org.springframework.boot.autoconfigure.web.reactive.ReactiveMultipartAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2023 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.boot.autoconfigure.web.reactive;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.context.properties.PropertyMapper;
import org.springframework.boot.web.codec.CodecCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.core.annotation.Order;
import org.springframework.http.codec.multipart.DefaultPartHttpMessageReader;
import org.springframework.http.codec.multipart.PartEventHttpMessageReader;
import org.springframework.util.unit.DataSize;
import org.springframework.web.reactive.config.WebFluxConfigurer;
/**
* {@link EnableAutoConfiguration Auto-configuration} for multipart support in Spring
* WebFlux.
*
* @author Chris Bono
* @author Brian Clozel
* @since 2.6.0
*/
@AutoConfiguration
@ConditionalOnClass({ DefaultPartHttpMessageReader.class, WebFluxConfigurer.class })
@ConditionalOnWebApplication(type = Type.REACTIVE)
@EnableConfigurationProperties(ReactiveMultipartProperties.class)
public class ReactiveMultipartAutoConfiguration {
@Bean
@Order(0)
CodecCustomizer defaultPartHttpMessageReaderCustomizer(ReactiveMultipartProperties multipartProperties) {
return (configurer) -> configurer.defaultCodecs().configureDefaultCodec((codec) -> {
if (codec instanceof DefaultPartHttpMessageReader defaultPartHttpMessageReader) {
PropertyMapper map = PropertyMapper.get().alwaysApplyingWhenNonNull();
map.from(multipartProperties::getMaxInMemorySize)
.asInt(DataSize::toBytes)
.to(defaultPartHttpMessageReader::setMaxInMemorySize);
map.from(multipartProperties::getMaxHeadersSize)
.asInt(DataSize::toBytes)
.to(defaultPartHttpMessageReader::setMaxHeadersSize);
map.from(multipartProperties::getMaxDiskUsagePerPart)
.as(DataSize::toBytes)
.to(defaultPartHttpMessageReader::setMaxDiskUsagePerPart);
map.from(multipartProperties::getMaxParts).to(defaultPartHttpMessageReader::setMaxParts);
map.from(multipartProperties::getFileStorageDirectory)
.as(Paths::get)
.to((dir) -> configureFileStorageDirectory(defaultPartHttpMessageReader, dir));
map.from(multipartProperties::getHeadersCharset).to(defaultPartHttpMessageReader::setHeadersCharset);
}
else if (codec instanceof PartEventHttpMessageReader partEventHttpMessageReader) {
PropertyMapper map = PropertyMapper.get().alwaysApplyingWhenNonNull();
map.from(multipartProperties::getMaxInMemorySize)
.asInt(DataSize::toBytes)
.to(partEventHttpMessageReader::setMaxInMemorySize);
map.from(multipartProperties::getMaxHeadersSize)
.asInt(DataSize::toBytes)
.to(partEventHttpMessageReader::setMaxHeadersSize);
map.from(multipartProperties::getMaxDiskUsagePerPart)
.as(DataSize::toBytes)
.to(partEventHttpMessageReader::setMaxPartSize);
map.from(multipartProperties::getMaxParts).to(partEventHttpMessageReader::setMaxParts);
map.from(multipartProperties::getHeadersCharset).to(partEventHttpMessageReader::setHeadersCharset);
}
});
}
private void configureFileStorageDirectory(DefaultPartHttpMessageReader defaultPartHttpMessageReader,
Path fileStorageDirectory) {
try {
defaultPartHttpMessageReader.setFileStorageDirectory(fileStorageDirectory);
}
catch (IOException ex) {
throw new IllegalStateException("Failed to configure multipart file storage directory", ex);
}
}
}