/** Entity Capabilities */
public void setEntityCapsManager(EntityCapsManager manager) {
capsManager = manager;
if (connection.getCapsNode() != null && connection.getHost() != null) {
capsManager.addUserCapsNode(connection.getHost(), connection.getCapsNode());
}
capsManager.addPacketListener(connection);
}
/**
* Perform a ServiceDiscovery [1] and check if the given resource is among the features supported
* by the given recipient.
*
* <p>[1] XEP-0030 http://xmpp.org/extensions/xep-0030.html
*
* @param jid The JID must have a resource identifier (user@host/resource), otherwise you get a
* blame StackTrace in your logs.
* @return DiscoverInfo from recipient or null if an XMPPException was thrown.
* @blocking This method blocks until the ServiceDiscovery returns.
* @reentrant This method can be called concurrently.
* @nonCaching This method does not use a cache, but queries the server directly.
*/
private DiscoverInfo performServiceDiscovery(final JID jid) {
if (jid.isBareJID()) {
LOG.warn(
"cannot perform service discovery on a non resource qualified jid: " + jid.toString(),
new StackTrace());
return null;
}
final Connection connection = connectionService.getConnection();
if (connection == null) {
LOG.warn("cannot not perform a service discovery because not connected to a XMPP server");
return null;
}
ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
try {
return sdm.discoverInfo(jid.toString());
} catch (XMPPException e) {
LOG.warn(
"Service Discovery failed on recipient "
+ jid.toString()
+ " server: "
+ connection.getHost(),
e);
/*
* FIXME handle timeouts and error conditions differently ! see
* http://xmpp.org/extensions/xep-0030.html#errors
*/
return null;
}
}
