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.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();
56 Preconditions.checkArgument(err.getErrors() != null && !err.getErrors().isEmpty(), "Errors should not be empty.");
57 final ByteBuf buffer = Unpooled.buffer();
58 serializeCases(err, buffer);
59 for (final Errors e : err.getErrors()) {
60 serializeObject(e.getErrorObject(), buffer);
63 if (err.getErrorType() instanceof SessionCase) {
64 serializeObject(((SessionCase) err.getErrorType()).getSession().getOpen(), buffer);
66 MessageUtil.formatMessage(TYPE, buffer, out);
70 * If needed, subclasses can override this method.
72 protected void serializeCases(final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.pcerr.message.PcerrMessage err, final ByteBuf buffer) {
73 if (err.getErrorType() instanceof RequestCase) {
74 final List<Rps> rps = ((RequestCase) err.getErrorType()).getRequest().getRps();
75 for (final Rps r : rps) {
76 serializeObject(r.getRp(), buffer);
82 protected PcerrMessage validate(final List<Object> objects, final List<Message> errors) throws PCEPDeserializerException {
83 Preconditions.checkArgument(objects != null, "Passed list can't be null.");
84 if (objects.isEmpty()) {
85 throw new PCEPDeserializerException("Error message is empty.");
87 final List<Rps> requestParameters = new ArrayList<>();
88 final List<Errors> errorObjects = new ArrayList<>();
89 final PcerrMessageBuilder b = new PcerrMessageBuilder();
91 Object obj = objects.get(0);
92 State state = State.INIT;
94 if (obj instanceof ErrorObject) {
95 final ErrorObject o = (ErrorObject) obj;
96 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
97 state = State.ERROR_IN;
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, Optional.absent()));
104 requestParameters.add(new RpsBuilder().setRp(o).build());
107 if (state.equals(State.INIT)) {
108 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
111 while (!objects.isEmpty() && !state.equals(State.END)) {
112 obj = objects.get(0);
113 if (obj instanceof UnknownObject) {
114 return new PcerrBuilder().setPcerrMessage(b.setErrors(((UnknownObject) obj).getErrors()).build()).build();
116 state = insertObject(state, errorObjects, obj, requestParameters, b);
117 if (!state.equals(State.END)) {
121 if (errorObjects.isEmpty()) {
122 throw new PCEPDeserializerException("At least one PCEPErrorObject is mandatory.");
124 if (!objects.isEmpty()) {
125 throw new PCEPDeserializerException("Unprocessed Objects: " + objects);
127 if (!requestParameters.isEmpty()) {
128 b.setErrorType(new RequestCaseBuilder().setRequest(new RequestBuilder().setRps(requestParameters).build()).build());
130 return new PcerrBuilder().setPcerrMessage(b.setErrors(errorObjects).build()).build();
133 private State insertObject(final State state, final List<Errors> errorObjects, final Object obj, final List<Rps> requestParameters, final PcerrMessageBuilder b) {
136 if (obj instanceof Rp) {
137 final Rp o = ((Rp) obj);
138 requestParameters.add(new RpsBuilder().setRp(o).build());
142 if (obj instanceof ErrorObject) {
143 final ErrorObject o = (ErrorObject) obj;
144 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
145 return State.ERROR_IN;
148 if (obj instanceof Open) {
149 b.setErrorType(new SessionCaseBuilder().setSession(new SessionBuilder().setOpen((Open) obj).build()).build());
150 return State.OPEN_IN;
153 if (obj instanceof ErrorObject) {
154 final ErrorObject o = (ErrorObject) obj;
155 errorObjects.add(new ErrorsBuilder().setErrorObject(o).build());
167 INIT, ERROR_IN, RP_IN, OPEN, ERROR, OPEN_IN, END