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Adapt to changes in entity creation metadata APIs in Spring Data Commons.

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This commit is contained in:
Oliver Drotbohm
2022-02-15 15:48:41 +01:00
parent 25b15eb98b
commit 95bc8645fd
2 changed files with 1 additions and 102 deletions
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102
src/main/java/org/springframework/data/keyvalue/repository/support/DtoInstantiatingConverter.java
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@@ -1,102 +0,0 @@
/*
* Copyright 2021 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.data.keyvalue.repository.support;
import org.springframework.core.convert.converter.Converter;
import org.springframework.data.mapping.PersistentEntity;
import org.springframework.data.mapping.PersistentProperty;
import org.springframework.data.mapping.PersistentPropertyAccessor;
import org.springframework.data.mapping.PreferredConstructor;
import org.springframework.data.mapping.PreferredConstructor.Parameter;
import org.springframework.data.mapping.SimplePropertyHandler;
import org.springframework.data.mapping.context.MappingContext;
import org.springframework.data.mapping.model.EntityInstantiator;
import org.springframework.data.mapping.model.EntityInstantiators;
import org.springframework.data.mapping.model.ParameterValueProvider;
import org.springframework.util.Assert;
/**
* {@link Converter} to instantiate DTOs from fully equipped domain objects.
*
* @author Mark Paluch
* @since 2.6
*/
class DtoInstantiatingConverter implements Converter<Object, Object> {
private final Class<?> targetType;
private final MappingContext<? extends PersistentEntity<?, ?>, ? extends PersistentProperty<?>> context;
private final EntityInstantiator instantiator;
/**
* Creates a new {@link Converter} to instantiate DTOs.
*
* @param dtoType must not be {@literal null}.
* @param context must not be {@literal null}.
* @param entityInstantiators must not be {@literal null}.
*/
public DtoInstantiatingConverter(Class<?> dtoType,
MappingContext<? extends PersistentEntity<?, ?>, ? extends PersistentProperty<?>> context,
EntityInstantiators entityInstantiators) {
Assert.notNull(dtoType, "DTO type must not be null!");
Assert.notNull(context, "MappingContext must not be null!");
Assert.notNull(entityInstantiators, "EntityInstantiators must not be null!");
this.targetType = dtoType;
this.context = context;
this.instantiator = entityInstantiators.getInstantiatorFor(context.getRequiredPersistentEntity(dtoType));
}
/*
* (non-Javadoc)
* @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
*/
@Override
@SuppressWarnings({ "rawtypes", "unchecked" })
public Object convert(Object source) {
if (targetType.isInterface()) {
return source;
}
PersistentEntity<?, ?> sourceEntity = context.getRequiredPersistentEntity(source.getClass());
PersistentPropertyAccessor<?> sourceAccessor = sourceEntity.getPropertyAccessor(source);
PersistentEntity<?, ?> targetEntity = context.getRequiredPersistentEntity(targetType);
PreferredConstructor<?, ? extends PersistentProperty<?>> constructor = targetEntity.getPersistenceConstructor();
Object dto = instantiator.createInstance(targetEntity, new ParameterValueProvider() {
@Override
public Object getParameterValue(Parameter parameter) {
return sourceAccessor.getProperty(sourceEntity.getPersistentProperty(parameter.getName()));
}
});
PersistentPropertyAccessor<?> dtoAccessor = targetEntity.getPropertyAccessor(dto);
targetEntity.doWithProperties((SimplePropertyHandler) property -> {
if (constructor.isConstructorParameter(property)) {
return;
}
dtoAccessor.setProperty(property,
sourceAccessor.getProperty(sourceEntity.getPersistentProperty(property.getName())));
});
return dto;
}
}

1
src/main/java/org/springframework/data/keyvalue/repository/support/QuerydslKeyValuePredicateExecutor.java
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@@ -27,6 +27,7 @@ import java.util.function.Supplier;
import java.util.stream.Stream;
import org.springframework.dao.IncorrectResultSizeDataAccessException;
import org.springframework.data.convert.DtoInstantiatingConverter;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.Pageable;