package tech.powerjob.server.common.spring.condition;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.lang3.StringUtils;
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import org.springframework.beans.factory.NoSuchBeanDefinitionException;
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import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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import org.springframework.context.annotation.Condition;
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import org.springframework.context.annotation.ConditionContext;
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import org.springframework.core.env.Environment;
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import org.springframework.core.type.AnnotatedTypeMetadata;
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import tech.powerjob.common.utils.CollectionUtils;
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import java.util.List;
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/**
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* PropertyAndOneBeanCondition
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* 存在多个接口实现时的唯一规则
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*
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* @author tjq
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* @since 2023/7/30
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*/
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@Slf4j
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public abstract class PropertyAndOneBeanCondition implements Condition {
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/**
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* 配置中存在任意一个 Key 即可加载该 Bean,空代表不校验
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* @return Keys
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*/
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protected abstract List<String> anyConfigKey();
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/**
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* Bean 唯一性校验,空代表不校验
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* @return beanType
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*/
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protected abstract Class<?> beanType();
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@Override
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public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
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boolean anyCfgExist = checkAnyConfigExist(context);
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log.info("[PropertyAndOneBeanCondition] [{}] check any config exist result with keys={}: {}", thisName(), anyConfigKey(), anyCfgExist);
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if (!anyCfgExist) {
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return false;
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}
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Class<?> beanType = beanType();
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if (beanType == null) {
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return true;
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}
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boolean exist = checkBeanExist(context);
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log.info("[PropertyAndOneBeanCondition] [{}] bean of type[{}] exist check result: {}", thisName(), beanType.getSimpleName(), exist);
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if (exist) {
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log.info("[PropertyAndOneBeanCondition] [{}] bean of type[{}] already exist, skip load!", thisName(), beanType.getSimpleName());
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return false;
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}
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return true;
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}
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private boolean checkAnyConfigExist(ConditionContext context) {
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Environment environment = context.getEnvironment();
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List<String> keys = anyConfigKey();
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if (CollectionUtils.isEmpty(keys)) {
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return true;
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}
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// 判断前缀是否符合,任意满足即可
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for (String key : keys) {
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if (StringUtils.isNotEmpty(environment.getProperty(key))) {
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return true;
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}
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}
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return false;
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}
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private boolean checkBeanExist(ConditionContext context) {
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ConfigurableListableBeanFactory beanFactory = context.getBeanFactory();
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if (beanFactory == null) {
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return false;
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}
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try {
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beanFactory.getBean(beanType());
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return true;
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} catch (NoSuchBeanDefinitionException ignore) {
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return false;
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}
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}
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private String thisName() {
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return this.getClass().getSimpleName();
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}
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}
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