MongoTemplateParser.java

/*
 * Copyright 2011-present 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.mongodb.config;

import static org.springframework.data.config.ParsingUtils.*;
import static org.springframework.data.mongodb.config.MongoParsingUtils.*;

import org.jspecify.annotations.NullUnmarked;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.data.config.BeanComponentDefinitionBuilder;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;

/**
 * {@link BeanDefinitionParser} to parse {@code template} elements into {@link BeanDefinition}s.
 *
 * @author Martin Baumgartner
 * @author Oliver Gierke
 */
@NullUnmarked
class MongoTemplateParser extends AbstractBeanDefinitionParser {

	@Override
	protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
			throws BeanDefinitionStoreException {

		String id = super.resolveId(element, definition, parserContext);
		return StringUtils.hasText(id) ? id : BeanNames.MONGO_TEMPLATE_BEAN_NAME;
	}

	@Override
	protected AbstractBeanDefinition parseInternal(Element element, ParserContext parserContext) {

		BeanComponentDefinitionBuilder helper = new BeanComponentDefinitionBuilder(element, parserContext);

		String converterRef = element.getAttribute("converter-ref");
		String dbFactoryRef = element.getAttribute("db-factory-ref");

		BeanDefinitionBuilder mongoTemplateBuilder = BeanDefinitionBuilder.genericBeanDefinition(MongoTemplate.class);
		setPropertyValue(mongoTemplateBuilder, element, "write-concern", "writeConcern");

		if (StringUtils.hasText(dbFactoryRef)) {
			mongoTemplateBuilder.addConstructorArgReference(dbFactoryRef);
		} else {
			mongoTemplateBuilder.addConstructorArgReference(BeanNames.DB_FACTORY_BEAN_NAME);
		}

		if (StringUtils.hasText(converterRef)) {
			mongoTemplateBuilder.addConstructorArgReference(converterRef);
		}

		BeanDefinitionBuilder writeConcernPropertyEditorBuilder = getWriteConcernPropertyEditorBuilder();

		BeanComponentDefinition component = helper.getComponent(writeConcernPropertyEditorBuilder);
		parserContext.registerBeanComponent(component);

		return (AbstractBeanDefinition) helper.getComponentIdButFallback(mongoTemplateBuilder,
				BeanNames.MONGO_TEMPLATE_BEAN_NAME).getBeanDefinition();
	}
}