SPR-8770 Ensure RequestDataValueProcessor is invoked from RedirectView.

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/view/RedirectView.java

@@ -38,6 +38,8 @@ import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
+import org.springframework.web.context.ContextLoader;
+import org.springframework.web.context.WebApplicationContext;
 import org.springframework.web.servlet.FlashMap;
 import org.springframework.web.servlet.HandlerMapping;
 import org.springframework.web.servlet.SmartView;
@@ -250,13 +252,7 @@ public class RedirectView extends AbstractUrlBasedView implements SmartView {
 
 		String targetUrl = createTargetUrl(model, request);
 
-		if (getWebApplicationContext() != null) {
-			RequestContext requestContext = createRequestContext(request, response, model);
-			RequestDataValueProcessor processor = requestContext.getRequestDataValueProcessor();
-			if (processor != null) {
-				targetUrl = processor.processUrl(request, targetUrl);
-			}
-		}
+		targetUrl = updateTargetUrl(targetUrl, model, request, response);
 		
 		FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request);
 		if (!CollectionUtils.isEmpty(flashMap)) {
@@ -489,6 +485,35 @@ public class RedirectView extends AbstractUrlBasedView implements SmartView {
 		return (input != null ? URLEncoder.encode(input, encodingScheme) : null);
 	}
 
+	/**
+	 * Find the registered {@link RequestDataValueProcessor}, if any, and allow
+	 * it to update the redirect target URL.
+	 * @return the updated URL or the same as URL as the one passed in
+	 */
+	protected String updateTargetUrl(String targetUrl, Map<String, Object> model, 
+								  HttpServletRequest request, HttpServletResponse response) {
+		
+		RequestContext requestContext = null;
+		if (getWebApplicationContext() != null) {
+			requestContext = createRequestContext(request, response, model);
+		}
+		else {
+			WebApplicationContext wac = ContextLoader.getCurrentWebApplicationContext();
+			if (wac != null && wac.getServletContext() != null) {
+				requestContext = new RequestContext(request, response, wac.getServletContext(), model);
+			}
+		}
+
+		if (requestContext != null) {
+			RequestDataValueProcessor processor = requestContext.getRequestDataValueProcessor();
+			if (processor != null) {
+				targetUrl = processor.processUrl(request, targetUrl);
+			}
+		}
+		
+		return targetUrl;
+	}
+	
 	/**
 	 * Send a redirect back to the HTTP client
 	 * @param request current HTTP request (allows for reacting to request method)

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/view/UrlBasedViewResolver.java

@@ -389,7 +389,8 @@ public class UrlBasedViewResolver extends AbstractCachingViewResolver implements
 		// Check for special "redirect:" prefix.
 		if (viewName.startsWith(REDIRECT_URL_PREFIX)) {
 			String redirectUrl = viewName.substring(REDIRECT_URL_PREFIX.length());
-			return new RedirectView(redirectUrl, isRedirectContextRelative(), isRedirectHttp10Compatible());
+			RedirectView view = new RedirectView(redirectUrl, isRedirectContextRelative(), isRedirectHttp10Compatible());
+			return applyLifecycleMethods(viewName, view);
 		}
 		// Check for special "forward:" prefix.
 		if (viewName.startsWith(FORWARD_URL_PREFIX)) {
@@ -433,10 +434,14 @@ public class UrlBasedViewResolver extends AbstractCachingViewResolver implements
 	@Override
 	protected View loadView(String viewName, Locale locale) throws Exception {
 		AbstractUrlBasedView view = buildView(viewName);
-		View result = (View) getApplicationContext().getAutowireCapableBeanFactory().initializeBean(view, viewName);
+		View result = applyLifecycleMethods(viewName, view);
 		return (view.checkResource(locale) ? result : null);
 	}
 
+	private View applyLifecycleMethods(String viewName, AbstractView view) {
+		return (View) getApplicationContext().getAutowireCapableBeanFactory().initializeBean(view, viewName);
+	}
+
 	/**
 	 * Creates a new View instance of the specified view class and configures it.
 	 * Does <i>not</i> perform any lookup for pre-defined View instances.

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/support/RequestDataValueProcessorWrapper.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.web.servlet.tags.form;
+package org.springframework.web.servlet.support;
 
 import java.util.Map;
 
@@ -22,7 +22,7 @@ import javax.servlet.http.HttpServletRequest;
 
 import org.springframework.web.servlet.support.RequestDataValueProcessor;
 
-class DelegatingRequestDataValueProcessor implements RequestDataValueProcessor {
+public class RequestDataValueProcessorWrapper implements RequestDataValueProcessor {
 
 	private RequestDataValueProcessor processor;
 	

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/tags/form/AbstractHtmlElementTagTests.java

