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.getErrors().isEmpty(),
59 "Errors should not be empty.");
60 final ByteBuf buffer = Unpooled.buffer();
61 serializeCases(err, buffer);
62 for (final Errors e : err.getErrors()) {
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 final List<Rps> rps = ((RequestCase) err.getErrorType()).getRequest().getRps();
80 for (final Rps r : rps) {
81 serializeObject(r.getRp(), buffer);
87 protected PcerrMessage validate(final List<Object> objects, final List<Message> errors)
88 throws PCEPDeserializerException {
89 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
90 if (objects.isEmpty()) {
91 throw new PCEPDeserializerException("Error message is empty.");
93 final List<Rps> requestParameters = new ArrayList<>();
94 final List<Errors> errorObjects = new ArrayList<>();
95 final PcerrMessageBuilder msgBuilder = new PcerrMessageBuilder();
97 Object obj = objects.get(0);
98 State state = State.INIT;
100 if (obj instanceof ErrorObject) {
101 final ErrorObject o = (ErrorObject) obj;
102 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
103 state = State.ERROR_IN;
104 } else if (obj instanceof Rp) {
105 final Rp o = (Rp) obj;
106 if (o.isProcessingRule()) {
107 errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.empty()));
110 requestParameters.add(new RpsBuilder().setRp(o).build());
113 if (state.equals(State.INIT)) {
114 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
117 while (!objects.isEmpty() && !state.equals(State.END)) {
118 obj = objects.get(0);
119 if (obj instanceof UnknownObject) {
120 return new PcerrBuilder()
121 .setPcerrMessage(msgBuilder.setErrors(((UnknownObject) obj).getErrors()).build()).build();
123 state = insertObject(state, errorObjects, obj, requestParameters, msgBuilder);
124 if (!state.equals(State.END)) {
128 if (errorObjects.isEmpty()) {
129 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
131 if (!objects.isEmpty()) {
132 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
134 if (!requestParameters.isEmpty()) {
135 msgBuilder.setErrorType(new RequestCaseBuilder()
136 .setRequest(new RequestBuilder().setRps(requestParameters).build()).build());
138 return new PcerrBuilder().setPcerrMessage(msgBuilder.setErrors(errorObjects).build()).build();
141 private static State insertObject(final State state, final List<Errors> errorObjects, final Object obj,
142 final List<Rps> requestParameters, final PcerrMessageBuilder msgBuilder) {
145 if (obj instanceof Rp) {
146 final Rp o = (Rp) obj;
147 requestParameters.add(new RpsBuilder().setRp(o).build());
152 if (obj instanceof ErrorObject) {
153 final ErrorObject o = (ErrorObject) obj;
154 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
155 return State.ERROR_IN;
159 if (obj instanceof Open) {
160 msgBuilder.setErrorType(
161 new SessionCaseBuilder().setSession(new SessionBuilder().setOpen((Open) obj).build()).build());
162 return State.OPEN_IN;
166 if (obj instanceof ErrorObject) {
167 final ErrorObject o = (ErrorObject) obj;
168 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
181 INIT, ERROR_IN, RP_IN, OPEN, ERROR, OPEN_IN, END