private String getTopic(FrameworkEvent frameworkEvent) {
        StringBuilder topic = new StringBuilder(FRAMEWORK_EVENT_TOPIC_PREFIX);

        switch (frameworkEvent.getType()) {
            case FrameworkEvent.STARTED:
                topic.append("STARTED");
                break;
            case FrameworkEvent.ERROR:
                topic.append("ERROR");
                break;
            case FrameworkEvent.PACKAGES_REFRESHED:
                topic.append("PACKAGES_REFRESHED");
                break;
            case FrameworkEvent.STARTLEVEL_CHANGED:
                topic.append("STARTLEVEL_CHANGED");
                break;
            case FrameworkEvent.WARNING:
                topic.append("WARNING");
                break;
            case FrameworkEvent.INFO:
                topic.append("INFO");
                break;
            default:
                return null;
        }

        return topic.toString();
    }
private String getTopic ( FrameworkEvent frameworkEvent ) { StringBuilder topic = new StringBuilder ( FRAMEWORK_EVENT_TOPIC_PREFIX ) ; switch ( frameworkEvent . getType ( ) ) { case FrameworkEvent . STARTED : topic . append ( "STARTED" ) ; break ; case FrameworkEvent . ERROR : topic . append ( "ERROR" ) ; break ; case FrameworkEvent . PACKAGES_REFRESHED : topic . append ( "PACKAGES_REFRESHED" ) ; break ; case FrameworkEvent . STARTLEVEL_CHANGED : topic . append ( "STARTLEVEL_CHANGED" ) ; break ; case FrameworkEvent . WARNING : topic . append ( "WARNING" ) ; break ; case FrameworkEvent . INFO : topic . append ( "INFO" ) ; break ; default : return null ; } return topic . toString ( ) ; }
Determine the appropriate topic to use for the Framework Event.

@param frameworkEvent
the framework event that is being adapted
@return the topic or null if the event is not supported