/**
 * 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 com.jstorm.example.unittests.trident;

import backtype.storm.Config;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Values;
import com.jstorm.example.unittests.utils.JStormUnitTestRunner;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import storm.trident.Stream;
import storm.trident.TridentTopology;
import storm.trident.operation.Consumer;
import storm.trident.testing.CountAsAggregator;
import storm.trident.testing.Split;
import storm.trident.tuple.TridentTuple;
import storm.trident.windowing.InMemoryWindowsStoreFactory;
import storm.trident.windowing.WindowsStoreFactory;
import storm.trident.windowing.config.*;

import java.util.HashMap;
import java.util.Map;

import static org.junit.Assert.assertEquals;

/**
 * @author binyang.dby on 2016/7/22.
 */
public class TridentTumblingCountWindowTest {

    private final static Logger LOG = LoggerFactory.getLogger(TridentTumblingCountWindowTest.class);
    private WindowConfig windowConfig = TumblingCountWindow.of(1000);
    public final static int SPOUT_BATCH_SIZE = 3;
    public final static int SPOUT_LIMIT = 1000;

    @Test
    public void testTridentTumblingCountWindow()
    {
        WindowsStoreFactory windowsStoreFactory = new InMemoryWindowsStoreFactory();
        FixedLimitBatchSpout spout = new FixedLimitBatchSpout(SPOUT_LIMIT, new Fields("sentence"), SPOUT_BATCH_SIZE,
                    new Values("the cow jumped over the moon"),
                    new Values("the man went to the store and bought some candy"),
                    new Values("four score and seven years ago"), new Values("how many apples can you eat"),
                    new Values("to be or not to be the person"));

        TridentTopology tridentTopology = new TridentTopology();

        Stream stream = tridentTopology.newStream("spout1", spout).parallelismHint(16)
                    .each(new Fields("sentence"), new Split(), new Fields("word"))
                    .window(windowConfig, windowsStoreFactory, new Fields("word"), new CountAsAggregator(), new Fields("count"))
                    .peek(new ValidateConsumer());

        Map config = new HashMap();
        config.put(Config.TOPOLOGY_NAME, "TridentTumblingCountWindowTest");

        JStormUnitTestRunner.submitTopology(tridentTopology.build(), null, 120, null);
    }

    private static class ValidateConsumer implements Consumer
    {
        private long expectValueType = 1000;

        @Override
        public void accept(TridentTuple input) {
            LOG.info("Received tuple: [{}]", input);
            long receive = input.getLong(0);
            assertEquals(expectValueType, receive);
        }
    }
}