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
19 // make std::min actually work on Windows
24 #include "package.hpp"
26 #include "gduutil.hpp"
27 #include "sru_util.hpp"
28 #include "filter_sru_to_z3950.hpp"
31 #include <yaz/z-core.h>
33 #include <yaz/pquery.h>
34 #include <yaz/oid_db.h>
37 #include <boost/thread/mutex.hpp>
38 #include <boost/thread/condition.hpp>
46 namespace mp = metaproxy_1;
47 namespace mp_util = metaproxy_1::util;
48 namespace yf = mp::filter;
50 namespace metaproxy_1 {
52 class SRUtoZ3950::Impl {
54 void configure(const xmlNode *xmlnode);
55 void process(metaproxy_1::Package &package);
57 union SRW_query {char * cql; char * xcql; char * pqf;};
58 typedef const int& SRW_query_type;
59 std::map<std::string, const xmlNode *> m_database_explain;
61 typedef std::map<std::string, int> ActiveUrlMap;
64 boost::condition m_cond_url_ready;
65 ActiveUrlMap m_active_urls;
67 void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
68 bool z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
69 const SRW_query &query,
70 SRW_query_type query_type) const;
72 bool z3950_init_request(mp::Package &package,
75 Z_SRW_PDU *sru_pdu_res) const;
77 bool z3950_close_request(mp::Package &package) const;
79 bool z3950_search_request(
82 Z_SRW_PDU *sru_pdu_res,
83 Z_SRW_searchRetrieveRequest const *sr_req,
84 std::string zurl) const;
86 bool z3950_present_request(
89 Z_SRW_PDU *sru_pdu_res,
90 Z_SRW_searchRetrieveRequest const *sr_req) const;
92 bool z3950_scan_request(mp::Package &package,
94 Z_SRW_PDU *sru_pdu_res,
98 bool z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
99 Z_SRW_searchRetrieveResponse *srw_res,
100 Z_Records *records) const;
102 int z3950_to_srw_diag(mp::odr &odr_en,
103 Z_SRW_searchRetrieveResponse *srw_res,
104 Z_DefaultDiagFormat *ddf) const;
111 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
115 yf::SRUtoZ3950::~SRUtoZ3950()
116 { // must have a destructor because of boost::scoped_ptr
119 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only)
121 m_p->configure(xmlnode);
124 void yf::SRUtoZ3950::process(mp::Package &package) const
126 m_p->process(package);
129 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
131 const xmlNode * dbnode;
133 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next){
134 if (dbnode->type != XML_ELEMENT_NODE)
137 std::string database;
138 mp::xml::check_element_mp(dbnode, "database");
140 for (struct _xmlAttr *attr = dbnode->properties;
141 attr; attr = attr->next){
143 mp::xml::check_attribute(attr, "", "name");
144 database = mp::xml::get_text(attr);
146 const xmlNode *explainnode;
147 for (explainnode = dbnode->children;
148 explainnode; explainnode = explainnode->next){
149 if (explainnode->type != XML_ELEMENT_NODE)
154 // assigning explain node to database name - no check yet
155 m_database_explain.insert(std::make_pair(database, explainnode));
160 void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
164 mp::odr odr_de(ODR_DECODE);
165 Z_SRW_PDU *sru_pdu_req = 0;
167 mp::odr odr_en(ODR_ENCODE);
168 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
170 // determine database with the HTTP header information only
171 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
172 std::map<std::string, const xmlNode *>::iterator idbexp;
173 idbexp = m_database_explain.find(sruinfo.database);
175 // assign explain config XML DOM node if database is known
176 const xmlNode *explainnode = 0;
177 if (idbexp != m_database_explain.end()){
178 explainnode = idbexp->second;
180 // just moving package if database is not known
187 // decode SRU request
190 char *stylesheet = 0;
192 // filter acts as sink for non-valid SRU requests
193 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
195 charset, stylesheet)))
199 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
200 sruinfo, explainnode);
201 mp_util::build_sru_response(package, odr_en, soap,
202 sru_pdu_res, charset, stylesheet);
206 metaproxy_1::odr odr;
208 odr.create_HTTP_Response(package.session(),
209 zgdu_req->u.HTTP_Request, 400);
210 package.response() = zgdu_res;
216 Z_SRW_extra_arg *arg;
218 for ( arg = sru_pdu_req->extra_args; arg; arg = arg->next)
219 if (!strcmp(arg->name, "x-target"))
221 zurl = std::string(arg->value);
223 else if (!strcmp(arg->name, "x-max-sockets"))
225 package.origin().set_max_sockets(atoi(arg->value));
229 // filter acts as sink for SRU explain requests
