Examples with QueryCursor org.apache.ignite.cache.query.QueryCursor used on opensource projects

Example 1 with QueryCursor

use of org.apache.ignite.cache.query.QueryCursor in project ignite by apache.

the class CacheContinuousQueryConcurrentPartitionUpdateTest method concurrentUpdatesAndQueryStart.

/**
     * @param atomicityMode Cache atomicity mode.
     * @throws Exception If failed.
     */
private void concurrentUpdatesAndQueryStart(CacheAtomicityMode atomicityMode) throws Exception {
    Ignite srv = startGrid(0);
    client = true;
    Ignite client = startGrid(1);
    CacheConfiguration ccfg = new CacheConfiguration(DEFAULT_CACHE_NAME);
    ccfg.setWriteSynchronizationMode(FULL_SYNC);
    ccfg.setAtomicityMode(atomicityMode);
    IgniteCache clientCache = client.createCache(ccfg);
    Affinity<Integer> aff = srv.affinity(DEFAULT_CACHE_NAME);
    final List<Integer> keys = new ArrayList<>();
    final int KEYS = 10;
    for (int i = 0; i < 100_000; i++) {
        if (aff.partition(i) == 0) {
            keys.add(i);
            if (keys.size() == KEYS)
                break;
        }
    }
    assertEquals(KEYS, keys.size());
    final int THREADS = 10;
    final int UPDATES = 1000;
    for (int i = 0; i < 5; i++) {
        log.info("Iteration: " + i);
        ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
        final AtomicInteger evtCnt = new AtomicInteger();
        qry.setLocalListener(new CacheEntryUpdatedListener<Object, Object>() {

            @Override
            public void onUpdated(Iterable<CacheEntryEvent<?, ?>> evts) {
                for (CacheEntryEvent evt : evts) {
                    assertNotNull(evt.getKey());
                    assertNotNull(evt.getValue());
                    if ((Integer) evt.getValue() >= 0)
                        evtCnt.incrementAndGet();
                }
            }
        });
        QueryCursor cur;
        final IgniteCache<Object, Object> srvCache = srv.cache(DEFAULT_CACHE_NAME);
        final AtomicBoolean stop = new AtomicBoolean();
        try {
            IgniteInternalFuture fut = GridTestUtils.runMultiThreadedAsync(new Callable<Void>() {

                @Override
                public Void call() throws Exception {
                    ThreadLocalRandom rnd = ThreadLocalRandom.current();
                    while (!stop.get()) srvCache.put(keys.get(rnd.nextInt(KEYS)), rnd.nextInt(100) - 200);
                    return null;
                }
            }, THREADS, "update");
            U.sleep(1000);
            cur = clientCache.query(qry);
            U.sleep(1000);
            stop.set(true);
            fut.get();
        } finally {
            stop.set(true);
        }
        GridTestUtils.runMultiThreadedAsync(new Callable<Void>() {

            @Override
            public Void call() throws Exception {
                ThreadLocalRandom rnd = ThreadLocalRandom.current();
                for (int i = 0; i < UPDATES; i++) srvCache.put(keys.get(rnd.nextInt(KEYS)), i);
                return null;
            }
        }, THREADS, "update");
        GridTestUtils.waitForCondition(new GridAbsPredicate() {

            @Override
            public boolean apply() {
                log.info("Events: " + evtCnt.get());
                return evtCnt.get() >= THREADS * UPDATES;
            }
        }, 5000);
        assertEquals(THREADS * UPDATES, evtCnt.get());
        cur.close();
    }
}

Example 2 with QueryCursor

use of org.apache.ignite.cache.query.QueryCursor in project ignite by apache.

the class IgniteRepositoryQuery method execute.

/**
 * {@inheritDoc}
 */
@Override
public Object execute(Object[] prmtrs) {
    Query qry = prepareQuery(prmtrs);
    QueryCursor qryCursor = cache.query(qry);
    return transformQueryCursor(prmtrs, qryCursor);
}

Example 3 with QueryCursor

use of org.apache.ignite.cache.query.QueryCursor in project ignite by apache.

the class JmxExporterSpiTest method testContinuousQuery.

