modules/core/src/test/java/org/apache/ignite/internal/processors/cache/IgniteCacheScanPredicateDeploymentSelfTest.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.cache;

import java.util.List;
import javax.cache.Cache;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.cache.CacheAtomicityMode;
import org.apache.ignite.cache.query.ScanQuery;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.lang.IgniteBiPredicate;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Test;

import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL;
import static org.apache.ignite.cache.CacheMode.PARTITIONED;
import static org.apache.ignite.cache.CacheRebalanceMode.SYNC;
import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_SYNC;

/**
 *
 */
public class IgniteCacheScanPredicateDeploymentSelfTest extends GridCommonAbstractTest {
    /** Test value. */
    protected static final String TEST_PREDICATE = "org.apache.ignite.tests.p2p.CacheDeploymentAlwaysTruePredicate";

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

        if (getTestIgniteInstanceName(3).equals(igniteInstanceName))
            cfg.setClassLoader(getExternalClassLoader());

        cfg.setCacheConfiguration(cacheConfiguration());

        cfg.setConnectorConfiguration(null);

        return cfg;
    }

    /**
     * @return Cache configuration.
     * @throws Exception In case of error.
     */
    protected CacheConfiguration cacheConfiguration() throws Exception {
        CacheConfiguration cfg = defaultCacheConfiguration();

        cfg.setCacheMode(PARTITIONED);
        cfg.setWriteSynchronizationMode(FULL_SYNC);
        cfg.setRebalanceMode(SYNC);
        cfg.setAtomicityMode(atomicityMode());
        cfg.setBackups(1);

        return cfg;
    }

    /** */
    protected CacheAtomicityMode atomicityMode() {
        return TRANSACTIONAL;
    }

    /**
     * @throws Exception In case of error.
     */
    @Test
    public void testDeployScanPredicate() throws Exception {
        startGrids(4);

        awaitPartitionMapExchange();

        try {
            IgniteCache<Object, Object> cache = grid(3).cache(DEFAULT_CACHE_NAME);

            // It is important that there are no too many keys.
            for (int i = 0; i < 1; i++)
                cache.put(i, i);

            Class predCls = grid(3).configuration().getClassLoader().loadClass(TEST_PREDICATE);

            IgniteBiPredicate<Object, Object> pred = (IgniteBiPredicate<Object, Object>)predCls.newInstance();

            List<Cache.Entry<Object, Object>> all = cache.query(new ScanQuery<>(pred)).getAll();

            assertEquals(1, all.size());
        }
        finally {
            stopAllGrids();
        }
    }
}