Interface/enum listing standard mime-type constants

Question

I am looking among the standard libraries (like apache commons, jax, jboss, javax) for an interface or enum that lists the values of all the standard mime-type (aka content-

Answer 1

If you're on android you have multiple choices, where only the first is a kind of "enum":

• HTTP (which has been deprecated in API 22), for example
  HTTP.PLAIN_TEXT_TYPE or
• MimeTypeMap, for example
  final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
  See also FileProvider.getType().
• URLConnection that provides the following methods:
  • guessContentTypeFromStream(InputStream is)
  • guessContentTypeFromName(String url)
  • getFileNameMap()

For example

@Override
public String getType(Uri uri) {
    return URLConnection.getFileNameMap().getContentTypeFor(
            uri.getLastPathSegment());
}