/**
  * Method invoked to serialize the result of the invoked method and write this value to the
  * response.
  *
  * @param response The current response object.
  * @param result The object to write to response.
  * @param restMimeFormats
  */
 private void serializeObjectToResponse(WebResponse response, Object result, String mimeType) {
   try {
     response.setContentType(mimeType);
     objSerialDeserial.objectToResponse(result, response, mimeType);
   } catch (Exception e) {
     throw new RuntimeException("Error writing object to response.", e);
   }
 }
  @Override
  public void onResourceRequested() {

    // this is the callback that retrieves matching choices used to populate the dropdown

    Request request = getRequestCycle().getRequest();
    IRequestParameters params = request.getRequestParameters();

    // retrieve choices matching the search term

    String term = params.getParameterValue("term").toOptionalString();

    int page = params.getParameterValue("page").toInt(1);
    // select2 uses 1-based paging, but in wicket world we are used to
    // 0-based
    page -= 1;

    Response<T> response = new Response<T>();
    provider.query(term, page, response);

    // jsonize and write out the choices to the response

    WebResponse webResponse = (WebResponse) getRequestCycle().getResponse();
    webResponse.setContentType("application/json");

    OutputStreamWriter out =
        new OutputStreamWriter(webResponse.getOutputStream(), getRequest().getCharset());
    JSONWriter json = new JSONWriter(out);

    try {
      json.object();
      json.key("results").array();
      for (T item : response) {
        json.object();
        provider.toJson(item, json);
        json.endObject();
      }
      json.endArray();
      json.key("more").value(response.getHasMore()).endObject();
    } catch (JSONException e) {
      throw new RuntimeException("Could not write Json response", e);
    }

    try {
      out.flush();
    } catch (IOException e) {
      throw new RuntimeException("Could not write Json to servlet response", e);
    }
  }
Exemplo n.º 3
0
 @Override
 public void setContentType(WebResponse response, String encoding) {
   response.setContentType("text/xml; charset=" + encoding);
 }