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From "Grzegorz Kossakowski (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (COCOON-2078) Profiling pipelines must not implement Configurable interface as they are already Parameterizable
Date Sat, 07 Jul 2007 09:58:04 GMT

     [ https://issues.apache.org/jira/browse/COCOON-2078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Grzegorz Kossakowski reassigned COCOON-2078:
--------------------------------------------

    Assignee: Grzegorz Kossakowski

> Profiling pipelines must not implement Configurable interface as they are already Parameterizable
> -------------------------------------------------------------------------------------------------
>
>                 Key: COCOON-2078
>                 URL: https://issues.apache.org/jira/browse/COCOON-2078
>             Project: Cocoon
>          Issue Type: Bug
>          Components: Blocks: Profiler
>    Affects Versions: 2.2-dev (Current SVN)
>            Reporter: Alexander Klimetschek
>            Assignee: Grzegorz Kossakowski
>            Priority: Critical
>             Fix For: 2.2-dev (Current SVN)
>
>         Attachments: profiler-config-vs-param-fix.patch
>
>
> The most-recent change to both Profiling pipelines (revision 503964 in February 07) added
the configuration "sax-stream" option and this was done by additionally implementing the Configurable
interface. But as in BaseCachingProcessingPipeline (a base class) the interface Parameterizable
is already implemented, and an Avalon component can be either one or the other [1], this is
a bug. It's critical since the cache is retrieved in BaseCachingProcessingPipeline.parameterize(),
but as Configurable has precedence over Parameterizable [2], the cache will be null and a
NPE will be thrown during generation phase.
> [1] http://excalibur.apache.org/apidocs/org/apache/avalon/framework/parameters/Parameterizable.html
> [2] http://svn.apache.org/viewvc/cocoon/trunk/core/cocoon-sitemap/cocoon-sitemap-impl/src/main/java/org/apache/cocoon/core/container/spring/avalon/AvalonBeanPostProcessor.java?view=markup,
see method postProcessBeforeInitialization()

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