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Abhijit,
On 5/25/16 4:03 PM, Abhijit Das wrote:
> I am wanting to change the access logging format to JSON (for
> easier parsing with logstash)
>
> I currently have the following config in my server.xml … How would
> i change this to JSON formatted?
>
> <Valve className="org.apache.catalina.valves.RemoteIpValve"
> internalProxies="1\.1\.1\.1" trustedProxies="1\.1\.1\.1"
> remoteIpHeader="X-Forwarded-For" proxiesHeader="x-forwarded-by"
> requestAttributesEnabled="true"/>
>
> <Valve className="org.apache.catalina.valves.AccessLogValve"
> directory="logs" prefix="localhost_access_log" suffix=".txt"
> pattern="%t %h %{X-AUSERNAME}o %{Referer}i %l %S %{User-Agent}i %U
> %s %r %q %A %v %p %b %I %D" requestAttributesEnabled="true"
> resolveHosts="false"/>
AccessLogValve was written to conform to the age-old httpd log file
format, subject to whatever "pattern" you want to apply.
You could sprinkle your pattern full of JSON stuff, but then
JSON-escaping wouldn't actually occur, etc.
If you want JSON logging, you are going to have to write your own valve.
If you want to extend + override the existing AccessLogValve to create
a JSONAccessLogValve, consider contributing that code back to the
community.
- -chris
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=njcz
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