/*
 * 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.util.Arrays;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.cache.CacheRebalanceMode;
import org.apache.ignite.cache.CacheWriteSynchronizationMode;
import org.apache.ignite.cache.affinity.rendezvous.RendezvousAffinityFunction;
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.processors.cache.distributed.dht.topology.GridDhtPartitionTopology;
import org.apache.ignite.testframework.MvccFeatureChecker;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Test;

/**
 *
 */
public class IgnitePdsPartitionsStateRecoveryTest extends GridCommonAbstractTest {
    /** Partitions count. */
    private static final int PARTS_CNT = 32;

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

        cfg.setConsistentId(igniteInstanceName);

        DataStorageConfiguration dsCfg = new DataStorageConfiguration()
            .setWalMode(WALMode.LOG_ONLY)
            .setWalSegmentSize(16 * 1024 * 1024)
            .setCheckpointFrequency(20 * 60 * 1000)
            .setDefaultDataRegionConfiguration(
                new DataRegionConfiguration()
                    .setMaxSize(512 * 1024 * 1024)
                    .setPersistenceEnabled(true)
            );

        cfg.setDataStorageConfiguration(dsCfg);

        CacheConfiguration ccfg = defaultCacheConfiguration()
            .setBackups(0)
            .setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC)
            .setAffinity(new RendezvousAffinityFunction(false, PARTS_CNT));

        // Disable rebalance to prevent owning MOVING partitions.
        if (MvccFeatureChecker.forcedMvcc())
            ccfg.setRebalanceDelay(Long.MAX_VALUE);
        else
            ccfg.setRebalanceMode(CacheRebalanceMode.NONE);

        cfg.setCacheConfiguration(ccfg);

        return cfg;
    }

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

        cleanPersistenceDir();

        System.setProperty(GridCacheDatabaseSharedManager.IGNITE_PDS_SKIP_CHECKPOINT_ON_NODE_STOP, "true");
    }

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

        cleanPersistenceDir();

        System.clearProperty(GridCacheDatabaseSharedManager.IGNITE_PDS_SKIP_CHECKPOINT_ON_NODE_STOP);
    }

    /**
     * Test checks that partition state is recovered properly if last checkpoint was skipped and there are logical updates to apply.
     *
     * @throws Exception If failed.
     */
    @Test
    public void testPartitionsStateConsistencyAfterRecovery() throws Exception {
        IgniteEx ignite = startGrid(0);

        ignite.cluster().active(true);

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

        for (int key = 0; key < 4096; key++)
            cache.put(key, key);

        forceCheckpoint();

        for (int key = 0; key < 4096; key++) {
            int[] payload = new int[4096];
            Arrays.fill(payload, key);

            cache.put(key, payload);
        }

        GridDhtPartitionTopology topology = ignite.cachex(DEFAULT_CACHE_NAME).context().topology();

        Assert.assertFalse(topology.hasMovingPartitions());

        log.info("Stopping grid...");

        stopGrid(0);

        ignite = startGrid(0);

        awaitPartitionMapExchange();

        topology = ignite.cachex(DEFAULT_CACHE_NAME).context().topology();

        Assert.assertFalse("Node restored moving partitions after join to topology.", topology.hasMovingPartitions());
    }

    /**
     * Test checks that partition state is recovered properly if only logical updates exist.
     *
     * @throws Exception If failed.
     */
    @Test
    public void testPartitionsStateConsistencyAfterRecoveryNoCheckpoints() throws Exception {
        Assume.assumeFalse("https://issues.apache.org/jira/browse/IGNITE-10603", MvccFeatureChecker.forcedMvcc());

        IgniteEx ignite = startGrid(0);

        ignite.cluster().active(true);

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

        forceCheckpoint();

        for (int key = 0; key < 4096; key++) {
            int[] payload = new int[4096];
            Arrays.fill(payload, key);

            cache.put(key, payload);
        }

        GridDhtPartitionTopology topology = ignite.cachex(DEFAULT_CACHE_NAME).context().topology();

        Assert.assertFalse(topology.hasMovingPartitions());

        log.info("Stopping grid...");

        stopGrid(0);

        ignite = startGrid(0);

        awaitPartitionMapExchange();

        topology = ignite.cachex(DEFAULT_CACHE_NAME).context().topology();

        Assert.assertFalse("Node restored moving partitions after join to topology.", topology.hasMovingPartitions());
    }
}