutex = 0;
+ pazpar2_mutex_create(&cl->mutex, "client");
+ cl->preferred = 0;
+ cl->ref_count = 1;
+ assert(id);
+ cl->id = xstrdup(id);
+ client_use(1);
+
+ return cl;
}
-void client_destroy(struct client *c)
+void client_lock(struct client *c)
{
- struct session *se = c->session;
- if (c == se->clients)
- se->clients = c->next;
- else
+ yaz_mutex_enter(c->mutex);
+}
+
+void client_unlock(struct client *c)
+{
+ yaz_mutex_leave(c->mutex);
+}
+
+void client_incref(struct client *c)
+{
+ pazpar2_incref(&c->ref_count, c->mutex);
+ yaz_log(YLOG_DEBUG, "client_incref c=%p %s cnt=%d",
+ c, client_get_id(c), c->ref_count);
+}
+
+int client_destroy(struct client *c)
+{
+ if (c)
{
- struct client *cc;
- for (cc = se->clients; cc && cc->next != c; cc = cc->next)
- ;
- if (cc)
- cc->next = c->next;
+ yaz_log(YLOG_DEBUG, "client_destroy c=%p %s cnt=%d",
+ c, client_get_id(c), c->ref_count);
+ if (!pazpar2_decref(&c->ref_count, c->mutex))
+ {
+ xfree(c->pquery);
+ c->pquery = 0;
+ xfree(c->cqlquery);
+ c->cqlquery = 0;
+ xfree(c->id);
+ assert(!c->connection);
+
+ if (c->resultset)
+ {
+ ZOOM_resultset_destroy(c->resultset);
+ }
+ yaz_mutex_destroy(&c->mutex);
+ xfree(c);
+ client_use(-1);
+ return 1;
+ }
}
- xfree(c->pquery);
-
- if (c->connection)
- connection_release(c->connection);
- c->next = client_freelist;
- client_freelist = c;
+ return 0;
}
void client_set_connection(struct client *cl, struct connection *con)
{
- cl->connection = con;
+ if (cl->resultset)
+ ZOOM_resultset_release(cl->resultset);
+ if (con)
+ {
+ assert(cl->connection == 0);
+ cl->connection = con;
+ client_incref(cl);
+ }
+ else
+ {
+ cl->connection = con;
+ client_destroy(cl);
+ }
}
void client_disconnect(struct client *cl)
{
if (cl->state != Client_Idle)
- cl->state = Client_Disconnected;
+ client_set_state(cl, Client_Disconnected);
client_set_connection(cl, 0);
}
-// Extract terms from query into null-terminated termlist
-static void extract_terms(NMEM nmem, struct ccl_rpn_node *query, char **termlist)
-{
- int num = 0;
-
- pull_terms(nmem, query, termlist, &num);
- termlist[num] = 0;
-}
// Initialize CCL map for a target
static CCL_bibset prepare_cclmap(struct client *cl)
return res;
}
+// returns a xmalloced CQL query corresponding to the pquery in client
+static char *make_cqlquery(struct client *cl)
+{
+ cql_transform_t cqlt = cql_transform_create();
+ Z_RPNQuery *zquery;
+ char *r;
+ WRBUF wrb = wrbuf_alloc();
+ int status;
+ ODR odr_out = odr_createmem(ODR_ENCODE);
+
+ zquery = p_query_rpn(odr_out, cl->pquery);
+ yaz_log(YLOG_LOG, "PQF: %s", cl->pquery);
+ if ((status = cql_transform_rpn2cql_wrbuf(cqlt, wrb, zquery)))
+ {
+ yaz_log(YLOG_WARN, "Failed to generate CQL query, code=%d", status);
+ r = 0;
+ }
+ else
+ {
+ r = xstrdup(wrbuf_cstr(wrb));
+ }
+ wrbuf_destroy(wrb);
+ odr_destroy(odr_out);
+ cql_transform_close(cqlt);
+ return r;
+}
+
+// returns a xmalloced SOLR query corresponding to the pquery in client
