date:20140228

Re: [google-appengine] java.lang.NoClassDefFoundError: com/google/api/client/extensions/appengine/auth/oauth2/AbstractAppEngineAuthorizationCodeServlet

2014-02-28 Thread Amit Rai

Hi Vinny Thanks for reply,

I am not as much aware with maven.but here wat code I have is using maven
only.And I given jar file manually with java build path.
Is it the problem.

*Amit Rai */ Google Developer
07th Floor,Tower-2, e -City, Electronic City, 1st Phase.
Bangalore.560100 / India
Extn: 7814, P: (+91) 8050637 782
E: amit@sial.com
*www.sigmaaldrich.com*http://www.sigmaaldrich.com/

On Fri, Feb 28, 2014 at 1:15 PM, Vinny P vinny...@gmail.com wrote:

On Thu, Feb 27, 2014 at 8:49 AM, Amit Rai amit@sial.com wrote:

I have included all the dependency jar file and build path also.And this
code is compiled successfully but while running in localhost
its giving following error.

org.mortbay.util.MultiException[java.lang.NoClassDefFoundError:
com/google/api/client/extensions/appengine/auth/oauth2/AbstractAppEngineAuthorizationCodeCallbackServlet,
java.lang.NoClassDefFoundError:
com/google/api/client/extensions/appengine/auth/oauth2/AbstractAppEngineAuthorizationCodeServlet]

Are you including the JAR dependencies via Maven or by manually placing
the library JAR? If you're manually placing the JAR file, where did you
originally download the file from? Can you open up the JAR and double check
that the missing classes are included?

-
-Vinny P
Technology Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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inline: image/gif

Re: [google-appengine] filter logs by user?

2014-02-28 Thread stephanos

Thanks for your detailed answer, Vinny!

We don't use Google authentication but our own, so I guess we are out of 
luck and have to resort to matching simple log messages. I'm wondering, 
regular expression wise, what would be the best way to mark each request 
with the user and company name. The goal would be to have zero accidental 
matches of other log messages.

Maybe something like:

*user:bob.harris company:google*


So by using '' and '' as well as an identifier I could match requests 
made by a person or a company.

Do you think there is a better way?


On Friday, February 28, 2014 8:49:10 AM UTC+1, Vinny P wrote:

 On Wed, Feb 26, 2014 at 8:35 AM, stephanos stephan...@gmail.comjavascript:
  wrote:

 we would like to filter our logs by user as well as by company. 
 The dashboard provides filtering by Labels and explains that these are 
 regular expressions for filtering Apache Combined logs. It also lists a 
 few valid labels including user and identd_user.
 How can I specify the values for those labels so that App Engine will 
 parse them correctly?



 Hi Stephan,

 It's a fairly straightforward regular expression. Here's a simple example: 
 I uploaded a Go application which uses Google Accounts to log in, then 
 logged in with my *vinnyapp* Gmail account. Then I went into logs and 
 searched for my login. Here's an example of the search (note that the 
 *labels* radiobox is selected): http://imgur.com/1qeJ5tZ  and here's an 
 example of one of the logs that the search pulled up: 
 http://imgur.com/XteD1FN . Note that my Google account is listed in the 
 logs.

 If you're using the built-in Users service, the logs should automatically 
 record the user logging in. If you're not, then you'll have to find a 
 different way of recording the current user and inspecting the logs.
   

 -
 -Vinny P
 Technology  Media Advisor
 Chicago, IL

 App Engine Code Samples: http://www.learntogoogleit.com
  

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Re: [google-appengine] Have anyone tried to port a java project with heavy framworks, such as struts and spring, to a pure jsp/servlet project?

2014-02-28 Thread Rafael

Hi De Witte,

That would happen if you are successful. Imagine building a complex app
using app engine.
It's pretty difficult to stay away from modules.

For example:
imagine a social network scenario, where you have long running tasks
competing with frontend requests.
then put britney spears sending a message and blasting thousands of tasks
for push notifications.

Modules have two good things:
1) different scaling and memory configuration.
2) separate the code into chunks of smaller packages. (you don't need
spring for everything)

Although, modules have big drawbacks:
1) impossible to develop without throwing the mouse on the wall sometimes.
2) hate maven integration. (half baked)
3) hate the appengine IDE integration (half baked)
4) hate the dispatch.xml (half baked)

thanks
rafa

On Thu, Feb 27, 2014 at 9:02 AM, de Witte wd.dewi...@gmail.com wrote:

We don't use modules, why should you? Do you have a requirement which
cannot be done without them?

Op donderdag 27 februari 2014 02:58:56 UTC+1 schreef Rafael Sanches:

De Witte,

Do you have a multi module project?

How do you handle that without module? The eclipse plugin doesn't work
with that setup.

thanks
rafa

On Wed, Feb 26, 2014 at 3:45 PM, de Witte wd.de...@gmail.com wrote:

We have been working with Java and GAE for several years now and so far
no problems.

AngularJs + ExtJS 4.0 is a good combo for the front end. Although I
prefer GWT.

Spring+Maven is a headache even without GAE. We have been avoiding it
and doing fine.

