-/* $Id: filter_sru_to_z3950.cpp,v 1.37 2008-01-29 21:25:46 adam Exp $
- Copyright (c) 2005-2007, Index Data.
-
-This file is part of Metaproxy.
+/* This file is part of Metaproxy.
+ Copyright (C) 2005-2011 Index Data
Metaproxy is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
for more details.
You should have received a copy of the GNU General Public License
-along with Metaproxy; see the file LICENSE. If not, write to the
-Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.
- */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+// make std::min actually work on Windows
+#define NOMINMAX 1
#include "config.hpp"
-#include "filter.hpp"
-#include "package.hpp"
-#include "util.hpp"
+#include <metaproxy/package.hpp>
+#include <metaproxy/util.hpp>
#include "gduutil.hpp"
#include "sru_util.hpp"
#include "filter_sru_to_z3950.hpp"
#include <yaz/srw.h>
#include <yaz/pquery.h>
#include <yaz/oid_db.h>
+#include <yaz/log.h>
#include <boost/thread/mutex.hpp>
+#include <boost/thread/condition.hpp>
#include <iostream>
#include <sstream>
#include <string>
-#include <algorithm>
+/* #include <algorithm> */
#include <map>
namespace mp = metaproxy_1;
namespace mp_util = metaproxy_1::util;
namespace yf = mp::filter;
-
namespace metaproxy_1 {
namespace filter {
class SRUtoZ3950::Impl {
void configure(const xmlNode *xmlnode);
void process(metaproxy_1::Package &package);
private:
- union SRW_query {char * cql; char * xcql; char * pqf;};
- typedef const int& SRW_query_type;
std::map<std::string, const xmlNode *> m_database_explain;
- private:
- bool z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
- const SRW_query &query,
- SRW_query_type query_type) const;
+ typedef std::map<std::string, int> ActiveUrlMap;
- bool z3950_init_request(mp::Package &package,
- mp::odr &odr_en,
- std::string zurl,
- Z_SRW_PDU *sru_pdu_res) const;
+ boost::mutex m_mutex;
+ boost::condition m_cond_url_ready;
+ ActiveUrlMap m_active_urls;
+ private:
+ void sru(metaproxy_1::Package &package, Z_GDU *zgdu_req);
+ int z3950_build_query(
+ mp::odr &odr_en, Z_Query *z_query,
+ const Z_SRW_searchRetrieveRequest *req
+ ) const;
+
+ bool z3950_init_request(
+ mp::Package &package,
+ mp::odr &odr_en,
+ std::string zurl,
+ Z_SRW_PDU *sru_pdu_res,
+ const Z_SRW_PDU *sru_pdu_req
+ ) const;
bool z3950_close_request(mp::Package &package) const;
mp::odr &odr_en,
Z_SRW_PDU *sru_pdu_res,
Z_SRW_searchRetrieveRequest const *sr_req,
- std::string zurl) const;
+ std::string zurl
+ ) const;
bool z3950_present_request(
mp::Package &package,
mp::odr &odr_en,
Z_SRW_PDU *sru_pdu_res,
- Z_SRW_searchRetrieveRequest const *sr_req) const;
-
- bool z3950_scan_request(mp::Package &package,
- mp::odr &odr_en,
- Z_SRW_PDU *sru_pdu_res,
- Z_SRW_scanRequest
- const *sr_req) const;
-
- bool z3950_to_srw_diagnostics_ok(mp::odr &odr_en,
- Z_SRW_searchRetrieveResponse *srw_res,
- Z_Records *records) const;
+ Z_SRW_searchRetrieveRequest const *sr_req
+ ) const;
+
+ bool z3950_to_srw_diagnostics_ok(
+ mp::odr &odr_en,
+ Z_SRW_searchRetrieveResponse *srw_res,
+ Z_Records *records
+ ) const;
+
+ int z3950_to_srw_diag(
+ mp::odr &odr_en,
+ Z_SRW_searchRetrieveResponse *srw_res,
+ Z_DefaultDiagFormat *ddf
+ ) const;
- int z3950_to_srw_diag(mp::odr &odr_en,
- Z_SRW_searchRetrieveResponse *srw_res,
- Z_DefaultDiagFormat *ddf) const;
};
}
}
{ // must have a destructor because of boost::scoped_ptr
