sample

Logging Sample Application

A simple CF sample application that we cloned from cloudfoundry-sticky-session and tweaked to provide a sample for the logging and instrumentation features.

Currently configured to use log4j2 as the logging implementation.

It uses a environment variable RANDOM_SLEEP which, when set to true will introduce a artificial delay (up to 1 sec).

Running it locally

You can use the following Maven target to run the application locally

mvn tomcat8:run

Once the tomcat container has started, you can access the application via http://localhost:8080/logging-sample-app

Here's a table of "interesting" request URLs you may want to load:

URL	Comment
/	Handled by standard servlet. Prints all environment variables, HTTP request headers and a random "greeting" message.
/<n>	Like the one above, but also computes the <n>th Fibonacci number. Computation happens recursively, so you can use higher values for n to get long response times or even crash the application
/stacktrace	Handled by standard servlet. Generates a 500 response and prints a stack trace
/jersey?greeting=<msg>	Handled by Jersey container. Will print the line Hello from Jersey: <msg>
/jersey/forward	Handled by Jersey container. Will use a Jersey client to "forward" to default servlet.
/jersey/forward?q=<n>	Again handled by Jersey container and forwarded to default servlet as /<n>.