Asynchronous notification aka publisher/subscriber model is a powerful pattern. Both ano-plass and DistributeMe offered a way to do it, one with subject/observer pattern, the other with the classical EventChannels. The ano-plass subject/observer pattern was limited to the current vm. Now it can become global.
today I am going to speak about a concrete example of the MoSKito Control capabilities. Today we will build up a monitoring system, but not for WebApps as in previous posts, but for just plain java processes, that we are going to call daemons. Daemon, in my understanding, is just a plain old java bean/thread running in background in a separate JVM and doing some work. To make the post easier to write I created a small project on github that serves me as example: