/* This file is part of Pazpar2.
- Copyright (C) 2006-2011 Index Data
+ Copyright (C) 2006-2012 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
#include "settings.h"
#include "normalize7bit.h"
+#include <libxml/tree.h>
+
#define TERMLIST_HIGH_SCORE 25
#define MAX_CHUNK 15
struct client_list *next;
};
-struct session_sorted_results {
- const char *field;
- int increasing;
- struct session_sorted_results *next;
-};
-
/* session counting (1) , disable client counting (0) */
static YAZ_MUTEX g_session_mutex = 0;
static int no_sessions = 0;
yaz_mutex_leave(s->session_mutex);
}
-void add_facet(struct session *s, const char *type, const char *value, int count)
+static void session_normalize_facet(struct session *s, const char *type,
+ const char *value,
+ WRBUF display_wrbuf,
+ WRBUF facet_wrbuf)
{
struct conf_service *service = s->service;
pp2_charset_token_t prt;
const char *facet_component;
- WRBUF facet_wrbuf = wrbuf_alloc();
- WRBUF display_wrbuf = wrbuf_alloc();
int i;
const char *icu_chain_id = 0;
}
}
pp2_charset_token_destroy(prt);
+}
+
+void add_facet(struct session *s, const char *type, const char *value, int count)
+{
+ WRBUF facet_wrbuf = wrbuf_alloc();
+ WRBUF display_wrbuf = wrbuf_alloc();
+
+ session_normalize_facet(s, type, value, display_wrbuf, facet_wrbuf);
if (wrbuf_len(facet_wrbuf))
{
{
const char *s;
- if (!sdb->settings)
- {
- session_log(se, YLOG_WARN, "No settings on %s", sdb->database->id);
- return -1;
- }
- if ((s = session_setting_oneval(sdb, PZ_XSLT)))
+ if (sdb->settings && sdb->settings[PZ_XSLT] && !sdb->map &&
+ (s = session_setting_oneval(sdb, PZ_XSLT)))
{
char auto_stylesheet[256];
}
}
sdb->map = normalize_cache_get(se->normalize_cache,
- se->service->server->config, s);
+ se->service, s);
if (!sdb->map)
return -1;
}
return 0;
}
-// This analyzes settings and recomputes any supporting data structures
-// if necessary.
-static int prepare_session_database(struct session *se,
- struct session_database *sdb)
-{
- if (!sdb->settings)
- {
- session_log(se, YLOG_WARN,
- "No settings associated with %s", sdb->database->id);
- return -1;
- }
- if (sdb->settings[PZ_XSLT] && !sdb->map)
- {
- if (prepare_map(se, sdb) < 0)
- return -1;
- }
- return 0;
-}
-
// called if watch should be removed because http_channel is to be destroyed
static void session_watch_cancel(void *data, struct http_channel *c,
void *data2)
static void select_targets_callback(struct session *se,
struct session_database *db)
{
- struct client *cl = client_create(db->database->id);
+ struct client *cl;
struct client_list *l;
- client_set_database(cl, db);
+ for (l = se->clients_cached; l; l = l->next)
+ if (client_get_database(l->client) == db)
+ break;
+
+ if (l)
+ cl = l->client;
+ else
+ {
+ cl = client_create(db->database->id);
+ client_set_database(cl, db);
+ l = xmalloc(sizeof(*l));
+ l->client = cl;
+ l->next = se->clients_cached;
+ se->clients_cached = l;
+ }
+ /* set session always. If may be 0 if client is not active */
client_set_session(cl, se);
l = xmalloc(sizeof(*l));
l->client = cl;
- l->next = se->clients;
- se->clients = l;
+ l->next = se->clients_active;
+ se->clients_active = l;
}
-static void session_remove_clients(struct session *se)
+static void session_reset_active_clients(struct session *se,
+ struct client_list *new_list)
{
struct client_list *l;
session_enter(se);
- l = se->clients;
- se->clients = 0;
+ l = se->clients_active;
+ se->clients_active = new_list;
+ session_leave(se);
+
+ while (l)
+ {
+ struct client_list *l_next = l->next;
+
+ client_lock(l->client);
+ client_set_session(l->client, 0); /* mark client inactive */
+ client_unlock(l->client);
+
+ xfree(l);
+ l = l_next;
+ }
+}
+
+static void session_remove_cached_clients(struct session *se)
+{
+ struct client_list *l;
+
+ session_reset_active_clients(se, 0);
+
+ session_enter(se);
+ l = se->clients_cached;
+ se->clients_cached = 0;
session_leave(se);
while (l)
struct client_list *l;
