-/* $Id: logic.c,v 1.27 2007-05-10 11:46:09 adam Exp $
- Copyright (c) 2006-2007, Index Data.
-
-This file is part of Pazpar2.
+/* This file is part of Pazpar2.
+ Copyright (C) 2006-2009 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 logic.c
\brief high-level logic; mostly user sessions and settings
*/
+#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/nmem.h>
#include <yaz/query-charset.h>
#include <yaz/querytowrbuf.h>
-#if YAZ_VERSIONL >= 0x020163
#include <yaz/oid_db.h>
-#endif
-
-#if HAVE_CONFIG_H
-#include "cconfig.h"
-#endif
+#include <yaz/snprintf.h>
#define USE_TIMING 0
#if USE_TIMING
#include <yaz/timing.h>
#endif
-#include <netinet/in.h>
-
+#include "parameters.h"
#include "pazpar2.h"
#include "eventl.h"
#include "http.h"
#include "termlists.h"
#include "reclists.h"
#include "relevance.h"
-#include "config.h"
#include "database.h"
#include "client.h"
#include "settings.h"
#include "normalize7bit.h"
+#define TERMLIST_HIGH_SCORE 25
+
#define MAX_CHUNK 15
// Note: Some things in this structure will eventually move to configuration
struct parameters global_parameters =
{
- "",
- "",
- "",
- "",
- 0,
- 0,
- 30,
- "81",
- "Index Data PazPar2",
- VERSION,
- 600, // 10 minutes
- 60,
+ 0, // dump_records
+ 0, // debug_mode
100,
- MAX_CHUNK,
- 0,
- 0
};
+static void log_xml_doc(xmlDoc *doc)
+{
+ FILE *lf = yaz_log_file();
+ xmlChar *result = 0;
+ int len = 0;
+#if LIBXML_VERSION >= 20600
+ xmlDocDumpFormatMemory(doc, &result, &len, 1);
+#else
+ xmlDocDumpMemory(doc, &result, &len);
+#endif
+ if (lf && len)
+ {
+ fwrite(result, 1, len, lf);
+ fprintf(lf, "\n");
+ }
+ xmlFree(result);
+}
// Recursively traverse query structure to extract terms.
void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num)
switch (n->kind)
{
- case CCL_RPN_AND:
- case CCL_RPN_OR:
- case CCL_RPN_NOT:
- case CCL_RPN_PROX:
- pull_terms(nmem, n->u.p[0], termlist, num);
- pull_terms(nmem, n->u.p[1], termlist, num);
- break;
- case CCL_RPN_TERM:
- nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
- for (i = 0; i < numwords; i++)
- termlist[(*num)++] = words[i];
- break;
- default: // NOOP
- break;
+ case CCL_RPN_AND:
+ case CCL_RPN_OR:
+ case CCL_RPN_NOT:
+ case CCL_RPN_PROX:
+ pull_terms(nmem, n->u.p[0], termlist, num);
+ pull_terms(nmem, n->u.p[1], termlist, num);
+ break;
+ case CCL_RPN_TERM:
+ nmem_strsplit(nmem, " ", n->u.t.term, &words, &numwords);
+ for (i = 0; i < numwords; i++)
+ termlist[(*num)++] = words[i];
+ break;
+ default: // NOOP
+ break;
}
}
s->termlists[i].name = nmem_strdup(s->nmem, type);
s->termlists[i].termlist
- = termlist_create(s->nmem, s->expected_maxrecs, 15);
+ = termlist_create(s->nmem, s->expected_maxrecs,
+ TERMLIST_HIGH_SCORE);
s->num_termlists = i + 1;
}
termlist_insert(s->termlists[i].termlist, value);
}
-xmlDoc *normalize_record(struct session_database *sdb, Z_External *rec)
+xmlDoc *record_to_xml(struct session_database *sdb, const char *rec)
{
- struct database_retrievalmap *m;
struct database *db = sdb->database;
- xmlNode *res;
- xmlDoc *rdoc;
+ xmlDoc *rdoc = 0;
- // First normalize to XML
- if (sdb->yaz_marc)
- {
- char *buf;
- int len;
- if (rec->which != Z_External_octet)
- {
- yaz_log(YLOG_WARN, "Unexpected external branch, probably BER %s",
- db->url);
- return 0;
- }
- buf = (char*) rec->u.octet_aligned->buf;
- len = rec->u.octet_aligned->len;
- if (yaz_marc_read_iso2709(sdb->yaz_marc, buf, len) < 0)
- {
- yaz_log(YLOG_WARN, "Failed to decode MARC %s", db->url);
- return 0;
- }
+ rdoc = xmlParseMemory(rec, strlen(rec));
- yaz_marc_write_using_libxml2(sdb->yaz_marc, 1);
- if (yaz_marc_write_xml(sdb->yaz_marc, &res,
- "http://www.loc.gov/MARC21/slim", 0, 0) < 0)
- {
- yaz_log(YLOG_WARN, "Failed to encode as XML %s",
- db->url);
- return 0;
- }
- rdoc = xmlNewDoc((xmlChar *) "1.0");
- xmlDocSetRootElement(rdoc, res);
-
- }
- else
+ if (!rdoc)
{
- yaz_log(YLOG_FATAL,
- "Unknown native_syntax in normalize_record from %s",
+ yaz_log(YLOG_FATAL, "Non-wellformed XML received from %s",
db->url);
return 0;
}
- if (global_parameters.dump_records){
- fprintf(stderr,
- "Input Record (normalized) from %s\n----------------\n",
- db->url);
-#if LIBXML_VERSION >= 20600
- xmlDocFormatDump(stderr, rdoc, 1);
-#else
- xmlDocDump(stderr, rdoc);
-#endif
- }
-
- for (m = sdb->map; m; m = m->next){
- xmlDoc *new = 0;
-
-#if 1
- {
- xmlNodePtr root = 0;
- new = xsltApplyStylesheet(m->stylesheet, rdoc, 0);
- root= xmlDocGetRootElement(new);
- if (!new || !root || !(root->children))
- {
- yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
- sdb->database->url);
- xmlFreeDoc(new);
- xmlFreeDoc(rdoc);
- return 0;
- }
- }
-#else
- // do it another way to detect transformation errors right now
- // but does not seem to work either!
