Put this in your pom

<repositories>
  <repository>
      <id>ixcode</id>
      <url>http://repo.ixcode.org/public/</url>
      <snapshots>
          <enabled>true</enabled>
      </snapshots>
      <releases>
          <enabled>true</enabled>
      </releases>
  </repository>
</repositories>

<dependency>
    <groupId>org.ixcode</groupId>
    <artifactId>logback-joda</artifactId>
    <version>1.0</version>
</dependency>

Or if you prefer to dine on clojure

  :repositories {"sonatype-oss-public" "https://oss.sonatype.org/content/groups/public/"
                 "ixcode-repo" "http://repo.ixcode.org/public"}

  :dependencies [[org.clojure/clojure "1.5.1"]
                 [org.ixcode/logback-joda "1.0"]
                 ]

You can then do either this (Java)

LogbackJodaContext.configure();

LogbackJodaContext.configureRootLogger(LogbackJodaContext.OFFSET_TIMEZONE_FORMAT);

log.info("Hello Logback and Joda!");

or in clojure

(LogbackJodaContext/configure)

Note for both of these, you have to then re-configure the logging before it will work - existing and started appenders will still be using the old context.

OR you can just whack it in your logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

        <encoder class="org.ixcode.logback.joda.JodaTimePatternLayoutEncoder">
            <pattern>[%d{yyyy-MM-DD'T'HH:mm:ss.SSSZZ z}]  %msg%n</pattern>
        </encoder>
    </appender>

    <logger name="com.some.package" level="INFO"/>


    <root level="info">
        <appender-ref ref="STDOUT" />
    </root>
</configuration>

We've put some examples in the examples directory in both languages. The clojure one uses https://github.com/ixcode/clj-logging-config - ixcodes' fork of https://github.com/malcolmsparks/clj-logging-config so you will need to clone and install that too.

The standard formatters for logback (and infact log4j) use the standard java date time formatters. This is simple and effective. However, there is an issue:

yyyy-MM-DD'T'HH:mm:ss.SSSZZ z

DateFormat df = new SimpleDateFormat("yyyy-MM-DD'T'HH:mm:ss.SSSZZ z");

String timestamp = df.format(new Date(1390060787128L));

assertThat(timestamp, is("2014-01-18T15:59:47.128+0000 GMT"));

Notice the time format at the end +0000. RFC 3339 says that the time offset should be like:

+00:00

Although the documentation of Java 7 says that it should work by doing this "yyyy-MM-dd'T'HH:mm:ss.SSSXXX", it doesn't on my mac. But Joda time does

DateTimeFormatter df = DateTimeFormat.forPattern("yyyy-MM-DD'T'HH:mm:ss.SSSZZ z");

String timestamp = df.print(1390060787128L);

assertThat(timestamp, is("2014-01-18T15:59:47.128+00:00 GMT"));

This library allows you to set a format in logback using Joda Time instead.

Accorring to this stack overflow question. This should all work.

The issue is to do with being in GMT. Here is the source code from SimpleDateFormat that is responsible for formatting the ISO8601 timezone:

case PATTERN_ISO_ZONE:   // 'X'
  value = calendar.get(Calendar.ZONE_OFFSET)
          + calendar.get(Calendar.DST_OFFSET);

  if (value == 0) {
      buffer.append('Z');
      break;
  }

  value /=  60000;
  if (value >= 0) {
      buffer.append('+');
  } else {
      buffer.append('-');
      value = -value;
  }

  CalendarUtils.sprintf0d(buffer, value / 60, 2);
  if (count == 1) {
      break;
  }

  if (count == 3) {
      buffer.append(':');
  }
  CalendarUtils.sprintf0d(buffer, value % 60, 2);
  break;

The thing is, if you are in GMT, the value will be 0 and hence it puts a Z for UTC timezone, instead of +00:00 which you would expect.

You can see this, if you change the timezone to be somewhere else:

DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX z");
df.setTimeZone(TimeZone.getTimeZone("CST"));

String timestamp = df.format(new Date(1390060787128L));

System.out.println("Timestamp with XXX in java: " + timestamp);

assertThat(timestamp, is("2014-01-18T09:59:47.128-06:00 CST"));

So, we could re-implement SimpleDateFormat, or just use JodaTime which does it the way we want.

TODO:

https://docs.sonatype.org/display/Repository/Sonatype+OSS+Maven+Repository+Usage+Guide?__utma=246996102.492455761.1390084270.1390084270.1390084270.1&__utmb=246996102.10.10.1390084270&__utmc=246996102&__utmx=-&__utmz=246996102.1390084270.1.1.utmcsr=maven.apache.org|utmccn=(referral)|utmcmd=referral|utmcct=/guides/mini/guide-central-repository-upload.html&__utmv=-&__utmk=120621451#SonatypeOSSMavenRepositoryUsageGuide-11.WhatDoPeopleThinkAboutOSSRH

Publish on maven

Or follow this:

https://code.google.com/p/peter-lavalle/wiki/MavenOnDropBox