Add @JsonView deserialization support for request bodies

Jackson 2.5.0 or later is required.

Issue: SPR-12501

spring-web/src/main/java/org/springframework/http/converter/json/AbstractJackson2HttpMessageConverter.java

@@ -203,6 +203,13 @@ public abstract class AbstractJackson2HttpMessageConverter extends AbstractHttpM
 
 	private Object readJavaType(JavaType javaType, HttpInputMessage inputMessage) {
 		try {
+			if (inputMessage instanceof MappingJacksonInputMessage) {
+				Class<?> deserializationView = ((MappingJacksonInputMessage)inputMessage).getDeserializationView();
+				if (deserializationView != null) {
+					return this.objectMapper.readerWithView(deserializationView)
+							.forType(javaType).readValue(inputMessage.getBody());
+				}
+			}
 			return this.objectMapper.readValue(inputMessage.getBody(), javaType);
 		}
 		catch (IOException ex) {

spring-web/src/main/java/org/springframework/http/converter/json/MappingJacksonInputMessage.java

+/*
+ * Copyright 2002-2015 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.http.converter.json;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpInputMessage;
+
+/**
+ * {@link HttpInputMessage} that can eventually stores a Jackson view that will be used
+ * to deserialize the message.
+ *
+ * @author Sebastien Deleuze
+ * @since 4.2
+ */
+public class MappingJacksonInputMessage implements HttpInputMessage {
+
+	private final InputStream body;
+
+	private final HttpHeaders headers;
+
+	private Class<?> deserializationView;
+
+
+	public MappingJacksonInputMessage(InputStream body, HttpHeaders headers) {
+		this.body = body;
+		this.headers = headers;
+	}
+
+	public MappingJacksonInputMessage(InputStream body, HttpHeaders headers, Class<?> deserializationView) {
+		this(body, headers);
+		this.deserializationView = deserializationView;
+	}
+
+
+	public void setDeserializationView(Class<?> deserializationView) {
+		this.deserializationView = deserializationView;
+	}
+
+	public Class<?> getDeserializationView() {
+		return deserializationView;
+	}
+
+	@Override
+	public InputStream getBody() throws IOException {
+		return this.body;
+	}
+
+	@Override
+	public HttpHeaders getHeaders() {
+		return this.headers;
+	}
+
+}

spring-webmvc/src/main/java/org/springframework/web/servlet/config/AnnotationDrivenBeanDefinitionParser.java

@@ -73,6 +73,7 @@ import org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter;
 import org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter;
 import org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver;
 import org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver;
+import org.springframework.web.servlet.mvc.method.annotation.JsonViewRequestBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.JsonViewResponseBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
@@ -221,6 +222,7 @@ class AnnotationDrivenBeanDefinitionParser implements BeanDefinitionParser {
 		handlerAdapterDef.getPropertyValues().add("contentNegotiationManager", contentNegotiationManager);
 		handlerAdapterDef.getPropertyValues().add("webBindingInitializer", bindingDef);
 		handlerAdapterDef.getPropertyValues().add("messageConverters", messageConverters);
+		addRequestBodyAdvice(handlerAdapterDef);
 		addResponseBodyAdvice(handlerAdapterDef);
 
 		if (element.hasAttribute("ignore-default-model-on-redirect")) {
@@ -308,6 +310,13 @@ class AnnotationDrivenBeanDefinitionParser implements BeanDefinitionParser {
 		return null;
 	}
 
+	protected void addRequestBodyAdvice(RootBeanDefinition beanDef) {
+		if (jackson2Present) {
+			beanDef.getPropertyValues().add("requestBodyAdvice",
+					new RootBeanDefinition(JsonViewRequestBodyAdvice.class));
+		}
+	}
+
 	protected void addResponseBodyAdvice(RootBeanDefinition beanDef) {
 		if (jackson2Present) {
 			beanDef.getPropertyValues().add("responseBodyAdvice",

spring-webmvc/src/main/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupport.java

