org.springframework.shell.command

Class ArgumentHeaderMethodArgumentResolver

java.lang.Object

org.springframework.shell.support.AbstractArgumentMethodArgumentResolver

org.springframework.shell.command.ArgumentHeaderMethodArgumentResolver

All Implemented Interfaces:

org.springframework.messaging.handler.invocation.HandlerMethodArgumentResolver

public class ArgumentHeaderMethodArgumentResolver
extends AbstractArgumentMethodArgumentResolver

Resolver for @Header arguments.

Author:

Janne Valkealahti

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.shell.support.AbstractArgumentMethodArgumentResolver

AbstractArgumentMethodArgumentResolver.NamedValueInfo

Field Summary

Fields inherited from class org.springframework.shell.support.AbstractArgumentMethodArgumentResolver

ARGUMENT_PREFIX

Constructor Summary

Constructors

Constructor and Description
ArgumentHeaderMethodArgumentResolver(org.springframework.core.convert.ConversionService conversionService, org.springframework.beans.factory.config.ConfigurableBeanFactory beanFactory)

Method Summary

Modifier and Type	Method and Description
protected AbstractArgumentMethodArgumentResolver.NamedValueInfo	createNamedValueInfo(org.springframework.core.MethodParameter parameter) Create the AbstractArgumentMethodArgumentResolver.NamedValueInfo object for the given method parameter.
protected void	handleMissingValue(List<String> headerName, org.springframework.core.MethodParameter parameter, org.springframework.messaging.Message<?> message) Invoked when a value is required, but AbstractArgumentMethodArgumentResolver.resolveArgumentInternal(org.springframework.core.MethodParameter, org.springframework.messaging.Message<?>, java.util.List<java.lang.String>) returned null and there is no default value.
protected Object	resolveArgumentInternal(org.springframework.core.MethodParameter parameter, org.springframework.messaging.Message<?> message, List<String> names) Resolves the given parameter type and value name into an argument value.
boolean	supportsParameter(org.springframework.core.MethodParameter parameter)

Methods inherited from class org.springframework.shell.support.AbstractArgumentMethodArgumentResolver

handleResolvedValue, resolveArgument

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ArgumentHeaderMethodArgumentResolver

public ArgumentHeaderMethodArgumentResolver(org.springframework.core.convert.ConversionService conversionService,
                                            @Nullable
                                            org.springframework.beans.factory.config.ConfigurableBeanFactory beanFactory)

Method Detail

supportsParameter

public boolean supportsParameter(org.springframework.core.MethodParameter parameter)

createNamedValueInfo

protected AbstractArgumentMethodArgumentResolver.NamedValueInfo createNamedValueInfo(org.springframework.core.MethodParameter parameter)

Description copied from class: AbstractArgumentMethodArgumentResolver

Create the AbstractArgumentMethodArgumentResolver.NamedValueInfo object for the given method parameter. Implementations typically retrieve the method annotation by means of MethodParameter.getParameterAnnotation(Class).

Specified by:

createNamedValueInfo in class AbstractArgumentMethodArgumentResolver

Parameters:

parameter - the method parameter

Returns:

the named value information

resolveArgumentInternal

@Nullable
protected Object resolveArgumentInternal(org.springframework.core.MethodParameter parameter,
                                                   org.springframework.messaging.Message<?> message,
                                                   List<String> names)
                                            throws Exception

Description copied from class: AbstractArgumentMethodArgumentResolver

Resolves the given parameter type and value name into an argument value.

Specified by:

resolveArgumentInternal in class AbstractArgumentMethodArgumentResolver

Parameters:

parameter - the method parameter to resolve to an argument value

message - the current request

Returns:

the resolved argument. May be null

Throws:

Exception - in case of errors

handleMissingValue

protected void handleMissingValue(List<String> headerName,
                                  org.springframework.core.MethodParameter parameter,
                                  org.springframework.messaging.Message<?> message)

Description copied from class: AbstractArgumentMethodArgumentResolver

Invoked when a value is required, but AbstractArgumentMethodArgumentResolver.resolveArgumentInternal(org.springframework.core.MethodParameter, org.springframework.messaging.Message<?>, java.util.List<java.lang.String>) returned null and there is no default value. Sub-classes can throw an appropriate exception for this case.

Specified by:

handleMissingValue in class AbstractArgumentMethodArgumentResolver

Parameters:

headerName - the name for the value

parameter - the target method parameter

message - the message being processed