com.smartitengineering.cms.ws.resources.ResourcesConfig.java Source code

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Here is the source code for com.smartitengineering.cms.ws.resources.ResourcesConfig.java

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/*
 *
 * This is a simple Content Management System (CMS)
 * Copyright (C) 2012  Imran M Yousuf (imyousuf@smartitengineering.com)
 *
 * 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 com.smartitengineering.cms.ws.resources;

import com.smartitengineering.util.bean.PropertiesLocator;
import java.io.IOException;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Semaphore;
import org.apache.commons.lang.math.NumberUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author imyousuf
 */
public final class ResourcesConfig {

    private final Properties properties = new Properties();

    private ResourcesConfig() throws IOException {
        PropertiesLocator locator = new PropertiesLocator();
        locator.setSmartLocations("com/smartitengineering/cms/ws/resources/web-service-config.properties");
        locator.loadProperties(properties);
    }

    private static final Semaphore MUTEX = new Semaphore(1);
    private static final Logger LOGGER = LoggerFactory.getLogger(ResourcesConfig.class);
    private static ResourcesConfig config;

    public static ResourcesConfig getInstance() {
        if (config == null) {
            try {
                MUTEX.acquire();
            } catch (Exception ex) {
                LOGGER.warn("Could not attain Config creation lock", ex);
                return null;
            }
            try {
                if (config == null) {
                    config = new ResourcesConfig();
                }
            } catch (Exception ex) {
                LOGGER.warn("Could create Config", ex);
            } finally {
                MUTEX.release();
            }
        }
        return config;
    }

    public Map<String, String> getAllProperties() {
        return Collections.unmodifiableMap(new LinkedHashMap(properties));
    }

    public int getContentHttpCacheControlMaxAge() {
        return NumberUtils.toInt(properties.getProperty("com.smartitengineering.cms.content.http.cache.maxAge"),
                300);
    }

    public int getFieldHttpCacheControlMaxAge() {
        return NumberUtils.toInt(properties.getProperty("com.smartitengineering.cms.field.http.cache.maxAge"), 300);
    }

    public int getRepresentationHttpCacheControlMaxAge() {
        return NumberUtils
                .toInt(properties.getProperty("com.smartitengineering.cms.representation.http.cache.maxAge"), 900);
    }

    public int getVariationHttpCacheControlMaxAge() {
        return NumberUtils.toInt(properties.getProperty("com.smartitengineering.cms.variation.http.cache.maxAge"),
                900);
    }
}