org.springframework.web.reactive.result.method

Class InvocableHandlerMethod

java.lang.Object

org.springframework.web.method.HandlerMethod

org.springframework.web.reactive.result.method.InvocableHandlerMethod

public class InvocableHandlerMethod
extends HandlerMethod

Extension of HandlerMethod that invokes the underlying method with argument values resolved from the current HTTP request through a list of HandlerMethodArgumentResolver.

Since:

5.0

Author:

Rossen Stoyanchev, Juergen Hoeller

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.web.method.HandlerMethod

HandlerMethod.HandlerMethodParameter

Field Summary

Fields

Modifier and Type	Field and Description
private static <any>	EMPTY_ARGS
private static java.lang.Object	NO_ARG_VALUE
private ParameterNameDiscoverer	parameterNameDiscoverer
private java.util.List<HandlerMethodArgumentResolver>	resolvers

Fields inherited from class org.springframework.web.method.HandlerMethod

logger

Constructor Summary

Constructors

Constructor and Description
InvocableHandlerMethod(HandlerMethod handlerMethod)
InvocableHandlerMethod(java.lang.Object bean, java.lang.reflect.Method method)

Method Summary

Modifier and Type	Method and Description
private java.lang.Object	doInvoke(java.lang.Object[] args)
private java.util.Optional<java.lang.Object>	findProvidedArgument(MethodParameter parameter, java.lang.Object... providedArgs)
private HandlerMethodArgumentResolver	findResolver(MethodParameter param)
private java.lang.IllegalStateException	getArgumentError(java.lang.String text, MethodParameter parameter, java.lang.Throwable ex)
private java.lang.String	getDetailedErrorMessage(java.lang.String text, MethodParameter param)
private java.lang.String	getInvocationErrorMessage(java.lang.Object[] args)
ParameterNameDiscoverer	getParameterNameDiscoverer() Return the configured parameter name discoverer.
java.util.List<HandlerMethodArgumentResolver>	getResolvers() Return the configured argument resolvers.
<any>	invoke(ServerWebExchange exchange, BindingContext bindingContext, java.lang.Object... providedArgs) Invoke the method for the given exchange.
private <any>	resolveArg(HandlerMethodArgumentResolver resolver, MethodParameter parameter, BindingContext bindingContext, ServerWebExchange exchange)
private <any>	resolveArguments(ServerWebExchange exchange, BindingContext bindingContext, java.lang.Object... providedArgs)
void	setArgumentResolvers(java.util.List<HandlerMethodArgumentResolver> resolvers) Configure the argument resolvers to use to use for resolving method argument values against a ServerWebExchange.
void	setParameterNameDiscoverer(ParameterNameDiscoverer nameDiscoverer) Set the ParameterNameDiscoverer for resolving parameter names when needed (e.g.

Methods inherited from class org.springframework.web.method.HandlerMethod

createWithResolvedBean, equals, getBean, getBeanType, getBridgedMethod, getMethod, getMethodAnnotation, getMethodParameters, getResolvedFromHandlerMethod, getResponseStatus, getResponseStatusReason, getReturnType, getReturnValueType, getShortLogMessage, hashCode, hasMethodAnnotation, isVoid, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY_ARGS

private static final <any> EMPTY_ARGS

NO_ARG_VALUE

private static final java.lang.Object NO_ARG_VALUE

resolvers

private java.util.List<HandlerMethodArgumentResolver> resolvers

parameterNameDiscoverer

private ParameterNameDiscoverer parameterNameDiscoverer

Constructor Detail

InvocableHandlerMethod

public InvocableHandlerMethod(HandlerMethod handlerMethod)

InvocableHandlerMethod

public InvocableHandlerMethod(java.lang.Object bean,
                              java.lang.reflect.Method method)

Method Detail

setArgumentResolvers

public void setArgumentResolvers(java.util.List<HandlerMethodArgumentResolver> resolvers)

Configure the argument resolvers to use to use for resolving method argument values against a ServerWebExchange.

getResolvers

public java.util.List<HandlerMethodArgumentResolver> getResolvers()

Return the configured argument resolvers.

setParameterNameDiscoverer

public void setParameterNameDiscoverer(ParameterNameDiscoverer nameDiscoverer)

Set the ParameterNameDiscoverer for resolving parameter names when needed (e.g. default request attribute name).

Default is a DefaultParameterNameDiscoverer.

getParameterNameDiscoverer

public ParameterNameDiscoverer getParameterNameDiscoverer()

Return the configured parameter name discoverer.

invoke

public <any> invoke(ServerWebExchange exchange,
                    BindingContext bindingContext,
                    java.lang.Object... providedArgs)

Invoke the method for the given exchange.

Parameters:

exchange - the current exchange

bindingContext - the binding context to use

providedArgs - optional list of argument values to match by type

Returns:

Mono with a HandlerResult.

resolveArguments

private <any> resolveArguments(ServerWebExchange exchange,
                               BindingContext bindingContext,
                               java.lang.Object... providedArgs)

findProvidedArgument

private java.util.Optional<java.lang.Object> findProvidedArgument(MethodParameter parameter,
                                                                  java.lang.Object... providedArgs)

findResolver

private HandlerMethodArgumentResolver findResolver(MethodParameter param)

resolveArg

private <any> resolveArg(HandlerMethodArgumentResolver resolver,
                         MethodParameter parameter,
                         BindingContext bindingContext,
                         ServerWebExchange exchange)

getArgumentError

private java.lang.IllegalStateException getArgumentError(java.lang.String text,
                                                         MethodParameter parameter,
                                                         @Nullable
                                                         java.lang.Throwable ex)

getDetailedErrorMessage

private java.lang.String getDetailedErrorMessage(java.lang.String text,
                                                 MethodParameter param)

doInvoke

private java.lang.Object doInvoke(java.lang.Object[] args)
                           throws java.lang.Exception

Throws:

java.lang.Exception

getInvocationErrorMessage

private java.lang.String getInvocationErrorMessage(java.lang.Object[] args)