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groups the minimum required configuration for a taskana REST APP

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package pro.taskana.rest;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import java.util.List;
import javax.annotation.PostConstruct;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/** The Web MVC Configuration. */
@Configuration
@EnableWebMvc
public class WebMvcConfig implements WebMvcConfigurer {

  private static final String[] CLASSPATH_RESOURCE_LOCATIONS = {
    "classpath:/META-INF/resources/", "classpath:/resources/",
    "classpath:/static/", "classpath:/public/"
  };

  @Autowired private ObjectMapper objectMapper;

  @Override
  public void addResourceHandlers(ResourceHandlerRegistry registry) {
    if (!registry.hasMappingForPattern("/webjars/**")) {
      registry
          .addResourceHandler("/webjars/**")
          .addResourceLocations("classpath:/META-INF/resources/webjars/");
    }
    if (!registry.hasMappingForPattern("/**")) {
      registry.addResourceHandler("/**").addResourceLocations(CLASSPATH_RESOURCE_LOCATIONS);
    }
  }

  @Override
  public void extendMessageConverters(List> converters) {
    for (HttpMessageConverter converter : converters) {
      if (converter instanceof MappingJackson2HttpMessageConverter) {
        MappingJackson2HttpMessageConverter jacksonConverter =
            (MappingJackson2HttpMessageConverter) converter;
        jacksonConverter.setPrettyPrint(true);
      }
    }
  }

  @PostConstruct
  public void enableObjectIndent() {
    objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
  }
}