X-Git-Url: http://sru.miketaylor.org.uk/?a=blobdiff_plain;f=src%2Ffilter_virt_db.cpp;h=b30e7b4b975bd61d4b233b8cde78d9bfaacab8b7;hb=c1d953eee6c00432493bc364da6284704ccd9cc2;hp=a7d0ae8c2dcabb8236efdfbdd5b6bbc455ed9b4e;hpb=0d323a3f455c0a0a669fa33e77b670d1af23fec5;p=metaproxy-moved-to-github.git

diff --git a/src/filter_virt_db.cpp b/src/filter_virt_db.cpp
index a7d0ae8..b30e7b4 100644
--- a/src/filter_virt_db.cpp
+++ b/src/filter_virt_db.cpp
@@ -1,5 +1,5 @@
 /* This file is part of Metaproxy.
-   Copyright (C) 2005-2009 Index Data
+   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
@@ -18,20 +18,20 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "config.hpp"
 
-#include "filter.hpp"
-#include "package.hpp"
+#include "filter_virt_db.hpp"
+#include <metaproxy/package.hpp>
 
 #include <boost/thread/mutex.hpp>
 #include <boost/thread/condition.hpp>
 #include <boost/shared_ptr.hpp>
 
-#include "util.hpp"
-#include "filter_virt_db.hpp"
+#include <metaproxy/util.hpp>
 
 #include <yaz/zgdu.h>
 #include <yaz/otherinfo.h>
 #include <yaz/diagbib1.h>
 #include <yaz/match_glob.h>
+#include <yaz/log.h>
 
 #include <map>
 #include <iostream>
@@ -228,21 +228,21 @@ yf::VirtualDB::BackendPtr yf::VirtualDB::Frontend::init_backend(
 
     Z_GDU *gdu = init_package.response().get();
     // we hope to get an init response
-    if (gdu && gdu->which == Z_GDU_Z3950 && gdu->u.z3950->which ==
-        Z_APDU_initResponse)
+    error_code = YAZ_BIB1_DATABASE_UNAVAILABLE;
+    if (gdu && gdu->which == Z_GDU_Z3950
+        && gdu->u.z3950->which == Z_APDU_initResponse
+        && *gdu->u.z3950->u.initResponse->result)
     {
         Z_InitResponse *res = gdu->u.z3950->u.initResponse;
         if (ODR_MASK_GET(res->options, Z_Options_namedResultSets))
         {
             b->m_named_result_sets = true;
         }
-        if (*res->result)
+        if (*res->result && !init_package.session().is_closed())
         {
             m_backend_list.push_back(b);
             return b;
-
         }
-        error_code = YAZ_BIB1_DATABASE_UNAVAILABLE;
         mp::util::get_init_diagnostics(res, error_code, addinfo);
     }
     if (!init_package.session().is_closed())
@@ -268,7 +268,6 @@ void yf::VirtualDB::Frontend::search(mp::Package &package, Z_APDU *apdu_req)
     for (i = 0; i<req->num_databaseNames; i++)
         databases.push_back(req->databaseNames[i]);
 
-    BackendPtr b; // null for now
     Sets_it sets_it = m_sets.find(req->resultSetName);
     if (sets_it != m_sets.end())
     {
@@ -287,37 +286,22 @@ void yf::VirtualDB::Frontend::search(mp::Package &package, Z_APDU *apdu_req)
             return;
         } 
         sets_it->second.m_backend->m_number_of_sets--;
-
-        // pick up any existing backend with a database match
-        std::list<BackendPtr>::const_iterator map_it;
-        map_it = m_backend_list.begin();
-        for (; map_it != m_backend_list.end(); map_it++)
-        {
-            BackendPtr tmp = *map_it;
-            if (tmp->m_frontend_databases == databases)
-                break;
-        }
-        if (map_it != m_backend_list.end()) 
-            b = *map_it;
     }
-    else
+    // pick up any existing database with named result sets ..
+    // or one which has no result sets.. yet.
+    BackendPtr b; // null for now
+    std::list<BackendPtr>::const_iterator map_it;
+    map_it = m_backend_list.begin();
+    for (; map_it != m_backend_list.end(); map_it++)
     {
-        // new result set.
-
-        // pick up any existing database with named result sets ..
-        // or one which has no result sets.. yet.
-        std::list<BackendPtr>::const_iterator map_it;
-        map_it = m_backend_list.begin();
-        for (; map_it != m_backend_list.end(); map_it++)
+        BackendPtr tmp = *map_it;
+        if (tmp->m_frontend_databases == databases &&
+            (tmp->m_named_result_sets ||
+             tmp->m_number_of_sets == 0))
         {
-            BackendPtr tmp = *map_it;
-            if (tmp->m_frontend_databases == databases &&
-                (tmp->m_named_result_sets ||
-                 tmp->m_number_of_sets == 0))
-                break;
-        }
-        if (map_it != m_backend_list.end()) 
             b = *map_it;
+            break;
+        }
     }
     if (!b)  // no backend yet. Must create a new one
     {