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Merge pull request #369 from FgForrest/363-reference-attributes-are-r…
…eturned-when-referencecontentall-is-used #363 reference attributes are returned when referencecontentall is used
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87 changes: 87 additions & 0 deletions
87
...ngine/src/main/java/io/evitadb/core/query/sort/primaryKey/TranslatedPrimaryKeySorter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| /* | ||
| * | ||
| * _ _ ____ ____ | ||
| * _____ _(_) |_ __ _| _ \| __ ) | ||
| * / _ \ \ / / | __/ _` | | | | _ \ | ||
| * | __/\ V /| | || (_| | |_| | |_) | | ||
| * \___| \_/ |_|\__\__,_|____/|____/ | ||
| * | ||
| * Copyright (c) 2023 | ||
| * | ||
| * Licensed under the Business Source License, Version 1.1 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://github.com/FgForrest/evitaDB/blob/main/LICENSE | ||
| * | ||
| * 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. | ||
| */ | ||
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| package io.evitadb.core.query.sort.primaryKey; | ||
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| import io.evitadb.core.query.QueryContext; | ||
| import io.evitadb.core.query.algebra.Formula; | ||
| import io.evitadb.core.query.sort.Sorter; | ||
| import io.evitadb.index.bitmap.Bitmap; | ||
| import io.evitadb.utils.ArrayUtils; | ||
| import lombok.AccessLevel; | ||
| import lombok.NoArgsConstructor; | ||
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| import javax.annotation.Nonnull; | ||
| import javax.annotation.Nullable; | ||
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| /** | ||
| * This sorter sorts translated primary keys according to original primary keys in ascending order. It is used with | ||
| * the special implementation in case the entity is not known in the query. In such case the primary keys are translated | ||
| * different ids and those ids are translated back at the end of the query. Unfortunately the order of the translated | ||
| * keys might be different than the original order of the primary keys, so we need to sort them here according to | ||
| * their original primary keys order in ascending fashion. | ||
| * | ||
| * @author Jan Novotný (novotny@fg.cz), FG Forrest a.s. (c) 2023 | ||
| */ | ||
| @NoArgsConstructor(access = AccessLevel.PRIVATE) | ||
| public class TranslatedPrimaryKeySorter implements Sorter { | ||
| public static final Sorter INSTANCE = new TranslatedPrimaryKeySorter(); | ||
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| @Nonnull | ||
| @Override | ||
| public Sorter cloneInstance() { | ||
| return INSTANCE; | ||
| } | ||
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| @Nonnull | ||
| @Override | ||
| public Sorter andThen(Sorter sorterForUnknownRecords) { | ||
| return INSTANCE; | ||
| } | ||
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| @Nullable | ||
| @Override | ||
| public Sorter getNextSorter() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public int sortAndSlice(@Nonnull QueryContext queryContext, @Nonnull Formula input, int startIndex, int endIndex, @Nonnull int[] result, int peak) { | ||
| final Bitmap translatedPrimaryKeysBitmap = input.compute(); | ||
| final int[] translatedPrimaryKeys = translatedPrimaryKeysBitmap.getArray(); | ||
| final int[] originalPrimaryKeys = translatedPrimaryKeysBitmap.stream().map(queryContext::translateToEntityPrimaryKey).toArray(); | ||
| // initialize order array | ||
| final int[] order = new int[originalPrimaryKeys.length]; | ||
| for (int i = 0; i < order.length; i++) { | ||
| order[i] = i; | ||
| } | ||
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| ArrayUtils.sortSecondAlongFirstArray(originalPrimaryKeys, order); | ||
| final int length = endIndex - startIndex; | ||
| for (int i = peak; i < translatedPrimaryKeys.length && i < length; i++) { | ||
| result[i] = translatedPrimaryKeys[order[i]]; | ||
| } | ||
| return peak + Math.min(translatedPrimaryKeys.length, length); | ||
| } | ||
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| } |
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