/*
 * 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.persistence;

import java.io.File;
import java.util.concurrent.Callable;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.IgniteDataStreamer;
import org.apache.ignite.cache.CacheAtomicityMode;
import org.apache.ignite.cache.CacheRebalanceMode;
import org.apache.ignite.cache.CacheWriteSynchronizationMode;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.DataRegionConfiguration;
import org.apache.ignite.configuration.DataStorageConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.configuration.WALMode;
import org.apache.ignite.internal.IgniteEx;
import org.apache.ignite.internal.IgniteInternalFuture;
import org.apache.ignite.internal.util.typedef.G;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.testframework.GridTestUtils;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Test;

import static org.apache.ignite.internal.processors.cache.persistence.file.FilePageStoreManager.DFLT_STORE_DIR;

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

        cfg.setCacheConfiguration(
            new CacheConfiguration(DEFAULT_CACHE_NAME)
                .setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL)
                .setBackups(1)
                .setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC)
                .setRebalanceMode(CacheRebalanceMode.SYNC)
        );

        DataStorageConfiguration memCfg = new DataStorageConfiguration()
            .setDefaultDataRegionConfiguration(
                new DataRegionConfiguration()
                    .setMaxSize(100L * 1024 * 1024)
                    .setPersistenceEnabled(true))
            .setWalMode(WALMode.LOG_ONLY)
            .setPageSize(1024)
            .setConcurrencyLevel(Runtime.getRuntime().availableProcessors() * 4);

        cfg.setDataStorageConfiguration(memCfg);

        return cfg;
    }

    /** {@inheritDoc} */
    @Override protected void beforeTestsStarted() throws Exception {
        stopAllGrids();

        cleanPersistenceDir();

        U.delete(new File(U.getIgniteHome(), DFLT_STORE_DIR));
    }

    /** {@inheritDoc} */
    @Override protected void afterTest() throws Exception {
        G.stopAll(true);

        cleanPersistenceDir();

        U.delete(new File(U.getIgniteHome(), DFLT_STORE_DIR));
    }

    /**
     * @throws Exception if failed.
     */
    @Test
    public void testRemovesDuringRebalancing() throws Exception {
        IgniteEx ig = startGrid(0);

        ig.active(true);

        try (IgniteDataStreamer<Object, Object> streamer = ig.dataStreamer(DEFAULT_CACHE_NAME)) {
            streamer.allowOverwrite(true);

            for (int i = 0; i < 100_000; i++)
                streamer.addData(i, i);
        }

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

        IgniteInternalFuture<Object> fut = GridTestUtils.runAsync(new Callable<Object>() {
            @Override public Object call() throws Exception {
                return startGrid(1);
            }
        });

        for (int i = 0; i < 100_000; i++)
            cache.remove(i);

        fut.get();

        IgniteEx another = grid(1);

        IgniteCache<Object, Object> cache1 = another.cache(DEFAULT_CACHE_NAME);

        for (int i = 0; i < 100_000; i++)
            assertNull(cache1.localPeek(i));
    }
}