processing/src/test/java/org/apache/druid/segment/data/BitmapSerdeFactoryTest.java

/*
 * 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
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 */

package org.apache.druid.segment.data;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.druid.jackson.DefaultObjectMapper;
import org.junit.Assert;
import org.junit.Test;

public class BitmapSerdeFactoryTest
{
  @Test
  public void testSerialization() throws Exception
  {
    ObjectMapper mapper = new DefaultObjectMapper();
    Assert.assertEquals("{\"type\":\"roaring\",\"compressRunOnSerialization\":true}", mapper.writeValueAsString(new RoaringBitmapSerdeFactory(null)));
    Assert.assertEquals("{\"type\":\"roaring\",\"compressRunOnSerialization\":false}", mapper.writeValueAsString(new RoaringBitmapSerdeFactory(false)));
    Assert.assertEquals("{\"type\":\"roaring\",\"compressRunOnSerialization\":true}", mapper.writeValueAsString(new RoaringBitmapSerdeFactory(true)));
    Assert.assertEquals("{\"type\":\"concise\"}", mapper.writeValueAsString(new ConciseBitmapSerdeFactory()));
    Assert.assertEquals("{\"type\":\"concise\"}", mapper.writeValueAsString(BitmapSerde.createLegacyFactory()));
    Assert.assertEquals("{\"type\":\"roaring\",\"compressRunOnSerialization\":true}", mapper.writeValueAsString(new BitmapSerde.DefaultBitmapSerdeFactory()));
    Assert.assertEquals("{\"type\":\"concise\"}", mapper.writeValueAsString(new BitmapSerde.LegacyBitmapSerdeFactory()));
  }

  @Test
  public void testDeserialization() throws Exception
  {
    ObjectMapper mapper = new DefaultObjectMapper();
    final BitmapSerdeFactory roaringFactory = mapper.readValue("{\"type\":\"roaring\"}", BitmapSerdeFactory.class);
    Assert.assertTrue(roaringFactory instanceof RoaringBitmapSerdeFactory);
    Assert.assertTrue(((RoaringBitmapSerdeFactory) roaringFactory).getCompressRunOnSerialization());

    final BitmapSerdeFactory compressingRoaringFactory = mapper.readValue(
        "{\"type\":\"roaring\", \"compressRunOnSerialization\":false}",
        BitmapSerdeFactory.class
    );
    Assert.assertTrue(compressingRoaringFactory instanceof RoaringBitmapSerdeFactory);
    Assert.assertFalse(((RoaringBitmapSerdeFactory) compressingRoaringFactory).getCompressRunOnSerialization());

    Assert.assertTrue(mapper.readValue("{\"type\":\"concise\"}", BitmapSerdeFactory.class) instanceof ConciseBitmapSerdeFactory);
    Assert.assertTrue(mapper.readValue("{\"type\":\"BitmapSerde$SomeRandomClass\"}", BitmapSerdeFactory.class) instanceof RoaringBitmapSerdeFactory);
  }
}