/*
* Copyright (c) 2009 Red Hat, Inc.
* -------------------------------------
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.core.logging.impl;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.time.Instant;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.logging.LogRecord;
/**
* @author <a href="mailto:andy.taylor@jboss.org">Andy Taylor</a>
*/
public class VertxLoggerFormatter extends java.util.logging.Formatter {
private static String LINE_SEPARATOR = System.getProperty("line.separator");
@Override
public String format(final LogRecord record) {
OffsetDateTime date = fromMillis(record.getMillis());
StringBuilder sb = new StringBuilder();
// Minimize memory allocations here.
sb.append("[").append(Thread.currentThread().getName()).append("] ");
sb.append(date.format(DateTimeFormatter.ISO_OFFSET_DATE_TIME)).append(" ");
sb.append(record.getLevel()).append(" [");
sb.append(record.getLoggerName()).append("]").append(" ");
sb.append(record.getMessage());
sb.append(VertxLoggerFormatter.LINE_SEPARATOR);
if (record.getThrown() != null) {
try {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
record.getThrown().printStackTrace(pw);
pw.close();
sb.append(sw.toString());
} catch (Exception ex) {
ex.printStackTrace();
}
}
return sb.toString();
}
private static OffsetDateTime fromMillis(long epochMillis) {
return OffsetDateTime.ofInstant(Instant.ofEpochMilli(epochMillis), ZoneId.systemDefault());
}
}