|
|
|
|
@ -0,0 +1,898 @@
@@ -0,0 +1,898 @@
|
|
|
|
|
/* |
|
|
|
|
* Copyright 2002-2010 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.datastore.document.web.bind.annotation.support; |
|
|
|
|
|
|
|
|
|
import java.lang.annotation.Annotation; |
|
|
|
|
import java.lang.reflect.Array; |
|
|
|
|
import java.lang.reflect.GenericArrayType; |
|
|
|
|
import java.lang.reflect.InvocationTargetException; |
|
|
|
|
import java.lang.reflect.Method; |
|
|
|
|
import java.lang.reflect.ParameterizedType; |
|
|
|
|
import java.lang.reflect.Type; |
|
|
|
|
import java.util.ArrayList; |
|
|
|
|
import java.util.Arrays; |
|
|
|
|
import java.util.Collection; |
|
|
|
|
import java.util.Iterator; |
|
|
|
|
import java.util.LinkedHashMap; |
|
|
|
|
import java.util.List; |
|
|
|
|
import java.util.Map; |
|
|
|
|
import java.util.Set; |
|
|
|
|
|
|
|
|
|
import org.apache.commons.logging.Log; |
|
|
|
|
import org.apache.commons.logging.LogFactory; |
|
|
|
|
|
|
|
|
|
import org.springframework.beans.BeanUtils; |
|
|
|
|
import org.springframework.beans.factory.annotation.Value; |
|
|
|
|
import org.springframework.core.BridgeMethodResolver; |
|
|
|
|
import org.springframework.core.Conventions; |
|
|
|
|
import org.springframework.core.GenericTypeResolver; |
|
|
|
|
import org.springframework.core.MethodParameter; |
|
|
|
|
import org.springframework.core.ParameterNameDiscoverer; |
|
|
|
|
import org.springframework.core.annotation.AnnotationUtils; |
|
|
|
|
import org.springframework.http.HttpEntity; |
|
|
|
|
import org.springframework.http.HttpHeaders; |
|
|
|
|
import org.springframework.http.HttpInputMessage; |
|
|
|
|
import org.springframework.http.HttpOutputMessage; |
|
|
|
|
import org.springframework.http.MediaType; |
|
|
|
|
import org.springframework.http.converter.HttpMessageConverter; |
|
|
|
|
import org.springframework.ui.ExtendedModelMap; |
|
|
|
|
import org.springframework.ui.Model; |
|
|
|
|
import org.springframework.util.Assert; |
|
|
|
|
import org.springframework.util.ClassUtils; |
|
|
|
|
import org.springframework.util.LinkedMultiValueMap; |
|
|
|
|
import org.springframework.util.MultiValueMap; |
|
|
|
|
import org.springframework.util.ReflectionUtils; |
|
|
|
|
import org.springframework.validation.BindException; |
|
|
|
|
import org.springframework.validation.BindingResult; |
|
|
|
|
import org.springframework.validation.Errors; |
|
|
|
|
import org.springframework.web.HttpMediaTypeNotSupportedException; |
|
|
|
|
import org.springframework.web.bind.WebDataBinder; |
|
|
|
|
import org.springframework.web.bind.annotation.CookieValue; |
|
|
|
|
import org.springframework.web.bind.annotation.InitBinder; |
|
|
|
|
import org.springframework.web.bind.annotation.ModelAttribute; |
|
|
|
|
import org.springframework.web.bind.annotation.PathVariable; |
|
|
|
|
import org.springframework.web.bind.annotation.RequestBody; |
|
|
|
|
import org.springframework.web.bind.annotation.RequestHeader; |
|
|
|
|
import org.springframework.web.bind.annotation.RequestParam; |
|
|
|
|
import org.springframework.web.bind.annotation.ValueConstants; |
|
|
|
|
import org.springframework.web.bind.annotation.support.HandlerMethodInvocationException; |
|
|
|
|
import org.springframework.web.bind.annotation.support.HandlerMethodResolver; |
|
|
|
|
import org.springframework.web.bind.support.DefaultSessionAttributeStore; |
|
|
|
|
import org.springframework.web.bind.support.SessionAttributeStore; |
|
|
|
|
import org.springframework.web.bind.support.SessionStatus; |
|
|
|
|
import org.springframework.web.bind.support.SimpleSessionStatus; |
|
|
|
|
import org.springframework.web.bind.support.WebArgumentResolver; |
|
|
|
|
import org.springframework.web.bind.support.WebBindingInitializer; |
|
|
|
|
import org.springframework.web.bind.support.WebRequestDataBinder; |
|
|
|
|
import org.springframework.web.context.request.NativeWebRequest; |
|
|
|
|
import org.springframework.web.context.request.WebRequest; |
|
|
|
|
import org.springframework.web.multipart.MultipartFile; |
|
|
|
|
import org.springframework.web.multipart.MultipartRequest; |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Support class for invoking an annotated handler method. Operates on the introspection results of a {@link |
|
|
|
|
* HandlerMethodResolver} for a specific handler type. |
|
|
|
|
* |
|
|
|
|
* <p>Used by {@link org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter} and {@link |
|
|
|
|
* org.springframework.web.portlet.mvc.annotation.AnnotationMethodHandlerAdapter}. |
|
|
|
|
* |
|
|
|
|
* @author Juergen Hoeller |
|
|
|
|
* @author Arjen Poutsma |
|
|
|
|
* @since 2.5.2 |
|
|
|
|
* @see #invokeHandlerMethod |
|
|
|
|
*/ |
|
|
|
|
public class HandlerMethodInvoker { |
|
|
|
|
|
|
|
|
|
private static final String MODEL_KEY_PREFIX_STALE = SessionAttributeStore.class.getName() + ".STALE."; |
|
|
|
|
|
|
|
|
|
/** We'll create a lot of these objects, so we don't want a new logger every time. */ |
|
|
|
|
private static final Log logger = LogFactory.getLog(HandlerMethodInvoker.class); |
|
|
|
|
|
|
|
|
|
private final HandlerMethodResolver methodResolver; |
