Examples of org.apache.shindig.gadgets.preload.Preloads

Package org.apache.shindig.gadgets.preload

Examples of org.apache.shindig.gadgets.preload.Preloads

org.apache.shindig.gadgets.preload.Preloads
Container that holds preload operations, which are actually contained as futures.

    try {
      View view = gadget.getCurrentView();
      GadgetContext context = gadget.getContext();
      GadgetSpec spec = gadget.getSpec();


      Preloads preloads = preloader.preload(context, spec);
      gadget.setPreloads(preloads);


      if (view.getHref() == null) {
        return rewriter.rewriteGadget(gadget, view.getContent());
      } else {

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   *
   * If preloading fails for any reason, we just output an empty object.
   */
  private void injectPreloads(Gadget gadget, Node scriptTag) {
    JSONObject preload = new JSONObject();
    Preloads preloads = gadget.getPreloads();


    for (String name : preloads.getKeys()) {
      try {
        preload.put(name, preloads.getData(name).toJson());
      } catch (PreloadException e) {
        // This will be thrown in the event of some unexpected exception. We can move on.
        LOG.log(Level.WARNING, "Unexpected error attempting to preload " + name, e);
      } catch (JSONException e) {
        // Shouldn't ever happen. Probably indicates a big problem, so we'll abort.

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    // Other types are supported (anything valid for org.json.JSONObject), but equality comparisons
    // are more complicated because JSON doesn't implement interfaces like Collection or Map, or
    // implementing equals.


    Preloads preloads = new Preloads() {


      public PreloadedData getData(final String key) {
        return new PreloadedData() {
          public Object toJson() {
            return preloadData.get(key);

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    }
  }


  @Test
  public void failedPreloadHandledGracefully() throws Exception {
    Preloads preloads = new Preloads() {
      public PreloadedData getData(final String key) throws PreloadException {
        throw new PreloadException("broken");
      }
      public Set<String> getKeys() {
        return ImmutableSortedSet.of("foo");

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Related Classes of org.apache.shindig.gadgets.preload.Preloads

org.apache.shindig.gadgets.render.HtmlRenderer

org.apache.shindig.gadgets.render.RenderingContentRewriter

org.apache.shindig.gadgets.render.RenderingContentRewriterTest

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