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.protocol.pcep.ietf.stateful07;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.Lists;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import java.util.List;
15 import java.util.Optional;
16 import org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
17 import org.opendaylight.protocol.pcep.spi.MessageUtil;
18 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
19 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
20 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.Pcupd;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.PcupdBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.Lsp;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcupd.message.PcupdMessageBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcupd.message.pcupd.message.Updates;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcupd.message.pcupd.message.UpdatesBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcupd.message.pcupd.message.updates.Path;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcupd.message.pcupd.message.updates.PathBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.srp.object.Srp;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Message;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.bandwidth.object.Bandwidth;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.explicit.route.object.Ero;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.include.route.object.Iro;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lsp.attributes.Metrics;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lsp.attributes.MetricsBuilder;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lspa.object.Lspa;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.metric.object.Metric;
41 * Parser for {@link Pcupd}
43 public class Stateful07PCUpdateRequestMessageParser extends AbstractMessageParser {
45 public static final int TYPE = 11;
47 public Stateful07PCUpdateRequestMessageParser(final ObjectRegistry registry) {
52 public void serializeMessage(final Message message, final ByteBuf out) {
53 Preconditions.checkArgument(message instanceof Pcupd, "Wrong instance of Message. Passed instance of %s. Need Pcupd.", message.getClass());
54 final Pcupd msg = (Pcupd) message;
55 final List<Updates> updates = msg.getPcupdMessage().getUpdates();
56 final ByteBuf buffer = Unpooled.buffer();
57 for (final Updates update : updates) {
58 serializeUpdate(update, buffer);
60 MessageUtil.formatMessage(TYPE, buffer, out);
63 protected void serializeUpdate(final Updates update, final ByteBuf buffer) {
64 serializeObject(update.getSrp(), buffer);
65 serializeObject(update.getLsp(), buffer);
66 final Path p = update.getPath();
68 serializeObject(p.getEro(), buffer);
69 serializeObject(p.getLspa(), buffer);
70 serializeObject(p.getBandwidth(), buffer);
71 serializeObject(p.getReoptimizationBandwidth(), buffer);
72 if (p.getMetrics() != null) {
73 for (final Metrics m : p.getMetrics()) {
74 serializeObject(m.getMetric(), buffer);
77 serializeObject(p.getIro(), buffer);
82 protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
83 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
84 if (objects.isEmpty()) {
85 throw new PCEPDeserializerException("Pcup message cannot be empty.");
88 final List<Updates> updateRequests = Lists.newArrayList();
90 while (!objects.isEmpty()) {
91 final Updates upd = getValidUpdates(objects, errors);
93 updateRequests.add(upd);
96 if (!objects.isEmpty()) {
97 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
99 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
102 protected Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
103 final UpdatesBuilder builder = new UpdatesBuilder();
105 Object object = objects.remove(0);
106 if (object instanceof Srp) {
107 builder.setSrp((Srp) object);
108 if (objects.isEmpty()) {
111 object = objects.remove(0);
114 errors.add(createErrorMsg(PCEPErrors.SRP_MISSING, Optional.empty()));
117 if (validateLsp(object, errors, builder)) {
118 if (!objects.isEmpty()) {
119 if (!validatePath(objects, errors, builder)) {
124 return builder.build();
129 private static boolean validateLsp(final Object object, final List<Message> errors, final UpdatesBuilder builder) {
130 if (object instanceof Lsp) {
131 builder.setLsp((Lsp) object);
133 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.empty()));
139 private static boolean validatePath(final List<Object> objects, final List<Message> errors,
140 final UpdatesBuilder builder) {
141 final PathBuilder pBuilder = new PathBuilder();
142 Object object = objects.remove(0);
143 if (object instanceof Ero) {
144 pBuilder.setEro((Ero) object);
146 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.empty()));
149 parsePath(objects, pBuilder);
150 builder.setPath(pBuilder.build());
154 private static void parsePath(final List<Object> objects, final PathBuilder pBuilder) {
155 final List<Metrics> pathMetrics = Lists.newArrayList();
157 State state = State.INIT;
158 while (!objects.isEmpty() && !state.equals(State.END)) {
159 obj = objects.get(0);
160 state = insertObject(state,obj, pBuilder, pathMetrics);
161 if (!state.equals(State.END)) {
165 if (!pathMetrics.isEmpty()) {
166 pBuilder.setMetrics(pathMetrics);
170 private static State insertObject(final State state, final Object obj, final PathBuilder pBuilder,
171 final List<Metrics> pathMetrics) {
174 if (obj instanceof Lspa) {
175 pBuilder.setLspa((Lspa) obj);
176 return State.LSPA_IN;
179 if (obj instanceof Bandwidth) {
180 pBuilder.setBandwidth((Bandwidth) obj);
181 return State.LSPA_IN;
183 if (obj instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reoptimization.bandwidth.object.ReoptimizationBandwidth) {
184 pBuilder.setReoptimizationBandwidth((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reoptimization.bandwidth.object.ReoptimizationBandwidth) obj);
185 return State.LSPA_IN;
188 if (obj instanceof Metric) {
189 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
190 return State.BANDWIDTH_IN;
193 if (obj instanceof Iro) {
194 pBuilder.setIro((Iro) obj);
206 INIT, LSPA_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, END