fixes the date range query in getNumItems() for Solr 9 by adding the time

Author: nwoodward

dspace-api/src/main/java/org/dspace/app/statistics/LogAnalyser.java

@@ -16,6 +16,7 @@
 import java.sql.SQLException;
 import java.time.Instant;
 import java.time.LocalDate;
+import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
 import java.util.ArrayList;
@@ -1083,13 +1084,13 @@ public static LocalDate parseDate(String date) {
 
 
     /**
-     * Take the date object and convert it into a string of the form YYYY-MM-DD
+     * Take the date object and convert it into an Instant datetime object of the form YYYY-MM-DDTHH:MM:SSZ
      *
      * @param date the date to be converted
-     * @return A string of the form YYYY-MM-DD
+     * @return An Instant datetime object of the form YYYY-MM-DDTHH:MM:SSZ
      */
-    public static String unParseDate(LocalDate date) {
-        return DateTimeFormatter.ISO_LOCAL_DATE.format(date);
+    public static Instant convertDate(LocalDate date) {
+        return date.atStartOfDay(ZoneId.systemDefault()).toInstant();
     }
 
 
@@ -1219,13 +1220,13 @@ public static Integer getNumItems(Context context, String type)
         StringBuilder accessionedQuery = new StringBuilder();
         accessionedQuery.append("dc.date.accessioned_dt:[");
         if (startDate != null) {
-            accessionedQuery.append(unParseDate(startDate));
+            accessionedQuery.append(convertDate(startDate));
         } else {
             accessionedQuery.append("*");
         }
         accessionedQuery.append(" TO ");
         if (endDate != null) {
-            accessionedQuery.append(unParseDate(endDate));
+            accessionedQuery.append(convertDate(endDate));
         } else {
             accessionedQuery.append("*");
         }