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);
222 // filter acts as sink for SRU explain requests
223 if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
225 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
226 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
228 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
229 sruinfo, explainnode, er_req);
232 && sru_pdu_req->which == Z_SRW_searchRetrieve_request
233 && sru_pdu_req->u.request)
235 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
237 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
239 // checking that we have a query
240 ok = mp_util::check_sru_query_exists(package, odr_en,
241 sru_pdu_res, sr_req);
243 if (ok && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
245 ok = z3950_search_request(package, odr_en,
246 sru_pdu_res, sr_req, zurl);
249 && sru_pdu_res->u.response->numberOfRecords
250 && *(sru_pdu_res->u.response->numberOfRecords)
251 && sr_req->maximumRecords
252 && *(sr_req->maximumRecords))
254 ok = z3950_present_request(package, odr_en,
257 z3950_close_request(package);
263 && sru_pdu_req->which == Z_SRW_scan_request
264 && sru_pdu_req->u.scan_request)
266 Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
268 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
270 // we do not do scan at the moment, therefore issuing a diagnostic
271 yaz_add_srw_diagnostic(odr_en,
272 &(sru_pdu_res->u.scan_response->diagnostics),
273 &(sru_pdu_res->u.scan_response->num_diagnostics),
274 YAZ_SRW_UNSUPP_OPERATION, "scan");
276 // to be used when we do scan
277 if (false && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
279 z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
280 z3950_close_request(package);
285 //std::cout << "SRU OPERATION NOT SUPPORTED \n";
286 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
288 // TODO: make nice diagnostic return package
292 // build and send SRU response
293 mp_util::build_sru_response(package, odr_en, soap,
294 sru_pdu_res, charset, stylesheet);
298 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
300 Z_GDU *zgdu_req = package.request().get();
302 // ignoring all non HTTP_Request packages
303 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
308 // only working on HTTP_Request packages now
310 // see if HTTP request is already being executed..
311 // we consider only the SRU - GET case..
312 if (zgdu_req->u.HTTP_Request->content_len == 0)
314 const char *path = zgdu_req->u.HTTP_Request->path;
315 boost::mutex::scoped_lock lock(m_mutex);
318 ActiveUrlMap::iterator it = m_active_urls.find(path);
319 if (it == m_active_urls.end())
321 m_active_urls[path] = 1;
324 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
325 m_cond_url_ready.wait(lock);
328 sru(package, zgdu_req);
329 if (zgdu_req->u.HTTP_Request->content_len == 0)
331 const char *path = zgdu_req->u.HTTP_Request->path;
332 boost::mutex::scoped_lock lock(m_mutex);
334 ActiveUrlMap::iterator it = m_active_urls.find(path);
336 m_active_urls.erase(it);
337 m_cond_url_ready.notify_all();
343 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
346 Z_SRW_PDU *sru_pdu_res) const
348 // prepare Z3950 package
349 Package z3950_package(package.session(), package.origin());
350 z3950_package.copy_filter(package);
352 // set initRequest APDU
353 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
354 Z_InitRequest *init_req = apdu->u.initRequest;
355 //TODO: add user name in apdu
356 //TODO: add user passwd in apdu
357 //init_req->idAuthentication = org_init->idAuthentication;
358 //init_req->implementationId = "IDxyz";
359 //init_req->implementationName = "NAMExyz";
360 //init_req->implementationVersion = "VERSIONxyz";
362 ODR_MASK_SET(init_req->options, Z_Options_search);
363 ODR_MASK_SET(init_req->options, Z_Options_present);
364 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
365 ODR_MASK_SET(init_req->options, Z_Options_scan);
367 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
368 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
369 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
374 std::list<std::string> dblist;
375 mp_util::split_zurl(zurl, host, dblist);
376 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
379 z3950_package.request() = apdu;
381 // send Z3950 package
382 z3950_package.move();
384 // dead Z3950 backend detection
385 if (z3950_package.session().is_closed()){
386 yaz_add_srw_diagnostic(odr_en,
387 &(sru_pdu_res->u.response->diagnostics),
