1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2008 Index Data
4 Metaproxy 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 Metaproxy 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
21 #include "package.hpp"
23 #include "gduutil.hpp"
24 #include "sru_util.hpp"
25 #include "filter_sru_to_z3950.hpp"
28 #include <yaz/z-core.h>
30 #include <yaz/pquery.h>
31 #include <yaz/oid_db.h>
34 #include <boost/thread/mutex.hpp>
35 #include <boost/thread/condition.hpp>
43 namespace mp = metaproxy_1;
44 namespace mp_util = metaproxy_1::util;
45 namespace yf = mp::filter;
47 namespace metaproxy_1 {
49 class SRUtoZ3950::Impl {
51 void configure(const xmlNode *xmlnode);
52 void process(metaproxy_1::Package &package);
54 union SRW_query {char * cql; char * xcql; char * pqf;};
55 typedef const int& SRW_query_type;
56 std::map<std::string, const xmlNode *> m_database_explain;
58 typedef std::map<std::string, int> ActiveUrlMap;
61 boost::condition m_cond_url_ready;
62 ActiveUrlMap m_active_urls;
64 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
65 bool z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
66 const SRW_query &query,
67 SRW_query_type query_type) const;
69 bool z3950_init_request(mp::Package &package,
72 Z_SRW_PDU *sru_pdu_res) const;
74 bool z3950_close_request(mp::Package &package) const;
76 bool z3950_search_request(
79 Z_SRW_PDU *sru_pdu_res,
80 Z_SRW_searchRetrieveRequest const *sr_req,
81 std::string zurl) const;
83 bool z3950_present_request(
86 Z_SRW_PDU *sru_pdu_res,
87 Z_SRW_searchRetrieveRequest const *sr_req) const;
89 bool z3950_scan_request(mp::Package &package,
91 Z_SRW_PDU *sru_pdu_res,
95 bool z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
96 Z_SRW_searchRetrieveResponse *srw_res,
97 Z_Records *records) const;
99 int z3950_to_srw_diag(mp::odr &odr_en,
100 Z_SRW_searchRetrieveResponse *srw_res,
101 Z_DefaultDiagFormat *ddf) const;
108 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
112 yf::SRUtoZ3950::~SRUtoZ3950()
113 { // must have a destructor because of boost::scoped_ptr
116 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only)
118 m_p->configure(xmlnode);
121 void yf::SRUtoZ3950::process(mp::Package &package) const
123 m_p->process(package);
126 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
128 const xmlNode * dbnode;
130 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next){
131 if (dbnode->type != XML_ELEMENT_NODE)
134 std::string database;
135 mp::xml::check_element_mp(dbnode, "database");
137 for (struct _xmlAttr *attr = dbnode->properties;
138 attr; attr = attr->next){
140 mp::xml::check_attribute(attr, "", "name");
141 database = mp::xml::get_text(attr);
143 const xmlNode *explainnode;
144 for (explainnode = dbnode->children;
145 explainnode; explainnode = explainnode->next){
146 if (explainnode->type != XML_ELEMENT_NODE)
151 // assigning explain node to database name - no check yet
152 m_database_explain.insert(std::make_pair(database, explainnode));
157 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
161 mp::odr odr_de(ODR_DECODE);
162 Z_SRW_PDU *sru_pdu_req = 0;
164 mp::odr odr_en(ODR_ENCODE);
165 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
167 // determine database with the HTTP header information only
168 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
169 std::map<std::string, const xmlNode *>::iterator idbexp;
170 idbexp = m_database_explain.find(sruinfo.database);
172 // assign explain config XML DOM node if database is known
173 const xmlNode *explainnode = 0;
174 if (idbexp != m_database_explain.end()){
175 explainnode = idbexp->second;
177 // just moving package if database is not known
184 // decode SRU request
187 char *stylesheet = 0;
189 // filter acts as sink for non-valid SRU requests
190 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
192 charset, stylesheet)))
196 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
197 sruinfo, explainnode);
198 mp_util::build_sru_response(package, odr_en, soap,
199 sru_pdu_res, charset, stylesheet);
203 metaproxy_1::odr odr;
205 odr.create_HTTP_Response(package.session(),
206 zgdu_req->u.HTTP_Request, 400);
207 package.response() = zgdu_res;
213 Z_SRW_extra_arg *arg;
215 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
216 if (!strcmp(arg->name, "x-target"))
218 zurl = std::string(arg->value);
220 else if (!strcmp(arg->name, "x-max-sockets"))
222 package.origin().set_max_sockets(atoi(arg->value));
