/**
* Updates the contact sources in the recent query if any. Done here in order to sync with
* recentMessages instance, and to check for already existing instances of contact sources.
* Normally called from the query.
*/
public void updateRecentMessages() {
if (recentQuery == null) return;
synchronized (recentMessages) {
List<SourceContact> currentContactsInQuery = recentQuery.getQueryResults();
for (ComparableEvtObj evtObj : recentMessages) {
// the contains will use the correct equals method of
// the object evtObj
if (!currentContactsInQuery.contains(evtObj)) {
MessageSourceContact newSourceContact =
new MessageSourceContact(evtObj.getEventObject(), MessageSourceService.this);
newSourceContact.initDetails(evtObj.getEventObject());
recentQuery.addQueryResult(newSourceContact);
}
}
}
}
/**
* Checks if equals, and if this event object is used to create a MessageSourceContact, if the
* supplied <tt>Object</tt> is instance of MessageSourceContact.
*
* @param o the object to check.
* @return <tt>true</tt> if equals.
*/
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || (!(o instanceof MessageSourceContact) && getClass() != o.getClass()))
return false;
if (o instanceof ComparableEvtObj) {
ComparableEvtObj that = (ComparableEvtObj) o;
if (!address.equals(that.address)) return false;
if (!ppService.equals(that.ppService)) return false;
} else if (o instanceof MessageSourceContact) {
MessageSourceContact that = (MessageSourceContact) o;
if (!address.equals(that.getContactAddress())) return false;
if (!ppService.equals(that.getProtocolProviderService())) return false;
} else return false;
return true;
}
/**
* 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);
}
}
/**
* Add the ComparableEvtObj, newly added will fire new, for existing fire update and when trimming
* the list to desired length fire remove for those that were removed
*
* @param contactsToAdd
*/
private void addNewRecentMessages(List<ComparableEvtObj> contactsToAdd) {
// now find object to fire new, and object to fire remove
// let us find duplicates and fire update
List<ComparableEvtObj> duplicates = new ArrayList<ComparableEvtObj>();
for (ComparableEvtObj msgToAdd : contactsToAdd) {
if (recentMessages.contains(msgToAdd)) {
duplicates.add(msgToAdd);
// save update
updateRecentMessageToHistory(msgToAdd);
}
}
recentMessages.removeAll(duplicates);
// now contacts to add has no duplicates, add them all
boolean changed = recentMessages.addAll(contactsToAdd);
if (changed) {
Collections.sort(recentMessages);
if (recentQuery != null) {
for (ComparableEvtObj obj : duplicates)
recentQuery.updateContact(obj, obj.getEventObject());
}
}
if (!recentMessages.isEmpty())
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);
}
if (recentQuery != null) {
// now fire, removed for all that were in the list
// and now are removed after trim
if (removedItems != null) {
for (ComparableEvtObj msc : removedItems) {
if (!contactsToAdd.contains(msc)) recentQuery.fireContactRemoved(msc);
}
}
// fire new for all that were added, and not removed after trim
for (ComparableEvtObj msc : contactsToAdd) {
if ((removedItems == null || !removedItems.contains(msc)) && !duplicates.contains(msc)) {
MessageSourceContact newSourceContact =
new MessageSourceContact(msc.getEventObject(), MessageSourceService.this);
newSourceContact.initDetails(msc.getEventObject());
recentQuery.addQueryResult(newSourceContact);
}
}
// if recent messages were changed, indexes have change lets
// fire event for the last element which will reorder the whole
// group if needed.
if (changed) recentQuery.fireContactChanged(recentMessages.get(recentMessages.size() - 1));
}
}