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Posted to dev@tika.apache.org by "Daniel Bonniot de Ruisselet (JIRA)" <ji...@apache.org> on 2013/04/18 13:25:16 UTC

[jira] [Comment Edited] (TIKA-1109) Metadata not extracted before the context in OOXML (pptx)

    [ https://issues.apache.org/jira/browse/TIKA-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13635096#comment-13635096 ] 

Daniel Bonniot de Ruisselet edited comment on TIKA-1109 at 4/18/13 11:24 AM:
-----------------------------------------------------------------------------

Nick, thanks a lot for your answer. I do use the API, and I see the same behaviour: when my ContentHandler is called on the text data, the metadata is not set (yet). It is only set when endDocument is called. Am I doing something wrong?

Looking at:
http://svn.apache.org/viewvc/tika/trunk/tika-parsers/src/main/java/org/apache/tika/parser/microsoft/ooxml/OOXMLExtractorFactory.java?revision=1339390&view=markup

and specifically:

108                 // We need to get the content first, but not end 
109	            //  the document just yet
110	            EndDocumentShieldingContentHandler handler = 
111	               new EndDocumentShieldingContentHandler(baseHandler);
112	            extractor.getXHTML(handler, metadata, context);
113	
114	            // Now we can get the metadata
115	            extractor.getMetadataExtractor().extract(metadata);

It seems to me that metadata is read only after the text, which explains the behaviour. Why is this needed? Am I misunderstanding something?

                
      was (Author: dbr):
    Nick, thanks a lot for your answer. I do use the API, and I see the same behaviour: when my ContentHandler is called on the text data, the metadata is not set (yet). It is only set when endDocument is called. Am I doing something wrong?

Looking at:
http://svn.apache.org/viewvc/tika/trunk/tika-parsers/src/main/java/org/apache/tika/parser/microsoft/ooxml/OOXMLExtractorFactory.java?revision=1339390&view=markup

and specifically:

                  
> Metadata not extracted before the context in OOXML (pptx)
> ---------------------------------------------------------
>
>                 Key: TIKA-1109
>                 URL: https://issues.apache.org/jira/browse/TIKA-1109
>             Project: Tika
>          Issue Type: Bug
>            Reporter: Daniel Bonniot de Ruisselet
>            Priority: Critical
>             Fix For: 1.4
>
>
> It seems that when processing OOXML documents, the metadata is only read after the text. This means it's impossible to use the medata while processing the text. I think it would be more useful to have the metadata populated first.
> As a symptom:
> java -jar tika-app-1.3.jar test-classes/test-documents/testPPT.pptx
> outputs only as metadata:
> <meta name="Content-Length" content="36518"/>
> <meta name="Content-Type" content="application/vnd.openxmlformats-officedocument.presentationml.presentation"/>
> <meta name="resourceName" content="testPPT.pptx"/>
> while there is more medata in the file (e.g. <dc:title>Attachment Test</dc:title>).

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