226 // filter acts as sink for SRU explain requests
227 if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
229 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
230 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
232 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
233 sruinfo, explainnode, er_req);
236 && sru_pdu_req->which == Z_SRW_searchRetrieve_request
237 && sru_pdu_req->u.request)
239 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
241 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
243 // checking that we have a query
244 ok = mp_util::check_sru_query_exists(package, odr_en,
245 sru_pdu_res, sr_req);
247 if (ok && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
249 ok = z3950_search_request(package, odr_en,
250 sru_pdu_res, sr_req, zurl);
253 && sru_pdu_res->u.response->numberOfRecords
254 && *(sru_pdu_res->u.response->numberOfRecords)
255 && sr_req->maximumRecords
256 && *(sr_req->maximumRecords))
258 ok = z3950_present_request(package, odr_en,
261 z3950_close_request(package);
267 && sru_pdu_req->which == Z_SRW_scan_request
268 && sru_pdu_req->u.scan_request)
270 Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
272 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
274 // we do not do scan at the moment, therefore issuing a diagnostic
275 yaz_add_srw_diagnostic(odr_en,
276 &(sru_pdu_res->u.scan_response->diagnostics),
277 &(sru_pdu_res->u.scan_response->num_diagnostics),
278 YAZ_SRW_UNSUPP_OPERATION, "scan");
280 // to be used when we do scan
281 if (false && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
283 z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
284 z3950_close_request(package);
289 //std::cout << "SRU OPERATION NOT SUPPORTED \n";
290 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
292 // TODO: make nice diagnostic return package
296 // build and send SRU response
297 mp_util::build_sru_response(package, odr_en, soap,
298 sru_pdu_res, charset, stylesheet);
302 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
304 Z_GDU *zgdu_req = package.request().get();
306 // ignoring all non HTTP_Request packages
307 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
312 // only working on HTTP_Request packages now
314 // see if HTTP request is already being executed..
315 // we consider only the SRU - GET case..
316 if (zgdu_req->u.HTTP_Request->content_len == 0)
318 const char *path = zgdu_req->u.HTTP_Request->path;
319 boost::mutex::scoped_lock lock(m_mutex);
322 ActiveUrlMap::iterator it = m_active_urls.find(path);
323 if (it == m_active_urls.end())
325 m_active_urls[path] = 1;
328 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
329 m_cond_url_ready.wait(lock);
332 sru(package, zgdu_req);
333 if (zgdu_req->u.HTTP_Request->content_len == 0)
335 const char *path = zgdu_req->u.HTTP_Request->path;
336 boost::mutex::scoped_lock lock(m_mutex);
338 ActiveUrlMap::iterator it = m_active_urls.find(path);
340 m_active_urls.erase(it);
341 m_cond_url_ready.notify_all();
347 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
350 Z_SRW_PDU *sru_pdu_res) const
352 // prepare Z3950 package
353 Package z3950_package(package.session(), package.origin());
354 z3950_package.copy_filter(package);
356 // set initRequest APDU
357 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
358 Z_InitRequest *init_req = apdu->u.initRequest;
359 //TODO: add user name in apdu
360 //TODO: add user passwd in apdu
361 //init_req->idAuthentication = org_init->idAuthentication;
362 //init_req->implementationId = "IDxyz";
363 //init_req->implementationName = "NAMExyz";
364 //init_req->implementationVersion = "VERSIONxyz";
366 ODR_MASK_SET(init_req->options, Z_Options_search);
367 ODR_MASK_SET(init_req->options, Z_Options_present);
368 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
369 ODR_MASK_SET(init_req->options, Z_Options_scan);
371 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
372 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
373 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
378 std::list<std::string> dblist;
379 mp_util::split_zurl(zurl, host, dblist);
380 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
383 z3950_package.request() = apdu;
385 // send Z3950 package
386 z3950_package.move();
388 // dead Z3950 backend detection
389 if (z3950_package.session().is_closed()){
390 yaz_add_srw_diagnostic(odr_en,
391 &(sru_pdu_res->u.response->diagnostics),
