org.springframework.web.client.CustomRestTemplate Maven / Gradle / Ivy
/*
* Copyright 2017-2018 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.client;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import lombok.NonNull;
/**
* Custom {@link RestTemplate}
*/
public class CustomRestTemplate extends RestTemplate implements CustomRestOperations {
/**
* Get {@link MappingJackson2HttpMessageConverter}
*
* @param restTemplate {@link RestTemplate}
* @return {@link MappingJackson2HttpMessageConverter}
* @throws IllegalStateException if failed to get
*/
public static MappingJackson2HttpMessageConverter getMappingJackson2HttpMessageConverter(
@NonNull RestTemplate restTemplate) throws IllegalStateException {
for (HttpMessageConverter converter : restTemplate.getMessageConverters()) {
if (converter instanceof MappingJackson2HttpMessageConverter) {
return (MappingJackson2HttpMessageConverter) converter;
}
}
throw new IllegalStateException("'MappingJackson2HttpMessageConverter' not found in 'RestTemplate'");
}
}