|
|
|
|
|
|
|
|
|
private final WebBindingInitializer bindingInitializer; |
|
|
|
|
|
|
|
|
|
private final SessionAttributeStore sessionAttributeStore; |
|
|
|
|
|
|
|
|
|
private final ParameterNameDiscoverer parameterNameDiscoverer; |
|
|
|
|
|
|
|
|
|
private final WebArgumentResolver[] customArgumentResolvers; |
|
|
|
|
|
|
|
|
|
private final HttpMessageConverter[] messageConverters; |
|
|
|
|
|
|
|
|
|
private final SimpleSessionStatus sessionStatus = new SimpleSessionStatus(); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
public HandlerMethodInvoker(HandlerMethodResolver methodResolver) { |
|
|
|
|
this(methodResolver, null); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public HandlerMethodInvoker(HandlerMethodResolver methodResolver, WebBindingInitializer bindingInitializer) { |
|
|
|
|
this(methodResolver, bindingInitializer, new DefaultSessionAttributeStore(), null, null, null); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public HandlerMethodInvoker(HandlerMethodResolver methodResolver, WebBindingInitializer bindingInitializer, |
|
|
|
|
SessionAttributeStore sessionAttributeStore, ParameterNameDiscoverer parameterNameDiscoverer, |
|
|
|
|
WebArgumentResolver[] customArgumentResolvers, HttpMessageConverter[] messageConverters) { |
|
|
|
|
|
|
|
|
|
this.methodResolver = methodResolver; |
|
|
|
|
this.bindingInitializer = bindingInitializer; |
|
|
|
|
this.sessionAttributeStore = sessionAttributeStore; |
|
|
|
|
this.parameterNameDiscoverer = parameterNameDiscoverer; |
|
|
|
|
this.customArgumentResolvers = customArgumentResolvers; |
|
|
|
|
this.messageConverters = messageConverters; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
public final Object invokeHandlerMethod(Method handlerMethod, Object handler, |
|
|
|
|
NativeWebRequest webRequest, ExtendedModelMap implicitModel) throws Exception { |
|
|
|
|
|
|
|
|
|
Method handlerMethodToInvoke = BridgeMethodResolver.findBridgedMethod(handlerMethod); |
|
|
|
|
try { |
|
|
|
|
boolean debug = logger.isDebugEnabled(); |
|
|
|
|
for (String attrName : this.methodResolver.getActualSessionAttributeNames()) { |
|
|
|
|
Object attrValue = this.sessionAttributeStore.retrieveAttribute(webRequest, attrName); |
|
|
|
|
if (attrValue != null) { |
|
|
|
|
implicitModel.addAttribute(attrName, attrValue); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
for (Method attributeMethod : this.methodResolver.getModelAttributeMethods()) { |
|
|
|
|
Method attributeMethodToInvoke = BridgeMethodResolver.findBridgedMethod(attributeMethod); |
|
|
|
|
Object[] args = resolveHandlerArguments(attributeMethodToInvoke, handler, webRequest, implicitModel); |
|
|
|
|
if (debug) { |
|
|
|
|
logger.debug("Invoking model attribute method: " + attributeMethodToInvoke); |
|
|
|
|
} |
|
|
|
|
String attrName = AnnotationUtils.findAnnotation(attributeMethod, ModelAttribute.class).value(); |
|
|
|
|
if (!"".equals(attrName) && implicitModel.containsAttribute(attrName)) { |
|
|
|
|
continue; |
|
|
|
|
} |
|
|
|
|
ReflectionUtils.makeAccessible(attributeMethodToInvoke); |
|
|
|
|
Object attrValue = attributeMethodToInvoke.invoke(handler, args); |
|
|
|
|
if ("".equals(attrName)) { |
|
|
|
|
Class resolvedType = GenericTypeResolver.resolveReturnType(attributeMethodToInvoke, handler.getClass()); |
|
|
|
|
attrName = Conventions.getVariableNameForReturnType(attributeMethodToInvoke, resolvedType, attrValue); |
|
|
|
|
} |
|
|
|
|
if (!implicitModel.containsAttribute(attrName)) { |
|
|
|
|
implicitModel.addAttribute(attrName, attrValue); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
Object[] args = resolveHandlerArguments(handlerMethodToInvoke, handler, webRequest, implicitModel); |
|
|
|
|
if (debug) { |
|
|
|
|
logger.debug("Invoking request handler method: " + handlerMethodToInvoke); |
|
|
|
|
} |
|
|
|
|
ReflectionUtils.makeAccessible(handlerMethodToInvoke); |
|
|
|
|
return handlerMethodToInvoke.invoke(handler, args); |
|
|
|
|
} |
|
|
|
|
catch (IllegalStateException ex) { |
|
|
|
|
// Internal assertion failed (e.g. invalid signature):
|
|
|
|
|
// throw exception with full handler method context...
|
|
|
|
|
throw new HandlerMethodInvocationException(handlerMethodToInvoke, ex); |
|
|
|
|
} |
|
|
|
|
catch (InvocationTargetException ex) { |
|
|
|
|
// User-defined @ModelAttribute/@InitBinder/@RequestMapping method threw an exception...
|
|
|
|
|
ReflectionUtils.rethrowException(ex.getTargetException()); |
|
|
|
|
return null; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
public final void updateModelAttributes(Object handler, Map<String, Object> mavModel, |
|
|
|
|
ExtendedModelMap implicitModel, NativeWebRequest webRequest) throws Exception { |
|
|
|
|
|
|
|
|
|
if (this.methodResolver.hasSessionAttributes() && this.sessionStatus.isComplete()) { |
|
|
|
|
for (String attrName : this.methodResolver.getActualSessionAttributeNames()) { |
|
|
|
|
this.sessionAttributeStore.cleanupAttribute(webRequest, attrName); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// Expose model attributes as session attributes, if required.
