org.moserp.common.rest.TestRestConfiguration.java Source code

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Here is the source code for org.moserp.common.rest.TestRestConfiguration.java

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/*******************************************************************************
 * Copyright 2013 Thomas Letsch (contact@thomas-letsch.de)
 *
 * 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.moserp.common.rest;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.boot.test.TestRestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.hateoas.mvc.TypeConstrainedMappingJackson2HttpMessageConverter;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter;
import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.util.List;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;

@Configuration
@ComponentScan(basePackageClasses = { ObjectMapperCustomizer.class })
public class TestRestConfiguration {

    private String userName = "user";
    private String password = "password";

    @Bean
    public RestTemplate restTemplate(ObjectMapper objectMapper,
            TypeConstrainedMappingJackson2HttpMessageConverter halJacksonHttpMessageConverter) {
        RestTemplate restTemplate = new TestRestTemplate(userName, password);
        filterXmlConverters(restTemplate);
        correctJacksonConverter(objectMapper, halJacksonHttpMessageConverter, restTemplate);
        return restTemplate;
    }

    private void filterXmlConverters(RestTemplate restTemplate) {
        Stream<HttpMessageConverter<?>> messageConverterStream = restTemplate.getMessageConverters().stream();
        Predicate<HttpMessageConverter<?>> noXmlConverters = httpMessageConverter -> !(httpMessageConverter instanceof Jaxb2RootElementHttpMessageConverter)
                && !(httpMessageConverter instanceof MappingJackson2XmlHttpMessageConverter);
        List<HttpMessageConverter<?>> filtered = messageConverterStream.filter(noXmlConverters)
                .collect(Collectors.toList());
        restTemplate.setMessageConverters(filtered);
    }

    private void correctJacksonConverter(ObjectMapper objectMapper,
            TypeConstrainedMappingJackson2HttpMessageConverter halJacksonHttpMessageConverter,
            RestTemplate restTemplate) {
        Stream<HttpMessageConverter<?>> jacksonConverters = restTemplate.getMessageConverters().stream()
                .filter(httpMessageConverter -> {
                    return MappingJackson2HttpMessageConverter.class
                            .isAssignableFrom(httpMessageConverter.getClass());
                });
        jacksonConverters
                .forEach(httpMessageConverter -> ((MappingJackson2HttpMessageConverter) httpMessageConverter)
                        .setObjectMapper(objectMapper));
        restTemplate.getMessageConverters().add(halJacksonHttpMessageConverter);
    }

}