1 /* $Id: util.cpp,v 1.14 2006-03-16 10:40:59 adam Exp $
2 Copyright (c) 2005-2006, Index Data.
10 #include <yaz/pquery.h>
11 #include <yaz/otherinfo.h>
12 #include <yaz/querytowrbuf.h> // for yaz_query_to_wrbuf()
17 namespace mp = metaproxy_1;
19 void mp::util::piggyback(int smallSetUpperBound,
20 int largeSetLowerBound,
21 int mediumSetPresentNumber,
23 int &number_to_present)
25 // deal with piggyback
27 if (result_set_size < smallSetUpperBound)
29 // small set . Return all records in set
30 number_to_present = result_set_size;
32 else if (result_set_size > largeSetLowerBound)
34 // large set . Return no records
35 number_to_present = 0;
39 // medium set . Return mediumSetPresentNumber records
40 number_to_present = mediumSetPresentNumber;
41 if (number_to_present > result_set_size)
42 number_to_present = result_set_size;
47 bool mp::util::pqf(ODR odr, Z_APDU *apdu, const std::string &q) {
48 YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
50 Z_RPNQuery *rpn = yaz_pqf_parse(pqf_parser, odr, q.c_str());
53 yaz_pqf_destroy(pqf_parser);
56 yaz_pqf_destroy(pqf_parser);
57 Z_Query *query = (Z_Query *) odr_malloc(odr, sizeof(Z_Query));
58 query->which = Z_Query_type_1;
59 query->u.type_1 = rpn;
61 apdu->u.searchRequest->query = query;
66 std::string mp::util::zQueryToString(Z_Query *query)
68 std::string query_str = "";
70 if (query && query->which == Z_Query_type_1){
71 Z_RPNQuery *rpn = query->u.type_1;
75 // allocate wrbuf (strings in YAZ!)
76 WRBUF w = wrbuf_alloc();
79 yaz_rpnquery_to_wrbuf(w, rpn);
81 // from w to std::string
82 query_str = std::string(wrbuf_buf(w), wrbuf_len(w));
90 if (query && query->which == Z_Query_type_1){
92 // allocate wrbuf (strings in YAZ!)
93 WRBUF w = wrbuf_alloc();
96 yaz_query_to_wrbuf(w, query);
98 // from w to std::string
99 query_str = std::string(wrbuf_buf(w), wrbuf_len(w));
108 void mp::util::get_default_diag(Z_DefaultDiagFormat *r,
109 int &error_code, std::string &addinfo)
111 error_code = *r->condition;
114 case Z_DefaultDiagFormat_v2Addinfo:
115 addinfo = std::string(r->u.v2Addinfo);
117 case Z_DefaultDiagFormat_v3Addinfo:
118 addinfo = r->u.v3Addinfo;
123 void mp::util::get_init_diagnostics(Z_InitResponse *initrs,
124 int &error_code, std::string &addinfo)
126 Z_External *uif = initrs->userInformationField;
128 if (uif && uif->which == Z_External_userInfo1)
130 Z_OtherInformation *ui = uif->u.userInfo1;
132 for (i = 0; i < ui->num_elements; i++)
134 Z_OtherInformationUnit *unit = ui->list[i];
135 if (unit->which == Z_OtherInfo_externallyDefinedInfo &&
136 unit->information.externallyDefinedInfo &&
137 unit->information.externallyDefinedInfo->which ==
140 Z_DiagnosticFormat *diag =
141 unit->information.externallyDefinedInfo->u.diag1;
145 Z_DiagnosticFormat_s *ds = diag->elements[0];
146 if (ds->which == Z_DiagnosticFormat_s_defaultDiagRec)
147 mp::util::get_default_diag(ds->u.defaultDiagRec,
148 error_code, addinfo);
155 int mp::util::get_vhost_otherinfo(Z_OtherInformation **otherInformation,
157 std::list<std::string> &vhosts)
160 for (cat = 1; ; cat++)
162 // check virtual host
164 yaz_oi_get_string_oidval(otherInformation,
166 cat /* categoryValue */,
167 remove_flag /* delete flag */);
170 vhosts.push_back(std::string(vhost));
176 void mp::util::set_vhost_otherinfo(Z_OtherInformation **otherInformation,
178 const std::list<std::string> &vhosts)
181 std::list<std::string>::const_iterator it = vhosts.begin();
