client sided applications

[Martin Rosellen]

Hi@all,

right now I am trying to implement a webapp that should do data cleaning
and analysis. I already have a prototype written in Java for the
cleaning part and it is not using struts yet.

Because I do not want to hire a big server I tend to let the client do
most of the calculating.

Is struts the right framework to implement a mostly client sided
application?

I am not really into struts right now and also can't find a satisfying
answer on the internet. Perhaps you can know a good tutorial or a
website that helps me with my question.

greetz,
Martin






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[Maurizio Cucchiara-2]

First or later your data will send through the application server, in this
case struts could help you.
Maybe the rest and json plugins are the best candidate for your use case.
Since struts2 is able to handle json and rest architecture, every js client
library and every related tutorial could help you.

http://struts.apache.org/2.x/docs/json-plugin.html
http://struts.apache.org/2.x/docs/rest-plugin.html

Twitter     :http://www.twitter.com/m_cucchiara
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Maurizio Cucchiara


On 31 July 2012 12:13, Martin Rosellen <[hidden email]> wrote:

> Hi@all,
>
> right now I am trying to implement a webapp that should do data cleaning
> and analysis. I already have a prototype written in Java for the cleaning
> part and it is not using struts yet.
>
> Because I do not want to hire a big server I tend to let the client do
> most of the calculating.
>
> Is struts the right framework to implement a mostly client sided
> application?
>
> I am not really into struts right now and also can't find a satisfying
> answer on the internet. Perhaps you can know a good tutorial or a website
> that helps me with my question.
>
> greetz,
> Martin
>
>
>
>
>
>
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> To unsubscribe, e-mail: user-unsubscribe@struts.**apache.org<[hidden email]>
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>
>

[Lukasz Lenart]

2012/7/31 Martin Rosellen <[hidden email]>:

> Hi@all,
>
> right now I am trying to implement a webapp that should do data cleaning and
> analysis. I already have a prototype written in Java for the cleaning part
> and it is not using struts yet.
>
> Because I do not want to hire a big server I tend to let the client do most
> of the calculating.
>
> Is struts the right framework to implement a mostly client sided
> application?

Struts2 will produce a pure HTML so I don't think that you are
planning to write all the calculations in HTML5 ;-)
Maybe some applet base app would be better as a client.


Regards
--
Łukasz
+ 48 606 323 122 http://www.lenart.org.pl/

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[john feng]

It looks like we should not reply too soon. Is the data cleansing a
continous task or one time thing? It looks it's a repeated task. Where is
the data in database or file system and file format? If in the database,
using Java application is not any better than the db procedures that can be
invoked by java application or web client on demand. If it's in file
system, using java application looks not bad; but to speed up, you may load
the files to a database then using database power to clean up the data.
which is much quicker than a Java program if the volume of the data is huge.

All in all, the use case is not clear for one to compare the pros and cons
for an approach. Struts is just a framework to help you design your
application quick or neater (it supposes not gurantees).


On Tue, Jul 31, 2012 at 6:13 AM, Martin Rosellen <
[hidden email]> wrote:

> Hi@all,
>
> right now I am trying to implement a webapp that should do data cleaning
> and analysis. I already have a prototype written in Java for the cleaning
> part and it is not using struts yet.
>
> Because I do not want to hire a big server I tend to let the client do
> most of the calculating.
>
> Is struts the right framework to implement a mostly client sided
> application?
>
> I am not really into struts right now and also can't find a satisfying
> answer on the internet. Perhaps you can know a good tutorial or a website
> that helps me with my question.
>
> greetz,
> Martin
>
>
>
>
>
>
> ------------------------------**------------------------------**---------
> To unsubscribe, e-mail: user-unsubscribe@struts.**apache.org<[hidden email]>
> For additional commands, e-mail: [hidden email]
>
>

[Davis, Chad]

> right now I am trying to implement a webapp that should do data cleaning
> and analysis. I already have a prototype written in Java for the cleaning part
> and it is not using struts yet.

