Merge branch 'master' into sru_2_0
[yaz-moved-to-github.git] / src / zoom-p.h
1 /* This file is part of the YAZ toolkit.
2  * Copyright (C) 1995-2013 Index Data.
3  * All rights reserved.
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  *     * Redistributions of source code must retain the above copyright
8  *       notice, this list of conditions and the following disclaimer.
9  *     * Redistributions in binary form must reproduce the above copyright
10  *       notice, this list of conditions and the following disclaimer in the
11  *       documentation and/or other materials provided with the distribution.
12  *     * Neither the name of Index Data nor the names of its contributors
13  *       may be used to endorse or promote products derived from this
14  *       software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19  * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 /**
28  * \file zoom-p.h
29  * \brief Internal header for ZOOM implementation
30  */
31 #include <yaz/proto.h>
32 #include <yaz/oid_db.h>
33 #include <yaz/comstack.h>
34 #include <yaz/wrbuf.h>
35 #include <yaz/zoom.h>
36 #include <yaz/srw.h>
37 #include <yaz/mutex.h>
38
39 #define SHPTR 1
40 #define ZOOM_RESULT_LISTS 0
41
42 typedef struct ZOOM_Event_p *ZOOM_Event;
43
44 typedef enum {
45     zoom_sru_error,
46     zoom_sru_soap,
47     zoom_sru_get,
48     zoom_sru_post,
49     zoom_sru_solr
50 } zoom_sru_mode;
51
52
53 typedef struct ZOOM_task_p *ZOOM_task;
54
55 #define STATE_IDLE 0
56 #define STATE_CONNECTING 1
57 #define STATE_ESTABLISHED 2
58
59 #if ZOOM_RESULT_LISTS
60 typedef struct ZOOM_resultsets_p *ZOOM_resultsets;
61 #endif
62
63 struct ZOOM_connection_p {
64     enum oid_proto proto;
65     COMSTACK cs;
66     char *host_port;
67     int error;
68     char *addinfo;
69     char *diagset;
70     int state;
71     int mask;
72     int reconnect_ok;
73     ODR odr_in;
74     ODR odr_out;
75     ODR odr_print;
76     ODR odr_save;
77
78     char *buf_in;
79     int len_in;
80     char *buf_out;
81     int len_out;
82     char *proxy;
83     char *tproxy;
84     char *charset;
85     char *lang;
86     char *cookie_out;
87     char *cookie_in;
88     char *client_IP;
89     char *sru_version;
90
91     char *user;
92     char *group;
93     char *password;
94
95     int async;
96     int support_named_resultsets;
97     int last_event;
98
99     int maximum_record_size;
100     int preferred_message_size;
101
102     ZOOM_task tasks;
103     ZOOM_options options;
104 #if ZOOM_RESULT_LISTS
105     ZOOM_resultsets resultsets;
106 #else
107     ZOOM_resultset resultsets;
108 #endif
109     ZOOM_Event m_queue_front;
110     ZOOM_Event m_queue_back;
111     zoom_sru_mode sru_mode;
112     int no_redirects; /* 0 for no redirects. >0 for number of redirects */
113
114     int log_details;
115     int log_api;
116     WRBUF saveAPDU_wrbuf;
117 };
118
119 #if ZOOM_RESULT_LISTS
120 struct ZOOM_resultsets_p {
121     ZOOM_resultset resultset;
122     ZOOM_resultsets next;
123 };
124 #endif
125
126 typedef struct ZOOM_record_cache_p *ZOOM_record_cache;
127
128 #define RECORD_HASH_SIZE  131
129
130 struct ZOOM_resultset_p {
131     Z_SortKeySpecList *r_sort_spec;
132     ZOOM_query query;
133     int refcount;
134     Odr_int size;
135     int step;
136     int piggyback;
137     char *setname;
138     ODR odr;
139     ZOOM_record_cache record_hash[RECORD_HASH_SIZE];
140     ZOOM_options options;
141     ZOOM_connection connection;
142     char **databaseNames;
143     int num_databaseNames;
144     YAZ_MUTEX mutex;
145 #if SHPTR
146     struct WRBUF_shptr *record_wrbuf;
147 #endif
148 #if ZOOM_RESULT_LISTS
149 #else
150     ZOOM_resultset next;
151 #endif
152     ZOOM_facet_field *facets;
153     int num_facets;
154     char **facets_names;
155 };
156
157 struct facet_term_p {
158     char *term;
159     int frequency;
160 };
161
162 struct ZOOM_facet_field_p {
163     char *facet_name;
164     int num_terms;
165     struct facet_term_p *facet_terms;
166 };
167
168 struct ZOOM_scanset_p {
169     int refcount;
170     ODR odr;
171     ZOOM_options options;
172     ZOOM_connection connection;
173     ZOOM_query query;
174     Z_ScanResponse *scan_response;
175     Z_SRW_scanResponse *srw_scan_response;
176
177     char **databaseNames;
