コード例 #1
0
  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {

    String source = req.getParameter("source");
    ImagesService imagesService = ImagesServiceFactory.getImagesService();

    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();

    List<Filter> filters = new ArrayList<Filter>();
    Query query = new Query(GAEFeedRepository.FEED_ITEM_KIND);
    filters.add(new Query.FilterPredicate("source", FilterOperator.EQUAL, source));
    filters.add(new Query.FilterPredicate("img1A", FilterOperator.EQUAL, 1));
    filters.add(new Query.FilterPredicate("img2A", FilterOperator.EQUAL, 1));

    query.setFilter(CompositeFilterOperator.and(filters));

    query.addSort("publishedDate", SortDirection.DESCENDING);
    PreparedQuery pq = datastore.prepare(query);
    int pageSize = 30;

    resp.setContentType("text/html");
    resp.getWriter().println(" <ul>");

    FetchOptions fetchOptions = FetchOptions.Builder.withLimit(pageSize);
    String startCursor = req.getParameter("cursor");

    // If this servlet is passed a cursor parameter, let's use it
    if (startCursor != null) {
      fetchOptions.startCursor(Cursor.fromWebSafeString(startCursor));
    }

    QueryResultList<Entity> results = pq.asQueryResultList(fetchOptions);
    for (Entity entity : results) {
      resp.getWriter()
          .println(
              "<li>"
                  + entity.getProperty("imageLink")
                  + " / "
                  + imagesService.getServingUrl(
                      ServingUrlOptions.Builder.withBlobKey((BlobKey) entity.getProperty("img2")))
                  + " / <img height=40 width=40 src=\""
                  + imagesService.getServingUrl(
                      ServingUrlOptions.Builder.withBlobKey((BlobKey) entity.getProperty("img2")))
                  + "\" />");
    }

    resp.getWriter().println("</li>  </entity></ul>  ");

    String cursor = results.getCursor().toWebSafeString();

    // Assuming this servlet lives at '/people'
    resp.getWriter()
        .println(
            "<a href=\"/p8admin/ListFeedItems?cursor="
                + cursor
                + "&source="
                + source
                + "\">Next page</a>");
  }
コード例 #2
0
 public static String getDownloadUrl(ImageRef ref) {
   ImagesService imagesService = ImagesServiceFactory.getImagesService();
   return imagesService.getServingUrl(
       ServingUrlOptions.Builder.withBlobKey(getBlobkKey(ref))
           .imageSize(ImagesService.SERVING_SIZES_LIMIT));
 }