org.springframework.data.rest.webmvc.mapping.NestedLinkCollectingAssociationHandler Maven / Gradle / Ivy
// Generated by delombok at Tue Aug 11 12:51:25 CEST 2020
/*
* Copyright 2016-2021 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.rest.webmvc.mapping;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.springframework.data.mapping.Association;
import org.springframework.data.mapping.IdentifierAccessor;
import org.springframework.data.mapping.PersistentEntity;
import org.springframework.data.mapping.PersistentProperty;
import org.springframework.data.mapping.PersistentPropertyAccessor;
import org.springframework.data.mapping.SimpleAssociationHandler;
import org.springframework.data.mapping.context.PersistentEntities;
import org.springframework.data.rest.core.mapping.ResourceMapping;
import org.springframework.data.rest.core.mapping.ResourceMappings;
import org.springframework.data.rest.core.mapping.ResourceMetadata;
import org.springframework.hateoas.Link;
import org.springframework.hateoas.server.EntityLinks;
/**
* @author Oliver Gierke
* @deprecated no replacement, internal usage only. For removal in 3.5
* @see LinkCollector
*/
@Deprecated
public class NestedLinkCollectingAssociationHandler implements SimpleAssociationHandler {
private final EntityLinks entityLinks;
private final PersistentEntities entities;
private final PersistentPropertyAccessor accessor;
private final ResourceMappings mappings;
private final List links = new ArrayList();
public NestedLinkCollectingAssociationHandler(final EntityLinks entityLinks, final PersistentEntities entities,
final PersistentPropertyAccessor accessor, final ResourceMappings mappings) {
this.entityLinks = entityLinks;
this.entities = entities;
this.accessor = accessor;
this.mappings = mappings;
}
public List getLinks() {
return this.links;
}
/*
* (non-Javadoc)
* @see org.springframework.data.mapping.SimpleAssociationHandler#doWithAssociation(org.springframework.data.mapping.Association)
*/
@Override
public void doWithAssociation(Association> association) {
PersistentProperty property = association.getInverse();
Object propertyValue = accessor.getProperty(property);
ResourceMetadata metadata = mappings.getMetadataFor(property.getOwner().getType());
ResourceMapping propertyMapping = metadata.getMappingFor(property);
if (property.isCollectionLike()) {
for (Object element : (Collection) propertyValue) {
PersistentEntity entity = entities.getRequiredPersistentEntity(element.getClass());
IdentifierAccessor identifierAccessor = entity.getIdentifierAccessor(element);
links.add(entityLinks.linkForItemResource(element.getClass(), identifierAccessor.getIdentifier())
.withRel(propertyMapping.getRel()));
}
} else {
PersistentEntity entity = entities.getRequiredPersistentEntity(propertyValue.getClass());
IdentifierAccessor identifierAccessor = entity.getIdentifierAccessor(propertyValue);
links.add(entityLinks.linkForItemResource(propertyValue.getClass(), identifierAccessor.getIdentifier())
.withRel(propertyMapping.getRel()));
}
}
}