/**
* Returns the cached recent messages history.
*
* @return
* @throws IOException
*/
private History getHistory() throws IOException {
synchronized (historyID) {
HistoryService historyService =
MessageHistoryActivator.getMessageHistoryService().getHistoryService();
if (history == null) {
history = historyService.createHistory(historyID, recordStructure);
// lets check the version if not our version, re-create
// history (delete it)
HistoryReader reader = history.getReader();
boolean delete = false;
QueryResultSet<HistoryRecord> res = reader.findLast(1);
if (res != null && res.hasNext()) {
HistoryRecord hr = res.next();
if (hr.getPropertyValues().length >= 4) {
if (!hr.getPropertyValues()[3].equals(RECENT_MSGS_VER)) delete = true;
} else delete = true;
}
if (delete) {
// delete it
try {
historyService.purgeLocallyStoredHistory(historyID);
history = historyService.createHistory(historyID, recordStructure);
} catch (IOException ex) {
logger.error("Cannot delete recent_messages history", ex);
}
}
}
return history;
}
}
/**
* 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;
}
/** Adds recent message in history. */
private void saveRecentMessageToHistory(ComparableEvtObj msc) {
synchronized (historyID) {
// and create it
try {
History history = getHistory();
HistoryWriter writer = history.getWriter();
SimpleDateFormat sdf = new SimpleDateFormat(HistoryService.DATE_FORMAT);
writer.addRecord(
new String[] {
msc.getProtocolProviderService().getAccountID().getAccountUniqueID(),
msc.getContactAddress(),
sdf.format(msc.getTimestamp()),
RECENT_MSGS_VER
},
NUMBER_OF_MSGS_IN_HISTORY);
} catch (IOException ex) {
logger.error("cannot create recent_messages history", ex);
return;
}
}
}
/** Updates recent message in history. */
private void updateRecentMessageToHistory(final ComparableEvtObj msg) {
synchronized (historyID) {
// and create it
try {
History history = getHistory();
HistoryWriter writer = history.getWriter();
writer.updateRecord(
new HistoryWriter.HistoryRecordUpdater() {
HistoryRecord hr;
@Override
public void setHistoryRecord(HistoryRecord historyRecord) {
this.hr = historyRecord;
}
@Override
public boolean isMatching() {
boolean providerFound = false;
boolean contactFound = false;
for (int i = 0; i < hr.getPropertyNames().length; i++) {
String propName = hr.getPropertyNames()[i];
if (propName.equals(STRUCTURE_NAMES[0])) {
if (msg.getProtocolProviderService()
.getAccountID()
.getAccountUniqueID()
.equals(hr.getPropertyValues()[i])) {
providerFound = true;
}
} else if (propName.equals(STRUCTURE_NAMES[1])) {
if (msg.getContactAddress().equals(hr.getPropertyValues()[i])) {
contactFound = true;
}
}
}
return contactFound && providerFound;
}
@Override
public Map<String, String> getUpdateChanges() {
HashMap<String, String> map = new HashMap<String, String>();
SimpleDateFormat sdf = new SimpleDateFormat(HistoryService.DATE_FORMAT);
for (int i = 0; i < hr.getPropertyNames().length; i++) {
String propName = hr.getPropertyNames()[i];
if (propName.equals(STRUCTURE_NAMES[0])) {
map.put(
propName,
msg.getProtocolProviderService().getAccountID().getAccountUniqueID());
} else if (propName.equals(STRUCTURE_NAMES[1])) {
map.put(propName, msg.getContactAddress());
} else if (propName.equals(STRUCTURE_NAMES[2])) {
map.put(propName, sdf.format(msg.getTimestamp()));
} else if (propName.equals(STRUCTURE_NAMES[3]))
map.put(propName, RECENT_MSGS_VER);
}
return map;
}
});
} catch (IOException ex) {
logger.error("cannot create recent_messages history", ex);
return;
}
}
}