This issue has also already been discussed in the Tika issue queue:
"Add method get file extension from MimeTypes"
https://issues.apache.org/jira/browse/TIKA-538
And
http://svn.apache.org/repos/asf/tika/trunk/tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml
does support DITA X
Looks like this has been solved recently in the current dev branch:
"SimplePostTool (and thus bin/post) cannot index files with unknown
extensions"
https://issues.apache.org/jira/browse/SOLR-7546
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http://lucene.472066.n3.nabble.com/file-index-format-tp4199892p42
Hi,
I face the same problem when trying to index DITA XML files. These are XML
files but have the file extension .dita which Solr ignores.
According to java -jar post.jar -h only the following file extensions are
supported:
/-Dfiletypes=[,,...]
(default=xml,json,csv,pdf,doc,docx,ppt,pptx,xls
