-/*
- * Copyright (c) 2000, Index Data.
+/* This file is part of the yazpp toolkit.
+ * Copyright (C) 1998-2010 Index Data and Mike Taylor
* See the file LICENSE for details.
- *
- * $Log: yaz-z-server.cpp,v $
- * Revision 1.2 2000-09-12 12:09:53 adam
- * More work on high-level server.
- *
- * Revision 1.1 2000/09/08 10:23:42 adam
- * Added skeleton of yaz-z-server.
- *
*/
#include <yaz/log.h>
-#include <yaz-z-server.h>
+#include <yazpp/z-server.h>
+#include <yaz/oid_db.h>
+using namespace yazpp_1;
-Yaz_Z_Server::Yaz_Z_Server(IYaz_PDU_Observable *the_PDU_Observable)
- : Yaz_Z_Assoc(the_PDU_Observable)
+Z_Server::Z_Server(IPDU_Observable *the_PDU_Observable)
+ : Z_Assoc(the_PDU_Observable)
{
+ m_facilities = 0;
}
-Z_Records *Yaz_Z_Server::pack_records (const char *resultSetName,
- int start, int *num,
- Z_RecordComposition *comp,
- int *next, int *pres,
- int *format)
+Z_Server::~Z_Server()
{
-#if 0
- int recno, total_length = 0, toget = *num, dumped_records = 0;
- Z_Records *records =
- (Z_Records *) odr_malloc (odr_encode(), sizeof(*records));
- Z_NamePlusRecordList *reclist =
- (Z_NamePlusRecordList *) odr_malloc (odr_encode(), sizeof(*reclist));
- Z_NamePlusRecord **list =
- (Z_NamePlusRecord **) odr_malloc (odr_encode(), sizeof(*list) * toget);
-
- records->which = Z_Records_DBOSD;
- records->u.databaseOrSurDiagnostics = reclist;
- reclist->num_records = 0;
- reclist->records = list;
- *pres = Z_PRES_SUCCESS;
- *num = 0;
- *next = 0;
+ facility_reset();
+}
- yaz_log(LOG_LOG, "Request to pack %d+%d", start, toget);
- yaz_log(LOG_DEBUG, "pms=%d, mrs=%d", m_preferredMessageSize,
- m_maximumRecordSize);
- for (recno = start; reclist->num_records < toget; recno++)
+void Z_Server::facility_reset ()
+{
+ Z_Server_Facility_Info *p = m_facilities;
+ while (p)
{
- Z_NamePlusRecord *rec =
- (Z_NamePlusRecord *) odr_malloc (odr_encode(), sizeof(*rec));
- rec->databaseName = 0;
- rec->which = Z_NamePlusRecord_databaseRecord;
- rec->u.databaseRecord = 0;
+ Z_Server_Facility_Info *p_next = p->m_next;
- Z_DefaultDiagFormat *diagnostics = (Z_DefaultDiagFormat *)
- odr_malloc (odr_encode(), sizeof(*diagnostics));
- diagnostics->diagnosticSetId = 0;
- diagnostics->condition = 0;
- diagnostics->which = Z_DefaultDiagFormat_v2Addinfo;
-
- recv_Z_record (resultSetName, recno, format, comp, rec, diagnostics);
+ delete [] p->m_name;
+ delete p;
+ p = p_next;
+ }
+ m_facilities = 0;
+}
- bend_fetch_rr freq;
- Z_NamePlusRecord *thisrec;
- int this_length = 0;
- /*
- * we get the number of bytes allocated on the stream before any
- * allocation done by the backend - this should give us a reasonable
- * idea of the total size of the data so far.