388 &(sru_pdu_res->u.response->num_diagnostics),
389 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
393 // check successful initResponse
394 Z_GDU *z3950_gdu = z3950_package.response().get();
396 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
397 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
398 && *z3950_gdu->u.z3950->u.initResponse->result)
401 yaz_add_srw_diagnostic(odr_en,
402 &(sru_pdu_res->u.response->diagnostics),
403 &(sru_pdu_res->u.response->num_diagnostics),
404 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
409 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
411 // prepare and close Z3950 package
412 Package z3950_package(package.session(), package.origin());
413 z3950_package.copy_filter(package);
414 z3950_package.session().close();
417 //mp::odr odr_en(ODR_ENCODE);
418 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
419 //z3950_package.request() = apdu;
421 z3950_package.move();
423 // check successful close response
424 //Z_GDU *z3950_gdu = z3950_package.response().get();
425 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
426 // && z3950_gdu->u.z3950->which == Z_APDU_close)
429 if (z3950_package.session().is_closed()){
435 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
437 Z_SRW_PDU *sru_pdu_res,
438 Z_SRW_searchRetrieveRequest
440 std::string zurl) const
443 assert(sru_pdu_res->u.response);
445 Package z3950_package(package.session(), package.origin());
446 z3950_package.copy_filter(package);
448 //add stuff in z3950 apdu
449 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
450 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
453 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
454 &z_searchRequest->num_databaseNames,
455 &z_searchRequest->databaseNames))
457 z_searchRequest->num_databaseNames = 1;
458 z_searchRequest->databaseNames = (char**)
459 odr_malloc(odr_en, sizeof(char *));
461 if (sr_req->database)
462 z_searchRequest->databaseNames[0]
463 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
465 z_searchRequest->databaseNames[0]
466 = odr_strdup(odr_en, "Default");
470 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
471 z_searchRequest->query = z_query;
473 if (!z3950_build_query(odr_en, z_query,
474 (const SRW_query&)sr_req->query,
477 yaz_add_srw_diagnostic(odr_en,
478 &(sru_pdu_res->u.response->diagnostics),
479 &(sru_pdu_res->u.response->num_diagnostics),
484 z3950_package.request() = apdu;
486 // send Z39.50 package off to backend
487 z3950_package.move();
490 Z_GDU *z3950_gdu = z3950_package.response().get();
492 //TODO: check success condition
493 //int yaz_diag_bib1_to_srw (int bib1_code);
494 //int yaz_diag_srw_to_bib1(int srw_code);
495 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
497 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
498 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
499 || !z3950_gdu->u.z3950->u.searchResponse
500 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
502 yaz_add_srw_diagnostic(odr_en,
503 &(sru_pdu_res->u.response->diagnostics),
504 &(sru_pdu_res->u.response->num_diagnostics),
509 // everything fine, continuing
510 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
512 // checking non surrogate diagnostics in Z3950 search response package
513 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
519 // Finally, roll on and srw'fy number of records
520 sru_pdu_res->u.response->numberOfRecords
521 = (int *) odr_malloc(odr_en, sizeof(int *));
522 *(sru_pdu_res->u.response->numberOfRecords) = *(sr->resultCount);
524 // srw'fy nextRecordPosition
525 //sru_pdu_res->u.response->nextRecordPosition
526 // = (int *) odr_malloc(odr_en, sizeof(int *));
527 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
533 yf::SRUtoZ3950::Impl::z3950_present_request(mp::Package &package,
535 Z_SRW_PDU *sru_pdu_res,
536 Z_SRW_searchRetrieveRequest
540 assert(sru_pdu_res->u.response);
547 if (sr_req->maximumRecords)
548 max_recs = *sr_req->maximumRecords;
549 if (sr_req->startRecord)
550 start = *sr_req->startRecord;
552 // no need to work if nobody wants record ..
556 bool send_z3950_present = true;
558 // recordXPath unsupported.
559 if (sr_req->recordXPath)
561 send_z3950_present = false;
562 yaz_add_srw_diagnostic(odr_en,
563 &(sru_pdu_res->u.response->diagnostics),
564 &(sru_pdu_res->u.response->num_diagnostics),
565 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
568 // resultSetTTL unsupported.
