/*
 * Copyright (c) 2008-2019, 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 solutions;

import com.hazelcast.jet.Jet;
import com.hazelcast.jet.JetInstance;
import com.hazelcast.jet.Job;
import com.hazelcast.jet.aggregate.AggregateOperations;
import com.hazelcast.jet.pipeline.Pipeline;
import com.hazelcast.jet.pipeline.SinkStage;
import com.hazelcast.jet.pipeline.Sinks;
import com.hazelcast.jet.pipeline.WindowDefinition;
import dto.Trade;
import sources.TradeSource;

public class Solution5 {

    public static void main(String[] args) {
        Pipeline p = buildPipeline();

        JetInstance jet = Jet.bootstrappedInstance();

        try {
            Job job = jet.newJob(p);
            job.join();
        } finally {
            jet.shutdown();
        }
    }

    private static Pipeline buildPipeline() {
        Pipeline p = Pipeline.create();

        SinkStage sinkStage = p.readFrom(TradeSource.tradeSource(1000))
                .withNativeTimestamps(0)
                // Step 1 solution
                // .window(WindowDefinition.tumbling(3000))
                // .aggregate(AggregateOperations.summingLong(Trade::getPrice))
                //
                // Step 2 solution
                // .window(WindowDefinition.tumbling(3000).setEarlyResultsPeriod(1000))
                // .aggregate(AggregateOperations.summingLong(Trade::getPrice))
                //
                // Step 3 solution
                // .window(WindowDefinition.sliding(3000,1000))
                // .aggregate(AggregateOperations.summingLong(Trade::getPrice)
                //
                // Step 4 solution
                // .groupingKey(Trade::getSymbol)
                // .window(WindowDefinition.sliding(3000,1000))
                // .aggregate(AggregateOperations.summingLong(Trade::getPrice))

                .writeTo(Sinks.logger());

        return p;
    }
}