Embedded XSLT stylesheets for service
[pazpar2-moved-to-github.git] / src / pazpar2_config.c
index 8fec8cc..dd1c570 100644 (file)
@@ -41,6 +41,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "ppmutex.h"
 #include "incref.h"
 #include "pazpar2_config.h"
+#include "service_xslt.h"
 #include "settings.h"
 #include "eventl.h"
 #include "http.h"
@@ -56,10 +57,13 @@ struct conf_config
     database_hosts_t database_hosts;
 };
 
-
-static char *parse_settings(struct conf_config *config,
-                            NMEM nmem, xmlNode *node);
-
+struct service_xslt
+{
+    char *id;
+    xsltStylesheetPtr xsp;
+    struct service_xslt *next;
+};
+    
 static void conf_metadata_assign(NMEM nmem, 
                                  struct conf_metadata * metadata,
                                  const char *name,
@@ -71,7 +75,7 @@ static void conf_metadata_assign(NMEM nmem,
                                  int rank,
                                  int sortkey_offset,
                                  enum conf_metadata_mergekey mt,
-                                 const char *icu_chain)
+                                 const char *facetrule)
 {
     assert(nmem && metadata && name);
     
@@ -91,7 +95,7 @@ static void conf_metadata_assign(NMEM nmem,
     metadata->rank = rank;    
     metadata->sortkey_offset = sortkey_offset;
     metadata->mergekey = mt;
-    metadata->icu_chain = nmem_strdup_null(nmem, icu_chain);
+    metadata->facetrule = nmem_strdup_null(nmem, facetrule);
 }
 
 
@@ -106,7 +110,6 @@ static void conf_sortkey_assign(NMEM nmem,
     sortkey->type = type;
 }
 
-
 static struct conf_service *service_init(struct conf_server *server,
                                          int num_metadata, int num_sortkeys,
                                          const char *service_id)
@@ -119,8 +122,8 @@ static struct conf_service *service_init(struct conf_server *server,
     service->ref_count = 1;
     service->nmem = nmem;
     service->next = 0;
-    service->settings = 0;
     service->databases = 0;
+    service->xslt_list = 0;
     service->server = server;
     service->session_timeout = 60; /* default session timeout */
     service->z3950_session_timeout = 180;
@@ -132,9 +135,9 @@ static struct conf_service *service_init(struct conf_server *server,
     service->num_metadata = num_metadata;
     service->metadata = 0;
     if (service->num_metadata)
-      service->metadata 
-          = nmem_malloc(nmem, 
-                        sizeof(struct conf_metadata) * service->num_metadata);
+        service->metadata 
+            = nmem_malloc(nmem, 
+                          sizeof(struct conf_metadata) * service->num_metadata);
     service->num_sortkeys = num_sortkeys;
     service->sortkeys = 0;
     if (service->num_sortkeys)
@@ -157,7 +160,7 @@ static struct conf_metadata* conf_service_add_metadata(
     int rank,
     int sortkey_offset,
     enum conf_metadata_mergekey mt,
-    const char *icu_chain)
+    const char *facetrule)
 {
     struct conf_metadata * md = 0;
 
@@ -168,11 +171,10 @@ static struct conf_metadata* conf_service_add_metadata(
     md = service->metadata + field_id;
     conf_metadata_assign(service->nmem, md, name, type, merge, setting,
                          brief, termlist, rank, sortkey_offset,
-                         mt, icu_chain);
+                         mt, facetrule);
     return md;
 }
 
-
 static struct conf_sortkey * conf_service_add_sortkey(
     struct conf_service *service,
     int field_id,
@@ -182,7 +184,7 @@ static struct conf_sortkey * conf_service_add_sortkey(
     struct conf_sortkey * sk = 0;
 
     if (!service || !service->sortkeys || !service->num_sortkeys
-        || field_id < 0  || !(field_id < service->num_sortkeys))
+        || field_id < 0 || !(field_id < service->num_sortkeys))
         return 0;
 