@@ -83,7 +83,9 @@ import org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter;
 import org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter;
 import org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver;
 import org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver;
+import org.springframework.web.servlet.mvc.method.annotation.JsonViewRequestBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.JsonViewResponseBodyAdvice;
+import org.springframework.web.servlet.mvc.method.annotation.RequestBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
 import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
@@ -478,9 +480,13 @@ public class WebMvcConfigurationSupport implements ApplicationContextAware, Serv
 		adapter.setCustomReturnValueHandlers(returnValueHandlers);
 
 		if (jackson2Present) {
-			List<ResponseBodyAdvice<?>> interceptors = new ArrayList<ResponseBodyAdvice<?>>();
-			interceptors.add(new JsonViewResponseBodyAdvice());
-			adapter.setResponseBodyAdvice(interceptors);
+			List<RequestBodyAdvice> requestBodyAdvices = new ArrayList<RequestBodyAdvice>();
+			requestBodyAdvices.add(new JsonViewRequestBodyAdvice());
+			adapter.setRequestBodyAdvice(requestBodyAdvices);
+
+			List<ResponseBodyAdvice<?>> responseBodyAdvices = new ArrayList<ResponseBodyAdvice<?>>();
+			responseBodyAdvices.add(new JsonViewResponseBodyAdvice());
+			adapter.setResponseBodyAdvice(responseBodyAdvices);
 		}
 
 		AsyncSupportConfigurer configurer = new AsyncSupportConfigurer();

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/JsonViewRequestBodyAdvice.java

+/*
+ * Copyright 2002-2015 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.web.servlet.mvc.method.annotation;
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+
+import com.fasterxml.jackson.annotation.JsonView;
+
+import org.springframework.core.MethodParameter;
+import org.springframework.http.HttpInputMessage;
+import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter;
+import org.springframework.http.converter.json.MappingJacksonInputMessage;
+
+/**
+ * A {@code RequestBodyAdvice} implementation that adds support for
+ * Jackson's {@code @JsonView} annotation declared on a Spring MVC
+ * {@code @HttpEntity} and {@code @RequestBody} method parameters.
+ *
+ * <p>The deserialization view specified in the annotation will be passed in to
+ * the {@code MappingJackson2HttpMessageConverter} which will then use it to
+ * deserialize the request body with.
+ *
+ * <p>Note that despite {@code @JsonView} allowing for more than one class to
+ * be specified, the use for a request body advice is only supported with
+ * exactly one class argument. Consider the use of a composite interface.
+ *
+ * <p>Jackson 2.5.0 or later is required.
+ *
+ * @author Sebastien Deleuze
+ * @since 4.2
+ * @see com.fasterxml.jackson.databind.ObjectMapper#readerWithView(Class)
+ */
+public class JsonViewRequestBodyAdvice extends RequestBodyAdviceAdapter {
+
+	@Override
+	public boolean supports(MethodParameter methodParameter, Type targetType,
+			Class<? extends HttpMessageConverter<?>> converterType) {
+		return (AbstractJackson2HttpMessageConverter.class.isAssignableFrom(converterType) &&
+				methodParameter.getParameterAnnotation(JsonView.class) != null);
+	}
+
+	@Override
+	public HttpInputMessage beforeBodyRead(HttpInputMessage inputMessage, MethodParameter methodParameter,
+			Type targetType, Class<? extends HttpMessageConverter<?>> selectedConverterType) throws IOException {
+		JsonView annotation = methodParameter.getParameterAnnotation(JsonView.class);
+		Class<?>[] classes = annotation.value();
+		if (classes.length != 1) {
+			throw new IllegalArgumentException(
+					"@JsonView only supported for request body advice with exactly 1 class argument: " + methodParameter);
+		}
+		return new MappingJacksonInputMessage(inputMessage.getBody(), inputMessage.getHeaders(), classes[0]);
+	}
+
+}

spring-webmvc/src/test/java/org/springframework/web/servlet/config/AnnotationDrivenBeanDefinitionParserTests.java

