Simple Logger

Hi!

Here the Code for a super easy Logger, and a example how to use it.

Code (Just copy it in a Class named Logger - Don't forget to add the package!):

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Code:

 
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
 
public class Logger {
 
 
/**
*
* SimpleLogger - Class
* @author Uniclaw
*
*
* How using it?
*
* Just declare in you'r onEnable() Method a new Instance of "Logger" (Logger yournameforlogger = new Logger(All the Arguments);
* The Arguments:
* boolean d - On Logging, would you log the date? (Like in the Bukkit Console)
* DateFormat df - If you use the Date, give here the DateFormat
* All the Strings wich starts with bracket: There are the Brackets for the Date and the Name.
*/
 
protected static File f;
protected static boolean d;
protected static DateFormat dateF;
protected static String bod;
protected static String bop;
protected static String bcd;
protected static String bcp;
protected static ArrayList<String> prelog = new ArrayList<String>();
 
 
public Logger(boolean d, DateFormat df, File f, String bracketOD, String bracketCD, String bracketOP, String bracketCP){
Logger.d = d;
Logger.dateF = df;
Logger.f = f;
Logger.bod = bracketOD;Logger.bop = bracketOP;
Logger.bcd = bracketCD;Logger.bcp = bracketCP;
createLog(f);
}
 
public Logger(File f, String bracketOD, String bracketCD, String bracketOP, String bracketCP){
Logger.d = true;
Logger.dateF = new SimpleDateFormat("dd/MM/YY HH:mm:ss");
Logger.f = f;
Logger.bod = bracketOD;Logger.bop = bracketOP;
Logger.bcd = bracketCD;Logger.bcp = bracketCP;
createLog(f);
}
 
public void log(String logMsg, String name){
        BufferedWriter bw;
 
        DateFormat dateFormat;
        if(dateF == null){
      dateFormat = new SimpleDateFormat("HH:mm:ss dd/MM");
        }else{
      dateFormat = dateF;
        }
 
        Date date = new Date();
        String datum = bod + dateFormat.format(date) + bcd;
 
try {
bw = new BufferedWriter(new FileWriter(f, true));
if(d){
bw.write(datum + bop + name+ bcp + ": " + logMsg);
}else{
bw.write(bop + name+ bcp + ": " + logMsg);
}
      bw.newLine();
      bw.close();
} catch (IOException e) {
}
}
 
public ArrayList<String> getList(){
return prelog;
}
 
public void logLC(String logMsg, String name){
BufferedWriter bw;
 
        DateFormat dateFormat;
        if(dateF == null){
      dateFormat = new SimpleDateFormat("HH:mm:ss dd/MM");
        }else{
      dateFormat = dateF;
        }
 
        Date date = new Date();
        String datum = bod + dateFormat.format(date) + bcd;
 
try {
bw = new BufferedWriter(new FileWriter(f, true));
if(d){
bw.write(datum + bop + name+ bcp + ": " + logMsg);
System.out.println(datum + bop + name+ bcp + ": " + logMsg);
}else{
bw.write(bop + name+ bcp + ": " + logMsg);
System.out.println(bop + name+ bcp + ": " + logMsg);
}
      bw.newLine();
      bw.close();
} catch (IOException e) {
}
}
 
public void memorize(String logMsg, String name){
        DateFormat dateFormat;
        if(dateF == null){
      dateFormat = new SimpleDateFormat("HH:mm:ss dd/MM");
        }else{
      dateFormat = dateF;
        }
 
        Date date = new Date();
        String datum = bod + dateFormat.format(date) + bcd;
        String n;
if(d){
n = datum + bop + name+ bcp + ": " + logMsg;
}else{
n = bop + name+ bcp + ": " + logMsg;
}
prelog.add(n);
}
 
public void logMemory(){
        BufferedWriter bw;
 
try {
bw = new BufferedWriter(new FileWriter(f, true));
for(String s:prelog){
bw.write(s);
bw.newLine();
}
      bw.close();
} catch (IOException e) {
}
}
 
protected static void createLog(File f){
try {
  File file = f;
 
  if(! file.exists()){
  file.createNewFile();
  }
} catch (IOException e) {
}
}
 
}

How to use it?

Its very simple!
Just make a new instance of the Logger in your main class, in the onEnable Method:

Code:

Logger nameOfYourLogger = new Logger(Boolean b, DateFormat  df, File f, String bracketOD, String bracketCD, String bracketOP, String bracketCP);

Explanation:

If the Boolean b is true, the Logger will use the Date in the Logfile.

DateFormat df: If you use the Date, and would have a specific DateFormat, just give it - If you make it "null", the Logger will automatically use "HH:mm:ss dd/MM"

File f is the File wich the Logger must create.

The Strings bracketOD, bracketCD, bracketOP, bracketCP are the brackets for the Date and the logged user - just look in the example.


Now, with

Code:

nameOfYourLogger.log(Stringtolog, Stringloggedname); , you will logg a msg.

Example in use:

In the Main (in the example he is named "Main"):

Code:

 
public static Logger;
public void onEnable(){
    Logger = new Logger(true, null, new File(this.getDataFolder(), "Log.log"), "[", "]", "{", "}");
}

In a Listener:

Code:

@EventHandler
public void break(BlockBreakEvent e){
Player p = e.getPlayer();
Main.Logger.log("Has destroyed a Block!", p.getName();
}

Those two code will output this on every Block-destroying in the FIle log.log :

Code:

[22:48:07 19/10]{Playername} :  Has destroyed a Block!

And there are other Methods.. :

Code:

logLC(String logMsg, String name);

- The same as logg, just that this logg in the file and in the console.

Code:

memorize(String logMsg, String name);

- Memorize a logString.

Code:

logMemory();

- Log all memorized Strings

Code:

getList();

- returns a ArrayList wich all memorized Strings in it

Greet

#Added 4 Methods -

#1. loggLC(String msg, String loggedname); - Same as logg(String msg, String loggedname), but this logg the message in the console and in the file

#2. memorize(String logMsg, String name); - memorize the LogString

#3. loggMemory(); - Logg all memorized Strings

#4. getList(); - return a ArrayList with all memorized strings in it

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Nice! But why is the method called logg?

 

Thanks! Oh, fail xD

#changed

 

You should add other constructors for example the majority of people will just use the standard date format ("dd/MM/YY HH:mm:ss") <== I believe this is correct

 

Yeah, you are right !

#added