- {
- xsltTransformContextPtr ctxt;
- ctxt = xsltNewTransformContext(m->stylesheet, rdoc);
- new = xsltApplyStylesheetUser(m->stylesheet, rdoc, 0, 0, 0, ctxt);
- if ((ctxt->state == XSLT_STATE_ERROR) ||
- (ctxt->state == XSLT_STATE_STOPPED)){
- yaz_log(YLOG_WARN, "XSLT transformation failed from %s",
- cl->database->database->url);
- xmlFreeDoc(new);
- xmlFreeDoc(rdoc);
- return 0;
- }
- }
-#endif
-
- xmlFreeDoc(rdoc);
- rdoc = new;
- }
if (global_parameters.dump_records)
{
- fprintf(stderr, "Record from %s\n----------------\n",
- sdb->database->url);
-#if LIBXML_VERSION >= 20600
- xmlDocFormatDump(stderr, rdoc, 1);
-#else
- xmlDocDump(stderr, rdoc);
-#endif
+ yaz_log(YLOG_LOG, "Un-normalized record from %s", db->url);
+ log_xml_doc(rdoc);
}
+
return rdoc;
}
-// Retrieve first defined value for 'name' for given database.
-// Will be extended to take into account user associated with session
-char *session_setting_oneval(struct session_database *db, int offset)
+#define MAX_XSLT_ARGS 16
+
+// Add static values from session database settings if applicable
+static void insert_settings_parameters(struct session_database *sdb,
+ struct session *se, char **parms)
{
- if (!db->settings[offset])
- return "";
- return db->settings[offset]->value;
-}
+ struct conf_service *service = se->service;
+ int i;
+ int nparms = 0;
+ int offset = 0;
+ for (i = 0; i < service->num_metadata; i++)
+ {
+ struct conf_metadata *md = &service->metadata[i];
+ int setting;
+ if (md->setting == Metadata_setting_parameter &&
+ (setting = settings_offset(service, md->name)) > 0)
+ {
+ const char *val = session_setting_oneval(sdb, setting);
+ if (val && nparms < MAX_XSLT_ARGS)
+ {
+ char *buf;
+ int len = strlen(val);
+ buf = nmem_malloc(se->nmem, len + 3);
+ buf[0] = '\'';
+ strcpy(buf + 1, val);
+ buf[len+1] = '\'';
+ buf[len+2] = '\0';
+ parms[offset++] = md->name;
+ parms[offset++] = buf;
+ nparms++;
+ }
+ }
+ }
+ parms[offset] = 0;
+}
-// Initialize YAZ Map structures for MARC-based targets
-static int prepare_yazmarc(struct session_database *sdb)
+// Add static values from session database settings if applicable
+static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
+ struct conf_service *service)
{
- char *s;
+ int i;
- if (!sdb->settings)
+ for (i = 0; i < service->num_metadata; i++)
{
- yaz_log(YLOG_WARN, "No settings for %s", sdb->database->url);
- return -1;
+ struct conf_metadata *md = &service->metadata[i];
+ int offset;
+
+ if (md->setting == Metadata_setting_postproc &&
+ (offset = settings_offset(service, md->name)) > 0)
+ {
+ const char *val = session_setting_oneval(sdb, offset);
+ if (val)
+ {
+ xmlNode *r = xmlDocGetRootElement(doc);
+ xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
+ (xmlChar *) val);
+ xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
+ }
+ }
}
- if ((s = session_setting_oneval(sdb, PZ_NATIVESYNTAX))
- && !strncmp(s, "iso2709", 7))
- {
- char *encoding = "marc-8s", *e;
- yaz_iconv_t cm;
+}
- // See if a native encoding is specified
- if ((e = strchr(s, ';')))
- encoding = e + 1;
+xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
+ const char *rec)
+{
+ xmlDoc *rdoc = record_to_xml(sdb, rec);
- sdb->yaz_marc = yaz_marc_create();
- yaz_marc_subfield_str(sdb->yaz_marc, "\t");
+ if (rdoc)
+ {
+ char *parms[MAX_XSLT_ARGS*2+1];
- cm = yaz_iconv_open("utf-8", encoding);
- if (!cm)
+ insert_settings_parameters(sdb, se, parms);
+
+ if (normalize_record_transform(sdb->map, &rdoc, (const char **)parms))
{
- yaz_log(YLOG_FATAL,
- "Unable to map from %s to UTF-8 for target %s",
- encoding, sdb->database->url);
- return -1;
+ yaz_log(YLOG_WARN, "Normalize failed from %s", sdb->database->url);
+ }
+ else
+ {
+ insert_settings_values(sdb, rdoc, se->service);
+
+ if (global_parameters.dump_records)
+ {
+ yaz_log(YLOG_LOG, "Normalized record from %s",
+ sdb->database->url);
+ log_xml_doc(rdoc);
+ }
}
- yaz_marc_iconv(sdb->yaz_marc, cm);
}
- return 0;
+ return rdoc;
+}
+
+// Retrieve first defined value for 'name' for given database.
