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Posted to commits@wicket.apache.org by "Esteban (JIRA)" <ji...@apache.org> on 2009/09/15 19:35:57 UTC

[jira] Created: (WICKET-2469) Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class

Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class
--------------------------------------------------------------------------------------------------

                 Key: WICKET-2469
                 URL: https://issues.apache.org/jira/browse/WICKET-2469
             Project: Wicket
          Issue Type: Improvement
          Components: wicket
    Affects Versions: 1.4.1
         Environment: Anyone
            Reporter: Esteban
            Priority: Minor


Hi there:

In MultipartServletWebRequest constructor we have:
...
(line 93) DiskFileItemFactory factory = new DiskFileItemFactory();
...
which inhibits anyone from reusing MultipartServletWebRequest  with a different factory. The only solution is generate a new class that is a copy of this one, with that line changed.

The suggestion is to extract this code into a protected method, so we could just extend this class when there's a need to use a different factory (as in GAE applications).  
A diff file is added.

Thanks in advance,

Esteban


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[jira] Updated: (WICKET-2469) Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class

Posted by "Esteban Masoero (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/WICKET-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Esteban Masoero updated WICKET-2469:
------------------------------------

    Attachment: refactor.diff

> Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class
> --------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-2469
>                 URL: https://issues.apache.org/jira/browse/WICKET-2469
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.4.1
>         Environment: Anyone
>            Reporter: Esteban Masoero
>            Priority: Minor
>         Attachments: refactor.diff
>
>
> Hi there:
> In MultipartServletWebRequest constructor we have:
> ...
> (line 93) DiskFileItemFactory factory = new DiskFileItemFactory();
> ...
> which inhibits anyone from reusing MultipartServletWebRequest  with a different factory. The only solution is generate a new class that is a copy of this one, with that line changed.
> The suggestion is to extract this code into a protected method, so we could just extend this class when there's a need to use a different factory (as in GAE applications).  
> A diff file is added.
> Thanks in advance,
> Esteban

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[jira] Resolved: (WICKET-2469) Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class

Posted by "Igor Vaynberg (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/WICKET-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Igor Vaynberg resolved WICKET-2469.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 1.5-M1
                   1.4.2
         Assignee: Igor Vaynberg

there is now a new constructor in MultipartServletWebRequest that takes the factory. btw, its not a good idea to create overridable methods that are called from constructors.

> Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class
> --------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-2469
>                 URL: https://issues.apache.org/jira/browse/WICKET-2469
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.4.1
>         Environment: Anyone
>            Reporter: Esteban Masoero
>            Assignee: Igor Vaynberg
>            Priority: Minor
>             Fix For: 1.4.2, 1.5-M1
>
>         Attachments: refactor.diff
>
>
> Hi there:
> In MultipartServletWebRequest constructor we have:
> ...
> (line 93) DiskFileItemFactory factory = new DiskFileItemFactory();
> ...
> which inhibits anyone from reusing MultipartServletWebRequest  with a different factory. The only solution is generate a new class that is a copy of this one, with that line changed.
> The suggestion is to extract this code into a protected method, so we could just extend this class when there's a need to use a different factory (as in GAE applications).  
> A diff file is added.
> Thanks in advance,
> Esteban

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[jira] Commented: (WICKET-2469) Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class

Posted by "Esteban Masoero (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/WICKET-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756040#action_12756040 ] 

Esteban Masoero commented on WICKET-2469:
-----------------------------------------

Thanks a lot Igor. I'm curious, why it's a bad idea to create overridable methods that are called from constructors? Is it because a subclass method could create objects with references to the not-yet-completely created object?

> Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class
> --------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-2469
>                 URL: https://issues.apache.org/jira/browse/WICKET-2469
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.4.1
>         Environment: Anyone
>            Reporter: Esteban Masoero
>            Assignee: Igor Vaynberg
>            Priority: Minor
>             Fix For: 1.4.2, 1.5-M1
>
>         Attachments: refactor.diff
>
>
> Hi there:
> In MultipartServletWebRequest constructor we have:
> ...
> (line 93) DiskFileItemFactory factory = new DiskFileItemFactory();
> ...
> which inhibits anyone from reusing MultipartServletWebRequest  with a different factory. The only solution is generate a new class that is a copy of this one, with that line changed.
> The suggestion is to extract this code into a protected method, so we could just extend this class when there's a need to use a different factory (as in GAE applications).  
> A diff file is added.
> Thanks in advance,
> Esteban

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You can reply to this email to add a comment to the issue online.


[jira] Commented: (WICKET-2469) Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class

Posted by "Igor Vaynberg (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/WICKET-2469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756061#action_12756061 ] 

Igor Vaynberg commented on WICKET-2469:
---------------------------------------

http://www.javapractices.com/topic/TopicAction.do?Id=215

> Allow using a different FileItemFactory by extracting a method in MultipartServletWebRequest class
> --------------------------------------------------------------------------------------------------
>
>                 Key: WICKET-2469
>                 URL: https://issues.apache.org/jira/browse/WICKET-2469
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket
>    Affects Versions: 1.4.1
>         Environment: Anyone
>            Reporter: Esteban Masoero
>            Assignee: Igor Vaynberg
>            Priority: Minor
>             Fix For: 1.4.2, 1.5-M1
>
>         Attachments: refactor.diff
>
>
> Hi there:
> In MultipartServletWebRequest constructor we have:
> ...
> (line 93) DiskFileItemFactory factory = new DiskFileItemFactory();
> ...
> which inhibits anyone from reusing MultipartServletWebRequest  with a different factory. The only solution is generate a new class that is a copy of this one, with that line changed.
> The suggestion is to extract this code into a protected method, so we could just extend this class when there's a need to use a different factory (as in GAE applications).  
> A diff file is added.
> Thanks in advance,
> Esteban

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