How to use

ResourceService

in

org.nuxeo.runtime.services.resource

@Override
public URL getResourceURL(String key) {
  URL url = null;
  
  ResourceService rs = getService();
  if (null != rs) {
    url = rs.getResource(key);
  }
  
  return url;
}

@Override
public URL getResourceURL(String key) {
  try {
    if (key.startsWith(Renderer.TEMPLATE_PREFIX)) {
      return Framework.getService(ResourceService.class).getResource(
          key.substring(Renderer.TEMPLATE_PREFIX.length()));
    } else {
      return new URL(key);
    }
  } catch (MalformedURLException e) {
    return null;
  }
}

@Override
public URL getResourceURL(String key) {
  URL url = null;
  
  ResourceService rs = getService();
  if (null != rs) {
    url = rs.getResource(key);
  }
  
  return url;
}

@Override
public String render(String uriOrContent, Map<String, Object> root) throws OperationException, IOException {
  CompiledTemplate compiled;
  String content;
  if (uriOrContent.startsWith(Renderer.TEMPLATE_PREFIX)) {
    String name = uriOrContent.substring(Renderer.TEMPLATE_PREFIX.length());
    compiled = cache.get(name);
    if (compiled == null) {
      URL url = Framework.getService(ResourceService.class).getResource(name);
      if (url == null) {
        throw new OperationException("Rendering resource not found: " + name);
      }
      try (InputStream in = url.openStream()) {
        content = IOUtils.toString(in, UTF_8);
      }
      compiled = TemplateCompiler.compileTemplate(content);
      cache.put(name, compiled);
    }
  } else {
    content = uriOrContent;
    compiled = TemplateCompiler.compileTemplate(content);
  }
  Object obj = TemplateRuntime.execute(compiled, root);
  return obj == null ? "" : obj.toString();
}