392 &(sru_pdu_res->u.response->num_diagnostics),
393 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
397 // check successful initResponse
398 Z_GDU *z3950_gdu = z3950_package.response().get();
400 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
401 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
402 && *z3950_gdu->u.z3950->u.initResponse->result)
405 yaz_add_srw_diagnostic(odr_en,
406 &(sru_pdu_res->u.response->diagnostics),
407 &(sru_pdu_res->u.response->num_diagnostics),
408 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
413 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
415 // prepare and close Z3950 package
416 Package z3950_package(package.session(), package.origin());
417 z3950_package.copy_filter(package);
418 z3950_package.session().close();
421 //mp::odr odr_en(ODR_ENCODE);
422 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
423 //z3950_package.request() = apdu;
425 z3950_package.move();
427 // check successful close response
428 //Z_GDU *z3950_gdu = z3950_package.response().get();
429 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
430 // && z3950_gdu->u.z3950->which == Z_APDU_close)
433 if (z3950_package.session().is_closed()){
439 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
441 Z_SRW_PDU *sru_pdu_res,
442 Z_SRW_searchRetrieveRequest
444 std::string zurl) const
447 assert(sru_pdu_res->u.response);
449 Package z3950_package(package.session(), package.origin());
450 z3950_package.copy_filter(package);
452 //add stuff in z3950 apdu
453 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
454 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
457 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
458 &z_searchRequest->num_databaseNames,
459 &z_searchRequest->databaseNames))
461 z_searchRequest->num_databaseNames = 1;
462 z_searchRequest->databaseNames = (char**)
463 odr_malloc(odr_en, sizeof(char *));
465 if (sr_req->database)
466 z_searchRequest->databaseNames[0]
467 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
469 z_searchRequest->databaseNames[0]
470 = odr_strdup(odr_en, "Default");
474 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
475 z_searchRequest->query = z_query;
477 if (!z3950_build_query(odr_en, z_query,
478 (const SRW_query&)sr_req->query,
481 yaz_add_srw_diagnostic(odr_en,
482 &(sru_pdu_res->u.response->diagnostics),
483 &(sru_pdu_res->u.response->num_diagnostics),
488 z3950_package.request() = apdu;
490 // send Z39.50 package off to backend
491 z3950_package.move();
494 Z_GDU *z3950_gdu = z3950_package.response().get();
496 //TODO: check success condition
497 //int yaz_diag_bib1_to_srw (int bib1_code);
498 //int yaz_diag_srw_to_bib1(int srw_code);
499 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
501 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
502 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
503 || !z3950_gdu->u.z3950->u.searchResponse
504 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
506 yaz_add_srw_diagnostic(odr_en,
507 &(sru_pdu_res->u.response->diagnostics),
508 &(sru_pdu_res->u.response->num_diagnostics),
513 // everything fine, continuing
514 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
516 // checking non surrogate diagnostics in Z3950 search response package
517 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
523 // Finally, roll on and srw'fy number of records
524 sru_pdu_res->u.response->numberOfRecords
525 = (int *) odr_malloc(odr_en, sizeof(int *));
526 *(sru_pdu_res->u.response->numberOfRecords) = *(sr->resultCount);
528 // srw'fy nextRecordPosition
529 //sru_pdu_res->u.response->nextRecordPosition
530 // = (int *) odr_malloc(odr_en, sizeof(int *));
531 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
537 yf::SRUtoZ3950::Impl::z3950_present_request(mp::Package &package,
539 Z_SRW_PDU *sru_pdu_res,
540 Z_SRW_searchRetrieveRequest
544 assert(sru_pdu_res->u.response);
551 if (sr_req->maximumRecords)
552 max_recs = *sr_req->maximumRecords;
553 if (sr_req->startRecord)
554 start = *sr_req->startRecord;
556 // no need to work if nobody wants record ..
560 bool send_z3950_present = true;
562 // recordXPath unsupported.
563 if (sr_req->recordXPath)
565 send_z3950_present = false;
566 yaz_add_srw_diagnostic(odr_en,
567 &(sru_pdu_res->u.response->diagnostics),
568 &(sru_pdu_res->u.response->num_diagnostics),
569 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
572 // resultSetTTL unsupported.
