org.jlgranda.fede.cache.SettingCacheProvider.java Source code

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Here is the source code for org.jlgranda.fede.cache.SettingCacheProvider.java

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/*
 * Copyright (C) 2018 jlgranda
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.jlgranda.fede.cache;

import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.jlgranda.fede.ejb.SettingService;
import java.io.Serializable;
import java.util.concurrent.TimeUnit;
import javax.ejb.EJB;
import javax.ejb.Singleton;
import org.jpapi.model.Setting;

/**
 *
 * @author jlgranda
 */
@Singleton
public class SettingCacheProvider implements Serializable {

    private static final long serialVersionUID = -2125190343526758312L;

    private LoadingCache<Long, Setting> cache;

    @EJB
    SettingService settingService;

    public SettingCacheProvider() {

        cache = CacheBuilder.newBuilder().maximumSize(100).expireAfterWrite(5, TimeUnit.MINUTES)
                .build(new CacheLoader<Long, Setting>() {
                    @Override
                    public Setting load(Long id) throws Exception {
                        return settingService.find(id);
                    }
                });
    }

    public LoadingCache<Long, Setting> getCache() {
        return cache;
    }
}