[appengine-java] Re: Uploading Data on Development Server(On local machine)
I am also facing the same issue, does anyone know how to upload data to local datastore. On Aug 1, 9:44 am, MANISH DHIMAN wrote: > I have already tried this, It needs a app.yaml file, but it is a java > application. > I created a yaml file but it gives an error of authentication fail? > > On Jul 31, 6:18 pm, Peter Ondruska wrote: > > >http://code.google.com/appengine/docs/python/tools/uploadingdata.html > > > LoadingDataInto the Development Server > > If you'd like to test how yourdataworks with the app before > > uploading it, you can load it into the development server. Use the -- > > url option to point the tool at the development server URL. For > > example: > > appcfg.py upload_data --config_file=album_loader.py -- > > filename=album_data.csv --kind=Album --url=http://localhost:8080/ > > remote_api > > > On Jul 31, 12:28 pm, MANISH DHIMAN wrote: > > > > Hi Friends, > > > I want touploaddataon mylocalmachine in development mode. May any > > > one provide me information about how to achieve it. > > -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Java Engine Support for PNG writing
Hi, Give a try to TinyLine. I think it does what you need. See demos here http://tinylinegae.appspot.com/ Thanks, Dov On Aug 5, 11:39 pm, Skippy Ta wrote: > Sorry, I should have specified. The current non-GAE version of my app > implements several AWT classes such as Dimension, Color, Point, etc. > I'm trying to get the app engine to draw colored paths using collections of > points. > Our current representation interprets ""stroke" tokens which contain > java.awt.Dimension, Color, etc. properties as mentioned before and are fed > to the batik library PNGTranscoder which produces an output byte stream. > However, we can't encode the data to the stroke tokens in the first place > without the AWT libraries. Are there any libraries that work around it? > > On Tue, Aug 3, 2010 at 10:37 AM, Don Schwarz wrote: > > You just need to render text? > > > Try: http://code.google.com/p/litetext/wiki/AppEngine > > > On Mon, Aug 2, 2010 at 1:04 PM, Skippy Ta wrote: > > >> Currently, my app needs to dynamically write data out to a PNG file, > >> but the JRE white list doesn't support several of the awt classes > >> necessary for this (let alone FileOutputStreams). I found that there > >> was a solution for Python here: > > >>http://stackoverflow.com/questions/2431345/text-to-a-png-on-app-engin... > > >> ...and was wondering if there were any libraries for Java that could > >> produce something to a similar effect. That I'm aware of, I can't > >> think of anything that would do this on the white list. > > >> I've tried Google Charts API but the data I need to draw isn't really > >> compatible with Google Charts' capabilities. > > >> Any pointers? > > >> -- > >> 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 > >> google-appengine-j...@googlegroups.com. > >> To unsubscribe from this group, send email to > >> google-appengine-java+unsubscr...@googlegroups.com > >> . > >> For more options, visit this group at > >>http://groups.google.com/group/google-appengine-java?hl=en. > > > -- > > 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 > > google-appengine-j...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-appengine-java+unsubscr...@googlegroups.com > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] "built-in indices are not efficient enough for this query and your data"
I've just started getting the following error on my server. This query
had been working fine for months, and I haven't changed the indexes
lately. Are there some indexes that just buckle under heavy load or
larger data sets? This particular table contains only 242,604 entries.
The built-in indices are not efficient enough for this query and
your data. Please add a composite index for this query.. An index is
missing but we are unable to tell you which one due to a bug in the
App Engine SDK. If your query only contains equality filters you most
likely need a composite index on all the properties referenced in
those filters.
