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.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.Lists;
13 import io.netty.buffer.ByteBuf;
14 import io.netty.buffer.Unpooled;
15 import java.util.List;
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.rev131222.Pcupd;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcupdBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.PcupdMessageBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.Updates;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.UpdatesBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.updates.Path;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.updates.PathBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.Srp;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
42 * Parser for {@link Pcupd}
44 public class Stateful07PCUpdateRequestMessageParser extends AbstractMessageParser {
46 public static final int TYPE = 11;
48 public Stateful07PCUpdateRequestMessageParser(final ObjectRegistry registry) {
53 public void serializeMessage(final Message message, final ByteBuf out) {
54 Preconditions.checkArgument(message instanceof Pcupd, "Wrong instance of Message. Passed instance of %s. Need Pcupd.", message.getClass());
55 final Pcupd msg = (Pcupd) message;
56 final List<Updates> updates = msg.getPcupdMessage().getUpdates();
57 final ByteBuf buffer = Unpooled.buffer();
58 for (final Updates update : updates) {
59 serializeUpdate(update, buffer);
61 MessageUtil.formatMessage(TYPE, buffer, out);
64 protected void serializeUpdate(final Updates update, final ByteBuf buffer) {
65 serializeObject(update.getSrp(), buffer);
66 serializeObject(update.getLsp(), buffer);
67 final Path p = update.getPath();
69 serializeObject(p.getEro(), buffer);
70 serializeObject(p.getLspa(), buffer);
71 serializeObject(p.getBandwidth(), buffer);
72 serializeObject(p.getReoptimizationBandwidth(), buffer);
73 if (p.getMetrics() != null) {
74 for (final Metrics m : p.getMetrics()) {
75 serializeObject(m.getMetric(), buffer);
78 serializeObject(p.getIro(), buffer);
83 protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
84 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
85 if (objects.isEmpty()) {
86 throw new PCEPDeserializerException("Pcup message cannot be empty.");
89 final List<Updates> updateRequests = Lists.newArrayList();
91 while (!objects.isEmpty()) {
92 final Updates upd = getValidUpdates(objects, errors);
94 updateRequests.add(upd);
97 if (!objects.isEmpty()) {
98 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
100 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
103 protected Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
104 final UpdatesBuilder builder = new UpdatesBuilder();
106 Object object = objects.remove(0);
107 if (object instanceof Srp) {
108 builder.setSrp((Srp) object);
109 if (objects.isEmpty()) {
112 object = objects.remove(0);
115 errors.add(createErrorMsg(PCEPErrors.SRP_MISSING, Optional.absent()));
118 if (validateLsp(object, errors, builder)) {
119 if (!objects.isEmpty()) {
120 if (!validatePath(objects, errors, builder)) {
125 return builder.build();
130 private boolean validateLsp(final Object object, final List<Message> errors, final UpdatesBuilder builder) {
131 if (object instanceof Lsp) {
132 builder.setLsp((Lsp) object);
134 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.absent()));
140 private boolean validatePath(final List<Object> objects, final List<Message> errors, 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.absent()));
149 parsePath(objects, pBuilder);
150 builder.setPath(pBuilder.build());
154 private 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 State insertObject(final State state, final Object obj, final PathBuilder pBuilder, final List<Metrics> pathMetrics) {
173 if (obj instanceof Lspa) {
174 pBuilder.setLspa((Lspa) obj);
175 return State.LSPA_IN;
178 if (obj instanceof Bandwidth) {
179 pBuilder.setBandwidth((Bandwidth) obj);
180 return State.LSPA_IN;
182 if (obj instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reoptimization.bandwidth.object.ReoptimizationBandwidth) {
183 pBuilder.setReoptimizationBandwidth((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reoptimization.bandwidth.object.ReoptimizationBandwidth) obj);
184 return State.LSPA_IN;
187 if (obj instanceof Metric) {
188 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
189 return State.BANDWIDTH_IN;
192 if (obj instanceof Iro) {
193 pBuilder.setIro((Iro) obj);
205 INIT, LSPA_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, END