/*
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* Copyright [2020-2030] [https://www.stylefeng.cn]
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
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*
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* 1.请不要删除和修改根目录下的LICENSE文件。
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* 2.请不要删除和修改Guns源码头部的版权声明。
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* 3.请保留源码和相关描述文件的项目出处，作者声明等。
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* 4.分发源码时候，请注明软件出处 https://gitee.com/stylefeng/guns
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* 5.在修改包名，模块名称，项目代码等时，请注明软件出处 https://gitee.com/stylefeng/guns
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*/
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package cn.stylefeng.roses.kernel.dsctn.context;
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import cn.stylefeng.roses.kernel.db.api.factory.DruidDatasourceFactory;
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import cn.stylefeng.roses.kernel.db.api.pojo.druid.DruidProperties;
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import cn.stylefeng.roses.kernel.dsctn.persist.DataBaseInfoPersistence;
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import com.alibaba.druid.pool.DruidDataSource;
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import javax.sql.DataSource;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import static cn.stylefeng.roses.kernel.dsctn.api.constants.DatasourceContainerConstants.MASTER_DATASOURCE_NAME;
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/**
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* 存放数据源容和数据源配置的容器
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*
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* @author fengshuonan
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* @date 2020/10/31 23:40
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*/
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public class DataSourceContext {
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/**
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* 数据源容器
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* <p>
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* key是数据源名称
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*/
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private static final Map<String, DataSource> DATA_SOURCES = new ConcurrentHashMap<>();
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/**
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* 数据源的配置容器
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* <p>
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* key是数据源名称
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*/
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private static Map<String, DruidProperties> DATA_SOURCES_CONF = new ConcurrentHashMap<>();
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/**
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* 初始化所有dataSource
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*
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* @author fengshuonan
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* @date 2020/10/31 23:40
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*/
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public static void initDataSource(DruidProperties masterDataSourceProperties, DataSource dataSourcePrimary) {
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// 清空数据库中的主数据源信息
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new DataBaseInfoPersistence(masterDataSourceProperties).deleteMasterDatabaseInfo();
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// 初始化主数据源信息
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new DataBaseInfoPersistence(masterDataSourceProperties).createMasterDatabaseInfo();
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// 从数据库中获取所有的数据源信息
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DataBaseInfoPersistence dataBaseInfoDao = new DataBaseInfoPersistence(masterDataSourceProperties);
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Map<String, DruidProperties> allDataBaseInfo = dataBaseInfoDao.getAllDataBaseInfo();
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// 赋给全局变量
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DATA_SOURCES_CONF = allDataBaseInfo;
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// 根据数据源信息初始化所有的DataSource
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for (Map.Entry<String, DruidProperties> entry : allDataBaseInfo.entrySet()) {
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String dbName = entry.getKey();
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DruidProperties druidProperties = entry.getValue();
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// 如果是主数据源，不用初始化第二遍，如果是其他数据源就通过property初始化
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if (dbName.equalsIgnoreCase(MASTER_DATASOURCE_NAME)) {
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DATA_SOURCES_CONF.put(dbName, druidProperties);
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DATA_SOURCES.put(dbName, dataSourcePrimary);
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} else {
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DataSource dataSource = createDataSource(dbName, druidProperties);
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DATA_SOURCES.put(dbName, dataSource);
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}
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}
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}
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/**
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* 新增数据源到容器中
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*
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* @author fengshuonan
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* @date 2020/10/31 23:40
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*/
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public static void addDataSource(String dbName, DataSource dataSource, DruidProperties druidProperties) {
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DATA_SOURCES.put(dbName, dataSource);
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DATA_SOURCES_CONF.put(dbName, druidProperties);
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}
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/**
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* 获取所有数据源
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*
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* @author fengshuonan
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* @date 2020/10/31 23:42
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*/
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public static Map<String, DataSource> getDataSources() {
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return DATA_SOURCES;
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}
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/**
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* 获取数据源的配置
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*
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* @author fengshuonan
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* @date 2020/10/31 23:42
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*/
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public static Map<String, DruidProperties> getDataSourcesConfs() {
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return DATA_SOURCES_CONF;
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}
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/**
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* 删除容器中的数据源
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*
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* @author fengshuonan
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* @date 2020/10/31 23:44
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*/
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public static void removeDataSource(String dataSourceName) {
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// 先关闭掉数据源
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DataSource dataSource = DATA_SOURCES.get(dataSourceName);
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if (dataSource instanceof DruidDataSource) {
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((DruidDataSource) dataSource).close();
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}
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// 从容器中删除数据源
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DATA_SOURCES.remove(dataSourceName);
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// 多数据源配置中也删除
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DATA_SOURCES_CONF.remove(dataSourceName);
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}
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/**
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* 创建数据源，但是不添加到容器中
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*
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* @author fengshuonan
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* @date 2020/10/31 23:43
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*/
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private static DataSource createDataSource(String dataSourceName, DruidProperties druidProperties) {
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//添加到全局配置里
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DATA_SOURCES_CONF.put(dataSourceName, druidProperties);
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return DruidDatasourceFactory.createDruidDataSource(druidProperties);
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}
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}
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