/*
 * 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.Collections;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.cache.CacheAtomicityMode;
import org.apache.ignite.cache.CacheMode;
import org.apache.ignite.cache.eviction.fifo.FifoEvictionPolicy;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.events.CacheEvent;
import org.apache.ignite.events.Event;
import org.apache.ignite.events.EventType;
import org.apache.ignite.lang.IgnitePredicate;
import org.apache.ignite.testframework.MvccFeatureChecker;
import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
import org.junit.Before;
import org.junit.Test;

import static org.apache.ignite.events.EventType.EVT_CACHE_ENTRY_EVICTED;
import static org.apache.ignite.events.EventType.EVT_JOB_MAPPED;
import static org.apache.ignite.events.EventType.EVT_TASK_FAILED;
import static org.apache.ignite.events.EventType.EVT_TASK_FINISHED;

/**
 * Eviction event self test.
 */
public abstract class GridCacheEvictionEventAbstractTest extends GridCommonAbstractTest {
    /** */
    @Before
    public void beforeGridCacheEvictionEventAbstractTest() {
        MvccFeatureChecker.skipIfNotSupported(MvccFeatureChecker.Feature.EVICTION);
        MvccFeatureChecker.skipIfNotSupported(MvccFeatureChecker.Feature.CACHE_EVENTS);
    }

    /**
     *
     */
    protected GridCacheEvictionEventAbstractTest() {
        super(true); // Start node.
    }

    /** {@inheritDoc} */
    @Override protected IgniteConfiguration getConfiguration() throws Exception {
        MvccFeatureChecker.skipIfNotSupported(MvccFeatureChecker.Feature.EVICTION);
        MvccFeatureChecker.skipIfNotSupported(MvccFeatureChecker.Feature.CACHE_EVENTS);

        IgniteConfiguration c = super.getConfiguration();

        CacheConfiguration cc = defaultCacheConfiguration();

        cc.setCacheMode(cacheMode());
        cc.setAtomicityMode(atomicityMode());
        cc.setEvictionPolicy(new FifoEvictionPolicy());
        cc.setOnheapCacheEnabled(true);

        c.setCacheConfiguration(cc);

        c.setIncludeEventTypes(EVT_CACHE_ENTRY_EVICTED, EVT_TASK_FAILED, EVT_TASK_FINISHED, EVT_JOB_MAPPED);

        return c;
    }

    /**
     * @return Cache mode.
     */
    protected abstract CacheMode cacheMode();

    /**
     * @return Atomicity mode.
     */
    protected abstract CacheAtomicityMode atomicityMode();

    /**
     * @throws Exception If failed.
     */
    @Test
    public void testEvictionEvent() throws Exception {
        Ignite g = grid();

        final CountDownLatch latch = new CountDownLatch(1);

        final AtomicReference<String> oldVal = new AtomicReference<>();

        g.events().localListen(new IgnitePredicate<Event>() {
            @Override public boolean apply(Event evt) {
                CacheEvent e = (CacheEvent)evt;

                oldVal.set((String)e.oldValue());

                latch.countDown();

                return true;
            }
        }, EventType.EVT_CACHE_ENTRY_EVICTED);

        IgniteCache<String, String> c = g.cache(DEFAULT_CACHE_NAME);

        c.put("1", "val1");

        c.localEvict(Collections.singleton("1"));

        assertTrue("Failed to wait for eviction event", latch.await(10, TimeUnit.SECONDS));
    }
}