int res = 0;
- for (l = s->clients; l; l = l->next)
+ for (l = s->clients_active; l; l = l->next)
if (client_is_active(l->client))
res++;
struct client_list *l;
int res = 0;
- for (l = s->clients; l; l = l->next)
+ for (l = s->clients_active; l; l = l->next)
if (client_is_active_preferred(l->client))
res++;
session_log(s, YLOG_DEBUG, "Has %d active preferred clients.", res);
return res == 0;
}
-static const char *get_strategy_plus_sort(struct client *l, const char *field)
-{
- struct session_database *sdb = client_get_database(l);
- struct setting *s;
-
- const char *strategy_plus_sort = 0;
-
- for (s = sdb->settings[PZ_SORTMAP]; s; s = s->next)
- {
- char *p = strchr(s->name + 3, ':');
- if (!p)
- {
- yaz_log(YLOG_WARN, "Malformed sortmap name: %s", s->name);
- continue;
- }
- p++;
- if (!strcmp(p, field))
- {
- strategy_plus_sort = s->value;
- break;
- }
- }
- return strategy_plus_sort;
-}
-
void session_sort(struct session *se, const char *field, int increasing)
{
struct session_sorted_results *sr;
sr->next = se->sorted_results;
se->sorted_results = sr;
- for (l = se->clients; l; l = l->next)
+ for (l = se->clients_active; l; l = l->next)
{
struct client *cl = l->client;
- const char *strategy_plus_sort = get_strategy_plus_sort(cl, field);
- if (strategy_plus_sort)
- {
- struct timeval tval;
- if (client_prep_connection(cl, se->service->z3950_operation_timeout,
- se->service->z3950_session_timeout,
- se->service->server->iochan_man,
- &tval))
- client_start_search(cl, strategy_plus_sort, increasing);
- }
+ if (client_get_state(cl) == Client_Connecting ||
+ client_get_state(cl) == Client_Idle ||
+ client_get_state(cl) == Client_Working)
+ client_start_search(cl);
}
session_leave(se);
}
{
int live_channels = 0;
int no_working = 0;
- int no_failed = 0;
- struct client_list *l;
+ int no_failed_query = 0;
+ int no_failed_limit = 0;
+ struct client_list *l, *l0;
struct timeval tval;
facet_limits_t facet_limits;
*addinfo = 0;
- session_remove_clients(se);
+ if (se->settings_modified)
+ session_remove_cached_clients(se);
+ else
+ session_reset_active_clients(se, 0);
session_enter(se);
reclist_destroy(se->reclist);
se->reclist = 0;
+ se->settings_modified = 0;
relevance_destroy(&se->relevance);
nmem_reset(se->nmem);
se->total_records = se->total_merged = 0;
session_leave(se);
return PAZPAR2_MALFORMED_PARAMETER_VALUE;
}
- for (l = se->clients; l; l = l->next)
+
+ l0 = se->clients_active;
+ se->clients_active = 0;
+ session_leave(se);
+
+ for (l = l0; l; l = l->next)
{
+ int parse_ret;
struct client *cl = l->client;
- const char *strategy_plus_sort = get_strategy_plus_sort(cl, sort_field);
-
- if (maxrecs)
- client_set_maxrecs(cl, atoi(maxrecs));
- if (startrecs)
- client_set_startrecs(cl, atoi(startrecs));
- if (prepare_session_database(se, client_get_database(cl)) < 0)
- ;
- else if (client_parse_query(cl, query, facet_limits) < 0)
- no_failed++;
+
+ if (prepare_map(se, client_get_database(cl)) < 0)
+ continue;
+
+ parse_ret = client_parse_query(cl, query, facet_limits, startrecs,
+ maxrecs);
+ if (parse_ret == -1)
+ no_failed_query++;
+ else if (parse_ret == -2)
+ no_failed_limit++;
else
{
- no_working++;
- if (client_prep_connection(cl, se->service->z3950_operation_timeout,
+ int r =
+ client_prep_connection(cl, se->service->z3950_operation_timeout,
se->service->z3950_session_timeout,
se->service->server->iochan_man,
- &tval))
- client_start_search(cl, strategy_plus_sort, increasing);
+ &tval);
+ if (parse_ret == 1 && r == 2)
+ {
+ session_log(se, YLOG_LOG, "client REUSE %s", client_get_id(cl));
+ client_reingest(cl);
+ }
+ else if (r)
+ {
+ session_log(se, YLOG_LOG, "client NEW %s", client_get_id(cl));
+ client_start_search(cl);
+ }
+ no_working++;
}
}
facet_limits_destroy(facet_limits);
- session_leave(se);
+ session_reset_active_clients(se, l0);
+
if (no_working == 0)
{
- if (no_failed > 0)
+ if (no_failed_query > 0)
{
*addinfo = "query";
