@Override
@LogMessageDoc(
level = "ERROR",
message = "Failed to clear all flows on switch {switch}",
explanation = "An I/O error occured while trying to clear " + "flows on the switch.",
recommendation = LogMessageDoc.CHECK_SWITCH)
public void clearAllFlowMods() {
// Delete all pre-existing flows
OFMatch match = new OFMatch().setWildcards(OFMatch.OFPFW_ALL);
OFMessage fm =
((OFFlowMod) floodlightProvider.getOFMessageFactory().getMessage(OFType.FLOW_MOD))
.setMatch(match)
.setCommand(OFFlowMod.OFPFC_DELETE)
.setOutPort(OFPort.OFPP_NONE)
.setLength(U16.t(OFFlowMod.MINIMUM_LENGTH));
fm.setXid(getNextTransactionId());
OFMessage barrierMsg =
(OFBarrierRequest)
floodlightProvider.getOFMessageFactory().getMessage(OFType.BARRIER_REQUEST);
barrierMsg.setXid(getNextTransactionId());
try {
List<OFMessage> msglist = new ArrayList<OFMessage>(1);
msglist.add(fm);
write(msglist);
msglist = new ArrayList<OFMessage>(1);
msglist.add(barrierMsg);
write(msglist);
} catch (Exception e) {
log.error("Failed to clear all flows on switch " + this, e);
}
}
@Override
public Future<OFFeaturesReply> querySwitchFeaturesReply() throws IOException {
OFMessage request =
floodlightProvider.getOFMessageFactory().getMessage(OFType.FEATURES_REQUEST);
request.setXid(getNextTransactionId());
OFFeaturesReplyFuture future = new OFFeaturesReplyFuture(threadPool, this, request.getXid());
this.featuresFutureMap.put(request.getXid(), future);
List<OFMessage> msglist = new ArrayList<OFMessage>(1);
msglist.add(request);
this.write(msglist);
return future;
}