569 // resultSetIdleTime in response
570 if (sr_req->resultSetTTL)
572 send_z3950_present = false;
573 yaz_add_srw_diagnostic(odr_en,
574 &(sru_pdu_res->u.response->diagnostics),
575 &(sru_pdu_res->u.response->num_diagnostics),
576 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
580 if (sr_req->sort_type != Z_SRW_sort_type_none)
582 send_z3950_present = false;
583 yaz_add_srw_diagnostic(odr_en,
584 &(sru_pdu_res->u.response->diagnostics),
585 &(sru_pdu_res->u.response->num_diagnostics),
586 YAZ_SRW_SORT_UNSUPP, 0);
589 // start record requested negative, or larger than number of records
590 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
592 send_z3950_present = false;
593 yaz_add_srw_diagnostic(odr_en,
594 &(sru_pdu_res->u.response->diagnostics),
595 &(sru_pdu_res->u.response->num_diagnostics),
596 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
599 // maximumRecords requested negative
602 send_z3950_present = false;
603 yaz_add_srw_diagnostic(odr_en,
604 &(sru_pdu_res->u.response->diagnostics),
605 &(sru_pdu_res->u.response->num_diagnostics),
606 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
610 // exit on all these above diagnostics
611 if (!send_z3950_present)
614 // now packaging the z3950 present request
615 Package z3950_package(package.session(), package.origin());
616 z3950_package.copy_filter(package);
617 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
619 assert(apdu->u.presentRequest);
621 // z3950'fy start record position
622 *apdu->u.presentRequest->resultSetStartPoint = start;
624 // z3950'fy number of records requested
625 // protect against requesting records out of range
626 *apdu->u.presentRequest->numberOfRecordsRequested
628 *sru_pdu_res->u.response->numberOfRecords - start + 1);
630 // z3950'fy recordPacking
631 int record_packing = Z_SRW_recordPacking_XML;
632 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
633 record_packing = Z_SRW_recordPacking_string;
635 // RecordSyntax will always be XML
636 apdu->u.presentRequest->preferredRecordSyntax
637 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
639 // z3950'fy record schema
640 if (sr_req->recordSchema)
642 apdu->u.presentRequest->recordComposition
643 = (Z_RecordComposition *)
644 odr_malloc(odr_en, sizeof(Z_RecordComposition));
645 apdu->u.presentRequest->recordComposition->which
646 = Z_RecordComp_simple;
647 apdu->u.presentRequest->recordComposition->u.simple
648 = mp_util::build_esn_from_schema(odr_en,
650 sr_req->recordSchema);
653 // z3950'fy time to live - flagged as diagnostics above
654 //if (sr_req->resultSetTTL)
656 // attaching Z3950 package to filter chain
657 z3950_package.request() = apdu;
659 // sending Z30.50 present request
660 z3950_package.move();
662 //check successful Z3950 present response
663 Z_GDU *z3950_gdu = z3950_package.response().get();
664 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
665 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
666 || !z3950_gdu->u.z3950->u.presentResponse)
669 yaz_add_srw_diagnostic(odr_en,
670 &(sru_pdu_res->u.response->diagnostics),
671 &(sru_pdu_res->u.response->num_diagnostics),
672 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
677 // everything fine, continuing
679 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
680 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
683 // checking non surrogate diagnostics in Z3950 present response package
684 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
690 // copy all records if existing
691 if (pr->records && pr->records->which == Z_Records_DBOSD)
693 // srw'fy number of returned records
695 = pr->records->u.databaseOrSurDiagnostics->num_records;
698 = (Z_SRW_record *) odr_malloc(odr_en,
700 * sizeof(Z_SRW_record));
703 // srw'fy nextRecordPosition
704 // next position never zero or behind the last z3950 record
705 if (pr->nextResultSetPosition
706 && *(pr->nextResultSetPosition) > 0
707 && *(pr->nextResultSetPosition)
708 <= *(sru_pdu_res->u.response->numberOfRecords))
709 sru_res->nextRecordPosition
710 = odr_intdup(odr_en, *(pr->nextResultSetPosition));
712 // inserting all records
713 for (int i = 0; i < sru_res->num_records; i++)
715 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
716 Z_NamePlusRecord *npr
717 = pr->records->u.databaseOrSurDiagnostics->records[i];
719 sru_res->records[i].recordPacking = record_packing;
