From: Adam Dickmeiss <adam@indexdata.dk>
Date: Fri, 6 May 2011 12:57:26 +0000 (+0200)
Subject: GFS: convert to CQL sortkeys if CQL to PQF is used
X-Git-Tag: v4.2.0~30
X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=commitdiff_plain;h=bdc72ca302452e555308e716c2f1e1743866a9ef

GFS: convert to CQL sortkeys if CQL to PQF is used

If CQL to PQF is in use by GFS, then it will also parse CQL sortby
material and convert it to srw_sortkeys.
---

diff --git a/src/seshigh.c b/src/seshigh.c
index 4d5eb7e..ddb7288 100644
--- a/src/seshigh.c
+++ b/src/seshigh.c
@@ -755,7 +755,7 @@ static int srw_bend_fetch(association *assoc, int pos,
 }
 
 static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
-                   Z_Query *query_result)
+                   Z_Query *query_result, char **sortkeys_p)
 {
     /* have a CQL query and  CQL to PQF transform .. */
     CQL_parser cp = cql_parser_create();
@@ -763,7 +763,8 @@ static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
     int srw_errcode = 0;
     const char *add = 0;
     char rpn_buf[5120];
-            
+         
+    *sortkeys_p = 0;
     r = cql_parser_string(cp, cql);
     if (r)
     {
@@ -771,12 +772,29 @@ static int cql2pqf(ODR odr, const char *cql, cql_transform_t ct,
     }
     if (!r)
     {
+        struct cql_node *cn = cql_parser_result(cp);
+
         /* Syntax OK */
-        r = cql_transform_buf(ct,
-                              cql_parser_result(cp),
-                              rpn_buf, sizeof(rpn_buf)-1);
+        r = cql_transform_buf(ct, cn, rpn_buf, sizeof(rpn_buf)-1);
         if (r)
             srw_errcode = cql_transform_error(ct, &add);
+        else
+        {
+            char out[100];
+            int r = cql_sortby_to_sortkeys_buf(cn, out, sizeof(out)-1);
+    
+            if (r == 0)
+            {
+                if (*out)
+                    yaz_log (log_requestdetail, "srw_sortKeys '%s'", out);
+                *sortkeys_p = odr_strdup(odr, out);
+            }
+            else
+            {
+                yaz_log(log_requestdetail, "failed to create srw_sortKeys");
+                srw_errcode = YAZ_SRW_UNSUPP_SORT_TYPE;
+            }
+        }
     }
     if (!r)
     {
@@ -809,7 +827,8 @@ static int cql2pqf_scan(ODR odr, const char *cql, cql_transform_t ct,
 {
     Z_Query query;
     Z_RPNQuery *rpn;
-    int srw_error = cql2pqf(odr, cql, ct, &query);
+    char *sortkeys = 0;
+    int srw_error = cql2pqf(odr, cql, ct, &query, &sortkeys);
     if (srw_error)
         return srw_error;
     if (query.which != Z_Query_type_1 && query.which != Z_Query_type_101)
@@ -883,7 +902,9 @@ static void srw_bend_search(association *assoc,
             {
                 int srw_errcode = cql2pqf(assoc->encode, srw_req->query.cql,
                                           assoc->server->cql_transform,
-                                          rr.query);
+                                          rr.query,
+                                          &rr.srw_sortKeys);
+
                 if (srw_errcode)
                 {
                     yaz_add_srw_diagnostic(assoc->encode,
@@ -942,9 +963,9 @@ static void srw_bend_search(association *assoc,
             rr.stream = assoc->encode;
             rr.decode = assoc->decode;
             rr.print = assoc->print;
-            if ( srw_req->sort.sortKeys )
+            if (srw_req->sort.sortKeys)
                 rr.srw_sortKeys = odr_strdup(assoc->encode, 
-                                             srw_req->sort.sortKeys );
+                                             srw_req->sort.sortKeys);
             rr.association = assoc;
             rr.hits = 0;
             rr.errcode = 0;
@@ -2628,7 +2649,8 @@ static Z_APDU *process_searchRequest(association *assoc, request *reqb)
             /* have a CQL query and a CQL to PQF transform .. */
             int srw_errcode = 
                 cql2pqf(bsrr->stream, req->query->u.type_104->u.cql,
-                        assoc->server->cql_transform, bsrr->query);
+                        assoc->server->cql_transform, bsrr->query,
+                        &bsrr->srw_sortKeys);
             if (srw_errcode)
                 bsrr->errcode = yaz_diag_srw_to_bib1(srw_errcode);
         }