@@ -32,6 +32,7 @@ import org.springframework.mock.web.MockPageContext;
 import org.springframework.validation.BindingResult;
 import org.springframework.validation.Errors;
 import org.springframework.web.context.support.StaticWebApplicationContext;
+import org.springframework.web.servlet.support.RequestDataValueProcessorWrapper;
 import org.springframework.web.servlet.support.JspAwareRequestContext;
 import org.springframework.web.servlet.support.RequestContext;
 import org.springframework.web.servlet.support.RequestContextUtils;
@@ -66,7 +67,7 @@ public abstract class AbstractHtmlElementTagTests extends AbstractTagTests {
 		MockPageContext pageContext = createPageContext();
 		MockHttpServletRequest request = (MockHttpServletRequest) pageContext.getRequest();
 		StaticWebApplicationContext wac = (StaticWebApplicationContext) RequestContextUtils.getWebApplicationContext(request);
-		wac.registerSingleton("requestDataValueProcessor", DelegatingRequestDataValueProcessor.class);
+		wac.registerSingleton("requestDataValueProcessor", RequestDataValueProcessorWrapper.class);
 		extendRequest(request);
 		extendPageContext(pageContext);
 		RequestContext requestContext = new JspAwareRequestContext(pageContext);
@@ -103,7 +104,7 @@ public abstract class AbstractHtmlElementTagTests extends AbstractTagTests {
 		RequestDataValueProcessor mockProcessor = createMock(RequestDataValueProcessor.class);
 		ServletRequest request = getPageContext().getRequest();
 		StaticWebApplicationContext wac = (StaticWebApplicationContext) RequestContextUtils.getWebApplicationContext(request);
-		wac.getBean(DelegatingRequestDataValueProcessor.class).setRequestDataValueProcessor(mockProcessor);		
+		wac.getBean(RequestDataValueProcessorWrapper.class).setRequestDataValueProcessor(mockProcessor);		
 		return mockProcessor;
 	}
 

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/view/ContentNegotiatingViewResolverTests.java

@@ -16,6 +16,16 @@
 
 package org.springframework.web.servlet.view;
 
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.easymock.EasyMock.verify;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -28,7 +38,6 @@ import java.util.Set;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
-
 import org.springframework.http.MediaType;
 import org.springframework.mock.web.MockHttpServletRequest;
 import org.springframework.mock.web.MockHttpServletResponse;
@@ -40,9 +49,6 @@ import org.springframework.web.servlet.HandlerMapping;
 import org.springframework.web.servlet.View;
 import org.springframework.web.servlet.ViewResolver;
 
-import static org.easymock.EasyMock.*;
-import static org.junit.Assert.*;
-
 /**
  * @author Arjen Poutsma
  */
@@ -418,8 +424,14 @@ public class ContentNegotiatingViewResolverTests {
 		request.addHeader("Accept", "application/json");
 		request.setRequestURI("/test");
 
+		StaticWebApplicationContext webAppContext = new StaticWebApplicationContext();
+		webAppContext.setServletContext(new MockServletContext());
+		webAppContext.refresh();
+		
+		UrlBasedViewResolver urlViewResolver = new InternalResourceViewResolver();
+		urlViewResolver.setApplicationContext(webAppContext);
 		ViewResolver xmlViewResolver = createMock(ViewResolver.class);
-		viewResolver.setViewResolvers(Arrays.<ViewResolver>asList(xmlViewResolver, new UrlBasedViewResolver()));
+		viewResolver.setViewResolvers(Arrays.<ViewResolver>asList(xmlViewResolver, urlViewResolver));
 
 		View xmlView = createMock("application_xml", View.class);
 		View jsonView = createMock("application_json", View.class);
@@ -491,15 +503,14 @@ public class ContentNegotiatingViewResolverTests {
 
 	@Test
 	public void nestedViewResolverIsNotSpringBean() throws Exception {
+		StaticWebApplicationContext webAppContext = new StaticWebApplicationContext();
+		webAppContext.setServletContext(new MockServletContext());
+		webAppContext.refresh();
+		
 		InternalResourceViewResolver nestedResolver = new InternalResourceViewResolver();
+		nestedResolver.setApplicationContext(webAppContext);
 		nestedResolver.setViewClass(InternalResourceView.class);
 		viewResolver.setViewResolvers(new ArrayList<ViewResolver>(Arrays.asList(nestedResolver)));
-		
-		StaticWebApplicationContext appContext = new StaticWebApplicationContext();
-		appContext.setServletContext(new MockServletContext());
-		appContext.refresh();
-		viewResolver.setApplicationContext(appContext);
-
 		viewResolver.setDefaultContentType(MediaType.TEXT_HTML);
 
 		String viewName = "view";

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/view/RedirectViewTests.java

@@ -34,15 +34,22 @@ import javax.servlet.http.HttpServletResponse;
 
 import junit.framework.AssertionFailedError;
 
+import org.easymock.EasyMock;
 import org.junit.Test;
 import org.springframework.beans.TestBean;
 import org.springframework.http.HttpStatus;
 import org.springframework.mock.web.MockHttpServletRequest;
 import org.springframework.mock.web.MockHttpServletResponse;
+import org.springframework.mock.web.MockServletContext;
 import org.springframework.ui.ModelMap;
+import org.springframework.web.context.ContextLoader;
+import org.springframework.web.context.support.StaticWebApplicationContext;
+import org.springframework.web.servlet.DispatcherServlet;
 import org.springframework.web.servlet.FlashMap;
 import org.springframework.web.servlet.FlashMapManager;
 import org.springframework.web.servlet.View;
+import org.springframework.web.servlet.support.RequestDataValueProcessorWrapper;
+import org.springframework.web.servlet.support.RequestDataValueProcessor;
 import org.springframework.web.util.WebUtils;
 
