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Module contains external API of the evitaDB.
The newest version!
/*
*
* _ _ ____ ____
* _____ _(_) |_ __ _| _ \| __ )
* / _ \ \ / / | __/ _` | | | | _ \
* | __/\ V /| | || (_| | |_| | |_) |
* \___| \_/ |_|\__\__,_|____/|____/
*
* Copyright (c) 2023-2024
*
* 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.builder;
import io.evitadb.api.exception.InvalidSchemaMutationException;
import io.evitadb.api.requestResponse.data.Versioned;
import io.evitadb.api.requestResponse.schema.AttributeSchemaContract;
import io.evitadb.api.requestResponse.schema.AttributeSchemaEditor;
import io.evitadb.api.requestResponse.schema.CatalogSchemaContract;
import io.evitadb.api.requestResponse.schema.EntitySchemaContract;
import io.evitadb.api.requestResponse.schema.dto.AttributeUniquenessType;
import io.evitadb.api.requestResponse.schema.mutation.AttributeSchemaMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.ModifyAttributeSchemaDefaultValueMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.ModifyAttributeSchemaDeprecationNoticeMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.ModifyAttributeSchemaDescriptionMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.ModifyAttributeSchemaTypeMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.SetAttributeSchemaFilterableMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.SetAttributeSchemaLocalizedMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.SetAttributeSchemaNullableMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.SetAttributeSchemaSortableMutation;
import io.evitadb.api.requestResponse.schema.mutation.attribute.SetAttributeSchemaUniqueMutation;
import io.evitadb.dataType.EvitaDataTypes;
import io.evitadb.dataType.Predecessor;
import io.evitadb.dataType.ReferencedEntityPredecessor;
import io.evitadb.exception.GenericEvitaInternalError;
import io.evitadb.utils.Assert;
import io.evitadb.utils.ReflectionLookup;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.io.Serial;
import java.io.Serializable;
import java.util.Currency;
import java.util.List;
import java.util.Locale;
import java.util.function.BooleanSupplier;
/**
* Abstract parent for builders that produce {@link AttributeSchemaContract} or its extensions.
*
* @author Jan Novotný ([email protected]), FG Forrest a.s. (c) 2021
*/
@SuppressWarnings("unchecked")
public abstract sealed class AbstractAttributeSchemaBuilder, S extends AttributeSchemaContract>
implements AttributeSchemaEditor, InternalSchemaBuilderHelper
permits AttributeSchemaBuilder, EntityAttributeSchemaBuilder, GlobalAttributeSchemaBuilder {
@Serial private static final long serialVersionUID = -1519084392486171781L;
protected final S baseSchema;
protected final CatalogSchemaContract catalogSchema;
protected final EntitySchemaContract entitySchema;
protected MutationImpact updatedSchemaDirty = MutationImpact.NO_IMPACT;
protected S updatedSchema;
private int lastMutationReflectedInSchema = 0;
AbstractAttributeSchemaBuilder(
@Nullable CatalogSchemaContract catalogSchema,
@Nullable EntitySchemaContract entitySchema,
@Nonnull S existingSchema
) {
Assert.isTrue(
EvitaDataTypes.isSupportedTypeOrItsArray(existingSchema.getType()),
"Data type " + existingSchema.getType().getName() + " is not supported."
);
Assert.isTrue(catalogSchema != null || entitySchema != null, "Either catalog name or entity type must be present!");
Assert.isTrue(!(catalogSchema != null && entitySchema != null), "Either catalog name or entity type must be present, but not both!");
this.catalogSchema = catalogSchema;
this.entitySchema = entitySchema;
this.baseSchema = existingSchema;
}
@Override
@Nonnull
public T withDefaultValue(
@Nullable Serializable defaultValue) {
if (defaultValue != null) {
final Class wrappedForm = EvitaDataTypes.toWrappedForm(defaultValue.getClass());
final S currentSchema = toInstance();
final Class expectedType = currentSchema.getType();
Assert.isTrue(
expectedType.equals(wrappedForm),
"Passed default value doesn't match the type `" + expectedType + "`!"
