/**
* Convenience method to create a new {@link Type#result IQ.Type.result} IQ based
* on a {@link Type#get IQ.Type.get} or {@link Type#set IQ.Type.set} IQ. The new
* packet will be initialized with:<ul>
*
* <li>The sender set to the recipient of the originating IQ.
* <li>The recipient set to the sender of the originating IQ.
* <li>The type set to {@link Type#result IQ.Type.result}.
* <li>The id set to the id of the originating IQ.
* </ul>
*
* @param iq the {@link Type#get IQ.Type.get} or {@link Type#set IQ.Type.set} IQ packet.
* @throws IllegalArgumentException if the IQ packet does not have a type of
* {@link Type#get IQ.Type.get} or {@link Type#set IQ.Type.set}.
* @return a new {@link Type#result IQ.Type.result} IQ based on the originating IQ.
*/
public static IQ createResultIQ(IQ iq) {
if (!(iq.getType() == Type.get || iq.getType() == Type.set)) {
throw new ArgumentException(
"IQ must be of type 'set' or 'get'. Original IQ: " + iq.toXML());
}
IQ result = new IQ(Type.result, iq.getID());
result.setFrom(iq.getTo());
result.setTo(iq.getFrom());
return result;
}
