Java tutorial
/* * Copyright 2012-2018 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.boot.autoconfigure.influx; import okhttp3.OkHttpClient; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.influxdb.InfluxDB; import org.influxdb.impl.InfluxDBImpl; import org.springframework.beans.factory.ObjectProvider; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty; import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; /** * {@link EnableAutoConfiguration Auto-configuration} for InfluxDB. * * @author Sergey Kuptsov * @author Stephane Nicoll * @author Edd Melndez * @since 2.0.0 */ @Configuration @ConditionalOnClass(InfluxDB.class) @EnableConfigurationProperties(InfluxDbProperties.class) public class InfluxDbAutoConfiguration { private static final Log logger = LogFactory.getLog(InfluxDbAutoConfiguration.class); private final InfluxDbProperties properties; private final OkHttpClient.Builder builder; public InfluxDbAutoConfiguration(InfluxDbProperties properties, ObjectProvider<InfluxDbOkHttpClientBuilderProvider> builder, ObjectProvider<OkHttpClient.Builder> deprecatedBuilder) { this.properties = properties; this.builder = determineBuilder(builder.getIfAvailable(), deprecatedBuilder.getIfAvailable()); } @Deprecated private static OkHttpClient.Builder determineBuilder(InfluxDbOkHttpClientBuilderProvider builder, OkHttpClient.Builder deprecatedBuilder) { if (builder != null) { return builder.get(); } else if (deprecatedBuilder != null) { logger.warn("InfluxDB client customizations using a OkHttpClient.Builder is deprecated, register a " + InfluxDbOkHttpClientBuilderProvider.class.getSimpleName() + " bean instead"); return deprecatedBuilder; } return new OkHttpClient.Builder(); } @Bean @ConditionalOnMissingBean @ConditionalOnProperty("spring.influx.url") public InfluxDB influxDb() { return new InfluxDBImpl(this.properties.getUrl(), this.properties.getUser(), this.properties.getPassword(), this.builder); } }