@@ -40,6 +40,7 @@ import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
 import org.springframework.web.method.support.ModelAndViewContainer;
 import org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping;
 import org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver;
+import org.springframework.web.servlet.mvc.method.annotation.JsonViewRequestBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.JsonViewResponseBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;
@@ -189,7 +190,8 @@ public class AnnotationDrivenBeanDefinitionParserTests {
 		assertNotNull(value);
 		assertTrue(value instanceof List);
 		List<ResponseBodyAdvice> converters = (List<ResponseBodyAdvice>) value;
-		assertTrue(converters.get(0) instanceof JsonViewResponseBodyAdvice);
+		assertTrue(converters.get(0) instanceof JsonViewRequestBodyAdvice);
+		assertTrue(converters.get(1) instanceof JsonViewResponseBodyAdvice);
 	}
 
 }

spring-webmvc/src/test/java/org/springframework/web/servlet/config/annotation/WebMvcConfigurationSupportTests.java

@@ -71,6 +71,7 @@ import org.springframework.web.servlet.handler.ConversionServiceExposingIntercep
 import org.springframework.web.servlet.handler.HandlerExceptionResolverComposite;
 import org.springframework.web.servlet.mvc.annotation.ResponseStatusExceptionResolver;
 import org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver;
+import org.springframework.web.servlet.mvc.method.annotation.JsonViewRequestBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.JsonViewResponseBodyAdvice;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
@@ -190,8 +191,9 @@ public class WebMvcConfigurationSupportTests {
 		DirectFieldAccessor fieldAccessor = new DirectFieldAccessor(adapter);
 		@SuppressWarnings("unchecked")
 		List<Object> interceptors = (List<Object>) fieldAccessor.getPropertyValue("requestResponseBodyAdvice");
-		assertEquals(1, interceptors.size());
-		assertEquals(JsonViewResponseBodyAdvice.class, interceptors.get(0).getClass());
+		assertEquals(2, interceptors.size());
+		assertEquals(JsonViewRequestBodyAdvice.class, interceptors.get(0).getClass());
+		assertEquals(JsonViewResponseBodyAdvice.class, interceptors.get(1).getClass());
 	}
 
 	@Test

spring-webmvc/src/test/java/org/springframework/web/servlet/mvc/method/annotation/RequestResponseBodyMethodProcessorTests.java

@@ -30,6 +30,7 @@ import org.junit.Test;
 import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.aop.target.SingletonTargetSource;
 import org.springframework.core.MethodParameter;
+import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpInputMessage;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
@@ -179,9 +180,7 @@ public class RequestResponseBodyMethodProcessorTests {
 		assertEquals("foobarbaz", result);
 	}
 
-	// SPR-9942
-
-	@Test(expected = HttpMessageNotReadableException.class)
+	@Test(expected = HttpMessageNotReadableException.class)  // SPR-9942
 	public void resolveArgumentRequiredNoContent() throws Exception {
 		this.servletRequest.setContent(new byte[0]);
 		this.servletRequest.setContentType("text/plain");
@@ -191,9 +190,7 @@ public class RequestResponseBodyMethodProcessorTests {
 		processor.resolveArgument(paramString, mavContainer, webRequest, binderFactory);
 	}
 
-	// SPR-12778
-
-	@Test
+	@Test  // SPR-12778
 	public void resolveArgumentRequiredNoContentDefaultValue() throws Exception {
 		this.servletRequest.setContent(new byte[0]);
 		this.servletRequest.setContentType("text/plain");
@@ -205,9 +202,7 @@ public class RequestResponseBodyMethodProcessorTests {
 		assertEquals("default value for empty body", arg);
 	}
 
