/*
 * 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.distributed.rebalancing;

import java.util.concurrent.Callable;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.cache.CacheAtomicityMode;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.testframework.GridTestUtils;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Test;

import static org.apache.ignite.cache.CacheMode.REPLICATED;
import static org.apache.ignite.cache.CacheRebalanceMode.SYNC;

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

        CacheConfiguration<Object, Object> ccfg = new CacheConfiguration<>(DEFAULT_CACHE_NAME);
        ccfg.setCacheMode(REPLICATED);
        ccfg.setRebalanceMode(SYNC);
        ccfg.setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL);

        cfg.setCacheConfiguration(ccfg);

        return cfg;
    }

    /**
     * @throws Exception If failed.
     */
    @Test
    public void testDataRebalancing() throws Exception {
        Ignite ignite = startGrid(0);

        final int KEYS = 10_000;

        IgniteCache<Object, Object> cache = ignite.cache(DEFAULT_CACHE_NAME);

        for (int i = 0; i < KEYS; i++)
            cache.put(i, i);

        for (int i = 0; i < 3; i++) {
            log.info("Iteration: " + i);

            final AtomicInteger idx = new AtomicInteger(1);

            GridTestUtils.runMultiThreaded(new Callable<Void>() {
                @Override public Void call() throws Exception {
                    try (Ignite ignite = startGrid(idx.getAndIncrement())) {
                        IgniteCache<Object, Object> cache = ignite.cache(DEFAULT_CACHE_NAME);

                        for (int i = 0; i < KEYS; i++)
                            assertNotNull(cache.localPeek(i));
                    }

                    return null;
                }
            }, 5, "start-node");
        }
    }
}
