Spring @configuration for registering an instance of UrlRewriteFilter (see http://tuckey.org/urlrewrite/)

UrlRewriteFilterConfiguration.java

@Configuration
public class UrlRewriteFilterConfiguration {
  /**
   * Registers a {@link UrlRewriteFilter}.
   * Set the init-param on the filter to use slf4j for logging.
   *
   * Configuration goes in src/main/resources/urlrewrite.xml (root of the classpath).
   *
   * @return a {@link FilterRegistrationBean} wrapping a {@link UrlRewriteFilter}
   */
  @Bean
  public FilterRegistrationBean filter() {
    FilterRegistrationBean filter = new FilterRegistrationBean();
    filter.setFilter(new UrlRewriteFilter());
    filter.setInitParameters(ImmutableMap.<String,String>builder()
            .put("logLevel", "slf4j")
            .put("confPath", "urlrewrite.xml")
            .build());
    return filter;
  }
}