Added component annotations.

Added comment.

Fixed import.

dspace-api/src/main/java/org/dspace/iiif/CacheEvictBeanLocator.java

@@ -6,13 +6,16 @@
  * http://www.dspace.org/license/
  */
 package org.dspace.iiif;
+
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
+import org.springframework.stereotype.Component;
 
 /**
  * Exposes the Spring web application's IIIF cache evict service to the DSpace event consumer.
  */
+@Component
 public class CacheEvictBeanLocator implements ApplicationContextAware {
 
     private static ApplicationContext context;

dspace-api/src/main/java/org/dspace/iiif/CacheEvictService.java

@@ -9,10 +9,12 @@ package org.dspace.iiif;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cache.CacheManager;
+import org.springframework.stereotype.Component;
 
 /**
  * Removes items from the iiif manifests cache.
  */
+@Component
 public class CacheEvictService {
 
     // The cache that is managed by this service.

dspace-api/src/main/java/org/dspace/iiif/IIIFCacheEventConsumer.java

@@ -45,6 +45,7 @@ public class IIIFCacheEventConsumer implements Consumer {
 
     @Override
     public void consume(Context ctx, Event event) throws Exception {
+        // The service null when the web application context is not provided (i.e. command line operations).
         if (cacheEvictService == null) {
             return;
         }

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

@@ -21,8 +21,6 @@ import org.dspace.app.rest.utils.DSpaceConfigurationInitializer;
 import org.dspace.app.rest.utils.DSpaceKernelInitializer;
 import org.dspace.app.sitemap.GenerateSitemaps;
 import org.dspace.app.util.DSpaceContextListener;
-import org.dspace.iiif.CacheEvictBeanLocator;
-import org.dspace.iiif.CacheEvictService;
 import org.dspace.utils.servlet.DSpaceWebappServletFilter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;