[STANBOL-478] Change Metaxa Engine to create PlainText version as ContentPart and change other Engines to retrieve PlainText version from ContentPart

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0-incubating
• Component/s: Enhancer
• Assignee: Walter Kasper
• Reporter: Rupert Westenthaler
• Created: 02/Feb/12 11:11
• Updated: 09/May/12 13:46
• Resolved: 17/Feb/12 11:43

Description

Instead of adding/reading the "text/plain" version of an ContentItem to/from the metadata of the ContentItem the new ContentPart API should be used for that.

This will require the Metaxa Engine to store literal values of all Triples with the ContentItem.getUri() as subject and

http://www.semanticdesktop.org/ontologies/2007/01/19/nie#plainTextContent

as property to a Blob and add this as ContentPart to the ContentItem.

Other EnhancementEngines need than to search for a Blob with the MimeType "text/plain" instead of retrieving the plain text from the metadata.

Issue Links

• is related to: STANBOL-414 Refactor EnhancementEngine to support contents with multiple related parts