parsing/setting content of error conditions (e.g. redirect)

Some error conditions (redirect, gone, etc.) contain a text node with information, in the case of redirect it is typically the IRI of the entity that is redirected to.

Example:

C: <presence
  from='juliet@im.example.com/balcony'
  id='y2bs71v4'
  to='characters@muc.example.com/JulieC'>
  <x xmlns='http://jabber.org/protocol/muc'/>
  </presence>
 
 
E: <presence
  from='characters@muc.example.com/JulieC'
  id='y2bs71v4'
  to='juliet@im.example.com/balcony'
  type='error'>
  <error type='modify'>
  <redirect xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>
  xmpp:characters@conference.example.org
  </redirect>
  </error>
  </presence>
               

See also: Extensible Messaging and Presence Protocol (XMPP): Core

Smack currently does not parse the text content and  offers no way to set it.

This would only require these minor changes:

• addition of parser code for text node of some error types in PacketParserUtils.parseError
• extension of XMPPError to allow access to the content
• extension of XMPPError.toXML() to include it in the serialization