721 if (npr->which == Z_NamePlusRecord_databaseRecord &&
722 npr->u.databaseRecord->direct_reference
723 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
726 // got XML record back
727 Z_External *r = npr->u.databaseRecord;
728 sru_res->records[i].recordPosition =
729 odr_intdup(odr_en, position);
730 sru_res->records[i].recordSchema = sr_req->recordSchema;
731 sru_res->records[i].recordData_buf
732 = odr_strdupn(odr_en,
733 (const char *)r->u.octet_aligned->buf,
734 r->u.octet_aligned->len);
735 sru_res->records[i].recordData_len
736 = r->u.octet_aligned->len;
740 // not XML or no database record at all
741 yaz_mk_sru_surrogate(
742 odr_en, sru_res->records + i, position,
743 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
752 yf::SRUtoZ3950::Impl::z3950_scan_request(mp::Package &package,
754 Z_SRW_PDU *sru_pdu_res,
755 Z_SRW_scanRequest const *sr_req) const
757 assert(sru_pdu_res->u.scan_response);
759 Package z3950_package(package.session(), package.origin());
760 z3950_package.copy_filter(package);
761 //mp::odr odr_en(ODR_ENCODE);
762 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_scanRequest);
764 //TODO: add stuff in apdu
765 Z_ScanRequest *z_scanRequest = apdu->u.scanRequest;
767 // database repackaging
768 z_scanRequest->num_databaseNames = 1;
769 z_scanRequest->databaseNames = (char**)
770 odr_malloc(odr_en, sizeof(char *));
771 if (sr_req->database)
772 z_scanRequest->databaseNames[0]
773 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
775 z_scanRequest->databaseNames[0]
776 = odr_strdup(odr_en, "Default");
780 // CQL or XCQL scan is not possible in Z3950, flagging a diagnostic
781 if (sr_req->query_type != Z_SRW_query_type_pqf)
783 //send_to_srw_client_error(7, "query");
787 // PQF query repackaging
788 // need to use Z_AttributesPlusTerm structure, not Z_Query
789 // this can be digget out of a
790 // Z_query->type1(Z_RPNQuery)->RPNStructure(Z_RPNStructure)
791 // ->u.simple(Z_Operand)->u.attributesPlusTerm(Z_AttributesPlusTerm )
793 //Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
794 //z_searchRequest->query = z_query;
796 //if (!z3950_build_query(odr_en, z_query,
797 // (const SRW_query&)sr_req->query,
798 // sr_req->query_type))
800 //send_to_srw_client_error(7, "query");
806 z3950_package.request() = apdu;
807 std::cout << "z3950_scan_request " << *apdu << "\n";
809 z3950_package.move();
810 //TODO: check success condition
815 bool yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
816 const SRW_query &query,
817 SRW_query_type query_type) const
819 if (query_type == Z_SRW_query_type_cql)
821 Z_External *ext = (Z_External *)
822 odr_malloc(odr_en, sizeof(*ext));
823 ext->direct_reference =
824 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
825 ext->indirect_reference = 0;
827 ext->which = Z_External_CQL;
828 ext->u.cql = const_cast<char *>(query.cql);
830 z_query->which = Z_Query_type_104;
831 z_query->u.type_104 = ext;
835 if (query_type == Z_SRW_query_type_pqf)
837 Z_RPNQuery *RPNquery;
838 YAZ_PQF_Parser pqf_parser;
840 pqf_parser = yaz_pqf_create ();
842 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, query.pqf);
845 std::cout << "TODO: Handeling of bad PQF\n";
846 std::cout << "TODO: Diagnostic to be send\n";
848 z_query->which = Z_Query_type_1;
849 z_query->u.type_1 = RPNquery;
851 yaz_pqf_destroy(pqf_parser);
859 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
860 Z_SRW_searchRetrieveResponse
862 Z_Records *records) const
864 // checking non surrogate diagnostics in Z3950 present response package
866 && records->which == Z_Records_NSD
867 && records->u.nonSurrogateDiagnostic)
869 z3950_to_srw_diag(odr_en, sru_res,
870 records->u.nonSurrogateDiagnostic);
878 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
879 Z_SRW_searchRetrieveResponse *sru_res,
880 Z_DefaultDiagFormat *ddf) const
882 int bib1_code = *ddf->condition;
883 sru_res->num_diagnostics = 1;
884 sru_res->diagnostics = (Z_SRW_diagnostic *)
885 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
886 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
887 yaz_diag_bib1_to_srw(bib1_code),
894 static mp::filter::Base* filter_creator()
896 return new mp::filter::SRUtoZ3950;
900 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
911 * indent-tabs-mode: nil
912 * c-file-style: "stroustrup"
914 * vim: shiftwidth=4 tabstop=8 expandtab