Do you mean that you've written a Java application that connects to the db to do this work?

>
> Because I do not want to hire a big server I tend to let the client do most of
> the calculating.
>

What server?

> Is struts the right framework to implement a mostly client sided application?
>

Only if you are interested in a web based client . . . struts is almost entirely focused on HTTP requests.



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[Martin Rosellen]

Thanks to you all for the quick answers.

>> right now I am trying to implement a webapp that should do data cleaning
>> and analysis. I already have a prototype written in Java for the cleaning part
>> and it is not using struts yet.
> Do you mean that you've written a Java application that connects to the db to do this work?
At the moment I only read .csv files that don't get bigger than 20mb.
Later I might get files much much bigger (1gb or so).
>
>> Because I do not want to hire a big server I tend to let the client do most of
>> the calculating.
>>
> What server?
Some of my cleaning procedures take a lot of time, so I might need fast
hardware.
>
>> Is struts the right framework to implement a mostly client sided application?
>>
> Only if you are interested in a web based client . . . struts is almost entirely focused on HTTP requests.
I'm not sure if a web based solution is the right way to go. On the one
hand the data transfer from the client to the server might get very big.
On the other hand the procedures are very complex and might take a lot
of time to calculate on a slow client. Do you know any papers or
articles that gives advice when to use what technology? How can I
scientifically determine where my bottle neck will be?

Kind regards and thanks again
Martin




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[john feng]

You know the data irregularity pattern that needs to be fixed, thus if you
have a dbms system such as Oracle, DB2/UDB, etc., then load these csv files
into tables to hold all the data, then write the sql scripting or stored
procedures to fix the irregular data. (Note, before loading the files, if
the csv files contain bad carriage return signs, you may download open
source IBM symphony v1.3 or earlier to open the csv file and save to as csv
file again, which will clean the bad carriage returns well. MS Excel can
not do it while display file well for newer version, while 2003 version can
only display 1M lines or so.) My experience is that Java
program/application will not beat the database sql scripting or stored
procedure processing. You may use web page/desktop application GUI to issue
the selecting and loading files, then starting cleansing commands in the
database on demand but do not show the data on gui by all means. Or use new
file coming to trigger the processing or nightly cronjob to run.

This was my experience, glad to hear other options in action.

On Thu, Aug 2, 2012 at 5:42 AM, Martin Rosellen <
[hidden email]> wrote:

> Thanks to you all for the quick answers.
>
>
>  right now I am trying to implement a webapp that should do data cleaning
>>> and analysis. I already have a prototype written in Java for the
>>> cleaning part
>>> and it is not using struts yet.
>>>
>> Do you mean that you've written a Java application that connects to the
>> db to do this work?
>>
> At the moment I only read .csv files that don't get bigger than 20mb.
> Later I might get files much much bigger (1gb or so).
>
>
>>  Because I do not want to hire a big server I tend to let the client do
>>> most of
>>> the calculating.
>>>
>>>  What server?
>>
> Some of my cleaning procedures take a lot of time, so I might need fast
> hardware.
>
>
>>  Is struts the right framework to implement a mostly client sided
>>> application?
>>>
>>>  Only if you are interested in a web based client . . . struts is almost
>> entirely focused on HTTP requests.
>>
> I'm not sure if a web based solution is the right way to go. On the one
> hand the data transfer from the client to the server might get very big. On
> the other hand the procedures are very complex and might take a lot of time
> to calculate on a slow client. Do you know any papers or articles that
> gives advice when to use what technology? How can I scientifically
> determine where my bottle neck will be?
>
> Kind regards and thanks again
> Martin
>
>
>
>
>
> ------------------------------**------------------------------**---------
> To unsubscribe, e-mail: user-unsubscribe@struts.**apache.org<[hidden email]>
> For additional commands, e-mail: [hidden email]
>
>