org.springframework.messaging.rsocket.MetadataExtractorRegistryExtensions.kt Maven / Gradle / Ivy
/*
* Copyright 2002-2019 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.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.messaging.rsocket
import org.springframework.util.MimeType
/**
* Extension for [MetadataExtractorRegistry.metadataToExtract] providing a `metadataToExtract(...)`
* variant leveraging Kotlin reified type parameters. This extension is not subject to type
* erasure and retains actual generic type arguments.
* @param mimeType the mime type of metadata entries to extract
* @param name assign a name for the decoded value; if not provided, then
* the mime type is used as the key
* @param T the target value type to decode to
* @author Sebastien Deleuze
* @since 5.2
*/
inline fun MetadataExtractorRegistry.metadataToExtract(mimeType: MimeType, name: String? = null) =
metadataToExtract(mimeType, object : org.springframework.core.ParameterizedTypeReference() {}, name)
/**
* Extension for [MetadataExtractorRegistry.metadataToExtract] providing a `metadataToExtract(...)`
* variant leveraging Kotlin reified type parameters. This extension is not subject to type
* erasure and retains actual generic type arguments.
* @param mimeType the mime type of metadata entries to extract
* @param mapper custom logic to add the decoded value to the output map
* @param T the target value type to decode to
* @author Sebastien Deleuze
* @since 5.2
*/
inline fun MetadataExtractorRegistry.metadataToExtract(mimeType: MimeType, noinline mapper: (T, MutableMap) -> Unit) =
metadataToExtract(mimeType, object : org.springframework.core.ParameterizedTypeReference() {}, mapper)