     //sk = &((service->sortkeys)[field_id]);
@@ -192,7 +194,6 @@ static struct conf_sortkey * conf_service_add_sortkey(
     return sk;
 }
 
-
 int conf_service_metadata_field_id(struct conf_service *service,
                                    const char * name)
 {
@@ -200,16 +201,13 @@ int conf_service_metadata_field_id(struct conf_service *service,
 
     if (!service || !service->metadata || !service->num_metadata)
         return -1;
-
-    for(i = 0; i < service->num_metadata; i++) {
+    
+    for (i = 0; i < service->num_metadata; i++)
         if (!strcmp(name, (service->metadata[i]).name))
             return i;
-    }
-   
     return -1;
 }
 
-
 int conf_service_sortkey_field_id(struct conf_service *service,
                                   const char * name)
 {
@@ -218,11 +216,9 @@ int conf_service_sortkey_field_id(struct conf_service *service,
     if (!service || !service->sortkeys || !service->num_sortkeys)
         return -1;
 
-    for(i = 0; i < service->num_sortkeys; i++) {
+    for (i = 0; i < service->num_sortkeys; i++)
         if (!strcmp(name, (service->sortkeys[i]).name))
             return i;
-    }
-   
     return -1;
 }
 
@@ -243,6 +239,7 @@ void service_destroy(struct conf_service *service)
     {
         if (!pazpar2_decref(&service->ref_count, service->mutex))
         {
+            service_xslt_destroy(service);
             pp2_charset_fact_destroy(service->charsets);
             yaz_mutex_destroy(&service->mutex);
             nmem_destroy(service->nmem);
@@ -263,7 +260,6 @@ static int parse_metadata(struct conf_service *service, xmlNode *n,
     enum conf_metadata_type type = Metadata_type_generic;
     enum conf_metadata_merge merge = Metadata_merge_no;
     enum conf_setting_type setting = Metadata_setting_no;
-    enum conf_sortkey_type sk_type = Metadata_sortkey_relevance;
     enum conf_metadata_mergekey mergekey_type = Metadata_mergekey_no;
     int brief = 0;
     int termlist = 0;
@@ -309,7 +305,7 @@ static int parse_metadata(struct conf_service *service, xmlNode *n,
         else if (!xmlStrcmp(attr->name, BAD_CAST "mergekey") &&
                  attr->children && attr->children->type == XML_TEXT_NODE)
             xml_mergekey = attr->children->content;
-        else if (!xmlStrcmp(attr->name, BAD_CAST "icu_chain") &&
+        else if (!xmlStrcmp(attr->name, BAD_CAST "facetrule") &&
                  attr->children && attr->children->type == XML_TEXT_NODE)
             xml_icu_chain = attr->children->content;
         else
@@ -405,6 +401,7 @@ static int parse_metadata(struct conf_service *service, xmlNode *n,
     // add a sortkey if so specified
     if (xml_sortkey && strcmp((const char *) xml_sortkey, "no"))
     {
+        enum conf_sortkey_type sk_type;
         if (merge == Metadata_merge_no)
         {
             yaz_log(YLOG_FATAL, 
@@ -555,6 +552,11 @@ static struct conf_service *service_create_static(struct conf_server *server,
             if (parse_metadata(service, n, &md_node, &sk_node))
                 return 0;
         }
+        else if (!strcmp((const char *) n->name, (const char *) "xslt"))
+        {
+            if (service_xslt_config(service, n))
+                return 0;
+        }
         else
         {
             yaz_log(YLOG_FATAL, "Bad element: %s", n->name);
@@ -594,39 +596,17 @@ static struct conf_service *service_create_static(struct conf_server *server,
     return service;
 }
 
