Is the server on which your JPEG is hosted especially slow? Note that the default timeout limit for URL Fetch requests is 5 seconds. You can increase this up to 10 by passing 10000 (ms) into setConnectTimeout().
Also keep in mind that your image will have to be smaller than 1 MB if you're planning to use it with the Images service or store it in the datastore. - Jason On Wed, Oct 28, 2009 at 8:37 AM, nicanor.babula <[email protected]>wrote: > > Hello everyone, > > I have somewhere on the net a servlet that serves jpeg images. In > order to verify that it works I made a html page with: > <img src="http://myurl/servlet?id=123"; /> > and the image is displayed well. > > Now, I am trying to create an GAE image object from the data arriving > from that servlet. How can I do? > So far I tried this code*[1], with a lot of variations, and I keep > getting timeouts and "The API call urlfetch.Fetch() took too long to > respond and was cancelled." error message in my application's logs. > > Locally, in the development server, it works. > > I also tried storing this images in the datastore and serving them > directly from GAE. > Example of image url: http://almaoffice0.appspot.com/GetImage?id=24001 > > > Any ideas? > > *[1]: the code: > > ImagesService imagesService = > ImagesServiceFactory.getImagesService(); > try { > URL url = new URL(stringUrl); > HttpURLConnection connection = (HttpURLConnection) > url.openConnection(); > connection.setRequestMethod("GET"); > connection.setReadTimeout(0); > connection.setRequestProperty("ContentType", "image/ > jpeg"); > connection.setDoInput(true); > > if(connection.getResponseCode() == > HttpURLConnection.HTTP_OK){ > InputStream in = connection.getInputStream(); > byte[] imgData = new byte[in.available()]; > in.read(imgData); > Image oldImg = ImagesServiceFactory.makeImage > (imgData); > Transform resize = ImagesServiceFactory.makeResize > (oldImg.getWidth(), oldImg.getHeight()); > // I do an useless transformation, in order to force > the conversion to jpeg > return imagesService.applyTransform(resize, oldImg, > ImagesService.OutputEncoding.JPEG); > } else { > throw new Exception("cannot retrieve image @ " + > stringUrl); > } > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~----------~----~----~----~------~----~------~--~---
