com.cslc.eils.gameControl.util.PropertiesUtil.java Source code

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Here is the source code for com.cslc.eils.gameControl.util.PropertiesUtil.java

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/*
 * Copyright 2002-2013 China Sports Lottery Technology Group All rights reserved.
 * CSLC PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 */

package com.cslc.eils.gameControl.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * @author tianhao
 *
 */
public class PropertiesUtil {

    private static final Log log = LogFactory.getLog(PropertiesUtil.class);

    /**
     * @param propertyName
     * @param defaultValue
     * @return
     */
    public static String get(String propertyName, String defaultValue) {
        if (propertyName == null || propertyName.equals("")) {

            log.warn("parameters propertyName or defaultValue is null");

            return null;
        }
        return System.getProperty(propertyName, defaultValue);
    }

    /**
     * @param propertyName
     * @param value
     * @return
     */
    public static String set(String propertyName, String value) {
        if (propertyName == null || propertyName.equals("") || value == null || value.equals("")) {

            log.warn("parameters propertyName or value is null");

            return null;
        }
        return System.setProperty(propertyName, value);
    }

    /**
     * 
     * 
     * @param propFileUrl 
     * 
     * @return 
     */
    public static Properties loadProperties(String propFileUrl) {
        log.info(":" + propFileUrl);
        InputStream in = null;
        try {
            File path = new File(propFileUrl);
            if (!path.exists()) {
                //   TODO Throws exp
            } else {
                Properties properties = new Properties();
                in = new FileInputStream(path);
                properties.load(in);
                return properties;
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException ioe) {
                    ioe.printStackTrace();
                }
            }
        }
        return null;
    }

}