@Test
public void testBaseMetaChange() throws Exception {
startEngine();
m_curator
.setData()
.forPath(ZKPathUtils.getBaseMetaVersionZkPath(), ZKSerializeUtils.serialize(100L));
int retries = 50;
int i = 0;
while (m_baseMetaChangeCount.get() != 1 && i++ < retries) {
TimeUnit.MILLISECONDS.sleep(100);
}
assertEquals(1, m_baseMetaChangeCount.get());
m_curator
.setData()
.forPath(ZKPathUtils.getBaseMetaVersionZkPath(), ZKSerializeUtils.serialize(200L));
i = 0;
while (m_baseMetaChangeCount.get() != 2 && i++ < retries) {
TimeUnit.MILLISECONDS.sleep(100);
}
assertEquals(2, m_baseMetaChangeCount.get());
}
@Override
protected void doSetUp() throws Exception {
m_baseMetaChangeCount.set(0);
defineComponent(
EventHandler.class, "BaseMetaChangedEventHandler", TestBaseMetaChangedEventHandler.class);
defineComponent(
EventHandler.class,
"MetaServerListChangedEventHandler",
TestMetaServerListChangedEventHandler.class);
LeaderInitEventHandler leaderInitEventHandler =
(LeaderInitEventHandler) lookup(EventHandler.class, "LeaderInitEventHandler");
leaderInitEventHandler.setMetaService(m_metaService);
leaderInitEventHandler.setMetaServerAssignmentHolder(m_metaServerAssignmentHolder);
leaderInitEventHandler.setMetaHolder(m_metaHolder);
leaderInitEventHandler.setBrokerAssignmentHolder(m_brokerAssignmentHolder);
when(m_metaService.getMetaEntity()).thenReturn(TestHelper.loadLocalMeta(this));
m_curator
.setData()
.forPath(ZKPathUtils.getBaseMetaVersionZkPath(), ZKSerializeUtils.serialize(1L));
leaderInitEventHandler.initialize();
m_eventBus = lookup(EventBus.class);
}
@Override
protected void initZkData() throws Exception {
ensurePath("/brokers");
ensurePath(ZKPathUtils.getMetaInfoZkPath());
ensurePath(ZKPathUtils.getMetaServersZkPath());
ensurePath(ZKPathUtils.getMetaServerAssignmentRootZkPath());
ensurePath(ZKPathUtils.getBaseMetaVersionZkPath());
ensurePath(ZKPathUtils.getBrokerLeaseRootZkPath());
ensurePath(ZKPathUtils.getConsumerLeaseRootZkPath());
}