Avoid empty struct becuase some compilers dont like it.

[pazpar2-moved-to-github.git] / src / pazpar2.c

diff --git a/src/pazpar2.c b/src/pazpar2.c
index 17ce62f..b5a0ee7 100644 (file)
--- a/src/pazpar2.c
+++ b/src/pazpar2.c
@@ -1,4 +1,4 @@
-/* $Id: pazpar2.c,v 1.20 2007-01-08 19:39:12 quinn Exp $ */;
+/* $Id: pazpar2.c,v 1.22 2007-01-09 22:06:49 quinn Exp $ */;
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -424,6 +424,35 @@ static xmlDoc *normalize_record(struct client *cl, Z_External *rec)
     return rdoc;
 }
 
+// Extract what appears to be years from buf, storing highest and
+// lowest values.
+static int extract_years(const char *buf, int *first, int *last)
+{
+    *first = -1;
+    *last = -1;
+    while (*buf)
+    {
+        const char *e;
+        int len;
+
+        while (*buf && !isdigit(*buf))
+            buf++;
+        len = 0;
+        for (e = buf; *e && isdigit(*e); e++)
+            len++;
+        if (len == 4)
+        {
+            int value = atoi(buf);
+            if (*first < 0 || value < *first)
+                *first = value;
+            if (*last < 0 || value > *last)
+                *last = value;
+        }
+        buf = e;
+    }
+    return *first;
+}
+
 static struct record *ingest_record(struct client *cl, Z_External *rec)
 {
     xmlDoc *xdoc = normalize_record(cl, rec);
@@ -449,18 +478,15 @@ static struct record *ingest_record(struct client *cl, Z_External *rec)
 
     res = nmem_malloc(se->nmem, sizeof(struct record));
     res->next = 0;
-    res->target_offset = -1;
-    res->term_frequency_vec = 0;
     res->metadata = nmem_malloc(se->nmem,
             sizeof(struct record_metadata*) * service->num_metadata);
     bzero(res->metadata, sizeof(struct record_metadata*) * service->num_metadata);
-    res->relevance = 0;
 
     mergekey_norm = nmem_strdup(se->nmem, (char*) mergekey);
     xmlFree(mergekey);
     normalize_mergekey(mergekey_norm);
 
-    cluster = reclist_insert(se->reclist, res, mergekey_norm);
+    cluster = reclist_insert(se->reclist, res, mergekey_norm, &se->total_merged);
     if (!cluster)
     {
         /* no room for record */
@@ -487,6 +513,7 @@ static struct record *ingest_record(struct client *cl, Z_External *rec)
             struct conf_metadata *md = 0;
             struct record_metadata **wheretoput, *newm;
             int imeta;
+            int first, last;
 
             // First, find out what field we're looking at
             for (imeta = 0; imeta < service->num_metadata; imeta++)
@@ -514,11 +541,21 @@ static struct record *ingest_record(struct client *cl, Z_External *rec)
             {
                 newm->data.text = nmem_strdup(se->nmem, value);
             }
+            else if (md->type == Metadata_type_year)
+            {
+                if (extract_years(value, &first, &last) < 0)
+                    continue;
+            }
             else
             {
                 yaz_log(YLOG_WARN, "Unknown type in metadata element %s", type);
                 continue;
             }
+            if (md->type == Metadata_type_year && md->merge != Metadata_merge_range)
+            {
+                yaz_log(YLOG_WARN, "Only range merging supported for years");
+                continue;
+            }
             if (md->merge == Metadata_merge_unique)
             {
                 struct record_metadata *mnode;
@@ -542,6 +579,23 @@ static struct record *ingest_record(struct client *cl, Z_External *rec)
                 newm->next = *wheretoput;
                 *wheretoput = newm;
             }
+            else if (md->merge == Metadata_merge_range)
+            {
+                assert(md->type == Metadata_type_year);
+                if (!*wheretoput)
+                {
+                    *wheretoput = newm;
+                    (*wheretoput)->data.year.year1 = first;
+                    (*wheretoput)->data.year.year2 = last;
+                }
+                else
+                {
+                    if (first < (*wheretoput)->data.year.year1)
+                        (*wheretoput)->data.year.year1 = first;
+                    if (last > (*wheretoput)->data.year.year2)
+                        (*wheretoput)->data.year.year2 = last;
+                }
+            }
             else
                 yaz_log(YLOG_WARN, "Don't know how to merge on element name %s", md->name);
 
@@ -1158,7 +1212,7 @@ char *search(struct session *se, char *query)
         se->reclist = reclist_create(se->nmem, maxrecs);
         extract_terms(se->nmem, query, p);
         se->relevance = relevance_create(se->nmem, (const char **) p, maxrecs);
-        se->total_records = se->total_hits = 0;
+        se->total_records = se->total_hits = se->total_merged = 0;
         se->expected_maxrecs = maxrecs;
     }
     else
@@ -1247,6 +1301,17 @@ void report_nmem_stats(void)
 }
 #endif
 
+struct record_cluster *show_single(struct session *s, int id)
+{
+    struct record_cluster *r;
+
+    reclist_rewind(s->reclist);
+    while ((r = reclist_read_record(s->reclist)))
+        if (r->recid == id)
+            return r;
+    return 0;
+}
+
 struct record_cluster **show(struct session *s, int start, int *num, int *total,
                      int *sumhits, NMEM nmem_show)
 {