How to use

SimpleServletResource

in

leap.lang.servlet

/**
 * Gets a resource in the given servlet context.
 */
public static ServletResource getResource(ServletContext sc,String path){
  return new SimpleServletResource(sc,path);
}

/**
 * This implementation delegates to {@code ServletContext.getResourceAsStream},
 * but throws a FileNotFoundException if no resource found.
 * @see javax.servlet.ServletContext#getResourceAsStream(String)
 */
public InputStream getInputStream() throws IOException {
  InputStream is = this.servletContext.getResourceAsStream(this.path);
  if (is == null) {
    throw new FileNotFoundException("Could not open " + getDescription());
  }
  return is;
}

public static ServletResource getResource(ServletContext sc,String path, Locale locale) {
  String[] paths = Locales.getLocaleFilePaths(locale, path);
  
  for (String p : paths) {
    try {
      if (null != sc.getResource(p)) {
        return new SimpleServletResource(sc, p);
      }
    } catch (MalformedURLException ex) {
    }
  }
  
  return null;
}

/**
 * This implementation delegates to {@code ServletContext.getResource},
 * but throws a FileNotFoundException if no resource found.
 * @see javax.servlet.ServletContext#getResource(String)
 */
@Override
public URL getURL() throws IOException {
  URL url = this.servletContext.getResource(this.path);
  if (url == null) {
    throw new FileNotFoundException(
        getDescription() + " cannot be resolved to URL because it does not exist");
  }
  return url;
}

/**
 * This implementation creates a ServletContextResource, applying the given path
 * relative to the path of the underlying file of this resource descriptor.
 * @see org.springframework.util.StringUtils#applyRelativePath(String, String)
 */
@Override
public SimpleServletResource createRelative(String relativePath) {
  String pathToUse = Paths.applyRelative(this.path, relativePath);
  return new SimpleServletResource(this.servletContext, pathToUse);
}

@Override
@SuppressWarnings("unchecked")
public ServletResource[] scan(String subPattern) {
  Args.notEmpty(subPattern,"subPattern");
  
  Set<String> subPaths = this.servletContext.getResourcePaths(this.path);
  
  List<SimpleServletResource> resources = new ArrayList<>();
  
  PathMatcher matcher = Resources.getPathMatcher();
  
  for(String subPath : subPaths){
    if(matcher.match(subPattern, subPath)){
      resources.add(new SimpleServletResource(servletContext, subPath));
    }
  }
  
  return resources.toArray(new SimpleServletResource[resources.size()]);
}

private void loadServletContextResource(ServletContext sc, String path, String pathPrefix) {
  ServletResource resource = new SimpleServletResource(sc, path);
  if(!resource.isDirectory()) {
    add(resource, Strings.removeStart(path, pathPrefix));
  }else{
    loadServletContextResources(sc, path, pathPrefix);
  }
}