de.digitalcollections.iiif.bookshelf.config.SpringConfigWeb Maven / Gradle / Ivy

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The bookshelf is a webapp for collecting IIIF representations of books. It is based on the functionality of the IIIF Presentation API for modelling books. You can add books to your bookshelf loading the manifest.json of the book by its web-address.

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package de.digitalcollections.iiif.bookshelf.config;

import de.digitalcollections.commons.springmvc.interceptors.CurrentUrlAsModelAttributeHandlerInterceptor;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.Locale;
import java.util.Map;
import nz.net.ultraq.thymeleaf.LayoutDialect;
import org.ocpsoft.prettytime.PrettyTime;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.data.web.config.EnableSpringDataWebSupport;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
import org.springframework.web.servlet.i18n.SessionLocaleResolver;
import org.yaml.snakeyaml.Yaml;

@Configuration
@EnableAspectJAutoProxy
@EnableSpringDataWebSupport
public class SpringConfigWeb implements WebMvcConfigurer {

  @Override
  public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/favicon.ico").addResourceLocations("classpath:/static/images/favicon.png");
    registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/").setCachePeriod(Integer.MAX_VALUE);
  }

  @Bean
  public LayoutDialect layoutDialect() {
    return new LayoutDialect();
  }

  @Override
  public void addInterceptors(InterceptorRegistry registry) {
    LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
    localeChangeInterceptor.setParamName("language");
    registry.addInterceptor(localeChangeInterceptor);

    CurrentUrlAsModelAttributeHandlerInterceptor currentUrlAsModelAttributeHandlerInterceptor = new CurrentUrlAsModelAttributeHandlerInterceptor();
    currentUrlAsModelAttributeHandlerInterceptor.deleteParams("language");
    registry.addInterceptor(currentUrlAsModelAttributeHandlerInterceptor);
  }

  @Bean
  public LocaleResolver localeResolver() {
    return new SessionLocaleResolver();
  }

  @Bean
  public PrettyTime prettyTime() {
    return new MyPrettyTime();
  }

  private static class MyPrettyTime extends PrettyTime {

    public String format(Date then, Locale locale) {
      PrettyTime prettyTime = new PrettyTime(locale);
      return prettyTime.format(then);
    }
  }

  @Bean(name = "iiifVersions")
  public Map iiifVersions() {
    Map versions = null;
    Map customVersions;
    Yaml yaml = new Yaml();
    try (InputStream in = this.getClass().getResourceAsStream("/iiif-versions.yml")) {
      versions = (Map) yaml.load(in);
    } catch (IOException exception) {
      throw new IllegalStateException(exception);
    }
    try (InputStream in = this.getClass().getResourceAsStream("/iiif-versions-custom.yml")) {
      customVersions = (Map) yaml.load(in);
      if (customVersions != null) {
        customVersions.forEach(versions::putIfAbsent);
      }
    } catch (IOException exception) {
      throw new IllegalStateException(exception);
    }
    return versions;
  }
}