/**
* Process list of event objects. Checks whether message source contact already exist for this
* event object, if yes just update it with the new values (not sure whether we should do this, as
* it may bring old messages) and if status of provider is changed, init its details, updates its
* capabilities. It still adds the found messages source contact to the list of the new contacts,
* as later we will detect this and fire update event. If nothing found a new contact is created.
*
* @param res list of event
* @param cachedRecentMessages list of newly created source contacts or already existed but
* updated with corresponding event object
* @param isStatusChanged whether provider status changed and we are processing
*/
private void processEventObjects(
Collection<EventObject> res,
List<ComparableEvtObj> cachedRecentMessages,
boolean isStatusChanged) {
for (EventObject obj : res) {
ComparableEvtObj oldMsg = findRecentMessage(obj, recentMessages);
if (oldMsg != null) {
oldMsg.update(obj); // update
if (isStatusChanged && recentQuery != null) recentQuery.updateCapabilities(oldMsg, obj);
// we still add it to cachedRecentMessages
// later we will find it is duplicate and will fire
// update event
if (!cachedRecentMessages.contains(oldMsg)) cachedRecentMessages.add(oldMsg);
continue;
}
oldMsg = findRecentMessage(obj, cachedRecentMessages);
if (oldMsg == null) {
oldMsg = new ComparableEvtObj(obj);
if (isStatusChanged && recentQuery != null) recentQuery.updateCapabilities(oldMsg, obj);
cachedRecentMessages.add(oldMsg);
}
}
}
/**
* Handles new events.
*
* @param obj the event object
* @param provider the provider
* @param id the id of the source of the event
*/
private void handle(EventObject obj, ProtocolProviderService provider, String id) {
// check if provider - contact exist update message content
synchronized (recentMessages) {
ComparableEvtObj existingMsc = null;
for (ComparableEvtObj msc : recentMessages) {
if (msc.getProtocolProviderService().equals(provider)
&& msc.getContactAddress().equals(id)) {
// update
msc.update(obj);
updateRecentMessageToHistory(msc);
existingMsc = msc;
}
}
if (existingMsc != null) {
Collections.sort(recentMessages);
oldestRecentMessage = recentMessages.get(recentMessages.size() - 1).getTimestamp();
if (recentQuery != null) {
recentQuery.updateContact(existingMsc, existingMsc.getEventObject());
recentQuery.fireContactChanged(existingMsc);
}
return;
}
// if missing create source contact
// and update recent messages, trim and sort
MessageSourceContact newSourceContact =
new MessageSourceContact(obj, MessageSourceService.this);
newSourceContact.initDetails(obj);
// we have already checked for duplicate
ComparableEvtObj newMsg = new ComparableEvtObj(obj);
recentMessages.add(newMsg);
Collections.sort(recentMessages);
oldestRecentMessage = recentMessages.get(recentMessages.size() - 1).getTimestamp();
// trim
List<ComparableEvtObj> removedItems = null;
if (recentMessages.size() > numberOfMessages) {
removedItems =
new ArrayList<ComparableEvtObj>(
recentMessages.subList(numberOfMessages, recentMessages.size()));
recentMessages.removeAll(removedItems);
}
// save
saveRecentMessageToHistory(newMsg);
// no query nothing to fire
if (recentQuery == null) return;
// now fire
if (removedItems != null) {
for (ComparableEvtObj msc : removedItems) {
recentQuery.fireContactRemoved(msc);
}
}
recentQuery.addQueryResult(newSourceContact);
}
}