-/* $Id: database.c,v 1.5 2007-03-29 13:44:38 quinn Exp $ */
+/* $Id: database.c,v 1.21 2007-04-20 15:36:48 quinn Exp $
+ Copyright (c) 2006-2007, Index Data.
+
+This file is part of Pazpar2.
+
+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
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+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.
+ */
#include <libxml/parser.h>
#include <libxml/tree.h>
#include "pazpar2.h"
#include "config.h"
+#include "settings.h"
#include "http.h"
#include "zeerex.h"
static struct database *databases = 0; // The databases we know about
static NMEM nmem = 0;
-// This needs to be extended with selection criteria
-static struct conf_retrievalprofile *database_retrievalprofile(const char *id)
-{
- if (!config)
- {
- yaz_log(YLOG_FATAL, "Must load configuration (-f)");
- exit(1);
- }
- if (!config->retrievalprofiles)
- {
- yaz_log(YLOG_FATAL, "No retrieval profiles defined");
- }
- return config->retrievalprofiles;
-}
-
-static struct conf_queryprofile *database_queryprofile(const char *id)
-{
- return (struct conf_queryprofile*) 1;
-}
-
static xmlDoc *get_explain_xml(const char *id)
{
struct stat st;
static struct database *load_database(const char *id)
{
- xmlDoc *doc = get_explain_xml(id);
- struct zr_explain *explain;
- struct conf_retrievalprofile *retrieval;
- struct conf_queryprofile *query;
+ xmlDoc *doc = 0;
+ struct zr_explain *explain = 0;
struct database *db;
struct host *host;
char hostport[256];
char *dbname;
+ yaz_log(YLOG_LOG, "New database: %s", id);
if (!nmem)
nmem = nmem_create();
- if (doc)
+
+ if (config && config->targetprofiles
+ && (doc = get_explain_xml(id)))
{
explain = zr_read_xml(nmem, xmlDocGetRootElement(doc));
if (!explain)
return 0;
}
- if (!(retrieval = database_retrievalprofile(id)) ||
- !(query = database_queryprofile(id)))
- {
- xmlFree(doc);
- return 0;
- }
+
if (strlen(id) > 255)
return 0;
strcpy(hostport, id);
memset(db, 0, sizeof(*db));
db->host = host;
db->url = nmem_strdup(nmem, id);
- db->name = 0;
db->databases = xmalloc(2 * sizeof(char *));
db->databases[0] = nmem_strdup(nmem, dbname);
db->databases[1] = 0;
db->errors = 0;
db->explain = explain;
- db->qprofile = query;
- db->rprofile = retrieval;
db->settings = 0;
db->next = databases;
+ db->map = 0;
databases = db;
return db;
return load_database(id);
}
-static int match_zurl(const char *zurl, const char *pattern)
+// This whole session_grep database thing should be moved to pazpar2.c
+
+int match_zurl(const char *zurl, const char *pattern)
{
if (!strcmp(pattern, "*"))
return 1;
}
// This will be generalized at some point
-static int match_criterion(struct database *db, struct database_criterion *c)
+static int match_criterion(struct setting **settings, struct database_criterion *c)
{
- if (!strcmp(c->name, "id"))
+ int offset = settings_offset(c->name);
+ struct database_criterion_value *v;
+
+ if (offset < 0)
{
- struct database_criterion_value *v;
- for (v = c->values; v; v = v->next)
- if (match_zurl(db->url, v->value))
- return 1;
+ yaz_log(YLOG_WARN, "Criterion not found: %s", c->name);
+ return 0;
+ }
+ if (!settings[offset])
return 0;
+ for (v = c->values; v; v = v->next)
+ {
+ if (offset == PZ_ID)
+ {
+ if (match_zurl(settings[offset]->value, v->value))
+ break;
+ }
+ else
+ {
+ if (!strcmp(settings[offset]->value, v->value))
+ break;
+ }
}
+ if (v)
+ return 1;
else
return 0;
}
-int database_match_criteria(struct database *db, struct database_criterion *cl)
+int database_match_criteria(struct setting **settings, struct database_criterion *cl)
{
for (; cl; cl = cl->next)
- if (!match_criterion(db, cl))
+ if (!match_criterion(settings, cl))
break;
if (cl) // one of the criteria failed to match -- skip this db
return 0;
// Cycles through databases, calling a handler function on the ones for
// which all criteria matched.
+int session_grep_databases(struct session *se, struct database_criterion *cl,
+ void (*fun)(void *context, struct session_database *db))
+{
+ struct session_database *p;
+ int i = 0;
+
+ for (p = se->databases; p; p = p->next)
+ {
+ if (p->settings && p->settings[PZ_ALLOW] && *p->settings[PZ_ALLOW]->value == '0')
+ continue;
+ if (database_match_criteria(p->settings, cl))
+ {
+ (*fun)(se, p);
+ i++;
+ }
+ }
+ return i;
+}
+
int grep_databases(void *context, struct database_criterion *cl,
void (*fun)(void *context, struct database *db))
{
struct database *p;
- int i;
+ int i = 0;
for (p = databases; p; p = p->next)
- {
- if (database_match_criteria(p, cl))
+ if (database_match_criteria(p->settings, cl))
{
(*fun)(context, p);
i++;
}
- }
return i;
}
+// Prepare XSLT stylesheets for record normalization
+static void prepare_map(void *ignore, struct database *db)
+{
+ struct setting *s;
+
+ if (!db->settings)
+ return;
+ for (s = db->settings[PZ_XSLT]; s; s = s->next)
+ {
+ char **stylesheets;
+ struct database_retrievalmap **m = &db->map;
+ int num, i;
+
+ nmem_strsplit(nmem, ",", s->value, &stylesheets, &num);
+ for (i = 0; i < num; i++)
+ {
+ (*m) = nmem_malloc(nmem, sizeof(**m));
+ (*m)->next = 0;
+ if (!((*m)->stylesheet = conf_load_stylesheet(stylesheets[i])))
+ {
+ yaz_log(YLOG_FATAL, "Unable to load stylesheet: %s",
+ stylesheets[i]);
+ exit(1);
+ }
+ m = &(*m)->next;
+ }
+ }
+ if (!db->map)
+ yaz_log(YLOG_WARN, "No Normalization stylesheet for target %s", db->url);
+}
+
+// Read settings for each database, and prepare support data structures
+void prepare_databases(void)
+{
+ grep_databases(0, 0, prepare_map);
+}
+
// This function will most likely vanish when a proper target profile mechanism is
// introduced.
void load_simpletargets(const char *fn)
if (!(db = find_database(url, 0)))
yaz_log(YLOG_WARN, "Unable to load database %s", url);
- if (name && db)
- db->name = nmem_strdup(nmem, name);
}
fclose(f);
}