com.mybatisflex.spring.boot.ConditionalOnMybatisFlexDatasource Maven / Gradle / Ivy
/*
* Copyright (c) 2022-2025, Mybatis-Flex ([email protected]).
*
* 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.
*/
package com.mybatisflex.spring.boot;
import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.context.annotation.Conditional;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.core.env.*;
import org.springframework.core.type.AnnotatedTypeMetadata;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.util.Iterator;
/**
*
判断是否有 MyBatis-Flex 的多数据源配置。
*
如果配置文件中有 MyBatis-Flex 的多数据源配置，就加载 MyBatis-Flex 多数据源自动配置类。
*
* @author michael
*/
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Conditional(ConditionalOnMybatisFlexDatasource.OnMybatisFlexDataSourceCondition.class)
public @interface ConditionalOnMybatisFlexDatasource {
@Order(Ordered.HIGHEST_PRECEDENCE)
class OnMybatisFlexDataSourceCondition extends SpringBootCondition {
@Override
public ConditionOutcome getMatchOutcome(ConditionContext context, AnnotatedTypeMetadata metadata) {
Environment env = context.getEnvironment();
if (env instanceof AbstractEnvironment) {
MutablePropertySources propertySources = ((AbstractEnvironment) env).getPropertySources();
Iterator> it = propertySources.stream().iterator();
while (it.hasNext()) {
PropertySource ps = it.next();
if (ps instanceof EnumerablePropertySource) {
for (String propertyName : ((EnumerablePropertySource) ps).getPropertyNames()) {
if (propertyName.startsWith("mybatis-flex.datasource.")) {
return ConditionOutcome.match();
}
}
}
}
}
return ConditionOutcome.noMatch("'mybatis-flex.datasource' is necessary.");
}
}
}