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.protocol.pcep.spi.PSTUtil;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.Pcrpt;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.PcrptBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.lsp.object.Lsp;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.PcrptMessageBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.pcrpt.message.Reports;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.pcrpt.message.ReportsBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.pcrpt.message.reports.Path;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.pcrpt.message.pcrpt.message.reports.PathBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.Srp;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev131222.srp.object.srp.Tlvs;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reported.route.object.Rro;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
45 * Parser for {@link Pcrpt}
47 public class Stateful07PCReportMessageParser extends AbstractMessageParser {
49 public static final int TYPE = 10;
51 public Stateful07PCReportMessageParser(final ObjectRegistry registry) {
56 public void serializeMessage(final Message message, final ByteBuf out) {
57 Preconditions.checkArgument(message instanceof Pcrpt, "Wrong instance of Message. Passed instance of %s. Need Pcrpt.", message.getClass());
58 final Pcrpt msg = (Pcrpt) message;
59 final List<Reports> reports = msg.getPcrptMessage().getReports();
60 final ByteBuf buffer = Unpooled.buffer();
61 for (final Reports report : reports) {
62 serializeReport(report, buffer);
64 MessageUtil.formatMessage(TYPE, buffer, out);
67 private void serializeReport(final Reports report, final ByteBuf buffer) {
68 if (report.getSrp() != null) {
69 serializeObject(report.getSrp(), buffer);
71 serializeObject(report.getLsp(), buffer);
72 final Path p = report.getPath();
74 serializeObject(p.getEro(), buffer);
75 serializeObject(p.getLspa(), buffer);
76 serializeObject(p.getBandwidth(), buffer);
77 serializeObject(p.getReoptimizationBandwidth(), buffer);
78 if (p.getMetrics() != null) {
79 for (final Metrics m : p.getMetrics()) {
80 serializeObject(m.getMetric(), buffer);
83 serializeObject(p.getIro(), buffer);
84 serializeObject(p.getRro(), buffer);
89 public Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
90 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
91 if (objects.isEmpty()) {
92 throw new PCEPDeserializerException("Pcrpt message cannot be empty.");
95 final List<Reports> reports = Lists.newArrayList();
97 while (!objects.isEmpty()) {
98 final Reports report = getValidReports(objects, errors);
103 return new PcrptBuilder().setPcrptMessage(new PcrptMessageBuilder().setReports(reports).build()).build();
106 protected Reports getValidReports(final List<Object> objects, final List<Message> errors) {
107 final ReportsBuilder builder = new ReportsBuilder();
109 boolean lspViaSR = false;
110 Object object = objects.remove(0);
111 if (object instanceof Srp) {
112 final Srp srp = (Srp) object;
113 final Tlvs tlvs = srp.getTlvs();
115 lspViaSR = PSTUtil.isDefaultPST(tlvs.getPathSetupType());
118 if (objects.isEmpty()) {
121 object = objects.remove(0);
125 if (validateLsp(object, lspViaSR, errors, builder)) {
126 if (!objects.isEmpty()) {
127 if (!validatePath(objects, errors, builder)) {
132 return builder.build();
137 private boolean validateLsp(final Object object, final boolean lspViaSR, final List<Message> errors, 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.rev131222.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.absent());
143 errors.add(errorMsg);
149 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.absent()));
155 private boolean validatePath(final List<Object> objects, final List<Message> errors, final ReportsBuilder builder) {
156 final PathBuilder pBuilder = new PathBuilder();
157 Object object = objects.remove(0);
158 if (object instanceof Ero) {
159 pBuilder.setEro((Ero) object);
161 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.absent()));
164 parsePath(objects, pBuilder);
165 builder.setPath(pBuilder.build());
169 private void parsePath(final List<Object> objects, final PathBuilder builder) {
170 final List<Metrics> pathMetrics = Lists.newArrayList();
172 State state = State.INIT;
173 while (!objects.isEmpty() && !state.equals(State.END)) {
174 obj = objects.get(0);
175 state = insertObject(state, obj, builder, pathMetrics);
176 if (!state.equals(State.END)) {
180 if (!pathMetrics.isEmpty()) {
181 builder.setMetrics(pathMetrics);
185 private State insertObject(final State state, final Object obj, final PathBuilder builder, final List<Metrics> pathMetrics) {
188 if (obj instanceof Lspa) {
189 builder.setLspa((Lspa) obj);
190 return State.LSPA_IN;
193 if (obj instanceof Bandwidth) {
194 builder.setBandwidth((Bandwidth) obj);
195 return State.LSPA_IN;
197 if (obj instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reoptimization.bandwidth.object.ReoptimizationBandwidth) {
198 builder.setReoptimizationBandwidth((org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.reoptimization.bandwidth.object.ReoptimizationBandwidth) obj);
199 return State.LSPA_IN;
202 if (obj instanceof Metric) {
203 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
204 return State.BANDWIDTH_IN;
207 if (obj instanceof Iro) {
208 builder.setIro((Iro) obj);
212 if (obj instanceof Rro) {
213 builder.setRro((Rro) obj);
225 INIT, LSPA_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, RRO_IN, END