#include <metaproxy/util.hpp>
#include "filter_session_shared.hpp"
+#include <yaz/copy_types.h>
#include <yaz/log.h>
#include <yaz/zgdu.h>
#include <yaz/otherinfo.h>
time_t m_time_last_use;
void timestamp();
yazpp_1::RecordCache m_record_cache;
+
+ Z_OtherInformation *additionalSearchInfoRequest;
+ Z_OtherInformation *additionalSearchInfoResponse;
+ NMEM mem_additionalSearchInfo;
BackendSet(
const std::string &result_set_id,
const Databases &databases,
- const yazpp_1::Yaz_Z_Query &query);
+ const yazpp_1::Yaz_Z_Query &query,
+ Z_OtherInformation *additionalSearchInfoRequest);
+ ~BackendSet();
bool search(
Package &frontend_package,
Package &search_package,
BackendInstancePtr get_backend(const Package &package);
void use_backend(BackendInstancePtr b);
void release_backend(BackendInstancePtr b);
- void expire_class();
+ bool expire_instances();
yazpp_1::GDU m_init_request;
yazpp_1::GDU m_init_response;
boost::mutex m_mutex_backend_class;
void present(Package &package, Z_APDU *apdu);
void scan(Package &package, Z_APDU *apdu);
+ int result_set_ref(ODR o,
+ const Databases &databases,
+ Z_RPNStructure *s, std::string &rset);
void get_set(mp::Package &package,
const Z_APDU *apdu_req,
const Databases &databases,
public:
void expire();
private:
+ void expire_classes();
+ void stat();
void init(Package &package, const Z_GDU *gdu,
FrontendPtr frontend);
void start();
yf::SessionShared::BackendClass::~BackendClass()
{}
+void yf::SessionShared::Rep::stat()
+{
+ int no_classes = 0;
+ int no_instances = 0;
+ BackendClassMap::const_iterator it;
+ {
+ boost::mutex::scoped_lock lock(m_mutex_backend_map);
+ for (it = m_backend_map.begin(); it != m_backend_map.end(); it++)
+ {
+ BackendClassPtr bc = it->second;
+ no_classes++;
+ BackendInstanceList::iterator bit = bc->m_backend_list.begin();
+ for (; bit != bc->m_backend_list.end(); bit++)
+ no_instances++;
+ }
+ }
+}
+
void yf::SessionShared::Rep::init(mp::Package &package, const Z_GDU *gdu,
FrontendPtr frontend)
{
yf::SessionShared::BackendSet::BackendSet(
const std::string &result_set_id,
const Databases &databases,
- const yazpp_1::Yaz_Z_Query &query) :
+ const yazpp_1::Yaz_Z_Query &query,
+ Z_OtherInformation *additionalSearchInfo) :
m_result_set_id(result_set_id),
m_databases(databases), m_result_set_size(0), m_query(query)
{
timestamp();
+ mem_additionalSearchInfo = nmem_create();
+ additionalSearchInfoResponse = 0;
+ additionalSearchInfoRequest =
+ yaz_clone_z_OtherInformation(additionalSearchInfo,
+ mem_additionalSearchInfo);
+}
+
+yf::SessionShared::BackendSet::~BackendSet()
+{
+ nmem_destroy(mem_additionalSearchInfo);
}
static int get_diagnostic(Z_DefaultDiagFormat *r)
Z_APDU *apdu_req = zget_APDU(odr, Z_APDU_searchRequest);
Z_SearchRequest *req = apdu_req->u.searchRequest;
+ req->additionalSearchInfo = additionalSearchInfoRequest;
req->resultSetName = odr_strdup(odr, m_result_set_id.c_str());
req->query = m_query.get_Z_Query();
Z_SearchResponse *b_resp = gdu->u.z3950->u.searchResponse;
*z_records = b_resp->records;
m_result_set_size = *b_resp->resultCount;
+
+ additionalSearchInfoResponse = yaz_clone_z_OtherInformation(
+ b_resp->additionalSearchInfo, mem_additionalSearchInfo);
return true;
}
Z_APDU *f_apdu = 0;
BackendSetPtr &found_set)
{
bool session_restarted = false;
+ Z_OtherInformation *additionalSearchInfo = 0;
+
+ if (apdu_req->which == Z_APDU_searchRequest)
+ additionalSearchInfo = apdu_req->u.searchRequest->additionalSearchInfo;
restart:
std::string result_set_id;
BackendSetList::const_iterator set_it = (*it)->m_sets.begin();
for (; set_it != (*it)->m_sets.end(); set_it++)
{
+ // for real present request we don't care
+ // if additionalSearchInfo matches: same records
if ((*set_it)->m_databases == databases
- && query.match(&(*set_it)->m_query))
+ && query.match(&(*set_it)->m_query)
+ && (apdu_req->which != Z_APDU_searchRequest ||
+ yaz_compare_z_OtherInformation(
+ additionalSearchInfo,
+ (*set_it)->additionalSearchInfoRequest)))
{
found_set = *set_it;
found_backend = *it;
// we must search ...
