oparl-service/oparl-server/src/main/java/de/twomartens/oparlservice/configs/WebConfig.java

package de.twomartens.oparlservice.configs;

import de.twomartens.oparlservice.interceptors.RequestTypeInterceptor;
import de.twomartens.oparlservice.interceptors.TraceIdInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.util.CollectionUtils;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

import java.util.ArrayList;
import java.util.List;

@EnableWebMvc
@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new TraceIdInterceptor());
        registry.addInterceptor(new RequestTypeInterceptor());
    }

    @Bean
    public InternalResourceViewResolver defaultViewResolver() {
        return new InternalResourceViewResolver();
    }

    @Bean
    public RestTemplate restTemplate() {
        RestTemplate restTemplate = new RestTemplate();

        List<ClientHttpRequestInterceptor> interceptors
                = restTemplate.getInterceptors();
        if (CollectionUtils.isEmpty(interceptors)) {
            interceptors = new ArrayList<>();
        }
        interceptors.add(new TraceIdInterceptor());
        interceptors.add(new RequestTypeInterceptor());
        restTemplate.setInterceptors(interceptors);
        return restTemplate;
    }
}