import net.floodlightcontroller.util.OFMatchWithSwDpid; //导入依赖的package包/类
@Override
public void topologyChanged(List<LDUpdate> appliedUpdates) {
    for (LDUpdate ldu : appliedUpdates) {
        if (ldu.getOperation()
               .equals(ILinkDiscovery.UpdateOperation.PORT_DOWN)) {

            // Get the switch ID for the OFMatchWithSwDpid object
            IOFSwitch affectedSwitch = switchService.getSwitch(ldu.getSrc());

            // Create an OFMatchReconcile object
            OFMatchReconcile ofmr = new OFMatchReconcile();

            // Generate an OFMatch objects for the OFMatchWithSwDpid object
            Match match = affectedSwitch.getOFFactory().buildMatch().build(); // nothing specific set, so all wildcarded

            // Generate the OFMatchWithSwDpid
            OFMatchWithSwDpid ofmatchsw = new OFMatchWithSwDpid(match, affectedSwitch.getId());

            // Set the action to update the path to remove flows routing
            // towards the downed port
            ofmr.rcAction = OFMatchReconcile.ReconcileAction.UPDATE_PATH;

            // Set the match, with the switch dpid
            ofmr.ofmWithSwDpid = ofmatchsw;

            // Assign the downed port to the OFMatchReconcile's outPort data
            // member (I added this to
            // the OFMatchReconcile class)
            ofmr.outPort = ldu.getSrcPort();

            // Tell the reconcile manager to reconcile matching flows
            frm.reconcileFlow(ofmr, EventPriority.HIGH);
        }
    }
}
 

import net.floodlightcontroller.util.OFMatchWithSwDpid; //导入依赖的package包/类
public OFMatchReconcile(OFMatchReconcile copy) {
    ofmWithSwDpid =
        new OFMatchWithSwDpid(copy.ofmWithSwDpid.getMatch(),
                copy.ofmWithSwDpid.getDpid());
    priority = copy.priority;
    action = copy.action;
    cookie = copy.cookie;
    appInstName = copy.appInstName;
    newAppInstName = copy.newAppInstName;
    rcAction = copy.rcAction;
    outPort = copy.outPort;
    cntx = new FloodlightContext();
    origReconcileQueryEvent = copy.origReconcileQueryEvent;
}