README.md

OFFlowMod flow = new OFFlowMod(); // no builder pattern; not immutable
OFMatch match = new OFMatch();
ArrayList<OFAction> actions = new ArrayList<OFAction>();
OFActionOutput outputAction = new OFActionOutput();
match.setInputPort((short) 1); // not type-safe; many OpenFlow concepts are represented as shorts
match.setDataLayerType(Ethernet.TYPE_IPv4);
match.setWildcards(Wildcards.FULL.matchOn(Flag.IN_PORT).matchOn(Flag.DL_TYPE)); // wildcarding necessary
outputAction.setType(OFActionType.OUTPUT);
outputAction.setPort((short) 2); // raw types used; casting required
outputAction.setLength((short) OFActionOutput.MINIMUM_LENGTH);
actions(outputAction);
flow.setBufferId(-1);
flow.setActions(actions);
flow.setMatch(match);
flow.setLengthU(OFFlowMod.MINIMUM_LENGTH + outputAction.getLengthU()); // length must be set correctly
sw.write(flow);
ArrayList<OFAction> actions = new ArrayList<OFAction();
actions.add(myFactory.actions().buildOutput() // builder pattern used throughout
.setPort(OFPort.of(1)) // raw types replaced with objects for type-checking and readability
.build()); // list of immutable OFAction objects
OFFlowAdd flow = myFactory.buildFlowAdd()
.setMatch(myfactory.buildMatch()
.setExact(MatchField.IN_PORT, OFPort.of(1)) // type-checked matching
.setExact(MatchField.ETH_TYPE, EthType.IPv4))
.build()) // immutable Match object
.setActions(actions)
.setOutPort(OFPort.of(2))
.setBufferId(OFBufferId.NO_BUFFER)
.build(); // immutable OFFlowMod; no lengths to set; no wildcards to set
sw.write(flow);