1 /* This file is part of Pazpar2.
2 Copyright (C) 2006-2009 Index Data
4 Pazpar2 is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Pazpar2 is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include <yaz/comstack.h>
24 #include <yaz/pquery.h>
26 #include <yaz/yaz-ccl.h>
28 #include "termlists.h"
30 #include "pazpar2_config.h"
37 enum pazpar2_error_code {
41 PAZPAR2_MISSING_PARAMETER,
42 PAZPAR2_MALFORMED_PARAMETER_VALUE,
43 PAZPAR2_MALFORMED_PARAMETER_ENCODING,
44 PAZPAR2_MALFORMED_SETTING,
45 PAZPAR2_HITCOUNTS_FAILED,
46 PAZPAR2_RECORD_MISSING,
48 PAZPAR2_CONFIG_TARGET,
50 PAZPAR2_NOT_IMPLEMENTED,
55 // Represents a (virtual) database on a host
61 struct zr_explain *explain;
62 struct setting **settings;
63 struct database *next;
66 struct database_criterion_value {
68 struct database_criterion_value *next;
71 struct database_criterion {
73 struct database_criterion_value *values;
74 struct database_criterion *next;
77 // Normalization filter. Turns incoming record into internal representation
78 // Simple sequence of stylesheets run in series.
79 struct database_retrievalmap {
80 xsltStylesheet *stylesheet;
81 struct marcmap *marcmap;
82 struct database_retrievalmap *next;
85 // Represents a database as viewed from one session, possibly with settings overriden
87 struct session_database
89 struct database *database;
90 struct setting **settings;
94 struct database_retrievalmap *map;
95 struct session_database *next;
100 #define SESSION_WATCH_SHOW 0
101 #define SESSION_WATCH_RECORD 1
102 #define SESSION_WATCH_MAX 1
104 #define SESSION_MAX_TERMLISTS 10
106 typedef void (*session_watchfun)(void *data);
108 struct named_termlist
111 struct termlist *termlist;
114 struct session_watchentry {
116 http_channel_observer_t obs;
117 session_watchfun fun;
122 struct conf_service *service; /* service in use for this session */
123 struct session_database *databases; // All databases, settings overriden
124 struct client *clients; // Clients connected for current search
125 NMEM session_nmem; // Nmem for session-permanent storage
126 NMEM nmem; // Nmem for each operation (i.e. search, result set, etc)
127 WRBUF wrbuf; // Wrbuf for scratch(i.e. search)
129 struct named_termlist termlists[SESSION_MAX_TERMLISTS];
130 struct relevance *relevance;
131 struct reclist *reclist;
132 struct session_watchentry watchlist[SESSION_WATCH_MAX + 1];
133 int expected_maxrecs;
137 int number_of_warnings_unknown_elements;
138 int number_of_warnings_unknown_metadata;
143 int num_no_connection;
153 struct hitsbytarget {
163 struct hitsbytarget *hitsbytarget(struct session *s, int *count, NMEM nmem);
164 int select_targets(struct session *se, struct database_criterion *crit);
165 struct session *new_session(NMEM nmem, struct conf_service *service);
166 void destroy_session(struct session *s);
167 void session_init_databases(struct session *s);
168 int load_targets(struct session *s, const char *fn);
169 void statistics(struct session *s, struct statistics *stat);
170 enum pazpar2_error_code search(struct session *s, const char *query,
171 const char *filter, const char **addinfo);
172 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp, int start,
173 int *num, int *total, int *sumhits, NMEM nmem_show);
174 struct record_cluster *show_single(struct session *s, const char *id,
175 struct record_cluster **prev_r,
176 struct record_cluster **next_r);
177 struct termlist_score **termlist(struct session *s, const char *name, int *num);
178 int session_set_watch(struct session *s, int what, session_watchfun fun, void *data, struct http_channel *c);
179 int session_active_clients(struct session *s);
180 void session_apply_setting(struct session *se, char *dbname, char *setting, char *value);
181 const char *session_setting_oneval(struct session_database *db, int offset);
183 void pazpar2_add_channel(IOCHAN c);
184 void pazpar2_event_loop(void);
186 int host_getaddrinfo(struct host *host);
188 xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
190 xmlDoc *record_to_xml(struct session_database *sdb, const char *rec);
192 struct record *ingest_record(struct client *cl, const char *rec,
194 void session_alert_watch(struct session *s, int what);
195 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num);
202 * c-file-style: "Stroustrup"
203 * indent-tabs-mode: nil
205 * vim: shiftwidth=4 tabstop=8 expandtab