I need to fetch the Event that triggered a Notification. I have written an
implementation of NotificationStrategy, which is correctly invoked by
notifd. The notification places the eventId into the text message, which is
included in the list of arguments passed to NotificationStrategy.send(). I
log this information, so I am sure it is being received correctly.
My code then extracts the eventId, parses it into an integer, eid, and tries
calling EventFactory.getEvent(eid). It gets to that point, but the call
never returns. I catch SQLException, and that is not thrown either.
I tried catching Throwable and found the problem to be
java.lang.NoClassDefFoundError: org/opennms/web/event/EventFactory
I am guessing this is caused by the EventFactory being loaded by a different
classloader than my NotificationStrategy. This had me go look for another
way to get the event, using the jars in lib and not web-apps.
I was trying to learn more about the API and noticed that although
http://www.opennms.org/documentation/java-apidocs-stable/
org/opennms/netmgt/xml/event/Event.html
exists, if you go to the frame view, this class and its package are not in
the list of packages and classes.
I found that what I needed was org.opennms.netmgt.xml.event.Event, which I
can get from org.opennms.netmgt.xml.event.NotificationFactory. This would
have been easier to find if the Javadoc included that package. Also,having
the Uses page when I am trying to learn an API. This lets me work backwards
from what I want, in this case an Event.
Once I have my whole task worked out, I'll write something up for the Wiki.
If you could add to your (very long) ToDoList to check why the Javadoc is
out of sync (and add Uses if possible), I know it would make things like
this easier for me.
Thanks for OpenNMS.
Gary Levin
RRC 1N345
Telcordia Technologies
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