ololo3000 commented on a change in pull request #7620: IGNITE-12828 Fixes NPE during CQ registration with failed deployment. URL: https://github.com/apache/ignite/pull/7620#discussion_r405416255
########## File path: modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryFilterDeploymentFailedTest.java ########## @@ -0,0 +1,180 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.ignite.internal.processors.cache.query.continuous; + +import java.util.Collection; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicInteger; +import javax.cache.CacheException; +import javax.cache.configuration.Factory; +import javax.cache.event.CacheEntryEventFilter; +import org.apache.ignite.Ignite; +import org.apache.ignite.cache.query.ContinuousQuery; +import org.apache.ignite.cluster.ClusterNode; +import org.apache.ignite.configuration.CacheConfiguration; +import org.apache.ignite.configuration.IgniteConfiguration; +import org.apache.ignite.internal.IgniteEx; +import org.apache.ignite.internal.TestRecordingCommunicationSpi; +import org.apache.ignite.internal.managers.deployment.GridDeploymentRequest; +import org.apache.ignite.internal.managers.discovery.DiscoveryCustomMessage; +import org.apache.ignite.internal.processors.continuous.StopRoutineDiscoveryMessage; +import org.apache.ignite.internal.util.typedef.G; +import org.apache.ignite.internal.util.typedef.internal.U; +import org.apache.ignite.lang.IgniteFuture; +import org.apache.ignite.spi.discovery.DiscoverySpi; +import org.apache.ignite.spi.discovery.DiscoverySpiCustomMessage; +import org.apache.ignite.spi.discovery.DiscoverySpiListener; +import org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi; +import org.apache.ignite.spi.systemview.view.ContinuousQueryView; +import org.apache.ignite.spi.systemview.view.SystemView; +import org.apache.ignite.testframework.GridTestUtils; +import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; +import org.jetbrains.annotations.Nullable; +import org.junit.Test; + +import static org.apache.ignite.cluster.ClusterState.ACTIVE; +import static org.apache.ignite.internal.TestRecordingCommunicationSpi.spi; +import static org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.CQ_SYS_VIEW; +import static org.apache.ignite.testframework.GridTestUtils.assertThrowsAnyCause; + +/** + * Tests the behavior of continuous query registration in case the remote node failed to obtain the filter deployment. + */ +public class CacheContinuousQueryFilterDeploymentFailedTest extends GridCommonAbstractTest { + /** The name of the CQ filter factory class. Its obtaining on a non-local node requires P2P class loading. */ + private static final String EXT_FILTER_FACTORY_CLS = + "org.apache.ignite.tests.p2p.CacheDeploymentEntryEventFilterFactory"; + + /** Counter of nodes that finished processing of {@link StopRoutineDiscoveryMessage}. */ + private final AtomicInteger stopRoutineMsgCntr = new AtomicInteger(); + + /** {@inheritDoc} */ + @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception { + IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName); + + DiscoverySpi spi = new TcpDiscoverySpi() { + @Override public void setListener(@Nullable DiscoverySpiListener lsnr) { + super.setListener(lsnr == null ? null : new TestDiscoverySpiListener(lsnr, stopRoutineMsgCntr)); + } + }; + + cfg.setCommunicationSpi(new TestRecordingCommunicationSpi()); + cfg.setNetworkTimeout(1000); + cfg.setDiscoverySpi(spi); + + return cfg; + } + + /** + * Tests continuous query behavior in case of filter deployment obtaining failure. + * + * @throws Exception If failed. + */ + @Test + @SuppressWarnings({"ThrowableNotThrown"}) + public void testContinuousQueryFilterDeploymentFailed() throws Exception { + IgniteEx ignite = startGrids(2); + + IgniteEx client = startClientGrid(2); + + ignite.cluster().state(ACTIVE); + + ignite.createCache(new CacheConfiguration<>(DEFAULT_CACHE_NAME)); + + ContinuousQuery<Integer, Integer> qry = new ContinuousQuery<>(); + + Class<Factory<CacheEntryEventFilter<Integer, Integer>>> rmtFilterFactoryCls = + (Class<Factory<CacheEntryEventFilter<Integer, Integer>>>)getExternalClassLoader() + .loadClass(EXT_FILTER_FACTORY_CLS); + + Factory<CacheEntryEventFilter<Integer, Integer>> rmtFilterFactory = rmtFilterFactoryCls.newInstance(); + + qry.setRemoteFilterFactory(rmtFilterFactory); + + spi(grid(1)).blockMessages((node, msg) -> msg instanceof GridDeploymentRequest); + + assertThrowsAnyCause( + log, + () -> client.cache(DEFAULT_CACHE_NAME).query(qry), + CacheException.class, + "Failed to start continuous query." + ); + + checkContinuousQueryAborted(); + } + + /** + * Awaits handling of stop routine message on all cluster nodes and checks that CQ registraition was fully aborted. + */ + private void checkContinuousQueryAborted() throws Exception { + List<Ignite> grids = G.allGrids(); + + GridTestUtils.waitForCondition(() -> stopRoutineMsgCntr.get() == grids.size(), getTestTimeout()); + + assertTrue(grids.stream().allMatch(ignite -> { + SystemView<ContinuousQueryView> locQrys = ((IgniteEx)ignite).context().systemView().view(CQ_SYS_VIEW); + + return locQrys.size() == 0; + })); + Review comment: Thanks. 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