-	// SPR-9964
-
-	@Test
+	@Test  // SPR-9964
 	public void resolveArgumentTypeVariable() throws Exception {
 		Method method = MyParameterizedController.class.getMethod("handleDto", Identifiable.class);
 		HandlerMethod handlerMethod = new HandlerMethod(new MySimpleParameterizedController(), method);
@@ -227,9 +222,7 @@ public class RequestResponseBodyMethodProcessorTests {
 		assertEquals("Jad", result.getName());
 	}
 
-	// SPR-11225
-
-	@Test
+	@Test  // SPR-11225
 	public void resolveArgumentTypeVariableWithNonGenericConverter() throws Exception {
 		Method method = MyParameterizedController.class.getMethod("handleDto", Identifiable.class);
 		HandlerMethod handlerMethod = new HandlerMethod(new MySimpleParameterizedController(), method);
@@ -251,9 +244,7 @@ public class RequestResponseBodyMethodProcessorTests {
 		assertEquals("Jad", result.getName());
 	}
 
-	// SPR-9160
-
-	@Test
+	@Test  // SPR-9160
 	public void handleReturnValueSortByQuality() throws Exception {
 		this.servletRequest.addHeader("Accept", "text/plain; q=0.5, application/json");
 
@@ -383,9 +374,7 @@ public class RequestResponseBodyMethodProcessorTests {
 		assertFalse(content.contains("<withoutView>without</withoutView>"));
 	}
 
-	// SPR-12149
-
-	@Test
+	@Test  // SPR-12149
 	public void jacksonJsonViewWithResponseEntityAndXmlMessageConverter() throws Exception {
 		Method method = JacksonViewController.class.getMethod("handleResponseEntity");
 		HandlerMethod handlerMethod = new HandlerMethod(new JacksonViewController(), method);
@@ -406,6 +395,112 @@ public class RequestResponseBodyMethodProcessorTests {
 		assertFalse(content.contains("<withoutView>without</withoutView>"));
 	}
 
