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.protocol.pcep.spi.PSTUtil;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.Pcrpt;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.PcrptBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.Lsp;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcrpt.message.PcrptMessageBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcrpt.message.pcrpt.message.Reports;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcrpt.message.pcrpt.message.ReportsBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcrpt.message.pcrpt.message.reports.Path;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.pcrpt.message.pcrpt.message.reports.PathBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.srp.object.Srp;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.srp.object.srp.Tlvs;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Message;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.bandwidth.object.Bandwidth;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.explicit.route.object.Ero;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.include.route.object.Iro;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lsp.attributes.Metrics;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lsp.attributes.MetricsBuilder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.lspa.object.Lspa;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.metric.object.Metric;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reported.route.object.Rro;
44 * Parser for {@link Pcrpt}
46 public class Stateful07PCReportMessageParser extends AbstractMessageParser {
48 public static final int TYPE = 10;
50 public Stateful07PCReportMessageParser(final ObjectRegistry registry) {
55 public void serializeMessage(final Message message, final ByteBuf out) {
56 Preconditions.checkArgument(message instanceof Pcrpt, "Wrong instance of Message. Passed instance of %s. Need Pcrpt.", message.getClass());
57 final Pcrpt msg = (Pcrpt) message;
58 final List<Reports> reports = msg.getPcrptMessage().getReports();
59 final ByteBuf buffer = Unpooled.buffer();
60 for (final Reports report : reports) {
61 serializeReport(report, buffer);
63 MessageUtil.formatMessage(TYPE, buffer, out);
66 private void serializeReport(final Reports report, final ByteBuf buffer) {
67 if (report.getSrp() != null) {
68 serializeObject(report.getSrp(), buffer);
70 serializeObject(report.getLsp(), buffer);
71 final Path p = report.getPath();
73 serializeObject(p.getEro(), buffer);
74 serializeObject(p.getLspa(), buffer);
75 serializeObject(p.getBandwidth(), buffer);
76 serializeObject(p.getReoptimizationBandwidth(), buffer);
77 if (p.getMetrics() != null) {
78 for (final Metrics m : p.getMetrics()) {
79 serializeObject(m.getMetric(), buffer);
82 serializeObject(p.getIro(), buffer);
83 serializeObject(p.getRro(), buffer);
88 public Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
89 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
90 if (objects.isEmpty()) {
91 throw new PCEPDeserializerException("Pcrpt message cannot be empty.");
94 final List<Reports> reports = Lists.newArrayList();
96 while (!objects.isEmpty()) {
97 final Reports report = getValidReports(objects, errors);
102 return new PcrptBuilder().setPcrptMessage(new PcrptMessageBuilder().setReports(reports).build()).build();
105 protected Reports getValidReports(final List<Object> objects, final List<Message> errors) {
106 final ReportsBuilder builder = new ReportsBuilder();
108 boolean lspViaSR = false;
109 Object object = objects.remove(0);
110 if (object instanceof Srp) {
111 final Srp srp = (Srp) object;
112 final Tlvs tlvs = srp.getTlvs();
114 lspViaSR = PSTUtil.isDefaultPST(tlvs.getPathSetupType());
117 if (objects.isEmpty()) {
120 object = objects.remove(0);
124 if (validateLsp(object, lspViaSR, errors, builder)) {
125 if (!objects.isEmpty()) {
126 if (!validatePath(objects, errors, builder)) {
131 return builder.build();
136 private static boolean validateLsp(final Object object, final boolean lspViaSR, final List<Message> errors,
137 final ReportsBuilder builder) {
138 if (object instanceof Lsp) {
139 final Lsp lsp = (Lsp) object;
140 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.object.lsp.Tlvs tlvs = lsp.getTlvs();
141 if (!lspViaSR && lsp.getPlspId().getValue() != 0 && (tlvs == null || tlvs.getLspIdentifiers() == null)) {
142 final Message errorMsg = createErrorMsg(PCEPErrors.LSP_IDENTIFIERS_TLV_MISSING, Optional.empty());
143 errors.add(errorMsg);
151 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.empty()));
155 private static boolean validatePath(final List<Object> objects, final List<Message> errors,
156 final ReportsBuilder builder) {
157 final PathBuilder pBuilder = new PathBuilder();
158 Object object = objects.remove(0);
159 if (object instanceof Ero) {
160 pBuilder.setEro((Ero) object);
162 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.empty()));
165 parsePath(objects, pBuilder);
166 builder.setPath(pBuilder.build());
170 private static void parsePath(final List<Object> objects, final PathBuilder builder) {
171 final List<Metrics> pathMetrics = Lists.newArrayList();
173 State state = State.INIT;
174 while (!objects.isEmpty() && !state.equals(State.END)) {
175 obj = objects.get(0);
176 state = insertObject(state, obj, builder, pathMetrics);
177 if (!state.equals(State.END)) {
181 if (!pathMetrics.isEmpty()) {
182 builder.setMetrics(pathMetrics);
186 private static State insertObject(final State state, final Object obj, final PathBuilder builder,
187 final List<Metrics> pathMetrics) {
190 if (obj instanceof Lspa) {
191 builder.setLspa((Lspa) obj);
192 return State.LSPA_IN;
195 if (obj instanceof Bandwidth) {
196 builder.setBandwidth((Bandwidth) obj);
197 return State.LSPA_IN;
199 if (obj instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reoptimization.bandwidth.object.ReoptimizationBandwidth) {
200 builder.setReoptimizationBandwidth((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.reoptimization.bandwidth.object.ReoptimizationBandwidth) obj);
201 return State.LSPA_IN;
204 if (obj instanceof Metric) {
205 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
206 return State.BANDWIDTH_IN;
209 if (obj instanceof Iro) {
210 builder.setIro((Iro) obj);
214 if (obj instanceof Rro) {
215 builder.setRro((Rro) obj);
227 INIT, LSPA_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, RRO_IN, END