1 /* $Id: filter_sru_to_z3950.cpp,v 1.33 2007-04-13 09:57:51 adam Exp $
2 Copyright (c) 2005-2007, Index Data.
4 See the LICENSE file for details
11 #include "gduutil.hpp"
12 #include "sru_util.hpp"
13 #include "filter_sru_to_z3950.hpp"
16 #include <yaz/z-core.h>
18 #include <yaz/pquery.h>
19 #include <yaz/oid_db.h>
21 #include <boost/thread/mutex.hpp>
29 namespace mp = metaproxy_1;
30 namespace mp_util = metaproxy_1::util;
31 namespace yf = mp::filter;
34 namespace metaproxy_1 {
36 class SRUtoZ3950::Impl {
38 void configure(const xmlNode *xmlnode);
39 void process(metaproxy_1::Package &package);
41 union SRW_query {char * cql; char * xcql; char * pqf;};
42 typedef const int& SRW_query_type;
43 std::map<std::string, const xmlNode *> m_database_explain;
46 bool z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
47 const SRW_query &query,
48 SRW_query_type query_type) const;
50 bool z3950_init_request(mp::Package &package,
52 Z_SRW_PDU *sru_pdu_res,
54 &database = "Default") const;
56 bool z3950_close_request(mp::Package &package) const;
58 bool z3950_search_request(mp::Package &package,
60 Z_SRW_PDU *sru_pdu_res,
61 Z_SRW_searchRetrieveRequest
64 bool z3950_present_request(mp::Package &package,
66 Z_SRW_PDU *sru_pdu_res,
67 Z_SRW_searchRetrieveRequest
70 bool z3950_scan_request(mp::Package &package,
72 Z_SRW_PDU *sru_pdu_res,
76 bool z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
77 Z_SRW_searchRetrieveResponse *srw_res,
78 Z_Records *records) const;
80 int z3950_to_srw_diag(mp::odr &odr_en,
81 Z_SRW_searchRetrieveResponse *srw_res,
82 Z_DefaultDiagFormat *ddf) const;
87 yf::SRUtoZ3950::SRUtoZ3950() : m_p(new Impl)
91 yf::SRUtoZ3950::~SRUtoZ3950()
92 { // must have a destructor because of boost::scoped_ptr
95 void yf::SRUtoZ3950::configure(const xmlNode *xmlnode)
97 m_p->configure(xmlnode);
100 void yf::SRUtoZ3950::process(mp::Package &package) const
102 m_p->process(package);
105 void yf::SRUtoZ3950::Impl::configure(const xmlNode *confignode)
107 const xmlNode * dbnode;
109 for (dbnode = confignode->children; dbnode; dbnode = dbnode->next){
110 if (dbnode->type != XML_ELEMENT_NODE)
113 std::string database;
114 mp::xml::check_element_mp(dbnode, "database");
116 for (struct _xmlAttr *attr = dbnode->properties;
117 attr; attr = attr->next){
119 mp::xml::check_attribute(attr, "", "name");
120 database = mp::xml::get_text(attr);
122 const xmlNode *explainnode;
123 for (explainnode = dbnode->children;
124 explainnode; explainnode = explainnode->next){
125 if (explainnode->type != XML_ELEMENT_NODE)
130 // assigning explain node to database name - no check yet
131 m_database_explain.insert(std::make_pair(database, explainnode));
136 void yf::SRUtoZ3950::Impl::process(mp::Package &package)
138 Z_GDU *zgdu_req = package.request().get();
140 // ignoring all non HTTP_Request packages
141 if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
146 // only working on HTTP_Request packages now
150 mp::odr odr_de(ODR_DECODE);
151 Z_SRW_PDU *sru_pdu_req = 0;
153 mp::odr odr_en(ODR_ENCODE);
154 Z_SRW_PDU *sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
156 // determine database with the HTTP header information only
157 mp_util::SRUServerInfo sruinfo = mp_util::get_sru_server_info(package);
158 std::map<std::string, const xmlNode *>::iterator idbexp;
159 idbexp = m_database_explain.find(sruinfo.database);
161 // assign explain config XML DOM node if database is known
162 const xmlNode *explainnode = 0;
163 if (idbexp != m_database_explain.end()){
164 explainnode = idbexp->second;
166 // just moving package if database is not known
173 // decode SRU request
176 char *stylesheet = 0;
178 // filter acts as sink for non-valid SRU requests
179 if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
181 charset, stylesheet)))
185 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
186 sruinfo, explainnode);
187 mp_util::build_sru_response(package, odr_en, soap,
188 sru_pdu_res, charset, stylesheet);
192 metaproxy_1::odr odr;
194 odr.create_HTTP_Response(package.session(),
195 zgdu_req->u.HTTP_Request, 400);
196 package.response() = zgdu_res;
201 // filter acts as sink for SRU explain requests
202 if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
204 Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
205 //mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
207 mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
208 sruinfo, explainnode, er_req);
211 && sru_pdu_req->which == Z_SRW_searchRetrieve_request
212 && sru_pdu_req->u.request)
214 Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
216 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_searchRetrieve_response);
218 // checking that we have a query
219 ok = mp_util::check_sru_query_exists(package, odr_en,
220 sru_pdu_res, sr_req);
222 if (ok && z3950_init_request(package, odr_en, sru_pdu_res))
225 ok = z3950_search_request(package, odr_en,
226 sru_pdu_res, sr_req);
229 && sru_pdu_res->u.response->numberOfRecords
