cz.muni.fi.editor.services.commons.CacheManagerFactoryBean.java Source code

Introduction

Here is the source code for cz.muni.fi.editor.services.commons.CacheManagerFactoryBean.java

Source

/*
*Copyright  2016 Dominik Szalai (emptulik@gmail.com)
*
*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 cz.muni.fi.editor.services.commons;

import lombok.extern.log4j.Log4j2;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.cache.CacheManager;
import org.springframework.cache.jcache.JCacheCacheManager;
import org.springframework.stereotype.Component;

import javax.cache.Caching;
import javax.cache.configuration.MutableConfiguration;
import javax.cache.spi.CachingProvider;

/**
 * Created by Dominik Szalai - emptulik at gmail.com on 21.11.2016.
 */
@Log4j2
@Component
public class CacheManagerFactoryBean implements FactoryBean<CacheManager>, InitializingBean {
    private CacheManager cacheManager;

    @Override
    public CacheManager getObject() throws Exception {
        log.info("get manager");
        return cacheManager;
    }

    @Override
    public Class<?> getObjectType() {
        return cacheManager != null ? cacheManager.getClass() : CacheManager.class;
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        CachingProvider provider = Caching.getCachingProvider();

        javax.cache.CacheManager cacheManager = provider.getCacheManager(
                getClass().getResource("/config/cache.xml").toURI(), provider.getDefaultClassLoader());
        MutableConfiguration<Object, Object> configuration = new MutableConfiguration<>();
        configuration.setStoreByValue(false);

        /**
         * avoids dirties context reset of cache, where cache already exists
         */
        for (String s : new String[] { "userCache", "organizationCache", "organizationCacheList" }) {
            if (cacheManager.getCache(s) == null) {
                cacheManager.createCache(s, configuration);
            }
        }

        this.cacheManager = new JCacheCacheManager(cacheManager);
    }
}