/*
* Copyright 2013 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
*
* http://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.elasticsearch.repository.support;
import java.io.Serializable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentEntity;
import org.springframework.data.elasticsearch.core.mapping.ElasticsearchPersistentProperty;
import org.springframework.data.mapping.model.BeanWrapper;
import org.springframework.data.repository.core.support.AbstractEntityInformation;
import org.springframework.util.Assert;
/**
* Elasticsearch specific implementation of
* {@link org.springframework.data.repository.core.support.AbstractEntityInformation}
*
* @param <T>
* @param <ID>
* @author Rizwan Idrees
* @author Mohsin Husen
* @author Ryan Henszey
*/
public class MappingElasticsearchEntityInformation<T, ID extends Serializable> extends AbstractEntityInformation<T, ID>
implements ElasticsearchEntityInformation<T, ID> {
private static final Logger logger = LoggerFactory.getLogger(MappingElasticsearchEntityInformation.class);
private final ElasticsearchPersistentEntity<T> entityMetadata;
private final String indexName;
private final String type;
private Class<?> idClass;
public MappingElasticsearchEntityInformation(ElasticsearchPersistentEntity<T> entity) {
this(entity, null, null);
}
public MappingElasticsearchEntityInformation(ElasticsearchPersistentEntity<T> entity, String indexName, String type) {
super(entity.getType());
this.entityMetadata = entity;
this.indexName = indexName;
this.type = type;
this.idClass = entity.getIdProperty().getType();
}
@SuppressWarnings("unchecked")
@Override
public ID getId(T entity) {
ElasticsearchPersistentProperty id = entityMetadata.getIdProperty();
try {
return (ID) BeanWrapper.create(entity, null).getProperty(id);
} catch (Exception e) {
throw new IllegalStateException("ID could not be resolved", e);
}
}
@SuppressWarnings("unchecked")
@Override
public Class<ID> getIdType() {
return (Class<ID>) idClass;
}
@Override
public String getIdAttribute() {
Assert.notNull(entityMetadata.getIdProperty(), "Unable to identify 'id' property in class "
+ entityMetadata.getType().getSimpleName()
+ ". Make sure the 'id' property is annotated with @Id or named as 'id' or 'documentId' ");
return entityMetadata.getIdProperty().getFieldName();
}
@Override
public String getIndexName() {
return indexName != null ? indexName : entityMetadata.getIndexName();
}
@Override
public String getType() {
return type != null ? type : entityMetadata.getIndexType();
}
@Override
public Long getVersion(T entity) {
ElasticsearchPersistentProperty versionProperty = entityMetadata.getVersionProperty();
try {
if (versionProperty != null) {
return (Long) BeanWrapper.create(entity, null).getProperty(versionProperty);
}
} catch (Exception e) {
throw new IllegalStateException("failed to load version field", e);
}
return null;
}
@Override
public String getParentId(T entity) {
ElasticsearchPersistentProperty parentProperty = entityMetadata.getParentIdProperty();
try {
if (parentProperty != null) {
return (String) BeanWrapper.create(entity, null).getProperty(parentProperty);
}
} catch (Exception e) {
throw new IllegalStateException("failed to load parent ID: " + e, e);
}
return null;
}
}