230 && *(sru_pdu_res->u.response->numberOfRecords)
231 && sr_req->maximumRecords
232 && *(sr_req->maximumRecords))
234 ok = z3950_present_request(package, odr_en,
237 z3950_close_request(package);
244 && sru_pdu_req->which == Z_SRW_scan_request
245 && sru_pdu_req->u.scan_request)
247 Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
249 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
251 // we do not do scan at the moment, therefore issuing a diagnostic
252 yaz_add_srw_diagnostic(odr_en,
253 &(sru_pdu_res->u.scan_response->diagnostics),
254 &(sru_pdu_res->u.scan_response->num_diagnostics),
257 // to be used when we do scan
258 if (false && z3950_init_request(package, odr_en, sru_pdu_res))
260 z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
261 z3950_close_request(package);
266 //std::cout << "SRU OPERATION NOT SUPPORTED \n";
267 sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
269 // TODO: make nice diagnostic return package
273 // build and send SRU response
274 mp_util::build_sru_response(package, odr_en, soap,
275 sru_pdu_res, charset, stylesheet);
281 yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
283 Z_SRW_PDU *sru_pdu_res,
284 const std::string &database) const
286 // prepare Z3950 package
287 Package z3950_package(package.session(), package.origin());
288 z3950_package.copy_filter(package);
290 // set initRequest APDU
291 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
292 Z_InitRequest *init_req = apdu->u.initRequest;
293 //TODO: add user name in apdu
294 //TODO: add user passwd in apdu
295 //init_req->idAuthentication = org_init->idAuthentication;
296 //init_req->implementationId = "IDxyz";
297 //init_req->implementationName = "NAMExyz";
298 //init_req->implementationVersion = "VERSIONxyz";
300 ODR_MASK_SET(init_req->options, Z_Options_search);
301 ODR_MASK_SET(init_req->options, Z_Options_present);
302 ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
303 ODR_MASK_SET(init_req->options, Z_Options_scan);
305 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_1);
306 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_2);
307 ODR_MASK_SET(init_req->protocolVersion, Z_ProtocolVersion_3);
309 z3950_package.request() = apdu;
311 // send Z3950 package
312 z3950_package.move();
314 // dead Z3950 backend detection
315 if (z3950_package.session().is_closed()){
316 yaz_add_srw_diagnostic(odr_en,
317 &(sru_pdu_res->u.response->diagnostics),
318 &(sru_pdu_res->u.response->num_diagnostics),
323 // check successful initResponse
324 Z_GDU *z3950_gdu = z3950_package.response().get();
326 if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
327 && z3950_gdu->u.z3950->which == Z_APDU_initResponse
328 && *z3950_gdu->u.z3950->u.initResponse->result)
331 yaz_add_srw_diagnostic(odr_en,
332 &(sru_pdu_res->u.response->diagnostics),
333 &(sru_pdu_res->u.response->num_diagnostics),
339 yf::SRUtoZ3950::Impl::z3950_close_request(mp::Package &package) const
341 // prepare and close Z3950 package
342 Package z3950_package(package.session(), package.origin());
343 z3950_package.copy_filter(package);
344 z3950_package.session().close();
347 //mp::odr odr_en(ODR_ENCODE);
348 //Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_close);
349 //z3950_package.request() = apdu;
351 z3950_package.move();
353 // check successful close response
354 //Z_GDU *z3950_gdu = z3950_package.response().get();
355 //if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
356 // && z3950_gdu->u.z3950->which == Z_APDU_close)
359 if (z3950_package.session().is_closed()){
365 bool yf::SRUtoZ3950::Impl::z3950_search_request(mp::Package &package,
367 Z_SRW_PDU *sru_pdu_res,
368 Z_SRW_searchRetrieveRequest
372 assert(sru_pdu_res->u.response);
374 Package z3950_package(package.session(), package.origin());
375 z3950_package.copy_filter(package);
377 //add stuff in z3950 apdu
378 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_searchRequest);
379 Z_SearchRequest *z_searchRequest = apdu->u.searchRequest;
382 z_searchRequest->num_databaseNames = 1;
383 z_searchRequest->databaseNames = (char**)
384 odr_malloc(odr_en, sizeof(char *));
386 if (sr_req->database)
387 z_searchRequest->databaseNames[0]
388 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
390 z_searchRequest->databaseNames[0]
391 = odr_strdup(odr_en, "Default");
395 Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
396 z_searchRequest->query = z_query;
398 if (!z3950_build_query(odr_en, z_query,
399 (const SRW_query&)sr_req->query,
402 yaz_add_srw_diagnostic(odr_en,
403 &(sru_pdu_res->u.response->diagnostics),
404 &(sru_pdu_res->u.response->num_diagnostics),
409 z3950_package.request() = apdu;
411 // send Z39.50 package off to backend
412 z3950_package.move();
415 Z_GDU *z3950_gdu = z3950_package.response().get();
417 //TODO: check success condition
418 //int yaz_diag_bib1_to_srw (int bib1_code);
419 //int yaz_diag_srw_to_bib1(int srw_code);
420 //Se kode i src/seshigh.c (srw_bend_search, srw_bend_init).
