only clean details and annotations when this tamplate no longer exists on any zone

Author: Daan Hoogland

server/src/main/java/com/cloud/template/HypervisorTemplateAdapter.java

@@ -295,7 +295,7 @@ public VMTemplateVO create(TemplateProfile profile) {
     }
 
     /**
-     * For each zone ID in {@link TemplateProfile#zoneIdList}, verifies if there is active heuristic rules for allocating template and returns the
+     * For each zone ID in {@link TemplateProfile#getZoneIdList()}, verifies if there is active heuristic rules for allocating template and returns the
      * {@link DataStore} returned by the heuristic rule. If there is not an active heuristic rule, then allocate it to a random {@link DataStore}, if the ISO/template is private
      * or allocate it to all {@link DataStore} in the zone, if it is public.
      * @param profile
@@ -456,10 +456,10 @@ public List<TemplateOrVolumePostUploadCommand> doInTransaction(TransactionStatus
 
     /**
      * If the template/ISO is marked as private, then it is allocated to a random secondary storage; otherwise, allocates to every storage pool in every zone given by the
-     * {@link TemplateProfile#zoneIdList}.
+     * {@link TemplateProfile#getZoneIdList()}.
      */
     private void postUploadAllocation(List<DataStore> imageStores, VMTemplateVO template, List<TemplateOrVolumePostUploadCommand> payloads) {
-        Set<Long> zoneSet = new HashSet<Long>();
+        Set<Long> zoneSet = new HashSet<>();
         Collections.shuffle(imageStores);
         for (DataStore imageStore : imageStores) {
             Long zoneId_is = imageStore.getScope().getScopeId();
@@ -702,8 +702,8 @@ public boolean delete(TemplateProfile profile) {
             }
 
             // delete all cache entries for this template
-            List<TemplateInfo> cacheTmpls = imageFactory.listTemplateOnCache(template.getId());
-            for (TemplateInfo tmplOnCache : cacheTmpls) {
+            List<TemplateInfo> cachedTemplates = imageFactory.listTemplateOnCache(template.getId());
+            for (TemplateInfo tmplOnCache : cachedTemplates) {
                 s_logger.info("Delete template: " + tmplOnCache.getId() + " from image cache store: " + tmplOnCache.getDataStore().getName());
                 tmplOnCache.delete();
             }
@@ -732,27 +732,32 @@ public boolean delete(TemplateProfile profile) {
             }
 
             // remove its related ACL permission
-            Pair<Class<?>, Long> tmplt = new Pair<Class<?>, Long>(VirtualMachineTemplate.class, template.getId());
-            _messageBus.publish(_name, EntityManager.MESSAGE_REMOVE_ENTITY_EVENT, PublishScope.LOCAL, tmplt);
-
-            checkAndRemoveTemplateDetails(template);
-
-            // Remove comments (if any)
-            AnnotationService.EntityType entityType = template.getFormat().equals(ImageFormat.ISO) ?
-                    AnnotationService.EntityType.ISO : AnnotationService.EntityType.TEMPLATE;
-            annotationDao.removeByEntityType(entityType.name(), template.getUuid());
+            Pair<Class<?>, Long> templateClassForId = new Pair<>(VirtualMachineTemplate.class, template.getId());
+            _messageBus.publish(_name, EntityManager.MESSAGE_REMOVE_ENTITY_EVENT, PublishScope.LOCAL, templateClassForId);
 
+            List<VMTemplateZoneVO> zoneRegistrations = templateZoneDao.listByTemplateId(template.getId());
+            if (zoneRegistrations.isEmpty()) {
+                removeTemplateDetails(template);
+                removeTemplateAnnotations(template);
+            }
         }
         return success;
     }
 
+    private void removeTemplateAnnotations(VMTemplateVO template) {
+        // Remove comments (if any)
+        AnnotationService.EntityType entityType = template.getFormat().equals(ImageFormat.ISO) ?
+                AnnotationService.EntityType.ISO : AnnotationService.EntityType.TEMPLATE;
+        annotationDao.removeByEntityType(entityType.name(), template.getUuid());
+    }
+
     /**
      * removes details of the template and
      * if the template is registered as deploy as is,
      * then it also deletes the details related to deploy as is only if there are no VMs using the template
      * @param template
      */
-    void checkAndRemoveTemplateDetails(VMTemplateVO template) {
+    private void removeTemplateDetails(VMTemplateVO template) {
         templateDetailsDao.removeDetails(template.getId());
 
         if (template.isDeployAsIs()) {