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 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(attributeMethodToInvoke, ModelAttribute.class).value();
if (!"".equals(attrName) && implicitModel.containsAttribute(attrName)) {
continue;
}
Object attrValue = doInvokeMethod(attributeMethodToInvoke, 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);
}
return doInvokeMethod(handlerMethodToInvoke, handler, args);
} catch (IllegalStateException ex) {
// Throw exception with full handler method context...
throw new HandlerMethodInvocationException(handlerMethodToInvoke, ex);
}
}
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);
}