+// Will be extended to take into account user associated with session
+const char *session_setting_oneval(struct session_database *db, int offset)
+{
+ if (!db->settings[offset])
+ return "";
+ return db->settings[offset]->value;
}
// Prepare XSLT stylesheets for record normalization
// setting. However, this is not a realistic use scenario.
static int prepare_map(struct session *se, struct session_database *sdb)
{
- char *s;
+ const char *s;
if (!sdb->settings)
{
}
if ((s = session_setting_oneval(sdb, PZ_XSLT)))
{
- char **stylesheets;
- struct database_retrievalmap **m = &sdb->map;
- int num, i;
+ char auto_stylesheet[256];
- nmem_strsplit(se->session_nmem, ",", s, &stylesheets, &num);
- for (i = 0; i < num; i++)
+ if (!strcmp(s, "auto"))
{
- (*m) = nmem_malloc(se->session_nmem, sizeof(**m));
- (*m)->next = 0;
- if (!((*m)->stylesheet = conf_load_stylesheet(stylesheets[i])))
+ const char *request_syntax = session_setting_oneval(
+ sdb, PZ_REQUESTSYNTAX);
+ if (request_syntax)
{
- yaz_log(YLOG_FATAL, "Unable to load stylesheet: %s",
- stylesheets[i]);
- return -1;
+ char *cp;
+ yaz_snprintf(auto_stylesheet, sizeof(auto_stylesheet),
+ "%s.xsl", request_syntax);
+ for (cp = auto_stylesheet; *cp; cp++)
+ {
+ /* deliberately only consider ASCII */
+ if (*cp > 32 && *cp < 127)
+ *cp = tolower(*cp);
+ }
+ s = auto_stylesheet;
+ }
+ else
+ {
+ yaz_log(YLOG_WARN, "No pz:requestsyntax for auto stylesheet");
}
- m = &(*m)->next;
}
+ sdb->map = normalize_record_create(se->service, s);
}
- if (!sdb->map)
- yaz_log(YLOG_WARN, "No Normalization stylesheet for target %s",
- sdb->database->url);
return 0;
}
"No settings associated with %s", sdb->database->url);
return -1;
}
- if (sdb->settings[PZ_NATIVESYNTAX] && !sdb->yaz_marc)
- {
- if (prepare_yazmarc(sdb) < 0)
- return -1;
- }
if (sdb->settings[PZ_XSLT] && !sdb->map)
{
if (prepare_map(se, sdb) < 0)
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)
+{
+ struct session_watchentry *ent = data;
-void session_set_watch(struct session *s, int what,
- session_watchfun fun, void *data)
+ ent->fun = 0;
+ ent->data = 0;
+ ent->obs = 0;
+}
+
+// set watch. Returns 0=OK, -1 if watch is already set
+int session_set_watch(struct session *s, int what,
+ session_watchfun fun, void *data,
+ struct http_channel *chan)
{
+ if (s->watchlist[what].fun)
+ return -1;
s->watchlist[what].fun = fun;
s->watchlist[what].data = data;
+ s->watchlist[what].obs = http_add_observer(chan, &s->watchlist[what],
+ session_watch_cancel);
+ return 0;
}
void session_alert_watch(struct session *s, int what)
{
- if (!s->watchlist[what].fun)
- return;
- (*s->watchlist[what].fun)(s->watchlist[what].data);
- s->watchlist[what].fun = 0;
- s->watchlist[what].data = 0;
+ if (s->watchlist[what].fun)
+ {
+ /* our watch is no longer associated with http_channel */
+ void *data;
+ session_watchfun fun;
+
+ http_remove_observer(s->watchlist[what].obs);
+ fun = s->watchlist[what].fun;
+ data = s->watchlist[what].data;
+
+ /* reset watch before fun is invoked - in case fun wants to set
+ it again */
+ s->watchlist[what].fun = 0;
+ s->watchlist[what].data = 0;
+ s->watchlist[what].obs = 0;
+
+ fun(data);
+ }
}
//callback for grep_databases
int subnum;
int subi;
struct database_criterion *new = nmem_malloc(m, sizeof(*new));
- char *eq = strchr(values[i], '=');
+ char *eq;
+ if ((eq = strchr(values[i], '=')))
+ new->type = PAZPAR2_STRING_MATCH;
+ if ((eq = strchr(values[i], '~')))
+ new->type = PAZPAR2_SUBSTRING_MATCH;
if (!eq)
{
- yaz_log(YLOG_WARN, "Missing equal-sign in filter");
+ yaz_log(YLOG_WARN, "Missing equal-signi/tilde in filter");
return 0;
}
*(eq++) = '\0';
return res;
}
-char *search(struct session *se, char *query, char *filter)
+enum pazpar2_error_code search(struct session *se,
+ const char *query, const char *filter,
+ const char **addinfo)
{
int live_channels = 0;
+ int no_working = 0;
+ int no_failed = 0;
struct client *cl;
struct database_criterion *criteria;
yaz_log(YLOG_DEBUG, "Search");
+ *addinfo = 0;
nmem_reset(se->nmem);
+ se->relevance = 0;
+ se->total_records = se->total_hits = se->total_merged = 0;
+ se->reclist = 0;
+ se->num_termlists = 0;
criteria = parse_filter(se->nmem, filter);
- se->requestid++;
live_channels = select_targets(se, criteria);
if (live_channels)
{
- int maxrecs = live_channels * global_parameters.toget;
- se->num_termlists = 0;
+ int maxrecs = live_channels * global_parameters.toget; // This is buggy!!!
