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.impl.message;
10 import com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import java.util.ArrayList;
15 import java.util.List;
16 import org.opendaylight.protocol.pcep.impl.Util;
17 import org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
18 import org.opendaylight.protocol.pcep.spi.MessageUtil;
19 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
20 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
21 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
22 import org.opendaylight.protocol.pcep.spi.VendorInformationObjectRegistry;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.Pcrep;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.PcrepBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.monitoring.metrics.MetricPce;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.monitoring.object.Monitoring;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.of.object.Of;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcc.id.req.object.PccIdReq;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pce.id.object.PceId;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.PcrepMessageBuilder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.Replies;
41 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.RepliesBuilder;
42 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.Result;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.FailureCase;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.FailureCaseBuilder;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.SuccessCase;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.SuccessCaseBuilder;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.failure._case.NoPath;
48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.success._case.SuccessBuilder;
49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.success._case.success.Paths;
50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.pcrep.message.replies.result.success._case.success.PathsBuilder;
51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
52 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.vendor.information.objects.VendorInformationObject;
55 * Parser for {@link Pcrep}
57 public class PCEPReplyMessageParser extends AbstractMessageParser {
59 public static final int TYPE = 4;
61 public PCEPReplyMessageParser(final ObjectRegistry registry, final VendorInformationObjectRegistry viRegistry) {
62 super(registry, viRegistry);
66 public void serializeMessage(final Message message, final ByteBuf out) {
67 Preconditions.checkArgument(message instanceof Pcrep, "Wrong instance of Message. Passed instance of %s. Need Pcrep.", message.getClass());
68 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcrep.message.PcrepMessage repMsg = ((Pcrep) message).getPcrepMessage();
69 if (repMsg.getReplies() == null || repMsg.getReplies().isEmpty()) {
70 throw new IllegalArgumentException("Replies cannot be null or empty.");
72 final ByteBuf buffer = Unpooled.buffer();
73 for (final Replies reply : repMsg.getReplies()) {
74 if (reply.getRp() == null) {
75 throw new IllegalArgumentException("Reply must contain RP object.");
77 serializeReply(reply, buffer);
79 MessageUtil.formatMessage(TYPE, buffer, out);
82 protected void serializeReply(final Replies reply, final ByteBuf buffer) {
83 serializeObject(reply.getRp(), buffer);
84 serializeMonitoring(reply, buffer);
85 serializeVendorInformationObjects(reply.getVendorInformationObject(), buffer);
86 if (reply.getResult() == null) {
89 if (reply.getResult() instanceof FailureCase) {
90 final FailureCase f = ((FailureCase) reply.getResult());
91 serializeFailure(f, buffer);
94 final SuccessCase s = (SuccessCase) reply.getResult();
95 serializeSuccess(s, buffer);
96 serializeMonitoringMetrics(reply, buffer);
99 private void serializeFailure(final FailureCase f, final ByteBuf buffer) {
103 serializeObject(f.getNoPath(), buffer);
104 serializeObject(f.getLspa(), buffer);
105 serializeObject(f.getBandwidth(), buffer);
106 if (f.getMetrics() != null) {
107 for (final Metrics m : f.getMetrics()) {
108 serializeObject(m.getMetric(), buffer);
111 serializeObject(f.getIro(), buffer);
114 private void serializeSuccess(final SuccessCase s, final ByteBuf buffer) {
115 if (s == null || s.getSuccess() == null) {
118 for (final Paths p : s.getSuccess().getPaths()) {
119 serializeObject(p.getEro(), buffer);
120 serializeObject(p.getLspa(), buffer);
121 serializeObject(p.getOf(), buffer);
122 serializeObject(p.getBandwidth(), buffer);
123 if (p.getMetrics() != null) {
124 for (final Metrics m : p.getMetrics()) {
125 serializeObject(m.getMetric(), buffer);
128 serializeObject(p.getIro(), buffer);
130 serializeVendorInformationObjects(s.getSuccess().getVendorInformationObject(), buffer);
133 private void serializeMonitoring(final Replies reply, final ByteBuf buffer) {
134 serializeObject(reply.getMonitoring(), buffer);
135 serializeObject(reply.getPccIdReq(), buffer);
138 private void serializeMonitoringMetrics(final Replies reply, final ByteBuf buffer) {
139 if (reply.getMetricPce() != null) {
140 for (final MetricPce metricPce : reply.getMetricPce()) {
