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 final 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 serializeObject(p.getLspa(), buffer);
71 serializeObject(p.getBandwidth(), buffer);
72 if (p.getMetrics() != null) {
73 for (final Metrics m : p.getMetrics()) {
74 serializeObject(m.getMetric(), buffer);
77 serializeObject(p.getIro(), buffer);
82 protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
83 if (objects == null) {
84 throw new IllegalArgumentException("Passed list can't be null.");
86 if (objects.isEmpty()) {
87 throw new PCEPDeserializerException("Pcup message cannot be empty.");
90 final List<Updates> updateRequests = Lists.newArrayList();
92 while (!objects.isEmpty()) {
93 final Updates upd = getValidUpdates(objects, errors);
95 updateRequests.add(upd);
98 if (!objects.isEmpty()) {
99 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
101 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
104 protected Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
105 boolean isValid = true;
106 final UpdatesBuilder builder = new UpdatesBuilder();
107 if (objects.get(0) instanceof Srp) {
108 builder.setSrp((Srp) objects.get(0));
111 errors.add(createErrorMsg(PCEPErrors.SRP_MISSING, Optional.<Rp>absent()));
114 if (objects.get(0) instanceof Lsp) {
115 builder.setLsp((Lsp) objects.get(0));
118 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.<Rp>absent()));
121 if (!objects.isEmpty()) {
122 final PathBuilder pBuilder = new PathBuilder();
123 if (objects.get(0) instanceof Ero) {
124 pBuilder.setEro((Ero) objects.get(0));
127 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.<Rp>absent()));
130 parsePath(objects, pBuilder);
131 builder.setPath(pBuilder.build());
134 return builder.build();
139 private void parsePath(final List<Object> objects, final PathBuilder pBuilder) {
140 final List<Metrics> pathMetrics = Lists.newArrayList();
142 State state = State.INIT;
143 while (!objects.isEmpty() && !state.equals(State.END)) {
144 obj = objects.get(0);
145 state = insertObject(state,obj, pBuilder, pathMetrics);
146 if (!state.equals(State.END)) {
150 if (!pathMetrics.isEmpty()) {
151 pBuilder.setMetrics(pathMetrics);
155 private State insertObject(final State state, final Object obj, final PathBuilder pBuilder, final List<Metrics> pathMetrics) {
158 if (obj instanceof Lspa) {
159 pBuilder.setLspa((Lspa) obj);
160 return State.LSPA_IN;
163 if (obj instanceof Bandwidth) {
164 pBuilder.setBandwidth((Bandwidth) obj);
165 return State.BANDWIDTH_IN;
168 if (obj instanceof Metric) {
169 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
170 return State.BANDWIDTH_IN;
173 if (obj instanceof Iro) {
174 pBuilder.setIro((Iro) obj);
186 INIT, LSPA_IN, BANDWIDTH_IN, METRIC_IN, IRO_IN, END