gscdiag.java

流量分析 可以对SNIFFER抓的包进行分析

package com.tianxun.NEI.sniffer.util;


/**
 * The GscDiag write the diagnosis message to a log file, because it does a lot of
 * I/O operation, it will effect the performance of process.
 */
public class GscDiag {

	/**  */
	private static Logger logger;

    /**
     * Initializes Diagnosis facility.
     *
     * @param logger	operation logger
     */
    public static synchronized void initialize(Logger logger) {
        GscDiag.logger = logger;
    }
    /**
     * Initializes Diagnosis facility.
     * set the Logfile name ,loglevel and logdir
     *
     * @param logdir	save log directory
     * @param logName	log file name
     * @param logLevel	log level
     */
    public static synchronized void initialize(String logdir,
    										   String logName,
    										   int logLevel) {
        logger = new Logger(logdir, logName, logLevel);
        logger.writeConfigurations();
    }
    /**
     * Initializes Diagnosis facility.
     * set the Logfile name and loglevel
     * the logfile directory is under system temp directory
     *
     * @param logName	log file name
     * @param logLevel	log level
     */
    public static synchronized void initialize(String logName, int logLevel) {
        logger = new Logger(logName, logLevel);
        logger.writeConfigurations();
    }
    /**
     * Initializes Diagnosis facility.
     * set the Logfile name and loglevel
     * the logfile directory is under system temp directory
     *
     * @param logName	log file name
     */
    public static synchronized void initialize(String logName) {
        logger = new Logger(logName);
        logger.writeConfigurations();
    }
    /**
     * Initializes Diagnosis facility.
     * use default logname ="GscDiag" and loglevel=3
     */
    public static synchronized void initialize() {
        logger = new Logger("GscDiag");
        logger.writeConfigurations();
    }
    public static synchronized String getLogName() {
		return logger == null ? "GscDiag" : logger.getLogName();
	}
    public static synchronized int getLogLevel() {
		return logger == null ? Logger.SANITY_LEVEL : logger.getLogLevel();
	}
    public static synchronized String getLogDir() {
		return logger == null ? null : logger.getLogDir();
	}
    /**
     * Shuts down Diagnosis facility.
     */
    public static synchronized void shutDown() {
    	if (logger != null) {
    		logger.shutDown();
    	}
    }

    /**
     * Logs this message.
     *
     * @param logLevel 	log level that controls if this message will be logged.
     * When this log level is equal or greater than the defined log level, this message is logged.
     * @param title 	text title to be put into the log.
     * @param message 	text message to be logged.
     */
    public static synchronized void log(
    		int logLevel, String title, String message) {
    	if (logger == null) {
    		initialize();
    	}
    	logger.log(logLevel, title, message);
    }
	/**
	 * Logs this message.
     *
     * @param logLevel	log level that controls if this message will be logged.
     * When this log level is equal or greater than the definedlog level, this message is logged.
     * @param message 	text message to be logged.
     */
    public static synchronized void log(int logLevel, String message) {
    	if (logger == null) {
    		initialize();
    	}
    	logger.log(logLevel, message);
    }
    /** Logs the stack trace of an exception.
     *
     * @param logLevel		log level that controls if this message will be logged.
     * When this log level is equal or greater than the defined log level, this message is logged.
     * @param title 		text title to be put into the log.
     * @param throwable 	exception to be logged.
     */
    public static synchronized void printStackTrace(
    		int logLevel, String title, Throwable throwable) {
    	if (logger == null) {
    		initialize();
    	}
    	logger.printStackTrace(logLevel, title, throwable);
    }
}