return PAZPAR2_MALFORMED_PARAMETER_VALUE;
}
+ else if (no_failed_limit > 0)
+ {
+ *addinfo = "limit";
+ return PAZPAR2_MALFORMED_PARAMETER_VALUE;
+ }
else
return PAZPAR2_NO_TARGETS;
}
+ yaz_log(YLOG_LOG, "session_start_search done");
return PAZPAR2_NO_ERROR;
}
static struct session_database *load_session_database(struct session *se,
char *id)
{
- struct database *db = new_database(id, se->session_nmem);
-
+ struct database *db = new_database_inherit_settings(id, se->session_nmem, se->service->settings);
session_init_databases_fun((void*) se, db);
// New sdb is head of se->databases list
new->next = sdb->settings[offset];
sdb->settings[offset] = new;
+ se->settings_modified = 1;
+
// Force later recompute of settings-driven data structures
// (happens when a search starts and client connections are prepared)
switch (offset)
}
}
-void session_destroy(struct session *se) {
+void session_destroy(struct session *se)
+{
struct session_database *sdb;
session_log(se, YLOG_DEBUG, "Destroying");
session_use(-1);
- session_remove_clients(se);
+ session_remove_cached_clients(se);
for (sdb = se->databases; sdb; sdb = sdb->next)
session_database_destroy(sdb);
yaz_mutex_destroy(&se->session_mutex);
}
-/* Depreciated: use session_destroy */
-void destroy_session(struct session *se)
-{
- session_destroy(se);
-}
-
size_t session_get_memory_status(struct session *session) {
size_t session_nmem;
if (session == 0)
session->number_of_warnings_unknown_metadata = 0;
session->num_termlists = 0;
session->reclist = 0;
- session->clients = 0;
+ session->clients_active = 0;
+ session->clients_cached = 0;
+ session->settings_modified = 0;
session->session_nmem = nmem;
session->nmem = nmem_create();
session->databases = 0;
return session;
}
+const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf);
+
static struct hitsbytarget *hitsbytarget_nb(struct session *se,
int *count, NMEM nmem)
{
struct client_list *l;
size_t sz = 0;
- for (l = se->clients; l; l = l->next)
+ for (l = se->clients_active; l; l = l->next)
sz++;
res = nmem_malloc(nmem, sizeof(*res) * sz);
*count = 0;
- for (l = se->clients; l; l = l->next)
+ for (l = se->clients_active; l; l = l->next)
{
struct client *cl = l->client;
WRBUF w = wrbuf_alloc();
res[*count].id = client_get_id(cl);
res[*count].name = *name ? name : "Unknown";
res[*count].hits = client_get_hits(cl);
+ res[*count].approximation = client_get_approximation(cl);
res[*count].records = client_get_num_records(cl);
- res[*count].diagnostic = client_get_diagnostic(cl);
+ res[*count].filtered = client_get_num_records_filtered(cl);
+ res[*count].diagnostic =
+ client_get_diagnostic(cl, &res[*count].addinfo);
res[*count].state = client_get_state_str(cl);
res[*count].connected = client_get_connection(cl) ? 1 : 0;
session_settings_dump(se, client_get_database(cl), w);
res[*count].settings_xml = nmem_strdup(nmem, wrbuf_cstr(w));
+ wrbuf_rewind(w);
+ wrbuf_puts(w, "");
+ res[*count].suggestions_xml = nmem_strdup(nmem, client_get_suggestions_xml(cl, w));
wrbuf_destroy(w);
(*count)++;
}
return h2->hits - h1->hits;
}
+// Compares two hitsbytarget nodes by hitcount
+static int cmp_ht_approx(const void *p1, const void *p2)
+{
+ const struct hitsbytarget *h1 = p1;
+ const struct hitsbytarget *h2 = p2;
+ return h2->approximation - h1->approximation;
+}
+
static int targets_termlist_nb(WRBUF wrbuf, struct session *se, int num,
- NMEM nmem)
+ NMEM nmem, int version)
{
struct hitsbytarget *ht;
int count, i;
ht = hitsbytarget_nb(se, &count, nmem);
- qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
+ if (version >= 2)
+ qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht_approx);
+ else
+ qsort(ht, count, sizeof(struct hitsbytarget), cmp_ht);
for (i = 0; i < count && i < num && ht[i].hits > 0; i++)
{
wrbuf_printf(wrbuf, "<frequency>" ODR_INT_PRINTF "</frequency>\n",
ht[i].hits);
-
+
+ if (version >= 2) {
+ // Should not print if we know it isn't a approximation.
