FileManager --3

//加载配置文件配置信息
private Properties loadProperties()
{
Properties prop = new Properties();
try
{
if (configFile != null)
{
FileInputStream in = new FileInputStream(configFile);
prop.load(in);
in.close();
}
else
{
configFile = defaultConfigFile;
URL url = this.getClass().getClassLoader().getResource(defaultConfigFile);
InputStreamReader reader = new InputStreamReader(url.openStream());
prop.load(reader);
reader.close();
}
//print all properties
Enumeration<?> enu = prop.propertyNames();
logger.info("Load configuration file[" + configFile + "] start...");
while (enu.hasMoreElements())
{
String key = (String)enu.nextElement();
        logger.info(" key: " + key + ",     value: " + prop.getProperty(key));
}
logger.info("Load configuration file[" + configFile + "] success.");

return prop;
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
return prop;
}

//对外开放的方法，可以取到监听的文件配置数据
public static String getProperty(String fileName, String key)
{
        //如果size为0，则程序没有启动，需要先启动程序
        if (FMap.size() == 0)
        {
            synchronized(FileManager.class)
            {
                if (FMap.size() == 0)
                {
                    //启动监听
                    startService();
                }
            }
        }
Object obj = FMap.get(fileName);
if (obj != null)
{
FileListener listener = (FileListener)obj;

if (listener.isFileFlag())
{
return listener.getProperties().getProperty(key);
}
else
{
return listener.getTransferValue(key);
}
// Properties prop = ((FileListener)obj).getProperties();
// return prop.getProperty(key);
}
else
{
return null;
}
}


//提供给ESB使用的方法，取ESB配置文件数据
public static String getESBProperty(String key)
{
return getProperty("esb.properties", key);
}

public static String getTransferValue(String type,String value)
{
StringBuffer buf = new StringBuffer(type).append("||")
                                         .append(XMLParserHelper.ORIGINALL_VALUE)
                                         .append("||")
                                         .append(value);
return getProperty(ENUMERATE,buf.toString());
}

public static String getOriginallyValue(String type,String value)
{
StringBuffer buf = new StringBuffer(type).append("||")
     .append(XMLParserHelper.TRANSFER_VALUE)
     .append("||")
     .append(value);
return getProperty(ENUMERATE,buf.toString());
}


//启动监听服务
private static void startService()
{
FileManager fm = new FileManager();
fm.regFileListener();
}
}