2 * Copyright (C) 1995-1999, Index Data
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.16 2002-04-04 20:50:37 adam
8 * Multi register works with record paths and data1 profile path
10 * Revision 1.15 2002/04/04 14:14:13 adam
11 * Multiple registers (alpha early)
13 * Revision 1.14 2001/01/22 11:41:41 adam
14 * Added support for raw retrieval (element set name "R").
16 * Revision 1.13 2000/03/20 19:08:36 adam
17 * Added remote record import using Z39.50 extended services and Segment
20 * Revision 1.12 2000/03/15 15:00:30 adam
21 * First work on threaded version.
23 * Revision 1.11 1999/10/29 10:00:00 adam
24 * Fixed minor bug where database name wasn't set in zebra_record_fetch.
26 * Revision 1.10 1999/05/26 07:49:13 adam
29 * Revision 1.9 1999/05/20 12:57:18 adam
30 * Implemented TCL filter. Updated recctrl system.
32 * Revision 1.8 1999/03/09 16:27:49 adam
33 * More work on SDRKit integration.
35 * Revision 1.7 1999/03/02 16:15:43 quinn
36 * Added "tagsysno" and "tagrank" directives to zebra.cfg.
38 * Revision 1.6 1999/02/18 15:01:25 adam
41 * Revision 1.5 1999/02/17 11:29:56 adam
42 * Fixed in record_fetch. Minor updates to API.
44 * Revision 1.4 1999/02/02 14:51:07 adam
45 * Updated WIN32 code specific sections. Changed header.
47 * Revision 1.3 1998/10/28 10:54:40 adam
50 * Revision 1.2 1998/10/16 08:14:33 adam
51 * Updated record control system.
53 * Revision 1.1 1998/03/05 08:45:13 adam
54 * New result set model and modular ranking system. Moved towards
55 * descent server API. System information stored as "SGML" records.
73 int zebra_record_ext_read (void *fh, char *buf, size_t count)
75 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
76 return read (fc->fd, buf, count);
79 off_t zebra_record_ext_seek (void *fh, off_t offset)
81 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
82 return lseek (fc->fd, offset + fc->record_offset, SEEK_SET);
85 off_t zebra_record_ext_tell (void *fh)
87 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
88 return lseek (fc->fd, 0, SEEK_CUR) - fc->record_offset;
91 off_t zebra_record_int_seek (void *fh, off_t offset)
93 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
94 return (off_t) (fc->record_int_pos = offset);
97 off_t zebra_record_int_tell (void *fh)
99 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
100 return (off_t) fc->record_int_pos;
103 int zebra_record_int_read (void *fh, char *buf, size_t count)
105 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
106 int l = fc->record_int_len - fc->record_int_pos;
109 l = (l < (int) count) ? l : count;
110 memcpy (buf, fc->record_int_buf + fc->record_int_pos, l);
111 fc->record_int_pos += l;
115 void zebra_record_int_end (void *fh, off_t off)
117 struct zebra_fetch_control *fc = (struct zebra_fetch_control *) fh;
118 fc->offset_end = off;
121 int zebra_record_fetch (ZebraHandle zh, int sysno, int score, ODR stream,
122 oid_value input_format, Z_RecordComposition *comp,
123 oid_value *output_format, char **rec_bufp,
124 int *rec_lenp, char **basenamep)
127 char *fname, *file_type, *basename;
129 struct recRetrieveCtrl retrieveCtrl;
131 struct zebra_fetch_control fc;
132 RecordAttr *recordAttr;
135 rec = rec_get (zh->reg->records, sysno);
138 logf (LOG_DEBUG, "rec_get fail on sysno=%d", sysno);
142 recordAttr = rec_init_attr (zh->reg->zei, rec);
144 file_type = rec->info[recInfo_fileType];
145 fname = rec->info[recInfo_filename];
146 basename = rec->info[recInfo_databaseName];
147 *basenamep = (char *) odr_malloc (stream, strlen(basename)+1);
148 strcpy (*basenamep, basename);
150 if (comp && comp->which == Z_RecordComp_simple &&
151 comp->u.simple->which == Z_ElementSetNames_generic)
153 if (!strcmp (comp->u.simple->u.generic, "R"))
156 if (!(rt = recType_byName (zh->reg->recTypes,
157 file_type, subType, &clientData)))
159 logf (LOG_WARN, "Retrieve: Cannot handle type %s", file_type);
162 logf (LOG_DEBUG, "retrieve localno=%d score=%d", sysno, score);
163 retrieveCtrl.fh = &fc;
165 if (rec->size[recInfo_storeData] > 0)
167 retrieveCtrl.readf = zebra_record_int_read;
168 retrieveCtrl.seekf = zebra_record_int_seek;
169 retrieveCtrl.tellf = zebra_record_int_tell;
170 fc.record_int_len = rec->size[recInfo_storeData];
171 fc.record_int_buf = rec->info[recInfo_storeData];
172 fc.record_int_pos = 0;
173 logf (LOG_DEBUG, "Internal retrieve. %d bytes", fc.record_int_len);
179 if (zh->path_reg && !yaz_is_abspath (fname))
181 strcpy (full_rep, zh->path_reg);
182 strcat (full_rep, "/");
183 strcat (full_rep, fname);
186 strcpy (full_rep, fname);
189 if ((fc.fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
191 logf (LOG_WARN|LOG_ERRNO, "Retrieve fail; missing file: %s",
196 fc.record_offset = recordAttr->recordOffset;
198 retrieveCtrl.readf = zebra_record_ext_read;
199 retrieveCtrl.seekf = zebra_record_ext_seek;
200 retrieveCtrl.tellf = zebra_record_ext_tell;
202 zebra_record_ext_seek (retrieveCtrl.fh, 0);
204 retrieveCtrl.subType = subType;
205 retrieveCtrl.localno = sysno;
206 retrieveCtrl.score = score;
207 retrieveCtrl.recordSize = recordAttr->recordSize;
208 retrieveCtrl.odr = stream;
209 retrieveCtrl.input_format = retrieveCtrl.output_format = input_format;
210 retrieveCtrl.comp = comp;
211 retrieveCtrl.diagnostic = 0;
212 retrieveCtrl.dh = zh->reg->dh;
213 retrieveCtrl.res = zh->res;
214 (*rt->retrieve)(clientData, &retrieveCtrl);
215 *output_format = retrieveCtrl.output_format;
216 *rec_bufp = (char *) retrieveCtrl.rec_buf;
217 *rec_lenp = retrieveCtrl.rec_len;
222 return retrieveCtrl.diagnostic;