+	@Test  // SPR-12501
+	public void resolveArgumentWithJacksonJsonView() throws Exception {
+		String content = "{\"withView1\" : \"with\", \"withView2\" : \"with\", \"withoutView\" : \"without\"}";
+		this.servletRequest.setContent(content.getBytes("UTF-8"));
+		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
+
+		Method method = JacksonViewController.class.getMethod("handleRequestBody", JacksonViewBean.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonViewController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = new ArrayList<HttpMessageConverter<?>>();
+		converters.add(new MappingJackson2HttpMessageConverter());
+
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
+				converters, null, Arrays.asList(new JsonViewRequestBodyAdvice()));
+
+		@SuppressWarnings("unchecked")
+		JacksonViewBean result = (JacksonViewBean)processor.resolveArgument(methodParameter,
+				this.mavContainer, this.webRequest, this.binderFactory);
+
+		assertNotNull(result);
+		assertEquals("with", result.getWithView1());
+		assertNull(result.getWithView2());
+		assertNull(result.getWithoutView());
+	}
+
+	@Test  // SPR-12501
+	public void resolveHttpEntityArgumentWithJacksonJsonView() throws Exception {
+		String content = "{\"withView1\" : \"with\", \"withView2\" : \"with\", \"withoutView\" : \"without\"}";
+		this.servletRequest.setContent(content.getBytes("UTF-8"));
+		this.servletRequest.setContentType(MediaType.APPLICATION_JSON_VALUE);
+
+		Method method = JacksonViewController.class.getMethod("handleHttpEntity", HttpEntity.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonViewController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = new ArrayList<HttpMessageConverter<?>>();
+		converters.add(new MappingJackson2HttpMessageConverter());
+
+		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
+				converters, null, Arrays.asList(new JsonViewRequestBodyAdvice()));
+
+		@SuppressWarnings("unchecked")
+		HttpEntity<JacksonViewBean> result = (HttpEntity<JacksonViewBean>)processor.resolveArgument(methodParameter,
+				this.mavContainer, this.webRequest, this.binderFactory);
+
+		assertNotNull(result);
+		assertNotNull(result.getBody());
+		assertEquals("with", result.getBody().getWithView1());
+		assertNull(result.getBody().getWithView2());
+		assertNull(result.getBody().getWithoutView());
+	}
+
+	@Test  // SPR-12501
+	public void resolveArgumentWithJacksonJsonViewAndXmlMessageConverter() throws Exception {
+		String content = "<root><withView1>with</withView1><withView2>with</withView2><withoutView>without</withoutView></root>";
+		this.servletRequest.setContent(content.getBytes("UTF-8"));
+		this.servletRequest.setContentType(MediaType.APPLICATION_XML_VALUE);
+
+		Method method = JacksonViewController.class.getMethod("handleRequestBody", JacksonViewBean.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonViewController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = new ArrayList<HttpMessageConverter<?>>();
+		converters.add(new MappingJackson2XmlHttpMessageConverter());
+
+		RequestResponseBodyMethodProcessor processor = new RequestResponseBodyMethodProcessor(
+				converters, null, Arrays.asList(new JsonViewRequestBodyAdvice()));
+
+		@SuppressWarnings("unchecked")
+		JacksonViewBean result = (JacksonViewBean)processor.resolveArgument(methodParameter,
+				this.mavContainer, this.webRequest, this.binderFactory);
+
+		assertNotNull(result);
+		assertEquals("with", result.getWithView1());
+		assertNull(result.getWithView2());
+		assertNull(result.getWithoutView());
+	}
+
+	@Test  // SPR-12501
+	public void resolveHttpEntityArgumentWithJacksonJsonViewAndXmlMessageConverter() throws Exception {
+		String content = "<root><withView1>with</withView1><withView2>with</withView2><withoutView>without</withoutView></root>";
+		this.servletRequest.setContent(content.getBytes("UTF-8"));
+		this.servletRequest.setContentType(MediaType.APPLICATION_XML_VALUE);
+
+		Method method = JacksonViewController.class.getMethod("handleHttpEntity", HttpEntity.class);
+		HandlerMethod handlerMethod = new HandlerMethod(new JacksonViewController(), method);
+		MethodParameter methodParameter = handlerMethod.getMethodParameters()[0];
+
+		List<HttpMessageConverter<?>> converters = new ArrayList<HttpMessageConverter<?>>();
+		converters.add(new MappingJackson2XmlHttpMessageConverter());
+
+		HttpEntityMethodProcessor processor = new HttpEntityMethodProcessor(
+				converters, null, Arrays.asList(new JsonViewRequestBodyAdvice()));
+
+		@SuppressWarnings("unchecked")
+		HttpEntity<JacksonViewBean> result = (HttpEntity<JacksonViewBean>)processor.resolveArgument(methodParameter,
+				this.mavContainer, this.webRequest, this.binderFactory);
+
+		assertNotNull(result);
+		assertNotNull(result.getBody());
+		assertEquals("with", result.getBody().getWithView1());
+		assertNull(result.getBody().getWithView2());
+		assertNull(result.getBody().getWithoutView());
+	}
+
 
 	@SuppressWarnings("unused")
 	public String handle(
@@ -563,6 +658,18 @@ public class RequestResponseBodyMethodProcessorTests {
 			return new ResponseEntity<JacksonViewBean>(bean, HttpStatus.OK);
 		}
 
+		@RequestMapping
+		@ResponseBody
+		public JacksonViewBean handleRequestBody(@JsonView(MyJacksonView1.class) @RequestBody JacksonViewBean bean) {
+			return bean;
+		}
+
+		@RequestMapping
+		@ResponseBody
+		public JacksonViewBean handleHttpEntity(@JsonView(MyJacksonView1.class) HttpEntity<JacksonViewBean> entity) {
+			return entity.getBody();
+		}
+
 	}
 
 	private static class EmptyRequestBodyAdvice implements RequestBodyAdvice {