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 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 if (p.getLspa() != null) {
71 serializeObject(p.getLspa(), buffer);
73 if (p.getBandwidth() != null) {
74 serializeObject(p.getBandwidth(), buffer);
76 if (p.getMetrics() != null && !p.getMetrics().isEmpty()) {
77 for (final Metrics m : p.getMetrics()) {
78 serializeObject(m.getMetric(), buffer);
81 if (p.getIro() != null) {
82 serializeObject(p.getIro(), buffer);
88 protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
89 if (objects == null) {
90 throw new IllegalArgumentException("Passed list can't be null.");
92 if (objects.isEmpty()) {
93 throw new PCEPDeserializerException("Pcup message cannot be empty.");
96 final List<Updates> updateRequests = Lists.newArrayList();
98 while (!objects.isEmpty()) {
99 final Updates upd = getValidUpdates(objects, errors);
101 updateRequests.add(upd);
104 if (!objects.isEmpty()) {
105 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
107 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
110 protected Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
111 boolean isValid = true;
112 final UpdatesBuilder builder = new UpdatesBuilder();
113 if (objects.get(0) instanceof Srp) {
114 builder.setSrp((Srp) objects.get(0));
117 errors.add(createErrorMsg(PCEPErrors.SRP_MISSING, Optional.<Rp>absent()));
120 if (objects.get(0) instanceof Lsp) {
121 builder.setLsp((Lsp) objects.get(0));
124 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.<Rp>absent()));
127 if (!objects.isEmpty()) {
128 final PathBuilder pBuilder = new PathBuilder();
129 if (objects.get(0) instanceof Ero) {
130 pBuilder.setEro((Ero) objects.get(0));
133 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.<Rp>absent()));
136 parsePath(objects, pBuilder);
137 builder.setPath(pBuilder.build());
140 return builder.build();
145 private void parsePath(final List<Object> objects, final PathBuilder pBuilder) {
146 final List<Metrics> pathMetrics = Lists.newArrayList();
148 State state = State.Init;
149 while (!objects.isEmpty() && !state.equals(State.End)) {
150 obj = objects.get(0);
153 state = State.LspaIn;
154 if (obj instanceof Lspa) {
155 pBuilder.setLspa((Lspa) obj);
159 state = State.BandwidthIn;
160 if (obj instanceof Bandwidth) {
161 pBuilder.setBandwidth((Bandwidth) obj);
165 state = State.MetricIn;
166 if (obj instanceof Metric) {
167 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
168 state = State.BandwidthIn;
173 if (obj instanceof Iro) {
174 pBuilder.setIro((Iro) obj);
183 if (!state.equals(State.End)) {
187 if (!pathMetrics.isEmpty()) {
188 pBuilder.setMetrics(pathMetrics);
193 Init, LspaIn, BandwidthIn, MetricIn, IroIn, End