|
|
|
|
|
// Expose BindingResults for all attributes, making custom editors available.
|
|
|
|
|
Map<String, Object> model = (mavModel != null ? mavModel : implicitModel); |
|
|
|
|
if (model != null) { |
|
|
|
|
try { |
|
|
|
|
String[] originalAttrNames = model.keySet().toArray(new String[model.size()]); |
|
|
|
|
for (String attrName : originalAttrNames) { |
|
|
|
|
Object attrValue = model.get(attrName); |
|
|
|
|
boolean isSessionAttr = this.methodResolver.isSessionAttribute( |
|
|
|
|
attrName, (attrValue != null ? attrValue.getClass() : null)); |
|
|
|
|
if (isSessionAttr) { |
|
|
|
|
if (this.sessionStatus.isComplete()) { |
|
|
|
|
implicitModel.put(MODEL_KEY_PREFIX_STALE + attrName, Boolean.TRUE); |
|
|
|
|
} |
|
|
|
|
else if (!implicitModel.containsKey(MODEL_KEY_PREFIX_STALE + attrName)) { |
|
|
|
|
this.sessionAttributeStore.storeAttribute(webRequest, attrName, attrValue); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
if (!attrName.startsWith(BindingResult.MODEL_KEY_PREFIX) && |
|
|
|
|
(isSessionAttr || isBindingCandidate(attrValue))) { |
|
|
|
|
String bindingResultKey = BindingResult.MODEL_KEY_PREFIX + attrName; |
|
|
|
|
if (mavModel != null && !model.containsKey(bindingResultKey)) { |
|
|
|
|
WebDataBinder binder = createBinder(webRequest, attrValue, attrName); |
|
|
|
|
initBinder(handler, attrName, binder, webRequest); |
|
|
|
|
mavModel.put(bindingResultKey, binder.getBindingResult()); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
catch (InvocationTargetException ex) { |
|
|
|
|
// User-defined @InitBinder method threw an exception...
|
|
|
|
|
ReflectionUtils.rethrowException(ex.getTargetException()); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
private Object[] resolveHandlerArguments(Method handlerMethod, Object handler, |
|
|
|
|
NativeWebRequest webRequest, ExtendedModelMap implicitModel) throws Exception { |
|
|
|
|
|
|
|
|
|
Class[] paramTypes = handlerMethod.getParameterTypes(); |
|
|
|
|
Object[] args = new Object[paramTypes.length]; |
|
|
|
|
|
|
|
|
|
for (int i = 0; i < args.length; i++) { |
|
|
|
|
MethodParameter methodParam = new MethodParameter(handlerMethod, i); |
|
|
|
|
methodParam.initParameterNameDiscovery(this.parameterNameDiscoverer); |
|
|
|
|
GenericTypeResolver.resolveParameterType(methodParam, handler.getClass()); |
|
|
|
|
String paramName = null; |
|
|
|
|
String headerName = null; |
|
|
|
|
boolean requestBodyFound = false; |
|
|
|
|
String cookieName = null; |
|
|
|
|
String pathVarName = null; |
|
|
|
|
String attrName = null; |
|
|
|
|
boolean required = false; |
|
|
|
|
String defaultValue = null; |
|
|
|
|
boolean validate = false; |
|
|
|
|
int annotationsFound = 0; |
|
|
|
|
Annotation[] paramAnns = methodParam.getParameterAnnotations(); |
|
|
|
|
|
|
|
|
|
for (Annotation paramAnn : paramAnns) { |
|
|
|
|
if (RequestParam.class.isInstance(paramAnn)) { |
|
|
|
|
RequestParam requestParam = (RequestParam) paramAnn; |
|
|
|
|
paramName = requestParam.value(); |
|
|
|
|
required = requestParam.required(); |
|
|
|
|
defaultValue = parseDefaultValueAttribute(requestParam.defaultValue()); |
|
|
|
|
annotationsFound++; |
|
|
|
|
} |
|
|
|
|
else if (RequestHeader.class.isInstance(paramAnn)) { |
|
|
|
|
RequestHeader requestHeader = (RequestHeader) paramAnn; |
|
|
|
|
headerName = requestHeader.value(); |
|
|
|
|
required = requestHeader.required(); |
|
|
|
|
defaultValue = parseDefaultValueAttribute(requestHeader.defaultValue()); |
|
|
|
|
annotationsFound++; |
|
|
|
|
} |
|
|
|
|
else if (RequestBody.class.isInstance(paramAnn)) { |
|
|
|
|
requestBodyFound = true; |
|
|
|
|
annotationsFound++; |
|
|
|
|
} |
|
|
|
|
else if (CookieValue.class.isInstance(paramAnn)) { |
|
|
|
|
CookieValue cookieValue = (CookieValue) paramAnn; |
|
|
|
|
cookieName = cookieValue.value(); |
|
|
|
|
required = cookieValue.required(); |
|
|
|
|
defaultValue = parseDefaultValueAttribute(cookieValue.defaultValue()); |
|
|
|
|
annotationsFound++; |
|
|
|
|
} |
|
|
|
|
else if (PathVariable.class.isInstance(paramAnn)) { |
|
|
|
|
PathVariable pathVar = (PathVariable) paramAnn; |
|
|
|
|
pathVarName = pathVar.value(); |
|
|
|
|
annotationsFound++; |
|
|
|
|
} |
|
|
|
|
else if (ModelAttribute.class.isInstance(paramAnn)) { |
|
|
|
|
ModelAttribute attr = (ModelAttribute) paramAnn; |
|
|
|
|
attrName = attr.value(); |
|
|
|
|
annotationsFound++; |
|
|
|
|
} |
|
|
|
|
else if (Value.class.isInstance(paramAnn)) { |
|
|
|
|
defaultValue = ((Value) paramAnn).value(); |
|
|
|
|
} |
|
|
|
|
else if ("Valid".equals(paramAnn.annotationType().getSimpleName())) { |
|
|
|
|
validate = true; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (annotationsFound > 1) { |
|
|
|
|
throw new IllegalStateException("Handler parameter annotations are exclusive choices - " + |
|
|
|
|
"do not specify more than one such annotation on the same parameter: " + handlerMethod); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (annotationsFound == 0) { |
|
|
|
|
Object argValue = resolveCommonArgument(methodParam, webRequest); |
|
|
|
|