- */
- total_length = odr_total(a->encode) - dumped_records;
- freq.errcode = 0;
- freq.errstring = 0;
- freq.basename = 0;
- freq.len = 0;
- freq.record = 0;
- freq.last_in_set = 0;
- freq.setname = setname;
- freq.surrogate_flag = 0;
- freq.number = recno;
- freq.comp = comp;
- freq.request_format = format;
- freq.request_format_raw = oid;
- freq.output_format = format;
- freq.output_format_raw = 0;
- freq.stream = a->encode;
- freq.print = a->print;
- freq.surrogate_flag = 0;
- freq.referenceId = referenceId;
- (*a->init->bend_fetch)(a->backend, &freq);
- /* backend should be able to signal whether error is system-wide
- or only pertaining to current record */
- if (freq.errcode)
- {
- if (!freq.surrogate_flag)
- {
- *pres = Z_PRES_FAILURE;
- return diagrec(a, freq.errcode, freq.errstring);
- }
- reclist->records[reclist->num_records] =
- surrogatediagrec(a, freq.basename, freq.errcode,
- freq.errstring);
- reclist->num_records++;
- *next = freq.last_in_set ? 0 : recno + 1;
- continue;
- }
- if (freq.len >= 0)
- this_length = freq.len;
- else
- this_length = odr_total(a->encode) - total_length;
- yaz_log(LOG_DEBUG, " fetched record, len=%d, total=%d",
- this_length, total_length);
- if (this_length + total_length > a->preferredMessageSize)
- {
- /* record is small enough, really */
- if (this_length <= a->preferredMessageSize)
- {
- yaz_log(LOG_DEBUG, " Dropped last normal-sized record");
- *pres = Z_PRES_PARTIAL_2;
- break;
- }
- /* record can only be fetched by itself */
- if (this_length < a->maximumRecordSize)
- {
- yaz_log(LOG_DEBUG, " Record > prefmsgsz");
- if (toget > 1)
- {
- yaz_log(LOG_DEBUG, " Dropped it");
- reclist->records[reclist->num_records] =
- surrogatediagrec(a, freq.basename, 16, 0);
- reclist->num_records++;
- *next = freq.last_in_set ? 0 : recno + 1;
- dumped_records += this_length;
- continue;
- }
- }
- else /* too big entirely */
- {
- yaz_log(LOG_DEBUG, "Record > maxrcdsz");
- reclist->records[reclist->num_records] =
- surrogatediagrec(a, freq.basename, 17, 0);
- reclist->num_records++;
- *next = freq.last_in_set ? 0 : recno + 1;
- dumped_records += this_length;
- continue;
- }
- }
+void Z_Server::facility_add(IServer_Facility *facility,
+ const char *name)
+{
+ Z_Server_Facility_Info **p = &m_facilities;
+ while (*p)
+ p = &(*p)->m_next;
- if (!(thisrec = (Z_NamePlusRecord *)
- odr_malloc(a->encode, sizeof(*thisrec))))
- return 0;
- if (!(thisrec->databaseName = (char *)odr_malloc(a->encode,
- strlen(freq.basename) + 1)))
- return 0;
- strcpy(thisrec->databaseName, freq.basename);
- thisrec->which = Z_NamePlusRecord_databaseRecord;
+ *p = new Z_Server_Facility_Info;
- if (freq.output_format_raw)
- {
- struct oident *ident = oid_getentbyoid(freq.output_format_raw);
- freq.output_format = ident->value;
- }
- thisrec->u.databaseRecord = z_ext_record(a->encode, freq.output_format,
- freq.record, freq.len);
- if (!thisrec->u.databaseRecord)
- return 0;
- reclist->records[reclist->num_records] = thisrec;
- reclist->num_records++;
- *next = freq.last_in_set ? 0 : recno + 1;
- }
- *num = reclist->num_records;
- return records;
-#endif
- return 0;
+ (*p)->m_next = 0;
+ (*p)->m_name = new char [strlen(name)+1];
+ strcpy ((*p)->m_name, name);
+ (*p)->m_facility = facility;
}
-void Yaz_Z_Server::piggyback (Z_SearchRequest *req,
- Z_SearchResponse *res)
+void Z_Server::recv_GDU (Z_GDU *apdu, int len)
{
- bool_t *sr = (bool_t *)odr_malloc (odr_encode(), sizeof(*sr));
- *sr = 1;
-
- int *next = (int *)odr_malloc (odr_encode(), sizeof(*next));
- *next = 0;
-
