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
8 package org.opendaylight.openflowplugin.openflow.md.core;
10 import java.util.ArrayList;
11 import java.util.List;
13 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.HelloElementType;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloInput;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.HelloInputBuilder;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.Elements;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.hello.ElementsBuilder;
23 public abstract class MessageFactory {
28 * @return HelloInput without elements
30 public static HelloInput createHelloInput(short helloVersion, long helloXid) {
31 return createHelloInput(helloVersion, helloXid, null);
35 * @param highestVersion
37 * @return builder with prepared header
39 private static HelloInputBuilder prepareHelloInputBuilder(
40 short highestVersion, long xid) {
41 HelloInputBuilder helloInputbuilder = new HelloInputBuilder();
42 helloInputbuilder.setVersion(highestVersion);
43 helloInputbuilder.setXid(xid);
44 return helloInputbuilder;
51 * @return HelloInput with elements (version bitmap)
53 public static HelloInput createHelloInput(short helloVersion, long helloXid, List<Short> versionOrder) {
54 HelloInputBuilder helloInputbuilder = prepareHelloInputBuilder(helloVersion, helloXid);
55 if (versionOrder != null) {
56 List<Elements> elementList = new ArrayList<>();
58 ElementsBuilder elementsBuilder = new ElementsBuilder();
59 elementsBuilder.setType(HelloElementType.VERSIONBITMAP);
60 List<Boolean> booleanList = new ArrayList<>();
62 int versionOrderIndex = versionOrder.size() - 1;
64 while (versionOrderIndex >= 0) {
65 short version = versionOrder.get(versionOrderIndex);
66 if (version == booleanList.size()) {
67 booleanList.add(true);
70 booleanList.add(false);
74 elementsBuilder.setVersionBitmap(booleanList);
75 elementList.add(elementsBuilder.build());
76 helloInputbuilder.setElements(elementList);
78 return helloInputbuilder.build();
83 * @return version boolean list
85 public static List<Boolean> digVersions(List<Elements> elements) {
86 List<Boolean> result = null;
87 if (elements != null && !elements.isEmpty()) {
88 for (Elements elm : elements) {
89 if (HelloElementType.VERSIONBITMAP.equals(elm.getType())) {
90 result = elm.getVersionBitmap();