/*
* Copyright 2002-2017 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
*
* http://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.web.reactive.function;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import org.springframework.core.NestedRuntimeException;
import org.springframework.http.MediaType;
/**
* Exception thrown to indicate that a {@code Content-Type} is not supported.
*
* @author Arjen Poutsma
* @since 5.0
*/
@SuppressWarnings("serial")
public class UnsupportedMediaTypeException extends NestedRuntimeException {
private final MediaType contentType;
private final List<MediaType> supportedMediaTypes;
/**
* Constructor for when the specified Content-Type is invalid.
*/
public UnsupportedMediaTypeException(String reason) {
super(reason);
this.contentType = null;
this.supportedMediaTypes = Collections.emptyList();
}
/**
* Constructor for when the Content-Type can be parsed but is not supported.
*/
public UnsupportedMediaTypeException(MediaType contentType, List<MediaType> supportedMediaTypes) {
super("Content type '" + contentType + "' not supported");
this.contentType = contentType;
this.supportedMediaTypes = Collections.unmodifiableList(supportedMediaTypes);
}
/**
* Return the request Content-Type header if it was parsed successfully.
*/
public Optional<MediaType> getContentType() {
return Optional.ofNullable(this.contentType);
}
/**
* Return the list of supported content types in cases when the Content-Type
* header is parsed but not supported, or an empty list otherwise.
*/
public List<MediaType> getSupportedMediaTypes() {
return this.supportedMediaTypes;
}
}