);
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new ModifyAttributeSchemaDefaultValueMutation(
baseSchema.getName(),
EvitaDataTypes.toTargetType(defaultValue, wrappedForm, currentSchema.getIndexedDecimalPlaces())
)
)
);
} else {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new ModifyAttributeSchemaDefaultValueMutation(
baseSchema.getName(),
null
)
)
);
}
return (T) this;
}
@Override
@Nonnull
public T filterable() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaFilterableMutation(
baseSchema.getName(),
true
)
)
);
return (T) this;
}
@Override
@Nonnull
public T filterable(@Nonnull BooleanSupplier decider) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaFilterableMutation(
baseSchema.getName(),
decider.getAsBoolean()
)
)
);
return (T) this;
}
@Override
@Nonnull
public T unique() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaUniqueMutation(
baseSchema.getName(),
AttributeUniquenessType.UNIQUE_WITHIN_COLLECTION
)
)
);
return (T) this;
}
@Override
@Nonnull
public T uniqueWithinLocale() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaUniqueMutation(
baseSchema.getName(),
AttributeUniquenessType.UNIQUE_WITHIN_COLLECTION_LOCALE
)
)
);
return (T) this;
}
@Override
@Nonnull
public T unique(@Nonnull BooleanSupplier decider) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaUniqueMutation(
baseSchema.getName(),
decider.getAsBoolean() ?
AttributeUniquenessType.UNIQUE_WITHIN_COLLECTION : AttributeUniquenessType.NOT_UNIQUE
)
)
);
return (T) this;
}
@Override
@Nonnull
public T uniqueWithinLocale(@Nonnull BooleanSupplier decider) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaUniqueMutation(
baseSchema.getName(),
decider.getAsBoolean() ?
AttributeUniquenessType.UNIQUE_WITHIN_COLLECTION_LOCALE : AttributeUniquenessType.NOT_UNIQUE
)
)
);
return (T) this;
}
@Override
@Nonnull
public T sortable() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaSortableMutation(
baseSchema.getName(),
true
)
)
);
return (T) this;
}
@Override
@Nonnull
public T sortable(@Nonnull BooleanSupplier decider) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaSortableMutation(
baseSchema.getName(),
decider.getAsBoolean()
)
)
);
return (T) this;
}
@Override
@Nonnull
public T localized() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaLocalizedMutation(
baseSchema.getName(),
true
)
)
);
return (T) this;
}
@Override
@Nonnull
public T localized(@Nonnull BooleanSupplier decider) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaLocalizedMutation(
baseSchema.getName(),
decider.getAsBoolean()
)
)
);
return (T) this;
}
@Override
@Nonnull
public T nullable() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaNullableMutation(
baseSchema.getName(),
true
)
)
);
return (T) this;
}
@Nonnull
@Override
public T nullable(@Nonnull BooleanSupplier decider) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new SetAttributeSchemaNullableMutation(
baseSchema.getName(),
decider.getAsBoolean()
)
)
);
return (T) this;
}
@Override
@Nonnull
public T indexDecimalPlaces(int indexedDecimalPlaces) {
//noinspection rawtypes
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new ModifyAttributeSchemaTypeMutation(
baseSchema.getName(),
toAttributeMutation().stream()
.filter(it -> it instanceof ModifyAttributeSchemaTypeMutation)
.map(it -> ((ModifyAttributeSchemaTypeMutation) it).getType())
.findFirst()
.orElseGet(() -> (Class) baseSchema.getType()),
indexedDecimalPlaces
)
)
);
return (T) this;
}
@Override
@Nonnull
public T withDescription(@Nullable String description) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new ModifyAttributeSchemaDescriptionMutation(
baseSchema.getName(),
description
)
)
);
return (T) this;
}
@Override
@Nonnull
public T deprecated(@Nonnull String deprecationNotice) {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new ModifyAttributeSchemaDeprecationNoticeMutation(
baseSchema.getName(),
deprecationNotice
)
)
);
return (T) this;
}
@Override
@Nonnull
public T notDeprecatedAnymore() {
this.updatedSchemaDirty = updateMutationImpact(
this.updatedSchemaDirty,
addMutations(
new ModifyAttributeSchemaDeprecationNoticeMutation(
baseSchema.getName(),
null
)
)
);
return (T) this;
}
/**
* Creates attribute schema instance.
