Package io.toro.martini.util

Class HandlerMethodArgumentResolverUtils

java.lang.Object

io.toro.martini.util.HandlerMethodArgumentResolverUtils

public final class HandlerMethodArgumentResolverUtils
extends Object

Utility class for org.springframework.web.method.support.HandlerMethodArgumentResolver

Method Summary

Modifier and Type	Method	Description
static Optional<String>	getParam(String key, HttpServletRequest request)	Retrieves the parameter's value from the HttpServletRequest.
static List<String>	getParamAsList(String key, HttpServletRequest request)	Retrieves the parameter's values from the HttpServletRequest.
static <T> List<T>	getParamAsList(String key, HttpServletRequest request, Function<String,T> fn)	Retrieves the parameter's values from the HttpServletRequest.
static <T> List<T>	toList(String[] val, Function<String,T> fn)	Converts the string array to HandlerMethodArgumentResolverUtils using the provided Function.

Methods inherited from class java.lang.Object

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

Method Detail

getParam

public static Optional<String> getParam(String key,
                                        HttpServletRequest request)

Retrieves the parameter's value from the HttpServletRequest.

Parameters:

key - the parameter key

request - the request containing the parameter

Returns:

String value of the parameter

getParamAsList

public static List<String> getParamAsList(String key,
                                          HttpServletRequest request)

Retrieves the parameter's values from the HttpServletRequest.

Parameters:

key - the parameter key

request - the request containing the parameter

Returns:

List of string values of the parameter

getParamAsList

public static <T> List<T> getParamAsList(String key,
                                         HttpServletRequest request,
                                         Function<String,T> fn)

Retrieves the parameter's values from the HttpServletRequest.

Type Parameters:

T - the return type

Parameters:

key - the parameter key

request - the request containing the parameter

fn - the function that will convert the string value to HandlerMethodArgumentResolverUtils

Returns:

List of HandlerMethodArgumentResolverUtils values of the parameter

toList

public static <T> List<T> toList(String[] val,
                                 Function<String,T> fn)

Converts the string array to HandlerMethodArgumentResolverUtils using the provided Function.

Type Parameters:

T - the return type

Parameters:

val - the array of string to convert

fn - the function to be used in converting

Returns:

List of HandlerMethodArgumentResolverUtils values of the parameter