}
-void yf::SRUtoZ3950::configure(const xmlNode *xmlnode)
+void yf::SRUtoZ3950::configure(const xmlNode *xmlnode, bool test_only,
+ const char *path)
{
m_p->configure(xmlnode);
}
{
const xmlNode * dbnode;
- for (dbnode = confignode->children; dbnode; dbnode = dbnode->next){
+ for (dbnode = confignode->children; dbnode; dbnode = dbnode->next)
+ {
if (dbnode->type != XML_ELEMENT_NODE)
continue;
mp::xml::check_element_mp(dbnode, "database");
for (struct _xmlAttr *attr = dbnode->properties;
- attr; attr = attr->next){
+ attr; attr = attr->next)
+ {
mp::xml::check_attribute(attr, "", "name");
database = mp::xml::get_text(attr);
const xmlNode *explainnode;
for (explainnode = dbnode->children;
- explainnode; explainnode = explainnode->next){
+ explainnode; explainnode = explainnode->next)
+ {
if (explainnode->type != XML_ELEMENT_NODE)
continue;
if (explainnode)
}
// assigning explain node to database name - no check yet
m_database_explain.insert(std::make_pair(database, explainnode));
- }
+ }
}
}
-void yf::SRUtoZ3950::Impl::process(mp::Package &package)
+void yf::SRUtoZ3950::Impl::sru(mp::Package &package, Z_GDU *zgdu_req)
{
- Z_GDU *zgdu_req = package.request().get();
-
- // ignoring all non HTTP_Request packages
- if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request)){
- package.move();
- return;
- }
-
- // only working on HTTP_Request packages now
-
bool ok = true;
mp::odr odr_de(ODR_DECODE);
// assign explain config XML DOM node if database is known
const xmlNode *explainnode = 0;
- if (idbexp != m_database_explain.end()){
+ if (idbexp != m_database_explain.end())
+ {
explainnode = idbexp->second;
}
- // just moving package if database is not known
- else {
- package.move();
- return;
- }
-
// decode SRU request
Z_SOAP *soap = 0;
// filter acts as sink for non-valid SRU requests
if (! (sru_pdu_req = mp_util::decode_sru_request(package, odr_de, odr_en,
- sru_pdu_res, &soap,
- charset, stylesheet)))
+ sru_pdu_res, &soap,
+ charset, stylesheet)))
{
if (soap)
{
{
zurl = std::string(arg->value);
}
+ else if (!strcmp(arg->name, "x-max-sockets"))
+ {
+ package.origin().set_max_sockets(atoi(arg->value));
+ }
+ assert(sru_pdu_req);
// filter acts as sink for SRU explain requests
- if (sru_pdu_req && sru_pdu_req->which == Z_SRW_explain_request)
+ if (sru_pdu_req->which == Z_SRW_explain_request)
{
Z_SRW_explainRequest *er_req = sru_pdu_req->u.explain_request;
//mp_util::build_simple_explain(package, odr_en, sru_pdu_res,
mp_util::build_sru_explain(package, odr_en, sru_pdu_res,
sruinfo, explainnode, er_req);
}
- else if (sru_pdu_req
- && sru_pdu_req->which == Z_SRW_searchRetrieve_request
- && sru_pdu_req->u.request)
+ else if (sru_pdu_req->which == Z_SRW_searchRetrieve_request
+ && sru_pdu_req->u.request)
{ // searchRetrieve
Z_SRW_searchRetrieveRequest *sr_req = sru_pdu_req->u.request;
ok = mp_util::check_sru_query_exists(package, odr_en,
sru_pdu_res, sr_req);
- if (ok && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
+ if (ok && z3950_init_request(package, odr_en,
+ zurl, sru_pdu_res, sru_pdu_req))
{
ok = z3950_search_request(package, odr_en,
sru_pdu_res, sr_req, zurl);
if (ok
&& sru_pdu_res->u.response->numberOfRecords
- && *(sru_pdu_res->u.response->numberOfRecords)
- && sr_req->maximumRecords
- && *(sr_req->maximumRecords))
-
+ && *(sru_pdu_res->u.response->numberOfRecords))
