net.sf.zekr.common.config.ResourceManager.java Source code

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Here is the source code for net.sf.zekr.common.config.ResourceManager.java

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/*
 *               In the name of Allah
 * This file is part of The Zekr Project. Use is subject to
 * license terms.
 *
 * Author:         Mohsen Saboorian
 * Start Date:     Aug 4, 2005
 */
package net.sf.zekr.common.config;

import org.apache.commons.configuration.PropertiesConfiguration;
import org.apache.commons.lang.StringUtils;

/**
 * This class is used to handle dynamic resource bundles which use <i>Velocity</i> as the template engine.
 * 
 * @author Mohsen Saboorian
 */
public class ResourceManager {
    private static ResourceManager thisInstance;
    private static PropertiesConfiguration resource;

    private ResourceManager() {
        try {
            resource = new PropertiesConfiguration();
            resource.load(new VelocityInputStream("res/resource-path.properties"), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static synchronized ResourceManager getInstance() {
        if (thisInstance == null)
            return (thisInstance = new ResourceManager());
        return thisInstance;
    }

    public String getString(String key) {
        return getString(key, (String) null);
    }

    /**
     * @param key
     *           key to find in resource
     * @param value
     *           value to be returned if key not found
     * @return related entry in the resource file, or value if key not found.
     */
    public String getString(String key, String value) {
        String ret = resource.getString(key);
        return ret == null ? value : ret;
    }

    public String[] getStrings(String key) {
        return resource.getStringArray(key);
    }

    public String getString(String key, Object[] strArray) {
        String val = getString(key);
        for (int i = 0; i < strArray.length; i++) {
            val = StringUtils.replace(val, "{" + (i + 1) + "}", strArray[i].toString());
        }
        return val;
    }
}