/** 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);
}
/**
* Returns the discovered information of a given XMPP entity addressed by its JID.
*
* @param entityID the address of the XMPP entity.
* @return the discovered information.
* @throws XMPPException if the operation failed for some reason.
*/
public DiscoverInfo discoverInfo(String entityID) throws XMPPException {
// Check if the have it cached in the Entity Capabilities Manager
DiscoverInfo info = discoverInfoByCaps(entityID);
if (info != null) {
return info;
} else {
// If the caps node is known, use it in the request.
String node = null;
if (capsManager != null) {
// Get the newest node#version
node = capsManager.getNodeVersionByUser(entityID);
}
// Check if we cached DiscoverInfo for nonCaps entity
if (cacheNonCaps && node == null && nonCapsCache.containsKey(entityID)) {
return nonCapsCache.get(entityID);
}
// Discover by requesting from the remote client
info = discoverInfo(entityID, node);
// If the node version is known, store the new entry.
if (node != null && capsManager != null) {
EntityCapsManager.addDiscoverInfoByNode(node, info);
}
// If this is a non caps entity store the discover in nonCapsCache map
else if (cacheNonCaps && node == null) {
nonCapsCache.put(entityID, info);
}
return info;
}
}
private String getEntityCapsVersion() {
if (capsManager != null) {
return capsManager.getCapsVersion();
} else {
return null;
}
}
/**
* Get a DiscoverInfo for the current entity caps node.
*
* @return a DiscoverInfo for the current entity caps node
*/
public DiscoverInfo getOwnDiscoverInfo() {
DiscoverInfo di = new DiscoverInfo();
di.setType(IQ.Type.RESULT);
di.setNode(capsManager.getNode() + "#" + getEntityCapsVersion());
// Add discover info
addDiscoverInfoTo(di);
return di;
}
private void renewEntityCapsVersion() {
// If a XMPPConnection is the managed one, see that the new
// version is updated
if (connection instanceof XMPPConnection) {
if (capsManager != null) {
capsManager.calculateEntityCapsVersion(
getOwnDiscoverInfo(), identityType, identityName, features, extendedInfo);
// capsManager.notifyCapsVerListeners();
}
}
}
/**
* Returns the discovered information of a given XMPP entity addressed by its JID if it's known by
* the entity caps manager.
*
* @param entityID the address of the XMPP entity
* @return the disovered info or null if no such info is available from the entity caps manager.
* @throws XMPPException if the operation failed for some reason.
*/
public DiscoverInfo discoverInfoByCaps(String entityID) throws XMPPException {
DiscoverInfo info = capsManager.getDiscoverInfoByUser(entityID);
if (info != null) {
DiscoverInfo newInfo = cloneDiscoverInfo(info);
newInfo.setFrom(entityID);
return newInfo;
} else {
return null;
}
}
/**
* Creates a new ServiceDiscoveryManager for a given connection. This means that the service
* manager will respond to any service discovery request that the connection may receive.
*
* @param connection the connection to which a ServiceDiscoveryManager is going to be created.
*/
public ServiceDiscoveryManager(Connection connection) {
this.connection = connection;
// For every XMPPConnection, add one EntityCapsManager.
if (connection instanceof XMPPConnection) {
setEntityCapsManager(new EntityCapsManager());
capsManager.addCapsVerListener(new CapsPresenceRenewer());
}
renewEntityCapsVersion();
init();
}