+
ok = z3950_present_request(package, odr_en,
sru_pdu_res,
sr_req);
}
// scan
- else if (sru_pdu_req
- && sru_pdu_req->which == Z_SRW_scan_request
+ else if (sru_pdu_req->which == Z_SRW_scan_request
&& sru_pdu_req->u.scan_request)
{
- Z_SRW_scanRequest *sr_req = sru_pdu_req->u.scan_request;
-
sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_scan_response);
// we do not do scan at the moment, therefore issuing a diagnostic
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.scan_response->diagnostics),
&(sru_pdu_res->u.scan_response->num_diagnostics),
- 4, "scan");
-
- // to be used when we do scan
- if (false && z3950_init_request(package, odr_en, zurl, sru_pdu_res))
- {
- z3950_scan_request(package, odr_en, sru_pdu_res, sr_req);
- z3950_close_request(package);
- }
+ YAZ_SRW_UNSUPP_OPERATION, "scan");
}
else
{
- //std::cout << "SRU OPERATION NOT SUPPORTED \n";
sru_pdu_res = yaz_srw_get(odr_en, Z_SRW_explain_response);
- // TODO: make nice diagnostic return package
- return;
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.explain_response->diagnostics),
+ &(sru_pdu_res->u.explain_response->num_diagnostics),
+ YAZ_SRW_UNSUPP_OPERATION, "unknown");
}
// build and send SRU response
}
+void yf::SRUtoZ3950::Impl::process(mp::Package &package)
+{
+ Z_GDU *zgdu_req = package.request().get();
+
+ // ignoring all non HTTP_Request packages
+ if (!zgdu_req || !(zgdu_req->which == Z_GDU_HTTP_Request))
+ {
+ package.move();
+ return;
+ }
+
+ // only working on HTTP_Request packages now
+
+ // see if HTTP request is already being executed..
+ // we consider only the SRU - GET case..
+ if (zgdu_req->u.HTTP_Request->content_len == 0)
+ {
+ const char *path = zgdu_req->u.HTTP_Request->path;
+ boost::mutex::scoped_lock lock(m_mutex);
+ while (1)
+ {
+ ActiveUrlMap::iterator it = m_active_urls.find(path);
+ if (it == m_active_urls.end())
+ {
+ m_active_urls[path] = 1;
+ break;
+ }
+ yaz_log(YLOG_LOG, "Waiting for %s to complete", path);
+ m_cond_url_ready.wait(lock);
+ }
+ }
+ sru(package, zgdu_req);
+ if (zgdu_req->u.HTTP_Request->content_len == 0)
+ {
+ const char *path = zgdu_req->u.HTTP_Request->path;
+ boost::mutex::scoped_lock lock(m_mutex);
+
+ ActiveUrlMap::iterator it = m_active_urls.find(path);
+
+ m_active_urls.erase(it);
+ m_cond_url_ready.notify_all();
+ }
+}
+
bool
yf::SRUtoZ3950::Impl::z3950_init_request(mp::Package &package,
mp::odr &odr_en,
std::string zurl,
- Z_SRW_PDU *sru_pdu_res) const
+ Z_SRW_PDU *sru_pdu_res,
+ const Z_SRW_PDU *sru_pdu_req) const
{
// prepare Z3950 package
Package z3950_package(package.session(), package.origin());
// set initRequest APDU
Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_initRequest);
Z_InitRequest *init_req = apdu->u.initRequest;
- //TODO: add user name in apdu
- //TODO: add user passwd in apdu
- //init_req->idAuthentication = org_init->idAuthentication;
- //init_req->implementationId = "IDxyz";
- //init_req->implementationName = "NAMExyz";
- //init_req->implementationVersion = "VERSIONxyz";
+ Z_IdAuthentication *auth = NULL;
+ if (sru_pdu_req->username && !sru_pdu_req->password)
+ {
+ auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
+ auth->which = Z_IdAuthentication_open;
+ auth->u.open = odr_strdup(odr_en, sru_pdu_req->username);
+ }
+ else if (sru_pdu_req->username && sru_pdu_req->password)
+ {
