DataSourceConfiguration.java
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package com.diligrp.boss.shared.datasource;
import com.zaxxer.hikari.HikariDataSource;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
@Aspect
@Configuration
public class DataSourceConfiguration {
@Bean
@ConfigurationProperties(prefix = "spring.datasource")
public DataSourceProperties masterProperties() {
return new DataSourceProperties();
}
@Bean
@ConfigurationProperties(prefix = "spring.datasource.hikari")
public DataSource masterDataSource() {
HikariDataSource dataSource = new HikariDataSource();
DataSourceProperties properties = masterProperties();
dataSource.setDriverClassName(properties.determineDriverClassName());
dataSource.setJdbcUrl(properties.determineUrl());
dataSource.setUsername(properties.determineUsername());
dataSource.setPassword(properties.determinePassword());
return dataSource;
}
@Bean
@ConfigurationProperties(prefix = "spring.datasource.slave")
public DataSourceProperties slaveProperties() {
return new DataSourceProperties();
}
@Bean
@ConfigurationProperties(prefix = "spring.datasource.slave.hikari")
public DataSource salveDataSource() {
HikariDataSource dataSource = new HikariDataSource();
DataSourceProperties properties = slaveProperties();
dataSource.setDriverClassName(properties.determineDriverClassName());
dataSource.setJdbcUrl(properties.determineUrl());
dataSource.setUsername(properties.determineUsername());
dataSource.setPassword(properties.determinePassword());
return dataSource;
}
@Bean
@Primary
public DataSource dynamicDataSource() {
Map<Object, Object> datasourceMap = new HashMap<>();
datasourceMap.put(DataSourceName.MASTER, masterDataSource());
datasourceMap.put(DataSourceName.SLAVE, salveDataSource());
MultipleDataSource multipleDataSource = new MultipleDataSource();
multipleDataSource.setTargetDataSources(datasourceMap);
multipleDataSource.setDefaultTargetDataSource(masterDataSource());
return multipleDataSource;
}
@Pointcut(value = "@annotation(com.diligrp.boss.shared.datasource.DataSourceOption)")
public void dataSourcePointCut(){
}
@Around("dataSourcePointCut()")
public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
DataSourceName name = getMetadata(joinPoint).value();
try{
DataSourceNameContext.setDataSourceName(name);
return joinPoint.proceed();
}finally {
DataSourceNameContext.removeDataSourceName();
}
}
private DataSourceOption getMetadata(ProceedingJoinPoint joinPoint) {
Class<?> targetClass = joinPoint.getTarget().getClass();
DataSourceOption annotation = targetClass.getAnnotation(DataSourceOption.class);
if (Objects.nonNull(annotation)) {
return annotation;
} else {
MethodSignature signature = (MethodSignature) joinPoint.getSignature();
return signature.getMethod().getAnnotation(DataSourceOption.class);
}
}
}