modules/core/src/test/java/org/apache/ignite/internal/processors/service/ServicePredicateAccessCacheTest.java

/*
 * 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.service;

import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.Ignition;
import org.apache.ignite.cluster.ClusterGroup;
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.IgniteInternalFuture;
import org.apache.ignite.internal.binary.BinaryMarshaller;
import org.apache.ignite.lang.IgnitePredicate;
import org.apache.ignite.services.Service;
import org.apache.ignite.services.ServiceContext;
import org.apache.ignite.testframework.GridTestUtils;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Test;

import static org.apache.ignite.cache.CacheAtomicityMode.ATOMIC;
import static org.apache.ignite.cache.CacheMode.REPLICATED;
import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_SYNC;

/**
 *
 */
public class ServicePredicateAccessCacheTest extends GridCommonAbstractTest {
    /** */
    private static CountDownLatch latch;

    /** {@inheritDoc} */
    @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception {
        IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName);

        cfg.setMarshaller(new BinaryMarshaller());

        cfg.setPeerClassLoadingEnabled(false);

        return cfg;
    }

    /** {@inheritDoc} */
    @Override protected long getTestTimeout() {
        return 60_000;
    }

    /**
     * @throws Exception If failed.
     */
    @Test
    public void testPredicateAccessCache() throws Exception {
        final IgniteEx ignite0 = startGrid(0);

        CacheConfiguration<String, String> cacheCfg = new CacheConfiguration<>();

        cacheCfg.setName("testCache");
        cacheCfg.setAtomicityMode(ATOMIC);
        cacheCfg.setCacheMode(REPLICATED);
        cacheCfg.setWriteSynchronizationMode(FULL_SYNC);

        IgniteCache<String, String> cache = ignite0.getOrCreateCache(cacheCfg);

        if (ignite0.context().service() instanceof IgniteServiceProcessor)
            cache.put(ignite0.cluster().localNode().id().toString(), "val");

        latch = new CountDownLatch(1);

        final ClusterGroup grp = ignite0.cluster().forPredicate((IgnitePredicate<ClusterNode>)node -> {
            System.out.println("Predicated started [thread=" + Thread.currentThread().getName() + ']');

            latch.countDown();

            try {
                Thread.sleep(3000);
            }
            catch (InterruptedException ignore) {
                // No-op.
            }

            System.out.println("Call contains key [thread=" + Thread.currentThread().getName() + ']');

            boolean ret = Ignition.localIgnite().cache("testCache").containsKey(node.id().toString());

            System.out.println("After contains key [ret=" + ret +
                ", thread=" + Thread.currentThread().getName() + ']');

            return ret;
        });

        IgniteInternalFuture<?> fut = GridTestUtils.runAsync(new Callable<Void>() {
            @Override public Void call() throws Exception {
                info("Start deploy service.");

                ignite0.services(grp).deployNodeSingleton("testService", new TestService());

                info("Service deployed.");

                return null;
            }
        }, "deploy-thread");

        latch.await();

        startGrid(1);

        fut.get();
    }

    /**
     *
     */
    public static class TestService implements Service {
        /** {@inheritDoc} */
        @Override public void execute(ServiceContext ctx) {
            // No-op.
        }

        /** {@inheritDoc} */
        @Override public void init(ServiceContext ctx) {
            // No-op.
        }

        /** {@inheritDoc} */
        @Override public void cancel(ServiceContext ctx) {
            // No-op.
        }
    }
}