/*
* Copyright 2012-2017 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.boot.autoconfigure.http;
import com.google.gson.Gson;
import org.springframework.boot.autoconfigure.condition.AnyNestedCondition;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.GsonHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
/**
* Configuration for HTTP Message converters that use Gson.
*
* @author Andy Wilkinson
* @since 1.2.2
*/
@Configuration
@ConditionalOnClass(Gson.class)
class GsonHttpMessageConvertersConfiguration {
@Configuration
@ConditionalOnBean(Gson.class)
@Conditional(PreferGsonOrMissingJacksonCondition.class)
protected static class GsonHttpMessageConverterConfiguration {
@Bean
@ConditionalOnMissingBean
public GsonHttpMessageConverter gsonHttpMessageConverter(Gson gson) {
GsonHttpMessageConverter converter = new GsonHttpMessageConverter();
converter.setGson(gson);
return converter;
}
}
private static class PreferGsonOrMissingJacksonCondition extends AnyNestedCondition {
PreferGsonOrMissingJacksonCondition() {
super(ConfigurationPhase.REGISTER_BEAN);
}
@ConditionalOnProperty(name = HttpMessageConvertersAutoConfiguration.PREFERRED_MAPPER_PROPERTY, havingValue = "gson", matchIfMissing = false)
static class GsonPreferred {
}
@ConditionalOnMissingBean(MappingJackson2HttpMessageConverter.class)
static class JacksonMissing {
}
}
}