/**
* Returns existing chat rooms for the given <tt>chatRoomProvider</tt>.
*
* @param chatRoomProvider the <tt>ChatRoomProviderWrapper</tt>, which chat rooms we're looking
* for
* @return existing chat rooms for the given <tt>chatRoomProvider</tt>
*/
public List<String> getExistingChatRooms(ChatRoomProviderWrapper chatRoomProvider) {
if (chatRoomProvider == null) return null;
ProtocolProviderService protocolProvider = chatRoomProvider.getProtocolProvider();
if (protocolProvider == null) return null;
OperationSetMultiUserChat groupChatOpSet =
protocolProvider.getOperationSet(OperationSetMultiUserChat.class);
if (groupChatOpSet == null) return null;
List<String> chatRooms = null;
try {
chatRooms = groupChatOpSet.getExistingChatRooms();
} catch (OperationFailedException e) {
if (logger.isTraceEnabled())
logger.trace(
"Failed to obtain existing chat rooms for server: "
+ protocolProvider.getAccountID().getService(),
e);
} catch (OperationNotSupportedException e) {
if (logger.isTraceEnabled())
logger.trace(
"Failed to obtain existing chat rooms for server: "
+ protocolProvider.getAccountID().getService(),
e);
}
return chatRooms;
}