se->reclist = reclist_create(se->nmem, maxrecs);
- // This will be initialized in send_search()
- se->total_records = se->total_hits = se->total_merged = 0;
se->expected_maxrecs = maxrecs;
}
else
- return "NOTARGETS";
-
- se->relevance = 0;
+ return PAZPAR2_NO_TARGETS;
for (cl = se->clients; cl; cl = client_next_in_session(cl))
{
if (prepare_session_database(se, client_get_database(cl)) < 0)
- return "CONFIG_ERROR";
- // Query must parse for all targets
- if (client_parse_query(cl, query) < 0)
- return "QUERY";
+ {
+ *addinfo = client_get_database(cl)->database->url;
+ return PAZPAR2_CONFIG_TARGET;
+ }
+ // Parse query for target
+ if (client_parse_query(cl, query) < 0)
+ no_failed++;
+ else
+ {
+ no_working++;
+ if (client_prep_connection(cl, se->service->z3950_operation_timeout,
+ se->service->z3950_session_timeout))
+ client_start_search(cl);
+ }
}
- for (cl = se->clients; cl; cl = client_next_in_session(cl))
+ // If no queries could be mapped, we signal an error
+ if (no_working == 0)
{
- client_prep_connection(cl);
+ *addinfo = "query";
+ return PAZPAR2_MALFORMED_PARAMETER_VALUE;
}
-
- return 0;
+ return PAZPAR2_NO_ERROR;
}
// Creates a new session_database object for a database
static void session_init_databases_fun(void *context, struct database *db)
{
struct session *se = (struct session *) context;
+ struct conf_service *service = se->service;
struct session_database *new = nmem_malloc(se->session_nmem, sizeof(*new));
- int num = settings_num();
+ int num = settings_num(service);
int i;
new->database = db;
- new->yaz_marc = 0;
- new->pct = pp2_charset_create();
+
new->map = 0;
new->settings
= nmem_malloc(se->session_nmem, sizeof(struct settings *) * num);
// Doesn't free memory associated with sdb -- nmem takes care of that
static void session_database_destroy(struct session_database *sdb)
{
- struct database_retrievalmap *m;
-
- for (m = sdb->map; m; m = m->next)
- xsltFreeStylesheet(m->stylesheet);
- if (sdb->yaz_marc)
- yaz_marc_destroy(sdb->yaz_marc);
- if (sdb->pct)
- pp2_charset_destroy(sdb->pct);
+ normalize_record_destroy(sdb->map);
+ sdb->map = 0;
}
// Initialize session_database list -- this represents this session's view
void session_init_databases(struct session *se)
{
se->databases = 0;
- grep_databases(se, 0, session_init_databases_fun);
+ predef_grep_databases(se, se->service, 0, session_init_databases_fun);
}
// Probably session_init_databases_fun should be refactored instead of
static struct session_database *load_session_database(struct session *se,
char *id)
{
- struct database *db = find_database(id, 0);
+ struct database *db = find_database(id, 0, se->service);
+
+ resolve_database(db);
session_init_databases_fun((void*) se, db);
// New sdb is head of se->databases list
char *value)
{
struct session_database *sdb = find_session_database(se, dbname);
+ struct conf_service *service = se->service;
struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
- int offset = settings_offset(setting);
+ int offset = settings_offset_cprefix(service, setting);
if (offset < 0)
{
yaz_log(YLOG_WARN, "Unknown setting %s", setting);
return;
}
+ // Jakub: This breaks the filter setting.
+ /*if (offset == PZ_ID)
+ {
+ yaz_log(YLOG_WARN, "No need to set pz:id setting. Ignoring");
+ return;
+ }*/
new->precedence = 0;
new->target = dbname;
new->name = setting;
// (happens when a search starts and client connections are prepared)
switch (offset)
{
- case PZ_NATIVESYNTAX:
- if (sdb->yaz_marc)
- {
- yaz_marc_destroy(sdb->yaz_marc);
- sdb->yaz_marc = 0;
- }
- break;
- case PZ_XSLT:
- if (sdb->map)
- {
- struct database_retrievalmap *m;
- // We don't worry about the map structure -- it's in nmem
- for (m = sdb->map; m; m = m->next)
- xsltFreeStylesheet(m->stylesheet);
- sdb->map = 0;
- }
- break;
+ case PZ_XSLT:
+ if (sdb->map)
+ {
+ normalize_record_destroy(sdb->map);
+ sdb->map = 0;
+ }
+ break;
}
}
{
struct session_database *sdb;
- yaz_log(YLOG_LOG, "Destroying session");
while (s->clients)
client_destroy(s->clients);
for (sdb = s->databases; sdb; sdb = sdb->next)
session_database_destroy(sdb);
nmem_destroy(s->nmem);
+ service_destroy(s->service);
wrbuf_destroy(s->wrbuf);
}
-struct session *new_session(NMEM nmem)
+struct session *new_session(NMEM nmem, struct conf_service *service)
{
int i;
struct session *session = nmem_malloc(nmem, sizeof(*session));
yaz_log(YLOG_DEBUG, "New Pazpar2 session");
-
+
+ session->service = service;
+ session->relevance = 0;
session->total_hits = 0;
session->total_records = 0;
+ session->number_of_warnings_unknown_elements = 0;
+ session->number_of_warnings_unknown_metadata = 0;
session->num_termlists = 0;
session->reclist = 0;
- session->requestid = -1;
session->clients = 0;
session->expected_maxrecs = 0;
session->session_nmem = nmem;
session->nmem = nmem_create();
session->wrbuf = wrbuf_alloc();
- session_init_databases(session);
+ session->databases = 0;
for (i = 0; i <= SESSION_WATCH_MAX; i++)
{
session->watchlist[i].data = 0;
session->watchlist[i].fun = 0;
}
-
return session;
}
