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/**
*
*/
import java.io.file;
import java.io.filewriter;
import java.io.ioexception;
import java.text.simpledateformat;
import java.util.date;
/**
* @author magic282
*
*/
public class logger {
private static string logfilepath;
private static boolean isinitialized = false;
private static filewriter logwriter = null;
private static boolean printlogwhenlog = true;
private static boolean initlogger() {
string logdirectorypath = system.getproperty("user.dir")
+ java.io.file.separatorchar + "log";
if (!new file(logdirectorypath).exists()) {
new file(logdirectorypath).mkdir();
}
date logfiledate = new date();
simpledateformat dateformat = new simpledateformat(
"yyyy-mm-dd-hh-mm-ss");
logfilepath = logdirectorypath + java.io.file.separatorchar
+ dateformat.format(logfiledate) + ".log";
try {
logwriter = new filewriter(logfilepath, true);
isinitialized = true;
} catch (ioexception e) {
// todo auto-generated catch block
system.err.println("unable to create log file.");
system.err.println("initilization fail.");
e.printstacktrace();
return false;
}
return true;
}
public static void log(string message) {
if (!isinitialized) {
initlogger();
}
date logfiledate = new date();
simpledateformat dateformat = new simpledateformat(
"yyyy-mm-dd-hh-mm-ss");
string callingclassname = new exception().getstacktrace()[1]
.getclassname();
synchronized (logwriter) {
string log = string.format("[%s] @ [%s]: %s\n", callingclassname,
dateformat.format(logfiledate), message);
if (printlogwhenlog) {
system.out.printf("[log]:%s", log);
}
try {
logwriter.write(log);
logwriter.flush();
} catch (ioexception e) {
// todo auto-generated catch block
system.err.println("write log to file %s error.");
e.printstacktrace();
}
}
}
public static void log(exception exception) {
if (!isinitialized) {
initlogger();
}
date logfiledate = new date();
simpledateformat dateformat = new simpledateformat(
"yyyy-mm-dd-hh-mm-ss");
string callingclassname = new exception().getstacktrace()[1]
.getclassname();
synchronized (logwriter) {
string log = string.format("[%s] @ [%s]: %s\n", callingclassname,
dateformat.format(logfiledate), exception.tostring());
if (printlogwhenlog) {
system.out.printf("[log]:%s", log);
}
try {
logwriter.write(log);
logwriter.flush();
} catch (ioexception e) {
// todo auto-generated catch block
system.err.println("write log to file %s error.");
e.printstacktrace();
}
}
}
}
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