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https://issues.apache.org/jira/browse/DOXIA-614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17152526#comment-17152526
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ASF GitHub Bot commented on DOXIA-614:
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abelsromero commented on pull request #35:
URL: https://github.com/apache/maven-doxia/pull/35#issuecomment-654648699
Applied the suggestions. Anything else that could be improved?
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> Support obtaining the source reference in a Doxia Parser
> --------------------------------------------------------
>
> Key: DOXIA-614
> URL: https://issues.apache.org/jira/browse/DOXIA-614
> Project: Maven Doxia
> Issue Type: Improvement
> Components: Core, Modules, Site Renderer (moved to DOXIASITETOOLS)
> Affects Versions: 1.9.1
> Reporter: Abel Salgado Romero
> Priority: Major
>
> Currently, the 'org.apache.maven.doxia.parser.Parser' interface provides 2
> methods that parsers can implement, one with and the other without the source
> reference. However, in reality the one with the reference added in DOXIA-224
> is never invoked, thus making it unusable from maven-site-plugin.
> Methods are:
> * void parse( Reader source, Sink sink )
> * void parse( Reader source, Sink sink, String reference )
>
> 1. Base implementation 'org.apache.maven.doxia.parser.AbstractParser'
> ('doxia-core') of the reference method calls the other, removing the
> reference if it is provided.
> {code:java}
> public void parse( Reader source, Sink sink, String reference )
> throws ParseException
> {
> parse( source, sink );
> }{code}
> 2. In 'org.apache.maven.doxia.DefaultDoxia#parse' ('doxia-core') the parser
> method 'parser (reader, sink)' is called at the end, which means
> 'parser(reader, sink, reference)' is never used.
>
> {code:java}
> public void parse( Reader source, String parserId, Sink sink )
> throws ParserNotFoundException, ParseException
> {
> Parser parser = parserManager.getParser( parserId );
> parser.enableLogging( new PlexusLoggerWrapper( getLogger() ) );
> parser.parse( source, sink );
> }
> {code}
>
> 3. 'org.apache.maven.doxia.Doxia#parse(Reader source, String parserId, Sink
> sink )' and it's implementation 'DefaultDoxia' ('doxia-core') does not
> receive the source reference, so it cannot pass it in any way.
>
> For these 3 reasons,
> 'org.apache.maven.doxia.siterenderer.DefaultSiteRenderer#renderDocument'
> ('doxia-sitetools') who has the source reference is not able to pass it to
> the above components.
> To sum up, the chaing of calls is: DefaultSiteRenderer -> Doxia/DefaultDoxia
> -> Parser implementation (e.g. AbstractParser)
>
> After discussion with [~hboutemy] the proposal is to fix it in several steps
> to avoid using SNAPSHOTS and ensure no breaking points:
> # Change doxia-core components to support new method with "reference", still
> having both methods. This means, changing AbstractParser and it's
> implementations to recieve the "reference". This does not break anything
> since no one is using this param now.
> # Change doxia-sitetools's 'DefaultSiteRenderer' component to pass the
> reference to Doxia/DefautDoxia DOXIASITETOOLS-225.
> # Release new doxia-sitetools version.
> # Once released, modifty doxia-core components to pass the reference and
> remove the (Reader, Sink) method completely. Also, in advance that Parsers
> may need more information about the source, instead of passing "String
> reference", we will pass a new class "SourceMetadata" that encapsulates the
> "String reference. That way we can add more information in the future if
> needed.
>
>
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