/**
* Test the feature of clearing a JEReplicaDB used by a replication server. The clear feature is
* used when a replication server receives a request to reset the generationId of a given domain.
*/
@Test
public void testClear() throws Exception {
ReplicationServer replicationServer = null;
JEReplicaDB replicaDB = null;
try {
TestCaseUtils.startServer();
replicationServer = configureReplicationServer(100, 5000);
replicaDB = newReplicaDB(replicationServer);
CSN[] csns = generateCSNs(1, 0, 3);
// Add the changes and check they are here
replicaDB.add(new DeleteMsg(TEST_ROOT_DN, csns[0], "uid"));
replicaDB.add(new DeleteMsg(TEST_ROOT_DN, csns[1], "uid"));
replicaDB.add(new DeleteMsg(TEST_ROOT_DN, csns[2], "uid"));
assertEquals(csns[0], replicaDB.getOldestCSN());
assertEquals(csns[2], replicaDB.getNewestCSN());
// Clear DB and check it is cleared.
replicaDB.clear();
assertEquals(null, replicaDB.getOldestCSN());
assertEquals(null, replicaDB.getNewestCSN());
} finally {
shutdown(replicaDB);
remove(replicationServer);
}
}
private void testGetOldestNewestCSNs(final int max, final int counterWindow) throws Exception {
String tn = "testDBCount(" + max + "," + counterWindow + ")";
debugInfo(tn, "Starting test");
File testRoot = null;
ReplicationServer replicationServer = null;
ReplicationDbEnv dbEnv = null;
JEReplicaDB replicaDB = null;
try {
TestCaseUtils.startServer();
replicationServer = configureReplicationServer(100000, 10);
testRoot = createCleanDir();
dbEnv = new ReplicationDbEnv(testRoot.getPath(), replicationServer);
replicaDB = new JEReplicaDB(1, TEST_ROOT_DN, replicationServer, dbEnv);
replicaDB.setCounterRecordWindowSize(counterWindow);
// Populate the db with 'max' msg
int mySeqnum = 1;
CSN csns[] = new CSN[2 * (max + 1)];
long now = System.currentTimeMillis();
for (int i = 1; i <= max; i++) {
csns[i] = new CSN(now + i, mySeqnum, 1);
replicaDB.add(new DeleteMsg(TEST_ROOT_DN, csns[i], "uid"));
mySeqnum += 2;
}
assertEquals(replicaDB.getOldestCSN(), csns[1], "Wrong oldest CSN");
assertEquals(replicaDB.getNewestCSN(), csns[max], "Wrong newest CSN");
// Now we want to test that after closing and reopening the db, the
// counting algo is well reinitialized and when new messages are added
// the new counter are correctly generated.
debugInfo(tn, "SHUTDOWN replicaDB and recreate");
replicaDB.shutdown();
replicaDB = new JEReplicaDB(1, TEST_ROOT_DN, replicationServer, dbEnv);
replicaDB.setCounterRecordWindowSize(counterWindow);
assertEquals(replicaDB.getOldestCSN(), csns[1], "Wrong oldest CSN");
assertEquals(replicaDB.getNewestCSN(), csns[max], "Wrong newest CSN");
// Populate the db with 'max' msg
for (int i = max + 1; i <= 2 * max; i++) {
csns[i] = new CSN(now + i, mySeqnum, 1);
replicaDB.add(new DeleteMsg(TEST_ROOT_DN, csns[i], "uid"));
mySeqnum += 2;
}
assertEquals(replicaDB.getOldestCSN(), csns[1], "Wrong oldest CSN");
assertEquals(replicaDB.getNewestCSN(), csns[2 * max], "Wrong newest CSN");
replicaDB.purgeUpTo(new CSN(Long.MAX_VALUE, 0, 0));
String testcase = "AFTER PURGE (oldest, newest)=";
debugInfo(tn, testcase + replicaDB.getOldestCSN() + replicaDB.getNewestCSN());
assertEquals(replicaDB.getNewestCSN(), csns[2 * max], "Newest=");
// Clear ...
debugInfo(tn, "clear:");
replicaDB.clear();
// Check the db is cleared.
assertEquals(null, replicaDB.getOldestCSN());
assertEquals(null, replicaDB.getNewestCSN());
debugInfo(tn, "Success");
} finally {
shutdown(replicaDB);
if (dbEnv != null) {
dbEnv.shutdown();
}
remove(replicationServer);
TestCaseUtils.deleteDirectory(testRoot);
}
}