* Copyright (c) 1998-2003, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-proxy.cpp,v 1.43 2003-06-25 21:57:45 adam Exp $
+ * $Id: yaz-proxy.cpp,v 1.44 2003-07-18 13:27:20 adam Exp $
*/
#include <assert.h>
c->m_init_flag = 0;
c->m_last_ok = 0;
+ c->m_cache.clear();
c->m_last_resultCount = 0;
c->m_sr_transform = 0;
c->m_waiting = 0;
+ c->m_resultSetStartPoint = 0;
c->timeout(m_idletime);
}
c->m_seqno = parent->m_seqno;
c->m_init_flag = 0;
c->m_last_resultCount = 0;
c->m_last_ok = 0;
+ c->m_cache.clear();
c->m_sr_transform = 0;
c->m_waiting = 0;
+ c->m_resultSetStartPoint = 0;
c->timeout(20);
(parent->m_seqno)++;
Z_APDU *Yaz_Proxy::result_set_optimize(Z_APDU *apdu)
{
- if (apdu->which != Z_APDU_searchRequest)
- return apdu;
if (*m_parent->m_optimize == '0')
return apdu; // don't optimize result sets..
+ if (apdu->which == Z_APDU_presentRequest)
+ {
+ Z_PresentRequest *pr = apdu->u.presentRequest;
+ Z_NamePlusRecordList *npr;
+ int toget = *pr->numberOfRecordsRequested;
+ int start = *pr->resultSetStartPoint;
+
+ if (!strcmp(m_client->m_last_resultSetId, pr->resultSetId))
+ {
+ if (m_client->m_cache.lookup (odr_encode(), &npr, start, toget,
+ pr->preferredRecordSyntax))
+ {
+ yaz_log (LOG_LOG, "Returned cache records for present request");
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentResponse);
+ new_apdu->u.presentResponse->referenceId = pr->referenceId;
+
+ new_apdu->u.presentResponse->numberOfRecordsReturned
+ = odr_intdup(odr_encode(), toget);
+
+ new_apdu->u.presentResponse->records = (Z_Records*)
+ odr_malloc(odr_encode(), sizeof(Z_Records));
+ new_apdu->u.presentResponse->records->which = Z_Records_DBOSD;
+ new_apdu->u.presentResponse->records->u.databaseOrSurDiagnostics = npr;
+ new_apdu->u.presentResponse->nextResultSetPosition =
+ odr_intdup(odr_encode(), start+toget);
+ send_Z_PDU(new_apdu);
+ return 0;
+ }
+ }
+ }
+
+ if (apdu->which != Z_APDU_searchRequest)
+ return apdu;
Z_SearchRequest *sr = apdu->u.searchRequest;
Yaz_Z_Query *this_query = new Yaz_Z_Query;
Yaz_Z_Databases this_databases;
if (m_client->m_last_resultCount > *sr->smallSetUpperBound &&
m_client->m_last_resultCount < *sr->largeSetLowerBound)
{
- // medium Set
- // send present request (medium size)
- yaz_log (LOG_LOG, "Optimizing search for medium set");
- Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
- Z_PresentRequest *pr = new_apdu->u.presentRequest;
- pr->referenceId = sr->referenceId;
- pr->resultSetId = sr->resultSetName;
- pr->preferredRecordSyntax = sr->preferredRecordSyntax;
- if (*sr->mediumSetPresentNumber < m_client->m_last_resultCount)
- *pr->numberOfRecordsRequested = *sr->mediumSetPresentNumber;
- else
- *pr->numberOfRecordsRequested = m_client->m_last_resultCount;
- if (sr->mediumSetElementSetNames)
+ Z_NamePlusRecordList *npr;
+ int toget = *sr->mediumSetPresentNumber;
+
+ if (toget > m_client->m_last_resultCount)
+ toget = m_client->m_last_resultCount;
+
+ if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
+ sr->preferredRecordSyntax))
{
- pr->recordComposition = (Z_RecordComposition *)
- odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
- pr->recordComposition->which = Z_RecordComp_simple;
- pr->recordComposition->u.simple = sr->mediumSetElementSetNames;
+ yaz_log (LOG_LOG, "Returned cache records for medium set");
