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/*
 * Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
 *
 * 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.hazelcast.spring.context;

import com.hazelcast.core.ManagedContext;
import com.hazelcast.executor.impl.RunnableAdapter;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
 * {@link ManagedContext} implementation for Hazelcast.
 */
public class SpringManagedContext implements ManagedContext, ApplicationContextAware {

    private AutowireCapableBeanFactory beanFactory;

    public SpringManagedContext() {
    }

    public SpringManagedContext(ApplicationContext applicationContext) {
        setApplicationContext(applicationContext);
    }

    @Override
    public Object initialize(Object obj) {
        Object resultObject = obj;
        if (obj != null) {
            if (obj instanceof RunnableAdapter adapter) {
                Object runnable = adapter.getRunnable();
                runnable = initializeIfSpringAwareIsPresent(runnable);
                adapter.setRunnable((Runnable) runnable);
            } else {
                resultObject = initializeIfSpringAwareIsPresent(obj);
            }
        }
        return resultObject;
    }

    private Object initializeIfSpringAwareIsPresent(Object obj) {
        Class clazz = obj.getClass();
        SpringAware s = clazz.getAnnotation(SpringAware.class);
        Object resultObject = obj;
        if (s != null) {
            String name = s.beanName().trim();
            if (name.isEmpty()) {
                name = clazz.getName();
            }
            beanFactory.autowireBean(obj);
            resultObject = beanFactory.initializeBean(obj, name);
        }
        return resultObject;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.beanFactory = applicationContext.getAutowireCapableBeanFactory();
    }
}