DATAREST-836 Provide ability to handle 'after' Http findOne event

spring-data-rest-core/src/main/java/org/springframework/data/rest/core/annotation/HandleAfterFindOne.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2013-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.rest.core.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * @author Pavel Varchenko
+ */
+@Target({ ElementType.TYPE, ElementType.METHOD })
+@Retention(RetentionPolicy.RUNTIME)
+@Inherited
+public @interface HandleAfterFindOne {
+}

spring-data-rest-core/src/main/java/org/springframework/data/rest/core/event/AfterFindOneEvent.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2013-2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.rest.core.event;
+
+/**
+ * Emitted after entity was found by Id.
+ *
+ * @author Pavel Varchenko
+ */
+public class AfterFindOneEvent extends RepositoryEvent {
+
+    public AfterFindOneEvent(Object source) {
+        super(source);
+    }
+}

spring-data-rest-core/src/main/java/org/springframework/data/rest/core/event/AnnotatedEventHandlerInvoker.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,6 +29,7 @@
 import org.springframework.core.annotation.AnnotationUtils;
 import org.springframework.data.rest.core.annotation.HandleAfterCreate;
 import org.springframework.data.rest.core.annotation.HandleAfterDelete;
+import org.springframework.data.rest.core.annotation.HandleAfterFindOne;
 import org.springframework.data.rest.core.annotation.HandleAfterLinkDelete;
 import org.springframework.data.rest.core.annotation.HandleAfterLinkSave;
 import org.springframework.data.rest.core.annotation.HandleAfterSave;
@@ -49,6 +50,7 @@
  * 
  * @author Jon Brisbin
  * @author Oliver Gierke
+ * @author Pavel Varchenko
  */
 public class AnnotatedEventHandlerInvoker implements ApplicationListener<RepositoryEvent>, BeanPostProcessor {
 
@@ -135,6 +137,7 @@ public void doWith(Method method) throws IllegalArgumentException, IllegalAccess
 				inspect(bean, method, HandleAfterDelete.class, AfterDeleteEvent.class);
 				inspect(bean, method, HandleBeforeLinkDelete.class, BeforeLinkDeleteEvent.class);
 				inspect(bean, method, HandleAfterLinkDelete.class, AfterLinkDeleteEvent.class);
+				inspect(bean, method, HandleAfterFindOne.class, AfterFindOneEvent.class);
 			}
 		}, Methods.USER_METHODS);
 

spring-data-rest-core/src/test/java/org/springframework/data/rest/core/context/RepositoryEventIntegrationTests.java

@@ -31,6 +31,7 @@
 import org.springframework.data.rest.core.domain.PersonRepository;
 import org.springframework.data.rest.core.event.AfterCreateEvent;
 import org.springframework.data.rest.core.event.AfterDeleteEvent;
+import org.springframework.data.rest.core.event.AfterFindOneEvent;
 import org.springframework.data.rest.core.event.AfterLinkDeleteEvent;
 import org.springframework.data.rest.core.event.AfterLinkSaveEvent;
 import org.springframework.data.rest.core.event.AfterSaveEvent;
@@ -48,6 +49,7 @@
  * 
  * @author Jon Brisbin
  * @author Oliver Gierke
+ * @author Pavel Varchenko
  */
 @RunWith(SpringJUnit4ClassRunner.class)
 @ContextConfiguration
@@ -161,4 +163,12 @@ public void shouldDispatchBeforeLinkDelete() throws Exception {
 	public void shouldDispatchAfterLinkDelete() throws Exception {
 		appCtx.publishEvent(new AfterLinkDeleteEvent(person, new Object()));
 	}
+
+	/**
+	 * @see DATAREST-836
+	 */
+	@Test(expected = EventHandlerInvokedException.class)
+	public void shouldDispatchAfterFindOne() throws Exception {
+		appCtx.publishEvent(new AfterFindOneEvent(person));
+	}
 }

spring-data-rest-core/src/test/java/org/springframework/data/rest/core/domain/AnnotatedPersonEventHandler.java

@@ -15,30 +15,22 @@
  */
 package org.springframework.data.rest.core.domain;
 
-import org.springframework.data.rest.core.annotation.HandleAfterCreate;
-import org.springframework.data.rest.core.annotation.HandleAfterDelete;
-import org.springframework.data.rest.core.annotation.HandleAfterLinkDelete;
-import org.springframework.data.rest.core.annotation.HandleAfterLinkSave;
-import org.springframework.data.rest.core.annotation.HandleAfterSave;
-import org.springframework.data.rest.core.annotation.HandleBeforeCreate;
-import org.springframework.data.rest.core.annotation.HandleBeforeDelete;
-import org.springframework.data.rest.core.annotation.HandleBeforeLinkDelete;
-import org.springframework.data.rest.core.annotation.HandleBeforeLinkSave;
-import org.springframework.data.rest.core.annotation.HandleBeforeSave;
-import org.springframework.data.rest.core.annotation.RepositoryEventHandler;
+import org.springframework.data.rest.core.annotation.*;
 
 /**
  * Sample annotation-based event handler.
  * 
  * @author Jon Brisbin
  * @author Oliver Gierke
+ * @author Pavel Varchenko
  */
 @RepositoryEventHandler
 public class AnnotatedPersonEventHandler {
 
 	@HandleAfterCreate
 	@HandleAfterDelete
 	@HandleAfterSave
+	@HandleAfterFindOne
 	public void handleAfter(Person p) {
 		throw new EventHandlerInvokedException();
 	}

spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryEntityController.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2015 the original author or authors.
+ * Copyright 2013-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,6 +37,7 @@
 import org.springframework.data.rest.core.config.RepositoryRestConfiguration;
 import org.springframework.data.rest.core.event.AfterCreateEvent;
 import org.springframework.data.rest.core.event.AfterDeleteEvent;
+import org.springframework.data.rest.core.event.AfterFindOneEvent;
 import org.springframework.data.rest.core.event.AfterSaveEvent;
 import org.springframework.data.rest.core.event.BeforeCreateEvent;
 import org.springframework.data.rest.core.event.BeforeDeleteEvent;
@@ -75,6 +76,7 @@
  * @author Oliver Gierke
  * @author Greg Turnquist
  * @author Jeremy Rickard
+ * @author Pavel Varchenko
  */
 @RepositoryRestController
 class RepositoryEntityController extends AbstractRepositoryRestController implements ApplicationEventPublisherAware {
@@ -313,6 +315,7 @@ public ResponseEntity<?> headForItemResource(RootResourceInformation resourceInf
 		if (domainObject == null) {
 			throw new ResourceNotFoundException();
 		}
+		publisher.publishEvent(new AfterFindOneEvent(domainObject));
 
 		Links links = new Links(assembler.toResource(domainObject).getLinks());