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
+ new_apdu->u.searchResponse->referenceId = sr->referenceId;
+ new_apdu->u.searchResponse->resultCount =
+ &m_client->m_last_resultCount;
+
+ new_apdu->u.searchResponse->numberOfRecordsReturned
+ = odr_intdup(odr_encode(), toget);
+
+ new_apdu->u.searchResponse->records = (Z_Records*)
+ odr_malloc(odr_encode(), sizeof(Z_Records));
+ new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
+ new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
+ new_apdu->u.searchResponse->nextResultSetPosition =
+ odr_intdup(odr_encode(), toget+1);
+ send_Z_PDU(new_apdu);
+ return 0;
+ }
+ else
+ {
+ // medium Set
+ // send present request (medium size)
+ yaz_log (LOG_LOG, "Optimizing search for medium set");
+
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
+ Z_PresentRequest *pr = new_apdu->u.presentRequest;
+ pr->referenceId = sr->referenceId;
+ pr->resultSetId = sr->resultSetName;
+ pr->preferredRecordSyntax = sr->preferredRecordSyntax;
+ *pr->numberOfRecordsRequested = toget;
+ if (sr->mediumSetElementSetNames)
+ {
+ pr->recordComposition = (Z_RecordComposition *)
+ odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
+ pr->recordComposition->which = Z_RecordComp_simple;
+ pr->recordComposition->u.simple =
+ sr->mediumSetElementSetNames;
+ }
+ m_client->m_sr_transform = 1;
+ return new_apdu;
}
- m_client->m_sr_transform = 1;
- return new_apdu;
}
else if (m_client->m_last_resultCount >= *sr->largeSetLowerBound ||
m_client->m_last_resultCount <= 0)
}
else
{
+ Z_NamePlusRecordList *npr;
+ int toget = m_client->m_last_resultCount;
// small set
// send a present request (small set)
- yaz_log (LOG_LOG, "Optimizing search for small set");
- Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
- Z_PresentRequest *pr = new_apdu->u.presentRequest;
- pr->referenceId = sr->referenceId;
- pr->resultSetId = sr->resultSetName;
- pr->preferredRecordSyntax = sr->preferredRecordSyntax;
- *pr->numberOfRecordsRequested = m_client->m_last_resultCount;
- if (sr->smallSetElementSetNames)
+
+ if (m_client->m_cache.lookup (odr_encode(), &npr, 1, toget,
+ sr->preferredRecordSyntax))
{
- pr->recordComposition = (Z_RecordComposition *)
- odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
- pr->recordComposition->which = Z_RecordComp_simple;
- pr->recordComposition->u.simple = sr->smallSetElementSetNames;
+ yaz_log (LOG_LOG, "Returned cache records for small set");
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
+ new_apdu->u.searchResponse->referenceId = sr->referenceId;
+ new_apdu->u.searchResponse->resultCount =
+ &m_client->m_last_resultCount;
+
+ new_apdu->u.searchResponse->numberOfRecordsReturned
+ = odr_intdup(odr_encode(), toget);
+
+ new_apdu->u.searchResponse->records = (Z_Records*)
+ odr_malloc(odr_encode(), sizeof(Z_Records));
+ new_apdu->u.searchResponse->records->which = Z_Records_DBOSD;
+ new_apdu->u.searchResponse->records->u.databaseOrSurDiagnostics = npr;
+ new_apdu->u.searchResponse->nextResultSetPosition =
+ odr_intdup(odr_encode(), toget+1);
+ send_Z_PDU(new_apdu);
+ return 0;
+ }
+ else
+ {
+ yaz_log (LOG_LOG, "Optimizing search for small set");
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_presentRequest);
