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Revisit PropertyResolver Kotlin extensions

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Issue: SPR-16883
This commit is contained in:
Sebastien Deleuze
2018-05-31 12:17:37 +02:00
parent ab9b575da6
commit a7a29a8226
3 changed files with 51 additions and 10 deletions
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32
spring-core/src/main/kotlin/org/springframework/core/env/PropertyResolverExtensions.kt vendored
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2017 the original author or authors.
* Copyright 2002-2018 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.
@@ -14,16 +14,40 @@
* limitations under the License.
*/
@file:Suppress("EXTENSION_SHADOWED_BY_MEMBER")
package org.springframework.core.env
/**
* Extension for [PropertyResolver.getRequiredProperty] providing Array like getter.
* Extension for [PropertyResolver.getProperty] providing Array like getter returning a
* nullable [String].
*
* ```kotlin
* env["name"] = "Seb"
* val name = env["name"] ?: "Seb"
* ```
*
* @author Sebastien Deleuze
* @since 5.0
*/
operator fun PropertyResolver.get(key: String) : String = getRequiredProperty(key)
operator fun PropertyResolver.get(key: String) : String? = getProperty(key)
/**
* Extension for [PropertyResolver.getProperty] providing a `getProperty<Foo>(...)`
* variant returning a nullable [String].
*
* @author Sebastien Deleuze
* @since 5.1
*/
inline fun <reified T: Any?> PropertyResolver.getProperty(key: String) : T? =
getProperty(key, T::class.java)
/**
* Extension for [PropertyResolver.getRequiredProperty] providing a
* `getRequiredProperty<Foo>(...)` variant.
*
* @author Sebastien Deleuze
* @since 5.1
*/
inline fun <reified T: Any> PropertyResolver.getRequiredProperty(key: String) : T =
getRequiredProperty(key, T::class.java)