+ auth = (Z_IdAuthentication *) odr_malloc(odr_en, sizeof(Z_IdAuthentication));
+ auth->which = Z_IdAuthentication_idPass;
+ auth->u.idPass = (Z_IdPass *) odr_malloc(odr_en, sizeof(Z_IdPass));
+ auth->u.idPass->groupId = NULL;
+ auth->u.idPass->password = odr_strdup(odr_en, sru_pdu_req->password);
+ auth->u.idPass->userId = odr_strdup(odr_en, sru_pdu_req->username);
+ }
+
+ init_req->idAuthentication = auth;
+
+ *init_req->preferredMessageSize = 10*1024*1024;
+ *init_req->maximumRecordSize = 10*1024*1024;
+
ODR_MASK_SET(init_req->options, Z_Options_search);
ODR_MASK_SET(init_req->options, Z_Options_present);
ODR_MASK_SET(init_req->options, Z_Options_namedResultSets);
z3950_package.move();
// dead Z3950 backend detection
- if (z3950_package.session().is_closed()){
+ if (z3950_package.session().is_closed())
+ {
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 2, 0);
+ YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
return false;
}
if (z3950_gdu && z3950_gdu->which == Z_GDU_Z3950
&& z3950_gdu->u.z3950->which == Z_APDU_initResponse
&& *z3950_gdu->u.z3950->u.initResponse->result)
- return true;
+ return true;
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 2, 0);
+ YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
return false;
}
// && z3950_gdu->u.z3950->which == Z_APDU_close)
// return true;
- if (z3950_package.session().is_closed()){
+ if (z3950_package.session().is_closed())
+ {
return true;
}
return false;
if (!mp_util::set_databases_from_zurl(odr_en, zurl,
- &z_searchRequest->num_databaseNames,
- &z_searchRequest->databaseNames))
+ &z_searchRequest->num_databaseNames,
+ &z_searchRequest->databaseNames))
{
z_searchRequest->num_databaseNames = 1;
z_searchRequest->databaseNames = (char**)
= odr_strdup(odr_en, const_cast<char *>(sr_req->database));
else
z_searchRequest->databaseNames[0]
- = odr_strdup(odr_en, "Default");
+ = odr_strdup(odr_en, "Default");
}
// z3950'fy query
Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
z_searchRequest->query = z_query;
- if (!z3950_build_query(odr_en, z_query,
- (const SRW_query&)sr_req->query,
- sr_req->query_type))
+ int sru_diagnostic = z3950_build_query(odr_en, z_query, sr_req);
+ if (sru_diagnostic)
{
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 7, "query");
+ sru_diagnostic,
+ "query");
return false;
}
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 2, 0);
+ YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
return false;
}
// Finally, roll on and srw'fy number of records
sru_pdu_res->u.response->numberOfRecords
- = (int *) odr_malloc(odr_en, sizeof(int *));
- *(sru_pdu_res->u.response->numberOfRecords) = *(sr->resultCount);
+ = odr_intdup(odr_en, *sr->resultCount);
// srw'fy nextRecordPosition
//sru_pdu_res->u.response->nextRecordPosition
}
bool
-yf::SRUtoZ3950::Impl::z3950_present_request(mp::Package &package,
- mp::odr &odr_en,
- Z_SRW_PDU *sru_pdu_res,
- Z_SRW_searchRetrieveRequest
- const *sr_req)
+yf::SRUtoZ3950::Impl::z3950_present_request(
+ mp::Package &package,
+ mp::odr &odr_en,
+ Z_SRW_PDU *sru_pdu_res,
+ const Z_SRW_searchRetrieveRequest *sr_req)
const
{
assert(sru_pdu_res->u.response);
+ int start = 1;
+ int max_recs = 0;
if (!sr_req)
return false;
-
+ if (sr_req->maximumRecords)
+ max_recs = *sr_req->maximumRecords;
+ if (sr_req->startRecord)
+ start = *sr_req->startRecord;
+
// no need to work if nobody wants record ..