+ wrbuf_printf(wrbuf, "<approximation>" ODR_INT_PRINTF "</approximation>\n", ht[i].approximation);
+ wrbuf_printf(wrbuf, "<records>%d</records>\n", ht[i].records - ht[i].filtered);
+ wrbuf_printf(wrbuf, "<filtered>%d</filtered>\n", ht[i].filtered);
+ }
+
wrbuf_puts(wrbuf, "<state>");
wrbuf_xmlputs(wrbuf, ht[i].state);
wrbuf_puts(wrbuf, "</state>\n");
}
void perform_termlist(struct http_channel *c, struct session *se,
- const char *name, int num)
+ const char *name, int num, int version)
{
int i, j;
NMEM nmem_tmp = nmem_create();
char **names;
int num_names = 0;
- if (name)
- nmem_strsplit(nmem_tmp, ",", name, &names, &num_names);
+ if (!name)
+ name = "*";
+
+ nmem_strsplit(nmem_tmp, ",", name, &names, &num_names);
session_enter(se);
for (j = 0; j < num_names; j++)
{
const char *tname;
+ int must_generate_empty = 1; /* bug 5350 */
+
for (i = 0; i < se->num_termlists; i++)
{
tname = se->termlists[i].name;
- if (num_names > 0 && !strcmp(names[j], tname))
+ if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
{
struct termlist_score **p = 0;
int len;
+
+ wrbuf_puts(c->wrbuf, "<list name=\"");
+ wrbuf_xmlputs(c->wrbuf, tname);
+ wrbuf_puts(c->wrbuf, "\">\n");
+ must_generate_empty = 0;
+
p = termlist_highscore(se->termlists[i].termlist, &len);
if (p)
{
int i;
- wrbuf_puts(c->wrbuf, "<list name=\"");
- wrbuf_xmlputs(c->wrbuf, tname);
- wrbuf_puts(c->wrbuf, "\">\n");
for (i = 0; i < len && i < num; i++)
{
// prevent sending empty term elements
p[i]->frequency);
wrbuf_puts(c->wrbuf, "</term>\n");
}
- wrbuf_puts(c->wrbuf, "</list>\n");
}
+ wrbuf_puts(c->wrbuf, "</list>\n");
}
}
tname = "xtargets";
- if (num_names > 0 && !strcmp(names[j], tname))
+ if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
{
wrbuf_puts(c->wrbuf, "<list name=\"");
wrbuf_xmlputs(c->wrbuf, tname);
wrbuf_puts(c->wrbuf, "\">\n");
- targets_termlist_nb(c->wrbuf, se, num, c->nmem);
+
+ targets_termlist_nb(c->wrbuf, se, num, c->nmem, version);
wrbuf_puts(c->wrbuf, "</list>\n");
+ must_generate_empty = 0;
+ }
+ if (must_generate_empty)
+ {
+ wrbuf_puts(c->wrbuf, "<list name=\"");
+ wrbuf_xmlputs(c->wrbuf, names[j]);
+ wrbuf_puts(c->wrbuf, "\"/>\n");
}
}
session_leave(se);
struct record_cluster **show_range_start(struct session *se,
struct reclist_sortparms *sp,
- int start, int *num, int *total, Odr_int *sumhits)
+ int start, int *num, int *total, Odr_int *sumhits, Odr_int *approx_hits)
{
struct record_cluster **recs;
struct reclist_sortparms *spp;
{
*num = 0;
*total = 0;
- *sumhits = 0;
+ *sumhits = 0;
+ *approx_hits = 0;
recs = 0;
}
else
*total = reclist_get_num_records(se->reclist);
*sumhits = 0;
- for (l = se->clients; l; l = l->next)
+ *approx_hits = 0;
+ for (l = se->clients_active; l; l = l->next) {
*sumhits += client_get_hits(l->client);
-
+ *approx_hits += client_get_approximation(l->client);
+ }
for (i = 0; i < start; i++)
if (!reclist_read_record(se->reclist))