141 serializeMetricPce(metricPce, buffer);
146 protected void serializeMetricPce(final MetricPce metricPce, final ByteBuf buffer) {
147 Preconditions.checkArgument(metricPce.getPceId() != null, "PCE-ID must be present.");
148 serializeObject(metricPce.getPceId(), buffer);
149 serializeObject(metricPce.getProcTime(), buffer);
150 serializeObject(metricPce.getOverload(), buffer);
154 protected Pcrep validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
155 if (objects == null) {
156 throw new IllegalArgumentException("Passed list can't be null.");
158 if (objects.isEmpty()) {
159 throw new PCEPDeserializerException("Pcrep message cannot be empty.");
161 final List<Replies> replies = new ArrayList<>();
162 while (!objects.isEmpty()) {
163 final Replies r = this.getValidReply(objects, errors);
168 if (!objects.isEmpty()) {
169 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
171 return new PcrepBuilder().setPcrepMessage(new PcrepMessageBuilder().setReplies(replies).build()).build();
174 protected Replies getValidReply(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
175 if (!(objects.get(0) instanceof Rp)) {
176 errors.add(createErrorMsg(PCEPErrors.RP_MISSING, Optional.<Rp>absent()));
179 final Rp rp = (Rp) objects.get(0);
181 final RepliesBuilder repliesBuilder = new RepliesBuilder();
182 if (!objects.isEmpty() && objects.get(0) instanceof Monitoring) {
183 repliesBuilder.setMonitoring((Monitoring) objects.get(0));
186 if (!objects.isEmpty() && objects.get(0) instanceof PccIdReq) {
187 repliesBuilder.setPccIdReq((PccIdReq) objects.get(0));
190 final List<VendorInformationObject> vendorInfo = addVendorInformationObjects(objects);
192 if (!objects.isEmpty()) {
193 if (objects.get(0) instanceof NoPath) {
194 res = handleNoPath((NoPath) objects.get(0), objects);
195 } else if (objects.get(0) instanceof Ero) {
196 res = handleEro((Ero) objects.get(0), objects);
199 final List<MetricPce> metricPceList = new ArrayList<>();
200 if (!objects.isEmpty() && objects.get(0) instanceof PceId) {
201 while (!objects.isEmpty()) {
202 metricPceList.add(Util.validateMonitoringMetrics(objects));
205 if (!vendorInfo.isEmpty()) {
206 repliesBuilder.setVendorInformationObject(vendorInfo);
208 if (!metricPceList.isEmpty()) {
209 repliesBuilder.setMetricPce(metricPceList);
211 return repliesBuilder.setRp(rp).setResult(res).build();
214 private Result handleNoPath(final NoPath noPath, final List<Object> objects) {
216 final FailureCaseBuilder builder = new FailureCaseBuilder();
217 builder.setNoPath(noPath);
218 while (!objects.isEmpty() && !(objects.get(0) instanceof PceId)) {
219 this.parseAttributes(builder, objects);
221 return builder.build();
224 private Result handleEro(final Ero ero, final List<Object> objects) {
226 final SuccessBuilder builder = new SuccessBuilder();
227 final List<Paths> paths = new ArrayList<>();
228 final PathsBuilder pBuilder = new PathsBuilder();
229 pBuilder.setEro(ero);
230 while (!objects.isEmpty() && !(objects.get(0) instanceof PceId)) {
231 final List<VendorInformationObject> vendorInfoObjects = addVendorInformationObjects(objects);
232 if (!vendorInfoObjects.isEmpty()) {
233 builder.setVendorInformationObject(vendorInfoObjects);
235 this.parsePath(pBuilder, objects);
236 paths.add(pBuilder.build());
238 builder.setPaths(paths);
239 return new SuccessCaseBuilder().setSuccess(builder.build()).build();
242 protected void parseAttributes(final FailureCaseBuilder builder, final List<Object> objects) {
243 final List<Metrics> pathMetrics = new ArrayList<>();
246 State state = State.INIT;
247 while (!objects.isEmpty() && !state.equals(State.END)) {
248 obj = objects.get(0);
252 state = State.LSPA_IN;
253 if (obj instanceof Lspa) {
254 builder.setLspa((Lspa) obj);
258 state = State.BANDWIDTH_IN;
259 if (obj instanceof Bandwidth) {
260 builder.setBandwidth((Bandwidth) obj);
264 state = State.METRIC_IN;
265 if (obj instanceof Metric) {
266 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
267 state = State.METRIC_IN;
271 state = State.IRO_IN;
272 if (obj instanceof Iro) {
273 builder.setIro((Iro) obj);
284 if (!state.equals(State.END)) {
288 if (!pathMetrics.isEmpty()) {
289 builder.setMetrics(pathMetrics);
293 protected void parsePath(final PathsBuilder builder, final List<Object> objects) {
294 final List<Metrics> pathMetrics = new ArrayList<>();
297 State state = State.INIT;
298 while (!objects.isEmpty() && !state.equals(State.END)) {
299 obj = objects.get(0);
303 state = State.LSPA_IN;
304 if (obj instanceof Lspa) {
305 builder.setLspa((Lspa) obj);
310 if (obj instanceof Of) {
311 builder.setOf((Of) obj);
315 state = State.BANDWIDTH_IN;
316 if (obj instanceof Bandwidth) {
317 builder.setBandwidth((Bandwidth) obj);
321 state = State.METRIC_IN;
322 if (obj instanceof Metric) {
323 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
324 state = State.BANDWIDTH_IN;
328 state = State.IRO_IN;
329 if (obj instanceof Iro) {
330 builder.setIro((Iro) obj);
341 if (!state.equals(State.END)) {
345 if (!pathMetrics.isEmpty()) {
346 builder.setMetrics(pathMetrics);
351 INIT, LSPA_IN, OF_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, END