io.evitadb.api.requestResponse.schema.mutation.reference.RemoveReferenceSchemaMutation Maven / Gradle / Ivy

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Module contains external API of the evitaDB.
There is a newer version: 2024.10.0
/*
 *
 *                         _ _        ____  ____
 *               _____   _(_) |_ __ _|  _ \| __ )
 *              / _ \ \ / / | __/ _` | | | |  _ \
 *             |  __/\ 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/master/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.
 */

package io.evitadb.api.requestResponse.schema.mutation.reference;

import io.evitadb.api.requestResponse.schema.CatalogSchemaContract;
import io.evitadb.api.requestResponse.schema.EntitySchemaContract;
import io.evitadb.api.requestResponse.schema.ReferenceSchemaContract;
import io.evitadb.api.requestResponse.schema.builder.InternalSchemaBuilderHelper.MutationCombinationResult;
import io.evitadb.api.requestResponse.schema.dto.EntitySchema;
import io.evitadb.api.requestResponse.schema.mutation.CombinableEntitySchemaMutation;
import io.evitadb.api.requestResponse.schema.mutation.EntitySchemaMutation;
import io.evitadb.api.requestResponse.schema.mutation.ReferenceSchemaMutation;
import io.evitadb.utils.Assert;
import lombok.AllArgsConstructor;
import lombok.EqualsAndHashCode;
import lombok.Getter;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.ThreadSafe;
import java.io.Serial;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Collectors;

/**
 * Mutation is responsible for removing an existing {@link ReferenceSchemaContract} in the
 * {@link EntitySchemaContract}.
 * Mutation can be used for altering also the existing {@link ReferenceSchemaContract} alone.
 * Mutation implements {@link CombinableEntitySchemaMutation} allowing to resolve conflicts with
 * {@link CreateReferenceSchemaMutation} mutation (if such is found in mutation pipeline).
 *
 * @author Jan Novotný ([email protected]), FG Forrest a.s. (c) 2022
 */
@ThreadSafe
@Immutable
@EqualsAndHashCode
@AllArgsConstructor
public class RemoveReferenceSchemaMutation implements ReferenceSchemaMutation, CombinableEntitySchemaMutation {
	@Serial private static final long serialVersionUID = -7746714314557968775L;
	@Getter @Nonnull private final String name;

	@Nullable
	@Override
	public MutationCombinationResult combineWith(@Nonnull CatalogSchemaContract currentCatalogSchema, @Nonnull EntitySchemaContract currentEntitySchema, @Nonnull EntitySchemaMutation existingMutation) {
		if (existingMutation instanceof ReferenceSchemaMutation referenceSchemaMutation && Objects.equals(name, referenceSchemaMutation.getName())) {
			return new MutationCombinationResult<>(true, null, this);
		} else {
			return null;
		}
	}

	@Nullable
	@Override
	public ReferenceSchemaContract mutate(@Nonnull EntitySchemaContract entitySchema, @Nullable ReferenceSchemaContract referenceSchema) {
		Assert.isPremiseValid(referenceSchema != null, "Reference schema is mandatory!");
		return null;
	}

	@Nullable
	@Override
	public EntitySchemaContract mutate(@Nonnull CatalogSchemaContract catalogSchema, @Nullable EntitySchemaContract entitySchema) {
		Assert.isPremiseValid(entitySchema != null, "Entity schema is mandatory!");
		final Optional existingReferenceSchema = entitySchema.getReference(name);
		if (existingReferenceSchema.isEmpty()) {
			// the reference schema was already removed - or just doesn't exist,
			// so we can simply return current schema
			return entitySchema;
		} else {
			return EntitySchema._internalBuild(
				entitySchema.version() + 1,
				entitySchema.getName(),
				entitySchema.getNameVariants(),
				entitySchema.getDescription(),
				entitySchema.getDeprecationNotice(),
				entitySchema.isWithGeneratedPrimaryKey(),
				entitySchema.isWithHierarchy(),
				entitySchema.isWithPrice(),
				entitySchema.getIndexedPricePlaces(),
				entitySchema.getLocales(),
				entitySchema.getCurrencies(),
				entitySchema.getAttributes(),
				entitySchema.getAssociatedData(),
				entitySchema.getReferences().values()
					.stream()
					.filter(it -> !it.getName().equals(name))
					.collect(
						Collectors.toMap(
							ReferenceSchemaContract::getName,
							Function.identity()
						)
					),
				entitySchema.getEvolutionMode(),
				entitySchema.getSortableAttributeCompounds()
			);
		}
	}

	@Override
	public String toString() {
		return "Remove entity reference schema: " +
			"name='" + name + '\'';
	}
}