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PatchLog.java
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PatchLog.java
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package nallar.tickthreading;
import nallar.reporting.Reporter;
import java.io.*;
import java.util.*;
import java.util.logging.*;
@SuppressWarnings({"UnusedDeclaration", "UseOfSystemOutOrSystemErr"})
public class PatchLog {
public static final Logger LOGGER = Logger.getLogger("TTPatcher");
public static final boolean debug = System.getProperty("tickthreading.debug") != null;
public static final Level DEBUG = new Level("DEBUG", Level.SEVERE.intValue(), null) {
// Inner class as Level's constructor is protected, so that user log levels will be of their own class.
};
private static Handler handler;
@SuppressWarnings("UseOfArchaicSystemPropertyAccessors") // Need a default value.
private static final int numberOfLogFiles = Integer.getInteger("tickthreading.numberOfLogFiles", 5);
private static final File logFolder = new File("TTPatcherLogs");
static {
try {
final Logger parent = Logger.getLogger("TickThreading");
if (parent == null) {
throw new NoClassDefFoundError();
}
LOGGER.setParent(parent);
LOGGER.setUseParentHandlers(true);
LOGGER.addHandler(new Handler() {
private final LogFormatter logFormatter = new LogFormatter();
@Override
public void publish(LogRecord record) {
if (parent.getHandlers().length == 0) {
System.out.print(logFormatter.format(record));
}
}
@Override
public void flush() {
}
@Override
public void close() throws SecurityException {
}
});
} catch (NoClassDefFoundError ignored) {
System.err.println("Failed to get parent logger.");
LOGGER.setUseParentHandlers(false);
LOGGER.addHandler(new Handler() {
private final LogFormatter logFormatter = new LogFormatter();
@Override
public void publish(LogRecord record) {
System.out.print(logFormatter.format(record));
}
@Override
public void flush() {
}
@Override
public void close() throws SecurityException {
}
});
}
LOGGER.setLevel(Level.ALL);
setFileName("patcher", Level.ALL, LOGGER);
}
public static void setFileName(String name, final Level minimumLevel, Logger... loggers) {
logFolder.mkdir();
for (int i = numberOfLogFiles; i >= 1; i--) {
File currentFile = new File(logFolder, name + '.' + i + ".log");
if (currentFile.exists()) {
if (i == numberOfLogFiles) {
currentFile.delete();
} else {
currentFile.renameTo(new File(logFolder, name + '.' + (i + 1) + ".log"));
}
}
}
final File saveFile = new File(logFolder, name + ".1.log");
try {
RandomAccessFile randomAccessFile = new RandomAccessFile(saveFile, "rw");
try {
randomAccessFile.setLength(0);
} finally {
randomAccessFile.close();
}
//noinspection IOResourceOpenedButNotSafelyClosed
handler = new Handler() {
private final LogFormatter logFormatter = new LogFormatter();
private final BufferedWriter outputWriter = new BufferedWriter(new FileWriter(saveFile));
@Override
public void publish(LogRecord record) {
if (record.getLevel().intValue() >= minimumLevel.intValue()) {
try {
outputWriter.write(logFormatter.format(record));
} catch (IOException ignored) {
// Can't log here, might cause infinite recursion
}
}
}
@Override
public void flush() {
try {
outputWriter.flush();
} catch (IOException ignored) {
}
}
@Override
public void close() throws SecurityException {
try {
outputWriter.close();
} catch (IOException ignored) {
// ignored - shouldn't log if logging fails
}
}
};
for (Logger logger : loggers) {
logger.addHandler(handler);
}
} catch (IOException e) {
PatchLog.severe("Can't write logs to disk", e);
}
}
public static void flush() {
if (handler != null) {
handler.flush();
}
}
public static void debug(String msg) {
debug(msg, null);
}
public static void severe(String msg) {
LOGGER.severe(msg);
}
public static void warning(String msg) {
LOGGER.warning(msg);
}
public static void info(String msg) {
LOGGER.info(msg);
}
public static void config(String msg) {
LOGGER.config(msg);
}
public static void fine(String msg) {
LOGGER.fine(msg);
}
public static void finer(String msg) {
LOGGER.finer(msg);
}
public static void finest(String msg) {
LOGGER.finest(msg);
}
public static void severe(String msg, Throwable t, boolean report) {
if (report) {
Reporter.report(t);
}
severe(msg, t);
}
public static void debug(String msg, Throwable t) {
if (debug) {
LOGGER.log(DEBUG, msg, t);
} else {
throw new Error("Logged debug message when not in debug mode.");
// To prevent people logging debug messages which will just be ignored, wasting resources constructing the message.
// (s/people/me being lazy/ :P)
}
}
public static void severe(String msg, Throwable t) {
LOGGER.log(Level.SEVERE, msg, t);
}
public static void warning(String msg, Throwable t) {
LOGGER.log(Level.WARNING, msg, t);
}
public static void info(String msg, Throwable t) {
LOGGER.log(Level.INFO, msg, t);
}
public static void config(String msg, Throwable t) {
LOGGER.log(Level.CONFIG, msg, t);
}
public static void fine(String msg, Throwable t) {
LOGGER.log(Level.FINE, msg, t);
}
public static void finer(String msg, Throwable t) {
LOGGER.log(Level.FINER, msg, t);
}
public static void finest(String msg, Throwable t) {
LOGGER.log(Level.FINEST, msg, t);
}
public static String classString(Object o) {
return "c " + o.getClass().getName() + ' ';
}
public static void log(Level level, Throwable throwable, String s) {
LOGGER.log(level, s, throwable);
}
private static boolean hasDuplicates(Object[] array) {
return hasDuplicates(Arrays.asList(array));
}
private static boolean hasDuplicates(List list) {
if (list == null) {
return false;
}
Set<Object> set = Collections.newSetFromMap(new IdentityHashMap<Object, Boolean>());
for (Object o : list) {
if (!set.add(o)) {
return true;
}
}
return false;
}
}