if (argValue != WebArgumentResolver.UNRESOLVED) { |
|
|
|
|
args[i] = argValue; |
|
|
|
|
} |
|
|
|
|
else if (defaultValue != null) { |
|
|
|
|
args[i] = resolveDefaultValue(defaultValue); |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
Class paramType = methodParam.getParameterType(); |
|
|
|
|
if (Model.class.isAssignableFrom(paramType) || Map.class.isAssignableFrom(paramType)) { |
|
|
|
|
args[i] = implicitModel; |
|
|
|
|
} |
|
|
|
|
else if (SessionStatus.class.isAssignableFrom(paramType)) { |
|
|
|
|
args[i] = this.sessionStatus; |
|
|
|
|
} |
|
|
|
|
else if (HttpEntity.class.isAssignableFrom(paramType)) { |
|
|
|
|
args[i] = resolveHttpEntityRequest(methodParam, webRequest); |
|
|
|
|
} |
|
|
|
|
else if (Errors.class.isAssignableFrom(paramType)) { |
|
|
|
|
throw new IllegalStateException("Errors/BindingResult argument declared " + |
|
|
|
|
"without preceding model attribute. Check your handler method signature!"); |
|
|
|
|
} |
|
|
|
|
else if (BeanUtils.isSimpleProperty(paramType)) { |
|
|
|
|
paramName = ""; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
attrName = ""; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (paramName != null) { |
|
|
|
|
args[i] = resolveRequestParam(paramName, required, defaultValue, methodParam, webRequest, handler); |
|
|
|
|
} |
|
|
|
|
else if (headerName != null) { |
|
|
|
|
args[i] = resolveRequestHeader(headerName, required, defaultValue, methodParam, webRequest, handler); |
|
|
|
|
} |
|
|
|
|
else if (requestBodyFound) { |
|
|
|
|
args[i] = resolveRequestBody(methodParam, webRequest, handler); |
|
|
|
|
} |
|
|
|
|
else if (cookieName != null) { |
|
|
|
|
args[i] = resolveCookieValue(cookieName, required, defaultValue, methodParam, webRequest, handler); |
|
|
|
|
} |
|
|
|
|
else if (pathVarName != null) { |
|
|
|
|
args[i] = resolvePathVariable(pathVarName, methodParam, webRequest, handler); |
|
|
|
|
} |
|
|
|
|
else if (attrName != null) { |
|
|
|
|
WebDataBinder binder = |
|
|
|
|
resolveModelAttribute(attrName, methodParam, implicitModel, webRequest, handler); |
|
|
|
|
boolean assignBindingResult = (args.length > i + 1 && Errors.class.isAssignableFrom(paramTypes[i + 1])); |
|
|
|
|
if (binder.getTarget() != null) { |
|
|
|
|
doBind(binder, webRequest, validate, !assignBindingResult); |
|
|
|
|
} |
|
|
|
|
args[i] = binder.getTarget(); |
|
|
|
|
if (assignBindingResult) { |
|
|
|
|
args[i + 1] = binder.getBindingResult(); |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
implicitModel.putAll(binder.getBindingResult().getModel()); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return args; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected void initBinder(Object handler, String attrName, WebDataBinder binder, NativeWebRequest webRequest) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
if (this.bindingInitializer != null) { |
|
|
|
|
this.bindingInitializer.initBinder(binder, webRequest); |
|
|
|
|
} |
|
|
|
|
if (handler != null) { |
|
|
|
|
Set<Method> initBinderMethods = this.methodResolver.getInitBinderMethods(); |
|
|
|
|
if (!initBinderMethods.isEmpty()) { |
|
|
|
|
boolean debug = logger.isDebugEnabled(); |
|
|
|
|
for (Method initBinderMethod : initBinderMethods) { |
|
|
|
|
Method methodToInvoke = BridgeMethodResolver.findBridgedMethod(initBinderMethod); |
|
|
|
|
String[] targetNames = AnnotationUtils.findAnnotation(initBinderMethod, InitBinder.class).value(); |
|
|
|
|
if (targetNames.length == 0 || Arrays.asList(targetNames).contains(attrName)) { |
|
|
|
|
Object[] initBinderArgs = |
|
|
|
|
resolveInitBinderArguments(handler, methodToInvoke, binder, webRequest); |
|
|
|
|
if (debug) { |
|
|
|
|
logger.debug("Invoking init-binder method: " + methodToInvoke); |
|
|
|
|
} |
|
|
|
|
ReflectionUtils.makeAccessible(methodToInvoke); |
|
|
|
|
Object returnValue = methodToInvoke.invoke(handler, initBinderArgs); |
|
|
|
|
if (returnValue != null) { |
|
|
|
|
throw new IllegalStateException( |
|
|
|
|
"InitBinder methods must not have a return value: " + methodToInvoke); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Object[] resolveInitBinderArguments(Object handler, Method initBinderMethod, |
|
|
|
|
WebDataBinder binder, NativeWebRequest webRequest) throws Exception { |
|
|
|
|
|
|
|
|
|
Class[] initBinderParams = initBinderMethod.getParameterTypes(); |
|
|
|
|
Object[] initBinderArgs = new Object[initBinderParams.length]; |
|
|
|
|
|
|
|
|
|
for (int i = 0; i < initBinderArgs.length; i++) { |
|
|
|
|
MethodParameter methodParam = new MethodParameter(initBinderMethod, i); |
|
|
|
|
methodParam.initParameterNameDiscovery(this.parameterNameDiscoverer); |
|
|
|
|
GenericTypeResolver.resolveParameterType(methodParam, handler.getClass()); |
|
|
|
|
String paramName = null; |
|
|
|
|
boolean paramRequired = false; |
|
|
|
|
String paramDefaultValue = null; |
|
|
|
|
String pathVarName = null; |
|
|
|
|
Annotation[] paramAnns = methodParam.getParameterAnnotations(); |
|
|
|
|
|
|
|
|
|
for (Annotation paramAnn : paramAnns) { |
|
|
|
|
if (RequestParam.class.isInstance(paramAnn)) { |
|
|
|
|