- if (!(sr_req->maximumRecords) || 0 == *(sr_req->maximumRecords))
+ if (max_recs == 0)
return true;
bool send_z3950_present = true;
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 72, 0);
+ YAZ_SRW_XPATH_RETRIEVAL_UNSUPP, 0);
}
// resultSetTTL unsupported.
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 50, 0);
+ YAZ_SRW_RESULT_SETS_UNSUPP, 0);
}
// sort unsupported
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 80, 0);
+ YAZ_SRW_SORT_UNSUPP, 0);
}
// start record requested negative, or larger than number of records
- if (sr_req->startRecord
- &&
- ((*(sr_req->startRecord) < 0) // negative
- ||
- (sru_pdu_res->u.response->numberOfRecords //out of range
- && *(sr_req->startRecord)
- > *(sru_pdu_res->u.response->numberOfRecords))
- ))
+ if (start < 0 || start > *sru_pdu_res->u.response->numberOfRecords)
{
send_z3950_present = false;
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 61, 0);
+ YAZ_SRW_FIRST_RECORD_POSITION_OUT_OF_RANGE, 0);
}
-
+
// maximumRecords requested negative
- if (sr_req->maximumRecords
- && *(sr_req->maximumRecords) < 0)
-
+ if (max_recs < 0)
{
send_z3950_present = false;
yaz_add_srw_diagnostic(odr_en,
&(sru_pdu_res->u.response->diagnostics),
&(sru_pdu_res->u.response->num_diagnostics),
- 6, "maximumRecords");
+ YAZ_SRW_UNSUPP_PARAMETER_VALUE,
+ "maximumRecords");
}
// exit on all these above diagnostics
if (!send_z3950_present)
return false;
-
- // now packaging the z3950 present request
- Package z3950_package(package.session(), package.origin());
- z3950_package.copy_filter(package);
- Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
-
- assert(apdu->u.presentRequest);
-
- // z3950'fy start record position
- if (sr_req->startRecord)
- *(apdu->u.presentRequest->resultSetStartPoint)
- = *(sr_req->startRecord);
- else
- *(apdu->u.presentRequest->resultSetStartPoint) = 1;
- // z3950'fy number of records requested
- // protect against requesting records out of range
- if (sr_req->maximumRecords)
- *(apdu->u.presentRequest->numberOfRecordsRequested)
- = std::min(*(sr_req->maximumRecords),
- *(sru_pdu_res->u.response->numberOfRecords)
- - *(apdu->u.presentRequest->resultSetStartPoint)
- + 1);
-
- // z3950'fy recordPacking
- int record_packing = Z_SRW_recordPacking_XML;
- if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
- record_packing = Z_SRW_recordPacking_string;
-
- // RecordSyntax will always be XML
- apdu->u.presentRequest->preferredRecordSyntax
- = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
-
- // z3950'fy record schema
- if (sr_req->recordSchema)
- {
- apdu->u.presentRequest->recordComposition
- = (Z_RecordComposition *)
- odr_malloc(odr_en, sizeof(Z_RecordComposition));
- apdu->u.presentRequest->recordComposition->which
- = Z_RecordComp_simple;
- apdu->u.presentRequest->recordComposition->u.simple
- = mp_util::build_esn_from_schema(odr_en,
- (const char *) sr_req->recordSchema);
- }
-
- // z3950'fy time to live - flagged as diagnostics above
- //if (sr_req->resultSetTTL)
-
- // attaching Z3950 package to filter chain
- z3950_package.request() = apdu;
+ if (max_recs > *sru_pdu_res->u.response->numberOfRecords - start)
+ max_recs = *sru_pdu_res->u.response->numberOfRecords - start + 1;