/**
 */
@Test
public void testContinuousQuery() throws Exception {
    try (IgniteEx remoteNode = startGrid(1)) {
        IgniteCache<Integer, Integer> cache = ignite.createCache("cache-1");
        assertEquals(0, systemView(CQ_SYS_VIEW).size());
        assertEquals(0, systemView(remoteNode, CQ_SYS_VIEW).size());
        try (QueryCursor qry = cache.query(new ContinuousQuery<>().setInitialQuery(new ScanQuery<>()).setPageSize(100).setTimeInterval(1000).setLocalListener(evts -> {
        // No-op.
        }).setRemoteFilterFactory(() -> evt -> true))) {
            for (int i = 0; i < 100; i++) cache.put(i, i);
            checkContinuousQueryView(ignite, ignite);
            checkContinuousQueryView(ignite, remoteNode);
        }
        assertEquals(0, systemView(CQ_SYS_VIEW).size());
        assertTrue(waitForCondition(() -> systemView(remoteNode, CQ_SYS_VIEW).isEmpty(), getTestTimeout()));
    }
}

Example 4 with QueryCursor

use of org.apache.ignite.cache.query.QueryCursor in project ignite by apache.

the class SystemViewSelfTest method testContinuousQuery.

/**
 */
@Test
public void testContinuousQuery() throws Exception {
    try (IgniteEx originNode = startGrid(0);
        IgniteEx remoteNode = startGrid(1)) {
        IgniteCache<Integer, Integer> cache = originNode.createCache("cache-1");
        SystemView<ContinuousQueryView> origQrys = originNode.context().systemView().view(CQ_SYS_VIEW);
        SystemView<ContinuousQueryView> remoteQrys = remoteNode.context().systemView().view(CQ_SYS_VIEW);
        assertEquals(0, origQrys.size());
        assertEquals(0, remoteQrys.size());
        try (QueryCursor qry = cache.query(new ContinuousQuery<>().setInitialQuery(new ScanQuery<>()).setPageSize(100).setTimeInterval(1000).setLocalListener(evts -> {
        // No-op.
        }).setRemoteFilterFactory(() -> evt -> true))) {
            for (int i = 0; i < 100; i++) cache.put(i, i);
            checkContinuousQueryView(originNode, origQrys, true);
            checkContinuousQueryView(originNode, remoteQrys, false);
        }
        assertEquals(0, origQrys.size());
        assertTrue(waitForCondition(() -> remoteQrys.size() == 0, getTestTimeout()));
    }
}

Example 5 with QueryCursor

use of org.apache.ignite.cache.query.QueryCursor in project ignite by apache.

the class IgniteCacheConfigVariationsFullApiTest method testContinuousQuery.

/**
 * @throws Exception If failed.
 */
@Test
public void testContinuousQuery() throws Exception {
    runInAllDataModes(new TestRunnable() {

        @Override
        public void run() throws Exception {
            final AtomicInteger updCnt = new AtomicInteger();
            ContinuousQuery<Object, Object> qry = new ContinuousQuery<>();
            qry.setInitialQuery(new ScanQuery<>(new IgniteBiPredicate<Object, Object>() {

                @Override
                public boolean apply(Object key, Object val) {
                    return valueOf(key) >= 3;
                }
            }));
            qry.setLocalListener(new CacheEntryUpdatedListener<Object, Object>() {

                @Override
                public void onUpdated(Iterable<CacheEntryEvent<? extends Object, ? extends Object>> evts) throws CacheEntryListenerException {
                    for (CacheEntryEvent<? extends Object, ? extends Object> evt : evts) {
                        int v = valueOf(evt.getKey());
                        // Check filter.
                        assertTrue("v=" + v, v >= 10 && v < 15);
                        updCnt.incrementAndGet();
                    }
                }
            });
            qry.setRemoteFilter(new TestCacheEntryEventSerializableFilter());
            IgniteCache<Object, Object> cache = jcache();
            for (int i = 0; i < 10; i++) cache.put(key(i), value(i));
            try (QueryCursor<Cache.Entry<Object, Object>> cur = cache.query(qry)) {
                int cnt = 0;
                for (Cache.Entry<Object, Object> e : cur) {
                    cnt++;
                    int val = valueOf(e.getKey());
                    assertTrue("v=" + val, val >= 3);
                }
                assertEquals(7, cnt);
                for (int i = 10; i < 20; i++) cache.put(key(i), value(i));
                GridTestUtils.waitForCondition(new GridAbsPredicateX() {

                    @Override
                    public boolean applyx() throws IgniteCheckedException {
                        return updCnt.get() == 5;
                    }
                }, 30_000);
            }
        }
    });
}