178     int num_databaseNames;
179 };
180
181 struct ZOOM_package_p {
182     int refcount;
183     ODR odr_out;
184     ZOOM_options options;
185     ZOOM_connection connection;
186     char *buf_out;
187     int len_out;
188 };
189
190 struct ZOOM_task_p {
191     int running;
192     int which;
193     union {
194 #define ZOOM_TASK_SEARCH 1
195         struct {
196             int count;
197             int start;
198             ZOOM_resultset resultset;
199             char *syntax;
200             char *elementSetName;
201             char *schema;
202             int recv_search_fired;
203         } search;
204 #define ZOOM_TASK_RETRIEVE 2
205         struct {
206             int start;
207             ZOOM_resultset resultset;
208             int count;
209             char *syntax;
210             char *elementSetName;
211             char *schema;
212         } retrieve;
213 #define ZOOM_TASK_CONNECT 3
214 #define ZOOM_TASK_SCAN 4
215         struct {
216             ZOOM_scanset scan;
217         } scan;
218 #define ZOOM_TASK_PACKAGE 5
219         ZOOM_package package;
220 #define ZOOM_TASK_SORT 6
221         struct {
222             ZOOM_resultset resultset;
223             ZOOM_query q;
224         } sort;
225     } u;
226     ZOOM_task next;
227 };
228
229 typedef enum {
230     zoom_pending,
231     zoom_complete
232 } zoom_ret;
233
234 void ZOOM_options_addref (ZOOM_options opt);
235
236 void ZOOM_handle_Z3950_apdu(ZOOM_connection c, Z_APDU *apdu);
237
238 void ZOOM_set_dset_error(ZOOM_connection c, int error,
239                          const char *dset,
240                          const char *addinfo, const char *addinfo2);
241
242 void ZOOM_set_error(ZOOM_connection c, int error, const char *addinfo);
243
244 ZOOM_Event ZOOM_Event_create(int kind);
245 void ZOOM_connection_put_event(ZOOM_connection c, ZOOM_Event event);
246
247 zoom_ret ZOOM_connection_Z3950_send_search(ZOOM_connection c);
248 zoom_ret send_Z3950_present(ZOOM_connection c);
249 zoom_ret ZOOM_connection_Z3950_send_scan(ZOOM_connection c);
250 zoom_ret ZOOM_send_buf(ZOOM_connection c);
251 zoom_ret send_Z3950_sort(ZOOM_connection c, ZOOM_resultset resultset);
252 char **ZOOM_connection_get_databases(ZOOM_connection con, ZOOM_options options,
253                                      int *num, ODR odr);
254 zoom_ret ZOOM_connection_Z3950_send_init(ZOOM_connection c);
255
256 ZOOM_task ZOOM_connection_add_task(ZOOM_connection c, int which);
257 void ZOOM_connection_remove_task(ZOOM_connection c);
258 int ZOOM_test_reconnect(ZOOM_connection c);
259
260 ZOOM_record ZOOM_record_cache_lookup(ZOOM_resultset r, int pos,
261                                      const char *syntax,
262                                      const char *elementSetName,
263                                      const char *schema);
264 void ZOOM_record_cache_add(ZOOM_resultset r, Z_NamePlusRecord *npr,
265                            int pos,
266                            const char *syntax, const char *elementSetName,
267                            const char *schema,
268                            Z_SRW_diagnostic *diag);
269
270 Z_Query *ZOOM_query_get_Z_Query(ZOOM_query s);
271 Z_SortKeySpecList *ZOOM_query_get_sortspec(ZOOM_query s);
272 const char *ZOOM_query_get_query_string(ZOOM_query s);
273 const char *ZOOM_query_get_sru11(ZOOM_query s);
274
275 int ZOOM_uri_to_code(const char *uri);
276
277 zoom_ret ZOOM_connection_srw_send_search(ZOOM_connection c);
278 zoom_ret ZOOM_connection_srw_send_scan(ZOOM_connection c);
279
280 int ZOOM_handle_sru(ZOOM_connection c, Z_HTTP_Response *hres,
281                     zoom_ret *cret, char **addinfo);
282
283 void ZOOM_set_HTTP_error(ZOOM_connection c, int error,
284                          const char *addinfo, const char *addinfo2);
285
286 ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c);
287 void ZOOM_connection_remove_events(ZOOM_connection c);
288 void ZOOM_Event_destroy(ZOOM_Event event);
289 zoom_ret ZOOM_send_GDU(ZOOM_connection c, Z_GDU *gdu);
290 void ZOOM_handle_facet_list(ZOOM_resultset r, Z_FacetList *fl);
291
292 /*
293  * Local variables:
294  * c-basic-offset: 4
295  * c-file-style: "Stroustrup"
296  * indent-tabs-mode: nil
297  * End:
298  * vim: shiftwidth=4 tabstop=8 expandtab
299  */
300