- // sending Z30.50 present request
- z3950_package.move();
-
- //check successful Z3950 present response
- Z_GDU *z3950_gdu = z3950_package.response().get();
- if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
- || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
- || !z3950_gdu->u.z3950->u.presentResponse)
-
- {
- yaz_add_srw_diagnostic(odr_en,
- &(sru_pdu_res->u.response->diagnostics),
- &(sru_pdu_res->u.response->num_diagnostics),
- 2, 0);
- return false;
- }
-
-
- // everything fine, continuing
-
- Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
Z_SRW_searchRetrieveResponse *sru_res = sru_pdu_res->u.response;
-
-
- // checking non surrogate diagnostics in Z3950 present response package
- if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
- pr->records))
- return false;
-
-
-
- // copy all records if existing
- if (pr->records && pr->records->which == Z_Records_DBOSD)
+ sru_res->records = (Z_SRW_record *)
+ odr_malloc(odr_en, max_recs * sizeof(Z_SRW_record));
+ int num = 0;
+ while (num < max_recs)
{
- // srw'fy number of returned records
- sru_res->num_records
- = pr->records->u.databaseOrSurDiagnostics->num_records;
+ // now packaging the z3950 present request
+ Package z3950_package(package.session(), package.origin());
+ z3950_package.copy_filter(package);
+ Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_presentRequest);
- sru_res->records
- = (Z_SRW_record *) odr_malloc(odr_en,
- sru_res->num_records
- * sizeof(Z_SRW_record));
+ assert(apdu->u.presentRequest);
-
- // srw'fy nextRecordPosition
- // next position never zero or behind the last z3950 record
- if (pr->nextResultSetPosition
- && *(pr->nextResultSetPosition) > 0
- && *(pr->nextResultSetPosition)
- <= *(sru_pdu_res->u.response->numberOfRecords))
- sru_res->nextRecordPosition
- = odr_intdup(odr_en, *(pr->nextResultSetPosition));
+ *apdu->u.presentRequest->resultSetStartPoint = start + num;
+ *apdu->u.presentRequest->numberOfRecordsRequested = max_recs - num;
- // inserting all records
- for (int i = 0; i < sru_res->num_records; i++)
+ // set response packing to be same as "request" packing..
+ int record_packing = Z_SRW_recordPacking_XML;
+ if (sr_req->recordPacking && 's' == *(sr_req->recordPacking))
+ record_packing = Z_SRW_recordPacking_string;
+
+ // RecordSyntax will always be XML
+ apdu->u.presentRequest->preferredRecordSyntax
+ = odr_oiddup(odr_en, yaz_oid_recsyn_xml);
+
+ // z3950'fy record schema
+ if (sr_req->recordSchema)
{
- Z_NamePlusRecord *npr
- = pr->records->u.databaseOrSurDiagnostics->records[i];
-
- sru_res->records[i].recordPosition
- = odr_intdup(odr_en,
- i + *(apdu->u.presentRequest->resultSetStartPoint));
-
- sru_res->records[i].recordPacking = record_packing;
+ apdu->u.presentRequest->recordComposition
+ = (Z_RecordComposition *)
+ odr_malloc(odr_en, sizeof(Z_RecordComposition));
+ apdu->u.presentRequest->recordComposition->which
+ = Z_RecordComp_simple;
+ apdu->u.presentRequest->recordComposition->u.simple
+ = mp_util::build_esn_from_schema(odr_en,
+ (const char *)
+ sr_req->recordSchema);
+ }
+
+ // attaching Z3950 package to filter chain
+ z3950_package.request() = apdu;
+
+ // sending Z30.50 present request
+ z3950_package.move();
