DolphinScheduler/dolphinscheduler-dao/src/main/java/org/apache/dolphinscheduler/dao/utils/BeanContext.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.dolphinscheduler.dao.utils;


import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 *  bean context
 */
@Component
 public class BeanContext implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }

    /**
     * get bean
     * @param name class name
     * @param <T> generic
     * @return target object
     * @throws BeansException if error throws BeansException
     */
    @SuppressWarnings("unchecked")
    public static <T> T getBean(String name) throws BeansException {
        return (T)applicationContext.getBean(name);
    }

    /**
     * get bean
     * @param clazz clazz
     * @param <T> generic
     * @return target object
     * @throws BeansException if error throws BeansException
     */
    public static <T> T getBean(Class<T> clazz) throws BeansException {
        return applicationContext.getBean(clazz);
    }


    /**
     * set applicationcontext
     * @param applicationContext applicationContext
     * @throws BeansException if error throws BeansException
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        BeanContext.applicationContext = applicationContext;
    }
}