230 if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
232 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
233 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
235 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
236 sruinfo, explainnode, er_req);
239 && sru_pdu_req->which == Z_SRW_searchRetrieve_request
240 && sru_pdu_req->u.request)
242 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
244 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
246 // checking that we have a query
247 ok = mp_util::check_sru_query_exists(package, odr_en,
248 sru_pdu_res, sr_req);
250 if (ok && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
252 ok = z3950_search_request(package, odr_en,
253 sru_pdu_res, sr_req, zurl);
256 && sru_pdu_res->u.response->numberOfRecords
257 && *(sru_pdu_res->u.response->numberOfRecords)
258 && sr_req->maximumRecords
259 && *(sr_req->maximumRecords))
261 ok = z3950_present_request(package, odr_en,
264 z3950_close_request(package);
270 && sru_pdu_req->which == Z_SRW_scan_request
271 && sru_pdu_req->u.scan_request)
273 Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
275 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
277 // we do not do scan at the moment, therefore issuing a diagnostic
278 yaz_add_srw_diagnostic(odr_en,
279 &(sru_pdu_res->u.scan_response->diagnostics),
280 &(sru_pdu_res->u.scan_response->num_diagnostics),
281 YAZ_SRW_UNSUPP_OPERATION, "scan");
283 // to be used when we do scan
284 if (false && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
286 z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
287 z3950_close_request(package);
292 //std::cout << "SRU OPERATION NOT SUPPORTED \n";
293 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
295 // TODO: make nice diagnostic return package
299 // build and send SRU response
300 mp_util::build_sru_response(package, odr_en, soap,
301 sru_pdu_res, charset, stylesheet);
305 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
307 Z_GDU *zgdu_req = package.request().get();
309 // ignoring all non HTTP_Request packages
310 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
315 // only working on HTTP_Request packages now
317 // see if HTTP request is already being executed..
318 // we consider only the SRU - GET case..
319 if (zgdu_req->u.HTTP_Request->content_len == 0)
321 const char *path = zgdu_req->u.HTTP_Request->path;
322 boost::mutex::scoped_lock lock(m_mutex);
325 ActiveUrlMap::iterator it = m_active_urls.find(path);
326 if (it == m_active_urls.end())
328 m_active_urls[path] = 1;
331 yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
332 m_cond_url_ready.wait(lock);
335 sru(package, zgdu_req);
336 if (zgdu_req->u.HTTP_Request->content_len == 0)
338 const char *path = zgdu_req->u.HTTP_Request->path;
339 boost::mutex::scoped_lock lock(m_mutex);
341 ActiveUrlMap::iterator it = m_active_urls.find(path);
343 m_active_urls.erase(it);
344 m_cond_url_ready.notify_all();
350 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
353 Z_SRW_PDU *sru_pdu_res) const
355 // prepare Z3950 package
356 Package z3950_package(package.session(), package.origin());
357 z3950_package.copy_filter(package);
359 // set initRequest APDU
360 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
361 Z_InitRequest *init_req = apdu->u.initRequest;
362 //TODO: add user name in apdu
363 //TODO: add user passwd in apdu
364 //init_req->idAuthentication = org_init->idAuthentication;
365 //init_req->implementationId = "IDxyz";
366 //init_req->implementationName = "NAMExyz";
367 //init_req->implementationVersion = "VERSIONxyz";
369 ODR_MASK_SET(init_req->options, Z_Options_search);
370 ODR_MASK_SET(init_req->options, Z_Options_present);
371 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
372 ODR_MASK_SET(init_req->options, Z_Options_scan);
374 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
375 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
376 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
381 std::list<std::string> dblist;
382 mp_util::split_zurl(zurl, host, dblist);
383 mp_util::set_vhost_otherinfo(&init_req->otherInfo, odr_en, host, 1);
386 z3950_package.request() = apdu;
388 // send Z3950 package
389 z3950_package.move();
391 // dead Z3950 backend detection
392 if (z3950_package.session().is_closed()){
393 yaz_add_srw_diagnostic(odr_en,
394 &(sru_pdu_res->u.response->diagnostics),