+
+ //check successful Z3950 present response
+ Z_GDU *z3950_gdu = z3950_package.response().get();
+ if (!z3950_gdu || z3950_gdu->which != Z_GDU_Z3950
+ || z3950_gdu->u.z3950->which != Z_APDU_presentResponse
+ || !z3950_gdu->u.z3950->u.presentResponse)
- if (npr->which != Z_NamePlusRecord_databaseRecord)
- {
- sru_res->records[i].recordSchema = "diagnostic";
- sru_res->records[i].recordData_buf = "67";
- sru_res->records[i].recordData_len = 2;
- }
- else
+ {
+ yaz_add_srw_diagnostic(odr_en,
+ &(sru_pdu_res->u.response->diagnostics),
+ &(sru_pdu_res->u.response->num_diagnostics),
+ YAZ_SRW_SYSTEM_TEMPORARILY_UNAVAILABLE, 0);
+ return false;
+ }
+ // everything fine, continuing
+
+ Z_PresentResponse *pr = z3950_gdu->u.z3950->u.presentResponse;
+
+ // checking non surrogate diagnostics in Z3950 present response package
+ if (!z3950_to_srw_diagnostics_ok(odr_en, sru_pdu_res->u.response,
+ pr->records))
+ return false;
+
+ // if anything but database or surrogate diagnostics, stop
+ if (!pr->records || pr->records->which != Z_Records_DBOSD)
+ break;
+ else
+ {
+ // inserting all records
+ int returned_recs =
+ pr->records->u.databaseOrSurDiagnostics->num_records;
+ for (int i = 0; i < returned_recs; i++)
{
- Z_External *r = npr->u.databaseRecord;
- if (r->direct_reference
- && !oid_oidcmp(r->direct_reference, yaz_oid_recsyn_xml))
+ int position = i + *apdu->u.presentRequest->resultSetStartPoint;
+ Z_NamePlusRecord *npr
+ = pr->records->u.databaseOrSurDiagnostics->records[i];
+
+ sru_res->records[i + num].recordPacking = record_packing;
+
+ if (npr->which == Z_NamePlusRecord_databaseRecord &&
+ npr->u.databaseRecord->direct_reference
+ && !oid_oidcmp(npr->u.databaseRecord->direct_reference,
+ yaz_oid_recsyn_xml))
{
- sru_res->records[i].recordSchema = "dc";
- sru_res->records[i].recordData_buf
+ // got XML record back
+ Z_External *r = npr->u.databaseRecord;
+ sru_res->records[i + num].recordPosition =
+ odr_intdup(odr_en, position);
+ sru_res->records[i + num].recordSchema = sr_req->recordSchema;
+ sru_res->records[i + num].recordData_buf
= odr_strdupn(odr_en,
(const char *)r->u.octet_aligned->buf,
r->u.octet_aligned->len);
- sru_res->records[i].recordData_len
+ sru_res->records[i + num].recordData_len
= r->u.octet_aligned->len;
}
else
{
- sru_res->records[i].recordSchema = "diagnostic";
- sru_res->records[i].recordData_buf = "67";
- sru_res->records[i].recordData_len = 2;
+ // not XML or no database record at all
+ yaz_mk_sru_surrogate(
+ odr_en, sru_res->records + i + num, position,
+ YAZ_SRW_RECORD_NOT_AVAILABLE_IN_THIS_SCHEMA, 0);
}
- }
- }
+ }
+ num += returned_recs;
+ }
}
-
+ sru_res->num_records = num;
+ if (start - 1 + num < *sru_pdu_res->u.response->numberOfRecords)
+ sru_res->nextRecordPosition =
+ odr_intdup(odr_en, start + num);
return true;
}
-bool
-yf::SRUtoZ3950::Impl::z3950_scan_request(mp::Package &package,
- mp::odr &odr_en,
- Z_SRW_PDU *sru_pdu_res,
- Z_SRW_scanRequest const *sr_req) const
-{
- assert(sru_pdu_res->u.scan_response);
-
- Package z3950_package(package.session(), package.origin());
- z3950_package.copy_filter(package);
- //mp::odr odr_en(ODR_ENCODE);
- Z_APDU *apdu = zget_APDU(odr_en, Z_APDU_scanRequest);
-