RequestParam requestParam = (RequestParam) paramAnn; |
|
|
|
|
paramName = requestParam.value(); |
|
|
|
|
paramRequired = requestParam.required(); |
|
|
|
|
paramDefaultValue = parseDefaultValueAttribute(requestParam.defaultValue()); |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
|
else if (ModelAttribute.class.isInstance(paramAnn)) { |
|
|
|
|
throw new IllegalStateException( |
|
|
|
|
"@ModelAttribute is not supported on @InitBinder methods: " + initBinderMethod); |
|
|
|
|
} |
|
|
|
|
else if (PathVariable.class.isInstance(paramAnn)) { |
|
|
|
|
PathVariable pathVar = (PathVariable) paramAnn; |
|
|
|
|
pathVarName = pathVar.value(); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (paramName == null && pathVarName == null) { |
|
|
|
|
Object argValue = resolveCommonArgument(methodParam, webRequest); |
|
|
|
|
if (argValue != WebArgumentResolver.UNRESOLVED) { |
|
|
|
|
initBinderArgs[i] = argValue; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
Class paramType = initBinderParams[i]; |
|
|
|
|
if (paramType.isInstance(binder)) { |
|
|
|
|
initBinderArgs[i] = binder; |
|
|
|
|
} |
|
|
|
|
else if (BeanUtils.isSimpleProperty(paramType)) { |
|
|
|
|
paramName = ""; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
throw new IllegalStateException("Unsupported argument [" + paramType.getName() + |
|
|
|
|
"] for @InitBinder method: " + initBinderMethod); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (paramName != null) { |
|
|
|
|
initBinderArgs[i] = |
|
|
|
|
resolveRequestParam(paramName, paramRequired, paramDefaultValue, methodParam, webRequest, null); |
|
|
|
|
} |
|
|
|
|
else if (pathVarName != null) { |
|
|
|
|
initBinderArgs[i] = resolvePathVariable(pathVarName, methodParam, webRequest, null); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return initBinderArgs; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("unchecked") |
|
|
|
|
private Object resolveRequestParam(String paramName, boolean required, String defaultValue, |
|
|
|
|
MethodParameter methodParam, NativeWebRequest webRequest, Object handlerForInitBinderCall) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
Class<?> paramType = methodParam.getParameterType(); |
|
|
|
|
if (Map.class.isAssignableFrom(paramType) && paramName.length() == 0) { |
|
|
|
|
return resolveRequestParamMap((Class<? extends Map>) paramType, webRequest); |
|
|
|
|
} |
|
|
|
|
if (paramName.length() == 0) { |
|
|
|
|
paramName = getRequiredParameterName(methodParam); |
|
|
|
|
} |
|
|
|
|
Object paramValue = null; |
|
|
|
|
MultipartRequest multipartRequest = webRequest.getNativeRequest(MultipartRequest.class); |
|
|
|
|
if (multipartRequest != null) { |
|
|
|
|
List<MultipartFile> files = multipartRequest.getFiles(paramName); |
|
|
|
|
if (!files.isEmpty()) { |
|
|
|
|
if (files.size() == 1 && !paramType.isArray() && !Collection.class.isAssignableFrom(paramType)) { |
|
|
|
|
paramValue = files.get(0); |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
paramValue = files; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
if (paramValue == null) { |
|
|
|
|
String[] paramValues = webRequest.getParameterValues(paramName); |
|
|
|
|
if (paramValues != null) { |
|
|
|
|
if (paramValues.length == 1 && !paramType.isArray() && !Collection.class.isAssignableFrom(paramType)) { |
|
|
|
|
paramValue = paramValues[0]; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
paramValue = paramValues; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
if (paramValue == null) { |
|
|
|
|
if (defaultValue != null) { |
|
|
|
|
paramValue = resolveDefaultValue(defaultValue); |
|
|
|
|
} |
|
|
|
|
else if (required) { |
|
|
|
|
raiseMissingParameterException(paramName, paramType); |
|
|
|
|
} |
|
|
|
|
paramValue = checkValue(paramName, paramValue, paramType); |
|
|
|
|
} |
|
|
|
|
WebDataBinder binder = createBinder(webRequest, null, paramName); |
|
|
|
|
initBinder(handlerForInitBinderCall, paramName, binder, webRequest); |
|
|
|
|
return binder.convertIfNecessary(paramValue, paramType, methodParam); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Map resolveRequestParamMap(Class<? extends Map> mapType, NativeWebRequest webRequest) { |
|
|
|
|
Map<String, String[]> parameterMap = webRequest.getParameterMap(); |
|
|
|
|
if (MultiValueMap.class.isAssignableFrom(mapType)) { |
|
|
|
|
MultiValueMap<String, String> result = new LinkedMultiValueMap<String, String>(parameterMap.size()); |
|
|
|
|
for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) { |
|
|
|
|
for (String value : entry.getValue()) { |
|
|
|
|
result.add(entry.getKey(), value); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
Map<String, String> result = new LinkedHashMap<String, String>(parameterMap.size()); |
|
|
|
|
for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) { |
|
|
|
|
if (entry.getValue().length > 0) { |
|
|
|
|
result.put(entry.getKey(), entry.getValue()[0]); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@SuppressWarnings("unchecked") |
|
|
|
|
private Object resolveRequestHeader(String headerName, boolean required, String defaultValue, |
