public void testLimeDHTManager() throws Exception {
DHTSettings.PERSIST_ACTIVE_DHT_ROUTETABLE.setValue(true);
DHTSettings.PERSIST_DHT_DATABASE.setValue(true);
TestExecutor executor = new TestExecutor();
DHTManagerImpl manager = new DHTManagerImpl(executor, dhtControllerFactory);
try {
assertFalse(manager.isRunning());
assertFalse(manager.isBootstrapped());
assertFalse(manager.isWaitingForNodes());
assertEquals(0, manager.getActiveDHTNodes(10).size());
manager.start(DHTMode.ACTIVE);
assertEquals(1, executor.getRunners().size());
Thread.sleep(200);
assertTrue(manager.isRunning());
assertEquals(DHTMode.ACTIVE, manager.getDHTMode());
KUID activeLocalNodeID = manager.getMojitoDHT().getLocalNodeID();
// Rry starting again
manager.start(DHTMode.ACTIVE);
Thread.sleep(200);
assertEquals(activeLocalNodeID, manager.getMojitoDHT().getLocalNodeID());
// Try switching mode
manager.start(DHTMode.PASSIVE);
Thread.sleep(200);
assertEquals(DHTMode.PASSIVE, manager.getDHTMode());
assertTrue(manager.isRunning());
KUID passiveLocalNodeID = manager.getMojitoDHT().getLocalNodeID();
assertNotEquals(activeLocalNodeID, passiveLocalNodeID);
manager.start(DHTMode.PASSIVE);
Thread.sleep(200);
assertEquals(passiveLocalNodeID, manager.getMojitoDHT().getLocalNodeID());
manager.addressChanged();
Thread.sleep(200);
assertEquals(passiveLocalNodeID, manager.getMojitoDHT().getLocalNodeID());
// Try switching multiple times (does some Disk I/O)
manager.start(DHTMode.ACTIVE);
manager.start(DHTMode.PASSIVE);
manager.start(DHTMode.ACTIVE);
// Give it enough time --> previous starts were offloaded to threadpool
Thread.sleep(10000);
// We should be in active mode
assertEquals(DHTMode.ACTIVE, manager.getDHTMode());
// The Node ID should be something else than passiveLocalNodeID
assertNotEquals(passiveLocalNodeID, manager.getMojitoDHT().getLocalNodeID());
// The Node ID should be (but it's not guaranteed) equals to activeLocalNodeID
assertEquals(activeLocalNodeID, manager.getMojitoDHT().getLocalNodeID());
} finally {
manager.stop();
}
}
public void testStopStartLimeDHTManager() throws Exception {
TestExecutor executor = new TestExecutor();
DHTManagerImpl manager = new DHTManagerImpl(executor, dhtControllerFactory);
try {
manager.start(DHTMode.ACTIVE);
manager.stop();
Thread.sleep(200);
assertFalse(manager.isRunning());
manager.start(DHTMode.ACTIVE);
Thread.sleep(200);
assertTrue(manager.isRunning());
assertEquals(DHTMode.ACTIVE, manager.getDHTMode());
manager.start(DHTMode.PASSIVE);
Thread.sleep(200);
assertEquals(DHTMode.PASSIVE, manager.getDHTMode());
assertTrue(manager.isRunning());
manager.start(DHTMode.ACTIVE);
manager.start(DHTMode.PASSIVE);
manager.start(DHTMode.ACTIVE);
manager.stop();
assertFalse(manager.isRunning());
Thread.sleep(500);
assertFalse(manager.isRunning());
} finally {
manager.stop();
}
}