{
memset(stat, 0, sizeof(*stat));
stat->num_hits = 0;
- for (l = se->clients; l; l = l->next)
+ for (l = se->clients_active; l; l = l->next)
{
struct client *cl = l->client;
if (!client_get_connection(cl))
if (!check_record_filter(root, sdb))
{
- session_log(se, YLOG_LOG, "Filtered out record no %d from %s",
- record_no, sdb->database->id);
+ session_log(se, YLOG_LOG, "Filtered out record no %d from %s", record_no, sdb->database->id);
xmlFreeDoc(xdoc);
return -2;
}
}
session_enter(se);
if (client_get_session(cl) == se)
- ingest_to_cluster(cl, xdoc, root, record_no, mergekey_norm);
+ ret = ingest_to_cluster(cl, xdoc, root, record_no, mergekey_norm);
session_leave(se);
xmlFreeDoc(xdoc);
return ret;
}
+// Skip record on non-zero
+static int check_limit_local(struct client *cl,
+ struct record *record,
+ int record_no)
+{
+ int skip_record = 0;
+ struct session *se = client_get_session(cl);
+ struct conf_service *service = se->service;
+ NMEM nmem_tmp = nmem_create();
+ struct session_database *sdb = client_get_database(cl);
+ int l = 0;
+ while (!skip_record)
+ {
+ struct conf_metadata *ser_md = 0;
+ struct record_metadata *rec_md = 0;
+ int md_field_id;
+ char **values = 0;
+ int i, num_v = 0;
+
+ const char *name = client_get_facet_limit_local(cl, sdb, &l, nmem_tmp, &num_v, &values);
+ if (!name)
+ break;
+
+ md_field_id = conf_service_metadata_field_id(service, name);
+ if (md_field_id < 0)
+ {
+ skip_record = 1;
+ break;
+ }
+ ser_md = &service->metadata[md_field_id];
+ rec_md = record->metadata[md_field_id];
+ yaz_log(YLOG_LOG, "check limit local %s", name);
+ for (i = 0; i < num_v; )
+ {
+ if (rec_md)
+ {
+ if (ser_md->type == Metadata_type_year
+ || ser_md->type == Metadata_type_date)
+ {
+ int y = atoi(values[i]);
+ if (y >= rec_md->data.number.min
+ && y <= rec_md->data.number.max)
+ break;
+ }
+ else
+ {
+ yaz_log(YLOG_LOG, "cmp: '%s' '%s'", rec_md->data.text.disp, values[i]);
+ if (!strcmp(rec_md->data.text.disp, values[i]))
+ {
+ // Value equals, should not be filtered.
+ break;
+ }
+ }
+ rec_md = rec_md->next;
+ }
+ else
+ {
+ rec_md = record->metadata[md_field_id];
+ i++;
+ }
+ }
+ // At end , not match
+ if (i == num_v)
+ {
+ skip_record = 1;
+ break;
+ }
+ }
+ nmem_destroy(nmem_tmp);
+ return skip_record;
+}
+
static int ingest_to_cluster(struct client *cl,
xmlDoc *xdoc,
xmlNode *root,
}
}
+ if (check_limit_local(cl, record, record_no))
+ {
+ session_log(se, YLOG_LOG, "Facet filtered out record no %d from %s",
+ record_no, sdb->database->id);
+ if (type)
+ xmlFree(type);
+ if (value)
+ xmlFree(value);
+ return -2;
+ }
cluster = reclist_insert(se->reclist, service, record,
mergekey_norm, &se->total_merged);
if (!cluster)
va_start(ap, fmt);
yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap);
- yaz_log(level, "Session (%u): %s", s->session_id, buf);
+ yaz_log(level, "Session %u: %s", s->session_id, buf);
va_end(ap);
}