java log4j custom appender and pattern

Scruff

Hi,
i need to write a custom appender for log4j to write to a socket. I also need to write it in a specific string format so i guess i need to write a custom appender as well.
Anyone got any examples or can point out good resources on the web.

Cheers!

tempest

org.apache.log4j.net.SocketAppender (comes with log 4j, writes to socket).

Then use a Layout to format the data to write to the socket.

Scruff

ok i've created my own custom appender and its working fine except if i try to configure it using a xml configuration file.

if i try:
<appender name="remoteAppender" class="com.test.logging.RemoteAppender">
<param name="Host" value="localhost"/>
<param name="Port" value="11013"/>
</appender>

i get the following error :
log4j:WARN No such property [Host] in com.test.logging.RemoteAppender.
log4j:WARN No such property [Port] in com.test.logging.RemoteAppender.

why is it not setting the params propperly? how does log4j parse the xml config file and assign paramaters to the class?

tempest

Presumably you have a method called setPort(String port) and setHost(String host) methods on your class.

If that's the case then I don't know because it looks right (as long as the casing is the same in the set methods i.e. Port != setport).