Op maandag 24 februari 2014 03:11:22 UTC+1 schreef Rafael Sanches:

Not being updated doesn't mean it doesn't work properly.

GAE + java is definitely frustrating, but some of your statements are a
bit too broad ;)

On Sun, Feb 23, 2014 at 12:44 AM, Tapir tapi...@gmail.com wrote:

On Sunday, February 23, 2014 1:47:28 PM UTC+8, Rafael Sanches wrote:

Can you try and let us all know? it may be the solution you're
looking for.

The Google App Engine module for Play has not been updated for 2
years! :(

For another one, Objectify , https://code.google.com/p/play
-framework-objectify/, the showcase on this page need 15 seconds to
load. :(

The decision is made, I will never use java for web development any
more, for many reasons, such as not support hot deploy, large memory
consumption, too many configurations, too many hidden elements, and too
slow startup on GAE.

On Thu, Feb 20, 2014 at 8:29 PM, Tapir tapi...@gmail.com wrote:

On Friday, February 21, 2014 5:39:17 AM UTC+8, Rafael Sanches wrote:

Have you tried playframework? They have optimizations to make your
life easier when developing.

My life is living hell right now when developing with maven and
appengine. The play framework solves that by running their own thing.

Read more:
http://www.playframework.com/documentation/1.0/gaehttp://www.google.com/url?q=http%3A%2F%2Fwww.playframework.com%2Fdocumentation%2F1.0%2Fgaesa=Dsntz=1usg=AFQjCNFObfH5yu11uniN9ReUNUVgFDtbGg

I don't think they can bypass the core GAE SDK lib.
The problem of GAE Java is at the core GAE SDK lib.

On Wed, Feb 19, 2014 at 7:24 PM, Tapir tapi...@gmail.com wrote:

On Thursday, February 20, 2014 6:26:52 AM UTC+8, Emanuele Ziglioli
wrote:

Great stuff

hope you don't move to Go too soon!

Why?
It is a way of no ways.

On Thursday, 20 February 2014 03:52:33 UTC+13, Tapir wrote:

On Tuesday, February 18, 2014 6:43:56 PM UTC+8, Tapir wrote:

On Tuesday, February 18, 2014 4:56:51 PM UTC+8, Rafael Sanches
wrote:

very interesting...

can you tell me how you did that? in a maven build or only via
eclipse?

neither, I did it manually.

ok, the new test result:
1. if I remove all jar files from the war/WEB-INF/lib, the
warmup time is about 2.3 seconds.
2. if I put the only the core app engine sdk jar file in
war/WEB-INF/lib, but doesn't reference it, the warmup time is
about 2.9
seconds.
3. if I put DatastoreService datastore =
DatastoreServiceFactory.getDatastoreService(); in the jsp
file but do nothing eslse, the warmup time is 3.5 seconds
4. if I put a query in the default jsp file, the warmup time is
4.7 seconds.
5. if I convert query result as list, the warmup time is 6
seconds.

made some new tests today. The results are some different.

===

First, the impact of number of lib jar files:
1. no lib jar files, warm up time = 3 seconds (slower than
yesterday)
2. one core lib jar file, no refs, warm up time = 5 seconds
(slower than yesterday)
3. four core lib jar files (the ones under sdk user folder), no
refs, warm up time = 5.7 seconds
4. fifty-four jar files (used in my projects) , no refs, warm up
time = 6.2 seconds

So, obviously, the core GAE SDK lib files have a big impact on
the warm up time.

Second, number of references of core sdk lib.
1. no refs, 3.5 seconds
2. fewer refs, 4.4 seconds, by adding

Re: [google-appengine] Have anyone tried to port a java project with heavy framworks, such as struts and spring, to a pure jsp/servlet project?

2014-02-28 Thread Rafael

sorry, my last phrase was confusing, I meant: That would happen if you are
successful building a complex architecture using app engine

On Fri, Feb 28, 2014 at 1:00 AM, Rafael mufumb...@gmail.com wrote:

Hi De Witte,

That would happen if you are successful. Imagine building a complex app
using app engine.
It's pretty difficult to stay away from modules.

Modules have two good things:
1) different scaling and memory configuration.
2) separate the code into chunks of smaller packages. (you don't need
spring for everything)

thanks
rafa

On Thu, Feb 27, 2014 at 9:02 AM, de Witte wd.dewi...@gmail.com wrote:

We don't use modules, why should you? Do you have a requirement which
cannot be done without them?

Op donderdag 27 februari 2014 02:58:56 UTC+1 schreef Rafael Sanches:

De Witte,

Do you have a multi module project?

How do you handle that without module? The eclipse plugin doesn't work
with that setup.

thanks
rafa

On Wed, Feb 26, 2014 at 3:45 PM, de Witte wd.de...@gmail.com wrote:

We have been working with Java and GAE for several years now and so far
no problems.

AngularJs + ExtJS 4.0 is a good combo for the front end. Although I
prefer GWT.

Spring+Maven is a headache even without GAE. We have been avoiding it
and doing fine.

Op maandag 24 februari 2014 03:11:22 UTC+1 schreef Rafael Sanches:

Not being updated doesn't mean it doesn't work properly.

GAE + java is definitely frustrating, but some of your statements are
a bit too broad ;)