On 05/01/2014 09:19 PM, Bobby Krupczak wrote: > - If I understand it correctly, the basic interface of a detector is > simply given an InetAddress and is asked "does that system have the > protocol/service on it?" I'm free to figure it out however I would > like and I return true/false. Is this a correct understanding?
Yes it is. The logic is up to you -- the LoopDetector, for example, does not even perform any network operations in making its decision. > - Is there one instance of an XmpDetector created for the entire > running ONMS instance (like collectors) or are there many instances > of XmpDetectors ? They're beans, and not singletons. Your detector class may (and probably should) have member variables, with getters and setters. The web UI for configuring detectors uses reflection to show the user a list of parameters that are appropriate for a given detector class. > - If the interface is that simple, do I need to bother to try to > inherit from BasicDetector or SyncDetector? Seems that this could go either way. I'm not familiar enough with the various abstract classes to steer you confidently in a particular direction, but my gut says BasicDetector might be a good choice. > - My protocol is synchronous; do I need to somehow declare that or let > the creater of my detector know this? Not sure on that one either. > - How do I glue my newly created XmpDetector back into the ONMS hive > so that its invoked automatically? I'm guessing some sort of > etc/xml file? There's some semi-magical Spring wiring that needs to be included in the JAR. Relative to your subproject's root, this should live at src/main/resources/META-INF/opennms/detectors.xml. A good example to crib from might be the one for protocols/nsclient. -jeff
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