|
|
|
|
MethodParameter methodParam, NativeWebRequest webRequest, Object handlerForInitBinderCall) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
Class<?> paramType = methodParam.getParameterType(); |
|
|
|
|
if (Map.class.isAssignableFrom(paramType)) { |
|
|
|
|
return resolveRequestHeaderMap((Class<? extends Map>) paramType, webRequest); |
|
|
|
|
} |
|
|
|
|
if (headerName.length() == 0) { |
|
|
|
|
headerName = getRequiredParameterName(methodParam); |
|
|
|
|
} |
|
|
|
|
Object headerValue = null; |
|
|
|
|
String[] headerValues = webRequest.getHeaderValues(headerName); |
|
|
|
|
if (headerValues != null) { |
|
|
|
|
headerValue = (headerValues.length == 1 ? headerValues[0] : headerValues); |
|
|
|
|
} |
|
|
|
|
if (headerValue == null) { |
|
|
|
|
if (defaultValue != null) { |
|
|
|
|
headerValue = resolveDefaultValue(defaultValue); |
|
|
|
|
} |
|
|
|
|
else if (required) { |
|
|
|
|
raiseMissingHeaderException(headerName, paramType); |
|
|
|
|
} |
|
|
|
|
headerValue = checkValue(headerName, headerValue, paramType); |
|
|
|
|
} |
|
|
|
|
WebDataBinder binder = createBinder(webRequest, null, headerName); |
|
|
|
|
initBinder(handlerForInitBinderCall, headerName, binder, webRequest); |
|
|
|
|
return binder.convertIfNecessary(headerValue, paramType, methodParam); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Map resolveRequestHeaderMap(Class<? extends Map> mapType, NativeWebRequest webRequest) { |
|
|
|
|
if (MultiValueMap.class.isAssignableFrom(mapType)) { |
|
|
|
|
MultiValueMap<String, String> result; |
|
|
|
|
if (HttpHeaders.class.isAssignableFrom(mapType)) { |
|
|
|
|
result = new HttpHeaders(); |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
result = new LinkedMultiValueMap<String, String>(); |
|
|
|
|
} |
|
|
|
|
for (Iterator<String> iterator = webRequest.getHeaderNames(); iterator.hasNext();) { |
|
|
|
|
String headerName = iterator.next(); |
|
|
|
|
for (String headerValue : webRequest.getHeaderValues(headerName)) { |
|
|
|
|
result.add(headerName, headerValue); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
Map<String, String> result = new LinkedHashMap<String, String>(); |
|
|
|
|
for (Iterator<String> iterator = webRequest.getHeaderNames(); iterator.hasNext();) { |
|
|
|
|
String headerName = iterator.next(); |
|
|
|
|
String headerValue = webRequest.getHeader(headerName); |
|
|
|
|
result.put(headerName, headerValue); |
|
|
|
|
} |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Resolves the given {@link RequestBody @RequestBody} annotation. |
|
|
|
|
*/ |
|
|
|
|
protected Object resolveRequestBody(MethodParameter methodParam, NativeWebRequest webRequest, Object handler) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
return readWithMessageConverters(methodParam, createHttpInputMessage(webRequest), methodParam.getParameterType()); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private HttpEntity resolveHttpEntityRequest(MethodParameter methodParam, NativeWebRequest webRequest) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
HttpInputMessage inputMessage = createHttpInputMessage(webRequest); |
|
|
|
|
Class<?> paramType = getHttpEntityType(methodParam); |
|
|
|
|
Object body = readWithMessageConverters(methodParam, inputMessage, paramType); |
|
|
|
|
return new HttpEntity<Object>(body, inputMessage.getHeaders()); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Object readWithMessageConverters(MethodParameter methodParam, HttpInputMessage inputMessage, Class paramType) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
MediaType contentType = inputMessage.getHeaders().getContentType(); |
|
|
|
|
if (contentType == null) { |
|
|
|
|
StringBuilder builder = new StringBuilder(ClassUtils.getShortName(methodParam.getParameterType())); |
|
|
|
|
String paramName = methodParam.getParameterName(); |
|
|
|
|
if (paramName != null) { |
|
|
|
|
builder.append(' '); |
|
|
|
|
builder.append(paramName); |
|
|
|
|
} |
|
|
|
|
throw new HttpMediaTypeNotSupportedException( |
|
|
|
|
"Cannot extract parameter (" + builder.toString() + "): no Content-Type found"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
List<MediaType> allSupportedMediaTypes = new ArrayList<MediaType>(); |
|
|
|
|
if (this.messageConverters != null) { |
|
|
|
|
for (HttpMessageConverter<?> messageConverter : this.messageConverters) { |
|
|
|
|
allSupportedMediaTypes.addAll(messageConverter.getSupportedMediaTypes()); |
|
|
|
|
if (messageConverter.canRead(paramType, contentType)) { |
|
|
|
|
if (logger.isDebugEnabled()) { |
|
|
|
|
logger.debug("Reading [" + paramType.getName() + "] as \"" + contentType |
|
|
|
|
+"\" using [" + messageConverter + "]"); |
|
|
|
|
} |
|
|
|
|
return messageConverter.read(paramType, inputMessage); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
throw new HttpMediaTypeNotSupportedException(contentType, allSupportedMediaTypes); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Class<?> getHttpEntityType(MethodParameter methodParam) { |
|
|
|
|
Assert.isAssignable(HttpEntity.class, methodParam.getParameterType()); |
