GPCacheAppConfig.java

/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2017 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   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/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.cache;

import java.io.IOException;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.Resource;

/**
 * @author Nazzareno Sileno - CNR IMAA geoSDI Group
 * @email nazzareno.sileno@geosdi.org
 */
public class GPCacheAppConfig implements ApplicationContextAware {

    private ApplicationContext appContext;
    private String resourcePath;
    private GPCacheManager gpCacheManager;

    /**
     * Create a cacheManager within the Spring Application Context
     * @return a bean
     */
    public @Bean(name = "cacheManager")
    GPCacheManager cacheManager() throws IOException {
        if (this.gpCacheManager == null) {
            if (this.resourcePath == null) {
                throw new IllegalArgumentException("The encache.xml url must not be null");
            }
            
            Resource resource = appContext.getResource(resourcePath);

            this.gpCacheManager = new GPCacheManager(resource.getInputStream());
        }
        return this.gpCacheManager;
    }

    /**
     * @param resourcePath the resourcePath to set
     */
    public void setResourcePath(String resourcePath) {
        this.resourcePath = resourcePath;
    }

    @Override
    public void setApplicationContext(ApplicationContext ac) throws BeansException {
        this.appContext = ac;
    }
}