LinkdEventProcessor.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2006-2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
 *     http://www.opennms.org/
 *     http://www.opennms.com/
 *******************************************************************************/

package org.opennms.netmgt.linkd;

import org.opennms.netmgt.EventConstants;
import org.opennms.netmgt.capsd.InsufficientInformationException;
import org.opennms.netmgt.model.events.annotations.EventHandler;
import org.opennms.netmgt.model.events.annotations.EventListener;
import org.opennms.netmgt.xml.event.Event;

/**
 * @author <a href="mailto:antonio@opennms.it">Antonio Russo</a>
 * @author <a href="mailto:matt@opennms.org">Matt Brozowski </a>
 * @author <a href="http://www.opennms.org/">OpenNMS </a>
 */
@EventListener(name="OpenNMS.Linkd")
public final class LinkdEventProcessor {

    private Linkd m_linkd;

    /**
     * @param linkd the linkd to set
     */
    public void setLinkd(Linkd linkd) {
        this.m_linkd = linkd;
    }

    public Linkd getLinkd() {
        return m_linkd;
    }

    /**
     * Handle a Node Deleted Event
     * 
     * @param event
     */
    @EventHandler(uei=EventConstants.NODE_DELETED_EVENT_UEI)
    public void handleNodeDeleted(Event event) throws InsufficientInformationException {

        EventUtils.checkNodeId(event);

        // Remove the deleted node from the scheduler if it's an SNMP node
        m_linkd.deleteNode(event.getNodeid().intValue());
        // set to status = D in all the rows in table
        // atinterface, iprouteinterface, datalinkinterface, stpnode, stpinterface
    }

    /**
     * Handle Interface Deleted Event
     * 
     * @param event
     */
    @EventHandler(uei=EventConstants.INTERFACE_DELETED_EVENT_UEI)
    public void handleInterfaceDeleted(Event event) throws InsufficientInformationException {

        EventUtils.checkNodeId(event);
        EventUtils.checkInterfaceOrIfIndex(event);
        int ifIndex = -1;
        if(event.hasIfIndex()) {
            ifIndex = event.getIfIndex();
        }

        m_linkd.deleteInterface(event.getNodeid().intValue(), event.getInterface(), ifIndex);
        // set to status = D in all the rows in table
        // atinterface, iprouteinterface, datalinkinterface, stpinterface
    }

    /**
     * Handle a Node Gained Service Event if service is SNMP
     * 
     * @param event
     */
    @EventHandler(uei=EventConstants.NODE_GAINED_SERVICE_EVENT_UEI)
    public void handleNodeGainedService(Event event) throws InsufficientInformationException {

        EventUtils.checkNodeId(event);

        m_linkd.scheduleNodeCollection(event.getNodeid().intValue());
    }

    /**
     * Handle a Node Lost Service Event when service lost is SNMP
     * 
     * @param event
     */
    @EventHandler(uei=EventConstants.NODE_LOST_SERVICE_EVENT_UEI)
    public void handleNodeLostService(Event event) throws InsufficientInformationException {

        EventUtils.checkNodeId(event);

        // Remove the deleted node from the scheduler
        m_linkd.suspendNodeCollection(event.getNodeid().intValue());
        // set to status = N in all the rows in table
        // atinterface, iprouteinterface, datalinkinterface,
    }

    /**
     * Handle a Node Regained Service Event where service is SNMP
     * 
     * @param event
     */
    @EventHandler(uei=EventConstants.NODE_REGAINED_SERVICE_EVENT_UEI)
    public void handleRegainedService(Event event) throws InsufficientInformationException {

        EventUtils.checkNodeId(event);

        m_linkd.wakeUpNodeCollection(event.getNodeid().intValue());
    }
} // end class