/**
* Searches for contact ids in history of recent messages.
*
* @param provider
* @param after
* @return
*/
List<String> getRecentContactIDs(String provider, Date after) {
List<String> res = new ArrayList<String>();
try {
History history = getHistory();
if (history != null) {
Iterator<HistoryRecord> recs = history.getReader().findLast(NUMBER_OF_MSGS_IN_HISTORY);
SimpleDateFormat sdf = new SimpleDateFormat(HistoryService.DATE_FORMAT);
while (recs.hasNext()) {
HistoryRecord hr = recs.next();
String contact = null;
String recordProvider = null;
Date timestamp = null;
for (int i = 0; i < hr.getPropertyNames().length; i++) {
String propName = hr.getPropertyNames()[i];
if (propName.equals(STRUCTURE_NAMES[0])) recordProvider = hr.getPropertyValues()[i];
else if (propName.equals(STRUCTURE_NAMES[1])) contact = hr.getPropertyValues()[i];
else if (propName.equals(STRUCTURE_NAMES[2])) {
try {
timestamp = sdf.parse(hr.getPropertyValues()[i]);
} catch (ParseException e) {
timestamp = new Date(Long.parseLong(hr.getPropertyValues()[i]));
}
}
}
if (recordProvider == null || contact == null) continue;
if (after != null && timestamp != null && timestamp.before(after)) continue;
if (recordProvider.equals(provider)) res.add(contact);
}
}
} catch (IOException ex) {
logger.error("cannot create recent_messages history", ex);
}
return res;
}
/**
* Disables/Enables history arrow buttons depending on whether the current page is the first, the
* last page or a middle page.
*
* @param chatPanel the <tt>ChatPanel</tt> which has provoked the change.
*/
public void changeHistoryButtonsState(ChatPanel chatPanel) {
ChatConversationPanel convPanel = chatPanel.getChatConversationPanel();
long firstMsgInHistory = chatPanel.getFirstHistoryMsgTimestamp().getTime();
long lastMsgInHistory = chatPanel.getLastHistoryMsgTimestamp().getTime();
Date firstMsgInPage = convPanel.getPageFirstMsgTimestamp();
Date lastMsgInPage = convPanel.getPageLastMsgTimestamp();
if (firstMsgInHistory == 0 || lastMsgInHistory == 0) {
previousButton.setEnabled(false);
nextButton.setEnabled(false);
return;
}
previousButton.setEnabled(firstMsgInHistory < firstMsgInPage.getTime());
nextButton.setEnabled(
(lastMsgInPage.getTime() > 0) && (lastMsgInHistory > lastMsgInPage.getTime()));
}