Examples with NorthbounderException org.opennms.netmgt.alarmd.api.NorthbounderException used on opensource projects

Example 6 with NorthbounderException

use of org.opennms.netmgt.alarmd.api.NorthbounderException in project opennms by OpenNMS.

the class SyslogNorthbounder method forwardAlarms.

/**
     * Each implementation of the AbstractNorthbounder has a nice queue
     * (Nagle's algorithmic) and the worker thread that processes the queue
     * calls this method to send alarms to the northern NMS.
     *
     * @param alarms the alarms
     * @throws NorthbounderException the northbounder exception
     */
@Override
public void forwardAlarms(List<NorthboundAlarm> alarms) throws NorthbounderException {
    if (alarms == null) {
        String errorMsg = "No alarms in alarms list for syslog forwarding.";
        IllegalStateException e = new IllegalStateException(errorMsg);
        LOG.error(errorMsg, e);
        throw e;
    }
    LOG.info("Forwarding {} alarms to destination:{}", alarms.size(), m_destination.getName());
    SyslogIF instance;
    try {
        instance = Syslog.getInstance(m_destination.getName());
    } catch (SyslogRuntimeException e) {
        LOG.error("Could not find Syslog instance for destination: '{}': {}", m_destination.getName(), e);
        throw e;
    }
    /*
         * Iterate over the list of alarms to be forwarded N.
         */
    for (NorthboundAlarm alarm : alarms) {
        Integer count = alarm.getCount();
        if (count > 1 && m_destination.isFirstOccurrenceOnly()) {
            LOG.debug("Destination {} is configured for new alarm instances only.  Alarm has count of {}.", m_destination.getName(), count);
            continue;
        }
        LOG.debug("Creating formatted log message for alarm: {}.", alarm.getId());
        String syslogMessage;
        int level;
        try {
            LOG.debug("Making substitutions for tokens in message format for alarm: {}.", alarm.getId());
            String msgFormat = m_destination.getCustomMessageFormat(alarm);
            if (msgFormat == null) {
                msgFormat = getConfig().getMessageFormat();
            }
            syslogMessage = PropertiesUtils.substitute(msgFormat, createMapping(alarm));
            LOG.debug("Determining LOG_LEVEL for alarm: {}", alarm.getId());
            level = SyslogUtils.determineLogLevel(alarm.getSeverity());
            LOG.debug("Forwarding alarm: {} via syslog to destination: {}", alarm.getId(), m_destination.getName());
            instance.log(level, syslogMessage);
        } catch (Exception ex) {
            LOG.error("Caught exception sending to destination: '{}': {}", m_destination.getName(), ex);
        }
    }
}