/*
* Copyright 2012-2016 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 java.util.List;
import com.github.benmanes.caffeine.cache.CacheLoader;
import com.github.benmanes.caffeine.cache.Caffeine;
import com.github.benmanes.caffeine.cache.CaffeineSpec;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cache.CacheManager;
import org.springframework.cache.caffeine.CaffeineCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
/**
* Caffeine cache configuration.
*
* @author EddĂș MelĂ©ndez
* @since 1.4.0
*/
@Configuration
@ConditionalOnClass({ Caffeine.class, CaffeineCacheManager.class })
@ConditionalOnMissingBean(CacheManager.class)
@Conditional({ CacheCondition.class })
class CaffeineCacheConfiguration {
private final CacheProperties cacheProperties;
private final CacheManagerCustomizers customizers;
private final Caffeine<Object, Object> caffeine;
private final CaffeineSpec caffeineSpec;
private final CacheLoader<Object, Object> cacheLoader;
CaffeineCacheConfiguration(CacheProperties cacheProperties,
CacheManagerCustomizers customizers,
ObjectProvider<Caffeine<Object, Object>> caffeine,
ObjectProvider<CaffeineSpec> caffeineSpec,
ObjectProvider<CacheLoader<Object, Object>> cacheLoader) {
this.cacheProperties = cacheProperties;
this.customizers = customizers;
this.caffeine = caffeine.getIfAvailable();
this.caffeineSpec = caffeineSpec.getIfAvailable();
this.cacheLoader = cacheLoader.getIfAvailable();
}
@Bean
public CaffeineCacheManager cacheManager() {
CaffeineCacheManager cacheManager = createCacheManager();
List<String> cacheNames = this.cacheProperties.getCacheNames();
if (!CollectionUtils.isEmpty(cacheNames)) {
cacheManager.setCacheNames(cacheNames);
}
return this.customizers.customize(cacheManager);
}
private CaffeineCacheManager createCacheManager() {
CaffeineCacheManager cacheManager = new CaffeineCacheManager();
setCacheBuilder(cacheManager);
if (this.cacheLoader != null) {
cacheManager.setCacheLoader(this.cacheLoader);
}
return cacheManager;
}
private void setCacheBuilder(CaffeineCacheManager cacheManager) {
String specification = this.cacheProperties.getCaffeine().getSpec();
if (StringUtils.hasText(specification)) {
cacheManager.setCacheSpecification(specification);
}
else if (this.caffeineSpec != null) {
cacheManager.setCaffeineSpec(this.caffeineSpec);
}
else if (this.caffeine != null) {
cacheManager.setCaffeine(this.caffeine);
}
}
}