-struct hitsbytarget *hitsbytarget(struct session *se, int *count)
+struct hitsbytarget *hitsbytarget(struct session *se, int *count, NMEM nmem)
{
- static struct hitsbytarget res[1000]; // FIXME MM
+ struct hitsbytarget *res = 0;
struct client *cl;
+ size_t sz = 0;
+
+ for (cl = se->clients; cl; cl = client_next_in_session(cl))
+ sz++;
+ res = nmem_malloc(nmem, sizeof(*res) * sz);
*count = 0;
for (cl = se->clients; cl; cl = client_next_in_session(cl))
{
- char *name = session_setting_oneval(client_get_database(cl), PZ_NAME);
+ const char *name = session_setting_oneval(client_get_database(cl),
+ PZ_NAME);
res[*count].id = client_get_database(cl)->database->url;
res[*count].name = *name ? name : "Unknown";
res[*count].connected = client_get_connection(cl) ? 1 : 0;
(*count)++;
}
-
return res;
}
}
#endif
-struct record_cluster *show_single(struct session *s, int id)
+struct record_cluster *show_single(struct session *s, const char *id,
+ struct record_cluster **prev_r,
+ struct record_cluster **next_r)
{
struct record_cluster *r;
reclist_rewind(s->reclist);
+ *prev_r = 0;
+ *next_r = 0;
while ((r = reclist_read_record(s->reclist)))
- if (r->recid == id)
+ {
+ if (!strcmp(r->recid, id))
+ {
+ *next_r = reclist_read_record(s->reclist);
return r;
+ }
+ *prev_r = r;
+ }
return 0;
}
NMEM nmem_show)
{
struct record_cluster **recs = nmem_malloc(nmem_show, *num
- * sizeof(struct record_cluster *));
+ * sizeof(struct record_cluster *));
struct reclist_sortparms *spp;
int i;
#if USE_TIMING
yaz_timing_t t = yaz_timing_create();
#endif
- for (spp = sp; spp; spp = spp->next)
- if (spp->type == Metadata_sortkey_relevance)
- {
- relevance_prepare_read(s->relevance, s->reclist);
- break;
- }
- reclist_sort(s->reclist, sp);
-
- *total = s->reclist->num_records;
- *sumhits = s->total_hits;
-
- for (i = 0; i < start; i++)
- if (!reclist_read_record(s->reclist))
- {
- *num = 0;
- recs = 0;
- break;
- }
-
- for (i = 0; i < *num; i++)
+ if (!s->relevance)
+ {
+ *num = 0;
+ *total = 0;
+ *sumhits = 0;
+ recs = 0;
+ }
+ else
{
- struct record_cluster *r = reclist_read_record(s->reclist);
- if (!r)
+ for (spp = sp; spp; spp = spp->next)
+ if (spp->type == Metadata_sortkey_relevance)
+ {
+ relevance_prepare_read(s->relevance, s->reclist);
+ break;
+ }
+ reclist_sort(s->reclist, sp);
+
+ *total = s->reclist->num_records;
+ *sumhits = s->total_hits;
+
+ for (i = 0; i < start; i++)
+ if (!reclist_read_record(s->reclist))
+ {
+ *num = 0;
+ recs = 0;
+ break;
+ }
+
+ for (i = 0; i < *num; i++)
{
- *num = i;
- break;
+ struct record_cluster *r = reclist_read_record(s->reclist);
+ if (!r)
+ {
+ *num = i;
+ break;
+ }
+ recs[i] = r;
}
- recs[i] = r;
}
#if USE_TIMING
yaz_timing_stop(t);
stat->num_no_connection++;
switch (client_get_state(cl))
{
- case Client_Connecting: stat->num_connecting++; break;
- case Client_Initializing: stat->num_initializing++; break;
- case Client_Searching: stat->num_searching++; break;
- case Client_Presenting: stat->num_presenting++; break;
- case Client_Idle: stat->num_idle++; break;
- case Client_Failed: stat->num_failed++; break;
- case Client_Error: stat->num_error++; break;
- default: break;
+ case Client_Connecting: stat->num_connecting++; break;
+ case Client_Working: stat->num_working++; break;
+ case Client_Idle: stat->num_idle++; break;
+ case Client_Failed: stat->num_failed++; break;
+ case Client_Error: stat->num_error++; break;
+ default: break;
}
count++;
}
stat->num_clients = count;
}
-void start_http_listener(void)
+
+// Master list of connections we're handling events to
+static IOCHAN channel_list = 0; /* thread pr */
+
+void pazpar2_add_channel(IOCHAN chan)
+{
+ chan->next = channel_list;
+ channel_list = chan;
+}
+
+void pazpar2_event_loop()
{
- char hp[128] = "";
- struct conf_server *ser = global_parameters.server;
+ event_loop(&channel_list);
+}
- if (*global_parameters.listener_override)
- strcpy(hp, global_parameters.listener_override);
+static struct record_metadata *record_metadata_init(
+ NMEM nmem, char *value, enum conf_metadata_type type)
+{
+ struct record_metadata *rec_md = record_metadata_create(nmem);
+ if (type == Metadata_type_generic)
+ {
+ char * p = value;
+ p = normalize7bit_generic(p, " ,/.:([");
+
+ rec_md->data.text.disp = nmem_strdup(nmem, p);
+ rec_md->data.text.sort = 0;
+ }
+ else if (type == Metadata_type_year || type == Metadata_type_date)
+ {
+ int first, last;
+ int longdate = 0;
+
+ if (type == Metadata_type_date)
+ longdate = 1;
+ if (extract7bit_dates((char *) value, &first, &last, longdate) < 0)
+ return 0;
+
+ rec_md->data.number.min = first;
+ rec_md->data.number.max = last;
+ }
else
+ return 0;
+ return rec_md;
+}
+
+static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
+ struct conf_service *service, WRBUF norm_wr)
+{
+ xmlNode *n;
+ int no_found = 0;
+ for (n = root->children; n; n = n->next)
{
- strcpy(hp, ser->host ? ser->host : "");
- if (ser->port)
+ if (n->type != XML_ELEMENT_NODE)
+ continue;
+ if (!strcmp((const char *) n->name, "metadata"))
{
- if (*hp)
- strcat(hp, ":");