422 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
423 || z3950_gdu->u.z3950->which != Z_APDU_searchResponse
424 || !z3950_gdu->u.z3950->u.searchResponse
425 || !z3950_gdu->u.z3950->u.searchResponse->searchStatus)
427 yaz_add_srw_diagnostic(odr_en,
428 &(sru_pdu_res->u.response->diagnostics),
429 &(sru_pdu_res->u.response->num_diagnostics),
434 // everything fine, continuing
435 Z_SearchResponse *sr = z3950_gdu->u.z3950->u.searchResponse;
437 // checking non surrogate diagnostics in Z3950 search response package
438 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
444 // Finally, roll on and srw'fy number of records
445 sru_pdu_res->u.response->numberOfRecords
446 = (int *) odr_malloc(odr_en, sizeof(int *));
447 *(sru_pdu_res->u.response->numberOfRecords) = *(sr->resultCount);
449 // srw'fy nextRecordPosition
450 //sru_pdu_res->u.response->nextRecordPosition
451 // = (int *) odr_malloc(odr_en, sizeof(int *));
452 //*(sru_pdu_res->u.response->nextRecordPosition) = 1;
458 yf::SRUtoZ3950::Impl::z3950_present_request(mp::Package &package,
460 Z_SRW_PDU *sru_pdu_res,
461 Z_SRW_searchRetrieveRequest
465 assert(sru_pdu_res->u.response);
471 // no need to work if nobody wants record ..
472 if (!(sr_req->maximumRecords) || 0 == *(sr_req->maximumRecords))
475 bool send_z3950_present = true;
477 // recordXPath unsupported.
478 if (sr_req->recordXPath)
480 send_z3950_present = false;
481 yaz_add_srw_diagnostic(odr_en,
482 &(sru_pdu_res->u.response->diagnostics),
483 &(sru_pdu_res->u.response->num_diagnostics),
487 // resultSetTTL unsupported.