(full stack dump included below)
My query source code:
Query query = pm.newQuery(GameDataV2.class);
Object[] params;
query.declareParameters(
"com.google.appengine.api.datastore.Key userKeyParam"
+ ", com.honkentuber.wordwise.GameState stateParam1"
+ ", com.honkentuber.wordwise.GameState stateParam2"
+ ", com.honkentuber.wordwise.GameState stateParam3");
params = new Object[4];
params[0] = userKey;
params[1] = GameState.PENDING;
params[2] = GameState.PLAYER_TURN;
params[3] = GameState.OPPONENT_TURN;
query.setFilter("(memberKeys == userKeyParam)"
+ " && ((state == stateParam1)"
+ " || (state == stateParam2)"
+ " || (state == stateParam3))");
List gamesData = (List)
query.executeWithArray(params);
I have the following 2 indexes defined:
memberKeys ▲ , state ▲ , memberLastAccessMs ▲
memberKeys ▲ , state ▲ , memberScores ▼
I'm not sure why I don't have an index with only memberKeys and state
- does datastore-indexes autoGenerate not generate a new index if it
already has a superset index?
I've changed the query to the following in my local development
environment:
Query query = pm.newQuery(GameDataV2.class);
query.setFilter("(memberKeys == :userKeyParam)
&& :statesParam.contains(state)");
List gamesData = (List) query.execute(
userKey,
Arrays.asList(
GameState.PENDING.name(),
GameState.PLAYER_TURN.name(),
GameState.OPPONENT_TURN.name()));
Some questions about this:
1) Running locally with autoGenerate="true", I'm not getting a new
GameDataV2 index on memberKeys and states. Does contains() not require
an index on that field? Is this just generating 2 separate queries
internally?
2) Is the contains() query more efficient than the nested ORs I had in
my original query? Or will I still get the "not efficient enough for
this query and your data" error?
3) Why do enumerated types not work with contains()? I had to
add .name() to each entry in the list to get this to work.
4) Why do declared parameters not work with collections? I tried
declaring statesParam as a both List and List, and I got
errors resolving the types.
com.google.appengine.api.datastore.DatastoreNeedIndexException: The
built-in indices are not efficient enough for this query and your
data. Please add a composite index for this query.. An index is
missing but we are unable to tell you which one due to a bug in the
App Engine SDK. If your query only contains equality filters you most
likely need a composite index on all the properties referenced in
those filters.
at
com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:
40)
at
com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java:
67)
at
com.google.appengine.api.datastore.PreparedQueryImpl.runQuery(PreparedQueryImpl.java:
127)
at
com.google.appengine.api.datastore.PreparedQueryImpl.asIterator(PreparedQueryImpl.java:
87)
at com.google.appengine.api.datastore.PreparedMultiQuery
$DedupingMultiQueryIterator.getNextIterator(PreparedMultiQuery.java:
154)
at com.google.appengine.api.datastore.PreparedMultiQuery
$DedupingMultiQueryIterator.computeNext(PreparedMultiQuery.java:173)
at com.google.appengine.api.datastore.PreparedMultiQuery
$DedupingMultiQueryIterator.computeNext(PreparedMultiQuery.java:98)
at
com.google.appengine.api.datastore.AbstractIterator.tryToComputeNext(AbstractIterator.java:
52)
at
com.google.appengine.api.datastore.AbstractIterator.hasNext(AbstractIterator.java:
47)
at com.google.appengine.api.datastore.BasePreparedQuery
$UncompilablePreparedQuery$1.hasNext(BasePreparedQuery.java:78)
at
org.datanucleus.store.appengine.query.RuntimeExceptionWrappingIterator.hasNext(RuntimeExceptionWrappingIterator.java:
44)
at
org.datanucleus.store.appengine.query.LazyResult.resolveAll(LazyResult.java:
115)
at
org.datanucleus.store.appengine.query.LazyResult.size(LazyResult.java:
110)
at
org.datanucleus.store.appengine.query.StreamingQueryResult.size(StreamingQueryResult.java:
124)
at
org.datanucleus.store.query.AbstractQueryResult.toArray(AbstractQueryResult.java:
399)
at java.util.ArrayList.addAll(Unknown
[appengine-java] Re: Can Jade run on GAE?