- sprintf(hp + strlen(hp), "%d", ser->port);
+ xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
+ if (!strcmp(name, (const char *) type))
+ {
+ xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
+ if (value)
+ {
+ const char *norm_str;
+ pp2_relevance_token_t prt =
+ pp2_relevance_tokenize(
+ service->mergekey_pct,
+ (const char *) value);
+
+ wrbuf_puts(norm_wr, name);
+ wrbuf_puts(norm_wr, "=");
+ while ((norm_str =
+ pp2_relevance_token_next(prt)))
+ {
+ if (*norm_str)
+ {
+ if (wrbuf_len(norm_wr))
+ wrbuf_puts(norm_wr, " ");
+ wrbuf_puts(norm_wr, norm_str);
+ }
+ }
+ xmlFree(value);
+ pp2_relevance_token_destroy(prt);
+ no_found++;
+ }
+ }
+ xmlFree(type);
}
}
- http_init(hp);
+ return no_found;
}
-void start_proxy(void)
+static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
+ struct conf_service *service, NMEM nmem)
{
- char hp[128] = "";
- struct conf_server *ser = global_parameters.server;
+ char *mergekey_norm = 0;
+ xmlNode *root = xmlDocGetRootElement(doc);
+ WRBUF norm_wr = wrbuf_alloc();
- if (*global_parameters.proxy_override)
- strcpy(hp, global_parameters.proxy_override);
- else if (ser->proxy_host || ser->proxy_port)
+ /* consider mergekey from XSL first */
+ xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
+ if (mergekey)
{
- strcpy(hp, ser->proxy_host ? ser->proxy_host : "");
- if (ser->proxy_port)
+ const char *norm_str;
+ pp2_relevance_token_t prt =
+ pp2_relevance_tokenize(
+ service->mergekey_pct,
+ (const char *) mergekey);
+
+ while ((norm_str = pp2_relevance_token_next(prt)))
{
- if (*hp)
- strcat(hp, ":");
- sprintf(hp + strlen(hp), "%d", ser->proxy_port);
+ if (*norm_str)
+ {
+ if (wrbuf_len(norm_wr))
+ wrbuf_puts(norm_wr, " ");
+ wrbuf_puts(norm_wr, norm_str);
+ }
}
+ pp2_relevance_token_destroy(prt);
+ xmlFree(mergekey);
}
else
- return;
+ {
+ /* no mergekey defined in XSL. Look for mergekey metadata instead */
+ int field_id;
+ for (field_id = 0; field_id < service->num_metadata; field_id++)
+ {
+ struct conf_metadata *ser_md = &service->metadata[field_id];
+ if (ser_md->mergekey != Metadata_mergekey_no)
+ {
+ int r = get_mergekey_from_doc(doc, root, ser_md->name,
+ service, norm_wr);
+ if (r == 0 && ser_md->mergekey == Metadata_mergekey_required)
+ {
+ /* no mergekey on this one and it is required..
+ Generate unique key instead */
+ wrbuf_rewind(norm_wr);
+ break;
+ }
+ }
+ }
+ }
- http_set_proxyaddr(hp, ser->myurl ? ser->myurl : "");
+ /* generate unique key if none is not generated already or is empty */
+ if (wrbuf_len(norm_wr) == 0)
+ {
+ wrbuf_printf(norm_wr, "%s-%d",
+ client_get_database(cl)->database->url, record_no);
+ }
+ if (wrbuf_len(norm_wr) > 0)
+ mergekey_norm = nmem_strdup(nmem, wrbuf_cstr(norm_wr));
+ wrbuf_destroy(norm_wr);
+ return mergekey_norm;
}
-void start_zproxy(void)
+/** \brief see if metadata for pz:recordfilter exists
+ \param root xml root element of normalized record
+ \param sdb session database for client
+ \retval 0 if there is no metadata for pz:recordfilter
+ \retval 1 if there is metadata for pz:recordfilter
+
+ If there is no pz:recordfilter defined, this function returns 1
+ as well.
+*/
+
+static int check_record_filter(xmlNode *root, struct session_database *sdb)
{
- struct conf_server *ser = global_parameters.server;
+ int match = 0;
+ xmlNode *n;
+ const char *s;
+ s = session_setting_oneval(sdb, PZ_RECORDFILTER);
- if (*global_parameters.zproxy_override){
- yaz_log(YLOG_LOG, "Z39.50 proxy %s",
- global_parameters.zproxy_override);
- return;
- }
+ if (!s || !*s)
+ return 1;
- else if (ser->zproxy_host || ser->zproxy_port)
+ for (n = root->children; n; n = n->next)
{
- char hp[128] = "";
-
- strcpy(hp, ser->zproxy_host ? ser->zproxy_host : "");
- if (ser->zproxy_port)
+ if (n->type != XML_ELEMENT_NODE)
+ continue;
+ if (!strcmp((const char *) n->name, "metadata"))
{
- if (*hp)
- strcat(hp, ":");
- else
- strcat(hp, "@:");
-
- sprintf(hp + strlen(hp), "%d", ser->zproxy_port);
+ xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
+ if (type)
+ {
+ size_t len;
+ const char *eq = strchr(s, '=');
+ if (eq)
+ len = eq - s;
+ else
+ len = strlen(s);
+ if (len == strlen((const char *)type) &&
+ !memcmp((const char *) type, s, len))
+ {
+ xmlChar *value = xmlNodeGetContent(n);
+ if (value && *value)
+ {
+ if (!eq || strstr((const char *) value, eq+1))
+ match = 1;
+ }
+ xmlFree(value);
+ }
+ xmlFree(type);
+ }
}
- strcpy(global_parameters.zproxy_override, hp);
- yaz_log(YLOG_LOG, "Z39.50 proxy %s",
- global_parameters.zproxy_override);
-
}
- else
- return;
+ return match;
}
-// Master list of connections we're handling events to
-static IOCHAN channel_list = 0;
-void pazpar2_add_channel(IOCHAN chan)
-{
- chan->next = channel_list;
- channel_list = chan;
-}
-void pazpar2_event_loop()
-{
- event_loop(&channel_list);
-}
-
-struct record *ingest_record(struct client *cl, Z_External *rec,
+/** \brief ingest XML record
+ \param cl client holds the result set for record
+ \param rec record buffer (0 terminated)
+ \param record_no record position (1, 2, ..)
