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}
44 public final class Stateful02PCUpdateRequestMessageParser extends AbstractMessageParser {
46 public static final int TYPE = 11;
48 public Stateful02PCUpdateRequestMessageParser(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 serializeObject(update.getLsp(), buffer);
60 final Path p = update.getPath();
62 serializeObject(p.getEro(), buffer);
63 serializeObject(p.getLspa(), buffer);
64 serializeObject(p.getBandwidth(), buffer);
65 if (p.getMetrics() != null && !p.getMetrics().isEmpty()) {
66 for (final Metrics m : p.getMetrics()) {
67 serializeObject(m.getMetric(), buffer);
70 serializeObject(p.getIro(), buffer);
73 MessageUtil.formatMessage(TYPE, buffer, out);
77 protected Message validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
78 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
79 if (objects.isEmpty()) {
80 throw new PCEPDeserializerException("Pcup message cannot be empty.");
83 final List<Updates> updateRequests = Lists.newArrayList();
85 while (!objects.isEmpty()) {
86 final Updates update = getValidUpdates(objects, errors);
88 updateRequests.add(update);
91 if (!objects.isEmpty()) {
92 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
94 return new PcupdBuilder().setPcupdMessage(new PcupdMessageBuilder().setUpdates(updateRequests).build()).build();
97 private Updates getValidUpdates(final List<Object> objects, final List<Message> errors) {
98 final UpdatesBuilder builder = new UpdatesBuilder();
99 if (objects.get(0) instanceof Lsp) {
100 builder.setLsp((Lsp) objects.get(0));
103 errors.add(createErrorMsg(PCEPErrors.LSP_MISSING, Optional.<Rp>absent()));
106 if (!objects.isEmpty()) {
107 final PathBuilder pBuilder = new PathBuilder();
108 if (objects.get(0) instanceof Ero) {
109 pBuilder.setEro((Ero) objects.get(0));
112 errors.add(createErrorMsg(PCEPErrors.ERO_MISSING, Optional.<Rp>absent()));
115 parsePath(objects, pBuilder);
116 builder.setPath(pBuilder.build());
118 return builder.build();
121 private void parsePath(final List<Object> objects, final PathBuilder pBuilder) {
122 final List<Metrics> pathMetrics = Lists.newArrayList();
124 State state = State.Init;
125 while (!objects.isEmpty() && !state.equals(State.End)) {
126 obj = objects.get(0);
129 state = State.LspaIn;
130 if (obj instanceof Lspa) {
131 pBuilder.setLspa((Lspa) obj);
135 state = State.BandwidthIn;
136 if (obj instanceof Bandwidth) {
137 pBuilder.setBandwidth((Bandwidth) obj);
141 state = State.MetricIn;
142 if (obj instanceof Metric) {
143 pathMetrics.add(new MetricsBuilder().setMetric((Metric) obj).build());
144 state = State.BandwidthIn;
149 if (obj instanceof Iro) {
150 pBuilder.setIro((Iro) obj);
159 if (!state.equals(State.End)) {
163 if (!pathMetrics.isEmpty()) {
164 pBuilder.setMetrics(pathMetrics);
169 Init, LspaIn, BandwidthIn, MetricIn, IroIn, End