395 &(sru_pdu_res->u.response->num_diagnostics),
396 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
400 // check successful initResponse
401 Z_GDU *z3950_gdu = z3950_package.response().get();
403 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
404 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
405 && *z3950_gdu->u.z3950->u.initResponse->result)
408 yaz_add_srw_diagnostic(odr_en,
409 &(sru_pdu_res->u.response->diagnostics),
410 &(sru_pdu_res->u.response->num_diagnostics),
411 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
416 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
418 // prepare and close Z3950 package
419 Package z3950_package(package.session(), package.origin());
420 z3950_package.copy_filter(package);
421 z3950_package.session().close();
424 //mp::odr odr_en(ODR_ENCODE);
425 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
426 //z3950_package.request() = apdu;
428 z3950_package.move();
430 // check successful close response
431 //Z_GDU *z3950_gdu = z3950_package.response().get();
432 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
433 // && z3950_gdu->u.z3950->which == Z_APDU_close)
436 if (z3950_package.session().is_closed()){
442 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
444 Z_SRW_PDU *sru_pdu_res,
445 Z_SRW_searchRetrieveRequest
447 std::string zurl) const
450 assert(sru_pdu_res->u.response);
452 Package z3950_package(package.session(), package.origin());
453 z3950_package.copy_filter(package);
455 //add stuff in z3950 apdu
456 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
457 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
460 if (!mp_util::set_databases_from_zurl(odr_en, zurl,
461 &z_searchRequest->num_databaseNames,
462 &z_searchRequest->databaseNames))
464 z_searchRequest->num_databaseNames = 1;
465 z_searchRequest->databaseNames = (char**)
466 odr_malloc(odr_en, sizeof(char *));
468 if (sr_req->database)
469 z_searchRequest->databaseNames[0]
470 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
472 z_searchRequest->databaseNames[0]
473 = odr_strdup(odr_en, "Default");
477 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
478 z_searchRequest->query = z_query;
480 if (!z3950_build_query(odr_en, z_query,
481 (const SRW_query&)sr_req->query,
484 yaz_add_srw_diagnostic(odr_en,
485 &(sru_pdu_res->u.response->diagnostics),
486 &(sru_pdu_res->u.response->num_diagnostics),
491 z3950_package.request() = apdu;
493 // send Z39.50 package off to backend
494 z3950_package.move();
497 Z_GDU *z3950_gdu = z3950_package.response().get();
499 //TODO: check success condition
500 //int yaz_diag_bib1_to_srw (int bib1_code);
501 //int yaz_diag_srw_to_bib1(int srw_code);
502 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
504 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
505 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
506 || !z3950_gdu->u.z3950->u.searchResponse
507 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
509 yaz_add_srw_diagnostic(odr_en,
510 &(sru_pdu_res->u.response->diagnostics),
511 &(sru_pdu_res->u.response->num_diagnostics),
516 // everything fine, continuing
517 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
519 // checking non surrogate diagnostics in Z3950 search response package
520 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
526 // Finally, roll on and srw'fy number of records
527 sru_pdu_res->u.response->numberOfRecords
528 = (int *) odr_malloc(odr_en, sizeof(int *));
529 *(sru_pdu_res->u.response->numberOfRecords) = *(sr->resultCount);
531 // srw'fy nextRecordPosition
532 //sru_pdu_res->u.response->nextRecordPosition
533 // = (int *) odr_malloc(odr_en, sizeof(int *));
534 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
540 yf::SRUtoZ3950::Impl::z3950_present_request(mp::Package &package,
542 Z_SRW_PDU *sru_pdu_res,
543 Z_SRW_searchRetrieveRequest
547 assert(sru_pdu_res->u.response);
554 if (sr_req->maximumRecords)
555 max_recs = *sr_req->maximumRecords;
556 if (sr_req->startRecord)
557 start = *sr_req->startRecord;
559 // no need to work if nobody wants record ..
563 bool send_z3950_present = true;
565 // recordXPath unsupported.
566 if (sr_req->recordXPath)
568 send_z3950_present = false;
569 yaz_add_srw_diagnostic(odr_en,
570 &(sru_pdu_res->u.response->diagnostics),
571 &(sru_pdu_res->u.response->num_diagnostics),
572 YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
575 // resultSetTTL unsupported.