If no one ever tried it you can try check frameworks jade might depend on and leave comments here: http://groups.google.com/group/google-appengine-java/web/will-it-play-in-app-engine In general jade would have to comply to the sandbox environment described here: http://code.google.com/intl/de-DE/appengine/docs/java/runtime.html Most importantly: 1) no new threads may ever be spun off 2) no operation may take longer than 30 seconds Hope this helps. On 6 Aug., 08:05, Hank Chang wrote: > We will write an application to use Jade (http://jade.tilab.com/). Can > Jade run on GAE? -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] i18n translations
I can help in publishing in Tamil. தமிழ் - tamil Thanks Hari 2010/8/5 ale > Hi everybody, > > I'm finishing to develop a web application with GWT + GAE, and I want > to publish in multiple languages. > > The application is about sport, and the message file is about 400 > lines mostly consist of one word. > > Is there anyone who can translate it into his native language? > In return he will receive my infinite gratitude, I will write his/her > name in the thanks page of my site with a link to what he wants. > And of course I will be happy to return the favor by translating into > Italian! > Any language is OK, even English, (I'n not speak wery well, so will be > full of errors!) > > I posted the same request yesterday on the GWT group and 3 person > answer me for spanish, marathi, hindi and swedish. > > Thank you, thank you! > > Alessandro > > -- > 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 > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Invalidating users session
When i tried using session.Invalidate method, during logout, the logout time increased and the cpu consumption by logout was also high. I could not find reason behind it. Thanks Hari 2010/8/6 Ice13ill > This is more of a java servlet/session question, but it's also > referring AppEngine's user service: > Is there a way of invalidating a certain user's session ? > for example, an admin modifies a certain user's permissions and > because of that, i need to invalidate that user's session. > Can i do this with standard java classes like HttpSession, > ServletContext etc. Or if i use app engine's user service, can i > invalidate in the admin's call another's user google session (to force > him to login to google again?) > > PS. regardin ah_SESSION objects, are they cleaned by the app engine's > mechanism? (when i call session.invalidate()) or do i have ti build my > own logic to clean them? > > -- > 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 > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] sharded counter report
Hello, I am basing my entities design based on the sharded counter example for my accounting webapp. Extending the sharded counter case further... Lets say I have a website of 500 pages. I want to track the number of hits of each page and then I want a report like this: Page1 - Nohits Page2 - Nohits Page3 - Nohits Page 500 - Nohits. Per the sharded counter example, lets say there are 10 shards for each page counter. So, there will be 5000 rows in all for 500 pages/counters. To get a report like above: * query the Counter class sorted by counter name - max 1000 entities are returned * calculate the nohits for the page based on the countername from the results. * Use the cursor, then query for further rows until all the rows are read. * After each query, traverse the results and do the calculation for the nohits for the pages * The query will be issued for atleast 5 times and then it is done. Questions: * Do you see a 30 second timeout limit of the appengine while performing the above. * what if I increase the number of shards from 10 to 100 for each counter. The number of rows will be (500 * 100 = 5). This means, 50 queries to be issued. * Any other better ways to get the above report * Any datamodel changes can be applied without sacrificing on the throughput of the appengine transactions. -Aswath -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Dates and TimeZones
The UTC time is the same everywhere at the same time.
The trick is to format the date-time for a time zone.
I use the following:
GregorianCalendar gcUK = new GregorianCalendar(Locale.UK);
TimeZone tzUK = TimeZone.getTimeZone("Europe/London");
gcUK.setTimeZone(tzUK);
gcUK.setTime(new Date());
DateFormat dfUK =
SimpleDateFormat.getDateTimeInstance(SimpleDateFormat.MEDIUM,
SimpleDateFormat.MEDIUM, Locale.UK);
dfUK.setCalendar(gcUK);
String sDate = dfUK.format(dtDateTime);
Choose your own locale and time zone. Enjoy?
On Aug 6, 5:38 pm, Stephen wrote:
> If I run :
>
> Date now = new Date();
> System.out.println(now);
>
> from the main method of a plain java class I get :
> Fri Aug 06 11:33:00 CDT 2010 as expected.
>
> If I run that same code in a JSP app engine gives me :
> Fri Aug 06 11:33:00 UTC 2010
>
> Run that same JSP on tomcat and again I get :
> Fri Aug 06 11:33:00 CDT 2010 as expected.
>
> Even if I try to set the timezone manually I still get UTC from a JSP
> hosted by app engine.
> Any ideas what is going on here?
>
> Thanks in advance.
--
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