573 // resultSetIdleTime in response
574 if (sr_req->resultSetTTL)
576 send_z3950_present = false;
577 yaz_add_srw_diagnostic(odr_en,
578 &(sru_pdu_res->u.response->diagnostics),
579 &(sru_pdu_res->u.response->num_diagnostics),
580 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
584 if (sr_req->sort_type != Z_SRW_sort_type_none)
586 send_z3950_present = false;
587 yaz_add_srw_diagnostic(odr_en,
588 &(sru_pdu_res->u.response->diagnostics),
589 &(sru_pdu_res->u.response->num_diagnostics),
590 YAZ_SRW_SORT_UNSUPP, 0);
593 // start record requested negative, or larger than number of records
594 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
596 send_z3950_present = false;
597 yaz_add_srw_diagnostic(odr_en,
598 &(sru_pdu_res->u.response->diagnostics),
599 &(sru_pdu_res->u.response->num_diagnostics),
600 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
603 // maximumRecords requested negative
606 send_z3950_present = false;
607 yaz_add_srw_diagnostic(odr_en,
608 &(sru_pdu_res->u.response->diagnostics),
609 &(sru_pdu_res->u.response->num_diagnostics),
610 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
614 // exit on all these above diagnostics
615 if (!send_z3950_present)
618 // now packaging the z3950 present request
619 Package z3950_package(package.session(), package.origin());
620 z3950_package.copy_filter(package);
621 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
623 assert(apdu->u.presentRequest);
625 // z3950'fy start record position
626 *apdu->u.presentRequest->resultSetStartPoint = start;
628 // z3950'fy number of records requested
629 // protect against requesting records out of range
630 *apdu->u.presentRequest->numberOfRecordsRequested
632 *sru_pdu_res->u.response->numberOfRecords - start + 1);
634 // z3950'fy recordPacking
635 int record_packing = Z_SRW_recordPacking_XML;
636 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
637 record_packing = Z_SRW_recordPacking_string;
639 // RecordSyntax will always be XML
640 apdu->u.presentRequest->preferredRecordSyntax
641 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
643 // z3950'fy record schema
644 if (sr_req->recordSchema)
646 apdu->u.presentRequest->recordComposition
647 = (Z_RecordComposition *)
648 odr_malloc(odr_en, sizeof(Z_RecordComposition));
649 apdu->u.presentRequest->recordComposition->which
650 = Z_RecordComp_simple;
651 apdu->u.presentRequest->recordComposition->u.simple
652 = mp_util::build_esn_from_schema(odr_en,
654 sr_req->recordSchema);
657 // z3950'fy time to live - flagged as diagnostics above
658 //if (sr_req->resultSetTTL)
660 // attaching Z3950 package to filter chain
661 z3950_package.request() = apdu;
663 // sending Z30.50 present request
664 z3950_package.move();
666 //check successful Z3950 present response
667 Z_GDU *z3950_gdu = z3950_package.response().get();
668 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
669 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
670 || !z3950_gdu->u.z3950->u.presentResponse)
673 yaz_add_srw_diagnostic(odr_en,
674 &(sru_pdu_res->u.response->diagnostics),
675 &(sru_pdu_res->u.response->num_diagnostics),
676 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
681 // everything fine, continuing
683 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
684 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
687 // checking non surrogate diagnostics in Z3950 present response package
688 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
694 // copy all records if existing
695 if (pr->records && pr->records->which == Z_Records_DBOSD)
697 // srw'fy number of returned records
699 = pr->records->u.databaseOrSurDiagnostics->num_records;
702 = (Z_SRW_record *) odr_malloc(odr_en,
704 * sizeof(Z_SRW_record));
707 // srw'fy nextRecordPosition
708 // next position never zero or behind the last z3950 record
709 if (pr->nextResultSetPosition
710 && *(pr->nextResultSetPosition) > 0
711 && *(pr->nextResultSetPosition)
712 <= *(sru_pdu_res->u.response->numberOfRecords))
713 sru_res->nextRecordPosition
714 = odr_intdup(odr_en, *(pr->nextResultSetPosition));
716 // inserting all records
717 for (int i = 0; i < sru_res->num_records; i++)
719 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
720 Z_NamePlusRecord *npr
721 = pr->records->u.databaseOrSurDiagnostics->records[i];
723 sru_res->records[i].recordPacking = record_packing;