- //TODO: add stuff in apdu
- Z_ScanRequest *z_scanRequest = apdu->u.scanRequest;
-
- // database repackaging
- z_scanRequest->num_databaseNames = 1;
- z_scanRequest->databaseNames = (char**)
- odr_malloc(odr_en, sizeof(char *));
- if (sr_req->database)
- z_scanRequest->databaseNames[0]
- = odr_strdup(odr_en, const_cast<char *>(sr_req->database));
- else
- z_scanRequest->databaseNames[0]
- = odr_strdup(odr_en, "Default");
-
-
- // query repackaging
- // CQL or XCQL scan is not possible in Z3950, flagging a diagnostic
- if (sr_req->query_type != Z_SRW_query_type_pqf)
- {
- //send_to_srw_client_error(7, "query");
- return false;
- }
-
- // PQF query repackaging
- // need to use Z_AttributesPlusTerm structure, not Z_Query
- // this can be digget out of a
- // Z_query->type1(Z_RPNQuery)->RPNStructure(Z_RPNStructure)
- // ->u.simple(Z_Operand)->u.attributesPlusTerm(Z_AttributesPlusTerm )
-
- //Z_Query *z_query = (Z_Query *) odr_malloc(odr_en, sizeof(Z_Query));
- //z_searchRequest->query = z_query;
-
- //if (!z3950_build_query(odr_en, z_query,
- // (const SRW_query&)sr_req->query,
- // sr_req->query_type))
- //{
- //send_to_srw_client_error(7, "query");
- // return false;
- //}
-
- // TODO:
-
- z3950_package.request() = apdu;
- std::cout << "z3950_scan_request " << *apdu << "\n";
-
- z3950_package.move();
- //TODO: check success condition
- return true;
- return false;
-}
-
-bool yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
- const SRW_query &query,
- SRW_query_type query_type) const
+int yf::SRUtoZ3950::Impl::z3950_build_query(mp::odr &odr_en, Z_Query *z_query,
+ const Z_SRW_searchRetrieveRequest *req
+ ) const
{
- if (query_type == Z_SRW_query_type_cql)
+ if (req->query_type == Z_SRW_query_type_cql)
{
Z_External *ext = (Z_External *)
odr_malloc(odr_en, sizeof(*ext));
ext->indirect_reference = 0;
ext->descriptor = 0;
ext->which = Z_External_CQL;
- ext->u.cql = const_cast<char *>(query.cql);
+ ext->u.cql = odr_strdup(odr_en, req->query.cql);
z_query->which = Z_Query_type_104;
z_query->u.type_104 = ext;
- return true;
+ return 0;
}
- if (query_type == Z_SRW_query_type_pqf)
+ if (req->query_type == Z_SRW_query_type_pqf)
{
Z_RPNQuery *RPNquery;
YAZ_PQF_Parser pqf_parser;
pqf_parser = yaz_pqf_create ();
- RPNquery = yaz_pqf_parse (pqf_parser, odr_en, query.pqf);
+ RPNquery = yaz_pqf_parse (pqf_parser, odr_en, req->query.pqf);
+
+ yaz_pqf_destroy(pqf_parser);
+
if (!RPNquery)
- {
- std::cout << "TODO: Handeling of bad PQF\n";
- std::cout << "TODO: Diagnostic to be send\n";
- }
+ return YAZ_SRW_QUERY_SYNTAX_ERROR;
+
z_query->which = Z_Query_type_1;
z_query->u.type_1 = RPNquery;
- yaz_pqf_destroy(pqf_parser);
- return true;
+ return 0;
}
- return false;
+ return YAZ_SRW_MANDATORY_PARAMETER_NOT_SUPPLIED;
}
int
yf::SRUtoZ3950::Impl::z3950_to_srw_diag(mp::odr &odr_en,
- Z_SRW_searchRetrieveResponse *sru_res,
- Z_DefaultDiagFormat *ddf) const
+ Z_SRW_searchRetrieveResponse *sru_res,
+ Z_DefaultDiagFormat *ddf) const
{
int bib1_code = *ddf->condition;
sru_res->num_diagnostics = 1;
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
- * c-file-style: "stroustrup"
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
+
projects / metaproxy-moved-to-github.git / blobdiff