182 for (cat = 1; it != vhosts.end() ; cat++, it++)
184 yaz_oi_set_string_oidval(otherInformation, odr,
185 VAL_PROXY, cat, it->c_str());
189 void mp::util::split_zurl(std::string zurl, std::string &host,
190 std::list<std::string> &db)
192 const char *zurl_cstr = zurl.c_str();
193 const char *sep = strchr(zurl_cstr, '/');
197 host = std::string(zurl_cstr, sep - zurl_cstr);
199 const char *cp1 = sep+1;
202 const char *cp2 = strchr(cp1, '+');
204 db.push_back(std::string(cp1, cp2 - cp1));
207 db.push_back(std::string(cp1));
219 bool mp::util::set_databases_from_zurl(ODR odr, std::string zurl,
220 int *db_num, char ***db_strings)
223 std::list<std::string> dblist;
225 split_zurl(zurl, host, dblist);
227 if (dblist.size() == 0)
229 *db_num = dblist.size();
230 *db_strings = (char **) odr_malloc(odr, sizeof(char*) * (*db_num));
232 std::list<std::string>::const_iterator it = dblist.begin();
233 for (int i = 0; it != dblist.end(); it++, i++)
234 (*db_strings)[i] = odr_strdup(odr, it->c_str());
238 mp::odr::odr(int type)
240 m_odr = odr_createmem(type);
245 m_odr = odr_createmem(ODR_ENCODE);
253 mp::odr::operator ODR() const
258 Z_APDU *mp::odr::create_close(Z_APDU *in_apdu,
259 int reason, const char *addinfo)
261 Z_APDU *apdu = create_APDU(Z_APDU_close, in_apdu);
263 *apdu->u.close->closeReason = reason;
265 apdu->u.close->diagnosticInformation = odr_strdup(m_odr, addinfo);
269 Z_APDU *mp::odr::create_APDU(int type, Z_APDU *in_apdu)
271 return mp::util::create_APDU(m_odr, type, in_apdu);
274 Z_APDU *mp::util::create_APDU(ODR odr, int type, Z_APDU *in_apdu)
276 Z_APDU *out_apdu = zget_APDU(odr, type);
278 Z_ReferenceId **id_to = mp::util::get_referenceId(out_apdu);
282 Z_ReferenceId **id_from = mp::util::get_referenceId(in_apdu);
283 if (id_from && *id_from && id_to)
285 *id_to = (Z_ReferenceId*) odr_malloc (odr, sizeof(**id_to));
286 (*id_to)->size = (*id_to)->len = (*id_from)->len;
287 (*id_to)->buf = (unsigned char*) odr_malloc(odr, (*id_to)->len);
288 memcpy((*id_to)->buf, (*id_from)->buf, (*id_to)->len);
296 Z_APDU *mp::odr::create_initResponse(Z_APDU *in_apdu,
297 int error, const char *addinfo)
299 Z_APDU *apdu = create_APDU(Z_APDU_initResponse, in_apdu);
302 apdu->u.initResponse->userInformationField =
303 zget_init_diagnostics(m_odr, error, addinfo);
304 *apdu->u.initResponse->result = 0;
309 Z_APDU *mp::odr::create_searchResponse(Z_APDU *in_apdu,
310 int error, const char *addinfo)
312 Z_APDU *apdu = create_APDU(Z_APDU_searchResponse, in_apdu);
315 Z_Records *rec = (Z_Records *) odr_malloc(m_odr, sizeof(Z_Records));
316 *apdu->u.searchResponse->searchStatus = 0;
317 apdu->u.searchResponse->records = rec;
318 rec->which = Z_Records_NSD;
319 rec->u.nonSurrogateDiagnostic =
320 zget_DefaultDiagFormat(m_odr, error, addinfo);
326 Z_APDU *mp::odr::create_presentResponse(Z_APDU *in_apdu,
327 int error, const char *addinfo)
329 Z_APDU *apdu = create_APDU(Z_APDU_presentResponse, in_apdu);
332 Z_Records *rec = (Z_Records *) odr_malloc(m_odr, sizeof(Z_Records));
333 apdu->u.presentResponse->records = rec;
335 rec->which = Z_Records_NSD;
336 rec->u.nonSurrogateDiagnostic =
337 zget_DefaultDiagFormat(m_odr, error, addinfo);
338 *apdu->u.presentResponse->presentStatus = Z_PresentStatus_failure;
343 Z_APDU *mp::odr::create_scanResponse(Z_APDU *in_apdu,
344 int error, const char *addinfo)
346 Z_APDU *apdu = create_APDU(Z_APDU_scanResponse, in_apdu);
