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 io.netty.buffer.ByteBuf;
12 import java.util.Arrays;
13 import java.util.List;
15 import org.opendaylight.protocol.pcep.PCEPDeserializerException;
16 import org.opendaylight.protocol.pcep.PCEPDocumentedException;
17 import org.opendaylight.protocol.pcep.PCEPErrorMapping;
18 import org.opendaylight.protocol.pcep.PCEPErrors;
19 import org.opendaylight.protocol.pcep.UnknownObject;
20 import org.opendaylight.protocol.pcep.impl.AbstractMessageParser;
21 import org.opendaylight.protocol.pcep.spi.ObjectHandlerRegistry;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.PcerrBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.OpenObject;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PcepErrorObject;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PcerrMessage;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Open;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessageBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.Errors;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.ErrorsBuilder;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.Request;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.RequestBuilder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.Session;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.SessionBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.request.Rps;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.request.RpsBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
40 import com.google.common.collect.Lists;
43 * Parser for {@link PcerrMessage}
45 public class PCEPErrorMessageParser extends AbstractMessageParser {
47 public static final int TYPE = 6;
49 public PCEPErrorMessageParser(final ObjectHandlerRegistry registry) {
54 public void serializeMessage(final Message message, final ByteBuf buffer) {
55 if (!(message instanceof PcerrMessage)) {
56 throw new IllegalArgumentException("Wrong instance of Message. Passed instance " + message.getClass()
57 + ". Nedded ErrorMessage.");
59 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessage err = ((PcerrMessage) message).getPcerrMessage();
61 if (err.getErrors() == null || err.getErrors().isEmpty()) {
62 throw new IllegalArgumentException("Errors should not be empty.");
65 if (err.getErrorType() instanceof Request) {
66 final List<Rps> rps = ((Request) err.getErrorType()).getRps();
67 for (final Rps r : rps) {
68 buffer.writeBytes(serializeObject(r.getRp()));
72 for (final Errors e : err.getErrors()) {
73 buffer.writeBytes(serializeObject(e));
76 if (err.getErrorType() instanceof Session) {
77 buffer.writeBytes(serializeObject(((Session) err.getErrorType()).getOpen()));
82 public PcerrMessage parseMessage(final byte[] buffer) throws PCEPDeserializerException, PCEPDocumentedException {
83 if (buffer == null || buffer.length == 0) {
84 throw new PCEPDeserializerException("Error message is empty.");
86 final List<Object> objs = parseObjects(buffer);
87 PcerrMessage m = null;
90 } catch (final PCEPDocumentedException e) {
91 final PCEPErrorMapping maping = PCEPErrorMapping.getInstance();
92 return new PcerrBuilder().setPcerrMessage(
93 new PcerrMessageBuilder().setErrors(
94 Arrays.asList(new ErrorsBuilder().setType(maping.getFromErrorsEnum(e.getError()).type).setValue(
95 maping.getFromErrorsEnum(e.getError()).value).build())).build()).build();
100 private PcerrMessage validate(final List<Object> objects) throws PCEPDeserializerException, PCEPDocumentedException {
101 if (objects == null) {
102 throw new IllegalArgumentException("Passed list can't be null.");
106 final List<Rps> requestParameters = Lists.newArrayList();
107 final List<Errors> errorObjects = Lists.newArrayList();
108 final PcerrMessageBuilder b = new PcerrMessageBuilder();
112 while (!objects.isEmpty()) {
113 obj = objects.get(0);
115 if (obj instanceof UnknownObject) {
116 return new PcerrBuilder().setPcerrMessage(b.setErrors(((UnknownObject) obj).getErrors()).build()).build();
121 if (obj instanceof PcepErrorObject) {
122 final PcepErrorObject o = (PcepErrorObject) obj;
123 errorObjects.add((Errors) o);
129 if (obj instanceof OpenObject) {
130 openObj = (Open) obj;
134 while (!objects.isEmpty()) {
138 if (obj instanceof Rp) {
139 final Rp o = ((Rp) obj);
140 if (o.isProcessingRule()) {
141 throw new PCEPDocumentedException("Invalid setting of P flag.", PCEPErrors.P_FLAG_NOT_SET);
143 requestParameters.add(new RpsBuilder().setRp(o).build());
148 if (obj instanceof PcepErrorObject) {
149 final PcepErrorObject o = (PcepErrorObject) obj;
150 errorObjects.add((Errors) o);
175 if (errorObjects.isEmpty() && errorObjects.isEmpty()) {
176 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
179 if (!objects.isEmpty()) {
180 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
182 if (requestParameters != null) {
183 b.setErrorType(new RequestBuilder().setRps(requestParameters).build());
185 if (openObj != null) {
186 b.setErrorType(new SessionBuilder().setOpen(openObj).build());
189 return new PcerrBuilder().setPcerrMessage(b.setErrors(errorObjects).build()).build();
193 public int getMessageType() {