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.parser.message;
10 import com.google.common.base.Preconditions;
11 import io.netty.buffer.ByteBuf;
12 import io.netty.buffer.Unpooled;
13 import java.util.ArrayList;
14 import java.util.List;
15 import java.util.Optional;
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.protocol.pcep.spi.UnknownObject;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev181109.PcerrBuilder;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Message;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Object;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.PcerrMessage;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.open.object.Open;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcep.error.object.ErrorObject;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.PcerrMessageBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.Errors;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.ErrorsBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.RequestCase;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.RequestCaseBuilder;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.SessionCase;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.SessionCaseBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.request._case.RequestBuilder;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.request._case.request.Rps;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.request._case.request.RpsBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message.pcerr.message.error.type.session._case.SessionBuilder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.rp.object.Rp;
42 * Parser for {@link PcerrMessage}.
44 public class PCEPErrorMessageParser extends AbstractMessageParser {
46 public static final int TYPE = 6;
48 public PCEPErrorMessageParser(final ObjectRegistry registry) {
53 public void serializeMessage(final Message message, final ByteBuf out) {
54 Preconditions.checkArgument(message instanceof PcerrMessage,
55 "Wrong instance of Message. Passed instance of %s. Need PcerrMessage.", message.getClass());
56 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message
57 .PcerrMessage err = ((PcerrMessage) message).getPcerrMessage();
58 Preconditions.checkArgument(err.getErrors() != null && !err.nonnullErrors().isEmpty(),
59 "Errors should not be empty.");
60 final ByteBuf buffer = Unpooled.buffer();
61 serializeCases(err, buffer);
62 for (final Errors e : err.nonnullErrors()) {
63 serializeObject(e.getErrorObject(), buffer);
66 if (err.getErrorType() instanceof SessionCase) {
67 serializeObject(((SessionCase) err.getErrorType()).getSession().getOpen(), buffer);
69 MessageUtil.formatMessage(TYPE, buffer, out);
73 * If needed, subclasses can override this method.
75 protected void serializeCases(
76 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.pcerr.message
77 .PcerrMessage err, final ByteBuf buffer) {
78 if (err.getErrorType() instanceof RequestCase) {
79 for (final Rps r : ((RequestCase) err.getErrorType()).getRequest().nonnullRps()) {
80 serializeObject(r.getRp(), buffer);
86 protected PcerrMessage validate(final List<Object> objects, final List<Message> errors)
87 throws PCEPDeserializerException {
88 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
89 if (objects.isEmpty()) {
90 throw new PCEPDeserializerException("Error message is empty.");
92 final List<Rps> requestParameters = new ArrayList<>();
93 final List<Errors> errorObjects = new ArrayList<>();
94 final PcerrMessageBuilder msgBuilder = new PcerrMessageBuilder();
96 Object obj = objects.get(0);
97 State state = State.INIT;
99 if (obj instanceof ErrorObject) {
100 final ErrorObject o = (ErrorObject) obj;
101 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
102 state = State.ERROR_IN;
103 } else if (obj instanceof Rp) {
104 final Rp o = (Rp) obj;
105 if (o.getProcessingRule()) {
106 errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.empty()));
109 requestParameters.add(new RpsBuilder().setRp(o).build());
112 if (state.equals(State.INIT)) {
113 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
116 while (!objects.isEmpty() && !state.equals(State.END)) {
117 obj = objects.get(0);
118 if (obj instanceof UnknownObject) {
119 return new PcerrBuilder()
120 .setPcerrMessage(msgBuilder.setErrors(((UnknownObject) obj).getErrors()).build()).build();
122 state = insertObject(state, errorObjects, obj, requestParameters, msgBuilder);
123 if (!state.equals(State.END)) {
127 if (errorObjects.isEmpty()) {
128 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
130 if (!objects.isEmpty()) {
131 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
133 if (!requestParameters.isEmpty()) {
134 msgBuilder.setErrorType(new RequestCaseBuilder()
135 .setRequest(new RequestBuilder().setRps(requestParameters).build()).build());
137 return new PcerrBuilder().setPcerrMessage(msgBuilder.setErrors(errorObjects).build()).build();
140 private static State insertObject(final State state, final List<Errors> errorObjects, final Object obj,
141 final List<Rps> requestParameters, final PcerrMessageBuilder msgBuilder) {
144 if (obj instanceof Rp) {
145 final Rp o = (Rp) obj;
146 requestParameters.add(new RpsBuilder().setRp(o).build());
151 if (obj instanceof ErrorObject) {
152 final ErrorObject o = (ErrorObject) obj;
153 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
154 return State.ERROR_IN;
158 if (obj instanceof Open) {
159 msgBuilder.setErrorType(
160 new SessionCaseBuilder().setSession(new SessionBuilder().setOpen((Open) obj).build()).build());
161 return State.OPEN_IN;
165 if (obj instanceof ErrorObject) {
166 final ErrorObject o = (ErrorObject) obj;
167 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
180 INIT, ERROR_IN, RP_IN, OPEN, ERROR, OPEN_IN, END