Slack Appender ("Logger") for log4j

Log4j Appender for sending slack messages

Dependencies

For now, depends on both gson and okhttp.

Using the API with Log4j 1.x

With Gradle

    compile 'be.olsson:slack-appender:0.99.7'

With Maven

    <dependency>
            <groupId>be.olsson</groupId>
            <artifactId>slack-appender</artifactId>
            <version>0.99.7</version>
    </dependency>

Using

Example with both Console and Slack

log4j.appender.Foo=org.apache.log4j.ConsoleAppender
log4j.appender.Foo.layout=org.apache.log4j.PatternLayout
log4j.appender.Foo.layout.conversionPattern=%-5p - [%t] %-26.26c{1} - %m\n

log4j.appender.Bar=be.olsson.slackappender.SlackAppender
log4j.appender.Bar.layout=org.apache.log4j.PatternLayout
log4j.appender.Bar.layout.conversionPattern=%-5p - [%t] %-26.26c{1} - %n

log4j.rootLogger=INFO,Foo,Bar

Minimal:

log4j.appender.Slack=be.olsson.slackappender.SlackAppender
log4j.rootLogger=INFO,Slack

Using the API with Log4j 2.x

With Gradle

    compile 'be.olsson:slack-appender:*'

With Maven

    <dependency>
            <groupId>be.olsson</groupId>
            <artifactId>slack-appender</artifactId>
            <version>*TBD*</version>
    </dependency>

Using

Example with both Console and Slack (but only error logging goes on slack)

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
    <Appenders>
	<Console name="StdOut" target="SYSTEM_OUT">
	    <PatternLayout pattern="%-5p - [%t] %-26.26c{1} - %X{tag} - %m\n"/>
	</Console>
	<Slack name="Slack" channel="log4jslackchannel">
	    <PatternLayout pattern="%-5p - [%t]"/>
	</Slack>
    </Appenders>
    <Loggers>
	<Root level="info">
	    <AppenderRef ref="StdOut"/>
	    <AppenderRef ref="Slack" level="error"/>
	</Root>
    </Loggers>
</Configuration>

Minimal:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
    <Appenders>
	<Slack name="Slack" channel="log4jslackchannel">
	    <PatternLayout pattern="%-5p - [%t]"/>
	</Slack>
    </Appenders>
    <Loggers>
	<Root level="info">
	    <AppenderRef ref="Slack" level="info"/>
	</Root>
    </Loggers>
</Configuration>

Build

./gradlew build

Please note that the tests will NOT work unless SLACK_WEBHOOK is set as an environment variables (or java property or ~/.gradle/gradle.properties).

Releasing

SLACK_WEBHOOK=https://hooks.slack.com/services/xxxxxx/yyyyyyy/zzzzzzz ./gradlew release