com.datatorrent.contrib.dimensions.CompositeAggregatorDimensionsQueryTester.java Source code

Java tutorial

Introduction

Here is the source code for com.datatorrent.contrib.dimensions.CompositeAggregatorDimensionsQueryTester.java

Source

/**
 * Copyright (c) 2016 DataTorrent, 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 com.datatorrent.contrib.dimensions;

import java.util.List;
import java.util.Map;
import java.util.Set;

import org.junit.Assert;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.apache.apex.malhar.lib.dimensions.DimensionsEvent.EventKey;
import org.apache.commons.lang3.mutable.MutableLong;

import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;

import com.datatorrent.contrib.hdht.HDHTReader.HDSQuery;
import com.datatorrent.lib.appdata.schemas.CustomTimeBucket;
import com.datatorrent.lib.appdata.schemas.DataQueryDimensional;
import com.datatorrent.lib.appdata.schemas.DataResultDimensional;
import com.datatorrent.lib.appdata.schemas.FieldsAggregatable;
import com.datatorrent.lib.appdata.schemas.FieldsDescriptor;
import com.datatorrent.lib.appdata.schemas.TimeBucket;
import com.datatorrent.netlet.util.Slice;

public class CompositeAggregatorDimensionsQueryTester extends CompositeDimensionComputationTester {
    @Override
    public void aggregationTest() {
    }

    @Test
    public void queryDataTest() {
        testCompositeAggregation();
    }

    @Override
    protected void doBeforeEndWindow(long windowId) {
        if (windowId != 2) {
            return;
        }

        DataResultDimensional drd = doQuery();
        Assert.assertEquals(1, drd.getValues().size());
    }

    public DataResultDimensional doQuery() {
        List<Map<String, HDSQuery>> hdsQueries = Lists.newArrayList();
        List<Map<String, EventKey>> eventKeys = Lists.newArrayList();

        DimensionsQueryExecutor dqe = new DimensionsQueryExecutor(store, store.schemaRegistry);

        final String aggregatorName = "TOPN-SUM-10_location";
        final int aggregatorId = store.getAggregatorRegistry().getTopBottomAggregatorNameToID().get(aggregatorName);

        EventKey eventKey = null;
        for (EventKey ek : totalEventKeys) {
            if (ek.getAggregatorID() == aggregatorId) {
                eventKey = ek;
                break;
            }
        }

        issueHDSQuery(store, eventKey);

        Map<String, HDSQuery> aggregatorToQuery = Maps.newHashMap();
        aggregatorToQuery.put(aggregatorName, store.getQueries().values().iterator().next());
        hdsQueries.add(aggregatorToQuery);

        Map<String, EventKey> aggregatorToEventKey = Maps.newHashMap();
        aggregatorToEventKey.put(aggregatorName, eventKey);
        eventKeys.add(aggregatorToEventKey);

        QueryMeta queryMeta = new QueryMeta();
        queryMeta.setHdsQueries(hdsQueries);
        queryMeta.setEventKeys(eventKeys);

        long currentTime = 0L;
        FieldsDescriptor fdKey = eventSchema.getDimensionsDescriptorIDToKeyDescriptor().get(0);
        Map<String, Set<Object>> keyToValues = Maps.newHashMap();
        keyToValues.put("publisher", Sets.newHashSet());
        //keyToValues.put("advertiser", Sets.newHashSet());

        Map<String, Set<String>> fieldToAggregators = Maps.newHashMap();
        fieldToAggregators.put("impressions", Sets.newHashSet(aggregatorName));
        fieldToAggregators.put("cost", Sets.newHashSet(aggregatorName));

        FieldsAggregatable fieldsAggregatable = new FieldsAggregatable(fieldToAggregators);

        DataQueryDimensional query = new DataQueryDimensional("1", DataQueryDimensional.TYPE, currentTime,
                currentTime, new CustomTimeBucket(TimeBucket.MINUTE), fdKey, keyToValues, fieldsAggregatable, true);

        return (DataResultDimensional) dqe.executeQuery(query, queryMeta, new MutableLong(1L));
    }

    public static void issueHDSQuery(DimensionsStoreHDHT store, EventKey eventKey) {
        LOG.debug("Issued QUERY");
        Slice key = new Slice(store.getEventKeyBytesGAE(eventKey));
        HDSQuery hdsQuery = new HDSQuery();
        hdsQuery.bucketKey = AppDataSingleSchemaDimensionStoreHDHT.DEFAULT_BUCKET_ID;
        hdsQuery.key = key;
        store.addQuery(hdsQuery);
    }

    private static final Logger LOG = LoggerFactory.getLogger(DimensionsQueryExecutorTest.class);
}