Merged in task/dspace-cris-2024_02_x/DSC-2823 (pull request DSpace#5726)

[DSC-2823] record statistics for download presigned URL

Approved-by: Vincenzo Mecca

Author: steph-ieffam

dspace-server-webapp/src/main/java/org/dspace/app/rest/BitstreamRestController.java

@@ -324,6 +324,14 @@ public ResponseEntity<?> getPresignedUrl(@PathVariable UUID uuid,
             return null;
         }
 
+        // Fire a download/view event for Solr statistics
+        eventService.fireEvent(
+            new UsageEvent(
+                UsageEvent.Action.VIEW,
+                request,
+                context,
+                bitstream));
+
         try {
             String presignedUrl = bitstreamStorageService.getPresignedUrl(context, bitstream);
             if (StringUtils.isBlank(presignedUrl)) {

dspace-server-webapp/src/test/java/org/dspace/app/rest/BitstreamRestControllerIT.java

@@ -1800,6 +1800,33 @@ public void testGetPresignedUrl_BitstreamNotFound() throws Exception {
             .andExpect(status().isNotFound());
     }
 
+    @Test
+    public void testGetPresignedUrl_LogsStatisticsEvent() throws Exception {
+        // Grant READ access to eperson
+        context.turnOffAuthorisationSystem();
+        createResourcePolicy(context, eperson, null)
+            .withAction(READ)
+            .withDspaceObject(bitstream)
+            .build();
+        context.restoreAuthSystemState();
+
+        // Verify no stats records exist yet
+        checkNumberOfStatsRecords(bitstream, 0);
+
+        String authToken = getAuthToken(eperson.getEmail(), password);
+        getClient(authToken)
+            .perform(get("/api/core/bitstreams/" + bitstream.getID() + "/signedurl"));
+
+        // Verify that a statistics record was logged
+        checkNumberOfStatsRecords(bitstream, 1);
+
+        // Call again to verify it increments
+        getClient(authToken)
+            .perform(get("/api/core/bitstreams/" + bitstream.getID() + "/signedurl"));
+
+        checkNumberOfStatsRecords(bitstream, 2);
+    }
+
     @Test
     public void testGetPresignedUrl_PresignedUrlNotAvailable() throws Exception {
         // Grant READ access to eperson