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 org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
16 import org.opendaylight.protocol.pcep.spi.MessageUtil;
17 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
18 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
19 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Pcupd;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcupdBuilder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.PcupdMessageBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.Updates;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.UpdatesBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.updates.Path;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcupd.message.pcupd.message.updates.PathBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.Srp;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
40 * Parser for {@link Pcupd}
42 public class Stateful07PCUpdateRequestMessageParser extends AbstractMessageParser {
44 public static final int TYPE = 11;
46 public Stateful07PCUpdateRequestMessageParser(final ObjectRegistry registry) {
51 public void serializeMessage(final Message message, final ByteBuf out) {
52 Preconditions.checkArgument(message instanceof Pcupd, "Wrong instance of Message. Passed instance of %s. Need Pcupd.", message.getClass());
53 final Pcupd msg = (Pcupd) message;
54 final List<Updates> updates = msg.getPcupdMessage().getUpdates();
55 ByteBuf buffer = Unpooled.buffer();
56 for (final Updates update : updates) {
57 serializeUpdate(update, buffer);
59 MessageUtil.formatMessage(TYPE, buffer, out);
62 protected void serializeUpdate(final Updates update, final ByteBuf buffer) {
63 serializeObject(update.getSrp(), buffer);
64 serializeObject(update.getLsp(), buffer);
65 final Path p = update.getPath();
67 serializeObject(p.getEro(), buffer);
68 if (p.getLspa() != null) {
69 serializeObject(p.getLspa(), buffer);
71 if (p.getBandwidth() != null) {
72 serializeObject(p.getBandwidth(), buffer);
74 if (p.getMetrics() != null && !p.getMetrics().isEmpty()) {
75 for (final Metrics m : p.getMetrics()) {
76 serializeObject(m.getMetric(), buffer);
79 if (p.getIro() != null) {
80 serializeObject(p.getIro(), buffer);
86 protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
87 if (objects == null) {
88 throw new IllegalArgumentException("Passed list can't be null.");
90 if (objects.isEmpty()) {
91 throw new PCEPDeserializerException("Pcup message cannot be empty.");
94 final List<Updates> updateRequests = Lists.newArrayList();
96 while (!objects.isEmpty()) {
97 final Updates upd = getValidUpdates(objects, errors);
99 updateRequests.add(upd);
102 if (!objects.isEmpty()) {
103 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
105 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
108 protected Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
109 boolean isValid = true;
110 final UpdatesBuilder builder = new UpdatesBuilder();
111 if (objects.get(0) instanceof Srp) {
112 builder.setSrp((Srp) objects.get(0));
115 errors.add(createErrorMsg(PCEPErrors.SRP_MISSING));
118 if (objects.get(0) instanceof Lsp) {
119 builder.setLsp((Lsp) objects.get(0));
122 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING));
125 if (!objects.isEmpty()) {
126 final PathBuilder pBuilder = new PathBuilder();
127 if (objects.get(0) instanceof Ero) {
128 pBuilder.setEro((Ero) objects.get(0));
131 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING));
134 parsePath(objects, pBuilder);
135 builder.setPath(pBuilder.build());
138 return builder.build();
143 private void parsePath(final List<Object> objects, final PathBuilder pBuilder) {
144 final List<Metrics> pathMetrics = Lists.newArrayList();
146 State state = State.Init;
147 while (!objects.isEmpty() && !state.equals(State.End)) {
148 obj = objects.get(0);
151 state = State.LspaIn;
152 if (obj instanceof Lspa) {
153 pBuilder.setLspa((Lspa) obj);
157 state = State.BandwidthIn;
158 if (obj instanceof Bandwidth) {
159 pBuilder.setBandwidth((Bandwidth) obj);
163 state = State.MetricIn;
164 if (obj instanceof Metric) {
165 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
166 state = State.BandwidthIn;
171 if (obj instanceof Iro) {
172 pBuilder.setIro((Iro) obj);
181 if (!state.equals(State.End)) {
185 if (!pathMetrics.isEmpty()) {
186 pBuilder.setMetrics(pathMetrics);
191 Init, LspaIn, BandwidthIn, MetricIn, IroIn, End