*/
@Nonnull
public S toInstance() {
if (this.updatedSchema == null || this.updatedSchemaDirty != MutationImpact.NO_IMPACT) {
// if the dirty flat is set to modified previous we need to start from the base schema again
// and reapply all mutations
if (this.updatedSchemaDirty == MutationImpact.MODIFIED_PREVIOUS) {
this.lastMutationReflectedInSchema = 0;
}
// if the last mutation reflected in the schema is zero we need to start from the base schema
// else we can continue modification last known updated schema by adding additional mutations
S currentSchema = this.lastMutationReflectedInSchema == 0 ?
this.baseSchema : this.updatedSchema;
final List attributeMutations = toAttributeMutation();
// apply the mutations not reflected in the schema
for (int i = lastMutationReflectedInSchema; i < attributeMutations.size(); i++) {
final AttributeSchemaMutation mutation = attributeMutations.get(i);
currentSchema = mutation.mutate(null, currentSchema, getAttributeSchemaType());
if (currentSchema == null) {
throw new GenericEvitaInternalError("Attribute unexpectedly removed from inside!");
}
}
validate(currentSchema);
this.updatedSchema = currentSchema;
this.updatedSchemaDirty = MutationImpact.NO_IMPACT;
this.lastMutationReflectedInSchema = attributeMutations.size();
}
return this.updatedSchema;
}
/**
* Returns the type of the attribute this builder builds.
*/
protected abstract Class getAttributeSchemaType();
/**
* Method allows adding specific mutation on the fly.
*/
protected abstract MutationImpact addMutations(@Nonnull AttributeSchemaMutation mutation);
/**
* Returns collection of {@link AttributeSchemaMutation} instances describing what changes occurred in the builder
* and which should be applied on the existing parent schema in particular version.
* Each mutation increases {@link Versioned#version()} of the modified object and allows to detect race
* conditions based on "optimistic locking" mechanism in very granular way.
*/
@Nonnull
protected abstract List toAttributeMutation();
/**
* Method validates the consistency of an attribute schema.
* It basically checks the compatibility of the data type for filter/unique/sort index purposes.
*/
private void validate(@Nonnull S currentSchema) {
final Class plainType = ReflectionLookup.getSimpleType(currentSchema.getType());
Assert.isTrue(
!currentSchema.isSortable() ||
plainType.isPrimitive() ||
Comparable.class.isAssignableFrom(plainType) ||
Predecessor.class.isAssignableFrom(plainType) ||
ReferencedEntityPredecessor.class.isAssignableFrom(plainType),
() -> new InvalidSchemaMutationException("Data type `" + currentSchema.getType() + "` in attribute schema `" + currentSchema.getName() + "` must implement Comparable (or must be Predecessor/ReferencedEntityPredecessor) in order to be usable for sort index!")
);
Assert.isTrue(
!(currentSchema.isSortable() && currentSchema.getType().isArray()),
() -> new InvalidSchemaMutationException("Attribute `" + currentSchema.getName() + "` is sortable but also an array. Arrays cannot be handled by sorting algorithm!")
);
Assert.isTrue(
!(currentSchema.isFilterable() || currentSchema.isUnique()) ||
plainType.isPrimitive() ||
Comparable.class.isAssignableFrom(plainType) ||
Currency.class.isAssignableFrom(plainType) ||
Locale.class.isAssignableFrom(plainType),
() -> new InvalidSchemaMutationException("Data type `" + currentSchema.getType() + "` in attribute schema `" + currentSchema.getName() + "` must implement Comparable in order to be usable for filter / unique index!")
);
Assert.isTrue(
!(currentSchema.isFilterable() && currentSchema.isUnique()),
() -> new InvalidSchemaMutationException("Attribute `" + currentSchema.getName() + "` cannot be both unique and filterable. Unique attributes are implicitly filterable!")
);
}
}