spring MongoClientFactorySupport 源码

2022-08-12
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springboot MongoClientFactorySupport 代码

文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoClientFactorySupport.java

/*
 * Copyright 2012-2021 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.boot.autoconfigure.mongo;

import java.util.Collections;
import java.util.List;
import java.util.function.BiFunction;

import com.mongodb.MongoClientSettings;
import com.mongodb.MongoClientSettings.Builder;
import com.mongodb.MongoDriverInformation;

/**
 * Base class for setup that is common to MongoDB client factories.
 *
 * @param <T> the mongo client type
 * @author Christoph Strobl
 * @author Scott Frederick
 * @since 2.3.0
 */
public abstract class MongoClientFactorySupport<T> {

	private final List<MongoClientSettingsBuilderCustomizer> builderCustomizers;

	private final BiFunction<MongoClientSettings, MongoDriverInformation, T> clientCreator;

	protected MongoClientFactorySupport(List<MongoClientSettingsBuilderCustomizer> builderCustomizers,
			BiFunction<MongoClientSettings, MongoDriverInformation, T> clientCreator) {
		this.builderCustomizers = (builderCustomizers != null) ? builderCustomizers : Collections.emptyList();
		this.clientCreator = clientCreator;
	}

	public T createMongoClient(MongoClientSettings settings) {
		Builder targetSettings = MongoClientSettings.builder(settings);
		customize(targetSettings);
		return this.clientCreator.apply(targetSettings.build(), driverInformation());
	}

	private void customize(Builder builder) {
		for (MongoClientSettingsBuilderCustomizer customizer : this.builderCustomizers) {
			customizer.customize(builder);
		}
	}

	private MongoDriverInformation driverInformation() {
		return MongoDriverInformation.builder(MongoDriverInformation.builder().build()).driverName("spring-boot")
				.build();
	}

}

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所属分类： 后端技术
本文标签： Java Spring Spring Boot
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