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server/src/main/java/org/opensearch/index/compositeindex/datacube/DimensionFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
||
| package org.opensearch.index.compositeindex.datacube; | ||
|
|
||
| import org.opensearch.common.Rounding; | ||
| import org.opensearch.common.annotation.ExperimentalApi; | ||
| import org.opensearch.common.xcontent.support.XContentMapValues; | ||
| import org.opensearch.index.compositeindex.datacube.startree.StarTreeIndexSettings; | ||
| import org.opensearch.index.mapper.DateFieldMapper; | ||
| import org.opensearch.index.mapper.Mapper; | ||
| import org.opensearch.index.mapper.NumberFieldMapper; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Locale; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| import static org.opensearch.index.compositeindex.datacube.DateDimension.CALENDAR_INTERVALS; | ||
|
|
||
| /** | ||
| * Dimension factory class mainly used to parse and create dimension from the mappings | ||
| * | ||
| * @opensearch.experimental | ||
| */ | ||
| @ExperimentalApi | ||
| public class DimensionFactory { | ||
| public static Dimension parseAndCreateDimension( | ||
| String name, | ||
| String type, | ||
| Map<String, Object> dimensionMap, | ||
| Mapper.TypeParser.ParserContext c | ||
| ) { | ||
| switch (type) { | ||
| case DateDimension.DATE: | ||
| return parseAndCreateDateDimension(name, dimensionMap, c); | ||
| case NumericDimension.NUMERIC: | ||
| return new NumericDimension(name); | ||
| default: | ||
| throw new IllegalArgumentException( | ||
| String.format(Locale.ROOT, "unsupported field type associated with dimension [%s] as part of star tree field", name) | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| public static Dimension parseAndCreateDimension( | ||
| String name, | ||
| Mapper.Builder builder, | ||
| Map<String, Object> dimensionMap, | ||
| Mapper.TypeParser.ParserContext c | ||
| ) { | ||
| if (builder instanceof DateFieldMapper.Builder) { | ||
| return parseAndCreateDateDimension(name, dimensionMap, c); | ||
| } else if (builder instanceof NumberFieldMapper.Builder) { | ||
| return new NumericDimension(name); | ||
| } | ||
| throw new IllegalArgumentException( | ||
| String.format(Locale.ROOT, "unsupported field type associated with star tree dimension [%s]", name) | ||
| ); | ||
| } | ||
|
|
||
| private static DateDimension parseAndCreateDateDimension( | ||
| String name, | ||
| Map<String, Object> dimensionMap, | ||
| Mapper.TypeParser.ParserContext c | ||
| ) { | ||
| List<Rounding.DateTimeUnit> calendarIntervals = new ArrayList<>(); | ||
| List<String> intervalStrings = XContentMapValues.extractRawValues(CALENDAR_INTERVALS, dimensionMap) | ||
| .stream() | ||
| .map(Object::toString) | ||
| .collect(Collectors.toList()); | ||
| if (intervalStrings == null || intervalStrings.isEmpty()) { | ||
| calendarIntervals = StarTreeIndexSettings.DEFAULT_DATE_INTERVALS.get(c.getSettings()); | ||
| } else { | ||
| if (intervalStrings.size() > StarTreeIndexSettings.STAR_TREE_MAX_DATE_INTERVALS_SETTING.get(c.getSettings())) { | ||
| throw new IllegalArgumentException( | ||
| String.format( | ||
| Locale.ROOT, | ||
| "At most [%s] calendar intervals are allowed in dimension [%s]", | ||
| StarTreeIndexSettings.STAR_TREE_MAX_DATE_INTERVALS_SETTING.get(c.getSettings()), | ||
| name | ||
| ) | ||
| ); | ||
| } | ||
| for (String interval : intervalStrings) { | ||
| calendarIntervals.add(StarTreeIndexSettings.getTimeUnit(interval)); | ||
| } | ||
| calendarIntervals = new ArrayList<>(calendarIntervals); | ||
| } | ||
| dimensionMap.remove(CALENDAR_INTERVALS); | ||
| return new DateDimension(name, calendarIntervals); | ||
| } | ||
| } |
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