+ Z_PresentRequest *pr = new_apdu->u.presentRequest;
+ pr->referenceId = sr->referenceId;
+ pr->resultSetId = sr->resultSetName;
+ pr->preferredRecordSyntax = sr->preferredRecordSyntax;
+ *pr->numberOfRecordsRequested = toget;
+ if (sr->smallSetElementSetNames)
+ {
+ pr->recordComposition = (Z_RecordComposition *)
+ odr_malloc(odr_encode(), sizeof(Z_RecordComposition));
+ pr->recordComposition->which = Z_RecordComp_simple;
+ pr->recordComposition->u.simple = sr->smallSetElementSetNames;
+ }
+ m_client->m_sr_transform = 1;
+ return new_apdu;
}
- m_client->m_sr_transform = 1;
- return new_apdu;
}
}
else
delete m_client->m_last_query;
m_client->m_last_query = this_query;
m_client->m_last_ok = 0;
+ m_client->m_cache.clear();
+ m_client->m_resultSetStartPoint = 0;
xfree (m_client->m_last_resultSetId);
m_client->m_last_resultSetId = xstrdup (sr->resultSetName);
if (oi)
*oi = 0;
+ if (apdu->which == Z_APDU_presentRequest &&
+ m_client->m_resultSetStartPoint == 0)
+ {
+ Z_PresentRequest *pr = apdu->u.presentRequest;
+ m_client->m_resultSetStartPoint = *pr->resultSetStartPoint;
+ } else {
+ m_client->m_resultSetStartPoint = 0;
+ }
if (m_client->send_Z_PDU(apdu) < 0)
{
delete m_client;
m_waiting = 0;
m_init_odr = odr_createmem (ODR_DECODE);
m_initResponse = 0;
+ m_resultSetStartPoint = 0;
}
const char *Yaz_Proxy::option(const char *name, const char *value)
}
if (apdu->which == Z_APDU_searchResponse)
{
- m_last_resultCount = *apdu->u.searchResponse->resultCount;
- int status = *apdu->u.searchResponse->searchStatus;
- if (status &&
- (!apdu->u.searchResponse->records ||
- apdu->u.searchResponse->records->which == Z_Records_DBOSD))
+ Z_SearchResponse *sr = apdu->u.searchResponse;
+ m_last_resultCount = *sr->resultCount;
+ int status = *sr->searchStatus;
+ if (status && (!sr->records || sr->records->which == Z_Records_DBOSD))
+ {
m_last_ok = 1;
+
+ if (sr->records && sr->records->which == Z_Records_DBOSD)
+ {
+ m_cache.add(odr_decode(),
+ sr->records->u.databaseOrSurDiagnostics, 1);
+ }
+ }
}
- if (apdu->which == Z_APDU_presentResponse && m_sr_transform)
+ if (apdu->which == Z_APDU_presentResponse)
{
- m_sr_transform = 0;
Z_PresentResponse *pr = apdu->u.presentResponse;
- Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
- Z_SearchResponse *sr = new_apdu->u.searchResponse;
- sr->referenceId = pr->referenceId;
- *sr->resultCount = m_last_resultCount;
- sr->records = pr->records;
- sr->nextResultSetPosition = pr->nextResultSetPosition;
- sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
- apdu = new_apdu;
+ if (m_sr_transform)
+ {
+ m_sr_transform = 0;
+ Z_APDU *new_apdu = create_Z_PDU(Z_APDU_searchResponse);
+ Z_SearchResponse *sr = new_apdu->u.searchResponse;
+ sr->referenceId = pr->referenceId;
+ *sr->resultCount = m_last_resultCount;
+ sr->records = pr->records;
+ sr->nextResultSetPosition = pr->nextResultSetPosition;
+ sr->numberOfRecordsReturned = pr->numberOfRecordsReturned;
+ apdu = new_apdu;
+ }
+ if (pr->records->which == Z_Records_DBOSD && m_resultSetStartPoint)
+ {
+ m_cache.add(odr_decode(),
+ pr->records->u.databaseOrSurDiagnostics,
+ m_resultSetStartPoint);
+ m_resultSetStartPoint = 0;
+ }
}
if (m_cookie && *m_cookie)
set_otherInformationString (apdu, VAL_COOKIE, 1, m_cookie);
projects / yazpp-moved-to-github.git / blobdiff