488 // resultSetIdleTime in response
489 if (sr_req->resultSetTTL)
491 send_z3950_present = false;
492 yaz_add_srw_diagnostic(odr_en,
493 &(sru_pdu_res->u.response->diagnostics),
494 &(sru_pdu_res->u.response->num_diagnostics),
499 if (sr_req->sort_type != Z_SRW_sort_type_none)
501 send_z3950_present = false;
502 yaz_add_srw_diagnostic(odr_en,
503 &(sru_pdu_res->u.response->diagnostics),
504 &(sru_pdu_res->u.response->num_diagnostics),
508 // start record requested negative, or larger than number of records
509 if (sr_req->startRecord
511 ((*(sr_req->startRecord) < 0) // negative
513 (sru_pdu_res->u.response->numberOfRecords //out of range
514 && *(sr_req->startRecord)
515 > *(sru_pdu_res->u.response->numberOfRecords))
518 send_z3950_present = false;
519 yaz_add_srw_diagnostic(odr_en,
520 &(sru_pdu_res->u.response->diagnostics),
521 &(sru_pdu_res->u.response->num_diagnostics),
525 // maximumRecords requested negative
526 if (sr_req->maximumRecords
527 && *(sr_req->maximumRecords) < 0)
530 send_z3950_present = false;
531 yaz_add_srw_diagnostic(odr_en,
532 &(sru_pdu_res->u.response->diagnostics),
533 &(sru_pdu_res->u.response->num_diagnostics),
534 6, "maximumRecords");
537 // exit on all these above diagnostics
538 if (!send_z3950_present)
541 // now packaging the z3950 present request
542 Package z3950_package(package.session(), package.origin());
543 z3950_package.copy_filter(package);
544 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
546 assert(apdu->u.presentRequest);
548 // z3950'fy start record position
549 if (sr_req->startRecord)
550 *(apdu->u.presentRequest->resultSetStartPoint)
551 = *(sr_req->startRecord);
553 *(apdu->u.presentRequest->resultSetStartPoint) = 1;
555 // z3950'fy number of records requested
556 // protect against requesting records out of range
557 if (sr_req->maximumRecords)
558 *(apdu->u.presentRequest->numberOfRecordsRequested)
559 = std::min(*(sr_req->maximumRecords),
560 *(sru_pdu_res->u.response->numberOfRecords)
561 - *(apdu->u.presentRequest->resultSetStartPoint)
564 // z3950'fy recordPacking
565 int record_packing = Z_SRW_recordPacking_XML;
566 if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
567 record_packing = Z_SRW_recordPacking_string;
569 // RecordSyntax will always be XML
570 apdu->u.presentRequest->preferredRecordSyntax
571 = yaz_string_to_oid_odr(yaz_oid_std(), CLASS_RECSYN, OID_STR_XML,
574 // z3950'fy record schema
575 if (sr_req->recordSchema)
577 apdu->u.presentRequest->recordComposition
578 = (Z_RecordComposition *)
579 odr_malloc(odr_en, sizeof(Z_RecordComposition));
580 apdu->u.presentRequest->recordComposition->which
581 = Z_RecordComp_simple;
582 apdu->u.presentRequest->recordComposition->u.simple
583 = mp_util::build_esn_from_schema(odr_en,
584 (const char *) sr_req->recordSchema);
587 // z3950'fy time to live - flagged as diagnostics above
588 //if (sr_req->resultSetTTL)
590 // attaching Z3950 package to filter chain
591 z3950_package.request() = apdu;
593 // sending Z30.50 present request
594 z3950_package.move();
596 //check successful Z3950 present response
597 Z_GDU *z3950_gdu = z3950_package.response().get();
598 if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
599 || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
600 || !z3950_gdu->u.z3950->u.presentResponse)
603 yaz_add_srw_diagnostic(odr_en,
604 &(sru_pdu_res->u.response->diagnostics),
605 &(sru_pdu_res->u.response->num_diagnostics),
611 // everything fine, continuing
613 Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
614 Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
617 // checking non surrogate diagnostics in Z3950 present response package
618 if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
624 // copy all records if existing
625 if (pr->records && pr->records->which == Z_Records_DBOSD)
627 // srw'fy number of returned records
629 = pr->records->u.databaseOrSurDiagnostics->num_records;
632 = (Z_SRW_record *) odr_malloc(odr_en,
634 * sizeof(Z_SRW_record));
637 // srw'fy nextRecordPosition
638 // next position never zero or behind the last z3950 record
639 if (pr->nextResultSetPosition
640 && *(pr->nextResultSetPosition) > 0
641 && *(pr->nextResultSetPosition)
642 <= *(sru_pdu_res->u.response->numberOfRecords))
643 sru_res->nextRecordPosition
644 = odr_intdup(odr_en, *(pr->nextResultSetPosition));
646 // inserting all records
647 for (int i = 0; i < sru_res->num_records; i++)
649 Z_NamePlusRecord *npr
650 = pr->records->u.databaseOrSurDiagnostics->records[i];
652 sru_res->records[i].recordPosition