|
|
|
|
ParameterizedType type = (ParameterizedType) methodParam.getGenericParameterType(); |
|
|
|
|
if (type.getActualTypeArguments().length == 1) { |
|
|
|
|
Type typeArgument = type.getActualTypeArguments()[0]; |
|
|
|
|
if (typeArgument instanceof Class) { |
|
|
|
|
return (Class<?>) typeArgument; |
|
|
|
|
} |
|
|
|
|
else if (typeArgument instanceof GenericArrayType) { |
|
|
|
|
Type componentType = ((GenericArrayType) typeArgument).getGenericComponentType(); |
|
|
|
|
if (componentType instanceof Class) { |
|
|
|
|
// Surely, there should be a nicer way to do this
|
|
|
|
|
Object array = Array.newInstance((Class<?>) componentType, 0); |
|
|
|
|
return array.getClass(); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
throw new IllegalArgumentException( |
|
|
|
|
"HttpEntity parameter (" + methodParam.getParameterName() + ") is not parameterized"); |
|
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Object resolveCookieValue(String cookieName, boolean required, String defaultValue, |
|
|
|
|
MethodParameter methodParam, NativeWebRequest webRequest, Object handlerForInitBinderCall) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
Class<?> paramType = methodParam.getParameterType(); |
|
|
|
|
if (cookieName.length() == 0) { |
|
|
|
|
cookieName = getRequiredParameterName(methodParam); |
|
|
|
|
} |
|
|
|
|
Object cookieValue = resolveCookieValue(cookieName, paramType, webRequest); |
|
|
|
|
if (cookieValue == null) { |
|
|
|
|
if (defaultValue != null) { |
|
|
|
|
cookieValue = resolveDefaultValue(defaultValue); |
|
|
|
|
} |
|
|
|
|
else if (required) { |
|
|
|
|
raiseMissingCookieException(cookieName, paramType); |
|
|
|
|
} |
|
|
|
|
cookieValue = checkValue(cookieName, cookieValue, paramType); |
|
|
|
|
} |
|
|
|
|
WebDataBinder binder = createBinder(webRequest, null, cookieName); |
|
|
|
|
initBinder(handlerForInitBinderCall, cookieName, binder, webRequest); |
|
|
|
|
return binder.convertIfNecessary(cookieValue, paramType, methodParam); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Resolves the given {@link CookieValue @CookieValue} annotation. |
|
|
|
|
* <p>Throws an UnsupportedOperationException by default. |
|
|
|
|
*/ |
|
|
|
|
protected Object resolveCookieValue(String cookieName, Class paramType, NativeWebRequest webRequest) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
throw new UnsupportedOperationException("@CookieValue not supported"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Object resolvePathVariable(String pathVarName, MethodParameter methodParam, |
|
|
|
|
NativeWebRequest webRequest, Object handlerForInitBinderCall) throws Exception { |
|
|
|
|
|
|
|
|
|
Class<?> paramType = methodParam.getParameterType(); |
|
|
|
|
if (pathVarName.length() == 0) { |
|
|
|
|
pathVarName = getRequiredParameterName(methodParam); |
|
|
|
|
} |
|
|
|
|
String pathVarValue = resolvePathVariable(pathVarName, paramType, webRequest); |
|
|
|
|
WebDataBinder binder = createBinder(webRequest, null, pathVarName); |
|
|
|
|
initBinder(handlerForInitBinderCall, pathVarName, binder, webRequest); |
|
|
|
|
return binder.convertIfNecessary(pathVarValue, paramType, methodParam); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Resolves the given {@link PathVariable @PathVariable} annotation. |
|
|
|
|
* <p>Throws an UnsupportedOperationException by default. |
|
|
|
|
*/ |
|
|
|
|
protected String resolvePathVariable(String pathVarName, Class paramType, NativeWebRequest webRequest) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
throw new UnsupportedOperationException("@PathVariable not supported"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private String getRequiredParameterName(MethodParameter methodParam) { |
|
|
|
|
String name = methodParam.getParameterName(); |
|
|
|
|
if (name == null) { |
|
|
|
|
throw new IllegalStateException( |
|
|
|
|
"No parameter name specified for argument of type [" + methodParam.getParameterType().getName() + |
|
|
|
|
"], and no parameter name information found in class file either."); |
|
|
|
|
} |
|
|
|
|
return name; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private Object checkValue(String name, Object value, Class paramType) { |
|
|
|
|
if (value == null) { |
|
|
|
|
if (boolean.class.equals(paramType)) { |
|
|
|
|
return Boolean.FALSE; |
|
|
|
|
} |
|
|
|
|
else if (paramType.isPrimitive()) { |
|
|
|
|
throw new IllegalStateException("Optional " + paramType + " parameter '" + name + |
|
|
|
|
"' is not present but cannot be translated into a null value due to being declared as a " + |
|
|
|
|
"primitive type. Consider declaring it as object wrapper for the corresponding primitive type."); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return value; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private WebDataBinder resolveModelAttribute(String attrName, MethodParameter methodParam, |
|
|
|
|
ExtendedModelMap implicitModel, NativeWebRequest webRequest, Object handler) throws Exception { |
|
|
|
|
|
|
|
|
|
// Bind request parameter onto object...