+// TODO Could prob. be merge with the similar make_cqlquery
+static char *make_solrquery(struct client *cl)
+{
+ solr_transform_t sqlt = solr_transform_create();
+ Z_RPNQuery *zquery;
+ char *r;
+ WRBUF wrb = wrbuf_alloc();
+ int status;
+ ODR odr_out = odr_createmem(ODR_ENCODE);
+
+ zquery = p_query_rpn(odr_out, cl->pquery);
+ if (zquery == 0) {
+ yaz_log(YLOG_WARN, "Failed to generate RPN from PQF: %s", cl->pquery);
+ return 0;
+ }
+ yaz_log(YLOG_LOG, "PQF: %s", cl->pquery);
+ if ((status = solr_transform_rpn2solr_wrbuf(sqlt, wrb, zquery)))
+ {
+ yaz_log(YLOG_WARN, "Failed to generate SOLR query from PQF %s, code=%d", cl->pquery, status);
+ r = 0;
+ }
+ else
+ {
+ r = xstrdup(wrbuf_cstr(wrb));
+ }
+ wrbuf_destroy(wrb);
+ odr_destroy(odr_out);
+ solr_transform_close(sqlt);
+ return r;
+}
+
+static void apply_limit(struct session_database *sdb,
+ facet_limits_t facet_limits,
+ WRBUF w_pqf, WRBUF w_ccl)
+{
+ int i = 0;
+ const char *name;
+ const char *value;
+ NMEM nmem_tmp = nmem_create();
+ for (i = 0; (name = facet_limits_get(facet_limits, i, &value)); i++)
+ {
+ struct setting *s = 0;
+
+ for (s = sdb->settings[PZ_LIMITMAP]; s; s = s->next)
+ {
+ const char *p = strchr(s->name + 3, ':');
+ if (p && !strcmp(p + 1, name) && s->value)
+ {
+ char **values = 0;
+ int i, num = 0;
+ nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
+ &num, 1, '\\', 1);
+
+ if (!strncmp(s->value, "rpn:", 4))
+ {
+ const char *pqf = s->value + 4;
+
+ wrbuf_puts(w_pqf, "@and ");
+ wrbuf_puts(w_pqf, pqf);
+ wrbuf_puts(w_pqf, " ");
+ for (i = 0; i < num; i++)
+ {
+ if (i < num - 1)
+ wrbuf_puts(w_pqf, "@or ");
+ yaz_encode_pqf_term(w_pqf, values[i],
+ strlen(values[i]));
+ }
+ }
+ else if (!strncmp(s->value, "ccl:", 4))
+ {
+ const char *ccl = s->value + 4;
+
+ wrbuf_puts(w_ccl, " and (");
+
+ for (i = 0; i < num; i++)
+ {
+ if (i)
+ wrbuf_puts(w_ccl, " or ");
+ wrbuf_puts(w_ccl, ccl);
+ wrbuf_puts(w_ccl, "=\"");
+ wrbuf_puts(w_ccl, values[i]);
+ wrbuf_puts(w_ccl, "\"");
+ }
+ wrbuf_puts(w_ccl, ")");
+
+ }
+ break;
+ }
+ }
+ nmem_reset(nmem_tmp);
+ if (!s)
+ {
+ yaz_log(YLOG_WARN, "Target %s: limit %s used, but no limitmap defined",
+ (sdb->database ? sdb->database->id : "<no id>"), name);
+ }
+ }
+ nmem_destroy(nmem_tmp);
+}
+
// Parse the query given the settings specific to this client
-int client_parse_query(struct client *cl, const char *query)
+int client_parse_query(struct client *cl, const char *query,
+ facet_limits_t facet_limits)
{
struct session *se = client_get_session(cl);
+ struct session_database *sdb = client_get_database(cl);
struct ccl_rpn_node *cn;
int cerror, cpos;
CCL_bibset ccl_map = prepare_cclmap(cl);
-
+ const char *sru = session_setting_oneval(sdb, PZ_SRU);
+ const char *pqf_prefix = session_setting_oneval(sdb, PZ_PQF_PREFIX);
+ const char *pqf_strftime = session_setting_oneval(sdb, PZ_PQF_STRFTIME);
+ const char *query_syntax = session_setting_oneval(sdb, PZ_QUERY_SYNTAX);
