package com.ltkj.db;

import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;

import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;

public class DynamicDataSource extends AbstractRoutingDataSource {

    private final Map<Object, Object> targetDataSources = new HashMap<>(); // 存储所有数据源

    @Override
    protected Object determineCurrentLookupKey() {
        return DataSourceContextHolder.getDataSourceKey(); // 根据上下文获取当前数据源的键
    }

    // 添加目标数据源
    public void addTargetDataSource(String key, DataSource dataSource) {
        targetDataSources.put(key, dataSource);
        super.setTargetDataSources(targetDataSources); // 更新目标数据源
        super.afterPropertiesSet(); // 重新初始化数据源
    }

    // 允许外部访问所有目标数据源
    @Override
    public void setTargetDataSources(Map<Object, Object> targetDataSources) {
        super.setTargetDataSources(targetDataSources);
    }

    public Map<Object, Object> getTargetDataSources() {
        return targetDataSources; // 获取所有目标数据源
    }
}