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support customized factory.json via IndexSpec for segment persist #9957
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clintropolis
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clintropolis:custom-segmentizer-factory
Jun 1, 2020
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139 changes: 139 additions & 0 deletions
139
processing/src/test/java/org/apache/druid/segment/CustomSegmentizerFactoryTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| /* | ||
| * 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.fasterxml.jackson.databind.InjectableValues; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.jsontype.NamedType; | ||
| import org.apache.druid.jackson.DefaultObjectMapper; | ||
| import org.apache.druid.jackson.SegmentizerModule; | ||
| import org.apache.druid.java.util.common.Intervals; | ||
| import org.apache.druid.math.expr.ExprMacroTable; | ||
| import org.apache.druid.query.expression.TestExprMacroTable; | ||
| import org.apache.druid.segment.incremental.IncrementalIndex; | ||
| import org.apache.druid.segment.loading.MMappedQueryableSegmentizerFactory; | ||
| import org.apache.druid.segment.loading.SegmentLoadingException; | ||
| import org.apache.druid.segment.loading.SegmentizerFactory; | ||
| import org.apache.druid.segment.writeout.OffHeapMemorySegmentWriteOutMediumFactory; | ||
| import org.apache.druid.testing.InitializedNullHandlingTest; | ||
| import org.apache.druid.timeline.DataSegment; | ||
| import org.junit.Assert; | ||
| import org.junit.BeforeClass; | ||
| import org.junit.Rule; | ||
| import org.junit.Test; | ||
| import org.junit.rules.TemporaryFolder; | ||
|
|
||
| import java.io.File; | ||
| import java.io.IOException; | ||
|
|
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| public class CustomSegmentizerFactoryTest extends InitializedNullHandlingTest | ||
| { | ||
| private static ObjectMapper JSON_MAPPER; | ||
| private static IndexIO INDEX_IO; | ||
| private static IndexMerger INDEX_MERGER; | ||
|
|
||
| @Rule | ||
| public TemporaryFolder temporaryFolder = new TemporaryFolder(); | ||
|
|
||
| @BeforeClass | ||
| public static void setup() | ||
| { | ||
| final ObjectMapper mapper = new DefaultObjectMapper(); | ||
| mapper.registerModule(new SegmentizerModule()); | ||
| mapper.registerSubtypes(new NamedType(CustomSegmentizerFactory.class, "customSegmentFactory")); | ||
| final IndexIO indexIO = new IndexIO(mapper, () -> 0); | ||
|
|
||
| mapper.setInjectableValues( | ||
| new InjectableValues.Std() | ||
| .addValue(ExprMacroTable.class.getName(), TestExprMacroTable.INSTANCE) | ||
| .addValue(ObjectMapper.class.getName(), mapper) | ||
| .addValue(IndexIO.class, indexIO) | ||
| .addValue(DataSegment.PruneSpecsHolder.class, DataSegment.PruneSpecsHolder.DEFAULT) | ||
| ); | ||
|
|
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| JSON_MAPPER = mapper; | ||
| INDEX_IO = indexIO; | ||
| INDEX_MERGER = new IndexMergerV9(mapper, indexIO, OffHeapMemorySegmentWriteOutMediumFactory.instance()); | ||
| } | ||
|
|
||
| @Test | ||
| public void testDefaultSegmentizerPersist() throws IOException | ||
| { | ||
| IncrementalIndex data = TestIndex.makeRealtimeIndex("druid.sample.numeric.tsv"); | ||
| File segment = new File(temporaryFolder.newFolder(), "segment"); | ||
| File persisted = INDEX_MERGER.persist( | ||
| data, | ||
| Intervals.of("2011-01-12T00:00:00.000Z/2011-05-01T00:00:00.000Z"), | ||
| segment, | ||
| new IndexSpec( | ||
| null, | ||
| null, | ||
| null, | ||
| null, | ||
| null | ||
| ), | ||
| null | ||
| ); | ||
|
|
||
| File factoryJson = new File(persisted, "factory.json"); | ||
| Assert.assertTrue(factoryJson.exists()); | ||
| SegmentizerFactory factory = JSON_MAPPER.readValue(factoryJson, SegmentizerFactory.class); | ||
| Assert.assertTrue(factory instanceof MMappedQueryableSegmentizerFactory); | ||
| } | ||
|
|
||
| @Test | ||
| public void testCustomSegmentizerPersist() throws IOException | ||
| { | ||
| IncrementalIndex data = TestIndex.makeRealtimeIndex("druid.sample.numeric.tsv"); | ||
| File segment = new File(temporaryFolder.newFolder(), "segment"); | ||
| File persisted = INDEX_MERGER.persist( | ||
| data, | ||
| Intervals.of("2011-01-12T00:00:00.000Z/2011-05-01T00:00:00.000Z"), | ||
| segment, | ||
| new IndexSpec( | ||
| null, | ||
| null, | ||
| null, | ||
| null, | ||
| new CustomSegmentizerFactory() | ||
| ), | ||
| null | ||
| ); | ||
|
|
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| File factoryJson = new File(persisted, "factory.json"); | ||
| Assert.assertTrue(factoryJson.exists()); | ||
| SegmentizerFactory factory = JSON_MAPPER.readValue(factoryJson, SegmentizerFactory.class); | ||
| Assert.assertTrue(factory instanceof CustomSegmentizerFactory); | ||
| } | ||
|
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| private static class CustomSegmentizerFactory implements SegmentizerFactory | ||
| { | ||
| @Override | ||
| public Segment factorize(DataSegment segment, File parentDir, boolean lazy) throws SegmentLoadingException | ||
| { | ||
| try { | ||
| return new QueryableIndexSegment(INDEX_IO.loadIndex(parentDir, lazy), segment.getId()); | ||
| } | ||
| catch (IOException e) { | ||
| throw new SegmentLoadingException(e, "%s", e.getMessage()); | ||
| } | ||
| } | ||
| } | ||
| } |
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May be useful to add an
EqualsVerifiertest toIndexSpecTestfor this.