org.springframework.http.codec.KotlinSerializationSupport Maven / Gradle / Ivy
/*
* Copyright 2002-2022 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.http.codec;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import kotlinx.serialization.KSerializer;
import kotlinx.serialization.SerialFormat;
import kotlinx.serialization.SerializersKt;
import kotlinx.serialization.descriptors.PolymorphicKind;
import kotlinx.serialization.descriptors.SerialDescriptor;
import org.springframework.core.ResolvableType;
import org.springframework.lang.Nullable;
import org.springframework.util.ConcurrentReferenceHashMap;
import org.springframework.util.MimeType;
/**
* Base class providing support methods for encoding and decoding with Kotlin
* serialization.
*
* @author Sebastien Deleuze
* @author Iain Henderson
* @author Arjen Poutsma
* @since 6.0
* @param the type of {@link SerialFormat}
*/
public abstract class KotlinSerializationSupport {
private static final Map> serializerCache = new ConcurrentReferenceHashMap<>();
private final T format;
private final List supportedMimeTypes;
/**
* Creates a new instance of this support class with the given format
* and supported mime types.
*/
protected KotlinSerializationSupport(T format, MimeType... supportedMimeTypes) {
this.format = format;
this.supportedMimeTypes = Arrays.asList(supportedMimeTypes);
}
/**
* Returns the format.
*/
protected final T format() {
return this.format;
}
/**
* Returns the supported mime types.
*/
protected final List supportedMimeTypes() {
return this.supportedMimeTypes;
}
/**
* Indicates whether the given type can be serialized using Kotlin
* serialization.
* @param type the type to be serialized
* @param mimeType the mimetype to use (can be {@code null})
* @return {@code true} if {@code type} can be serialized; false otherwise
*/
protected final boolean canSerialize(ResolvableType type, @Nullable MimeType mimeType) {
KSerializer