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.Optional;
11 import com.google.common.base.Preconditions;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import java.util.ArrayList;
15 import java.util.List;
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.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.PcerrMessage;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.open.object.Open;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcep.error.object.ErrorObject;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessageBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.Errors;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.ErrorsBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.RequestCase;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.RequestCaseBuilder;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.SessionCase;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.SessionCaseBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.request._case.RequestBuilder;
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.Rps;
37 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;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.pcerr.message.error.type.session._case.SessionBuilder;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.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, "Wrong instance of Message. Passed instance of %s. Need PcerrMessage.", message.getClass());
55 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessage err = ((PcerrMessage) message).getPcerrMessage();
57 if (err.getErrors() == null || err.getErrors().isEmpty()) {
58 throw new IllegalArgumentException("Errors should not be empty.");
60 final ByteBuf buffer = Unpooled.buffer();
61 if (err.getErrorType() instanceof RequestCase) {
62 final List<Rps> rps = ((RequestCase) err.getErrorType()).getRequest().getRps();
63 for (final Rps r : rps) {
64 serializeObject(r.getRp(), buffer);
67 for (final Errors e : err.getErrors()) {
68 serializeObject(e.getErrorObject(), buffer);
71 if (err.getErrorType() instanceof SessionCase) {
72 serializeObject(((SessionCase) err.getErrorType()).getSession().getOpen(), buffer);
74 MessageUtil.formatMessage(TYPE, buffer, out);
78 protected PcerrMessage validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
79 if (objects == null) {
80 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();
89 Object obj = objects.get(0);
90 State state = State.INIT;
92 if (obj instanceof ErrorObject) {
93 final ErrorObject o = (ErrorObject) obj;
94 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
95 state = State.ERROR_IN;
96 } else if (obj instanceof Rp) {
97 final Rp o = (Rp) obj;
98 if (o.isProcessingRule()) {
99 errors.add(createErrorMsg(PCEPErrors.P_FLAG_NOT_SET, Optional.<Rp>absent()));
102 requestParameters.add(new RpsBuilder().setRp(o).build());
105 if (state.equals(State.INIT)) {
106 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
109 while (!objects.isEmpty()) {
110 obj = objects.get(0);
111 if (obj instanceof UnknownObject) {
112 return new PcerrBuilder().setPcerrMessage(b.setErrors(((UnknownObject) obj).getErrors()).build()).build();
117 if (obj instanceof ErrorObject) {
118 final ErrorObject o = (ErrorObject) obj;
119 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
120 state = State.ERROR_IN;
125 if (obj instanceof Rp) {
126 final Rp o = ((Rp) obj);
127 requestParameters.add(new RpsBuilder().setRp(o).build());
132 state = State.OPEN_IN;
133 if (obj instanceof Open) {
134 b.setErrorType(new SessionCaseBuilder().setSession(new SessionBuilder().setOpen((Open) obj).build()).build());
138 state = State.OPEN_IN;
139 if (obj instanceof ErrorObject) {
140 final ErrorObject o = (ErrorObject) obj;
141 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
153 if (!state.equals(State.END)) {
157 if (errorObjects.isEmpty()) {
158 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
160 if (!objects.isEmpty()) {
161 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
163 if (!requestParameters.isEmpty()) {
164 b.setErrorType(new RequestCaseBuilder().setRequest(new RequestBuilder().setRps(requestParameters).build()).build());
166 return new PcerrBuilder().setPcerrMessage(b.setErrors(errorObjects).build()).build();
170 INIT, ERROR_IN, RP_IN, OPEN, ERROR, OPEN_IN, END