+ \returns resulting record or NULL on failure
+*/
+struct record *ingest_record(struct client *cl, const char *rec,
int record_no)
{
- xmlDoc *xdoc = normalize_record(client_get_database(cl), rec);
+ struct session_database *sdb = client_get_database(cl);
+ struct session *se = client_get_session(cl);
+ xmlDoc *xdoc = normalize_record(sdb, se, rec);
xmlNode *root, *n;
struct record *record;
struct record_cluster *cluster;
- struct session *se = client_get_session(cl);
- xmlChar *mergekey, *mergekey_norm;
+ const char *mergekey_norm;
xmlChar *type = 0;
xmlChar *value = 0;
- struct conf_service *service = global_parameters.server->service;
+ struct conf_service *service = se->service;
if (!xdoc)
return 0;
root = xmlDocGetRootElement(xdoc);
- if (!(mergekey = xmlGetProp(root, (xmlChar *) "mergekey")))
+
+ if (!check_record_filter(root, sdb))
{
- yaz_log(YLOG_WARN, "No mergekey found in record");
+ yaz_log(YLOG_WARN, "Filtered out record no %d from %s", record_no,
+ sdb->database->url);
xmlFreeDoc(xdoc);
return 0;
}
-#if 0
- record = nmem_malloc(se->nmem, sizeof(struct record));
- record->next = 0;
- record->client = cl;
- record->metadata = nmem_malloc(se->nmem,
- sizeof(struct record_metadata*) * service->num_metadata);
- memset(record->metadata, 0,
- sizeof(struct record_metadata*) * service->num_metadata);
-
-#else
+ mergekey_norm = get_mergekey(xdoc, cl, record_no, service, se->nmem);
+ if (!mergekey_norm)
+ {
+ yaz_log(YLOG_WARN, "Got no mergekey");
+ xmlFreeDoc(xdoc);
+ return 0;
+ }
record = record_create(se->nmem,
- service->num_metadata, service->num_sortkeys);
- record_assign_client(record, cl);
-#endif
-
- mergekey_norm = (xmlChar *) nmem_strdup(se->nmem, (char*) mergekey);
- xmlFree(mergekey);
- normalize7bit_mergekey((char *) mergekey_norm, 0);
+ service->num_metadata, service->num_sortkeys, cl,
+ record_no);
cluster = reclist_insert(se->reclist,
- global_parameters.server->service,
+ service,
record, (char *) mergekey_norm,
&se->total_merged);
if (global_parameters.dump_records)
- yaz_log(YLOG_LOG, "Cluster id %d from %s (#%d)", cluster->recid,
- client_get_database(cl)->database->url, record_no);
+ yaz_log(YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
+ sdb->database->url, record_no);
if (!cluster)
{
/* no room for record */
return 0;
}
relevance_newrec(se->relevance, cluster);
-
-
+
// now parsing XML record and adding data to cluster or record metadata
for (n = root->children; n; n = n->next)
{
+ pp2_relevance_token_t prt;
if (type)
xmlFree(type);
if (value)
xmlFree(value);
type = value = 0;
-
+
if (n->type != XML_ELEMENT_NODE)
continue;
if (!strcmp((const char *) n->name, "metadata"))
struct record_metadata *rec_md = 0;
int md_field_id = -1;
int sk_field_id = -1;
- int first, last;
-
+
type = xmlGetProp(n, (xmlChar *) "type");
- value = xmlNodeListGetString(xdoc, n->children, 0);
-
- if (!type || !value)
- continue;
-
-#if 0
- // First, find out what field we're looking at
- for (md_field_id = 0; md_field_id < service->num_metadata;
- md_field_id++)
- if (!strcmp((const char *) type,
- service->metadata[md_field_id].name))
- {
- ser_md = &service->metadata[md_field_id];
- if (ser_md->sortkey_offset >= 0){
- sk_field_id = ser_md->sortkey_offset;
- ser_sk = &service->sortkeys[sk_field_id];
- }
- break;
- }
-
- if (!ser_md)
- {
- yaz_log(YLOG_WARN,
- "Ignoring unknown metadata element: %s", type);
+ value = xmlNodeListGetString(xdoc, n->children, 1);
+
+ if (!type || !value || !*value)
continue;
- }
-
-#else
+
md_field_id
= conf_service_metadata_field_id(service, (const char *) type);
if (md_field_id < 0)
{
- yaz_log(YLOG_WARN,
- "Ignoring unknown metadata element: %s", type);
+ if (se->number_of_warnings_unknown_metadata == 0)
+ {
+ yaz_log(YLOG_WARN,
+ "Ignoring unknown metadata element: %s", type);
+ }
+ se->number_of_warnings_unknown_metadata++;
continue;
}
-
+
ser_md = &service->metadata[md_field_id];
-
+
if (ser_md->sortkey_offset >= 0){
sk_field_id = ser_md->sortkey_offset;
ser_sk = &service->sortkeys[sk_field_id];
}
-#endif
-
- // Find out where we are putting it - based on merge or not
- if (ser_md->merge == Metadata_merge_no)
- wheretoput = &record->metadata[md_field_id];
- else
- wheretoput = &cluster->metadata[md_field_id];
-
- // create new record_metadata
-#if 0
- rec_md = nmem_malloc(se->nmem, sizeof(struct record_metadata));
- rec_md->next = 0;
-#else
- rec_md = record_metadata_create(se->nmem);
-#endif
-
- // and polulate with data:
- // type based charmapping decisions follow here
- if (ser_md->type == Metadata_type_generic)
- {
-
-#if 0
- char *p, *pe;
- for (p = (char *) value; *p && isspace(*p); p++)
- ;
- for (pe = p + strlen(p) - 1;
- pe > p && strchr(" ,/.:([", *pe); pe--)
- *pe = '\0';
-#else
- char * p = (char *) value;
- p = normalize7bit_generic(p, " ,/.:([");
-#endif
-
- rec_md->data.text = nmem_strdup(se->nmem, p);
-
- }
- else if (ser_md->type == Metadata_type_year)
- {
- if (extract7bit_years((char *) value, &first, &last) < 0)
- continue;
- }
- else
- {
- yaz_log(YLOG_WARN,
- "Unknown type in metadata element %s", type);
- continue;
- }
-#if 0 // this test does not belong here.
