[TIKA-1120] Enable direct use of org.apache.tika.mime.MediaType.detect(...)

• Type: Wish
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.3
• Component/s: mime
• Assignee: Unassigned
• Reporter: Oliver Kopp
• Created: 18/May/13 16:12
• Updated: 14/Mar/15 22:19
• Resolved: 14/Mar/15 22:19

Description

When using mime type detection, the classes allow following use:

try (InputStream is = theInputStream;
BufferedInputStream bis = new BufferedInputStream(is)

{ MimeTypes mt = new MimeTypes(); Metadata md = new Metadata(); md.add(Metadata.RESOURCE_NAME_KEY, theFileName); MediaType mediaType = mt.detect(bis, null); return mediaType.toString(); }

When debugging this, the MimeTypes class instantiates its internal patterns with an empty MediaTypeRegistry. Therefore, getDefaultMimeTypes() is never called and thus tika-mimetypes.xml never read.

Is it possible to enable direct usage of MediaType.detect()? Like adding a new constructor, where the MediaTypeRegistry can be set?

If not, the code comments (or the documentation at https://tika.apache.org/0.10/detection.html) should point out that MimeTypes() should not instantiated directly for mime type detection, but the detectors should be used. Possibly, a minimum example should be added to make the usage clear.

Following example works here

try (InputStream is = theInputStream;
BufferedInputStream bis = new BufferedInputStream(is)

{ AutoDetectParser parser = new AutoDetectParser(); Detector detector = parser.getDetector(); Metadata md = new Metadata(); md.add(Metadata.RESOURCE_NAME_KEY, theFileName); MediaType mediaType = detector.detect(bis, md); return mediaType.toString(); }