com.jn.sqlhelper.datasource.supports.spring.boot.DynamicDataSourceLoadBalanceAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright 2020 the original author or authors.
*
* Licensed under the Apache, 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.gnu.org/licenses/lgpl-2.0.html
*
* 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 com.jn.sqlhelper.datasource.supports.spring.boot;
import com.jn.langx.invocation.MethodInvocation;
import com.jn.sqlhelper.datasource.key.DataSourceKey;
import com.jn.sqlhelper.datasource.key.router.DataSourceWeighter;
import com.jn.sqlhelper.datasource.key.router.RandomRouter;
import com.jn.sqlhelper.datasource.key.router.RoundRobinRouter;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @since 3.4.1
*/
@ConditionalOnProperty(name = "sqlhelper.dynamic-datasource.enabled", havingValue = "true", matchIfMissing = false)
@Configuration
@AutoConfigureBefore(DynamicDataSourcesAutoConfiguration.class)
public class DynamicDataSourceLoadBalanceAutoConfiguration {
@Bean(name = "dataSourceRoundRobinWeighter")
@ConditionalOnMissingBean(name = "dataSourceRoundRobinWeighter")
public DataSourceWeighter dataSourceRoundRobinWeighter() {
return new DataSourceWeighter() {
@Override
public int getWeight(DataSourceKey key, MethodInvocation methodInvocation) {
return 0;
}
};
}
@Bean(name="roundRobinRouter")
@ConditionalOnMissingBean(name="roundRobinRouter")
public RoundRobinRouter roundRobinRouter(
@Qualifier("dataSourceRoundRobinWeighter") DataSourceWeighter weighter) {
RoundRobinRouter router = new RoundRobinRouter();
router.setWeighter(weighter);
return router;
}
@Bean(name = "dataSourceRandomWeighter")
@ConditionalOnMissingBean(name = "dataSourceRandomWeighter")
public DataSourceWeighter dataSourceRandomWeighter() {
return new DataSourceWeighter() {
@Override
public int getWeight(DataSourceKey key, MethodInvocation methodInvocation) {
return 0;
}
};
}
@Bean("dataSourceRandomRouter")
@ConditionalOnMissingBean(name="dataSourceRandomRouter")
public RandomRouter dataSourceRandomRouter(
@Qualifier("dataSourceRandomWeighter") DataSourceWeighter weighter) {
RandomRouter router = new RandomRouter();
router.setWeighter(weighter);
return router;
}
}