/**
* 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;
}
}
public void testWriteRecordsWithMaxNumber() {
HistoryWriter writer = this.history.getWriter();
HistoryReader reader = this.history.getReader();
try {
for (int i = 0; i < 20; i++) {
writer.addRecord(new String[] {"" + i, "name" + i, i % 2 == 0 ? "m" : "f"}, 20);
synchronized (this) {
try {
wait(100);
} catch (Throwable t) {
}
}
}
QueryResultSet<HistoryRecord> recs = reader.findLast(20);
int count = 0;
while (recs.hasNext()) {
count++;
recs.next();
}
assertEquals("Wrong count of messages", 20, count);
writer.addRecord(new String[] {"" + 21, "name" + 21, "f"}, 20);
recs = reader.findLast(20);
count = 0;
boolean foundFirstMessage = false;
while (recs.hasNext()) {
count++;
HistoryRecord hr = recs.next();
if (hr.getPropertyValues()[0].equals("0")) foundFirstMessage = true;
}
assertEquals("Wrong count of messages", 20, count);
assertFalse("Wrong message removed, must be the first one", foundFirstMessage);
} catch (Exception e) {
e.printStackTrace();
fail("Could not write records. Reason: " + e);
}
}
public void testReadRecords() {
HistoryReader reader = this.history.getReader();
QueryResultSet<HistoryRecord> result = reader.findByKeyword("name2", "name");
assertTrue("Nothing found", result.hasNext());
while (result.hasNext()) {
HistoryRecord record = result.nextRecord();
String[] vals = record.getPropertyValues();
try {
int n = Integer.parseInt(vals[1].substring(4));
assertEquals(3, vals.length);
assertEquals(n % 2 == 0 ? "m" : "f", vals[2]);
} catch (Exception e) {
fail("Bad data! Expected nameXXXX, where XXXX is " + "an integer, but found: " + vals[0]);
}
}
}
/**
* 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;
}