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package dk.daoas.adressevedligehold.tasks;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.logging.Level;
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import org.apache.commons.lang3.exception.ExceptionUtils;
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public class TaskLogger {
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private StringBuilder buffer = new StringBuilder(1 * 1024 * 1024);// Reserve 1MB
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private SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss.SSS");
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public String getBuffer() {
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synchronized(buffer) {
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return buffer.toString();
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}
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}
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public void reset() {
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synchronized(buffer) {
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buffer.setLength(0);
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}
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}
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public void log(Level lvl, String msg) {
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log("[" + lvl.toString() + "] " + msg);
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}
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public void log(Level lvl, String msg, Exception e) {
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log("[" + lvl.toString() + "] " + msg + "\n" + ExceptionUtils.getStackTrace(e) );
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}
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public void warning(String msg) {
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log(Level.WARNING, msg);
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}
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public void warning(String msg, Exception e) {
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log(Level.WARNING, msg, e);
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}
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public void info(String msg) {
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log(Level.INFO, msg);
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}
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public void fine(String msg) {
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log(Level.FINE, msg);
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}
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private void log(String msg) {
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String time = getTimeString();
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String line = "[" + time + "] " + msg + "\n";
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System.out.println(line);
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synchronized(buffer) {
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buffer.append(line);
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}
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}
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private String getTimeString() {
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return format.format( new Date() );
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}
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/* *******************************************************
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* Singleton
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*/
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private volatile static TaskLogger instance = null;
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private TaskLogger() {
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}
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public static TaskLogger getInstance() {
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if (instance == null) {
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instance = new TaskLogger();
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}
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return instance;
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}
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}
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