miere/WebJarWithUndertow.md Secret

## WebJarWithUndertow.md

      
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              WebJarWithUndertow.md
            
          
    WebJar

I just created the bellow class.
public interface WebJarHandler {

  static HttpHandler withLocation( webJarInternalLocation ) {
    final ResourceManager resourceManager = loadResourceManagerFor( webJarInternalLocation );
    return new ResourceHandler(resourceManager, new WebJarNotFound( context.fallbackHandler() ) )
  }

  static ResourceManager loadResourceManagerFor(String location) {
    final File locationAsFile = new File(location);
    if ( locationAsFile.exists() ) {
      final boolean isCaseSensitive = !OS_NAME.contains("win");
      return new FileResourceManager(locationAsFile, 100, isCaseSensitive );
    }
    final ClassLoader classLoader = SystemResource.class.getClassLoader();
    return new ClassPathResourceManager( classLoader, location );
  }
}
And used it just like this:
final String DEFAULT_WEBJAR_LOCATION = "META-INF/resources/webjars/";
final Undertow server = Undertow.builder()
  .addHttpListener(8080, "localhost")
  .setHandler( WebJarHandler.withLocation(DEFAULT_WEBJAR_LOCATION) ).build();
server.start();