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.spi.AbstractMessageParser;
21 import org.opendaylight.protocol.pcep.spi.HandlerRegistry;
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.RpObject;
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.session.Open;
39 import com.google.common.collect.Lists;
42 * Parser for {@link PcerrMessage}
44 public class PCEPErrorMessageParser extends AbstractMessageParser {
46 public final int TYPE = 6;
48 public PCEPErrorMessageParser(final HandlerRegistry registry) {
53 public void serializeMessage(final Message message, final ByteBuf buffer) {
54 if (!(message instanceof PcerrMessage))
55 throw new IllegalArgumentException("Wrong instance of Message. Passed instance " + message.getClass()
56 + ". Nedded ErrorMessage.");
57 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessage err = ((PcerrMessage) message).getPcerrMessage();
59 if (err.getErrors() == null || err.getErrors().isEmpty())
60 throw new IllegalArgumentException("Errors should not be empty.");
62 if (err.getErrorType() instanceof Request) {
63 final List<Rps> rps = ((Request) err.getErrorType()).getRps();
64 for (final Rps r : rps) {
65 buffer.writeBytes(serializeObject(r));
69 for (final Errors e : err.getErrors()) {
70 buffer.writeBytes(serializeObject(e));
73 if (err.getErrorType() instanceof Session) {
74 buffer.writeBytes(serializeObject(((Session) err.getErrorType()).getOpen()));
79 public PcerrMessage parseMessage(final byte[] buffer) throws PCEPDeserializerException, PCEPDocumentedException {
80 if (buffer == null || buffer.length == 0) {
81 throw new PCEPDeserializerException("Error message is empty.");
83 final List<Object> objs = parseObjects(buffer);
84 PcerrMessage m = null;
87 } catch (final PCEPDocumentedException e) {
88 final PCEPErrorMapping maping = PCEPErrorMapping.getInstance();
89 return new PcerrBuilder().setPcerrMessage(
90 new PcerrMessageBuilder().setErrors(
91 Arrays.asList(new ErrorsBuilder().setType(maping.getFromErrorsEnum(e.getError()).type).setValue(
92 maping.getFromErrorsEnum(e.getError()).value).build())).build()).build();
97 private PcerrMessage validate(final List<Object> objects) throws PCEPDeserializerException, PCEPDocumentedException {
99 throw new IllegalArgumentException("Passed list can't be null.");
102 final List<Rps> requestParameters = Lists.newArrayList();
103 final List<Errors> errorObjects = Lists.newArrayList();
104 final PcerrMessageBuilder b = new PcerrMessageBuilder();
108 while (!objects.isEmpty()) {
109 obj = objects.get(0);
111 if (obj instanceof UnknownObject)
112 return new PcerrBuilder().setPcerrMessage(b.setErrors(((UnknownObject) obj).getErrors()).build()).build();
116 if (obj instanceof PcepErrorObject) {
117 final PcepErrorObject o = (PcepErrorObject) obj;
118 errorObjects.add((Errors) o);
124 if (obj instanceof OpenObject) {
125 openObj = (Open) obj;
129 while (!objects.isEmpty()) {
133 if (obj instanceof RpObject) {
134 final RpObject o = ((RpObject) obj);
135 if (o.isProcessingRule())
136 throw new PCEPDocumentedException("Invalid setting of P flag.", PCEPErrors.P_FLAG_NOT_SET);
137 requestParameters.add((Rps) o);
142 if (obj instanceof PcepErrorObject) {
143 final PcepErrorObject o = (PcepErrorObject) obj;
144 errorObjects.add((Errors) o);
168 if (errorObjects.isEmpty() && errorObjects.isEmpty())
169 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
171 if (!objects.isEmpty())
172 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
173 if (requestParameters != null)
174 b.setErrorType(new RequestBuilder().setRps(requestParameters).build());
176 b.setErrorType(new SessionBuilder().setOpen(openObj).build());
178 return new PcerrBuilder().setPcerrMessage(b.setErrors(errorObjects).build()).build();
182 public int getMessageType() {