-static char *parse_settings(struct conf_config *config,
-                            NMEM nmem, xmlNode *node)
-{
-    xmlChar *src = xmlGetProp(node, (xmlChar *) "src");
-    char *r;
-
-    if (src)
-    {
-        WRBUF w = wrbuf_alloc();
-        conf_dir_path(config, w, (const char *) src);
-        r = nmem_strdup(nmem, wrbuf_cstr(w));
-        wrbuf_destroy(w);
-    }
-    else
-    {
-        yaz_log(YLOG_FATAL, "Must specify src in targetprofile");
-        return 0;
-    }
-    xmlFree(src);
-    return r;
-}
-
 static void inherit_server_settings(struct conf_service *s)
 {
     struct conf_server *server = s->server;
     if (!s->dictionary) /* service has no config settings ? */
     {
-        if (server->server_settings)
+        if (server->settings_fname)
         {
             /* inherit settings from server */
             init_settings(s);
-            settings_read_file(s, server->server_settings, 1);
-            settings_read_file(s, server->server_settings, 2);
+            settings_read_file(s, server->settings_fname, 1);
+            settings_read_file(s, server->settings_fname, 2);
         }
         else
         {
@@ -660,7 +640,6 @@ struct conf_service *service_create(struct conf_server *server,
     if (service)
     {
         inherit_server_settings(service);
-        resolve_databases(service);
         assert(service->mutex == 0);
         pazpar2_mutex_create(&service->mutex, "conf");
     }
@@ -683,10 +662,10 @@ static struct conf_server *server_create(struct conf_config *config,
     server->config = config;
     server->next = 0;
     server->charsets = 0;
-    server->server_settings = 0;
     server->http_server = 0;
     server->iochan_man = 0;
-    server->database_hosts = 0;
+    server->database_hosts = config->database_hosts;
+    server->settings_fname = 0;
 
     if (server_id)
     {
@@ -727,13 +706,24 @@ static struct conf_server *server_create(struct conf_config *config,
         }
         else if (!strcmp((const char *) n->name, "settings"))
         {
-            if (server->server_settings)
+            xmlChar *src = xmlGetProp(n, (xmlChar *) "src");
+            WRBUF w;
+            if (!src)
             {
-                yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
+                yaz_log(YLOG_FATAL, "Missing src attribute for settings");
                 return 0;
             }
-            if (!(server->server_settings = parse_settings(config, nmem, n)))
+            if (server->settings_fname)
+            {
+                xmlFree(src);
+                yaz_log(YLOG_FATAL, "Can't repeat 'settings'");
                 return 0;
+            }
+            w = wrbuf_alloc();
+            conf_dir_path(config, w, (const char *) src);
+            server->settings_fname = nmem_strdup(nmem, wrbuf_cstr(w));
+            wrbuf_destroy(w);
+            xmlFree(src);
         }
         else if (!strcmp((const char *) n->name, "icu_chain"))
         {
@@ -912,7 +902,7 @@ struct conf_config *config_create(const char *fname, int verbose)
     config->servers = 0;
     config->no_threads = 0;
     config->iochan_man = 0;
-    config->database_hosts = 0;
+    config->database_hosts = database_hosts_create();
 
     config->confdir = wrbuf_alloc();
     if ((p = strrchr(fname, 
@@ -979,9 +969,8 @@ void config_destroy(struct conf_config *config)
             struct conf_server *s_next = server->next;
             server_destroy(server);
             server = s_next;
+            database_hosts_destroy(&config->database_hosts);
         }
-        database_hosts_destroy(&config->database_hosts);
-
         wrbuf_destroy(config->confdir);
         nmem_destroy(config->nmem);
     }
@@ -998,22 +987,18 @@ void config_process_events(struct conf_config *conf)
 {
     struct conf_server *ser;
     
-    conf->database_hosts = database_hosts_create();
     for (ser = conf->servers; ser; ser = ser->next)
     {
         struct conf_service *s = ser->service;
 
-        ser->database_hosts = conf->database_hosts;
-
         for (;s ; s = s->next)
         {
-            resolve_databases(s);
             assert(s->mutex == 0);
             pazpar2_mutex_create(&s->mutex, "service");
         }
         http_mutex_init(ser);
     }
-    iochan_man_events(conf->iochan_man);    
+    iochan_man_events(conf->iochan_man);
 }
 
 int config_start_listeners(struct conf_config *conf,