io.druid.query.groupby.GroupByQueryRunnerTestHelper.java Source code

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Here is the source code for io.druid.query.groupby.GroupByQueryRunnerTestHelper.java

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/*
 * Druid - a distributed column store.
 * Copyright 2012 - 2015 Metamarkets Group Inc.
 *
 * 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 io.druid.query.groupby;

import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.metamx.common.guava.Sequence;
import com.metamx.common.guava.Sequences;
import io.druid.data.input.MapBasedRow;
import io.druid.data.input.Row;
import io.druid.query.FinalizeResultsQueryRunner;
import io.druid.query.QueryRunner;
import io.druid.query.QueryRunnerFactory;
import io.druid.query.QueryToolChest;
import org.joda.time.DateTime;

import java.util.Map;

/**
 */
public class GroupByQueryRunnerTestHelper {
    public static Iterable<Row> runQuery(QueryRunnerFactory factory, QueryRunner runner, GroupByQuery query) {

        QueryToolChest toolChest = factory.getToolchest();
        QueryRunner theRunner = new FinalizeResultsQueryRunner<>(
                toolChest.mergeResults(toolChest.preMergeQueryDecoration(runner)), toolChest);

        Sequence<Row> queryResult = theRunner.run(query, Maps.newHashMap());
        return Sequences.toList(queryResult, Lists.<Row>newArrayList());
    }

    public static Row createExpectedRow(final String timestamp, Object... vals) {
        return createExpectedRow(new DateTime(timestamp), vals);
    }

    public static Row createExpectedRow(final DateTime timestamp, Object... vals) {
        Preconditions.checkArgument(vals.length % 2 == 0);

        Map<String, Object> theVals = Maps.newHashMap();
        for (int i = 0; i < vals.length; i += 2) {
            theVals.put(vals[i].toString(), vals[i + 1]);
        }

        DateTime ts = new DateTime(timestamp);
        return new MapBasedRow(ts, theVals);
    }

}