BackendSetPtr new_set(new BackendSet(result_set_id,
- databases, query));
+ databases, query,
+ additionalSearchInfo));
Z_Records *z_records = 0;
Package search_package(found_backend->m_session, package.origin());
found_backend->m_sets.push_back(found_set);
}
+int yf::SessionShared::Frontend::result_set_ref(ODR o,
+ const Databases &databases,
+ Z_RPNStructure *s,
+ std::string &rset)
+{
+ int ret = 0;
+ switch (s->which)
+ {
+ case Z_RPNStructure_simple:
+ if (s->u.simple->which == Z_Operand_resultSetId)
+ {
+ const char *id = s->u.simple->u.resultSetId;
+ rset = id;
+
+ FrontendSets::iterator fset_it = m_frontend_sets.find(id);
+ if (fset_it == m_frontend_sets.end())
+ {
+ ret = YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST;
+ }
+ else if (fset_it->second->get_databases() != databases)
+ {
+ ret = YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST;
+ }
+ else
+ {
+ yazpp_1::Yaz_Z_Query query = fset_it->second->get_query();
+ Z_Query *q = yaz_copy_Z_Query(query.get_Z_Query(), o);
+ if (q->which == Z_Query_type_1 || q->which == Z_Query_type_101)
+ {
+ s->which = q->u.type_1->RPNStructure->which;
+ s->u.simple = q->u.type_1->RPNStructure->u.simple;
+ }
+ else
+ {
+ ret = YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST;
+ }
+ }
+ }
+ break;
+ case Z_RPNStructure_complex:
+ ret = result_set_ref(o, databases, s->u.complex->s1, rset);
+ if (!ret)
+ ret = result_set_ref(o, databases, s->u.complex->s2, rset);
+ break;
+ }
+ return ret;
+}
+
void yf::SessionShared::Frontend::search(mp::Package &package,
Z_APDU *apdu_req)
{
YAZ_BIB1_RESULT_SET_EXISTS_AND_REPLACE_INDICATOR_OFF,
0);
package.response() = apdu;
-
return;
}
m_frontend_sets.erase(fset_it);
}
- yazpp_1::Yaz_Z_Query query;
- query.set_Z_Query(req->query);
Databases databases;
int i;
for (i = 0; i < req->num_databaseNames; i++)
databases.push_back(req->databaseNames[i]);
+
+ yazpp_1::Yaz_Z_Query query;
+ query.set_Z_Query(req->query);
+
+ Z_Query *q = query.get_Z_Query();
+ if (q->which == Z_Query_type_1 || q->which == Z_Query_type_101)
+ {
+ mp::odr odr;
+ std::string rset;
+ int diag = result_set_ref(odr, databases, q->u.type_1->RPNStructure,
+ rset);
+ if (diag)
+ {
+ Z_APDU *apdu =
+ odr.create_searchResponse(
+ apdu_req,
+ diag,
+ rset.c_str());
+ package.response() = apdu;
+ return;
+ }
+ query.set_Z_Query(q);
+ }
+
BackendSetPtr found_set; // null
BackendInstancePtr found_backend; // null
Z_APDU *f_apdu = odr.create_searchResponse(apdu_req, 0, 0);
Z_SearchResponse *f_resp = f_apdu->u.searchResponse;
*f_resp->resultCount = found_set->m_result_set_size;
+ f_resp->additionalSearchInfo = found_set->additionalSearchInfoResponse;
package.response() = f_apdu;
FrontendSetPtr fset(new FrontendSet(databases, query));
if (b_resp->records && b_resp->records->which == Z_Records_DBOSD)
{
+#if 0
yaz_log(YLOG_LOG, "Adding " ODR_INT_PRINTF "+" ODR_INT_PRINTF
" records to cache %p",
*req->resultSetStartPoint,
*f_resp->numberOfRecordsReturned,
&found_set->m_record_cache);
+#endif
found_set->m_record_cache.add(
odr,
b_resp->records->u.databaseOrSurDiagnostics,
m_p->expire();
}
-void yf::SessionShared::BackendClass::expire_class()
+bool yf::SessionShared::BackendClass::expire_instances()
{
time_t now;
time(&now);
bit++;
}
}
+ if (m_backend_list.empty())
+ return true;
+ return false;
+}
+
+void yf::SessionShared::Rep::expire_classes()
+{
+ boost::mutex::scoped_lock lock(m_mutex_backend_map);
+ BackendClassMap::iterator b_it = m_backend_map.begin();
+ while (b_it != m_backend_map.end())
+ {
+ if (b_it->second->expire_instances())
+ {
+ m_backend_map.erase(b_it);
+ b_it = m_backend_map.begin();
+ }
+ else
+ b_it++;
+ }
}
void yf::SessionShared::Rep::expire()
xt.sec += m_session_ttl / 3;
boost::thread::sleep(xt);
- BackendClassMap::const_iterator b_it = m_backend_map.begin();
- for (; b_it != m_backend_map.end(); b_it++)
- b_it->second->expire_class();
+ stat();
+ expire_classes();
}
}
projects / metaproxy-moved-to-github.git / blobdiff