logutil.java

信息发布 发布系统 动态的菜单 和 信息统计

package com.xuntian.material.util;

import java.io.File;
import java.util.Enumeration;
import java.util.MissingResourceException;
import java.util.Properties;
import java.util.ResourceBundle;

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;

/**
 * @author lip
 * Mar 6, 2006
 * copyright@xuntian
 */
public class LogUtil { 
	/** 
	 * the file path
	 */
	private static final String logCofigFile=Constants.LOG_CONFIG_FILE;
	private static ResourceBundle myResource=null;
	 static {
	        /**
	         * load the configuration property file.
	         */
	        try {
	        	myResource =ResourceBundle.getBundle(logCofigFile);
	            /**
	             * change the path of the log file.
	             */
	            Properties logProperties = new Properties();
	            String tempKey = "";

	            for (Enumeration e = myResource.getKeys(); e.hasMoreElements(); ) {
	                tempKey = (String) e.nextElement();
	                logProperties.put(tempKey, myResource.getString(tempKey));
	            }
	  
	            /**
	             * configure the loggers.
	             */
	            String LOG_PATH = logProperties.getProperty("log4j.appender.AppAppender.File");            
	            File logFile = new File(LOG_PATH);
	            logFile.getParentFile().mkdirs();
	            PropertyConfigurator.configure(logProperties);

	        } catch (MissingResourceException mre) {
	            mre.printStackTrace();
	        }
	    }
	/**
     * Return a log utility for class denoted by <code>className</code>
     * @param className name of class which the logger belongs to.
     */
    protected static Logger getLogger(String className) {
        Logger cat = Logger.getLogger(className);
        return cat;
    }

    /**
     * Return a log utility for class denoted by <code>a_Class</code>
     * @param a_Class class which the logger belongs to.
     */
    public static Logger getLogger(Class a_Class) {
        return getLogger(a_Class.getName());
    }

    /**
     * Return a log utility for class denoted by <code>a_Object</code>
     * @param a_Object object which the logger belongs to.
     */
    public static Logger getLogger(Object a_Object) {
        return getLogger(a_Object.getClass().getName());
    }
}