- int *toget = (int *)odr_malloc (odr_encode(), sizeof(*toget));
- *toget = 0;
-
- int *presst = (int *)odr_malloc (odr_encode(), sizeof(*presst));
- *presst = 0;
-
- Z_RecordComposition comp, *compp = 0;
- int hits = *res->resultCount;
-
- int *nulint = (int *)odr_malloc (odr_encode(), sizeof(*nulint));
- *nulint = 0;
-
- res->records = 0;
-
- comp.which = Z_RecordComp_simple;
- /* how many records does the user agent want, then? */
- if (hits <= *req->smallSetUpperBound)
- {
- *toget = hits;
- if ((comp.u.simple = req->smallSetElementSetNames))
- compp = ∁
- }
- else if (hits < *req->largeSetLowerBound)
- {
- *toget = *req->mediumSetPresentNumber;
- if (*toget > hits)
- *toget = hits;
- if ((comp.u.simple = req->mediumSetElementSetNames))
- compp = ∁
- }
+ if (apdu->which == Z_GDU_Z3950)
+ recv_Z_PDU(apdu->u.z3950, len);
else
- *toget = 0;
+ delete this;
+}
+
+void Z_Server::recv_Z_PDU (Z_APDU *apdu_request, int len)
+{
+ Z_Server_Facility_Info *f = m_facilities;
- if (*toget && !res->records)
+ if (apdu_request->which == Z_APDU_initRequest)
{
- res->records =
- pack_records(req->resultSetName, 1,
- toget, compp, next, presst,
- req->preferredRecordSyntax);
- if (!res->records)
- return;
- res->numberOfRecordsReturned = toget;
- res->nextResultSetPosition = next;
- res->searchStatus = sr;
- res->resultSetStatus = 0;
- res->presentStatus = presst;
+ Z_APDU *apdu_response = create_Z_PDU(Z_APDU_initResponse);
+
+ Z_InitRequest *req = apdu_request->u.initRequest;
+ Z_InitResponse *resp = apdu_response->u.initResponse;
+
+ if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_1))
+ {
+ ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_1);
+ }
+ if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_2))
+ {
+ ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_2);
+ }
+ if (ODR_MASK_GET(req->protocolVersion, Z_ProtocolVersion_3))
+ {
+ ODR_MASK_SET(resp->protocolVersion, Z_ProtocolVersion_3);
+ }
+ while (f)
+ {
+ f->m_facility->init(this, req, resp);
+ f = f->m_next;
+ }
+ transfer_referenceId(apdu_request, apdu_response);
+ send_Z_PDU(apdu_response, 0);
}
else
{
- if (hits)
- *next = 1;
- res->numberOfRecordsReturned = nulint;
- res->nextResultSetPosition = next;
- res->searchStatus = sr;
- res->resultSetStatus = 0;
- res->presentStatus = 0;
+ f = m_facilities;
+ int taken = 0;
+ while (f)
+ {
+ taken = f->m_facility->recv(this, apdu_request);
+ if (taken)
+ break;
+ f = f->m_next;
+ }
+ if (!taken)
+ {
+ yaz_log (YLOG_WARN, "unhandled request = %d", apdu_request->which);
+ delete this;
+ }
}
}
-void Yaz_Z_Server::recv_Z_PDU (Z_APDU *apdu_request)
-{
- Z_APDU *apdu_response;
- switch (apdu_request->which)
- {
- case Z_APDU_initRequest:
- logf (LOG_LOG, "got InitRequest");
- apdu_response = create_Z_PDU(Z_APDU_initResponse);
- recv_Z_init (apdu_request->u.initRequest,
- apdu_response->u.initResponse);
- send_Z_PDU(apdu_response);
- break;
- case Z_APDU_searchRequest:
- logf (LOG_LOG, "got SearchRequest");
- apdu_response = create_Z_PDU(Z_APDU_searchResponse);
- recv_Z_search (apdu_request->u.searchRequest,
- apdu_response->u.searchResponse);
- if (!apdu_response->u.searchResponse->records)
- {
- piggyback(apdu_request->u.searchRequest,
- apdu_response->u.searchResponse);
- }
- send_Z_PDU(apdu_response);
- break;
- case Z_APDU_presentRequest:
- logf (LOG_LOG, "got PresentRequest");
- apdu_response = create_Z_PDU(Z_APDU_presentResponse);
- recv_Z_present (apdu_request->u.presentRequest,
- apdu_response->u.presentResponse);
- send_Z_PDU(apdu_response);
- break;
- }
+/*
+ * database record.
