2 * Copyright (c) 2014 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.stateful02;
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.crabbe.stateful._02.rev140110.Pcupd;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.PcupdBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.lsp.object.Lsp;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.pcupd.message.PcupdMessageBuilder;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.pcupd.message.pcupd.message.Updates;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.pcupd.message.pcupd.message.UpdatesBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.pcupd.message.pcupd.message.updates.Path;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.crabbe.stateful._02.rev140110.pcupd.message.pcupd.message.updates.PathBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.bandwidth.object.Bandwidth;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.include.route.object.Iro;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.Metrics;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lsp.attributes.MetricsBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.lspa.object.Lspa;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.metric.object.Metric;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
41 * Parser for {@link Pcupd}
43 public final class Stateful02PCUpdateRequestMessageParser extends AbstractMessageParser {
45 public static final int TYPE = 11;
47 public Stateful02PCUpdateRequestMessageParser(final ObjectRegistry registry) {
52 public void serializeMessage(final Message message, final ByteBuf out) {
53 Preconditions.checkArgument(message instanceof Pcupd, "Wrong instance of Message. Passed instance of %s. Need Pcupd.", message.getClass());
54 final Pcupd msg = (Pcupd) message;
55 final List<Updates> updates = msg.getPcupdMessage().getUpdates();
56 ByteBuf buffer = Unpooled.buffer();
57 for (final Updates update : updates) {
58 serializeObject(update.getLsp(), buffer);
59 final Path p = update.getPath();
61 serializeObject(p.getEro(), buffer);
62 if (p.getLspa() != null) {
63 serializeObject(p.getLspa(), buffer);
65 if (p.getBandwidth() != null) {
66 serializeObject(p.getBandwidth(), buffer);
68 if (p.getMetrics() != null && !p.getMetrics().isEmpty()) {
69 for (final Metrics m : p.getMetrics()) {
70 serializeObject(m.getMetric(), buffer);
73 if (p.getIro() != null) {
74 serializeObject(p.getIro(), buffer);
78 MessageUtil.formatMessage(TYPE, buffer, out);
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 update = getValidUpdates(objects, errors);
95 updateRequests.add(update);
98 if (!objects.isEmpty()) {
99 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
101 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
104 private Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
105 final UpdatesBuilder builder = new UpdatesBuilder();
106 if (objects.get(0) instanceof Lsp) {
107 builder.setLsp((Lsp) objects.get(0));
110 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.<Rp>absent()));
113 if (!objects.isEmpty()) {
114 final PathBuilder pBuilder = new PathBuilder();
115 if (objects.get(0) instanceof Ero) {
116 pBuilder.setEro((Ero) objects.get(0));
119 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.<Rp>absent()));
122 parsePath(objects, pBuilder);
123 builder.setPath(pBuilder.build());
125 return builder.build();
128 private void parsePath(final List<Object> objects, final PathBuilder pBuilder) {
129 final List<Metrics> pathMetrics = Lists.newArrayList();
131 State state = State.Init;
132 while (!objects.isEmpty() && !state.equals(State.End)) {
133 obj = objects.get(0);
136 state = State.LspaIn;
137 if (obj instanceof Lspa) {
138 pBuilder.setLspa((Lspa) obj);
142 state = State.BandwidthIn;
143 if (obj instanceof Bandwidth) {
144 pBuilder.setBandwidth((Bandwidth) obj);
148 state = State.MetricIn;
149 if (obj instanceof Metric) {
150 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
151 state = State.BandwidthIn;
156 if (obj instanceof Iro) {
157 pBuilder.setIro((Iro) obj);
166 if (!state.equals(State.End)) {
170 if (!pathMetrics.isEmpty()) {
171 pBuilder.setMetrics(pathMetrics);
176 Init, LspaIn, BandwidthIn, MetricIn, IroIn, End