sviolet.slate.common.x.net.loadbalance.springboot.autoconfig.HttpClientsConfig Maven / Gradle / Ivy

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Comprehensive Java library for spring framework (Java8+)
There is a newer version: 22.1.0
/*
 * Copyright (C) 2015-2018 S.Violet
 *
 * 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.
 *
 * Project GitHub: https://github.com/shepherdviolet/slate
 * Email: [email protected]
 */

package sviolet.slate.common.x.net.loadbalance.springboot.autoconfig;

import org.springframework.beans.factory.ObjectProvider;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import sviolet.slate.common.x.bean.mbrproc.EnableMemberProcessor;
import sviolet.slate.common.x.net.loadbalance.classic.DataConverter;
import sviolet.slate.common.x.net.loadbalance.classic.GsonDataConverter;
import sviolet.slate.common.x.net.loadbalance.springboot.autowired.HttpClientMemberProcessor;
import sviolet.slate.common.x.net.loadbalance.springboot.HttpClients;

import java.util.Map;

/**
 * HttpClients配置: 自动配置SimpleOkHttpClient
 * 配置前缀: slate.httpclients
 *
 * @author S.Violet
 */
@Configuration
@ConditionalOnExpression("${slate.httpclient.enabled:false}")
@EnableMemberProcessor(HttpClientMemberProcessor.class)//开启@HttpClient注解注入
public class HttpClientsConfig {

    /**
     * 自动配置HttpClients
     * 我们可以用如下方式获得所有客户端(包括运行时动态添加的):
     *
     *      *     private SimpleOkHttpClient client;
     *     @Autowired
     *     public Constructor(HttpClients httpClients) {
     *         this.client = httpClients.get("tagname");
     *     };
     * 
     */
    @Bean(HttpClients.HTTP_CLIENTS_NAME)
    @SuppressWarnings("SpringJavaInjectionPointsAutowiringInspection")
    public HttpClients httpClientsContainer(
            @Qualifier(SlatePropertiesForHttpClient.BEAN_NAME) SlatePropertiesForHttpClient slatePropertiesForHttpClient,
            ObjectProvider> dataConverterProvider) {

        //data converter
        DataConverter dataConverter = null;
        Map dataConverterMap = dataConverterProvider.getIfAvailable();
        if (dataConverterMap != null) {
            dataConverter = dataConverterMap.get(HttpClients.DATA_CONVERTER_NAME);
        }

        //impl
        return new HttpClientsImpl(slatePropertiesForHttpClient, dataConverter);
    }

    /**
     * 数据转换器(JavaBean -> JSON byte[])
     */
    @Bean(HttpClients.DATA_CONVERTER_NAME)
    @ConditionalOnClass(name = "com.google.gson.Gson")
    @ConditionalOnMissingBean(name = HttpClients.DATA_CONVERTER_NAME)
    public DataConverter httpClientsDataConverter(){
        //默认用GSON
        return new GsonDataConverter();
    }

}