Examples with RuleSet org.opennms.netmgt.correlation.drools.config.RuleSet used on opensource projects

Example 1 with RuleSet

use of org.opennms.netmgt.correlation.drools.config.RuleSet in project opennms by OpenNMS.

the class DroolsCorrelationEngine method reloadConfig.

@Override
public void reloadConfig() {
    EventBuilder ebldr = new EventBuilder(EventConstants.RELOAD_DAEMON_CONFIG_SUCCESSFUL_UEI, getName());
    ebldr.addParam(EventConstants.PARM_DAEMON_NAME, "DroolsCorrelationEngine-" + m_name);
    try {
        LOG.info("Reloading configuration for engine {}", m_name);
        EngineConfiguration cfg = JaxbUtils.unmarshal(EngineConfiguration.class, m_configPath);
        Optional<RuleSet> opt = cfg.getRuleSetCollection().stream().filter(rs -> rs.getName().equals(getName())).findFirst();
        if (opt.isPresent()) {
            marshallStateToDisk(true);
            opt.get().updateEngine(this);
            initialize();
        } else {
            ebldr.setUei(EventConstants.RELOAD_DAEMON_CONFIG_FAILED_UEI);
            ebldr.addParam(EventConstants.PARM_REASON, "RuleSet not found on " + m_configPath);
        }
    } catch (Exception e) {
        ebldr.setUei(EventConstants.RELOAD_DAEMON_CONFIG_FAILED_UEI);
        ebldr.addParam(EventConstants.PARM_REASON, e.getMessage());
    } finally {
        sendEvent(ebldr.getEvent());
    }
}

Example 2 with RuleSet

use of org.opennms.netmgt.correlation.drools.config.RuleSet in project opennms by OpenNMS.

the class DroolsCorrelationEngineBuilder method doAddAndRemoveEngines.

// This handles only the addition of new engines and the removal of existing engines.
// For updating existing engines, use the appropriate value for the daemonName
private void doAddAndRemoveEngines() {
    LOG.info("Analyzing directory {} to add/remove drools engines...", m_configDirectory);
    EventBuilder ebldr = null;
    try {
        final PluginConfiguration[] newPlugins = locatePluginConfigurations();
        final List<RuleSet> newEngines = Arrays.stream(newPlugins).peek(PluginConfiguration::readConfig).flatMap(pc -> pc.getRuleSets().stream()).collect(Collectors.toList());
        final List<RuleSet> currentEngines = Arrays.stream(m_pluginConfigurations).flatMap(pc -> pc.getRuleSets().stream()).collect(Collectors.toList());
        LOG.debug("Current engines: {}", currentEngines);
        LOG.debug("New engines: {}", newEngines);
        // Find old engines to remove
        currentEngines.stream().filter(en -> !newEngines.contains(en)).forEach(en -> {
            LOG.warn("Deleting engine {}", en);
            m_correlator.removeCorrelationEngine(en.getName());
        });
        // Find new engines to add
        newEngines.stream().filter(en -> !currentEngines.contains(en)).forEach(en -> {
            LOG.warn("Adding engine {}", en);
            addEngine(newPlugins, en);
        });
        m_pluginConfigurations = newPlugins;
        ebldr = new EventBuilder(EventConstants.RELOAD_DAEMON_CONFIG_SUCCESSFUL_UEI, getName());
        ebldr.addParam(EventConstants.PARM_DAEMON_NAME, getName());
    } catch (Exception ex) {
        LOG.error("Cannot process reloadDaemonConfig", ex);
        ebldr = new EventBuilder(EventConstants.RELOAD_DAEMON_CONFIG_FAILED_UEI, getName());
        ebldr.addParam(EventConstants.PARM_DAEMON_NAME, getName());
        ebldr.addParam(EventConstants.PARM_REASON, ex.getMessage());
    } finally {
        if (ebldr != null)
            try {
                m_eventIpcManager.send(ebldr.getEvent());
            } catch (EventProxyException epx) {
                LOG.error("Can't send reloadDaemonConfig status event", epx);
            }
    }
}

Example 3 with RuleSet

use of org.opennms.netmgt.correlation.drools.config.RuleSet in project opennms by OpenNMS.

the class DroolsCorrelationEngineBuilder method onEvent.

@Override
public void onEvent(Event e) {
    if (e.getUei().equals(EventConstants.RELOAD_DAEMON_CONFIG_UEI)) {
        final String daemonName = getDaemonNameFromReloadDaemonEvent(e);
        if (daemonName != null && daemonName.equals(getName())) {
            doAddAndRemoveEngines();
            return;
        }
    }
    if (e.getUei().equals(EventConstants.RELOAD_DAEMON_CONFIG_FAILED_UEI)) {
        final String daemonName = getDaemonNameFromReloadDaemonEvent(e);
        Matcher m = Pattern.compile(getName() + "-(.+)$").matcher(daemonName);
        if (m.find()) {
            final String engineName = m.group(1);
            LOG.warn("An error was detected while reloading engine {}, this engine will be removed. Fix the error and try again.", engineName);
            m_correlator.removeCorrelationEngine(engineName);
            for (PluginConfiguration p : m_pluginConfigurations) {
                final RuleSet set = p.getRuleSets().stream().filter(r -> r.getName().equals(engineName)).findFirst().orElse(null);
                if (set != null) {
                    p.getRuleSets().remove(set);
                }
            }
        }
    }
}