CustomMapping.java

/*
 * Copyright 2020 Global Crop Diversity Trust
 *
 * 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.gringlobal.custom.elasticsearch;

import lombok.extern.slf4j.Slf4j;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.springframework.data.elasticsearch.ElasticsearchException;

import org.springframework.data.elasticsearch.core.convert.ElasticsearchConverter;

/**
 * Used to access the package-protected buildMapping functions.
 */
@Slf4j
public class CustomMapping {

	/**
	 * Spring data mapping.
	 *
	 * @param <T> the generic type
	 * @param clazz the clazz
	 * @param indexType the index type
	 * @return the object
	 */
	public static <T> Object springDataMapping(ElasticsearchConverter elasticsearchConverter, Class<T> clazz, String indexType) {
		XContentBuilder xContentBuilder = null;
		try {
			CustomMappingBuilder mappingBuilder = new CustomMappingBuilder(elasticsearchConverter);
			xContentBuilder = mappingBuilder.buildPropertyMapping(clazz, indexType, null);
		} catch (Exception e) {
			throw new ElasticsearchException("Failed to build mapping for " + clazz.getSimpleName(), e);
		}

		log.info("Mapping for class={}/{}: {}", clazz, indexType, xContentBuilder.getOutputStream().toString());

		return xContentBuilder;
	}
}