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LogFormatter.java
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LogFormatter.java
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package nallar.tickthreading;
import nallar.tickthreading.util.DebugLevel;
import java.io.*;
import java.text.*;
import java.util.logging.*;
public class LogFormatter extends Formatter {
public static final String LINE_SEPARATOR = System.getProperty("line.separator");
private static SimpleDateFormat dateFormat = new SimpleDateFormat("MM-dd HH:mm:ss");
protected static final boolean colorEnabled = System.getProperty("tickthreading.color") != null;
public static void setFormat(boolean u, SimpleDateFormat dateFormat) {
if (dateFormat != null) {
LogFormatter.dateFormat = dateFormat;
}
}
protected boolean shouldColor() {
return false;
}
private static String getColorForLevel(Level level) {
return "\033[" + getColorNumberForLevel(level) + 'm';
}
private static String getColorNumberForLevel(Level level) {
if (level == Level.SEVERE) {
return "31";
} else if (level == Level.WARNING) {
return "33";
} else if (level == DebugLevel.DEBUG) {
return "35";
} else if (level == Level.INFO) {
return "32";
}
return "39";
}
protected static String getEndColor() {
return "\033[39m";
}
@Override
public String format(LogRecord record) {
StringBuilder formattedMessage = new StringBuilder();
long millis = record.getMillis();
String date;
SimpleDateFormat dateFormat = LogFormatter.dateFormat;
synchronized (dateFormat) {
date = dateFormat.format(millis);
}
formattedMessage.append(date);
Level level = record.getLevel();
formattedMessage.append(" [");
final boolean shouldColor = shouldColor();
if (shouldColor) {
formattedMessage.append(getColorForLevel(level));
}
formattedMessage.append(record.getLevel().getName().toUpperCase());
if (shouldColor) {
formattedMessage.append(getEndColor());
}
formattedMessage.append("] ");
String loggerName = record.getLoggerName();
formattedMessage
.append('[').append(loggerName == null ? "" : loggerName).append("] ")
.append(record.getMessage()).append(LINE_SEPARATOR);
// No need to throw this, we're in a log formatter!
@SuppressWarnings("ThrowableResultOfMethodCallIgnored")
Throwable throwable = record.getThrown();
if (throwable != null) {
if (throwable.getClass().getName().endsWith("ThreadStuckError")) {
return "";
}
if (throwable.getStackTrace().length == 0) {
formattedMessage.append("Stack trace unavailable for ").append(String.valueOf(throwable)).append('-').append(throwable.getClass().getName()).append(". Add -XX:-OmitStackTraceInFastThrow to your java parameters to see all stack traces.").append(LINE_SEPARATOR);
} else {
StringWriter stackTraceWriter = new StringWriter();
// No need to close this - StringWriter.close() does nothing, and PrintWriter.close() just calls it.
//noinspection IOResourceOpenedButNotSafelyClosed
throwable.printStackTrace(new PrintWriter(stackTraceWriter));
String output = stackTraceWriter.toString();
if (throwable.getClass() == Throwable.class) {
output = output.replace("java.lang.Throwable\n", "");
}
formattedMessage.append(output);
}
}
return formattedMessage.toString();
}
}