576 // resultSetIdleTime in response
577 if (sr_req->resultSetTTL)
579 send_z3950_present = false;
580 yaz_add_srw_diagnostic(odr_en,
581 &(sru_pdu_res->u.response->diagnostics),
582 &(sru_pdu_res->u.response->num_diagnostics),
583 YAZ_SRW_RESULT_SETS_UNSUPP, 0);
587 if (sr_req->sort_type != Z_SRW_sort_type_none)
589 send_z3950_present = false;
590 yaz_add_srw_diagnostic(odr_en,
591 &(sru_pdu_res->u.response->diagnostics),
592 &(sru_pdu_res->u.response->num_diagnostics),
593 YAZ_SRW_SORT_UNSUPP, 0);
596 // start record requested negative, or larger than number of records
597 if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
599 send_z3950_present = false;
600 yaz_add_srw_diagnostic(odr_en,
601 &(sru_pdu_res->u.response->diagnostics),
602 &(sru_pdu_res->u.response->num_diagnostics),
603 YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
606 // maximumRecords requested negative
609 send_z3950_present = false;
610 yaz_add_srw_diagnostic(odr_en,
611 &(sru_pdu_res->u.response->diagnostics),
612 &(sru_pdu_res->u.response->num_diagnostics),
613 YAZ_SRW_UNSUPP_PARAMETER_VALUE,
617 // exit on all these above diagnostics
618 if (!send_z3950_present)
621 // now packaging the z3950 present request
622 Package z3950_package(package.session(), package.origin());
623 z3950_package.copy_filter(package);
624 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
626 assert(apdu->u.presentRequest);
628 // z3950'fy start record position
629 *apdu->u.presentRequest->resultSetStartPoint = start;
631 // z3950'fy number of records requested
632 // protect against requesting records out of range
633 *apdu->u.presentRequest->numberOfRecordsRequested
635 *sru_pdu_res->u.response->numberOfRecords - start + 1);
637 // z3950'fy recordPacking
638 int record_packing = Z_SRW_recordPacking_XML;
639 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
640 record_packing = Z_SRW_recordPacking_string;
642 // RecordSyntax will always be XML
643 apdu->u.presentRequest->preferredRecordSyntax
644 = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
646 // z3950'fy record schema
647 if (sr_req->recordSchema)
649 apdu->u.presentRequest->recordComposition
650 = (Z_RecordComposition *)
651 odr_malloc(odr_en, sizeof(Z_RecordComposition));
652 apdu->u.presentRequest->recordComposition->which
653 = Z_RecordComp_simple;
654 apdu->u.presentRequest->recordComposition->u.simple
655 = mp_util::build_esn_from_schema(odr_en,
657 sr_req->recordSchema);
660 // z3950'fy time to live - flagged as diagnostics above
661 //if (sr_req->resultSetTTL)
663 // attaching Z3950 package to filter chain
664 z3950_package.request() = apdu;
666 // sending Z30.50 present request
667 z3950_package.move();
669 //check successful Z3950 present response
670 Z_GDU *z3950_gdu = z3950_package.response().get();
671 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
672 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
673 || !z3950_gdu->u.z3950->u.presentResponse)
676 yaz_add_srw_diagnostic(odr_en,
677 &(sru_pdu_res->u.response->diagnostics),
678 &(sru_pdu_res->u.response->num_diagnostics),
679 YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
684 // everything fine, continuing
686 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
687 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
690 // checking non surrogate diagnostics in Z3950 present response package
691 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
697 // copy all records if existing
698 if (pr->records && pr->records->which == Z_Records_DBOSD)
700 // srw'fy number of returned records
702 = pr->records->u.databaseOrSurDiagnostics->num_records;
705 = (Z_SRW_record *) odr_malloc(odr_en,
707 * sizeof(Z_SRW_record));
710 // srw'fy nextRecordPosition
711 // next position never zero or behind the last z3950 record
712 if (pr->nextResultSetPosition
713 && *(pr->nextResultSetPosition) > 0
714 && *(pr->nextResultSetPosition)
715 <= *(sru_pdu_res->u.response->numberOfRecords))
716 sru_res->nextRecordPosition
717 = odr_intdup(odr_en, *(pr->nextResultSetPosition));
719 // inserting all records
720 for (int i = 0; i < sru_res->num_records; i++)
722 int position = i + *apdu->u.presentRequest->resultSetStartPoint;
723 Z_NamePlusRecord *npr
724 = pr->records->u.databaseOrSurDiagnostics->records[i];
726 sru_res->records[i].recordPacking = record_packing;