 /**
@@ -118,8 +125,8 @@ public class RedirectViewTests {
 		RedirectView rv = new RedirectView();
 		rv.setUrl("http://url.somewhere.com/path");
 		rv.setHttp10Compatible(false);
-		MockHttpServletRequest request = new MockHttpServletRequest();
-		MockHttpServletResponse response = new MockHttpServletResponse();
+		HttpServletRequest request = new MockHttpServletRequest();
+		HttpServletResponse response = new MockHttpServletResponse();
 		FlashMap flashMap = new FlashMap();
 		flashMap.put("successMessage", "yay!");
 		request.setAttribute(FlashMapManager.OUTPUT_FLASH_MAP_ATTRIBUTE, flashMap);
@@ -131,6 +138,64 @@ public class RedirectViewTests {
 		assertEquals("/path", flashMap.getTargetRequestPath());
 		assertEquals(model, flashMap.getTargetRequestParams().toSingleValueMap());
 	}
+	
+	@Test
+	public void updateTargetUrl() throws Exception {
+		StaticWebApplicationContext wac = new StaticWebApplicationContext();
+		wac.registerSingleton("requestDataValueProcessor", RequestDataValueProcessorWrapper.class);
+		wac.setServletContext(new MockServletContext());
+		wac.refresh();
+		
+		RequestDataValueProcessor mockProcessor = createMock(RequestDataValueProcessor.class);
+		wac.getBean(RequestDataValueProcessorWrapper.class).setRequestDataValueProcessor(mockProcessor);
+		
+		RedirectView rv = new RedirectView();
+		rv.setApplicationContext(wac);	// Init RedirectView with WebAppCxt
+		rv.setUrl("/path");
+
+		HttpServletRequest request = new MockHttpServletRequest();
+		request.setAttribute(DispatcherServlet.WEB_APPLICATION_CONTEXT_ATTRIBUTE, wac);
+		HttpServletResponse response = new MockHttpServletResponse();
+
+		EasyMock.expect(mockProcessor.processUrl(request, "/path")).andReturn("/path?key=123");
+		EasyMock.replay(mockProcessor);
+
+		rv.render(new ModelMap(), request, response);
+
+		EasyMock.verify(mockProcessor);
+	}
+
+	
+	@Test
+	public void updateTargetUrlWithContextLoader() throws Exception {
+		StaticWebApplicationContext wac = new StaticWebApplicationContext();
+		wac.registerSingleton("requestDataValueProcessor", RequestDataValueProcessorWrapper.class);
+
+		MockServletContext servletContext = new MockServletContext();
+		ContextLoader contextLoader = new ContextLoader(wac);
+		contextLoader.initWebApplicationContext(servletContext); 
+
+		try {
+			RequestDataValueProcessor mockProcessor = createMock(RequestDataValueProcessor.class);
+			wac.getBean(RequestDataValueProcessorWrapper.class).setRequestDataValueProcessor(mockProcessor);
+
+			RedirectView rv = new RedirectView();
+			rv.setUrl("/path");
+
+			HttpServletRequest request = new MockHttpServletRequest();
+			HttpServletResponse response = new MockHttpServletResponse();
+
+			EasyMock.expect(mockProcessor.processUrl(request, "/path")).andReturn("/path?key=123");
+			EasyMock.replay(mockProcessor);
+
+			rv.render(new ModelMap(), request, response);
+
+			EasyMock.verify(mockProcessor);
+		}
+		finally {
+			contextLoader.closeWebApplicationContext(servletContext);
+		}
+	}
 
 	@Test
 	public void emptyMap() throws Exception {
@@ -296,7 +361,7 @@ public class RedirectViewTests {
 			expectedUrlForEncoding = "/context" + expectedUrlForEncoding;
 			expect(request.getContextPath()).andReturn("/context");
 		}
-
+		
 		HttpServletResponse response = createMock("response", HttpServletResponse.class);
 		expect(response.encodeRedirectURL(expectedUrlForEncoding)).andReturn(expectedUrlForEncoding);
 		response.sendRedirect(expectedUrlForEncoding);

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/view/ViewResolverTests.java

@@ -158,6 +158,7 @@ public class ViewResolverTests {
 		view = vr.resolveViewName("redirect:myUrl", Locale.getDefault());
 		assertEquals("Correct view class", RedirectView.class, view.getClass());
 		assertEquals("Correct URL", "myUrl", ((RedirectView) view).getUrl());
+		assertSame("View not initialized as bean", wac, ((RedirectView) view).getApplicationContext());
 
 		view = vr.resolveViewName("forward:myUrl", Locale.getDefault());
 		assertEquals("Correct view class", InternalResourceView.class, view.getClass());