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/*
 * Copyright 2016 the original author or authors.
 *
 * 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 org.springframework.boot.autoconfigure.cache;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.data.redis.CustomRedisAutoConfiguration;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.cache.interceptor.plus.RedisKeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.plus.MasterSlaveRedisCacheManager;
import org.springframework.data.redis.core.RedisTemplate;

/**
 * Custom {@link CacheAutoConfiguration}
 */
@Configuration
@EnableCaching
@Import({ CustomRedisAutoConfiguration.class, CacheAutoConfiguration.class })
public class CustomCacheAutoConfiguration extends CachingConfigurerSupport {
	
	/**
	 * {@link RedisTemplate}
	 */
	@Autowired
	private RedisTemplate redisTemplate;
	
	/**
	 * Slave {@link RedisTemplate}
	 */
	@Qualifier(CustomRedisAutoConfiguration.SLAVE_REDIS_TEMPLATE_BEAN_NAME)
	@Autowired(required = false)
	private RedisTemplate slaveRedisTemplate;
	
	@Bean
	@Override
	public RedisCacheManager cacheManager() {
		
		RedisCacheManager manager = new RedisCacheManager(this.redisTemplate);
		
		if (this.slaveRedisTemplate != null) {
			
			manager = new MasterSlaveRedisCacheManager(this.redisTemplate, this.slaveRedisTemplate);
		}
		
		manager.setTransactionAware(true);
		manager.setUsePrefix(true);
		
		return manager;
	}
	
	@Bean
	@Override
	public KeyGenerator keyGenerator() {
		
		return new RedisKeyGenerator();
	}
}