|
|
|
|
|
String name = attrName; |
|
|
|
|
if ("".equals(name)) { |
|
|
|
|
name = Conventions.getVariableNameForParameter(methodParam); |
|
|
|
|
} |
|
|
|
|
Class<?> paramType = methodParam.getParameterType(); |
|
|
|
|
Object bindObject; |
|
|
|
|
if (implicitModel.containsKey(name)) { |
|
|
|
|
bindObject = implicitModel.get(name); |
|
|
|
|
} |
|
|
|
|
else if (this.methodResolver.isSessionAttribute(name, paramType)) { |
|
|
|
|
bindObject = this.sessionAttributeStore.retrieveAttribute(webRequest, name); |
|
|
|
|
if (bindObject == null) { |
|
|
|
|
raiseSessionRequiredException("Session attribute '" + name + "' required - not found in session"); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
bindObject = BeanUtils.instantiateClass(paramType); |
|
|
|
|
} |
|
|
|
|
WebDataBinder binder = createBinder(webRequest, bindObject, name); |
|
|
|
|
initBinder(handler, name, binder, webRequest); |
|
|
|
|
return binder; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Determine whether the given value qualifies as a "binding candidate", i.e. might potentially be subject to |
|
|
|
|
* bean-style data binding later on. |
|
|
|
|
*/ |
|
|
|
|
protected boolean isBindingCandidate(Object value) { |
|
|
|
|
return (value != null && !value.getClass().isArray() && !(value instanceof Collection) && |
|
|
|
|
!(value instanceof Map) && !BeanUtils.isSimpleValueType(value.getClass())); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected void raiseMissingParameterException(String paramName, Class paramType) throws Exception { |
|
|
|
|
throw new IllegalStateException("Missing parameter '" + paramName + "' of type [" + paramType.getName() + "]"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected void raiseMissingHeaderException(String headerName, Class paramType) throws Exception { |
|
|
|
|
throw new IllegalStateException("Missing header '" + headerName + "' of type [" + paramType.getName() + "]"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected void raiseMissingCookieException(String cookieName, Class paramType) throws Exception { |
|
|
|
|
throw new IllegalStateException( |
|
|
|
|
"Missing cookie value '" + cookieName + "' of type [" + paramType.getName() + "]"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected void raiseSessionRequiredException(String message) throws Exception { |
|
|
|
|
throw new IllegalStateException(message); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected WebDataBinder createBinder(NativeWebRequest webRequest, Object target, String objectName) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
return new WebRequestDataBinder(target, objectName); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
private void doBind(WebDataBinder binder, NativeWebRequest webRequest, boolean validate, boolean failOnErrors) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
doBind(binder, webRequest); |
|
|
|
|
if (validate) { |
|
|
|
|
binder.validate(); |
|
|
|
|
} |
|
|
|
|
if (failOnErrors && binder.getBindingResult().hasErrors()) { |
|
|
|
|
throw new BindException(binder.getBindingResult()); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected void doBind(WebDataBinder binder, NativeWebRequest webRequest) throws Exception { |
|
|
|
|
((WebRequestDataBinder) binder).bind(webRequest); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Return a {@link HttpInputMessage} for the given {@link NativeWebRequest}. |
|
|
|
|
* <p>Throws an UnsupportedOperation1Exception by default. |
|
|
|
|
*/ |
|
|
|
|
protected HttpInputMessage createHttpInputMessage(NativeWebRequest webRequest) throws Exception { |
|
|
|
|
throw new UnsupportedOperationException("@RequestBody not supported"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Return a {@link HttpOutputMessage} for the given {@link NativeWebRequest}. |
|
|
|
|
* <p>Throws an UnsupportedOperationException by default. |
|
|
|
|
*/ |
|
|
|
|
protected HttpOutputMessage createHttpOutputMessage(NativeWebRequest webRequest) throws Exception { |
|
|
|
|
throw new UnsupportedOperationException("@ResponseBody not supported"); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected String parseDefaultValueAttribute(String value) { |
|
|
|
|
return (ValueConstants.DEFAULT_NONE.equals(value) ? null : value); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected Object resolveDefaultValue(String value) { |
|
|
|
|
return value; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected Object resolveCommonArgument(MethodParameter methodParameter, NativeWebRequest webRequest) |
|
|
|
|
throws Exception { |
|
|
|
|
|
|
|
|
|
// Invoke custom argument resolvers if present...
|
|
|
|
|
if (this.customArgumentResolvers != null) { |
|
|
|
|
for (WebArgumentResolver argumentResolver : this.customArgumentResolvers) { |
|
|
|
|
Object value = argumentResolver.resolveArgument(methodParameter, webRequest); |
|
|
|
|
if (value != WebArgumentResolver.UNRESOLVED) { |
|
|
|
|
return value; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// Resolution of standard parameter types...
|
|
|
|
|
Class paramType = methodParameter.getParameterType(); |
|
|
|
|
Object value = resolveStandardArgument(paramType, webRequest); |
|
|
|
|
if (value != WebArgumentResolver.UNRESOLVED && !ClassUtils.isAssignableValue(paramType, value)) { |
|
|
|
|
throw new IllegalStateException("Standard argument type [" + paramType.getName() + |
|
|
|
|
"] resolved to incompatible value of type [" + (value != null ? value.getClass() : null) + |
|
|
|
|
"]. Consider declaring the argument type in a less specific fashion."); |
|
|
|
|
} |
|
|
|
|
return value; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected Object resolveStandardArgument(Class<?> parameterType, NativeWebRequest webRequest) throws Exception { |
|
|
|
|
if (WebRequest.class.isAssignableFrom(parameterType)) { |
|
|
|
|
return webRequest; |
|
|
|
|
} |
|
|
|
|
return WebArgumentResolver.UNRESOLVED; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected final void addReturnValueAsModelAttribute(Method handlerMethod, Class handlerType, |
|
|
|
|
Object returnValue, ExtendedModelMap implicitModel) { |
|
|
|
|
|
|
|
|
|
ModelAttribute attr = AnnotationUtils.findAnnotation(handlerMethod, ModelAttribute.class); |
|
|
|
|
String attrName = (attr != null ? attr.value() : ""); |
|
|
|
|
if ("".equals(attrName)) { |
|
|
|
|
Class resolvedType = GenericTypeResolver.resolveReturnType(handlerMethod, handlerType); |
|
|
|
|
attrName = Conventions.getVariableNameForReturnType(handlerMethod, resolvedType, returnValue); |
|
|
|
|
} |
|
|
|
|
implicitModel.addAttribute(attrName, returnValue); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
} |
Mark Pollack
15 years ago