347 Z_ScanResponse *res = apdu->u.scanResponse;
348 res->entries = (Z_ListEntries *) odr_malloc(m_odr, sizeof(*res->entries));
349 res->entries->num_entries = 0;
350 res->entries->entries = 0;
354 *res->scanStatus = Z_Scan_failure;
356 res->entries->num_nonsurrogateDiagnostics = 1;
357 res->entries->nonsurrogateDiagnostics = (Z_DiagRec **)
358 odr_malloc(m_odr, sizeof(Z_DiagRec *));
359 res->entries->nonsurrogateDiagnostics[0] =
360 zget_DiagRec(m_odr, error, addinfo);
364 res->entries->num_nonsurrogateDiagnostics = 0;
365 res->entries->nonsurrogateDiagnostics = 0;
370 Z_GDU *mp::odr::create_HTTP_Response(mp::Session &session,
371 Z_HTTP_Request *hreq, int code)
373 const char *response_version = "1.0";
374 bool keepalive = false;
375 if (!strcmp(hreq->version, "1.0"))
377 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
378 if (v && !strcmp(v, "Keep-Alive"))
382 response_version = "1.0";
386 const char *v = z_HTTP_header_lookup(hreq->headers, "Connection");
387 if (v && !strcmp(v, "close"))
391 response_version = "1.1";
394 Z_GDU *gdu = z_get_HTTP_Response(m_odr, code);
395 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
396 hres->version = odr_strdup(m_odr, response_version);
398 z_HTTP_header_add(m_odr, &hres->headers, "Connection", "Keep-Alive");
403 Z_ReferenceId **mp::util::get_referenceId(Z_APDU *apdu)
407 case Z_APDU_initRequest:
408 return &apdu->u.initRequest->referenceId;
409 case Z_APDU_initResponse:
410 return &apdu->u.initResponse->referenceId;
411 case Z_APDU_searchRequest:
412 return &apdu->u.searchRequest->referenceId;
413 case Z_APDU_searchResponse:
414 return &apdu->u.searchResponse->referenceId;
415 case Z_APDU_presentRequest:
416 return &apdu->u.presentRequest->referenceId;
417 case Z_APDU_presentResponse:
418 return &apdu->u.presentResponse->referenceId;
419 case Z_APDU_deleteResultSetRequest:
420 return &apdu->u.deleteResultSetRequest->referenceId;
421 case Z_APDU_deleteResultSetResponse:
422 return &apdu->u.deleteResultSetResponse->referenceId;
423 case Z_APDU_accessControlRequest:
424 return &apdu->u.accessControlRequest->referenceId;
425 case Z_APDU_accessControlResponse:
426 return &apdu->u.accessControlResponse->referenceId;
427 case Z_APDU_resourceControlRequest:
428 return &apdu->u.resourceControlRequest->referenceId;
429 case Z_APDU_resourceControlResponse:
430 return &apdu->u.resourceControlResponse->referenceId;
431 case Z_APDU_triggerResourceControlRequest:
432 return &apdu->u.triggerResourceControlRequest->referenceId;
433 case Z_APDU_resourceReportRequest:
434 return &apdu->u.resourceReportRequest->referenceId;
435 case Z_APDU_resourceReportResponse:
436 return &apdu->u.resourceReportResponse->referenceId;
437 case Z_APDU_scanRequest:
438 return &apdu->u.scanRequest->referenceId;
439 case Z_APDU_scanResponse:
440 return &apdu->u.scanResponse->referenceId;
441 case Z_APDU_sortRequest:
442 return &apdu->u.sortRequest->referenceId;
443 case Z_APDU_sortResponse:
444 return &apdu->u.sortResponse->referenceId;
445 case Z_APDU_segmentRequest:
446 return &apdu->u.segmentRequest->referenceId;
447 case Z_APDU_extendedServicesRequest:
448 return &apdu->u.extendedServicesRequest->referenceId;
449 case Z_APDU_extendedServicesResponse:
450 return &apdu->u.extendedServicesResponse->referenceId;
452 return &apdu->u.close->referenceId;
461 * indent-tabs-mode: nil
462 * c-file-style: "stroustrup"
464 * vim: shiftwidth=4 tabstop=8 expandtab