+ */
+void Z_ServerUtility::create_databaseRecord (
+ ODR odr, Z_NamePlusRecord *rec, const char *dbname, const Odr_oid *format,
+ const void *buf, int len)
+{
+ Odr_oid *oid = odr_oiddup(odr, format);
+ rec->databaseName = dbname ? odr_strdup (odr, dbname) : 0;
+ rec->which = Z_NamePlusRecord_databaseRecord;
+ rec->u.databaseRecord = z_ext_record_oid(odr, oid,
+ (const char *) buf, len);
+}
+
+/*
+ * surrogate diagnostic.
+ */
+void Z_ServerUtility::create_surrogateDiagnostics(
+ ODR odr, Z_NamePlusRecord *rec, const char *dbname,
+ int error, char *const addinfo)
+{
+ Odr_int *err = (Odr_int *)odr_malloc (odr, sizeof(*err));
+ Z_DiagRec *drec = (Z_DiagRec *)odr_malloc (odr, sizeof(*drec));
+ Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
+ odr_malloc (odr, sizeof(*dr));
+
+ yaz_log(YLOG_DEBUG, "SurrogateDiagnotic: %d -- %s", error, addinfo);
+ *err = error;
+ rec->databaseName = dbname ? odr_strdup (odr, dbname) : 0;
+ rec->which = Z_NamePlusRecord_surrogateDiagnostic;
+ rec->u.surrogateDiagnostic = drec;
+ drec->which = Z_DiagRec_defaultFormat;
+ drec->u.defaultFormat = dr;
+ dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
+
+ dr->condition = err;
+ dr->which = Z_DefaultDiagFormat_v2Addinfo;
+ dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
}
+Z_Records *Z_ServerUtility::create_nonSurrogateDiagnostics (
+ ODR odr, int error, const char *addinfo)
+{
+ Z_Records *rec = (Z_Records *)
+ odr_malloc (odr, sizeof(*rec));
+ Odr_int *err = (Odr_int *)
+ odr_malloc (odr, sizeof(*err));
+ Z_DiagRec *drec = (Z_DiagRec *)
+ odr_malloc (odr, sizeof(*drec));
+ Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
+ odr_malloc (odr, sizeof(*dr));
+
+ *err = error;
+ rec->which = Z_Records_NSD;
+ rec->u.nonSurrogateDiagnostic = dr;
+ dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
+
+ dr->condition = err;
+ dr->which = Z_DefaultDiagFormat_v2Addinfo;
+ dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
+ return rec;
+}
+
+void Z_ServerUtility::create_diagnostics (
+ ODR odr, int error, const char *addinfo,
+ Z_DiagRec ***dreca, int *num)
+{
+ Z_DiagRec *drec = (Z_DiagRec *) odr_malloc (odr, sizeof(*drec));
+ Z_DefaultDiagFormat *dr = (Z_DefaultDiagFormat *)
+ odr_malloc (odr, sizeof(*dr));
+
+ *num = 1;
+ *dreca = (Z_DiagRec **) odr_malloc (odr, sizeof(*dreca));
+ (*dreca)[0] = drec;
+
+ drec->which = Z_DiagRec_defaultFormat;
+ drec->u.defaultFormat = dr;
+ dr->diagnosticSetId = odr_oiddup(odr, yaz_oid_diagset_bib_1);
+ dr->condition = odr_intdup (odr, error);
+ dr->which = Z_DefaultDiagFormat_v2Addinfo;
+ dr->u.v2Addinfo = odr_strdup (odr, addinfo ? addinfo : "");
+}
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
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