+ WRBUF w_ccl, w_pqf;
if (!ccl_map)
return -1;
- cn = ccl_find_str(ccl_map, query, &cerror, &cpos);
+
+ cl->hits = -1;
+ w_ccl = wrbuf_alloc();
+ wrbuf_puts(w_ccl, query);
+
+ w_pqf = wrbuf_alloc();
+ if (*pqf_prefix)
+ {
+ wrbuf_puts(w_pqf, pqf_prefix);
+ wrbuf_puts(w_pqf, " ");
+ }
+
+ apply_limit(sdb, facet_limits, w_pqf, w_ccl);
+
+ yaz_log(YLOG_LOG, "CCL query: %s", wrbuf_cstr(w_ccl));
+ cn = ccl_find_str(ccl_map, wrbuf_cstr(w_ccl), &cerror, &cpos);
ccl_qual_rm(&ccl_map);
if (!cn)
{
- cl->state = Client_Error;
- yaz_log(YLOG_WARN, "Failed to parse query for %s",
- client_get_database(cl)->database->url);
+ client_set_state(cl, Client_Error);
+ session_log(se, YLOG_WARN, "Failed to parse CCL query '%s' for %s",
+ wrbuf_cstr(w_ccl),
+ client_get_id(cl));
+ wrbuf_destroy(w_ccl);
+ wrbuf_destroy(w_pqf);
return -1;
}
- wrbuf_rewind(se->wrbuf);
- ccl_pquery(se->wrbuf, cn);
+ wrbuf_destroy(w_ccl);
+
+ if (!pqf_strftime || !*pqf_strftime)
+ ccl_pquery(w_pqf, cn);
+ else
+ {
+ time_t cur_time = time(0);
+ struct tm *tm = localtime(&cur_time);
+ char tmp_str[300];
+ const char *cp = tmp_str;
+
+ /* see man strftime(3) for things .. In particular %% gets converted
+ to %.. And That's our original query .. */
+ strftime(tmp_str, sizeof(tmp_str)-1, pqf_strftime, tm);
+ for (; *cp; cp++)
+ {
+ if (cp[0] == '%')
+ ccl_pquery(w_pqf, cn);
+ else
+ wrbuf_putc(w_pqf, cp[0]);
+ }
+ }
xfree(cl->pquery);
- cl->pquery = xstrdup(wrbuf_cstr(se->wrbuf));
+ cl->pquery = xstrdup(wrbuf_cstr(w_pqf));
+ wrbuf_destroy(w_pqf);
+
+ yaz_log(YLOG_LOG, "PQF query: %s", cl->pquery);
+
+ xfree(cl->cqlquery);
+
+ /* Support for PQF on SRU targets. */
+ /* TODO Refactor */
+ yaz_log(YLOG_DEBUG, "Query syntax: %s", query_syntax);
+ if (strcmp(query_syntax, "pqf") != 0 && *sru)
+ {
+ if (!strcmp(sru, "solr")) {
+ if (!(cl->cqlquery = make_solrquery(cl)))
+ return -1;
+ }
+ else {
+ if (!(cl->cqlquery = make_cqlquery(cl)))
+ return -1;
+ }
+ }
+ else
+ cl->cqlquery = 0;
+ /* TODO FIX Not thread safe */
if (!se->relevance)
{
// Initialize relevance structure with query terms
- char *p[512];
- extract_terms(se->nmem, cn, p);
- se->relevance = relevance_create(client_get_database(cl)->pct,
- se->nmem, (const char **) p,
- se->expected_maxrecs);
+ se->relevance = relevance_create_ccl(
+ se->service->charsets, se->nmem, cn);
}
ccl_rpn_delete(cn);
void client_set_session(struct client *cl, struct session *se)
{
cl->session = se;
- cl->next = se->clients;
- se->clients = cl;
}
int client_is_active(struct client *cl)
{
if (cl->connection && (cl->state == Client_Connecting ||
- cl->state == Client_Initializing ||
- cl->state == Client_Searching ||
- cl->state == Client_Presenting))
+ cl->state == Client_Working))
return 1;
return 0;
}
-struct client *client_next_in_session(struct client *cl)
+int client_is_active_preferred(struct client *cl)
{
- if (cl)
- return cl->next;
