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 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 org.opendaylight.protocol.pcep.spi.AbstractMessageParser;
16 import org.opendaylight.protocol.pcep.spi.MessageUtil;
17 import org.opendaylight.protocol.pcep.spi.ObjectRegistry;
18 import org.opendaylight.protocol.pcep.spi.PCEPDeserializerException;
19 import org.opendaylight.protocol.pcep.spi.PCEPErrors;
20 import org.opendaylight.protocol.pcep.spi.UnknownObject;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.message.rev131007.PcerrBuilder;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Message;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.Object;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.PcerrMessage;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Open;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcep.error.object.ErrorObject;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessageBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.Errors;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.ErrorsBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.RequestCase;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.RequestCaseBuilder;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.SessionCase;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.SessionCaseBuilder;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.request._case.RequestBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.request._case.request.Rps;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.request._case.request.RpsBuilder;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.session._case.SessionBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.rp.object.Rp;
41 * Parser for {@link PcerrMessage}
43 public class PCEPErrorMessageParser extends AbstractMessageParser {
45 public static final int TYPE = 6;
47 public PCEPErrorMessageParser(final ObjectRegistry registry) {
52 public void serializeMessage(final Message message, final ByteBuf out) {
53 Preconditions.checkArgument(message instanceof PcerrMessage, "Wrong instance of Message. Passed instance of %s. Need PcerrMessage.", message.getClass());
54 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessage err = ((PcerrMessage) message).getPcerrMessage();
56 if (err.getErrors() == null || err.getErrors().isEmpty()) {
57 throw new IllegalArgumentException("Errors should not be empty.");
59 final ByteBuf buffer = Unpooled.buffer();
60 if (err.getErrorType() instanceof RequestCase) {
61 final List<Rps> rps = ((RequestCase) err.getErrorType()).getRequest().getRps();
62 for (final Rps r : rps) {
63 serializeObject(r.getRp(), buffer);
66 for (final Errors e : err.getErrors()) {
67 serializeObject(e.getErrorObject(), buffer);
70 if (err.getErrorType() instanceof SessionCase) {
71 serializeObject(((SessionCase) err.getErrorType()).getSession().getOpen(), buffer);
73 MessageUtil.formatMessage(TYPE, buffer, out);
77 protected PcerrMessage validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
78 if (objects == null) {
79 throw new IllegalArgumentException("Passed list can't be null.");
82 if (objects.isEmpty()) {
83 throw new PCEPDeserializerException("Error message is empty.");
85 final List<Rps> requestParameters = new ArrayList<>();
86 final List<Errors> errorObjects = new ArrayList<>();
87 final PcerrMessageBuilder b = new PcerrMessageBuilder();
90 State state = State.Init;
93 if (obj instanceof ErrorObject) {
94 final ErrorObject o = (ErrorObject) obj;
95 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
96 state = State.ErrorIn;
98 } else if (obj instanceof Rp) {
99 final Rp o = (Rp) obj;
100 if (o.isProcessingRule()) {
101 errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET));
104 requestParameters.add(new RpsBuilder().setRp(o).build());
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();
118 if (obj instanceof ErrorObject) {
119 final ErrorObject o = (ErrorObject) obj;
120 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
121 state = State.ErrorIn;
126 if (obj instanceof Rp) {
127 final Rp o = ((Rp) obj);
128 requestParameters.add(new RpsBuilder().setRp(o).build());
133 state = State.OpenIn;
134 if (obj instanceof Open) {
135 b.setErrorType(new SessionCaseBuilder().setSession(new SessionBuilder().setOpen((Open) obj).build()).build());
139 state = State.OpenIn;
140 if (obj instanceof ErrorObject) {
141 final ErrorObject o = (ErrorObject) obj;
142 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
154 if (!state.equals(State.End)) {
159 if (errorObjects.isEmpty()) {
160 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
163 if (!objects.isEmpty()) {
164 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
166 if (!requestParameters.isEmpty()) {
167 b.setErrorType(new RequestCaseBuilder().setRequest(new RequestBuilder().setRps(requestParameters).build()).build());
170 return new PcerrBuilder().setPcerrMessage(b.setErrors(errorObjects).build()).build();
174 Init, ErrorIn, RpIn, Open, Error, OpenIn, End