2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.openflowplugin.openflow.internal;
11 import org.opendaylight.controller.sal.core.Node;
12 import org.opendaylight.controller.sal.core.NodeConnector;
13 import org.opendaylight.controller.sal.core.NodeConnector.NodeConnectorIDType;
14 import org.opendaylight.controller.sal.utils.NetUtils;
15 import org.opendaylight.controller.sal.utils.NodeConnectorCreator;
16 import org.openflow.protocol.OFPort;
17 import org.slf4j.Logger;
18 import org.slf4j.LoggerFactory;
21 * Abstract class which provides the utilities for converting the Openflow port
22 * number to the equivalent NodeConnector and vice versa
27 public abstract class PortConverter {
28 private static final Logger log = LoggerFactory
29 .getLogger(PortConverter.class);
30 private static final int maxOFPhysicalPort = NetUtils
31 .getUnsignedShort(OFPort.OFPP_MAX.getValue());
34 * Converts the Openflow port number to the equivalent NodeConnector.
36 public static NodeConnector toNodeConnector(short ofPort, Node node) {
37 // Restore original OF unsigned 16 bits value for the comparison
38 int unsignedOFPort = NetUtils.getUnsignedShort(ofPort);
39 log.trace("Openflow port number signed: {} unsigned: {}", ofPort,
41 if (unsignedOFPort > maxOFPhysicalPort) {
42 if (ofPort == OFPort.OFPP_LOCAL.getValue()) {
43 return NodeConnectorCreator.createNodeConnector(
44 NodeConnectorIDType.SWSTACK,
45 NodeConnector.SPECIALNODECONNECTORID, node);
46 } else if (ofPort == OFPort.OFPP_NORMAL.getValue()) {
47 return NodeConnectorCreator.createNodeConnector(
48 NodeConnectorIDType.HWPATH,
49 NodeConnector.SPECIALNODECONNECTORID, node);
50 } else if (ofPort == OFPort.OFPP_CONTROLLER.getValue()) {
51 return NodeConnectorCreator.createNodeConnector(
52 NodeConnectorIDType.CONTROLLER,
53 NodeConnector.SPECIALNODECONNECTORID, node);
56 return NodeConnectorCreator.createNodeConnector(ofPort, node);
60 * Converts the NodeConnector to the equivalent Openflow port number
62 public static short toOFPort(NodeConnector salPort) {
63 log.trace("SAL Port", salPort);
64 if (salPort.getType().equals(NodeConnectorIDType.SWSTACK)) {
65 return OFPort.OFPP_LOCAL.getValue();
66 } else if (salPort.getType().equals(NodeConnectorIDType.HWPATH)) {
67 return OFPort.OFPP_NORMAL.getValue();
68 } else if (salPort.getType().equals(NodeConnectorIDType.CONTROLLER)) {
69 return OFPort.OFPP_CONTROLLER.getValue();
71 return (Short) salPort.getID();