/*
 * Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed 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 configvalidation;

import com.hazelcast.config.Config;
import com.hazelcast.config.MapConfig;
import com.hazelcast.config.MergePolicyConfig;
import com.hazelcast.config.ScheduledExecutorConfig;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import mergepolicies.MergeIntegerValuesMergePolicy;

/**
 * Shows that {@link MergeIntegerValuesMergePolicy}
 * works on all split-brain capable data structures.
 */
public class MergeIntegerValuesMergePolicyExample {

    public static void main(String[] args) {
        MergePolicyConfig mergePolicyConfig = new MergePolicyConfig()
                .setPolicy(MergeIntegerValuesMergePolicy.class.getName());

        MapConfig mapConfig = new MapConfig("default")
                .setMergePolicyConfig(mergePolicyConfig);

        ScheduledExecutorConfig scheduledExecutorConfig = new ScheduledExecutorConfig("default")
                .setMergePolicyConfig(mergePolicyConfig);

        Config config = new Config()
                .addMapConfig(mapConfig)
                .addScheduledExecutorConfig(scheduledExecutorConfig);

        try {
            HazelcastInstance hazelcastInstance = Hazelcast.newHazelcastInstance(config);

            // this works on all split-brain capable data structures, since MergingValue is provided by all of them
            // (the only exception is the CardinalityEstimator, which doesn't allow custom merge policies)
            hazelcastInstance.getMap("myMap");
            hazelcastInstance.getScheduledExecutorService("myScheduledExecutor");
        } finally {
            Hazelcast.shutdownAll();
        }
    }
}
