[dna-issues] [JBoss JIRA] Updated: (DNA-26) Extract EXIF metadata from JPEG files

Extract EXIF metadata from JPEG files ------------------------------------- Key: DNA-26 URL: http://jira.jboss.com/jira/browse/DNA-26 Project: DNA Issue Type: Feature Request Components: Sequencers Reporter: Randall Hauch Priority: Optional Fix For: Future Releases The image sequencer extracts basic metadata from PNG, BMP, JPEG, GIF and other image files. Enhance this sequencer to extract EXIF metadata for JPEG files. Drew Noake's metadata extractor (http://www.drewnoakes.com/code/exif/index.html) seems to be a widely used library for extracting EXIF metadata, and has support for a number of cameras. This library does not appear to be in a any of the Maven 2 repositories, and Drew does not specify the Maven coordinates. The package structure is "com.drew.*", but Aduna has it in its Maven 2 repository (http://repository.aduna-software.org/maven2/com/drewnoakes/metadata-extra...) under "com.drewnoakes" (which is Drew's domain). The EXIF metadata is organized as tags under directories. See a sample output of EXIF metadata at http://www.drewnoakes.com/code/exif/sampleOutput.html. This could be mapped to JCR by having a child node (of type "exif:directory") named for each directory (e.g., "EXIF"). Should the tags be stored as properties on each directory node (not a great mapping from the tag names to property names, and not really very extensible but probably easier to use), or as child nodes (of type "exit:tag" ?) with properties for the tag name, hex value, and description (value)?