Examples with UPDATE org.apache.ignite.cdc.AbstractCdcTest.ChangeEventType.UPDATE used on opensource projects

Example 1 with UPDATE

use of org.apache.ignite.cdc.AbstractCdcTest.ChangeEventType.UPDATE in project ignite by apache.

the class CdcSelfTest method testReReadWhenStateWasNotStored.

/**
 */
@Test
public void testReReadWhenStateWasNotStored() throws Exception {
    IgniteEx ign = startGrid(getConfiguration("ignite-0"));
    ign.cluster().state(ACTIVE);
    IgniteCache<Integer, User> cache = ign.getOrCreateCache(DEFAULT_CACHE_NAME);
    addData(cache, 0, KEYS_CNT);
    for (int i = 0; i < 3; i++) {
        UserCdcConsumer cnsmr = new UserCdcConsumer() {

            @Override
            protected boolean commit() {
                return false;
            }
        };
        CdcMain cdc = createCdc(cnsmr, getConfiguration(ign.name()));
        IgniteInternalFuture<?> fut = runAsync(cdc);
        waitForSize(KEYS_CNT, DEFAULT_CACHE_NAME, UPDATE, cnsmr);
        checkMetrics(cdc, KEYS_CNT);
        fut.cancel();
        assertTrue(cnsmr.stopped());
    }
    AtomicBoolean consumeHalf = new AtomicBoolean(true);
    AtomicBoolean halfCommitted = new AtomicBoolean(false);
    int half = KEYS_CNT / 2;
    UserCdcConsumer cnsmr = new UserCdcConsumer() {

        @Override
        public boolean onEvents(Iterator<CdcEvent> evts) {
            if (consumeHalf.get() && F.size(data(UPDATE, cacheId(DEFAULT_CACHE_NAME))) == half) {
                // This means that state committed as a result of the previous call.
                halfCommitted.set(true);
                return false;
            }
            while (evts.hasNext()) {
                CdcEvent evt = evts.next();
                if (!evt.primary())
                    continue;
                data.computeIfAbsent(F.t(evt.value() == null ? DELETE : UPDATE, evt.cacheId()), k -> new ArrayList<>()).add((Integer) evt.key());
                if (consumeHalf.get())
                    return F.size(data(UPDATE, cacheId(DEFAULT_CACHE_NAME))) == half;
            }
            return true;
        }
    };
    CdcMain cdc = createCdc(cnsmr, getConfiguration(ign.name()));
    IgniteInternalFuture<?> fut = runAsync(cdc);
    waitForSize(half, DEFAULT_CACHE_NAME, UPDATE, cnsmr);
    checkMetrics(cdc, half);
    waitForCondition(halfCommitted::get, getTestTimeout());
    fut.cancel();
    assertTrue(cnsmr.stopped());
    removeData(cache, 0, KEYS_CNT);
    consumeHalf.set(false);
    cdc = createCdc(cnsmr, getConfiguration(ign.name()));
    fut = runAsync(cdc);
    waitForSize(KEYS_CNT, DEFAULT_CACHE_NAME, UPDATE, cnsmr);
    waitForSize(KEYS_CNT, DEFAULT_CACHE_NAME, DELETE, cnsmr);
    checkMetrics(cdc, KEYS_CNT * 2 - half);
    fut.cancel();
    assertTrue(cnsmr.stopped());
}