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"
29 #include "relevance.h"
32 #include "pazpar2_config.h"
33 #include "parameters.h"
40 enum pazpar2_error_code {
44 PAZPAR2_MISSING_PARAMETER,
45 PAZPAR2_MALFORMED_PARAMETER_VALUE,
46 PAZPAR2_MALFORMED_PARAMETER_ENCODING,
47 PAZPAR2_MALFORMED_SETTING,
48 PAZPAR2_HITCOUNTS_FAILED,
49 PAZPAR2_RECORD_MISSING,
51 PAZPAR2_CONFIG_TARGET,
53 PAZPAR2_NOT_IMPLEMENTED,
58 // Represents a (virtual) database on a host
64 struct zr_explain *explain;
65 struct setting **settings;
66 struct database *next;
69 struct database_criterion_value {
71 struct database_criterion_value *next;
74 struct database_criterion {
76 struct database_criterion_value *values;
77 struct database_criterion *next;
80 // Normalization filter. Turns incoming record into internal representation
81 // Simple sequence of stylesheets run in series.
82 struct database_retrievalmap {
83 xsltStylesheet *stylesheet;
84 struct database_retrievalmap *next;
87 // Represents a database as viewed from one session, possibly with settings overriden
89 struct session_database
91 struct database *database;
92 struct setting **settings;
96 struct database_retrievalmap *map;
97 struct session_database *next;
102 #define SESSION_WATCH_SHOW 0
103 #define SESSION_WATCH_RECORD 1
104 #define SESSION_WATCH_MAX 1
106 #define SESSION_MAX_TERMLISTS 10
108 typedef void (*session_watchfun)(void *data);
110 struct named_termlist
113 struct termlist *termlist;
116 struct session_watchentry {
118 http_channel_observer_t obs;
119 session_watchfun fun;
124 struct conf_service *service; /* service in use for this session */
125 struct session_database *databases; // All databases, settings overriden
126 struct client *clients; // Clients connected for current search
127 NMEM session_nmem; // Nmem for session-permanent storage
128 NMEM nmem; // Nmem for each operation (i.e. search, result set, etc)
129 WRBUF wrbuf; // Wrbuf for scratch(i.e. search)
131 struct named_termlist termlists[SESSION_MAX_TERMLISTS];
132 struct relevance *relevance;
133 struct reclist *reclist;
134 struct session_watchentry watchlist[SESSION_WATCH_MAX + 1];
135 int expected_maxrecs;
139 int number_of_warnings_unknown_elements;
140 int number_of_warnings_unknown_metadata;
145 int num_no_connection;
155 struct hitsbytarget {
165 struct hitsbytarget *hitsbytarget(struct session *s, int *count, NMEM nmem);
166 int select_targets(struct session *se, struct database_criterion *crit);
167 struct session *new_session(NMEM nmem, struct conf_service *service);
168 void destroy_session(struct session *s);
169 void session_init_databases(struct session *s);
170 int load_targets(struct session *s, const char *fn);
171 void statistics(struct session *s, struct statistics *stat);
172 enum pazpar2_error_code search(struct session *s, char *query,
173 char *filter, const char **addinfo);
174 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp, int start,
175 int *num, int *total, int *sumhits, NMEM nmem_show);
176 struct record_cluster *show_single(struct session *s, const char *id,
177 struct record_cluster **prev_r,
178 struct record_cluster **next_r);
179 struct termlist_score **termlist(struct session *s, const char *name, int *num);
180 int session_set_watch(struct session *s, int what, session_watchfun fun, void *data, struct http_channel *c);
181 int session_active_clients(struct session *s);
182 void session_apply_setting(struct session *se, char *dbname, char *setting, char *value);
183 const char *session_setting_oneval(struct session_database *db, int offset);
185 int start_http_listener(struct conf_config *conf,
186 const char *listener_override,
187 const char *proxy_override);
188 void start_proxy(void);
190 void pazpar2_add_channel(IOCHAN c);
191 void pazpar2_event_loop(void);
193 int host_getaddrinfo(struct host *host);
195 xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
197 xmlDoc *record_to_xml(struct session_database *sdb, const char *rec);
199 struct record *ingest_record(struct client *cl, const char *rec,
201 void session_alert_watch(struct session *s, int what);
202 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num);
209 * c-file-style: "Stroustrup"
210 * indent-tabs-mode: nil
212 * vim: shiftwidth=4 tabstop=8 expandtab