org.apache.druid.segment.MapVirtualColumnTestBase.java Source code

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Here is the source code for org.apache.druid.segment.MapVirtualColumnTestBase.java

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/*
 * 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 org.apache.druid.segment;

import com.google.common.io.CharSource;
import org.apache.druid.data.input.impl.DelimitedParseSpec;
import org.apache.druid.data.input.impl.DimensionsSpec;
import org.apache.druid.data.input.impl.StringInputRowParser;
import org.apache.druid.data.input.impl.TimestampSpec;
import org.apache.druid.java.util.common.DateTimes;
import org.apache.druid.segment.incremental.IncrementalIndex;
import org.apache.druid.segment.incremental.IncrementalIndexSchema;

import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

public class MapVirtualColumnTestBase {
    static IncrementalIndex generateIndex() throws IOException {
        final CharSource input = CharSource
                .wrap("2011-01-12T00:00:00.000Z\ta\tkey1,key2,key3\tvalue1,value2,value3\n"
                        + "2011-01-12T00:00:00.000Z\tb\tkey4,key5,key6\tvalue4\n"
                        + "2011-01-12T00:00:00.000Z\tc\tkey1,key5\tvalue1,value5,value9\n");

        final StringInputRowParser parser = new StringInputRowParser(
                new DelimitedParseSpec(new TimestampSpec("ts", "auto", null),
                        new DimensionsSpec(DimensionsSpec.getDefaultSchemas(Arrays.asList("dim", "keys", "values")),
                                null, null),
                        "\t", ",", Arrays.asList("ts", "dim", "keys", "values"), false, 0),
                "utf8");

        final IncrementalIndexSchema schema = new IncrementalIndexSchema.Builder()
                .withMinTimestamp(DateTimes.of("2011-01-12T00:00:00.000Z").getMillis()).build();

        return TestIndex.loadIncrementalIndex(
                () -> new IncrementalIndex.Builder().setIndexSchema(schema).setMaxRowCount(10000).buildOnheap(),
                input, parser);
    }

    static <K, V> Map<K, V> mapOf(Object... elements) {
        final Map<K, V> map = new HashMap<>();
        for (int i = 0; i < elements.length; i += 2) {
            //noinspection unchecked
            map.put((K) elements[i], (V) elements[i + 1]);
        }
        return map;
    }
}