725 if (npr->which == Z_NamePlusRecord_databaseRecord &&
726 npr->u.databaseRecord->direct_reference
727 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
730 // got XML record back
731 Z_External *r = npr->u.databaseRecord;
732 sru_res->records[i].recordPosition =
733 odr_intdup(odr_en, position);
734 sru_res->records[i].recordSchema = sr_req->recordSchema;
735 sru_res->records[i].recordData_buf
736 = odr_strdupn(odr_en,
737 (const char *)r->u.octet_aligned->buf,
738 r->u.octet_aligned->len);
739 sru_res->records[i].recordData_len
740 = r->u.octet_aligned->len;
744 // not XML or no database record at all
745 yaz_mk_sru_surrogate(
746 odr_en, sru_res->records + i, position,
747 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
756 yf::SRUtoZ3950::Impl::z3950_scan_request(mp::Package &package,
758 Z_SRW_PDU *sru_pdu_res,
759 Z_SRW_scanRequest const *sr_req) const
761 assert(sru_pdu_res->u.scan_response);
763 Package z3950_package(package.session(), package.origin());
764 z3950_package.copy_filter(package);
765 //mp::odr odr_en(ODR_ENCODE);
766 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_scanRequest);
768 //TODO: add stuff in apdu
769 Z_ScanRequest *z_scanRequest = apdu->u.scanRequest;
771 // database repackaging
772 z_scanRequest->num_databaseNames = 1;
773 z_scanRequest->databaseNames = (char**)
774 odr_malloc(odr_en, sizeof(char *));
775 if (sr_req->database)
776 z_scanRequest->databaseNames[0]
777 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
779 z_scanRequest->databaseNames[0]
780 = odr_strdup(odr_en, "Default");
784 // CQL or XCQL scan is not possible in Z3950, flagging a diagnostic
785 if (sr_req->query_type != Z_SRW_query_type_pqf)
787 //send_to_srw_client_error(7, "query");
791 // PQF query repackaging
792 // need to use Z_AttributesPlusTerm structure, not Z_Query
793 // this can be digget out of a
794 // Z_query->type1(Z_RPNQuery)->RPNStructure(Z_RPNStructure)
795 // ->u.simple(Z_Operand)->u.attributesPlusTerm(Z_AttributesPlusTerm )
797 //Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
798 //z_searchRequest->query = z_query;
800 //if (!z3950_build_query(odr_en, z_query,
801 // (const SRW_query&)sr_req->query,
802 // sr_req->query_type))
804 //send_to_srw_client_error(7, "query");
810 z3950_package.request() = apdu;
811 std::cout << "z3950_scan_request " << *apdu << "\n";
813 z3950_package.move();
814 //TODO: check success condition
819 bool yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
820 const SRW_query &query,
821 SRW_query_type query_type) const
823 if (query_type == Z_SRW_query_type_cql)
825 Z_External *ext = (Z_External *)
826 odr_malloc(odr_en, sizeof(*ext));
827 ext->direct_reference =
828 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
829 ext->indirect_reference = 0;
831 ext->which = Z_External_CQL;
832 ext->u.cql = const_cast<char *>(query.cql);
834 z_query->which = Z_Query_type_104;
835 z_query->u.type_104 = ext;
839 if (query_type == Z_SRW_query_type_pqf)
841 Z_RPNQuery *RPNquery;
842 YAZ_PQF_Parser pqf_parser;
844 pqf_parser = yaz_pqf_create ();
846 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, query.pqf);
849 std::cout << "TODO: Handeling of bad PQF\n";
850 std::cout << "TODO: Diagnostic to be send\n";
852 z_query->which = Z_Query_type_1;
853 z_query->u.type_1 = RPNquery;
855 yaz_pqf_destroy(pqf_parser);
863 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
864 Z_SRW_searchRetrieveResponse
866 Z_Records *records) const
868 // checking non surrogate diagnostics in Z3950 present response package
870 && records->which == Z_Records_NSD
871 && records->u.nonSurrogateDiagnostic)
873 z3950_to_srw_diag(odr_en, sru_res,
874 records->u.nonSurrogateDiagnostic);
882 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
883 Z_SRW_searchRetrieveResponse *sru_res,
884 Z_DefaultDiagFormat *ddf) const
886 int bib1_code = *ddf->condition;
887 sru_res->num_diagnostics = 1;
888 sru_res->diagnostics = (Z_SRW_diagnostic *)
889 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
890 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
891 yaz_diag_bib1_to_srw(bib1_code),
898 static mp::filter::Base* filter_creator()
900 return new mp::filter::SRUtoZ3950;
904 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
915 * indent-tabs-mode: nil
916 * c-file-style: "stroustrup"
918 * vim: shiftwidth=4 tabstop=8 expandtab