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 enum pazpar2_database_criterion_type {
57 PAZPAR2_SUBSTRING_MATCH
60 // Represents a (virtual) database on a host
66 struct zr_explain *explain;
67 struct setting **settings;
68 struct database *next;
71 struct database_criterion_value {
73 struct database_criterion_value *next;
76 struct database_criterion {
78 enum pazpar2_database_criterion_type type;
79 struct database_criterion_value *values;
80 struct database_criterion *next;
83 // Normalization filter. Turns incoming record into internal representation
84 // Simple sequence of stylesheets run in series.
85 struct database_retrievalmap {
86 xsltStylesheet *stylesheet;
87 struct marcmap *marcmap;
88 struct database_retrievalmap *next;
91 // Represents a database as viewed from one session, possibly with settings overriden
93 struct session_database
95 struct database *database;
96 struct setting **settings;
97 struct database_retrievalmap *map;
98 struct session_database *next;
103 #define SESSION_WATCH_SHOW 0
104 #define SESSION_WATCH_RECORD 1
105 #define SESSION_WATCH_MAX 1
107 #define SESSION_MAX_TERMLISTS 10
109 typedef void (*session_watchfun)(void *data);
111 struct named_termlist
114 struct termlist *termlist;
117 struct session_watchentry {
119 http_channel_observer_t obs;
120 session_watchfun fun;
125 struct conf_service *service; /* service in use for this session */
126 struct session_database *databases; // All databases, settings overriden
127 struct client *clients; // Clients connected for current search
128 NMEM session_nmem; // Nmem for session-permanent storage
129 NMEM nmem; // Nmem for each operation (i.e. search, result set, etc)
130 WRBUF wrbuf; // Wrbuf for scratch(i.e. search)
132 struct named_termlist termlists[SESSION_MAX_TERMLISTS];
133 struct relevance *relevance;
134 struct reclist *reclist;
135 struct session_watchentry watchlist[SESSION_WATCH_MAX + 1];
136 int expected_maxrecs;
140 int number_of_warnings_unknown_elements;
141 int number_of_warnings_unknown_metadata;
146 int num_no_connection;
156 struct hitsbytarget {
166 struct hitsbytarget *hitsbytarget(struct session *s, int *count, NMEM nmem);
167 int select_targets(struct session *se, struct database_criterion *crit);
168 struct session *new_session(NMEM nmem, struct conf_service *service);
169 void destroy_session(struct session *s);
170 void session_init_databases(struct session *s);
171 int load_targets(struct session *s, const char *fn);
172 void statistics(struct session *s, struct statistics *stat);
173 enum pazpar2_error_code search(struct session *s, const char *query,
174 const char *filter, const char **addinfo);
175 struct record_cluster **show(struct session *s, struct reclist_sortparms *sp, int start,
176 int *num, int *total, int *sumhits, NMEM nmem_show);
177 struct record_cluster *show_single(struct session *s, const char *id,
178 struct record_cluster **prev_r,
179 struct record_cluster **next_r);
180 struct termlist_score **termlist(struct session *s, const char *name, int *num);
181 int session_set_watch(struct session *s, int what, session_watchfun fun, void *data, struct http_channel *c);
182 int session_active_clients(struct session *s);
183 void session_apply_setting(struct session *se, char *dbname, char *setting, char *value);
184 const char *session_setting_oneval(struct session_database *db, int offset);
186 void pazpar2_add_channel(IOCHAN c);
187 void pazpar2_event_loop(void);
189 int host_getaddrinfo(struct host *host);
191 xmlDoc *normalize_record(struct session_database *sdb, struct session *se,
193 xmlDoc *record_to_xml(struct session_database *sdb, const char *rec);
195 struct record *ingest_record(struct client *cl, const char *rec,
197 void session_alert_watch(struct session *s, int what);
198 void pull_terms(NMEM nmem, struct ccl_rpn_node *n, char **termlist, int *num);
205 * c-file-style: "Stroustrup"
206 * indent-tabs-mode: nil
208 * vim: shiftwidth=4 tabstop=8 expandtab