+ /* only count if this is a preferred target. */
+ if (!cl->preferred)
+ return 0;
+ /* TODO No sure this the condition that Seb wants */
+ if (cl->connection && (cl->state == Client_Connecting ||
+ cl->state == Client_Working))
+ return 1;
return 0;
-
}
-int client_get_hits(struct client *cl)
+Odr_int client_get_hits(struct client *cl)
{
return cl->hits;
}
int client_get_num_records(struct client *cl)
{
- return cl->records;
+ return cl->record_offset;
+}
+
+void client_set_diagnostic(struct client *cl, int diagnostic)
+{
+ cl->diagnostic = diagnostic;
}
int client_get_diagnostic(struct client *cl)
return cl->diagnostic;
}
+const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf)
+{
+ int idx;
+ struct suggestions *suggestions = cl->suggestions;
+ if (!suggestions || suggestions->num == 0) {
+ return "";
+ }
+ for (idx = 0; idx < suggestions->num; idx++) {
+ wrbuf_printf(wrbuf, "<suggest term=\"%s\"", suggestions->suggest[idx]);
+ if (suggestions->misspelled[idx] && suggestions->misspelled[idx]) {
+ wrbuf_puts(wrbuf, suggestions->misspelled[idx]);
+ wrbuf_puts(wrbuf, "</suggest>\n");
+ }
+ else
+ wrbuf_puts(wrbuf, "/>\n");
+ }
+ return wrbuf_cstr(wrbuf);
+}
+
+
void client_set_database(struct client *cl, struct session_database *db)
{
cl->database = db;
}
-struct host *client_get_host(struct client *cl)
+const char *client_get_id(struct client *cl)
+{
+ return cl->id;
+}
+
+void client_set_maxrecs(struct client *cl, int v)
+{
+ cl->maxrecs = v;
+}
+
+int client_get_maxrecs(struct client *cl)
+{
+ return cl->maxrecs;
+}
+
+void client_set_startrecs(struct client *cl, int v)
{
- return client_get_database(cl)->database->host;
+ cl->startrecs = v;
}
-const char *client_get_url(struct client *cl)
+void client_set_preferred(struct client *cl, int v)
{
- return client_get_database(cl)->database->url;
+ cl->preferred = v;
+}
+
+
+struct suggestions* client_suggestions_create(const char* suggestions_string) {
+ if (suggestions_string == 0)
+ return 0;
+ int i;
+ NMEM nmem = nmem_create();
+ struct suggestions *suggestions = nmem_malloc(nmem, sizeof(*suggestions));
+ suggestions->nmem = nmem;
+ suggestions->num = 0;
+ suggestions->misspelled = 0;
+ suggestions->suggest = 0;
+ if (suggestions_string)
+ nmem_strsplit_escape2(suggestions->nmem, "\n", suggestions_string, &suggestions->suggest,
+ &suggestions->num, 1, '\\', 0);
+ /* Set up misspelled array */
+ suggestions->misspelled = (char **) nmem_malloc(nmem, suggestions->num * sizeof(**suggestions->misspelled));
+ /* replace = with \0 .. for each item */
+ for (i = 0; i < suggestions->num; i++)
+ {
+ char *cp = strchr(suggestions->suggest[i], '=');
+ if (cp) {
+ *cp = '\0';
+ suggestions->misspelled[i] = cp+1;
+ }
+ }
+ return suggestions;
+}
+
+static void client_suggestions_destroy(struct client *cl)
+{
+ nmem_destroy(cl->suggestions->nmem);
+ cl->suggestions = 0;
}
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
+