google-app-engine

Ajax Crawling on Google App Engine - Does HtmlUnit work?

http://code.google.com/web/ajaxcrawling/docs/html-snapshot.html Does HtmlUnit work on AppEngine? If not, are there any other ways to make my GWT app crawlable by search engines? ...

Exception while using JavaMail with Google AppEngine: How to fix this??

Hi All, I am trying to write a Java program using JavaMail to send an email between 2 users. I have NOT added mail.jar and activation.jar files to my appengine project as I read somewhere that this would cause exceptions to be thrown since the functionality is already available with the appengine .jar files. But my program is throwing t...

XML Error Validating appengine-web.xml

I get this error when I try to deploy to Google AppEngine: com.google.apphosting.utils.config.AppEngineConfigException: XML error validating /Users/matt/Documents/workspace/myapp222/war/WEB-INF/appengine-web.xml against /Users/matt/Downloads/eclipse 7/plugins/com.google.appengine.eclipse.sdkbundle.1.3.1_1.3.1.v201002101412/appengine-jav...

Python: How to Capture WebPage as Image File?

I want to cache a webpage as an image upon a user request, but I don't know where to start with this. I'm developing on App Engine with python. ...

GAE logout url giving error 404

My GAE java based application uses only one google user - the admin. For the admin web pages I generate the logout url using UserServiceFactory.getUserService().createLogoutURL("/") The generated url is always having a /zero at the end and clicking on it gives 'Error 404 NOT_FOUND'. I The problem occurs on development server as wel...

Google AppEngine Indexing Delay

Am trying to deploy a app to Google AppEngine. But the DataStore index building seems to take forever. The contents of my index.yaml indexes: # AUTOGENERATED # This index.yaml is automatically updated whenever the dev_appserver # detects that a new type of query is run. If you want to manage the # index.yaml file manually, remove th...

Refactoring packages containing JDO @PersistenceCapable classes in Google App Engine

I have a set of JDO persistence capable classes in packages that need to be refactored. I know if you change the class name then you need to update the "BigTables" objects. However, if I change the package the java objects belong to, will this mean the data objects in "BigTables" need to be somehow updated? ie com.example.test.Person -...

How to generate a Doodle like poll id on app engine?

I would like to generate an id for a poll that can be used in links. The id should not be not to easy to guess. Is there a preferred way to generate such an id on google app engine? ...

Google App Engine JDO problem

How to store complex objects? I have an object in its list of child objects in the child object has four list of child objects when calling makePersistent (person) object is not saved. Help!!!!!!!!!!!! I am call pm.makePersistent(); but Lists @Persistent private List<ChoosedElementEntity> choosedElements = new ArrayList<ChoosedEl...

GaeUtilities: Session Problem

Hi, I'm programming an application with google app engine, with django 1.1 (no django pacth or others), well as you know is impossible use django login and session features so I download Gae utility and use Session Object (http://gaeutilities.appspot.com/) but some time this object create 2 sessions instead 1 session ... here's code d...

How to make case insensitive filter queries with Google App Engine?

Hi All, I am working on a GAE Django Project where I have to implementing the search functionality, I have written a query and it fetches the data according to the search keyword. portfolio = Portfolio.all().filter('full_name >=',key).filter('full_name <',unicode(key) + u'\ufffd') The issue with this query is, that it is case sensiti...

Bulk Upload XML data to Google App Engine Using the YAML config method

Hi, I would like to bulk load the wurfl database (http://wurfl.sourceforge.net/) and I am not quite sure how to structure my data entities as well as how to write the transforms for the bulkloader config file. Here is a sample of a node from the wurfl file: <device id="generic" user_agent="" fall_back="root"> <group id="product...

Sending email from my domain vs from the admin google account?

I have a domain xyz.com and right now it is pointing to my app in appspot. I want to send email alerts to users for various events. However, appengine restricts email sender to admin email address which was used to create the google app engine account. Can I send emails on behalf of [email protected] using app engine? If not, is there a simp...

App Engine downtime

Does Google's App Engine have excessive downtime, specifically with regards to datastore writes? Additionally, downtime seems to be scheduled during high traffic times, e.g., in the middle of the afternoon vs. 3:00AM in the morning. Is this normal? Will it improve as the technology matures? ...

Google blobstore and HTTP 206 responses

The Google Blobstore recently added support for serving partial byte ranges from a blob. When this method is invoked the response is generated with a HTTP 206 (Partial Content) status code. So it looks like app engine assumes that it is always serving a Range request in this case. However, in my case I have bundled many files into one b...

How to know what image type user submitted in form?

Hi, I allow my users to upload avatar images (google app engine, java). I don't know what image type it is when they upload. I'm just storing whatever they give me in their submission form. I'm following the example here: http://code.google.com/appengine/docs/python/images/usingimages.html Is there a way to check what image type it is...

Why am I getting this exception in GAE

I just tested and redeployed my application to a test instance, and it worked fine, then i changed the app id and redeployed to my production instance, and I get an indexing problem. How do I avoid this in the future? I went to the effort to test it first and it worked fine! Uncaught exception from servlet com.google.appengine.api.datas...

app engine: development server time is off?

Ok, I know I must be missing something, but my development server timestamp is off by 4 hours. I am running Mac OS X Leopard Server. The date command in a Terminal shows the correct time. I am in Eastern Standard Time (GMT -5). Is this a devserver setting? ...

Using memcache in google app engine

I have created an app using GAE. I am expecting 100k request daily. At present for each request app need to lookup 4 tables and 8 diff columns before performing needed task. These 4 tables are my master tables having 5k,500, 200 and 30 records. It is under 1 MB (The limit). Now I want to put my master records in memcache for faster acc...

Does Django message middleware not work with app engine?

Hi All, I am trying to implement the message middleware in my Django App engine project but its giving the an error message like: ImproperlyConfigured: Error importing middleware mediautils.middleware: "No module named messages" I have followed the link http://djangoadvent.com/1.2/messages-rest-us/ to implement it. Is it not possibl...