debug.java

来自「J2EE & Tomcat books published by hope」· Java 代码 · 共 70 行

/*
 */

package com.sun.j2ee.workflow.util;

import java.io.*;

/**
 * @author Jian (James) Cai
 */
public final class Debug {
    
    public static final boolean debuggingOn = true;
    public static final boolean logToFile = true;
    
    public static void assert(boolean condition) {
        if (!condition) {
            println("Assert Failed: ");
            throw new IllegalArgumentException();
        }
    }
    
    public static void print(String msg) {
        if (debuggingOn) {
            System.out.print(msg);
        }
    }
    
    public static void println(String msg) {
        if (debuggingOn) {
            System.out.println(msg);
        }
    }
    
    public static void print(Exception e, String msg) {
        print((Throwable)e, msg);
    }
    
    public static void print(Exception e) {
        print(e, null);
    }
    
    public static void print(Throwable t, String msg) {
        if (debuggingOn) {
            System.out.println("Received throwable with Message: "+t.getMessage());
            if (msg != null)
                System.out.print(msg);
            t.printStackTrace();
        }
    }
    
    public static void print(Throwable t) {
        print(t, null);
    }
    
    public static void log(String message, File filename) {
        
        try {
            if ( logToFile==true ) {
                FileOutputStream	logFileOut = new FileOutputStream( filename.toString(), true );
                logFileOut.write( ("Workflow Log: " + message).getBytes() );
                logFileOut.write( "\n".getBytes() );
            }
        //    System.out.println("Listenerset1: " + message); log
        }
        catch (Exception e ) {
            System.out.println("Exception occured : " + e );
        }
    }
}