728 if (npr->which == Z_NamePlusRecord_databaseRecord &&
729 npr->u.databaseRecord->direct_reference
730 && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
733 // got XML record back
734 Z_External *r = npr->u.databaseRecord;
735 sru_res->records[i].recordPosition =
736 odr_intdup(odr_en, position);
737 sru_res->records[i].recordSchema = sr_req->recordSchema;
738 sru_res->records[i].recordData_buf
739 = odr_strdupn(odr_en,
740 (const char *)r->u.octet_aligned->buf,
741 r->u.octet_aligned->len);
742 sru_res->records[i].recordData_len
743 = r->u.octet_aligned->len;
747 // not XML or no database record at all
748 yaz_mk_sru_surrogate(
749 odr_en, sru_res->records + i, position,
750 YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
759 yf::SRUtoZ3950::Impl::z3950_scan_request(mp::Package &package,
761 Z_SRW_PDU *sru_pdu_res,
762 Z_SRW_scanRequest const *sr_req) const
764 assert(sru_pdu_res->u.scan_response);
766 Package z3950_package(package.session(), package.origin());
767 z3950_package.copy_filter(package);
768 //mp::odr odr_en(ODR_ENCODE);
769 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_scanRequest);
771 //TODO: add stuff in apdu
772 Z_ScanRequest *z_scanRequest = apdu->u.scanRequest;
774 // database repackaging
775 z_scanRequest->num_databaseNames = 1;
776 z_scanRequest->databaseNames = (char**)
777 odr_malloc(odr_en, sizeof(char *));
778 if (sr_req->database)
779 z_scanRequest->databaseNames[0]
780 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
782 z_scanRequest->databaseNames[0]
783 = odr_strdup(odr_en, "Default");
787 // CQL or XCQL scan is not possible in Z3950, flagging a diagnostic
788 if (sr_req->query_type != Z_SRW_query_type_pqf)
790 //send_to_srw_client_error(7, "query");
794 // PQF query repackaging
795 // need to use Z_AttributesPlusTerm structure, not Z_Query
796 // this can be digget out of a
797 // Z_query->type1(Z_RPNQuery)->RPNStructure(Z_RPNStructure)
798 // ->u.simple(Z_Operand)->u.attributesPlusTerm(Z_AttributesPlusTerm )
800 //Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
801 //z_searchRequest->query = z_query;
803 //if (!z3950_build_query(odr_en, z_query,
804 // (const SRW_query&)sr_req->query,
805 // sr_req->query_type))
807 //send_to_srw_client_error(7, "query");
813 z3950_package.request() = apdu;
814 std::cout << "z3950_scan_request " << *apdu << "\n";
816 z3950_package.move();
817 //TODO: check success condition
822 bool yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
823 const SRW_query &query,
824 SRW_query_type query_type) const
826 if (query_type == Z_SRW_query_type_cql)
828 Z_External *ext = (Z_External *)
829 odr_malloc(odr_en, sizeof(*ext));
830 ext->direct_reference =
831 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
832 ext->indirect_reference = 0;
834 ext->which = Z_External_CQL;
835 ext->u.cql = const_cast<char *>(query.cql);
837 z_query->which = Z_Query_type_104;
838 z_query->u.type_104 = ext;
842 if (query_type == Z_SRW_query_type_pqf)
844 Z_RPNQuery *RPNquery;
845 YAZ_PQF_Parser pqf_parser;
847 pqf_parser = yaz_pqf_create ();
849 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, query.pqf);
852 std::cout << "TODO: Handeling of bad PQF\n";
853 std::cout << "TODO: Diagnostic to be send\n";
855 z_query->which = Z_Query_type_1;
856 z_query->u.type_1 = RPNquery;
858 yaz_pqf_destroy(pqf_parser);
866 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
867 Z_SRW_searchRetrieveResponse
869 Z_Records *records) const
871 // checking non surrogate diagnostics in Z3950 present response package
873 && records->which == Z_Records_NSD
874 && records->u.nonSurrogateDiagnostic)
876 z3950_to_srw_diag(odr_en, sru_res,
877 records->u.nonSurrogateDiagnostic);
885 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
886 Z_SRW_searchRetrieveResponse *sru_res,
887 Z_DefaultDiagFormat *ddf) const
889 int bib1_code = *ddf->condition;
890 sru_res->num_diagnostics = 1;
891 sru_res->diagnostics = (Z_SRW_diagnostic *)
892 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
893 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
894 yaz_diag_bib1_to_srw(bib1_code),
901 static mp::filter::Base* filter_creator()
903 return new mp::filter::SRUtoZ3950;
907 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
918 * indent-tabs-mode: nil
919 * c-file-style: "stroustrup"
921 * vim: shiftwidth=4 tabstop=8 expandtab