91 lines
3.0 KiB
Java
91 lines
3.0 KiB
Java
package ru.kirillius.XCP.Logging;
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import ru.kirillius.XCP.Commons.Context;
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import ru.kirillius.java.utils.events.EventHandler;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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import java.util.logging.Handler;
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import java.util.logging.Level;
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import java.util.logging.LogRecord;
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public class LogHandlerImpl extends Handler {
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private final EventHandler<LogMessage> eventHandler;
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private final boolean debugging;
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public LogHandlerImpl(LoggingSystem loggingSystem, Context context) {
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eventHandler = loggingSystem.getEventHandler();
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debugging = context.getLaunchArgs().contains("--debug");
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}
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private final static SimpleDateFormat dateFormat = new SimpleDateFormat("dd.MM.yyyy HH:mm:ss", Locale.US);
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private String format(LogRecord logRecord) {
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var date = new Date(logRecord.getMillis());
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var builder = new StringBuilder();
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builder.append("[");
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builder.append(dateFormat.format(date));
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builder.append("][");
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builder.append(convertLevel(logRecord.getLevel()));
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builder.append("] ");
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builder.append(logRecord.getMessage().trim());
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var thrown = logRecord.getThrown();
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if (thrown != null) {
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builder.append("\nError thrown ").append(thrown.getClass().getSimpleName()).append(":").append(thrown.getMessage());
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if (debugging) {
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builder.append("\nStack trace:\n");
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try (var writer = new StringWriter()) {
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try (var printWriter = new PrintWriter(writer)) {
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thrown.printStackTrace(printWriter);
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builder.append(writer);
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}
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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}
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return builder.toString();
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}
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@Override
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public synchronized void publish(LogRecord logRecord) {
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//TODO сделать асинхронным чтобы не лочить треды
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print(logRecord);
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var message = LogMessage.builder().message(logRecord.getMessage()).level(convertLevel(logRecord.getLevel())).date(logRecord.getInstant()).build();
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try {
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eventHandler.invoke(message);
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} catch (Exception e) {
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print(new LogRecord(Level.SEVERE, "Unhandled error in logger event listener: " + e.getClass().getSimpleName() + ": " + e.getMessage()));
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}
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}
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private void print(LogRecord logRecord) {
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System.out.println(format(logRecord));
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}
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public LogLevel convertLevel(Level level) {
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if (level == Level.SEVERE) {
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return LogLevel.ERROR;
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}
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if (level == Level.WARNING) {
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return LogLevel.WARNING;
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}
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return LogLevel.INFO;
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}
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@Override
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public void flush() {
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}
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@Override
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public void close() throws SecurityException {
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}
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}
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