654 i + *(apdu->u.presentRequest->resultSetStartPoint));
656 sru_res->records[i].recordPacking = record_packing;
658 if (npr->which != Z_NamePlusRecord_databaseRecord)
660 sru_res->records[i].recordSchema = "diagnostic";
661 sru_res->records[i].recordData_buf = "67";
662 sru_res->records[i].recordData_len = 2;
666 Z_External *r = npr->u.databaseRecord;
667 const int *xml_oid = yaz_string_to_oid(yaz_oid_std(),
670 if (xml_oid && r->direct_reference
671 && !oid_oidcmp(r->direct_reference, xml_oid))
673 sru_res->records[i].recordSchema = "dc";
674 sru_res->records[i].recordData_buf
675 = odr_strdupn(odr_en,
676 (const char *)r->u.octet_aligned->buf,
677 r->u.octet_aligned->len);
678 sru_res->records[i].recordData_len
679 = r->u.octet_aligned->len;
683 sru_res->records[i].recordSchema = "diagnostic";
684 sru_res->records[i].recordData_buf = "67";
685 sru_res->records[i].recordData_len = 2;
695 yf::SRUtoZ3950::Impl::z3950_scan_request(mp::Package &package,
697 Z_SRW_PDU *sru_pdu_res,
698 Z_SRW_scanRequest const *sr_req) const
700 assert(sru_pdu_res->u.scan_response);
702 Package z3950_package(package.session(), package.origin());
703 z3950_package.copy_filter(package);
704 //mp::odr odr_en(ODR_ENCODE);
705 Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_scanRequest);
707 //TODO: add stuff in apdu
708 Z_ScanRequest *z_scanRequest = apdu->u.scanRequest;
710 // database repackaging
711 z_scanRequest->num_databaseNames = 1;
712 z_scanRequest->databaseNames = (char**)
713 odr_malloc(odr_en, sizeof(char *));
714 if (sr_req->database)
715 z_scanRequest->databaseNames[0]
716 = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
718 z_scanRequest->databaseNames[0]
719 = odr_strdup(odr_en, "Default");
723 // CQL or XCQL scan is not possible in Z3950, flagging a diagnostic
724 if (sr_req->query_type != Z_SRW_query_type_pqf)
726 //send_to_srw_client_error(7, "query");
730 // PQF query repackaging
731 // need to use Z_AttributesPlusTerm structure, not Z_Query
732 // this can be digget out of a
733 // Z_query->type1(Z_RPNQuery)->RPNStructure(Z_RPNStructure)
734 // ->u.simple(Z_Operand)->u.attributesPlusTerm(Z_AttributesPlusTerm )
736 //Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
737 //z_searchRequest->query = z_query;
739 //if (!z3950_build_query(odr_en, z_query,
740 // (const SRW_query&)sr_req->query,
741 // sr_req->query_type))
743 //send_to_srw_client_error(7, "query");
749 z3950_package.request() = apdu;
750 std::cout << "z3950_scan_request " << *apdu << "\n";
752 z3950_package.move();
753 //TODO: check success condition
758 bool yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
759 const SRW_query &query,
760 SRW_query_type query_type) const
762 if (query_type == Z_SRW_query_type_cql)
764 Z_External *ext = (Z_External *)
765 odr_malloc(odr_en, sizeof(*ext));
766 ext->direct_reference =
767 odr_getoidbystr(odr_en, "1.2.840.10003.16.2");
768 ext->indirect_reference = 0;
770 ext->which = Z_External_CQL;
771 ext->u.cql = const_cast<char *>(query.cql);
773 z_query->which = Z_Query_type_104;
774 z_query->u.type_104 = ext;
778 if (query_type == Z_SRW_query_type_pqf)
780 Z_RPNQuery *RPNquery;
781 YAZ_PQF_Parser pqf_parser;
783 pqf_parser = yaz_pqf_create ();
785 RPNquery = yaz_pqf_parse (pqf_parser, odr_en, query.pqf);
788 std::cout << "TODO: Handeling of bad PQF\n";
789 std::cout << "TODO: Diagnostic to be send\n";
791 z_query->which = Z_Query_type_1;
792 z_query->u.type_1 = RPNquery;
794 yaz_pqf_destroy(pqf_parser);
802 yf::SRUtoZ3950::Impl::z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
803 Z_SRW_searchRetrieveResponse
805 Z_Records *records) const
807 // checking non surrogate diagnostics in Z3950 present response package
809 && records->which == Z_Records_NSD
810 && records->u.nonSurrogateDiagnostic)
812 z3950_to_srw_diag(odr_en, sru_res,
813 records->u.nonSurrogateDiagnostic);
821 yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
822 Z_SRW_searchRetrieveResponse *sru_res,
823 Z_DefaultDiagFormat *ddf) const
825 int bib1_code = *ddf->condition;
826 sru_res->num_diagnostics = 1;
827 sru_res->diagnostics = (Z_SRW_diagnostic *)
828 odr_malloc(odr_en, sizeof(*sru_res->diagnostics));
829 yaz_mk_std_diagnostic(odr_en, sru_res->diagnostics,
830 yaz_diag_bib1_to_srw(bib1_code),
837 static mp::filter::Base* filter_creator()
839 return new mp::filter::SRUtoZ3950;
843 struct metaproxy_1_filter_struct metaproxy_1_filter_sru_to_z3950 = {
854 * indent-tabs-mode: nil
855 * c-file-style: "stroustrup"
857 * vim: shiftwidth=4 tabstop=8 expandtab