- // the condition is enforced in the constructor
- // inside conf_metadata_assign()
- // and will _never_ occur
- if (ser_md->type == Metadata_type_year
- && ser_md->merge != Metadata_merge_range)
+ // non-merged metadata
+ rec_md = record_metadata_init(se->nmem, (char *) value,
+ ser_md->type);
+ if (!rec_md)
{
- yaz_log(YLOG_WARN, "Only range merging supported for years");
+ yaz_log(YLOG_WARN, "bad metadata data '%s' for element '%s'",
+ value, type);
continue;
}
-# endif
+ wheretoput = &record->metadata[md_field_id];
+ while (*wheretoput)
+ wheretoput = &(*wheretoput)->next;
+ *wheretoput = rec_md;
+ // merged metadata
+ rec_md = record_metadata_init(se->nmem, (char *) value,
+ ser_md->type);
+ wheretoput = &cluster->metadata[md_field_id];
// and polulate with data:
// assign cluster or record based on merge action
{
struct record_metadata *mnode;
for (mnode = *wheretoput; mnode; mnode = mnode->next)
- if (!strcmp((const char *) mnode->data.text,
- rec_md->data.text))
+ if (!strcmp((const char *) mnode->data.text.disp,
+ rec_md->data.text.disp))
break;
if (!mnode)
{
else if (ser_md->merge == Metadata_merge_longest)
{
if (!*wheretoput
- || strlen(rec_md->data.text)
- > strlen((*wheretoput)->data.text))
+ || strlen(rec_md->data.text.disp)
+ > strlen((*wheretoput)->data.text.disp))
{
*wheretoput = rec_md;
if (ser_sk)
{
- char *s = nmem_strdup(se->nmem, rec_md->data.text);
+ const char *sort_str = 0;
+ int skip_article =
+ ser_sk->type == Metadata_sortkey_skiparticle;
+
if (!cluster->sortkeys[sk_field_id])
cluster->sortkeys[sk_field_id] =
nmem_malloc(se->nmem,
sizeof(union data_types));
- normalize7bit_mergekey(s,
- (ser_sk->type == Metadata_sortkey_skiparticle));
- cluster->sortkeys[sk_field_id]->text = s;
+
+ prt = pp2_relevance_tokenize(
+ service->sort_pct,
+ rec_md->data.text.disp);
+
+ pp2_relevance_token_next(prt);
+
+ sort_str = pp2_get_sort(prt, skip_article);
+
+ cluster->sortkeys[sk_field_id]->text.disp =
+ rec_md->data.text.disp;
+ if (!sort_str)
+ {
+ sort_str = rec_md->data.text.disp;
+ yaz_log(YLOG_WARN,
+ "Could not make sortkey. Bug #1858");
+ }
+ cluster->sortkeys[sk_field_id]->text.sort =
+ nmem_strdup(se->nmem, sort_str);
+#if 0
+ yaz_log(YLOG_LOG, "text disp=%s",
+ cluster->sortkeys[sk_field_id]->text.disp);
+ yaz_log(YLOG_LOG, "text sort=%s",
+ cluster->sortkeys[sk_field_id]->text.sort);
+#endif
+ pp2_relevance_token_destroy(prt);
}
}
}
- else if (ser_md->merge == Metadata_merge_all
- || ser_md->merge == Metadata_merge_no)
+ else if (ser_md->merge == Metadata_merge_all)
{
rec_md->next = *wheretoput;
*wheretoput = rec_md;
}
else if (ser_md->merge == Metadata_merge_range)
{
-
-#if 0 // this assert does not belong here.
- // the condition is enforced in the constructor
- // inside conf_metadata_assign()
- // and will _never_ occur
- assert(ser_md->type == Metadata_type_year);
-#endif
-
if (!*wheretoput)
{
*wheretoput = rec_md;
- (*wheretoput)->data.number.min = first;
- (*wheretoput)->data.number.max = last;
if (ser_sk)
cluster->sortkeys[sk_field_id]
= &rec_md->data;
}
else
{
- if (first < (*wheretoput)->data.number.min)
- (*wheretoput)->data.number.min = first;
- if (last > (*wheretoput)->data.number.max)
- (*wheretoput)->data.number.max = last;
- }
-#ifdef GAGA
- if (ser_sk)
- {
- union data_types *sdata
- = cluster->sortkeys[sk_field_id];
- yaz_log(YLOG_LOG, "SK range: %d-%d",
- sdata->number.min, sdata->number.max);
+ int this_min = rec_md->data.number.min;
+ int this_max = rec_md->data.number.max;
+ if (this_min < (*wheretoput)->data.number.min)
+ (*wheretoput)->data.number.min = this_min;
+ if (this_max > (*wheretoput)->data.number.max)
+ (*wheretoput)->data.number.max = this_max;
}
-#endif
}
-#if 0 // this else is only entered when Metadata_merge_no
- // but I believe then we should _not_ pollute with log messages
- else
-
- yaz_log(YLOG_WARN,
- "Don't know how to merge on element name %s",
- ser_md->name);
-#endif
-
// ranking of _all_ fields enabled ...
if (ser_md->rank)
if (ser_md->type == Metadata_type_year)
{
char year[64];
- sprintf(year, "%d", last);
+ sprintf(year, "%d", rec_md->data.number.max);
add_facet(se, (char *) type, year);
- if (first != last)
+ if (rec_md->data.number.max != rec_md->data.number.min)
{
- sprintf(year, "%d", first);
+ sprintf(year, "%d", rec_md->data.number.min);
add_facet(se, (char *) type, year);
}
}
type = value = 0;
}
else
- yaz_log(YLOG_WARN,
- "Unexpected element %s in internal record", n->name);
+ {
+ if (se->number_of_warnings_unknown_elements == 0)
+ yaz_log(YLOG_WARN,
+ "Unexpected element in internal record: %s", n->name);
+ se->number_of_warnings_unknown_elements++;
+ }
}
if (type)
xmlFree(type);
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
+
projects / pazpar2-moved-to-github.git / blobdiff